Process for reclaiming the three wastes in site of drilling well on land

An on-site, three-waste technology, used in separation methods, solid waste removal, dehydration/drying/concentrated sludge treatment, etc. , material resources and costs, etc., to achieve the effect of being suitable for promotion and application, easy to implement and simple equipment

Inactive Publication Date: 2004-06-02
张复彦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method can control the "three wastes" of drilling without expanding the scope of its pollution, it requires a lot of manpower, material resources and costs, and the solidified soil structure in the sewage pit is no longer suitable for the growth of vegetation or crops.
In addition, a large amount of mud and cement slurry discharged into the sewage pit cannot be reused, resulting in serious waste

Method used

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  • Process for reclaiming the three wastes in site of drilling well on land
  • Process for reclaiming the three wastes in site of drilling well on land

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Embodiment Construction

[0016] The implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0017] The device that the present invention implements adopted, equipment specification model are as follows:

[0018] Screw pump 90WLB-3012 for sewage recovery;

[0019] Sewage solid-liquid separator for mud desilting 2CNQ-120×8;

[0020] Oil-water separator is a cylindrical general engineering container with a height of 1m and a diameter of 0.5m;

[0021] Clean water drainage pump IS50-32-160 centrifugal pump;

[0022] Modified centrifuge LW400 centrifuge for mud dehydration;

[0023] It is also equipped with a concrete mixer, as well as tankers and trucks for transporting mud and solidified materials, with a volume of 40m 3 1 square mud recovery tank, 20m 3 One cement slurry recovery tank, one cuttings recovery tank, two 200-liter oil drums.

[0024] Indicator category

[0025] The main components of the MTC curing agent used...

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Abstract

A process for in-situ reclaiming three wastes of drilling well on land includes such steps as collecting the sawage, drilling liquid and rock debris into separator, slurry recovery tank, cement paste recovery tank and rock debris recovery tank through helical lobe and slurry pumps separately, and then oil-water separation, dewatering, separating solid particles, treating to make them innocuous, solidifying, and making brick or cement stone. Its advantages include simple process and equipment, low cost and environmental protection.

Description

Technical field: [0001] The invention relates to a method for environmental protection and material reuse in the oil drilling construction process. Background technique: [0002] Waste water, waste liquid (drilling fluid such as mud and cement slurry), and waste residue (rock cuttings) discharged during onshore oil drilling construction are collectively referred to as "three wastes". Because the "three wastes" contain petroleum, chloride ions, and heavy metals, they will cause serious pollution to the surrounding environment such as land and water. At present, in order to prevent the "three wastes" from polluting the well site environment, the usual practice is to dig out a volume of about 500m2 near the well site before drilling. 3 In order to store the "three wastes" discharged during the drilling construction process; after the drilling construction is completed, it is necessary to use chemical methods to harmlessly treat and solidify the "three wastes" of drilling. Alt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09B3/00C02F1/40C02F11/12
Inventor 张复彦
Owner 张复彦
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