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Search Petrowiki: Plunger lift installation AND maintenance
...Plunger lift installation and ...maintenance Plunger lift is commonly used for production of low volume, high gas-oil ratio (GOR) or high gas-liquid ratio (G...LR) wells. A plunger lift candidate must meet GLR and pressure requirements, but the method of ...
Plunger lift is commonly used for production of low volume, high gas-oil ratio (GOR) or high gas-liquid ratio (GLR) wells. A plunger lift candidate must meet GLR and pressure requirements, but the method of installation and the mechanical setup of the well also are extremely important. Installation is a frequent cause of system failure.[1] This page focuses on the installation and appropriate maintenance of plunger lift equipment. For reference, Figure 1 is a full wellbore schematic of major plunger-lift components, andFigure 1 is a plunger-lift troubleshooting guide. Numbers represent rank in order of most likely solution.[1] There are many plunger-lift manufacturers and equipment options, so quality and design vary. Purchasers have the ultimate responsibility for investigating the manufacturing process. Manufacturers who use International Organization for Standardization (ISO) 9000/9001 standards or equivalents help to ensure that customers will receive a quality product.
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...Plunger lift Plunger lift has become a widely accepted and economical artificial ...lift alternative, especially in high-gas/liquid-ratio (GLR) gas and oil wells (Fig. 1 ). ...Plunger lift uses a free piston that travels up and down in the well's tubing string. It minimizes liquid fallba...
Plunger lift has become a widely accepted and economical artificial lift alternative, especially in high-gas/liquid-ratio (GLR) gas and oil wells (Figure 1). Plunger lift uses a free piston that travels up and down in the well's tubing string. It minimizes liquid fallback and uses the well's energy more efficiently than does slug or bubble flow. As with other artificial lift methods, the purpose of plunger lift is to remove liquids from the wellbore so that the well can be produced at the lowest bottomhole pressures. Figure 1--Plunger installed in Canada. In recent years, the advent of microprocessors and electronic controllers,[1][2] [3][4] the studies detailing the importance of plunger seal and velocity,[5] and an increased focus on gas production have led to a much wider use and broader application of plunger lift. Microprocessors and electronic controllers have increased the reliability of plunger lift.[1][2][4]
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...Plunger lift applications ...Plunger lift is used for recovery, primarily in high gas-oil ratio (GOR) wells, in many countries. Applications ...t not necessarily limits of operation.[1] [2] [3] [4] [5] Contents * 1 Introduction * 2 Typical plunger installation * 2.1 Tubing with open annulus * 3 Packers and slimhole completions * 4 Deviated wells * 5 Coil...
The most common plunger lift applications are for liquid removal in gas wells, but plungers also are used successfully for oil production in high gas liquid ratio (GLR) oil wells, in conjunction withintermittent gas lift operations,[5] [6] [7] [8] and to control paraffin and hydrates. In fact, plungers have been installed on wells for the sole purpose ofpreventing paraffin or hydrate buildup, thereby reducingparaffin scraping or methanol injection.[1]
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...PEH:Plunger Lift Publication Information Petroleum Engineering Handbook Larry W. Lake, Editor-in-Chief Volu...ngineering Joe Dunn Clegg, Editor Copyright 2006, Society of Petroleum Engineers Chapter 16 – Plunger Lift Scott D. Listiak SPE, EOG Resources Inc. Daniel H. Phillips SPE, ConocoPhillips Co. Pgs. 839-88...6 ISBN 978-1-55563-118-5 Get permission for reuse Introduction Plunger lift has become a widely accepted and economical artificial-...
Introduction Plunger lift has become a widely accepted and economical artificial-lift alternative, especially in high-gas/liquid-ratio (GLR) gas and oil wells (Figure 1.1). Plunger lift uses a free piston that travels up and down in the well's tubing string. It minimizes liquid fallback and uses the well's energy more efficiently than does slug or bubble flow. As with other artificial-lift methods, the purpose of plunger lift is to remove liquids from the wellbore so that the well can be produced at the lowest bottomhole pressures. Figure 1.1--Plunger installed in Canada. Whether in a gas well, oil well, or gas lift well, the mechanics of a plunger-lift system are the same. The plunger, a length of steel, is dropped through the tubing to the bottom of the well and allowed to travel back to the surface. It provides a piston-like interface between liquids and gas in the wellbore and prevents liquid fallback--a part of the liquid load that effectively is lost because it is left behind.
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...Plunger lift design and models ...Plunger lift systems can be evaluated using rules of thumb in conjunction with historic well production, or with... a mathematical plunger model. Because ...
Plunger lift systems can be evaluated using rules of thumb in conjunction with historic well production, or with a mathematical plunger model. Because plunger lift systems typically are inexpensive and easy to install and test, most are evaluated by rules of thumb. Plunger lift operation requires available gas to provide the lifting force, in sufficient quantity per barrel of liquid for a given well depth. The minimum GLR requirement is approximately 400 scf/bbl per 1,000 ft of well depth and is based on the energy stored in a compressed volume of 400 scf of gas expanding under the hydrostatic head of 1 bbl of liquid.[1] One drawback to this rule of thumb is that it does not consider line pressures.
