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Artykuły w czasopismach na temat „Downhole water sink”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Ali, Fadi, Hassan Bahrami, Po Chu Byfield, and Jijin Mathew. "Production optimisation and water control in oil/water producing wells using horizontal downhole water sink technology." APPEA Journal 51, no. 1 (2011): 577. http://dx.doi.org/10.1071/aj10041.

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Water breakthrough and the flow of water towards the perforations of a producing well increase production operation costs and influence overall recovery efficiency. To control water production, a downhole water sink can be used in which a well is completed in both oil and water zones. Water is produced from an interval in water zone, which can result in the same pressure drop below water oil contact (WOC) as the pressure drop created by oil or gas production. This system can reduce water production through oil zone perforations. Water produced from water zone perforations can then be injected

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Wojtanowicz, Andrew K., and Miguel Armenta. "Assessment of Down-Hole Water Sink Technology for Controlling Water Inflow at Petroleum Wells." Journal of Energy Resources Technology 126, no. 4 (2004): 334–41. http://dx.doi.org/10.1115/1.1831282.

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Water inflow to petroleum wells hampers production of oil or gas leading to early shut downs of the wells without sufficient recovery of hydrocarbons in place. Downhole water sink (DWS) is a completion/production technique for producing water-free hydrocarbons with minimum amount of water from reservoirs with bottom water drive and strong tendency to water coning. DWS eliminates water invasion to hydrocarbon production by employing hydrodynamic mechanism of coning control in situ at the oil-water or gas-water contact. The mechanism is based upon a localized water drainage generated by another

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3

Shirman, E. I., and A. K. Wojtanowicz. "More Oil Using Downhole Water-Sink Technology: A Feasibility Study." SPE Production & Facilities 15, no. 04 (2000): 234–40. http://dx.doi.org/10.2118/66532-pa.

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4

Qin, Wenting, Pingya Luo, Lijie Guo, and Andrew K. Wojtanowicz. "Water leak control for the oil-producing wells using Downhole Water Sink Technology." Journal of Environmental Management 301 (January 2022): 113834. http://dx.doi.org/10.1016/j.jenvman.2021.113834.

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5

Anietie, N. Okon, Appah Dulu, and U. Akpabio Julius. "Water Coning Prediction Review and Control: Developing an Integrated Approach." Journal of Scientific Research & Reports 14, no. 4 (2017): 1–24. https://doi.org/10.9734/JSRR/2017/33291.

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In petroleum industry, oil production strategy to circumvent water coning in reservoirs with strong water drive is quit challenging. To ameliorate this oil production related problem, several water coning prediction models and control approaches have been developed by researchers. The prediction approaches include analytical, empirical and numerical approach. The analytical and empirical prediction approaches are qualitative water coning prediction approach with limited field scale application. However, these approaches model predictions can gain field application if upscale. Numerical approac

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6

Al-Mudhafar, Watheq J., David A. Wood, Dahlia A. Al-Obaidi, and Andrew K. Wojtanowicz. "Well Placement Optimization through the Triple-Completion Gas and Downhole Water Sink-Assisted Gravity Drainage (TC-GDWS-AGD) EOR Process." Energies 16, no. 4 (2023): 1790. http://dx.doi.org/10.3390/en16041790.

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Gas and downhole water sink-assisted gravity drainage (GDWS-AGD) is a new process of enhanced oil recovery (EOR) in oil reservoirs underlain by large bottom aquifers. The process is capital intensive as it requires the construction of dual-completed wells for oil production and water drainage and additional multiple vertical gas-injection wells. The costs could be substantially reduced by eliminating the gas-injection wells and using triple-completed multi-functional wells. These wells are dubbed triple-completion-GDWS-AGD (TC-GDWS-AGD). In this work, we design and optimize the TC-GDWS-AGD oil

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Al-Mudhafar, Watheq J., Dandina N. Rao, and Andrew K. Wojtanowicz. "Leveraging Designed Simulations and Machine Learning to Develop a Surrogate Model for Optimizing the Gas–Downhole Water Sink–Assisted Gravity Drainage (GDWS-AGD) Process to Improve Clean Oil Production." Processes 12, no. 6 (2024): 1174. http://dx.doi.org/10.3390/pr12061174.

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The Gas and Downhole Water Sink–Assisted Gravity Drainage (GDWS-AGD) process addresses gas flooding limitations in reservoirs surrounded by infinite-acting aquifers, particularly water coning. The GDWS-AGD technique reduces water cut in oil production wells, improves gas injectivity, and optimizes oil recovery, especially in reservoirs with high water coning. The GDWS-AGD process installs two 7-inch production casings bilaterally. Then, two 2-3/8-inch horizontal tubings are completed. One tubing produces oil above the oil–water contact (OWC) area, while the other drains water below it. A hydra

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8

Wojtanowicz, Andrew K., and Ephim I. Shirman. "Inflow Performance and Pressure Interference in Dual-Completed Wells With Water Coning Control." Journal of Energy Resources Technology 124, no. 4 (2002): 253–61. http://dx.doi.org/10.1115/1.1521165.

