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Journal articles on the topic 'Near-well zone physic-geological model'

Author: Grafiati

Published: 28 May 2022

Last updated: 18 July 2025

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1

Kereyev, Anuar B., Almira Ye Aldebek, Vladislav V. Bondaruk, and Altynbek S. Mardanov. "Fracture Modeling of a Carbonate Reservoir: A Case Study of the East Urikhtau Field." Kazakhstan journal for oil & gas industry 7, no. 1 (2025): 19–31. https://doi.org/10.54859/kjogi108799.

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Background: Fracture Modeling of carbonate reservoirs plays a key role in predicting well productivity and enhancing field development efficiency. The East Urikhtau field, located in the eastern flank zone of the Pre-Caspian Depression, features a complex tectonic structure with an extensive system of faults and fractures. These geological features significantly impact the filtration and storage properties of carbonate reservoirs, making advanced geological modeling techniques necessary. A comprehensive fracture model allows a more precise evaluation of structural heterogeneities and their eff

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Soromotin, Andrey V., and Dmitriy A. Martyushev. "Integration of field data and application of machine learning methods to assess the condition of the near-wellbore zone of carbonate reservoirs." Bulletin of the Tomsk Polytechnic University Geo Assets Engineering 336, no. 1 (2025): 50–60. https://doi.org/10.18799/24131830/2025/1/4581.

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Relevance. Increase in the share of hard-to-recover reserves. Often, for the effective development of complex reservoirs, methods of enhanced oil recovery and production intensification are used. Currently, the feasibility of carrying out geological and technical measures is based on the results of interpretation well tests, which allows assessing the condition of the near-wellbore zone. The disadvantages of this research method are a long shutdown (as a result, “shortfalls” of oil) and increased risks of failure to bring wells into operation. In this regard, the integration of field data and

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Tokarevsky, O., and I. Iarmosh. "Assessing Impact of Sorption in Geological Medium on Permissible Activity of Radioactive Waste in Near-Surface Disposal Facilities." Nuclear and Radiation Safety, no. 3(75) (August 22, 2017): 34–39. http://dx.doi.org/10.32918/nrs.2017.3(75).06.

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The paper considers the conservative scenario of potential exposure that envisages simultaneous destruction of barriers with simultaneous release of radionuclides by the example of Lot 3 near-surface radioactive waste disposal facility at the Vektor Industrial Complex located in the Chornobyl Exclusion Zone. A conceptual model that considers migration of radionuclides through the aeration zone and aquifer to the potable water well, as well as mixing of infiltration water containing radionuclides with ground water in case of reaching the aquifer, was developed to analyze the mentioned scenario.

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Bychkov, A. Yu, Yu A. Popova, O. E. Kikvadze, and N. V. Lubnina. "Thermodynamic model of chemical re-magnetization on the example of Girvas paleovolcano of the Onega structure of Karelian craton." Moscow University Bulletin. Series 4. Geology, no. 1 (February 28, 2019): 38–45. http://dx.doi.org/10.33623/0579-9406-2019-1-38-45.

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Volcano Girvas is a complexly constructed volcano complex of the Yatuli age. Apparently, it is a shield lava volcano, which was probably one of the supply channels of the vast lava field of the western Prionezhie region within the Girvas volcanic zone. Despite the fact that the Girvassky volcano is bare only fragmentary, the structure of the current is perfectly preserved in the rocks, allowing to reconstruct the direction of flow. Among these rocks, there is a zone of postvolcanic hydrothermal changes in the rocks, consisting mainly of nesting and veined tourmalization and silicification, as

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Kühn, Michael, Vaughan Stagpoole, Graham Paul D. Viskovic, and Thomas Kempka. "New data for a model update of the Waiwera geothermal reservoir in New Zealand." Advances in Geosciences 65 (September 27, 2024): 1–7. http://dx.doi.org/10.5194/adgeo-65-1-2024.

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Abstract. Waiwera is a small coastal village located on New Zealand's North Island above a geothermal reservoir. The origin of the hot water is not well understood. An inferred fault zone at the base of the reservoir is thought to channelise the uprising thermal water. The most recent geological model of Waiwera integrates the depositional environment, mineralogical composition and stratigraphic structures. Coupled numerical fluid flow, heat and transport simulations indicated that further model revisions are required, with support by additional field campaigns, to increase the knowledge of th

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Tompkins, Michael J., David L. Alumbaugh, Darrell T. Stanley, and Xinyou Lu. "Numerical analysis of near‐borehole and anisotropeic layer effects on the response of multicomponent induction logging tools." GEOPHYSICS 69, no. 1 (2004): 140–51. http://dx.doi.org/10.1190/1.1649382.

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We present finite‐difference simulation results that lend new insight into the behavior of multicomponent induction logging tools when in the presence of anisotropic layers, boreholes, and invasion zones. We use four independent models to investigate multicomponent tool properties as well as typical magnetic field responses. In addition, model variations with respect to formation dip angle, layer geometry, and conductivity provide data about the effects of geological variation on the multicomponent responses. Simulations suggest a coaxial tool configuration senses a depth of twice the source–r

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Yakushin, R. V., A. V. Chistolinov, V. S. Boldyrev, et al. "Research of Liquid Phase Oxidation of Aliphatic Alcohols in Plasma Chemical Water Treatment." Herald of the Bauman Moscow State Technical University. Series Natural Sciences, no. 1 (94) (February 2021): 92–108. http://dx.doi.org/10.18698/1812-3368-2021-1-92-108.

