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Method of anti-leak treatment on petroleum drilling place by adopting composite geo-membrane

A composite geomembrane and oil drilling technology, which is applied in the fields of soil protection, infrastructure engineering, construction, etc., can solve the problem that the technical content of the composite geomembrane oil drilling site is not involved, idle land cannot be obtained, and the effect of preventing leakage is not obvious To improve the anti-leakage effect, prevent pollution, and facilitate drilling construction

Active Publication Date: 2012-01-11
CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the above-mentioned technical scheme only specifies how to bond the composite geomembrane, and does not involve the technical content of applying the composite geomembrane to the oil drilling site, especially relying only on bonding the composite geomembrane, in actual use, It was found that the effect of preventing leakage was not obvious, and the pollution of the drilling site was still not fundamentally solved, and the technical problem that the idle land could not be "recultivated" after drilling,

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  • Method of anti-leak treatment on petroleum drilling place by adopting composite geo-membrane
  • Method of anti-leak treatment on petroleum drilling place by adopting composite geo-membrane
  • Method of anti-leak treatment on petroleum drilling place by adopting composite geo-membrane

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Embodiment 1

[0038] The invention discloses a method for anti-leakage treatment of an oil drilling site by using a composite geomembrane. The following steps are adopted:

[0039] a. Site leveling: Before laying the composite geomembrane, carry out the operation according to the conventional site leveling operation procedure; b. Laying the composite geomembrane: first level the base surface with sand or clay with a small particle size, and then lay the composite geomembrane on the base surface. Geomembrane, the two ends of the composite geomembrane embedded in the soil are corrugated, and finally a transitional layer is laid on the composite geomembrane with fine sand or clay, and the joints between multiple composite geomembranes are processed; c, laying Leakage pipes: Arrange leakage pipes at places prone to leakage; d. Lay fly ash stabilized layer: use crushed stone, lime and fly ash as raw materials, lay fly ash stabilized layer on the composite geomembrane, according to the total amoun...

Embodiment 2

[0041] As a preferred embodiment of the present invention, in step d, when the fly ash stabilized layer is laid on the composite geomembrane, the laying of the fly ash stabilized layer is carried out while the film is being laid. In the step b, the laying thickness of the transitional layer is 2cm. In the b step, the seam treatment method adopts the heat welding method, and the overlap width of the weld seam in the heat welding is not less than 8cm. In the step b, the laying thickness of the composite geomembrane is not less than 0.25mm. In the b step, the connection between the composite geomembrane and the surrounding structures is anchored by expansion bolts and steel plate beading, and then the emulsified asphalt is painted on the connection part for bonding, and the thickness of the emulsified asphalt is more than 2 mm. In the step c, the place prone to leakage refers to the seam, the weight pump, the machine room or the connection between the composite geomembrane and t...

Embodiment approach

[0043] With reference to the accompanying drawings of the description, as the best embodiment of the present invention is as follows:

[0044] a. Site leveling:

[0045] Before the composite geomembrane is laid, the operation shall be carried out according to the conventional site leveling operation procedure. It mainly includes earth-rock blasting, earth-rock excavation, earth-rock allocation, site leveling and compaction and other processes.

[0046] b. Lay composite geomembrane

[0047] During construction, the base surface should be leveled first with sand or clay with small particle size, and then the composite geomembrane should be laid. The composite geomembrane should not be stretched too tightly, and the parts buried in the soil at both ends are corrugated. Finally, a layer of about 2cm is laid on the geomembrane with fine sand or clay. Lay a 20cm fly ash stable layer as an anti-scour protection layer. During construction, try to protect the geomembrane. It is best ...

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Abstract

The invention discloses a method of anti-leak treatment on a petroleum drilling place by adopting a composite geo-membrane, relating to the technical field of adopting composite geotechnical materials to treat leakage of the petroleum drilling place. The method comprises the following steps of firstly, leveling the place; secondly, paving the composite geo-membrane; thirdly, paving a leakage pipeline: arranging the leakage pipeline at a position of easily having leakage; fourthly, paving a lime-ash stabilizing layer: with crushed stones, lime and fly ash as raw materials, paving the lime-ash stabilizing layer on the composite geo-membrane, wherein the lime-ash stabilizing layer comprise the following raw materials in percentage by weight, calculated by occupying the total volume of the raw materials: 8-10 percent of the lime, 10-12 percent of the fly ash and the balance of the crushed stones; and fifthly, paving a crushed stone surface layer: paving a 8-10cm crushed stone surface layer on the lime-ash stabilizing layer. By adopting the invention, waste mud and waste liquid of petroleum can be prevented from polluting the drilling place to enable idle land after drilling to be in second plowing, thereby having the effects of protecting land resources and lowering the land using cost.

Description

technical field [0001] The invention relates to the technical field of anti-leakage treatment of oil drilling sites by using composite geotechnical materials, which is used for recultivation treatment of well site land after petroleum geological drilling. Background technique [0002] Land is the basis for human survival and development. However, the land polluted by waste oil mud and waste liquid will not only further pollute the air and water environment and affect human health, but also make the land unable to be recultivated and waste more precious land resources. [0003] In the well site construction of the current oil drilling project, the traditional card stone laying mud-bound gravel is always used in the drilling well site construction method. However, this construction method often cannot stop the pollution of the well site and its surrounding soil due to the leakage of drilling waste fluid, mud and sewage. [0004] For this reason, the current oil drilling proj...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D31/00E02D3/00
Inventor 黄洪谷饶平周州刘颖钟仕林罗明聪张志荣樊奇
Owner CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD