Relevant bibliographies by topics / Positive displacement motors PDM

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Positive displacement motors PDM'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Positive displacement motors PDM"

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Samuel, G. Robello, and Stefan Miska. "Performance of Positive Displacement Motor (PDM) Operating On Air." Journal of Energy Resources Technology 125, no. 2 (June 1, 2003): 119–25. http://dx.doi.org/10.1115/1.1575776.

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Recent increase in application of horizontal wells and in particular underbalanced drilling, has triggered the necessity of a powerful pneumatic downhole motor. To enhance the technology and make the system effective, a mathematical model is required to identify the opportunities for the modification of power section design. It is well known that the performance of positive displacement motor operating on compressible fluid drops down drastically as compared to the operation under incompressible fluids. The frequent motor replacement during the operation incrementally increases the operating cost despite deriving potential benefits from underbalanced drilling.
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Zhu, Xiao Hua, Yuan Gao, Shao Hu Liu, and Hua Tong. "The Feasibility Analysis of the Double-Curved Positive Displacement Motor (PDM) Into Casing." Advanced Materials Research 143-144 (October 2010): 1102–6. http://dx.doi.org/10.4028/www.scientific.net/amr.143-144.1102.

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To study the feasibility of double-curved PDM into casing, the mechanical model of Φ172 mm double-curved PDM into Φ244 mm straight casing is established. The effect of different structure corners on the feasibility is analyzed for the PDM into casing; and the law of stress distribution is discussed in the paper. The simulation results show that the Φ172 mm double-curved PDM can enter Φ244 mm straight casing favorably by self-gravity when the first structure bend is equal to 1° and the second structure bend is equal to or less than 1.5°. When the second structure corner is equal to or more than 1.75°, PDM needs extra to enter into casing. Within the bounds of common structure corners,when the PDM into casing, the maximum stress value of the double-curved PDM is much lower than yield strength.
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Delpassand, M. S. "Stator Life of a Positive Displacement Downhole Drilling Motor." Journal of Energy Resources Technology 121, no. 2 (June 1, 1999): 110–16. http://dx.doi.org/10.1115/1.2795065.

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The power section of a positive displacement drill motor (PDM) consists of a steel rotor and a tube with a molded elastomeric lining (stator). Power section failures are typically due to the failure of the stator elastomer. Stator life depends on many factors such as design, materials of construction, and downhole operating conditions. This paper focuses on the stator failure mechanisms and factors affecting stator life. An analytical method for predicting the effect of various design and operating parameters on the strain state and heat build-up within elastomers is discussed. The effect of parameters such as rotor/stator design, downhole temperature, drilling fluid, stator elastomer properties, motor speed, and motor differential pressure on the stator life is discussed. Nonlinear finite element analysis is used to perform thermal and structural analysis on the stator elastomer. Data from laboratory accelerated life tests on power section stators is presented to demonstrate the effect of operating conditions on stator life.
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Sun, Weiguang, Xiaomin Liu, Shibin Li, Bing Guan, Jinsong Bai, and Zhaoyi Liu. "An improved 3.5° single-bend positive displacement mud motor and its parameter optimization for deep short-radius open-hole sidetracking." Journal of Petroleum Exploration and Production Technology 11, no. 8 (July 29, 2021): 3349–59. http://dx.doi.org/10.1007/s13202-021-01245-8.