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Plasma chemistry is part of the development of high technology that meets the modern requirements of greening and resource conservation. The study of physic-chemical laws and processes occurring in the zone of action of electric discharge plasma near the surface of a liquid is of high scientific and applied interest. In the study, developed and patented by a team of authors, plasma-chemical reactors were used, which implement the treatment of a liquid with both barrier and glow discharges near the surface of the liquid phase in a flow-through mode. Solutions of primary and secondary aliphatic

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Ilienko, V., Т. Burakhovich, and А. Kushnir. "INTERPRETATION OF THE 3D GEOELECTRICAL MODEL OF THE INTERSECTION AREA OF THE ZVIZDAL-ZALISKA AND NEMYRIVSK FAULT ZONES." Visnyk of Taras Shevchenko National University of Kyiv. Geology, no. 2 (101) (2023): 31–37. http://dx.doi.org/10.17721/1728-2713.101.04.

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The interpretation of the deep three-dimensional geoelectricalal model of the central part of the Zvizdal-Zaliska and Brusyliv fault zones of the Ukrainian shield, which was built with the involvement of data from experimental observations of the Earth's low-frequency electromagnetic field conducted in 2019 by the Institute of Geophysics named after S.I. Subotin of the National Academy of Sciences of Ukraine, within the Ordyntsi-Lobachiv and Zoziv-Stryzhavka profiles was done. Experimental materials were processed with the PRC_MTMV software package, tipper estimates were obtained for periods o

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Koutsoupakis, Ioannis, Yiannis Tsompanakis, Pantelis Soupios, Panagiotis Kirmizakis, SanLinn Kaka, and Costas Providakis. "Seismic Risk Assessment of Chania, Greece, Using an Integrated Computational Approach." Applied Sciences 11, no. 23 (2021): 11249. http://dx.doi.org/10.3390/app112311249.

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This study develops a comprehensive seismic risk model for the city of Chania, in Greece, which is located ina highly seismic-prone region due to the occurrenceof moderate to large earthquakes because of the nearby major subduction zone between African and Eurasian tectonic plates. The main aim is to reduce the seismic risk for the study area by incorporating the spatial distribution of the near-surface shear wave velocity model and the soil classification, along with all possible seismic sources, taking into account historical events. The study incorporates and correlates various ground motio

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Hamdon, Alaa, Rabeea Znad, Hadeer Adeeb, and Abdalrhman Qubaa. "Seismotectonic Analysis at Part of Eastern Iraq Using Remote Sensing and Geographic Information System." Iraqi Geological Journal 57, no. 1F (2024): 209–20. http://dx.doi.org/10.46717/igj.57.1f.16ms-2024-6-25.

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The northern-eastern regions of Iraq are geologically considered one of the most important areas because they have different geological structures with highly complicated morphology and are located near the Zagros suture zone (region of the collision zone between the Arabian and Eurasian plates). Therefore, these areas are very active tectonically and seismically, from this point, this study has been focused on the geological interpretation and seismic activity analysis of the seismic events of the last 10 years on the eastern side of Iraq. This study aims to explain the sources and reasons fo

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Gadirov, Vagif. "Deep geological models of the ultra-deep well area Saatly DW-1 based on complex geophysical data." Geodynamics 1(36)2024, no. 1(36) (2024): 63–73. http://dx.doi.org/10.23939/jgd2024.01.063.

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The purpose of the article is to study the reasons for the failure to achieve the scientific and geological goals set for the ultra-deep well DW-1, drilled in the Saatli region of Azerbaijan. The analysis will focus on the existing deep models built for this region, which are deemed insufficient in reflecting the truth. The paper highlights the importance of adopting a new approach to the recently created deep model and its potential benefits to the scientific community.Methodology. The technique includes a detailed comprehensive analysis of the gravitational and magnetic fields in this region

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Menshov, О. "MAGNETIC MINERALOGICAL ANALYSIS OF SOILS AS A PART OF THE INTEGRATED GEOLOGICAL AND GEOPHYSICAL MODEL FOR THE HYDROCARBON PROSPECTING." Visnyk of Taras Shevchenko National University of Kyiv. Geology, no. 2(97) (2022): 39–43. http://dx.doi.org/10.17721/1728-2713.97.05.

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Magnetic minerals form or alter in the presence of hydrocarbons, making them a potential magnetic proxy for identifying hydrocarbon migration pathways. We concentrate in the precision magnetic mineralogical analyzes to understand what magnetic minerals in soil from the hydrocarbon fields are responsible for the magnetic signal. To illustrate the results of our studying, we consider the study area of the hydrocarbon deposits near the village Balabanivka, Bogodukhiv district, Kharkiv region. A collection of soil samples is represented by deep medium-humus chernozems. The thermomagnetic analyzes,

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Chernyshov, Sergei E., Sergey N. Popov, Anatoly D. Savich, and Vadim V. Derendyaev. "Analysis of wells cement sheath stability during shaped charge perforating based on geomechanical modeling." Georesursy 25, no. 2 (2023): 245–53. http://dx.doi.org/10.18599/grs.2023.2.18.

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Well cement sheath stability analysis for two oil-producing wells in the completion of productive formations by shaped charge perforating was performed. The data of direct measurements of pressures in the borehole at different distances from the cable head of the perforating tool at the moment of detonation, which exceeded 50 MPa, were used in the studies. The pressure values were approximated along the wellbore using a power law. To reliably predict the stress-strain state of the near-wellbore zone of the perforation interval, the ANSYS finite-element modeling software was used. To determine

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Delgado, José, Juan José Galiana-Merino, Francisco J. García-Tortosa, et al. "Ambient Noise Measurements to Constrain the Geological Structure of the Güevéjar Landslide (S Spain)." Applied Sciences 11, no. 4 (2021): 1454. http://dx.doi.org/10.3390/app11041454.

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The reactivation of very large landslides may cause severe damage to society. Its prevention and management requires detailed information on the geometry and structure of these landslides, but the use of standard techniques (boreholes) may be prohibitive from an economic point of view. To overcome these difficulties, geophysical techniques are of special interest because they allow for studying very large areas at a reasonable cost. In this paper, we present a case study wherein the analysis of ambient noise allowed us to produce a model of a large landslide near Granada (southern Spain). The

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Ghedan, Shawket G., Bertrand M. Thiebot, and Douglas A. Boyd. "Modeling Original Water Saturation in the Transition Zone of a Carbonate Oil Reservoir." SPE Reservoir Evaluation & Engineering 9, no. 06 (2006): 681–87. http://dx.doi.org/10.2118/88756-pa.

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Summary Accurately modeling water-saturation variation in transition zones is important to reservoir simulation for predicting recoverable oil and guiding field-development plans. The large transition zone of a heterogeneous Middle East reservoir was challenging to model. Core-calibrated, log-derived water saturations were used to generate saturation-height-function groups for nine reservoir-rock types. To match the large span of log water saturation (Sw) in the transition zone from the free-water level (FWL) to minimum Sw high in the oil column, three saturation-height functions per rock type

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Wang, Kelin, Herb Dragert, and H. Jay Melosh. "Finite element study of uplift and strain across Vancouver Island." Canadian Journal of Earth Sciences 31, no. 10 (1994): 1510–22. http://dx.doi.org/10.1139/e94-134.

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Geological evidence for sudden coastal subsidence along the west coast of southern Vancouver Island points to the occurrence of great prehistorical subduction earthquakes. Contemporary uplift and crustal shortening patterns in southern Vancouver Island appear to indicate that the subduction megathrust fault is currently locked. To understand better the dynamics of the observed surface deformation, we develop a finite element model of earthquake cycles for the northern Cascadia subduction zone across southern Vancouver Island, using a linear viscoelastic rheology. The model consists of the cont

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Di Maio, R., R. Salone, C. De Paola, E. Piegari, and S. Vitale. "3D Numerical Simulations of Non-Volcanic CO2 Degassing in Active Fault Zones Based on Geophysical Surveys." Surveys in Geophysics 42, no. 6 (2021): 1443–78. http://dx.doi.org/10.1007/s10712-021-09666-0.

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Abstract An integrated approach that combines geophysical surveys and numerical simulations is proposed to study the processes that govern the fluid flow along active fault zones. It is based on the reconstruction of the architecture of the investigated fault system, as well as the identification of possible paths for fluid migration, according to the distribution of geophysical parameters retrieved by multi-methodological geophysical prospecting. The aim is to establish, thanks to constraints deriving from different types of data (e.g., geological, geochemical and/or hydrogeological data), an

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De Luca, Domenico Antonio, Elena Cerino Abdin, Maria Gabriella Forno, Marco Gattiglio, Franco Gianotti, and Manuela Lasagna. "The Montellina Spring as an Example of Water Circulation in an Alpine DSGSD Context (NW Italy)." Water 11, no. 4 (2019): 700. http://dx.doi.org/10.3390/w11040700.

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Alpine areas, with normally fissured bedrock outcrops, do not typically contain important hydrologic reservoirs, except for small aquifers located in Quaternary sediments. By contrast, mountainous areas affected by deep-seated gravitational slope deformations (DSGSD), especially if covered by glacial sediments, contain large aquifers and are consequently promising for water exploitation. This last geological setting is observed, for example, in the lower Dora Baltea Valley (near the confluence with the Renanchio Basin) in which the Montellina Spring is located and exhibits a very high discharg

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Zheng, Chao, Dongmin Ma, Yue Chen, et al. "Biogenic Methane Accumulation and Production in the Jurassic Low-Rank Coal, Southwestern Ordos Basin." Energies 15, no. 9 (2022): 3255. http://dx.doi.org/10.3390/en15093255.

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Geological conditions are the key for coalbed methane (CBM) accumulation and production. However, the geological feature of CBM accumulation and production in the Jurassic of Ordos Basin lacks systematic and detailed evaluation, resulting in poor CBM production in this area. This study has determined the genetic types of gas according to geochemistry characteristics of the gas, the geological factors to control CBM accumulation and production performance were revealed, and a comprehensive method was established to evaluate favorable areas based on 32 sets of CBM well production data from Juras

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Kurtz, R. D., and J. C. Gupta. "Shallow and deep crustal conductivity studies in the Miramichi earthquake zone, New Brunswick." Canadian Journal of Earth Sciences 29, no. 7 (1992): 1549–64. http://dx.doi.org/10.1139/e92-122.

