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All are playful nicknames for the oil and gas icon known as a pumpjack. To the uninformed, the pumpjack is a thing-a-ma-jig that has something to do with oil, probably "fracking" because that's what drilling rigs do, right? But as an industry-educated and well-informed reader of JPT, you know this is inaccurate. By whatever name you call it, you know that the pumpjack is the visible manifestation of an invisible physics equation, a mechanism buried deep underground that lifts reservoir fluids to the surface. You also know it is one type of artificial lift available in a stable of systems with equally curious and technical names like progressive cavity, plunger, jet, gas lift, and electrical submersible pump (ESP).
- Oceania > Australia > Western Australia > North West Shelf > Carnarvon Basin > Dampier Basin > WA-209-P > Stag Field (0.99)
- Oceania > Australia > Western Australia > North West Shelf > Carnarvon Basin > Dampier Basin > WA-15-L > Stag Field (0.99)
- North America > United States > Texas > Permian Basin > Yeso Formation (0.99)
- (26 more...)
- Reservoir Description and Dynamics > Unconventional and Complex Reservoirs > Shale oil (0.70)
- Reservoir Description and Dynamics > Unconventional and Complex Reservoirs > Shale gas (0.70)
- Health, Safety, Environment & Sustainability > Sustainability/Social Responsibility > Sustainable development (0.69)
- (5 more...)
Producing Shale Oil Through Rod Free Artificial Lift, A Case Study
Chen, Qiang (RIPED, PetroChina Co. Ltd, Beijing, China) | Hao, Zhongxian (RIPED, PetroChina Co. Ltd, Beijing, China) | Huang, Shouzhi (RIPED, PetroChina Co. Ltd, Beijing, China) | Gao, Yang (RIPED, PetroChina Co. Ltd, Beijing, China) | Wei, Songbo (RIPED, PetroChina Co. Ltd, Beijing, China)
Shale oil had attracted worldwide attention due to its vast volume, according to statistics, technical recovery of shale oil worldwide exceeded 250billion ton, mostly located in America, Africa and north Asia. However shale oil was characterized by its high viscosity, deep reservoir location, posing threats to the operator, traditional rod-pump artificial lift was not a good choice due to the friction issue, How to walk out of those challenges were worth thinking, while rod free artificial lift methods had been field proven in the oilfield, its progress would give us some inspirations. In this paper, rod free artificial lift methods including downhole motivated reciprocating pump, centrifugal pump and progressing cavity pump were discussed, some technological highlights such as pulling and running electric cables, host SCADA system and production control algorism had been introduced in detail. Finally the efficacy of rodless artificial lift was analyzed from the perspective of investment
- North America > United States (0.48)
- Asia > China (0.48)
- Reservoir Description and Dynamics > Unconventional and Complex Reservoirs > Shale oil (1.00)
- Production and Well Operations > Artificial Lift Systems > Progressing cavity pumps (1.00)
- Production and Well Operations > Artificial Lift Systems > Beam and related pumping techniques (1.00)
Selecting artificial lift papers for the Tech Focus feature of JPT can be a daunting exercise when technologies and innovations abound, more so post-pandemic, with 157 submitted abstracts covering 2021–2022. In narrowing the offerings to three, the criteria of conformance to guidelines and novelty of information, technical equipment, and application were considered. Industry indicators and interest were also factors. Gas lift remains of high global interest, whether in long horizontal shale oil wells or vertical ones because of the cost to operate lower lifting. Declining production and high gas/oil ratios (GORs) present a challenge for conversion to secondary lift forms.
- Well Drilling > Drilling Operations > Directional drilling (0.59)
- Production and Well Operations > Artificial Lift Systems > Progressing cavity pumps (0.57)
- Reservoir Description and Dynamics > Fluid Characterization > Phase behavior and PVT measurements (0.39)
- Health, Safety, Environment & Sustainability > Sustainability/Social Responsibility > Sustainable development (0.39)
Progressing cavity pumping (PCP) systems derive their name from the unique, positive displacement pump that evolved from the helical gear pump concept first developed by Rene Moineau in the late 1920s.[1] They are increasingly used forartificial lift, and have been adapted to a range of challenging lift situations (e.g., heavy oil, high sand production, gassy wells, directional or horizontal wells). This page provides an introduction to PCP systems. Progressing cavity (PC) pumps initially were used extensively as fluid transfer pumps in a wide range of industrial and manufacturing applications, with some attempts made to use them for the surface transfer of oilfield fluids. However, it was not until after the development of synthetic elastomers and adhesives in the late 1940s that PC pumps could be applied effectively in applications involving petroleum-based fluids.
