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Electric submersible pumping system with gas vent

A pumping system, electric technology, applied in the direction of non-variable pumps, pumps, pump devices, etc., can solve the problems of increasing the state of air lock and reducing pumping efficiency

Inactive Publication Date: 2008-10-08
PRAD RES & DEV LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Attempts have been made to evacuate the gas that has accumulated beneath the packer, but these have experienced limited success
Without adequate removal of accumulated gas, the submersible pump of an electric submersible pumping system may be exposed to free gas, reducing pumping efficiency and increasing the likelihood of an air lock condition

Method used

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  • Electric submersible pumping system with gas vent
  • Electric submersible pumping system with gas vent
  • Electric submersible pumping system with gas vent

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Embodiment Construction

[0015] In the following description, numerous details are set forth in order to provide an understanding of the present invention. However, it will be understood by those of ordinary skill in the art that the invention may be practiced without these details and that many variations or modifications of the described embodiments may be permitted.

[0016] The present invention generally relates to well completions that may be used in subterranean environments to move fluids to desired locations. Such completions typically include an electrically powered submersible pumping system disposed on a pipeline, such as a production pipeline or flexible pipeline. The pipeline can serve as a flow channel for fluids that are mined by the electric submersible pumping system and pumped to the desired collection location. Well completions typically also include at least one packer positioned to form a seal between the tubing and the surrounding wellbore wall, which may be in the form of well...

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PUM

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Abstract

A technique is provided for pumping fluids from a wellbore. An electric submersible pumping system is deployed in a wellbore on a tubing. Free gas can potentially accumulate around the electric submersible pumping system, but a gas vent is positioned to remove free gas.

Description

technical field [0001] The present invention relates to electric submersible pumping systems. Background technique [0002] Well completions are used in a variety of well related applications including, for example, production of fluids. A wellbore is drilled in the geological formation, and the completion is placed in the wellbore by tubing or other deployment mechanism. Typically, a wellbore is drilled through one or more formations containing desired production fluids, such as hydrocarbon-based fluids. [0003] In many of these applications, electric submersible pumping systems are used to pump fluid from the wellbore to the collection location. However, the formation of free gas at the pump suction of electro-submersible pumping systems can seriously reduce pumping system efficiency. In some circumstances, an air lock condition may result in the pump being unable to deliver sufficient pressure to keep pumping activity continuous. [0004] When using a packer on an el...

Claims

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Application Information

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IPC IPC(8): F04D13/10
CPCE21B43/128
Inventor 奥莱加里奥·里瓦斯帕特里夏·A·卡拉斯
Owner PRAD RES & DEV LTD