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The occurrence in early 1982 of four earthquakes in north-central New Brunswick with magnitudes ranging from 5.0 to 5.7 mb prompted detailed electromagnetic surveys of the epicentral region. Scalar audiomagnetotelluric (AMT) measurements, spaced at 100 m intervals or less, along a 7.5 km east–west profile located two conductors but did not find anomalies that could be associated with the proposed fault plane defined by the earthquake hypocentres.The 150 AMT measurements, combined with broad-band tensor soundings at 11 sites in a confined region (6 km × 7.5 km), provided an opportunity to study

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Stanko, Davor, Snježana Markušić, Tvrtko Korbar, and Josip Ivančić. "Estimation of the High-Frequency Attenuation Parameter Kappa for the Zagreb (Croatia) Seismic Stations." Applied Sciences 10, no. 24 (2020): 8974. http://dx.doi.org/10.3390/app10248974.

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The city of Zagreb (Croatian capital) is situated in the contact area of three major regional tectonic units: the SE Alps, NW Dinarides, and Tisza Unit in the southwestern margin of the Pannonian Basin. The Zagreb seismic zone encompasses the Medvednica Mountains and the city of Zagreb with its surrounding areas, which was struck by the strongest instrumentally recorded earthquake (M5.5) on 22 March 2020. The objective of this contribution is the estimation of the high-frequency attenuation spectral parameter kappa (κ) and its local site-specific component for the Zagreb (Croatia) seismic stat

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Al-Mahasneh, Mehaysen, Said Al Rabadi, and Hussam Khaswaneh. "Assessment of oil-producing wells by means of stimulation approach through matrix acidizing: a case study in the Azraq region." Journal of Petroleum Exploration and Production Technology 11, no. 9 (2021): 3479–91. http://dx.doi.org/10.1007/s13202-021-01256-5.

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AbstractThe acidizing approach belongs to the well workover operations, where acid mixtures are initially implemented to treat damage near the wellbore area after drilling operations have been completed. Acidizing treatment is characterized by removal of fine particles and debris from the porous media of the damaged zone, hence leading to improve oil production from wells. This study evaluates the assessment of the acidizing treatment in vertical oil-producing wells. Gradually, the damage formation was reduced and then eliminated, and to a great extent, was compensated with the better performa

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Hotokezaka, Kenta, Paz Beniamini, and Tsvi Piran. "Neutron star mergers as sites of r-process nucleosynthesis and short gamma-ray bursts." International Journal of Modern Physics D 27, no. 13 (2018): 1842005. http://dx.doi.org/10.1142/s0218271818420051.

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Neutron star mergers have been long considered as promising sites of heavy [Formula: see text]-process nucleosynthesis. We overview the observational evidence supporting this scenario including: the total amount of [Formula: see text]-process elements in the galaxy, extreme metal-poor stars, geological radioactive elemental abundances, dwarf galaxies and short gamma-ray bursts (sGRBs). Recently, the advanced LIGO and Virgo observatories discovered a gravitational-wave signal of a neutron star merger, GW170817, as well as accompanying multi-wavelength electromagnetic (EM) counterparts. The ultr

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Zhao, Deyang, Xiaocheng Zhou, Yongxian Zhang, et al. "Hydrogeochemical Study of Hot Springs along the Tingri—Nyima Rift: Relationship between Fluids and Earthquakes." Water 15, no. 8 (2023): 1634. http://dx.doi.org/10.3390/w15081634.

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Studying the hydrogeochemical characteristics of hot springs provides essential geochemical information for monitoring earthquake precursors and understanding the relationship between fluids, fractures, and earthquakes. This paper investigates the hydrogeochemical characteristics of hot springs along the Tingri–Nyima Rift (TNR) in southern Tibet, a seismically active zone at the collision front of the Indian and Asian-European plates. The major elements, hydrogen, and oxygen isotopes of seven thermal springs were analyzed from July 2019 to September 2021. The findings indicate that Mount Evere

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Zhao, Peidong, and K. E. Gray. "Analytical and Machine-Learning Analysis of Hydraulic Fracture-Induced Natural Fracture Slip." SPE Journal 26, no. 04 (2021): 1722–38. http://dx.doi.org/10.2118/205346-pa.

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Summary Stimulated reservoir volume (SRV) is a prime factor controlling well performance in unconventional shale plays. In general, SRV describes the extent of connected conductive fracture networks within the formation. Being a pre-existing weak interface, natural fractures (NFs) are the preferred failure paths. Therefore, the interaction of hydraulic fractures (HFs) and NFs is fundamental to fracture growth in a formation. Field observations of induced fracture systems have suggested complex failure zones occurring in the vicinity of HFs, which makes characterizing the SRV a significant chal

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Edigbue, Paul, Ismail Demirci, Irfan Akca, et al. "Application of Combined Local and Global Optimization Algorithms in Joint Interpretation of Direct Current Resistivity and Seismic Refraction Data: A Case Study of Dammam Dome, Eastern Saudi Arabia." Sensors 22, no. 23 (2022): 9337. http://dx.doi.org/10.3390/s22239337.

