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Well flushing return material processing device and processing method thereof

A treatment device and well cleaning technology, applied in the direction of flushing wellbore, earthwork drilling, wellbore/well components, etc., can solve the problems of polluting the environment, harming human health, etc., achieving simple treatment methods, reducing pollution, and strong operability Effect

Active Publication Date: 2020-11-03
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a treatment device and treatment method for the return from well flushing, so as to overcome the problems in the prior art that toxic and harmful gases, volatile organic compounds, etc. are directly discharged into the atmosphere to pollute the environment and harm human health. The device for treating the return from well flushing and its treatment method can perform harmless treatment of harmful gaseous substances, and realize the pollution-free discharge of the return from well flushing, which is safe and environmentally friendly

Method used

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  • Well flushing return material processing device and processing method thereof

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Embodiment Construction

[0032] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0033] Such as figure 1 As shown, the present invention provides a treatment device 100 for the return from well flushing. The return from well flushing generally includes solid returns such as harmful gaseous substances, oil-water mixtures, and sediment. The treatment device 100 for the return from well flushing includes A well-washing and sand-washing tank 1 that can be sealed for the return of well-washing, the upper part of the side wall of the well-washing and sand-washing tank 1 is provided with a sealable exhaust air structure 2, and the bottom outlet of the exhaust air structure is connected. The gas treatment structure 3, the exhaust air structure 2 can exhaust the harmful gaseous substances (including toxic and harmful ...

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Abstract

The invention relates to a well-flushing returned substance processing device and a processing method thereof, and relates to the technical field of oil field production. The device comprises a well-flushing sand washing pool capable of being sealed, wherein the upper part of a side wall of the well-flushing sand washing pool is provided with an air extracting and exhausting structure capable of being sealed, a bottom outlet of the air extracting and exhausting structure is provided with a gas processing structure capable of being sealed in a communicated manner, the air extracting and exhausting structure can extract and exhaust harmful gaseous substances in the well-flushing sand washing pool into the gas processing structure, the gas processing structure can process the harmful gaseoussubstances. The well-flushing returned substance processing device and the processing method thereof can overcome a problem that toxic and harmful gases, volatile organic compounds and the like are directly discharged into the atmosphere to pollute the environment and harm the human health in the prior art. The well-flushing returned substance processing device and the processing method thereof can perform harmless treatment on the harmful gaseous substances, thereby achieving pollution-free discharge of the well-flushing returned substances, and being safe and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of oilfield production, in particular to a treatment device and a treatment method for the return from well flushing. Background technique [0002] At present, before the downhole operation of oil production wells, in order to ensure various requirements such as well control and safety, it is necessary to perform operations such as well cleaning and well killing during operation. The current general well washing process is that there are sand washing pools on the operating ground, generally with two volumes of 10 square meters (1m*2m*5m) and 12 square meters (1m*2m*6m), which are used to hold the return water during well washing. things. [0003] With the continuous deepening of oilfield development, the continuous conversion of development methods, and the continuous expansion of the application range of steam flooding, fire flooding, SAGD and other processes, the toxic and harmful gases in operating wells...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B21/06E21B37/00
CPCE21B21/065E21B21/067E21B37/00
Inventor 贾财华马春宝王德伟高玉军庞全书孙立超荆树鹏要步旻
Owner PETROCHINA CO LTD
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