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AbstractIn order to improve the sidetracking efficiency for the recovery of old wells in the middle and later stage of oilfield, an improved 3.5° single-bend positive displacement mud motor (PDM) is designed. This novel single-bend PDM first uses the structure of 3.5° large angle PDM + cushion block, which can meet the sidetracking requirements of high build-up rate and short directional section in large curvature short-radius sidetracking wells and can significantly improve the build-up ability. Furthermore, based on the mechanical analysis and finite element numerical simulation, its parameter optimization is carried out. The optimal main parameters are determined as follows: the structural bending angle is 3.5°, the outer diameter is 95 mm, the height of the cushion block is 14 mm, the distance between the cushion block and the bending point is 120 mm, the minimum curvature radius is 35.50 m, and the weight-on-bit (WOB) should be less than 30kN. The initial section build-up rate of directional sidetracking can be increased up to 52.67°/30 m ~ 53.29°/30 m. The research results have been applied in Tahe oilfield. It proves that 3.5° single-bend PDM can sidetrack successfully at one time and increase deviation, and the overall angle change rate of bottom hole can reach 45.00°/30 m, which can meet the requirements of short-radius sidetracking with curvature radius of 40 m. The successful application of open-hole sidetracking technology with 3.5° single-bend PDM is of great significance to the production increase and efficiency improvement of old oilfields.
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Liagov, Ilia, Alexander Liagov, and Anastasiia Liagova. "Optimization of the Configuration of the Power Sections of Special Small-Sized Positive Displacement Motors for Deep-Penetrating Perforation Using the Technical System “Perfobore”." Applied Sciences 11, no. 11 (May 28, 2021): 4977. http://dx.doi.org/10.3390/app11114977.

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Innovative technologies for the secondary drilling of productive reservoirs, based on the multihole drilling deeply remoted from the wellbore and with controlled trajectories, to overcome the contamination of the pay zone, and with the ability to carry out various geological and technological wellworks many times over, can significantly increase the efficiency of the development of old and marginal wells. To implement such tasks, it is necessary to use special technological drilling equipment, one such technical system (TS) is the Perfobore system, which uses a modular construction. The methodology allows to choose an optimal variant for the power sections with a high-torque, small-sized positive displacement motor PDM, previously developed by specialists at the Perfobore company. This made it possible to design universal sectional motors with diameters of 43 to 54 mm with improved characteristics compared to serial PDMs. The production of prototypes of multi-section PDMs and their successful bench and then field tests (FT), from 2018 to 2020, in the Uralopovolzhskaya and West Siberian oil and gas provinces, as part of the TS Perfobore, proved the correctness of the chosen technical strategy.
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Leonov, E. G., V. S. Kobets, and V. I. Molodilo. "NEW FORMULAS FOR RECALCULATION POSITIVE DISPLACEMENT MOTOR (PDM) BASIC INDICATORS OF BENCH TESTS INTO WORKING ONES." Construction of Oil and Gas Wells on Land and Sea, no. 5 (2019): 30–35. http://dx.doi.org/10.30713/0130-3872-2019-5-30-35.

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ZHAO, Guanghui, and Guipeng LIAO. "Elastic-plastic fracture analysis of external thread of drive shaft shell of a positive displacement motor." Mechanics 26, no. 5 (October 20, 2020): 375–82. http://dx.doi.org/10.5755/j01.mech.26.5.24671.

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For a positive displacement motor (PDM), the threaded joint connecting drive shaft shell (DSS) and universal shaft shell that is close to the bit is inclined to fracture. In this paper, elastic-plastic fracture performance of the threaded connection is simulated under both make-up torque and bending moment. Firstly, an FE model, which includes a cracked external thread of the DSS and an engaging internal thread of the universal shaft shell, is established and validated. Secondly, influences of both plastic deformation and the helix angle on fracture properties of the cracked thread are evaluated quantitatively. Meanwhile interactions between two cracks are also discussed. Finally, under the two kinds of loading conditions, i.e. loaded by pre-load only and loaded by both pre-load and bending moment, explicit relationships between characteristic J-integrals and the crack depth are obtained for the DSS.
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Han, Guang Zhi, and Chi Ai. "Applications of Mud Pulse MWD/LWD System in Bakken Formation, North Dakota, USA." Applied Mechanics and Materials 415 (September 2013): 672–76. http://dx.doi.org/10.4028/www.scientific.net/amm.415.672.

