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Shale gas well drilling waste oil-based mud curing material

A technology for oil-based mud and solidified materials, which is used in fixed/solidified sludge treatment, sludge treatment, chemical instruments and methods, etc., and can solve the problems of accelerated damage to mixing equipment, inability to continue work, and long processing time. Achieve the effect of protecting mixing equipment, accelerating coagulation speed and working speed

Pending Publication Date: 2021-05-14
CHONGQING INST OF GEOLOGY & MINERAL RESOURCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the base oil in oil-based mud—diesel oil, will produce aromatic hydrocarbons with toxicity, and the more aromatic hydrocarbons contained, the greater the toxicity
[0005] In the preparation of existing shale gas well drilling waste oil-based mud solidification materials (such as prior art CN201610128539.4 ), does not have the step of flocculation, so that the fusion of various materials can only rely on the continuous stirring of the mixing equipment, but in this way, the long-term high-intensity work will speed up the damage of the mixing equipment, and then It will cause the work to be impossible to continue, and the processing time will be extremely long, which will lead to extremely unfavorable conditions for people to use

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0028] A shale gas well drilling waste oil-based mud solidification material, its raw materials include by weight: 45% oil-based mud, 35% sand, 0.3% curing agent, 18.1% water, and 1.6% flocculant.

[0029] 1. The curing agent can be used:

[0030] (1) Alkaline and acidic curing agents:

[0031] ①Basic curing agent: including aliphatic diamines and polyamines, aromatic polyamines, other nitrogen-containing compounds and modified fatty amines;

[0032] ② Acidic curing agent: including organic acids, acid anhydrides, and boron trifluoride and its complexes;

[0033] (2) Addition and catalytic curing agents:

[0034] ① Addition type curing agent: This type of curing agent undergoes an addition reaction with the epoxy group to form a part of the cured product chain segment, and through a gradual polymerization reaction, the linear molecules are cross-linked into body-type structural molecules. This type of curing agent is also called melon type curing agent. Such as primary amine...

Embodiment 2

[0110] A shale gas well drilling waste oil-based mud solidification material, the raw materials of which include by weight: 60% oil-based mud, 30% sand, 5% curing agent, 13.8% water, and 1.2% flocculant.

[0111] S1. First, prepare all the materials and put them aside, and then filter the materials that need to be tested. The materials used for the test are: 60% oil-based mud, 30% sand, 5% curing agent, and 13.8% water , flocculant 1.2%, and then filter the impurities and larger lumps through the screening method to make the material more pure and clean, then weigh according to different formulas, weigh out the corresponding proportion, and then sequentially Put it away.

[0112] S2. Put various materials into the stirring and mixing equipment in sequence according to the proportioning order, start the mixing equipment at the same time, stir and mix these materials, wait until the mixing equipment completely mixes all the materials evenly and internally After there is no aggl...

Embodiment 3

[0116] A shale gas well drilling waste oil-based mud solidification material, the raw materials of which include by weight: 50% oil-based mud, 23.8% sand, 4% curing agent, 18% water, and 4.2% flocculant.

[0117] S1. First, prepare all the materials and put them aside, and then filter the materials that need to be tested. The materials used for the test are: 50% oil-based mud, 23.8% sand, 4% curing agent, and 18% water , flocculant 4.2%, and then filter the impurities and larger lumps through the screening method to make the material more pure and clean, then weigh according to different formulas, weigh out the corresponding proportion, and then sequentially code put away;

[0118] S2. Put various materials into the stirring and mixing equipment in sequence according to the proportioning order, start the mixing equipment at the same time, stir and mix these materials, wait until the mixing equipment completely mixes all the materials evenly and internally After there is no ag...

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Abstract

The invention discloses a shale gas well drilling waste oil-based mud curing material. The shale gas well drilling waste oil-based mud curing material comprises the following raw materials in percentage by weight: 20-65% of oil-based mud, 10-50% of sand, 0.2-5% of a curing agent, 10-20% of water and 0.1-5% of a flocculating agent. The shale gas well drilling waste oil-based mud curing material is prepared from the following raw materials in parts by weight: 20-65% of oil-based mud, 10-50% of sand, 0.2-5% of a curing agent, 10-20% of water and 0.1-5% of a flocculating agent. The type of the curing material is adjusted at any time according to requirements by adopting the standard of the method. The setting speed of each material is increased when the oil-based mud curing material is processed, the total processing speed is greatly reduced, the mixing speed is increased, the time for mixing each material by a mixing device is shortened, the mixing device is not easy to damage, and the working speed for processing the oil-based mud curing material by a worker is increased.

Description

technical field [0001] The invention relates to the technical field of solidified material preparation, in particular to a shale gas well drilling waste oil-based mud solidified material. Background technique [0002] Solidification technology refers to the process of adding a curing agent to waste to convert it into an immobile solid or form a compact solid. The cured product is a compact solid with a complete structure. This solid can be transported in a convenient size without any auxiliary container. , piling mud, tunnel construction mud, etc.) dehydration, drying and curing treatment, can achieve the effect of sludge reduction, high-strength curing and waterproof. During treatment, sludge and sludge can be treated in an environmentally friendly manner. [0003] Compared with conventional natural gas, the development of shale gas has the advantages of long mining life and long production cycle. Most of the shale gas produced is widely distributed, thick, and generally ...

Claims

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Application Information

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IPC IPC(8): C02F11/00
CPCC02F11/008
Inventor 黄振华张烨程玉刚周洵徐铫吴俊桦蒙春余华文
Owner CHONGQING INST OF GEOLOGY & MINERAL RESOURCES
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