- Europe (0.30)
- North America > United States > Oklahoma (0.16)
- Information Technology > Knowledge Management (0.41)
- Information Technology > Communications > Collaboration (0.41)
When the pump breaks down and the oil stops flowing, it's mostly likely due to a failed sucker rod. "The statistics are pretty strong. While you would think the rod pump or the progressing cavity pump is the component with the most problems, it is the rod string" that is most often to blame, said Lonnie Dunn, vice president for technology at Lifting Solutions. That's a critical fact for Dunn who works for the biggest maker of what are known as continuous sucker rods. Rather than connecting individual rods into a string long enough to run from the surface to the pump, a single long rod is run into the well like coiled tubing.
- North America > United States > Texas > Permian Basin > Yeso Formation (0.99)
- North America > United States > Texas > Permian Basin > Yates Formation (0.99)
- North America > United States > Texas > Permian Basin > Wolfcamp Formation (0.99)
- (21 more...)
- Production and Well Operations > Production Chemistry, Metallurgy and Biology > Corrosion inhibition and management (including H2S and CO2) (1.00)
- Production and Well Operations > Artificial Lift Systems > Progressing cavity pumps (1.00)
- Production and Well Operations > Artificial Lift Systems > Beam and related pumping techniques (1.00)
- (2 more...)
Abstract All-metal progressing cavity pumps (AMPCPs) are frequently used in oil and gas applications to produce high-temperature fluids to surface. Unfortunately, due to the interaction of the metal rotor on the metal stator, AMPCPs can exhibit accelerated wear during operation that results in decreasing pump volumetric efficiency over the pump's life. While decreasing pump volumetric efficiency can be a result of pump wear, it can also be due to changes in downhole operating conditions, such as increasing pump differential pressure or decreasing pump speed. For this reason, when evaluating the state or condition of an AMPCP, the use of pump efficiency alone may be a misleading or imperfect indicator. In this work, a proposed condition indicator is presented that estimates the wear experienced by an AMPCP at any given time in operation and takes into consideration the potential effects of downhole operating conditions. The proposed condition indicator can also be extrapolated into the future and used to estimate the potential remaining useful life (RUL) of an AMPCP by considering the current pump condition and the estimated future downhole operating conditions. An example is provided to demonstrate how to calculate the condition indicator of an AMPCP and several case studies are presented that illustrate the effects of varying downhole operating conditions and various workover activities, such as rotor re-landing and rotor swaps, on the condition of an AMPCP and its potential RUL. The proposed AMPCP condition indicator enables operators to estimate the condition of an AMPCP over time, which allows for better pump selection based on the anticipated operating decisions, better operating practices to maximize system performance, as well as improved planning of upcoming workovers based on more accurate AMPCP RUL estimates.
A brownfield is an oilfield whose production has matured to a plateau, or progressed to a declining stage. In brownfields, artificial lift methods are employed to add energy to the fluids inside a well, aiding their movement to the surface. This article overviews four popular artificial lift methods and discusses general screening criteria for selecting which method is the best for a specific well. Improved oil recovery (IOR) methods are implemented to maintain production from brownfields (Darvish Sarvestani and Hadipour, 2019), prolonging their life cycles and maximizing oil recovery. Artificial lift (AL) refers to human-controlled means of increasing a well's productivity, boosting its flow rate, while lowering the flowing bottomhole pressure (FBHP).
Abstract Multiphase fluids are mixtures of oil, water, and gas. Roughly six out of every ten wells contain multiphase fluids with variations in the fluid makeup, rheology, and viscosity. They may also include small amounts of sand, paraffin, hydrates, and drilling cuttings. This necessitates local separation at the well site, which can require a significant footprint of process equipment infrastructure at or near each well site. Ever since oil production began, produced fluids have been transferred from the well to the storage or processing facility using reservoir pressures. This means the bottom hole pressures needed to be sufficient to not only get the fluid to the surface but also move it some distance on the surface through flow lines. In cases where reservoirs are either low energy or are characterized by rapid pressure depletion curves as is common in a number of unconventional plays, this can be problematic. In wells that are artificially produced with a down hole pump or other artificial lift equipment the pump must have sufficient pressure capability to bring the fluids to the surface and then move them some distance on the surface through a flow line. Additional pressure may also be required for the separation equipment at the end of the flow line.
