Stone oil well drilling sullage continuous processing technique

A technology of oil drilling and treatment process, applied in the direction of water/sewage multi-stage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of reducing the color of sewage and other pollutants, and discontinuous treatment of sewage , Difficult combination between treatments and other problems, to achieve harmless, fast and efficient oxidation, and solve the effect of difficult combination

Active Publication Date: 2008-03-12
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology

The present invention effectively solves the problems of difficult combination between unit treatment units of oil drilling sewage, poor treatment effect and discontinuous treatment of sewage, not only reduces the chroma and other pollutants of sewage, but also effec

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  • Stone oil well drilling sullage continuous processing technique
  • Stone oil well drilling sullage continuous processing technique
  • Stone oil well drilling sullage continuous processing technique

Examples

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[0037] The continuous treatment process of oil drilling wastewater includes: coagulation-coagulation aid-sedimentation-filtration-oxidation adsorption-up to standard discharge steps, the specific steps are:

[0038]a. Coagulation: Add a coagulant to the sewage in the coagulation tank 1, and monitor the pH value of the drilling sewage online to guide the amount of coagulant added. The coagulant and the suspended matter in the water coagulate and gradually form alum flocs Body, speed up the sedimentation speed of suspended solids in water, remove most of the suspended solids, while removing part of the color and chemical oxygen demand, to meet the requirements of the next step;

[0039] b. Coagulation aid: After the uniformly mixed sewage obtained in step a is pumped into the coagulation aid tank 2 from the outlet pipe at the lower part of the coagulation tank 1, an alkaline agent is added to mix and adjust so that the pH value reaches neutral, that is, 6 Within the range of 8, add ...

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Abstract

The present invention discloses a continuous processing treatment for petroleum drilling, and the sewage continuous processing treatment for petroleum drilling includes the following steps: mixed coagulation, assistant coagulation, filter, oxidation absorption and drainage standard. The present invention has effectively solved the problem of difficult combination of unit treatment, bad treatment effect and inconsecutive sewage treatment of sewage of petroleum drilling. The present invention not only reduces the sewage chroma and other pollutants, in particular able to remove the pollutants dissolved in the sewage, but also applies chemical mixed coagulation, catalytic oxidation and physical adsorption to a set of flows to realize drainage standard of sewage after consecutive and deep treatment.

Description

technical field [0001] The invention relates to a sewage treatment process, in particular to a continuous treatment process for petroleum drilling sewage. Background technique [0002] In the prior art, a large number of sulfonated polymer mud systems with high chroma, high pollution, and refractory degradation are used in drilling operations to ensure the normal progress of drilling operations, resulting in many types and large amounts of mud treatment agents added, resulting in The post-drilling wastewater has the characteristics of high concentration and high pollution such as high chroma, high mineral oil, and high solid content. At present, domestic oil drilling wastewater is generally treated by chemical coagulation. The chemical coagulation sedimentation treatment process is simple and flexible, and can remove most solid phase substances, adsorbed on solid surfaces and colloidal pollutants in sewage, and reduce sewage to a certain extent. Chromaticity and other pollu...

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Application Information

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IPC IPC(8): C02F9/04C02F1/52C02F1/28
Inventor 陈立荣李新民代华高蒋学彬李辉陈万德张敏刘安宇
Owner BC P INC CHINA NAT PETROLEUM CORP
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