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Oil removal treatment device and method for oil-based drill cuttings

An oil-based drilling cuttings and oil treatment technology, applied in construction and other fields, can solve the problems of expensive extraction agent, low gasification temperature, and easy volatility

Active Publication Date: 2020-09-08
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the extraction agents currently used are relatively expensive, and the gasification temperature is low, and they are extremely volatile at room temperature, posing safety hazards

Method used

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  • Oil removal treatment device and method for oil-based drill cuttings
  • Oil removal treatment device and method for oil-based drill cuttings
  • Oil removal treatment device and method for oil-based drill cuttings

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Embodiment Construction

[0083] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0084] The oil-based drilling cuttings reversible conversion degreasing treatment technology of the present invention uses a "reversible conversion degreasing agent" and a reversible conversion degreasing device as a technical carrier to realize continuous reversible conversion degreasing of oil-based drilling cuttings. The embodiment part of the present invention is studied through small-scale test equipment to determine the reversible conversion oil removal mechanism, oil removal effect (oil recovery rate, residual oil content) and influencing factors, and investigate the adaptability to different oily solid wastes, oil...

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Abstract

The invention discloses an oil removal treatment device and method for oil-based drill cuttings. The device is arranged in an upper treatment chamber and a lower treatment chamber and comprises an extraction unit, a solid-liquid separation unit, an extraction oil separation unit and an extraction agent recovery unit. Main equipment of the device is divided into the two treatment chambers, integrated design is adopted, major equipment is placed in the upper treatment chamber, and the lower treatment chamber is mainly used for containing liquid storage tanks of all the units. Through the design,all treated liquid phases can flow into the liquid storage tanks through self weight, a large amount of power is saved, the two treatment chambers are stacked up and down, the occupied area can be reduced, and the equipment can be operated more conveniently.

Description

technical field [0001] The invention belongs to the technical field of oil and gas field drilling environment protection in the petroleum industry, and in particular relates to an oil-based drilling cuttings degreasing treatment device and method. Background technique [0002] As the scale of shale gas development continues to expand, the use of oil-based drilling fluids has increased, and the amount of oil-based drilling cuttings produced has also increased significantly. Taking Changning and Weiyuan shale gas blocks as examples, about 600 new wells are expected to be developed. Based on the average oil-based cuttings produced by a single well of 300 tons / well, it is estimated that about 180,000 tons of oil-based cuttings waste will be generated. For entrusted disposal, the processing cost alone is expected to be as high as more than 300 million yuan (calculated at 1,700 yuan per ton). In addition, oil-based drilling cuttings belong to the scope of hazardous waste manageme...

Claims

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Application Information

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IPC IPC(8): E21B21/01
CPCE21B21/01
Inventor 刘晓辉孙静文谢水祥李兴春仝坤许毓张明栋任雯张哲娜
Owner BC P INC CHINA NAT PETROLEUM CORP
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