- Reservoir Description and Dynamics (1.00)
- Production and Well Operations > Well & Reservoir Surveillance and Monitoring (1.00)
- Production and Well Operations > Artificial Lift Systems > Progressing cavity pumps (1.00)
- Production and Well Operations > Artificial Lift Systems > Hydraulic and jet pumps (1.00)
Wear Failure Mechanism and Main Influencing Factors of All-Metal Progressing Cavity Pump AMPCP
Gang, Cao (RIPED, CNPC) | Jianing, Zhang (University of Science and Technology of China) | He, Liu (RIPED, CNPC) | Chuang, Liu (Nanjing Technology University) | Yang, Gao (RIPED, CNPC) | Siwei, Meng (RIPED, CNPC) | Jian, Su (RIPED, CNPC)
Abstract All metal progressing cavity pump(AMPCP) has excellent high temperature resistance and corrosion resistance and shows good adaptability in heavy oil production. With the development of pump processing techniques and manufacturing, the performance and reliability of AMPCP have been improved rapidly. However, the wear failure issue of the AMPCP s still considerably severe, leading to high total-life-cycle cost and limiting the commercial application of the products. This paper discussed the mechanism of the wear behavior of AMPCP through numerical simulation and experimental analysis. The main influencing factors of AMPCP wear failure are analyzed as well, which plays an essential guiding role in the pump optimization design. This paper presents the numerical simulation of the wear behavior of AMPCP under different clearances, structural parameters, and operating speeds and discusses the influence of these parameters on the friction torque and wear behavior. Studies show a series of valuable results: 1) The clearance value between rotor and stator has the most significant impact on the amount of wear. With the change of the pump clearance, the change in the contact area and the amount of wear between the stator and the rotor performs a nonlinear relationship. 2) Although eccentricity changes the inertia effect caused by the eccentric movement of the rotor to a certain extent, it has little effect on the overall friction and wear. 3) The amount of wear and the rate of wear are linearly related to the speed, i.e. the higher the speed, the faster the wear increases. However, there is little difference in the amount of wear at different speeds for high viscosity lifted fluids. In this paper, the wear analysis model of AMPCP is established for the first time. The evolution of the wear bands between the stator and rotor of the AMPCP is demonstrated by a three-dimensional explicit dynamic model, and the influence of different factors on the wear of AMPCP is discussed in detail. This paper has laid a necessary theoretical foundation for the optimization design of AMPCP. It also applies essential guidance for further improving the operating performance of AMPCP.
- Asia (1.00)
- North America > United States > Texas (0.94)
- Research Report > New Finding (0.66)
- Research Report > Experimental Study (0.48)
- North America > United States > Texas > Permian Basin > Yeso Formation (0.99)
- North America > United States > Texas > Permian Basin > Yates Formation (0.99)
- North America > United States > Texas > Permian Basin > Wolfcamp Formation (0.99)
- (22 more...)
A New Analytical Approach To Calculate a Slippage inside a Progressing Cavity Pump with a Metallic Stator Using a Middle Streamline and a Structural Periodicity
Om, Il Lyong (Kim Chaek University of Technology) | Han, Un Chol (Kim Chaek University of Technology) | Ryo, Song Il (Kim Chaek University of Technology) | Kim, Chun Yong (Kim Chaek University of Technology) | Sol, Yong Nam (Kim Chaek University of Technology)
Summary Simplified and 3D models have been studied to predict the performance of progressing cavity pumps (PCPs). Simplified models were mainly made for metallic stator PCP performance. Their purpose was to represent the relationship between pump flow rate and differential pressure. Previous studies proposed to solve the system of mass conservation equations. In these studies, the geometry of the gap area was not clearly represented by neglecting the curvatures of stator and rotor. In addition, only frictional loss was considered, but local loss by gradual contraction or expansion of the gap area was not considered. In this study, we present a new analytical approach considering curvature and local loss. The depth of the gap area and local loss could be calculated analytically by a middle streamline and a curvature. On the basis of periodicity of distribution of cavities, simplified calculation for a slippage was possible without a system of mass conservation equations. Therefore, this model represents clearer geometry and a more simplified approach. The results show that this model shortens the calculating time and facilitates programing; in addition, the model validation is good in matching with experimental data.
- South America (1.00)
- Europe (1.00)
- North America > United States > Texas (0.46)