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Dual-completed wells with Downhole Water Sink (DWS) are used for water coning control in oil reservoirs with bottom water drive. In DWS wells, the second (bottom) completion—placed in the water column—is used for draining water. This prevents the water cone invasion and allows free oil inflow in the top completion. The decision on using DWS or a conventional (single-completed) well is based upon deliverability comparison of the two wells. This paper shows how to describe DWS well deliverability in terms of the top and bottom production rates, water cut, and pressure drawdown. Also, the effect

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9

Geng, Changyou, Xinli Lu, Hao Yu, Wei Zhang, Jiaqi Zhang, and Jiansheng Wang. "Theoretical Study of a Novel Power Cycle for Enhanced Geothermal Systems." Processes 10, no. 3 (2022): 516. http://dx.doi.org/10.3390/pr10030516.

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As obtained geofluids from enhanced geothermal systems usually have lower temperatures and contain chemicals and impurities, a novel power cycle (NPC) with a unit capacity of several hundred kilowatts has been configured and developed in this study, with particular reference to the geofluid temperature (heat source) ranging from 110 °C to 170 °C. Using a suitable CO2-based mixture working fluid, a transcritical power cycle was developed. The novelty of the developed power cycle lies in the fact that an increasing-pressure endothermic process was realized in a few-hundred-meters-long downhole h

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10

Lubis, Gerdha Agreska, and Maman Djumantara. "EVALUASI RESERVOIR BATURAJA PADA LAPANGAN FALCON DENGAN MENGGUNAKAN SIMULASI RESERVOIR UNTUK MEMAKSIMALKAN PRODUKSI." PETRO:Jurnal Ilmiah Teknik Perminyakan 6, no. 3 (2019): 71–76. http://dx.doi.org/10.25105/petro.v6i3.4275.

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Falcon Field begins with the discovery of the GG-1 wells are explored in August 1974. The program DST performed on one zone at Falcon Field in the Baturaja Formation producing 429 BOPD and 0.14 MMCFD. Then in 1978, Falcon Field was developed by constructing three wells on the platform GGA and in 1988 made eight more wells on the platform GGB. Falcon Field is thepeak production in 1978 amounted to 5670 BOPD. Currently Falcon Field still in production of 1000 BOPD and 451 MCFPD of four wells. Cumulative production in January 2014 at 10.57 and 9.08 MMCF MMBO, and Recovery Factor is currently at 1

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11

Stone, T. W., J. Bennett, D. H. S. Law, and J. A. Holmes. "Thermal Simulation With Multisegment Wells." SPE Reservoir Evaluation & Engineering 5, no. 03 (2002): 206–18. http://dx.doi.org/10.2118/78131-pa.

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Summary The extension of a previously reported well model to compositional and thermal applications is discussed. This multisegment, multibranching wellbore model has been fully coupled to a commercial reservoir simulator that can operate in black-oil, compositional, or thermal modes. In this paper, the discussion will focus on thermal, heavy-oil applications in which simulation requires a better representation of the wellbore geometry and the physics of fluid flow and heat transfer. Introduction Gravity-drainage processes with possible steam (SAGD) or gas vapor (VAPEX) assistance and other re

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12

Shirman, Ephim, and Andrew Wojtanowicz. "Vertical Interference Test in Wells With Downhole Water Sink Completions." Journal of Energy Resources Technology 131, no. 3 (2009). http://dx.doi.org/10.1115/1.3194772.

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Downhole water sink (DWS) well completions segregate production in the wellbore by producing water from the underlying aquifer and oil—from the oil zone of the reservoir. A pump drains water from the bottom completion to create a pressure drawdown that prevents water from coning up to the top, oil producing zone. Successful application of DWS technology in wells with water-coning problem requires effective isolation between the top and bottom completions of the well. Since DWS technology requires dual completion, the completion is configured for vertical interference testing. The problem is th

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13

Marcano, L., and A. K. Wojtanowicz. "Dual Gas Lift in Wells With Downhole Water Sink Completions." Journal of Canadian Petroleum Technology 44, no. 12 (2005). http://dx.doi.org/10.2118/05-12-01.

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14

Shirman, Ephim, Andrew K. Wojtanowicz, and Hilal Kurban. "Enhancing Oil Recovery With Bottom Water Drainage Completion." Journal of Energy Resources Technology 136, no. 4 (2014). http://dx.doi.org/10.1115/1.4028691.

