Comprehensive utilization method of oil field drilling sludge

An oilfield drilling and sludge technology, applied in the direction of sludge treatment, drilling composition, chemical instruments and methods, etc., can solve the problems of resource consumption, high cost, secondary environmental pollution, etc.

CN104556601AActive Publication Date: 2015-04-29韩京龙

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Patent Information

Authority / Receiving Office: CN · China
Current Assignee / Owner: 韩京龙
Publication Date: 2015-04-29

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Abstract

The invention relates to the technical field of resource development, in particular to a comprehensive utilization method of oil field drilling sludge. Sludge which does not contain oil is subjected to electrode separation, aerobic fermentation and granulation to form a product 1 or is subjected to extrusion forming to form a product 2; sludge which contains low content of oil is subjected to oxidation, aerobic fermentation and extrusion forming to form the product 2 or is subjected to granulation to form the product 1; sludge containing high content of oil is added with a moisture modifier, a combustion improver and a bulking and softening agent and is subjected to granulation forming and microwave drying, dried granules are screened, undersize materials are subjected to granulation forming again, and oversize materials form a product 3. Compared with the prior art, oil field drilling sludge, oily sludge and oil sludge and sand with different oil content are treated from the perspective of comprehensive utilization of resources, and the ultimate products can be effectively used as different resources.

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Description

technical field

[0001] The invention relates to the technical field of resource development, in particular to a method for comprehensive utilization of oilfield drilling sludge. Background technique

[0002] A large amount of mud and oily sludge with high moisture content are produced during oilfield drilling. According to the oil content in oilfield sludge, it can be divided into oil-free sludge and oily sludge, and oily sludge is divided into low oily sludge and high oily sludge. The treatment of these sludges and oily sludge has become a very important issue in the oilfield industry. Difficult environmental issues. So far, the treatment of drilling mud is mainly to add a curing agent to the mud for curing and landfill. There are certain problems with this treatment method: 1. Land acquisition is required, and each well needs to be equipped with 0.9 to 1 mu of land, which wastes precious land resources; 2. There is a risk of secondary environmental pollution; 3. With the...

Claims

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