Leakage stopping material for well drilling

A plugging material and drilling technology, applied in the directions of drilling compositions, chemical instruments and methods, etc., can solve the problems of producing plugging materials from unseen ceramic waste, and achieve low cost, strong plugging ability, and strong plugging. The effect of pressure capacity

Inactive Publication Date: 2016-01-06
成都棕通石油配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no use of ceramic waste as a raw material to produce plugging materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A plugging material for drilling, characterized in that: the plugging material is composed of the following raw materials in parts by weight:

[0019] 20 parts of ceramic waste particles;

[0020] 0.5 parts of lignocellulose;

[0021] 2 parts polyacrylamide;

[0022] 0.5 part of methyl cellulose.

[0023] The ceramic waste granules are ceramic factory waste granules with particle diameter≦200 mesh.

[0024] The ceramic waste particles are crushed particles of colored waste body.

Embodiment 2

[0026] A plugging material for drilling, characterized in that: the plugging material is composed of the following raw materials in parts by weight:

[0027] 30 parts of ceramic waste particles;

[0028] 0.1 parts of lignocellulose;

[0029] 5 parts polyacrylamide;

[0030] 0.2 parts of methylcellulose.

[0031] The ceramic waste granules are ceramic factory waste granules with particle diameter≦200 mesh.

[0032] The ceramic waste particles are pulverized particles of waste ceramic tiles.

Embodiment 3

[0034] A plugging material for drilling, characterized in that: the plugging material is composed of the following raw materials in parts by weight:

[0035] 25 parts of ceramic waste particles;

[0036] 0.3 parts of lignocellulose;

[0037] 3 parts polyacrylamide;

[0038] 0.4 part of methyl cellulose.

[0039] The ceramic waste granules are ceramic factory waste granules with particle diameter≦200 mesh.

[0040] The ceramic waste granules are pulverized granules composed of colored waste billets and waste ceramic tiles.

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PUM

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Abstract

The invention provides a leakage stopping material for well drilling and belongs to the field of oilfield drilling engineering. The leakage stopping material is used for solving the problem that a lost circulation problem becomes increasingly serious in the existing petroleum and natural gas exploration. The leakage stopping material for well drilling, provided by the invention, is cheap and is prepared from the following raw materials in parts by weight: 20-30 parts of ceramic waste granules, 0.1-0.5 part of lignocellulose, 2-5 parts of polyacrylamide and 0.2-0.5 part of methylcellulose. The leakage stopping material for well drilling, provided by the invention, is good in leakage stopping effect and has relatively high leakage stopping and pressure loading capacity; and compared with fibrous leakage stopping cement paste, leakage stopping fluid has higher leakage stopping capacity, so that the leakage stopping material can better adapt to complicated downhole leakage loss strata.

Description

technical field [0001] The invention belongs to the field of oil field drilling engineering, and in particular relates to a plugging material for drilling. Background technique [0002] In recent years, with the further deepening of oil and gas exploration, the problem of well leakage has become increasingly prominent, so plugging has become a necessary measure for safe drilling of many wells, and the selection of appropriate plugging materials combined with the properties of leaky layers is the key to ensure successful plugging. necessary condition. [0003] With the rapid development of social economy and ceramic industry, ceramic industry waste is increasing day by day. It not only puts great pressure on the urban environment, but also limits the development of urban economy and the sustainable development of the ceramic industry. Therefore, the treatment and utilization of ceramic industry waste Very important. At present, the treatment and utilization of ceramic indus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/46
Inventor 祈琪黄明张宇
Owner 成都棕通石油配件有限公司
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