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Treatment method for drilling mud cuttings in oil and gas fields

A treatment method, drilling mud technology, applied in sludge treatment, biological sludge treatment, immiscible solvent sludge treatment, etc., can solve the problems of non-environmental protection treatment costs, large soil damage, etc., to improve mud properties, improve Effect of Soil Aggregate Structure

Active Publication Date: 2019-08-06
陕西同泽人居工程科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a treatment method for drilling mud in oil and gas fields, which solves the problems that the existing methods for processing drilling mud damage the soil, are not environmentally friendly and have high processing costs

Method used

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  • Treatment method for drilling mud cuttings in oil and gas fields
  • Treatment method for drilling mud cuttings in oil and gas fields
  • Treatment method for drilling mud cuttings in oil and gas fields

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Step 1, adding crushed straw (with a particle size of 5 mm to 50 mm) to the drilling mud produced on the drilling site, the mass ratio of the drilling mud to the straw is 1:0.05, and stirring evenly;

[0028] Step 2, adding humic acid to the drilling mud processed in step 1, the mass ratio of drilling mud and humic acid is 1:0.12, complexing the heavy metal ions in the drilling mud, the heavy metal ions are arsenic, mercury, One or more of lead, cadmium and chromium;

[0029] Step 3, adding microbial preparations to the drilling mud treated in step 2, the mass ratio of drilling mud and microbial preparations is 1:0.005, and the microbial preparations are Bacillus colloidus or Bacillus subtilis, that is, complete the treatment of drilling mud processing.

Embodiment 2

[0031] Step 1, adding crushed straw (with a particle size of 5 mm to 50 mm) to the drilling mud produced on the drilling site, the mass ratio of the drilling mud to the straw is 1:0.1, and stirring evenly;

[0032] Step 2, adding humic acid to the drilling mud processed in step 1, the mass ratio of drilling mud and humic acid is 1:0.1, complexing the heavy metal ions in the drilling mud, the heavy metal ions are arsenic, mercury, One or more of lead, cadmium and chromium;

[0033] Step 3, adding microbial preparations to the drilling mud treated in step 2, the mass ratio of drilling mud and microbial preparations is 1:0.008, and the microbial preparations are Bacillus colloidus or Bacillus subtilis, that is, complete the treatment of drilling mud processing.

Embodiment 3

[0035] Step 1, adding crushed straw (with a particle size of 5 mm to 50 mm) to the drilling mud produced on the drilling site, the mass ratio of drilling mud and straw is 1:0.2, and stirring evenly;

[0036] Step 2, adding humic acid to the drilling mud processed in step 1, the mass ratio of drilling mud and humic acid is 1:0.15, complexing the heavy metal ions in the drilling mud, the heavy metal ions are arsenic, mercury, One or more of lead, cadmium and chromium;

[0037] Step 3, adding microbial preparations to the drilling mud treated in step 2, the mass ratio of drilling mud and microbial preparations is 1:0.01, and the microbial preparations are Bacillus colioids or Bacillus subtilis, that is, complete the treatment of drilling mud processing.

[0038] Above-mentioned 3 items all carry out drilling mud cuttings according to processing method of the present invention, the present invention is also provided with blank control, all in the test that Changqing Oilfield carr...

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Abstract

The invention discloses a treatment method for drilling mud cuttings in oil and gas fields, and the treatment method is specifically implemented according to the following steps: step 1, adding crushed straw into the drilling mud cuttings generated in a drilling site, and uniformly stirring; step 2, adding humic acid into the drilling mud cuttings treated in the step 1 to complexe heavy metal ionsin the drilling mud cuttings; and step 3, inoculating the drilling mud cuttings treated in the step 2 with a microbial preparation to finish the treatment of the drilling mud cuttings. The treated drilling mud cuttings are suitable for the production of plants, and improve the yield, quality and nutritional components of the plants, the heavy metal content is within the safety and quality index range of agricultural products, the treated drilling mud cuttings are suitable for planting, waste is changed into valuables, and the treated drilling mud cuttings are environment-friendly and have lowcost.

Description

technical field [0001] The invention belongs to the technical field of soil pollution improvement, and in particular relates to a treatment method for drilling mud debris in oil and gas fields. Background technique [0002] At present, environmental protection is a basic national policy of our country, and maintaining the sustainable and coordinated development of society, economy and environment has become a strategic task and goal of our country. With the continuous improvement of environmental regulations and the strengthening of people's awareness of environmental protection, relevant departments have successively formulated various environmental protection regulations, which will strictly limit the arbitrary discharge of drilling mud and cuttings. Drilling fluid is an indispensable and important material in the process of oil and gas drilling. In order to achieve the purpose of safe and fast drilling, various types of drilling fluid additives are used, and as the drill...

Claims

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Application Information

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IPC IPC(8): C02F11/00C02F11/02C02F11/147C05G3/04C09K17/32C02F101/20C02F101/22C02F101/30C09K101/00C09K105/00C05G3/80
CPCC02F11/00C02F11/002C02F11/02C02F11/147C05F7/00C09K17/32C02F2101/20C02F2101/22C02F2101/30C09K2101/00C09K2105/00C05G3/80C05F11/00C05F11/02C05F11/08
Inventor 卓泽凡郝明德
Owner 陕西同泽人居工程科技有限公司
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