A waste oil-based drilling fluid treatment device
By designing a multi-wellbore device for underground gasification reaction, waste oil-based drilling fluid is converted into combustible gas, solving the problems of complexity and pollution of existing treatment methods and achieving low-cost recycling.
CN118026301BActive Publication Date: 2026-06-12CHINA PETROLEUM & CHEMICAL CORP +3
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2022-11-02
- Publication Date
- 2026-06-12
AI Technical Summary
⚠Technical Problem
Existing methods for treating oil-based drilling fluids are complex and costly, and reinjection methods may lead to formation contamination and energy waste.
⚗Method used
A device comprising multiple wellbores and reaction chambers was designed to ignite underground reservoirs by injecting a gasifying agent and carry out a gasification reaction, converting waste oil-based drilling fluid into combustible gas, which is then cracked and recovered using underground high temperatures.
🎯Benefits of technology
It reduced processing costs, decreased formation pollution, enabled the recycling of waste oil-based drilling fluids, and improved the utilization rate of abandoned reservoirs.
✦ Generated by Eureka AI based on patent content.
Smart Images
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Abstract
The present application relates to a kind of waste oil-based drilling fluid processing device, including the first wellbore and the second wellbore capable of extending into underground reservoir, gas injection channel capable of injecting gasification agent to underground reservoir is arranged in the first wellbore, control system capable of igniting underground reservoir is arranged in gas injection channel, first gas recovery channel capable of guiding underground reservoir gas out of ground is defined in the second wellbore, and the reaction cylinder that the gas injection channel and the first gas recovery channel are communicated is arranged in underground reservoir, the reaction cylinder can inject gasification agent in gas injection channel into underground reservoir so that gasification reaction occurs in the underground reservoir that ignites.Therein, it further includes third wellbore, the lower end of the third wellbore is arranged to be communicated with reaction cylinder and is connected at the position between the first wellbore and the second wellbore, injection channel capable of injecting oil-based drilling fluid into reaction cylinder is defined in the third wellbore.
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