Anti-cracking drilling fluid rock debris curing agent and use method thereof

A curing agent and drilling fluid technology, applied in the field of environmental protection engineering materials and cuttings curing agent, can solve the problems of difficult removal of organics and heavy metals, high cost, cuttings curing agent cost, etc. The effect of preventing cracks

Pending Publication Date: 2021-03-16
张夏艇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the technical problems in the prior art that the components are complex, the preparation procedure of the curing agent is complex, the cost of the raw materials used is high, and the organic matter and heavy metals in the cuttings seep with water, causing environmental pollution, the present invention provides an anti-cracking drilling Liquid cuttings curing agent, by replacing the high-cost cement, using construction waste to turn waste into treasure, not only solves the problem of construction waste disposal, but also solves the problem of the cost of cuttings curing agent, and the cuttings curing agent used through The specific formula solves the problem of easy cracking of solid cuttings curing agent, and solves the problem of difficult removal of organic matter and heavy metals in cuttings curing agent by introducing organic heavy metal chelating agent, and has wide applicability in the field of soil curing

Method used

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  • Anti-cracking drilling fluid rock debris curing agent and use method thereof
  • Anti-cracking drilling fluid rock debris curing agent and use method thereof
  • Anti-cracking drilling fluid rock debris curing agent and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: Anti-cracking drilling fluid cuttings curing agent of the present invention

[0032] The cuttings solidifying agent of the invention contains slag powder, desulfurized gypsum, β-type hemihydrate gypsum, fly ash, construction waste powder, potassium salt or ammonium salt and an activator. The slag powder used is the molten slag with calcium aluminosilicate as the main component obtained when the ironworks smelt pig iron in the blast furnace.

[0033] Specifically, the formula used in this embodiment is as follows:

[0034]

[0035]

[0036]In the above formulations, all formulations also added 2 kg of dithiocarbamate with a concentration of 0.1%. The construction waste powder used is different in formulas 1, 6, 7 and 8. The construction waste powder (1) in formula 1 is 18kg cement fine powder and 17kg red brick fine powder. The construction waste powder (2) in formula six is ​​15kg cement fine powder and 15kg red brick fine powder. The construction...

Embodiment 2

[0037] Embodiment 2: The use method of the anti-cracking drilling fluid cuttings curing agent of the present invention

[0038] The invention provides a method for using an anti-cracking drilling fluid cuttings curing agent, comprising the following steps:

[0039] (1) Mix the raw materials according to the ratio and grind them thoroughly to form a curing agent product with a fineness of about 300 mesh.

[0040] (2) Measure the water content of the target cuttings to be used, and determine the optimal water addition amount according to the water content of the cuttings, so that the cuttings are easy to mix and not too thin to solidify or too dry to mix evenly.

[0041] (3) Add water to the curing agent product in step (1) and mix it with cuttings, then use an excavator to repeatedly knead the mixture so that the curing agent and cuttings are in full contact.

[0042] In the present invention, in the step (3), 80-100KG curing agent is added per cubic meter and fully stirred. ...

Embodiment 3

[0043] Example 3: Performance test of anti-cracking drilling fluid cuttings curing agent

[0044] When detecting the anti-cracking drilling fluid cuttings solidifying agent performance of the present invention, adopt following detection method:

[0045] (1) Chemical Oxygen Demand (COD); determined according to GB / T11914 "Determination of Chemical Oxygen Demand by Potassium Dichromate Method".

[0046] (2) pH value; determined according to the national standard GB / T6920 "Glass Electrode Method for Determination of pH Value of Water Quality".

[0047] (3) Chromaticity: Measured according to the national standard GB / T11903 "Determination of Water Quality Chromaticity by Dilution Multiple Method".

[0048] (4) Petroleum: determined according to the national standard GB / T16488 "Determination of Water Quality Petroleum and Animals and Plants by Infrared Photometry".

[0049] (5) Curing strength; refer to the technical index of cement JX-GH.

[0050] The test results are as follow...

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PUM

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Abstract

The invention provides an anti-cracking drilling fluid rock debris curing agent. The curing agent comprises the following materials: slag powder, desulfurized gypsum, beta-hemihydrate gypsum, fly ash,construction waste powder, sylvite or ammonium salt, an excitant and an organic heavy metal chelating agent. According to the anti-cracking drilling fluid rock debris curing agent and the using method, the curing agent is added into the target rock debris, so that the chemical oxygen demand (COD), the pH value, the chromaticity and petroleum substances in the rock debris are all improved. The curing strength of the rock debris is improved by 6-9 times, high-cost materials such as cement do not need to be added, the rock debris can be prevented from cracking after being cured, and the method is an environment-friendly and low-cost curing technology.

Description

technical field [0001] The invention belongs to the field of environmental protection engineering materials, and specifically the invention belongs to the field of cuttings curing agents. Background technique [0002] Curing agent, also known as hardener, curing agent or stabilizer, is a kind of substance or mixture that promotes or controls the curing reaction. Resin curing is a chemical reaction such as condensation, ring closure, addition or catalysis, which causes irreversible changes in thermosetting resins. process, curing is accomplished by adding a curing agent. Cuttings curing agent is a curing agent for oil drilling cuttings. [0003] Oil drilling fluid has become the "blood" of oil drilling. At present, water-based drilling fluid is mainly composed of chemical additives with various functions in water. During the drilling process, the formation that adheres to water-based drilling fluid and various treatment agents The rock is carried out of the ground by the wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B18/16C04B24/16
CPCC04B28/147C04B18/16C04B24/16C04B2111/00775C04B2201/50C04B18/141C04B22/145C04B18/08C04B22/08C04B22/147C04B22/064C04B22/062C04B22/10Y02W30/91
Inventor 付炜张夏艇张俊锋
Owner 张夏艇
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