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The main geological structures in the Dammam Dome are defined by integrating geophysical measurements and applying new methodological approaches. Dammam Dome is characterized by a well-developed fracture/joints system; thus, high complexity of the subsurface is expected. Direct Current Resistivity (DCR) and Seismic Refraction (SR) geophysical survey aimed to map the Dammam Dome’s near-surface features. The geophysical data were acquired along two profiles in the northern part of Dammam Dome. To maximize the results from conducting DCR and SR measurements over a complex area, a combined local a

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Duchuk, Stepan, Sofiia Maksymuk, and Anatoliy Galamay. "Prospects of the oil and gas potential of the Northern Yavoriv area of the Bilche-Volytsia area of the Forecarpathian (according to the results of comprehensive geophysical and geochemical research)." Geology and Geochemistry of Combustible Minerals 1-2, no. 193-194 (2024): 69–80. http://dx.doi.org/10.15407/ggcm2024.193-194.069.

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A complex of geophysical and geochemical studies was carried out in the Bilche-Volytsia zone on the Northern Yavoriv area with the aim of detailing the geological structure of Mesozoic and Neogene deposits in the context of identifying oil and gas promising traps of various types and preparing them for deep drilling. To solve the problem, the following studies were applied: seismic surveying by the common depth point method, electrical surveying by the method of sounding the formation of the field in the near zone, geochemical surveying by the method of gas discharge surveying. The main result

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Majkrzak, Marcin, Sławomir Falkowicz, and Winicjusz Stanik. "The modification of filtration properties of porous pedia using Multizol micellar treatment fluid." Nafta-Gaz 79, no. 9 (2023): 567–75. http://dx.doi.org/10.18668/ng.2023.09.01.

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The need for the modification of filtration properties of rock media (most frequently porous rocks) appears frequently, e.g., in hydrocarbon exploitation. Exploitation of crude oil and natural gas is frequently accompanied by an excessive and uncontrolled inflow of reservoir water to the production well, which often results in a significant reduction of hydrocarbon production in the late period of reservoir exploitation. The control of water inflow, through modification treatments of rock filtration properties of the near wellbore zone, is the solution to this problem. The use of dedicated tre

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Verga, F. M., G. Giglio, F. Masserano, and L. Ruvo. "Validation of Near-Wellbore Fracture-Network Models With MDT." SPE Reservoir Evaluation & Engineering 5, no. 02 (2002): 116–25. http://dx.doi.org/10.2118/77298-pa.

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Summary A new approach was attempted to validate the reconstructed internal geometry of a fractured reservoir by reproducing the reservoir dynamic behavior monitored during modular dynamic tests (MDTs). The description of the reservoir fracture network was achieved by integrating relevant data that could be collected from wireline logs, conventional cores, small drilling-mud-loss analysis, and field-scale observations from outcrop analog inspection. Fracture types, properties, and distributions were thus defined, and a static model of the fractured reservoir was generated stochastically. The d

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Kalkreuth, W., J. Levandowski, P. Weniger, B. Krooss, R. Prissang, and A. Lima da Rosa. "Coal characterization and coalbed methane potential of the Chico-Lomã Coalfield, Paraná Basin, Brazil – Results from exploration borehole CBM001-CL-RS." Energy Exploration & Exploitation 38, no. 5 (2020): 1589–630. http://dx.doi.org/10.1177/0144598720931167.

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The aim of this study was to determine the coal characteristics in the Chico-Lomã coalfield, Brazil and to evaluate the potential of natural gas associated with the coal seams (CBM), by carrying out a test well (CBM001-CL-RS) for collecting coal samples, followed by gas desorption measurements, and petrographical and chemical analyses of the coals and their methane adsorption capacities. The gas collected was analyzed for gas composition, stable carbon and hydrogen isotopes. The results indicate a cumulative coal thickness of 11.46 m in well CBM001-CL-RS, associated with an igneous intrusion o

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Sarsembayeva, A. S., A. Zh Zhussupbekov, D. W. Wang, S. T. Mussakhanova, and A. R. Omarov. "Calculation and modeling of seasonally freezing soils of the road highway in the area of Kosshy (Astana, Kazakhstan) in Frost 3D program." Bulletin of L.N. Gumilyov Eurasian National University Technical Science and Technology Series 145, no. 4 (2023): 154–64. http://dx.doi.org/10.32523/2616-7263-2023-145-4-154-164.

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This article simulates ground conditions on a road section near Kosshy settlement (Astana, Kazakhstan) using Frost 3D modeling program. This program is used in scientific and engineering projects to assess the impact of climate change on frozen soils and engineering structures built on them. This program allowed to perform a thermal forecast for a section of road pavement, which is located in the third climatic zone, where the soil is saturated with moisture and has a high filtration rate. A three-dimensional model of the design area was also developed, taking into account the terrain and geol

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Chen, Liang, Shaowu Fan, Can Zhao, Lang Zhang, and Zhiheng Cheng. "Calculation Method of Overburden Damage Height Based on Fracture Mechanics Analysis of Soft and Hard Rock Layers." Geofluids 2019 (February 27, 2019): 1–15. http://dx.doi.org/10.1155/2019/3790264.

