What is the function of the side pocket mandrel?
These mandrels enable rapid retrieval and replacement of the gas lift valves without having to pull the tubing, making them essential in wells with highly variable production or where tubing retrieval would compromise well economics.
What is a mandrel in drilling?
1. n. [Well Completions] A bar, shaft or spindle around which other components are arranged or assembled.
What is a gas lift mandrel?
1. n. [Well Completions] A gas-lift system component that is assembled with the production tubing string to provide a means of locating gas-lift valves. The position or depth of the gas lift valves is crucial to the efficient operation of the entire system.
How do gas lift valves work?
A gas-lift valve is a device installed on (or in) a gas-lift mandrel, which in turn is put on the production tubing of a gas-lift well. Tubing and casing pressures cause the valve to open and close, thus allowing gas to be injected into the fluid in the tubing to cause the fluid to rise to the surface.
What is a side pocket mandrel?
1. n. [Well Completions] A completion component that is used to house gas-lift valves and similar devices that require communication with the annulus.
Why is mandrel used?
mandrel, cylinder, usually steel, used to support a partly machined workpiece while it is being finished, or as a core around which parts may be bent or other material forged or molded.
What is the difference between gas lift and gas injection?
Gas Lift and gas injection are both used to increase flow and production from a reservoir. One main difference between the two is that the gas injection goes into the reservoir, and the gas lift goes into the well bore and to the surface.
What is gas lift optimization?
The objective of gas-lift optimization is to allocate the available compressed gas to each well of the platform such that crude oil production is maximized from the group of wells. A wrong allocation of gas may lead to the de-optimization of those wells resulting in lesser production of fluid.
What are the disadvantages of gas lift method?
Gas lift has the following disadvantages.
- Relatively high backpressure may seriously restrict production in continuous gas lift.
- Gas lift is relatively inefficient, often resulting in large capital investments and high energy-operating costs.
- Adequate gas supply is needed throughout life of project.
Why do we prefer gas lift in gassy well?
Some common advantages and disadvantages of gas lift are: Excellent flexibility in injection/production rate. Excellent gas handling (obvious applicability for gassy wells) Excellent sand and solids handling.
What are the side pocket mandrels used for?
Side pocket mandrels are completion components that house gas lift valves and other devices that communicate with the annulus.
What are side pocket mandrels for Schlumberger gas lift?
KBG Series Side Pocket Mandrels | Schlumberger Camco gas lift KBG series side pocket mandrels for 1-in [25.4-mm] valves incorporate an integral, one-piece pocket and tool discriminator and an orienting sleeve for positive kickover tool alignment in highly deviated wells. Menu Characterization Back to Main Menu
How big is a side pocket mandrel tubing?
Specializing in manufacturing & design of Gas Lift Mandrels & related products. The Vanoil Side Pocket Mandrels are primarily designed for gas lift and are available in sizes 2-3/8 through 7 inch tubing.
What kind of steel is used in Vanoil side pocket mandrels?
The Vanoil Side Pocket Mandrels are manufactured from AISI 4130, 13CR, S13CR, or 9Cr-1MO steels. All materials are procured to ASTM standards. The Vanoil Side Pocket Mandrels are designed for use with a top BK-2 latch and a bottom collet latch, and can be run in highly deviated wells as well as dual completions.