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10,000 ft horizontal drilling and hydraulic fracturing with 24 to 36 stages are prominent in Bakken petroleum system with great success. Although advanced automated drilling system with cutting edge comprehensive logging units are available from service providers to obtain various data assisting comprehensive real-time analysis, conventional positive displacement motor (PDM) with mud-pulse (MP) measurement while drilling (MWD)/logging while drilling (LWD) system is still widely applied in this area to steer and navigate the well bore in pay zone with cost-effectiveness and efficiency. In this paper, several field cases for MP MWD/LWD systems will be discussed and lessons will be summarized to help optimize rate of penetration (ROP), reduce non-productive rig time, and improve operators drilling practices.
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Nguyen, T. C., E. Al-Safran, and V. Nguyen. "Theoretical modeling of Positive Displacement Motors performance." Journal of Petroleum Science and Engineering 166 (July 2018): 188–97. http://dx.doi.org/10.1016/j.petrol.2018.03.049.

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Samuel, G. Robello. "Analysis of Energy Harvesting Positive Displacement Motor." Journal of Energy Resources Technology 129, no. 4 (April 25, 2007): 360–63. http://dx.doi.org/10.1115/1.2794773.

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Drilling operations in deep and ultradeep water are increasing around the world. The development of these substantial prospects provides many challenges and requires the integration of knowledge with prudent designs at different stages of the well development. Also, more wells are drilled in rotary steerable mode and other instrumented bottom-hole assemblies. All of these tools need power, which is stored in batteries. Because the downhole power supply is limited for these tools, an alternate mode of energy supply is needed so that these tools can remain downhole for long hours. This paper examines a new energy source extraction method using the hydraulic energy obtained from the circulated drilling fluid when downhole motors are used.
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Dissertations / Theses on the topic "Positive displacement motors PDM"

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Gibilterra, Valentina. "Studio di fattibilità per l'applicazione dei "positive displacement motors" in ambienti HT-HP." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8418/.

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Questo studio concerne uno studio di fattibilità per l'applicazione dei "positive displacement motors" in ambienti ambienti fortemente critici, soggetti ad alta pressione e alta temperatura. Tali motori sono utilizzati nell'industria Oil & Gas per la perforazione di pozzi petroliferi. L’analisi è stata portata a termine attraverso definizione dell’intervallo di temperatura per cui le performance degli strumenti in commercio presenta il maggior numero di failures, compreso tra i 175°C e i 225°C , e per il quale si vuole riuscire a limitare i rischi connessi e le criticità associate, garantendo così il raggiungimento dei target con un maggior grado di affidabilità e disponibilità del PDM utilizzato. Analizzando le sollecitazioni agenti sul motore durante le fasi di utilizzo, è stato possibile rilevare le principali cause di rottura e malfunzionamento che, nella maggior parte dei casi, possono essere attribuite al rigonfiamento e alla degradazione del materiale elastomerico che costituisce lo statore della power section. Investigando in merito alle differenze e alle proprietà di resistenza di numerosi materiali elastomerici a diversi range di temperatura, sono stati evidenziati dei margini di ottimizzazione in particolare relativi alla potenziale riduzione e totale sostituzione della superficie elastomerica con materiale metallico. Ciò ha fatto si che fosse necessario un approfondimento sulle caratteristiche degli acciai e delle leghe metalliche, in termini di resistenza a corrosione, costo del materiale, resistenza meccanica e della capacità di mantenere elevate proprietà meccaniche con l’aumento della temperatura, al fine di individuare i migliori “candidati” per sostituire interamente il materiale elastomerico dello statore in materiale metallico e risolvere così il problema dell’applicazione dei PDM in ambienti HT-HP.
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Dall'Acqua, Daniel. "Thermo-mechanical modelling of progressing cavity pumps and positive displacement motors." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0003/MQ59796.pdf.

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Books on the topic "Positive displacement motors PDM"

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Tiraspolsky, W. Hydraulic downhole drilling motors: Turbodrills and positive displacement rotary motors. Houston: Gulf Pub. Co., 1985.