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Field trials and physical modeling of wells with downhole water sink (DWS) completions have demonstrated controlled water coning and increased oil production rate. However, no field trials were long enough to show DWS potential in improving of oil recovery in comparison with conventional wells. Presented here are theoretical and experimental results from a DWS recovery performance study. The recovery study involved experiments with a physical model and computer simulations. The experimental results reveal that DWS dramatically accelerates the recovery process; a fivefold increase of the oil pr

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15

Ju, Binshan, Xiaofeng Qiu, Shugao Dai, Tailiang Fan, Haiqing Wu, and Xiaodong Wang. "A Study to Prevent Bottom Water From Coning in Heavy-Oil Reservoirs: Design and Simulation Approaches." Journal of Energy Resources Technology 130, no. 3 (2008). http://dx.doi.org/10.1115/1.2955560.

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The coning problems for vertical wells and the ridging problems for horizontal wells are very difficult to solve by conventional methods during oil production from reservoirs with bottom water drives. If oil in a reservoir is too heavy to follow Darcy’s law, the problems may become more complicated for the non-Newtonian properties of heavy oil and its rheology. To solve these problems, an innovative completion design with downhole water sink was presented by dual-completion in oil and water columns with a packer separating the two completions for vertical wells or dual-horizontal wells. The de

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16

Bekbauov, Bakhbergen E., Aidarkhan Kaltayev, Andrew K. Wojtanowicz, and Mikhail Panfilov. "Numerical Modeling of the Effects of Disproportionate Permeability Reduction Water-Shutoff Treatments on Water Coning." Journal of Energy Resources Technology 135, no. 1 (2012). http://dx.doi.org/10.1115/1.4007913.

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In the present paper, we analyze numerically the disproportionate permeability reduction (DPR) water-shutoff (WSO) treatments in oil production well, i.e., the ability to reduce relative permeability (RP) to water more than to oil. The technique consists of bullhead injection of polymer solutions (gelant) into the near-wellbore formation without zone isolation. By assuming the low dissolution of polymer in oil and the low mobility of the gel in porous medium, we reduced the compositional model of the process to a simple two-phase model, with RP and capillary pressure (PC) dependent on the wate

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17

Al-Mudhafar, Watheq J., and David A. Wood. "Development and Simulation of the Gas-Downhole Water Sink-Assisted Gravity Drainage (GDWS-AGD) Process to Reduce Carbon Footprint and Improve Clean Oil Production by Injecting CO2 and Petroleum-Associated Gas." Journal of Cleaner Production, June 2024, 142792. http://dx.doi.org/10.1016/j.jclepro.2024.142792.

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18

Lubis, Gerdha Agreska Lubis Agreska, and Maman Djumantara. "EVALUASI RESERVOIR BATURAJA PADA LAPANGAN FALCON DENGAN MENGGUNAKAN SIMULASI RESERVOIR UNTUK MEMAKSIMALKAN PRODUKSI." PETRO 5, no. 1 (2018). http://dx.doi.org/10.25105/petro.v5i1.1977.

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<div class="WordSection1"><br /><p>Falcon Field begins with the discovery of the GG-1 wells are explored in August 1974. The program DST performed on one zone at Falcon Field in the Baturaja Formation producing 429 BOPD and 0.14 MMCFD. Then in 1978, Falcon Field was developed by constructing three wells on the platform GGA and in 1988 made eight more wells on the platform GGB. Falcon Field is the peak production in 1978 amounted to 5670 BOPD. Currently Falcon Field still in production of 1000 BOPD and 451 MCFPD of four wells. Cumulative production in January 2014 at 10.57 and

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19

Gladstone-Gallagher, Rebecca V., Jason M. Tylianakis, Johanna Yletyinen, et al. "Water Flows Downhill: How Looking “Upstream” Can Help Maintain A Healthy Sea." Frontiers for Young Minds 13 (June 16, 2025). https://doi.org/10.3389/frym.2025.1568483.

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Our planet is in trouble. We are losing plants, animals, and habitats, and the processes that link them are changing. Nature is becoming sick. People have been trying to fix this problem, but the situation keeps getting worse. One problem is people ignore a simple law of nature—ecosystems are connected. For example, when forests are cut down, soil is exposed to rainfall and washed into the sea, where it covers and kills shellfish. We made a computer model to explore what happens when the people making the rules on land are slow to respond to problems in the sea. We found that paying attention

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20

Baldauf, Selina, Yolanda Cantón, and Britta Tietjen. "Biocrusts intensify water redistribution and improve water availability to dryland vegetation: insights from a spatially-explicit ecohydrological model." Frontiers in Microbiology 14 (June 27, 2023). http://dx.doi.org/10.3389/fmicb.2023.1179291.

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Biocrusts are ecosystem engineers in drylands and structure the landscape through their ecohydrological effects. They regulate soil infiltration and evaporation but also surface water redistribution, providing important resources for vascular vegetation. Spatially-explicit ecohydrological models are useful tools to explore such ecohydrological mechanisms, but biocrusts have rarely been included in them. We contribute to closing this gap and assess how biocrusts shape spatio-temporal water fluxes and availability in a dryland landscape and how landscape hydrology is affected by climate-change i

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