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Methods and systems for pressurizing harsh fluids

A fluid, demanding technology used in pressure exchangers to solve expensive, hard-to-replace, damaged seats

Inactive Publication Date: 2019-06-04
SCHLUMBERGER TECH LTD BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such replacement of the fluid end is very expensive, not only because the fluid end itself is expensive, but also because of the difficulty and timeliness required to perform the replacement
A significant portion of piston pump maintenance costs can be spent on valve replacement
Also, when the valve fails, the seat is often damaged as well and is more difficult to replace than the valve due to the sheer force required to pull the seat from the fluid end

Method used

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  • Methods and systems for pressurizing harsh fluids
  • Methods and systems for pressurizing harsh fluids
  • Methods and systems for pressurizing harsh fluids

Examples

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Embodiment Construction

[0020] The details shown herein are by way of example and for purposes of illustrative discussion of examples of the disclosure only, and have been presented in order to provide what is believed to be the most useful and readily understandable description of the principles and conceptual aspects of the disclosure. Content. For this reason, no attempt should be made to present structural details in more detail than is necessary, but rather the description made with reference to the drawings will enable those skilled in the art to understand how the several forms of the disclosure may be practiced. In addition, the same reference numerals and signs in the various drawings indicate the same elements.

[0021] Pumping aggressive, corrosive or abrasive fluids laden with mud (also known as "harsh" fluids) makes pumps expensive to manufacture and maintain. Embodiments of the present disclosure relate generally to pumping systems for pumping fluid from the surface of a well to a well...

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Abstract

Methods and systems relate to pressure exchangers that exchange pressure energy from a high pressure clean fluid system to a relatively low pressure harsh fluid system for use in situations where the harsh fluid does not contact an identified portion of the pressure exchanger The caustic fluid is pressurized and directed into the wellbore as a high pressure caustic fluid.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Patent Application No. 62 / 119,392, filed February 23, 2015, the contents of which are incorporated herein by reference. technical field [0003] The present disclosure generally relates to methods and systems for pumping fluid from the surface of a well to a wellbore at high pressure. More specifically, the present disclosure relates to pressure exchangers that exchange pressure energy from a high pressure flow fluid system to a relatively low pressure flow fluid system. Background technique [0004] In specialized oilfield applications, pump assemblies are used to pump fluids from the surface of a well to the wellbore at extremely high pressures. Such applications include hydraulic fracturing, well cementing and pumping through coiled tubing, among others. In the example of hydraulic fracturing operations, multi-pump assemblies are typically employed to direct ab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B9/105F04B23/04F04B53/10F04B53/16
CPCF04B9/1053F04B23/04F04B53/10F04B53/16E21B43/2607F04B47/08E21B41/00F04B49/22F04B1/02F04B15/00F04B19/22F04B23/02F04B53/12F04B53/162F04F13/00
Inventor S.韦尔马T.S.拉马克里什南J.帕邦J.D.罗瓦特
Owner SCHLUMBERGER TECH LTD BV