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Under the geological condition of soft and hard rock interaction stratum, the overburden damage height can provide a quantitative support for the design of the locations of gas drainage boreholes in the roof mining fracture zone and the determination of the hydraulic fracture zone in coal seam mining. The interbedded structure of overlying mud rock and sandstone in the Lu’an mining area in Shanxi is a typical soft and hard rock interaction stratum. In view of the lack of soft rock fracture mechanics analysis and the improper calculation of the damage height of overburden rock caused by constan

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Luo, Song, Huajian Yao, Jiannan Wang, Kangdong Wang, and Bin Liu. "Direct inversion of surface wave dispersion data with multiple-grid parametrizations and its application to a dense array in Chao Lake, eastern China." Geophysical Journal International 225, no. 2 (2021): 1432–52. http://dx.doi.org/10.1093/gji/ggab036.

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SUMMARY The direct surface wave tomography has become an efficient tool in imaging 3-D shallow Earth structure. However, some fundamental problems still exist in selecting the grids to parametrize the model space. This study proposes to implement a model parametrization approach with multiple grids to the direct surface wave tomography. These multiple grids represent several overlapping collocated grids with the same or different grid spacings, such as staggered grids, multiscale grids and multiscale-staggered grids. At each iteration, direct inversion is applied to each individual set of coll

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Osman, Waleed, Mohamed Kassab, Ahmed ElGibaly, and Hisham Samir. "Petrophysical evaluation of sandstone gas reservoir using integrated well logs and core data for the Lower Cretaceous Kharita formation, Western Desert, Egypt." Journal of Petroleum Exploration and Production Technology 11, no. 10 (2021): 3723–46. http://dx.doi.org/10.1007/s13202-021-01276-1.

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AbstractThis study aims to evaluate Kharita gas reservoir to enhance the production. The increase in water-cut ratio reduces the left hydrocarbons’ amount behind pipe. Accurate determination of pore throats, pores connectivity and fluid distribution are central elements in improved reservoir description. The integration of core and logging data responses is often used to draw inferences about lithology, depositional sequences, facies, and fluid content. These inferences are based on petrophysical models utilizing correlations among tools’ responses as well as rocks and fluids properties. Upper

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Priambodo, Galih, Mariyanto Mariyanto, and Wien Lestari. "Magnetotelluric data analysis using 2D resistivity modelling in Gondang region, Bojonegoro." Journal of Physics: Conference Series 2309, no. 1 (2022): 012020. http://dx.doi.org/10.1088/1742-6596/2309/1/012020.

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Abstract Previous studies in Gondang Subdistricthave identified underground mud reservoirnear a rock intrusion, while another study near Gondang Subdistrict has identified deep fault structures. This study will identify the distribution and characteristics of possible geological features in the area using magnetotelluric (MT) method to further describe the relationship between the geological features related to local geology. MT data measurements were conducted on 7 stations alonga north-south line, then modelled in 2D using nonlinear conjugate gradient algorithm. The model was used to describ

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Landa, J. L., R. N. Horne, M. M. Kamal, and C. D. Jenkins. "Reservoir Characterization Constrained to Well-Test Data: A Field Example." SPE Reservoir Evaluation & Engineering 3, no. 04 (2000): 325–34. http://dx.doi.org/10.2118/65429-pa.

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Summary In this paper we present a method to integrate well test, production, shut-in pressure, log, core, and geological data to obtain a reservoir description for the Pagerungan field, offshore Indonesia. The method computes spatial distributions of permeability and porosity and generates a pressure response for comparison to field data. This technique produced a good match with well-test data from three wells and seven shut-in pressures. The permeability and porosity distributions also provide a reasonable explanation of the observed effects of a nearby aquifer on individual wells. As a fin

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Settari, Antonin, G. M. Warren, Jerome Jacquemont, Paul Bieniawski, and Michel Dussaud. "Brine Disposal Into a Tight Stress-Sensitive Formation at Fracturing Conditions: Design and Field Experience." SPE Reservoir Evaluation & Engineering 2, no. 02 (1999): 186–95. http://dx.doi.org/10.2118/56001-pa.

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Summary This paper describes a study of the potential of a tight reservoir zone for disposal of brine generated in salt cavern leaching operations. The study included field injection testing, numerical analysis using uncoupled and coupled reservoir, geomechanical and fracturing modeling, laboratory work and design of a field injection monitoring program. It was shown that a surprising brine disposal capacity exists in the tight (0.03 md) Oriskany target formation. Initial screening was followed by carefully designed injection testing, laboratory work and subsequent evaluation with the aid of d

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Pertiwi, Tiaraningtias Bagus, Yunus Daud, and Fikri Fahmi. "Investigation of Geological Structure Using Magnetotelluric and Gravity Data Optimization on Non Volcanic Geothermal, Bora, Centre of Sulawesi." Journal of Geoscience, Engineering, Environment, and Technology 8, no. 02-2 (2023): 13–17. http://dx.doi.org/10.25299/jgeet.2023.8.02-2.13876.