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Book chapters on the topic "Positive displacement motors PDM"

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Inglis, T. A. "Positive Displacement Motors." In Directional Drilling, 63–77. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-017-1270-5_5.

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Neerken, Richard. "Positive Displacement Compressors, Pumps, and Motors." In Handbook of Fluid Dynamics and Fluid Machinery, 2187–217. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470172650.ch26.

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Elgamil, Mohamed A., and Saad A. Kassem. "Cardiac action pumps and motors." In Positive Displacement Machines, 37–61. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-816998-8.00002-9.

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Dall' Acqua, D., A. W. Lipsett, M. G. Faulkner, and T. M. V. Kaiser. "An efficient thermomechanical modeling strategy for progressing cavity pumps and positive displacement motors." In Computational Fluid and Solid Mechanics, 616–19. Elsevier, 2001. http://dx.doi.org/10.1016/b978-008043944-0/50724-1.

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Conference papers on the topic "Positive displacement motors PDM"

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Li, Fei, Rohan V. Neelgund, David L. Smith, and Wesley Blackman. "Drilling Dynamics Measurements on Positive Displacement Motors PDM Enhance Performances and Reliability." In International Petroleum Technology Conference. International Petroleum Technology Conference, 2019. http://dx.doi.org/10.2523/iptc-19498-ms.

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Li, Fei, Rohan V. Neelgund, David L. Smith, and Wesley Blackman. "Drilling Dynamics Measurements on Positive Displacement Motors PDM Enhance Performances and Reliability." In International Petroleum Technology Conference. International Petroleum Technology Conference, 2019. http://dx.doi.org/10.2523/19498-ms.

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Li, J., R. Tudor, L. Ginzburg, G. Robello, H. Xu, and C. Grigor. "Evaluation and Prediction of the Performance of Positive Displacement Motor (PDM)." In SPE International Conference on Horizontal Well Technology. Society of Petroleum Engineers, 1998. http://dx.doi.org/10.2118/50408-ms.

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Alvarez, Alfredo A., and Jorge Boscan. "Predicting Rotor-Stator Fit in Positive Displacement Motors PDMs." In SPE/IADC Drilling Conference and Exhibition. Society of Petroleum Engineers, 2017. http://dx.doi.org/10.2118/184688-ms.

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Samuel, G. Robello, and Stefan Miska. "Optimization of Drilling Parameters with the Performance of Multilobe Positive Displacement Motor (PDM)." In IADC/SPE Asia Pacific Drilling Technology. Society of Petroleum Engineers, 1998. http://dx.doi.org/10.2118/47791-ms.

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Samuel, G. Robello, Stefan Miska, and Len Volk. "Analytical Study of the Performance of Positive Displacement Motor (PDM): Modeling for Incompressible Fluid." In Latin American and Caribbean Petroleum Engineering Conference. Society of Petroleum Engineers, 1997. http://dx.doi.org/10.2118/39026-ms.

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Samuel, Robello, Fedor Baldenko, and Dmitry Baldenko. "Mud Motor PDM Dynamics: An Analytical Model." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206064-ms.

