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Novel separation measurement sled pollution discharge system and method for shale gas field

A sewage system and shale gas technology, which is applied in earth-moving drilling, wellbore/well components, and production fluids, etc., can solve problems such as jeopardizing the safe production and operation of shale gas, structural failure of sewage pipelines, and perforation of sewage pipelines. Simple structure, preventing excessive thinning, and facilitating installation and operation

Active Publication Date: 2020-08-14
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology

In the sewage discharge process, there is a problem of severe erosion of the sewage pipeline due to the high production pressure of shale gas in each production period. The sewage pipeline will be perforated due to the excessive erosion rate, resulting in the failure of the sewage pipeline structure and endangering the shale gas. Normal safe production and operation

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  • Novel separation measurement sled pollution discharge system and method for shale gas field
  • Novel separation measurement sled pollution discharge system and method for shale gas field
  • Novel separation measurement sled pollution discharge system and method for shale gas field

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the technical features in the embodiments can be combined with each other. Unless otherwise defined, the technical terms or scientific terms used in the disclosure of the present invention shall have the usual meanings understood by those skilled in the art to which the disclosure belongs. Words such as "comprising" or "comprising" used in the disclosure of the present disclosure mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects . "Up", "Down", "Left", "Right" and so on are only used to indicate the relative positional relationship. When the absolute position of the described object changes, the relative positional relationship m...

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Abstract

The invention discloses a novel separation measurement sled pollution discharge system and method for a shale gas field. The novel separation measurement sled pollution discharge system comprises a shale gas separator, a liquid collecting pack, a sewage pool, and a centrifugal pump, wherein the liquid collecting pack is a sealed container; liquid level meters are arranged on the shale gas separator and the liquid collecting pack; a sand blocking plate is arranged in the sewage pool, and is used for dividing the sewage pool into a sand settling zone and a contaminated zone; a liquid dischargingopening is formed in the bottom of the shale gas separator; a liquid inlet I is formed in the top of the liquid collecting pack; a liquid discharging opening of the shale gas separator is connected with a liquid inlet I of the liquid collecting pack through a vertical pipeline I; a valve A is arranged on the pipeline I; a liquid outlet is formed in the bottom of the liquid collecting pack, and isconnected with the sand settling zone through a pipeline II; a valve B and a valve D are arranged on the pipeline II; the contaminated zone is connected with an entrance of the centrifugal pump through a pipeline III; an exit of the centrifugal pump is connected with a liquid inlet II of the liquid collecting pack through a pipeline IV; and a valve C is arranged on the pipeline IV. Through the adoption of the novel separation measurement sled pollution discharge system disclosed by the invention, the erosion rate of the pollution discharge pipeline can be reduced, and the operation safety ofthe equipment is guaranteed.

Description

technical field [0001] The invention relates to the technical field of shale gas exploitation, in particular to a novel separation and metering skid sewage discharge system and method for shale gas fields. Background technique [0002] The shale gas collection system used in shale gas exploitation is as follows: figure 1 As shown, the early production process of shale gas production is mainly that the gas containing impurities passes from the wellhead gas production tree through the gas production pipeline to the high-pressure sand removal skid for preliminary sand removal, and then the shale gas enters the separator for gas-liquid separation and further removal. sand. Due to the limited pore size of the filter cartridge of the desander and the structure of the desander, the actual sand removal efficiency of the desander is limited, and the liquid shale gas after passing through the desander will still carry about 10% of sand particles. The separator performs gas-liquid se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/34E21B41/00
CPCE21B43/34E21B41/005
Inventor 刘恩斌王兴杰王明军季永强李文胜郭冰燕彭勇廉殿鹏温櫂荣苏中亚
Owner SOUTHWEST PETROLEUM UNIV
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