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Shale gas well drilling waste-oil-based mud curing material

A technology of oil-based mud and curing materials, which is applied in the field of curing materials and shale gas well drilling waste oil-based mud curing materials. Good for sustainability, high strength and stability, low leaching effect

Inactive Publication Date: 2016-07-20
南京乾庚新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a shale gas well drilling waste oil-based mud solidification material for the current situation that the existing solidification materials are mainly suitable for common soils such as clay and silt and cannot effectively solidify the waste oil-based mud from drilling. The problem of environmental pollution of drilling waste oil-based mud and the realization of comprehensive utilization of oilfield solid waste

Method used

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  • Shale gas well drilling waste-oil-based mud curing material
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  • Shale gas well drilling waste-oil-based mud curing material

Examples

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Embodiment 1

[0026] In this embodiment, the mixing ratio of the solidified material of waste oil-based mud from shale gas well drilling is: 20% of oil-based mud, 70% of sand, 4% of curing agent (A1), and 6% of water. Put the oil-based mud, sand, and curing agent in a mixing pot and mix evenly, then add the mixing water and mix for 5 minutes. After discharging, press the mixed solidified material into a shape with a testing machine, prepare a sample of 4cm*4cm*16cm size, and standard curing.

Embodiment 2

[0028] In this embodiment, the mixing ratio of the solidified material of waste oil-based mud from shale gas well drilling is: 30% of oil-based mud, 60% of sand, 4% of curing agent (A2), and 6% of water. Put the oil-based mud, sand, and curing agent in a mixing pot and mix evenly, then add the mixing water and mix for 5 minutes. After discharging, press the mixed solidified material into a shape with a testing machine, prepare a sample of 4cm*4cm*16cm size, and standard curing.

Embodiment 3

[0030] In this embodiment, the mixing ratio of the solidified material of waste oil-based mud from shale gas well drilling is: 22% of oil-based mud, 60% of sand, 8% of curing agent (A1), and 10% of water. Put the oil-based mud, sand, and curing agent in a mixing pot and mix evenly, then add the mixing water and mix for 5 minutes. After discharging, press the mixed solidified material into a shape with a testing machine, prepare a sample of 4cm*4cm*16cm size, and standard curing.

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Abstract

The invention discloses a shale gas well drilling waste-oil-based mud curing material.The problem that a drilling waste-oil-based mud environment is polluted is effectively solved, and comprehensive utilization of solid waste of an oil field is achieved.The material is low in leaching and small in pollution, waste resources are comprehensively utilized, and sustainable development of economy is promoted.The shale gas well drilling waste-oil-based mud curing material is prepared from, by mass, 10%-50% of oil-based mud, 30%-70% of sand, 0.1%-10% of curing agent and 0.1%-10% of water.

Description

Technical field [0001] The invention relates to a solidified material, in particular to a solidified material for shale gas well drilling waste oil-based mud, and belongs to the field of oilfield solid waste treatment and utilization. Background technique [0002] During the development of shale gas, a large amount of waste oil-based mud was produced due to the use of oil-based drilling fluid. Shale gas well drilling waste oil-based mud is mainly composed of clay, organic matter, petroleum hydrocarbons, barite and a small amount of metal elements, showing high pH, ​​high chroma, high salt, high COD, and heavy metal and radioactive element content exceeding the standard. Nature, the impact on the environment is very large. If the oil-based mud is not treated and directly discharged or simply landfilled, it will seriously pollute the soil and groundwater and cause serious damage to the ecosystem. Shale gas well drilling waste oil-based mud also contains a large amount of heavy me...

Claims

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Application Information

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IPC IPC(8): C02F11/00C02F103/10
CPCC02F11/008C02F2103/10
Inventor 华苏东孟建伟姚晓刘娟
Owner 南京乾庚新材料科技有限公司
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