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Abstract In a fast drilling environment, suchas shale drilling, refining advanced technologies for preventing downhole toolfailures is paramount. Challenges are still very much associated with complex bottom-hole assemblies and the vibration of the drill string when used with a downhole mud motor. The mud positive displacement motor with various lobe configurations and designs becomes an additional excitation source of vibration. Further, it affects the transient behavior of the performance mud motor. Unbalanced force exists because the center ofmass of the motor rotor does not coincide with the axis of rotation.Further, the vector of full acceleration of the center of the rotor can be decomposed into two perpendicular projections—tangent and normal—which aretaken into account and integrated intothe full drill string forced frequency modelas force and displacement at the motorlocation. The paper includes two models, first one to predict the critical speeds and the second one to see the transient behavior of the downhole parameters when the mud motor is used.The model also considers the effect of the stringspeed. The unbalanced force is more pronounced at the lower pair or lobe configuration as compared to the higher pairlobe configuration because of the larger eccentricity. The unbalance is modeled in terms of an equivalent mass of therotor with the eccentricity of the rotor. Also, the analysis provides an estimation of relative bending stresses, shear forces, lateral displacements and transient bit rpm, bit torque, and weightone bit for the assembly used. Based onthe study, severe vibrations causing potentially damaging operating conditionswhen transient downhole forcing parametersare used for the vibration model.It has been found that when a mud motor isused using static forcing parameters may not provide the conservative estimation of the critical speeds as opposed totransient parameters. This is because coupled oscillations fundamentally can create new dynamic phenomena, which cannot be predicted from the characteristics of isolated elements of the drilling system.
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Lamine, E., A. Leseultre, D. Roberts, C. Walker, and A. Jonsson. "Using downhole dynamics to better understand the drilling process with positive displacement motors and PDC bits." In SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers, 1998. http://dx.doi.org/10.2118/49207-ms.

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McCalip, Jonathan, Bob Bohmer, Dustin Daechsel, and Andrea Zovko. "Rotary Fatigue Testing Device for Determining Drilling Fluid Compatibility in A Pdm Stator." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206062-ms.

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Abstract The purpose of this study was to evolve the understanding between mud motor power section reliability and oil-based drilling fluid chemistry, using novel laboratory data recorded from a proprietary test apparatus and instrumentation. The underlying objective is driven by operator's desire to maximize drilling performance by extending the operating envelope of the PDM/drilling fluid system, beyond what is possible using legacy ASTM immersion testing. This paper describes a new test method and machine, intended to complement currently existing test methodologies, that incorporates multiple interplaying downhole conditions. Twelve fluids were analyzed using the novel test machine and the results compared to data obtained from conventional ASTM immersion testing; The fluids varied with respect to base oil type, as well as concentrations of emulsifier, and wetting agent. The goal of testing was to determine if positive displacement motor (PDMs) elastomer failure mechanisms (abrasion, cracking, chunking) could be replicated in a controlled environment, and if doing so could improve the data and understanding of its lifespan in a PDM. The result of testing provided evidence of two and three body abrasion, compression set, chunking, and chemical swell. It was found that concentrations of additives, as well as base oil type significantly affect runtime in the novel test machine, even if the differences in conventional testing were inconclusive. The novel test machine demonstrated that concentrations of key additives, as well as base oil type significantly affect elastomer runtime, even if conventional testing showed inconclusive results.
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Chen, Kaidong, Xiaoyu Zhong, Zaibin Cheng, Yingjie Lu, and Qiuhai Lu. "Identification of a Laboratory Slide Drilling Experiment: The Relationship Between the Top Drive Rotation and the Tool-Face Angle." In ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/detc2019-97322.

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Abstract Slide drilling refers to the technology of creating a predetermined non-vertical wellbore with a bent housing positive displacement motor (PDM). It is widely adopted in the area of directional drilling. In practical drilling operation, the top drive on the ground introduces an angular rotation to the top of the drill string, and the PDM at the bottom of the drill string rotates accordingly. When the bend is pointed to the desired direction, the adjustment of the PDM stops and the drill string slides without rotation to make a deviation. Up till now, the relationship between the top drive displacement and the direction of the bend, namely the tool-face angle (−180° ∼ 180°), is still unclear. In this research, an indoor slide drilling experiment is carried out, and the nonlinear relationship between the top drive input and the tool-face output is recorded. The hysteretic phenomenon observed is consistent with the in-field experience, and a single-input-single-output (SISO) system is established to describe this relationship. The Volterra/ Wiener neural network (VWNN) is introduced to identify this system, and provides a one-step prediction of the tool-face output. The predicted tool-face output is verified by the experiment data.
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