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The existence of geological structures is one of the important parameters in determining the permeability zone in a geothermal system. This research was conducted in a non-volcanic geothermal field, Bora, located in the province of Central Sulawesi, aiming to identify the subsurface features, especially geological structures related to permeability zones by optimizing geophysical data. Magnetotelluric (MT) 3D inversion modelling is some of the latest methods to identify geological structural patterns in geothermal systems. The results of the MT model and analysis its parameters can find variat

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Ujiie, Kohtaro, Hanae Saishu, Ake Fagereng, et al. "An Explanation of Episodic Tremor and Slow Slip Constrained by Crack‐Seal Veins and Viscous Shear in Subduction Mélange." Geophysical Research Letters 45 (May 29, 2018): 5371–79. https://doi.org/10.1029/2018GL078374.

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Episodic tremor and slow slip (ETS) occurs in the transition zone between the locked seismogenic zone and the deeper, stably sliding zone. Actual mechanisms of ETS are enigmatic, caused by lack of geological observations and limited spatial resolution of geophysical information from the ETS source. We report that quartz‐filled, crack‐seal shear and extension veins in subduction mélange record repeated low‐angle thrust‐sense frictional sliding and tensile fracturing at near‐lithostatic fluid pressures. Crack‐seal veins were coeval with viscous shear zones that accommodated deformation by

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Ren, Meng, Jiaqi Cheng, Shengbin Zhang, Yutao Pang, and Weiyuan Zhu. "Ultimate Load-Bearing Capacity and Sustainable Performance of Pile Foundations of Yanji Suspension Bridge in Fault Zone Based on Refined Geological Model." Sustainability 16, no. 5 (2024): 1858. http://dx.doi.org/10.3390/su16051858.

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Pile foundation is the most important foundation type of long-span bridges, of which the ultimate load-bearing capacity affects the safety and sustainable performance of bridges. When constructing large-span bridges, the bridge site may be close to the adjacent fault zones, which seriously affects the safety and long-term performance of pile foundations, causing the failure and unsustainability of long-span bridges in their life-cycle service life. At present, there are no engineering design rules or methods for assessing the load-bearing capacity of the pile foundation near the fault zones. T

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Yi, Jian, Pujun Wang, Youfeng Gao, Ruishi Yao, Ranlei Zhao, and Chongyang Chen. "Vesicle distribution in basalt lava flow units in the Mesozoic rift basins of northeast China and its application in gas reservoir prediction." Canadian Journal of Earth Sciences 53, no. 1 (2016): 59–70. http://dx.doi.org/10.1139/cjes-2015-0004.

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The Mesozoic rift basins of northeast China are characterized by a significant proportion of basalt due to the progressive emplacement of basalt lava flows. The objective of this study was to construct vesicle distribution models of the basalt lava flow units, including conceptual geological models and thickness models, to understand the architecture of the basalt and the gas reservoir distribution. The conceptual geological models were constructed based on the characteristics of outcropping basalt lava flows, with supplemental seismic data used to extrapolate the lateral extents of large-scal

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Suzuki, Koichi, and Sadanari Higashi. "Groundwater flow after heavy rain in landslide‐slope area from 2-D inversion of resistivity monitoring data." GEOPHYSICS 66, no. 3 (2001): 733–43. http://dx.doi.org/10.1190/1.1444963.

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In the interest of monitoring the flow of groundwater from heavy rains, we conducted surface resistivity tomography through the vadose zone over several days. The measured data were modeled by 2-D inversion. A laboratory experiment was carried out to estimate the difference in geological characteristics. We measured the effects of groundwater fluctuation using two tank models: one using sand and one using bricks, which represent unconsolidated sediments and jointed rocks, respectively. In the sand model, we succeeded in monitoring water‐level fluctuation as the change in resistivity over time.

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Li, Mengyun, Guicai Zhang, Haihua Pei, Ping Jiang, and Liu Yang. "New calculation model and application research on weak water-flushed zones distribution prediction in radial flow well patterns of heterogeneous oil reservoirs." PLOS One 20, no. 5 (2025): e0323177. https://doi.org/10.1371/journal.pone.0323177.

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After prolonged waterflooding development, the main integrated oil reservoirs in the X Oilfield have largely entered the late stage of waterflooding, with an average water cut reaching approximately 98%. However, a significant amount of remaining oil still accumulates in the weak water-flushed zones of low-permeability layers, which presents substantial development potential. Therefore, accurately predicting the distribution of weak water-flushed zones is crucial for optimizing extraction measures and enhancing recovery rates. However, during the development process, especially in the ultra-hi

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Ye, Zhenni, Enke Hou, Huantong Li, Zhonghui Duan, and Fan Wu. "Analysis of Gas Content and Permeability Change Pattern of a Coal Reservoir in the Tectonic Positions Based on a THM Coupled Model." Geofluids 2021 (February 23, 2021): 1–15. http://dx.doi.org/10.1155/2021/5562545.

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The theory of coalbed methane distribution controlled by tectonism is a hot issue in the field of geofluid-geotectonic interaction research. Taking the geological structure in the scale range of the 1302 working face of a Guojiahe wellfield in a Yonglong mining area as the background, this paper focuses on the basic research problem of the influence of geological structure on the control of coal reservoir gas content and uses a THM coupling model to analyze the change of coalbed gas content and distribution characteristics of different tectonic positions. The change of CBM content and permeabi

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Etshekodi Lohadje, Joel, Franklin Muamba Kanangila, Jeremie Samba Vanga, and Nehemie Bikayi Tshiani. "PETROPHYSICAL CHARACTERIZATION BY 3D MODEL OF ZONES 4 AND 3 OF THE TURONIAN RESERVOIR OF THE KINKASI FIELD IN THE D.R. CONGO COASTAL BASIN." Romanian Journal of Petroleum & Gas Technology 4 (75), no. 2 (2023): 13–26. http://dx.doi.org/10.51865/jpgt.2023.02.02.

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Kinkasi is one of the oil fields of the DR Congo Coastal Basin. It is essentially formed of two main geological units (A and B) in the Turonian, each composed of a succession of different horizons (Zones) according to the type of siltstone. These two main units contain 6 Zones. Unit A consists of Z6 and Z5 of Coniacian age, while the rest of the reservoir (Z4, Z3, Z2 and Z1) is of Turonian age which is characteristic of Unit B. Indeed, the present study is devoted to the petrophysical characterization of the two zones Z4 and Z3 of the unit B in order to locate the interesting zones to develop

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Sanchaa, A. M., N. N. Nevedrova, and N. V. Shtabel. "DEEP STRUCTURE OF THE FAULT ZONE IN THE MUKHOR-TARKATA SITE OF THE CHUYA DEPRESSION ACCORDING TO NON-STATIONARY ELECTROMAGNETIC SOUNDING DATA USING THREE-DIMENSIONAL MODELING." Geology and mineral resources of Siberia, no. 2 (2021): 67–73. http://dx.doi.org/10.20403/2078-0575-2021-2-67-73.

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The paper presents the results of three-dimensional modeling of the fault structure in the central part of the Chuya depression in Gornyi Altai within the Mukhor-Tarkhata plot. On this site, from 2004 to the present, researchers of the IPGG SB RAS have been conducting regular annual observations by the method of nearfield time-domain electromagnetic sounding (TSB) to observe the process of restoration of the geological environment after the catastrophic Chuya earthquake with a magnitude of 7.3 in 2003. One of the aftereffects of the destructive earthquake is fracture zones expressed on the sur

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Shlykov, A. A., A. K. Saraev, and N. Yu Bobrov. "Joint Three-Dimensional Interpretation of AMTS and RMT-C Tensor Data in a Region Promising the Discovery of Primary Diamond Sources (Karelian Isthmus)." Физика земли 2023, no. 5 (2023): 131–49. http://dx.doi.org/10.31857/s0002333723050113.

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Abstract—The paper presents the techniques and results of the joint interpretation of AMTS and RMT-C tensor data in the area of the Karelian Isthmus near the village of Yablonovka, promising the discovery of primary diamond sources. Earlier, according to drilling data, fluid-cataclastic breccias, fluidolites, were identified here, which, according to modern geological concepts, can be primary diamond sources. The site is located in the marginal part of the Pash-Ladoga rift zone and is characterized by a complex three-dimensional structure. Under these conditions, in the presence of a system of

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Everaerts, Michel, and Jean-Louis Mansy. "Le filtrage des anomalies gravimetriques; une cle pour la comprehension des structures tectoniques du Boulonnais et de l'Artois (France)." Bulletin de la Société Géologique de France 172, no. 3 (2001): 267–74. http://dx.doi.org/10.2113/172.3.267.

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Abstract The geology of the Boulonnais has been well studied since the early part of the last century [Gosselet and Bertaut, 1873; Olry, 1904; Pruvost and Delepine, 1921]. Extensive coal exploration added substantially to the general understanding of the geology of the region but as outcrop is poor, many questions remain. Gravity methods used in the analysis of geological structures have had a long and successful history in helping to study the earth's crust for scientific and applied objectives. Regional gravity data are particularly useful in mapping geographic distribution and configuration

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Wang, Yongqian, Xuan Wang, Jiasheng Zhang, Xiaobin Chen, Wujun Zhu, and Yu Zhang. "Roof Subsidence and Movement Law of Composite Strata Mining: Insights from Physical and Numerical Modeling." Minerals 12, no. 1 (2021): 3. http://dx.doi.org/10.3390/min12010003.

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Sinking and horizontal movements are necessary parameters for assessing the potential impacts of surface subsidence in mining activities. Based on similarity criteria, the surface subsidence mechanism was studied using a physical model composed of similar materials such as sand, cement, and gypsum. With constant field geological parameters maintained in two angles of a coal seam, models of roof subsidence of composite rock were compared for different mining configurations. In accordance with observations from the physical model, it was concluded that subsidence and horizontal movement of strat

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Wang, Chenguang, Tianyang Li, Tao Yu, et al. "Factors Influencing Resistivity Inversion for CO2 Geological Storage Zones: A Quantitative Study." Sensors 25, no. 6 (2025): 1796. https://doi.org/10.3390/s25061796.

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This study establishes a homogeneous half-space and a horizontally layered two-layer background stratigraphy model using cross-borehole electrical resistivity tomography (ERT) based on an incomplete Gauss–Newton (IGN) method to investigate the resistivity inversion characteristics of CO2 storage zones. The effects of storage zone volume (VCO2), storage zone resistivity (ρCO2), background formation resistivity (ρf), and CO2 diffusion on inversion results were systematically analyzed, and the mechanisms underlying the influence of different parameters on inversion imaging were explored. The resu

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