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...Category:3.1.5 Plunger lift . Pages in category "3.1.5 ...Plunger lift" The following 8 pages are in this category, out of 8 total. O * Operation of sucker-rod ...lift systems P * ...
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...Plunger design considerations and selection ...Plunger lift is used primarily in low rate, high gas-oil ratio (GOR) wells. This page focuses on the features de...sired in key equipment required to operate a plunger lift operation. Contents * 1 ...
Plunger lift is used primarily in low rate, high gas-oil ratio (GOR) wells. This page focuses on the features desired in key equipment required to operate a plunger lift operation. Desirable features in a plunger include efficient sealing, reliability, durability, and the ability to descend quickly.[1][2] Rarely does a plunger exhibit all these characteristics, though. Usually a plunger that excels at one aspect sacrifices others. A wide variety of plungers is available to accommodate differences in well performance and operating conditions. The plunger seal is the interface between the tubing and the outside of the plunger, and probably is the most important plunger design element. Most plungers do not have a perfect seal; indeed, turbulence from a small amount of gas slippage around the plunger is necessary to keep liquids above and gas below the plunger. A more efficient seal limits slippage and allows the plunger to travel more slowly, which reduces the energy and pressure required to lift the plunger and liquid load. Less efficient seals allow excessive slippage, and so increase the energy and pressure required to operate the plunger.[2] The velocity at which the plunger travels up the tubing also affects plunger efficiency[2][3][4] (Figure 1). Very low velocities increase gas slippage and lead to inefficient operation and possible plunger stall.
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...Gas lift Gas ...lift is a method of artificial ...lift that uses an external source of high-pressure gas for supplementing formation gas to ...
Gas lift is a method of artificial lift that uses an external source of high-pressure gas for supplementing formation gas to lift the well fluids. The principle of gas lift is that gas injected into the tubing reduces the density of the fluids in the tubing, and the bubbles have a "scrubbing" action on the liquids. Both factors act to lower the flowing bottomhole pressure (BHP) at the bottom of the tubing. There are two basic types of gas lift in use today--continuous and intermittent flow. This page briefly describes each method and its advantages and disadvantages.
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...PEH:Artificial Lift Systems Publication Information Petroleum Engineering Handbook Larry W. Lake, Editor-in-Chie... Joe Dunn Clegg, Editor Copyright 2006, Society of Petroleum Engineers Chapter 10 – Artificial Lift Selection James F. Lea, U. of Oklahoma Pgs. 411-455 ISBN 978-1-55563-118-5 Get permission for... reuse Introduction Artificial lift is a method used to lower the producing bottomhole pressure (BHP) on the formation to obtain a high...
For a low-pressure well with solids and/or heavy oil at a depth of less than approximately 6,000 ft and if the well temperature is not high (75 to 150 F typical, approximately 250 F or higher maximum), a PCP should be evaluated. Even if problems do not exist, a PCP might be a good choice to take advantage of its good power efficiency. If the application is offshore, or if pulling the well is very expensive and the well is most likely deviated, ESPCP should be considered so that rod/tubing wear is not excessive. There is an ESPCP option that allows wire lining out a failed pump from the well while leaving the seal section, gearbox, motor, and cable installed for continued use. Hydraulic Pumping There are two primary kinds of hydraulic pumps: jet pumps and reciprocating positive-displacement pumps.Figure 1.7 shows a jet pump arrangement. For jet pumps, high-pressure power fluid is directed down the tubing to the nozzle where the pressure energy is converted to velocity head (kinetic energy).
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...PEH:Sucker-Rod Lift Publication Information Petroleum Engineering Handbook Larry W. Lake, Editor-in-Chief Volu... Joe Dunn Clegg, Editor Copyright 2006, Society of Petroleum Engineers Chapter 11 – Sucker-Rod Lift Norman W. Hein Jr., ConocoPhillips - Retired; now with Oil & Gas Optimization Specialists, Ltd. ... Pump Unseating * 4.7 To Taper or Not To Taper a Rod String * 4.8 Rod Couplings * 4.9 Sucker-Rod Maintenance * 4.10 String Replacement * 5 Miscellaneous Subsurface Equipment * 5.1 Tubing * 5.2 Tubing-Anch...
This chapter discusses the specific artificial-lift technique known as beam pumping, or the sucker-rod-lift method. Many books, technical articles, and industry standards have been published on the sucker-rod lift method and related technology.[1][2][3][4][5][6][7] This chapter is a complete revision of previous editions of thePetroleum Engineering Handbook,[6] but it combines the prior three relevant chapters that covered downhole rod pumps and sucker rods, along with pumping units and prime movers. Additionally, the other components of a sucker-rod pumping installation are discussed, including applicable engineering and operating information. The complete operating system should be understood and addressed to properly design, install, and operate this or any other type of artificial-lift system. Thus, this chapter uses the Gipson and Swaim "Beam Pump Design Chain" as a foundation and builds on this design philosophy by using relevant, published technology and the latest industry practices.[5][6][7]
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