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Drilling cutting treatment agent and preparation method thereof

A technology for drilling cuttings and treatment agents, applied in the field of drilling cuttings treatment agents and their preparation, can solve the problems of poor harmless treatment effects of chemical treatment agents and heavy metal ions, and achieve low production costs, stable performance, and increased performance Effect

Active Publication Date: 2019-10-25
四川广阳环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defect that the existing drilling cuttings treatment agent has poor effect on the harmless treatment of various chemical treatment agents and heavy metal ions in the drilling cuttings, and proposes a drilling cuttings treatment agent and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034](1) Prepare 0.6 parts of tert-butanol peroxide with 60% ethanol aqueous solution to make a mixed solution A with a mass fraction of 15%;

[0035] (2) Add 0.4 parts of allyl glycidyl ether to 300 parts of water and mix evenly, then add 40 parts of chlorosilane, and carry out hydrolysis reaction at a temperature of 20°C for 20 minutes. After the hydrolysis is completed, a mixed solution B is obtained ;

[0036] (3) Add 13 parts of aluminum sulfate and 6 parts of iron sulfate to the mixed solution B, stir and dissolve to obtain the mixed solution C;

[0037] (4) Add mixed solution A to mixed solution C at a speed of 80ml / min, and carry out oxidation and co-condensation reaction for 8 hours under the conditions of stirring speed of 50r / min and temperature of 40°C to obtain solution D;

[0038] (5) After the solution D was filtered, it was dried at a temperature of 80°C to obtain a drilling cuttings treatment agent with a water content of 8%.

Embodiment 2

[0040] (1) Prepare 0.4 parts of tert-butanol peroxide with 50% by volume methanol aqueous solution to form a mixed solution A with a mass fraction of 1%;

[0041] (2) Add 0.3 parts of diethylene glycol monobutyl ether to 1000 parts of water and mix evenly, then add 35 parts of chlorosilane, and carry out hydrolysis reaction at a temperature of 20°C for 30 minutes. After the hydrolysis is completed, a mixed Solution B;

[0042] (3) Add 17 parts of aluminum chloride and 4 parts of ferric chloride to the mixed solution B, stir and dissolve to obtain the mixed solution C;

[0043] (4) Add mixed solution A to mixed solution C at a speed of 100ml / min, and perform oxidation and co-condensation reaction for 6 hours at a stirring speed of 40r / min and a temperature of 40°C to obtain solution D;

[0044] (5) After the solution D was filtered, it was dried at a temperature of 70°C to obtain a drilling cuttings treatment agent with a water content of 12%.

Embodiment 3

[0046] (1) Prepare 0.4 parts of tert-butanol peroxide with 80% ethanol aqueous solution to make a mixed solution A with a mass fraction of 30%;

[0047] (2) Add 0.2 parts of fatty alcohol polyoxyethylene ether to 1500 parts of water and mix evenly, then add 30 parts of chlorosilane, and carry out hydrolysis reaction at 20°C for 30 minutes. After the hydrolysis is completed, a mixed solution B is obtained ;

[0048] (3) Add 20 parts of aluminum nitrate and 8 parts of ferric nitrate to the mixed solution B, stir and dissolve to obtain the mixed solution C;

[0049] (4) Add mixed solution A to mixed solution C at a rate of 50ml / min, and carry out oxidation and co-condensation reaction for 12 hours at a stirring speed of 65r / min and a temperature of 20°C to obtain solution D;

[0050] (5) After the solution D was filtered, it was dried at a temperature of 90°C to obtain a drilling cuttings treatment agent with a water content of 5%.

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Abstract

The invention discloses a drilling cutting treatment agent and a preparation method thereof. The treatment agent is prepared from the following raw materials in parts by weight: 10-20 parts of aluminum salts, 3-8 parts of iron salts, 30-40 parts of chlorosilane, 0.2-0.5 part of steric hindrance agent, 0.4-0.8 part of oxidant and 100-1500 parts of water; and the drilling cutting treatment agent isan iron aluminum silicate polymer which is produced by the copolycondensation reaction using high activity silicic acids, aluminum ions and iron ions under the action of the steric hindrance agent andthe oxidant, and provided with a three-dimensional structure. The polymer can not only effectively flocculate various particles in drilling cuttings, but also react with various chemical treatment agents in the drilling cuttings to generate harmless precipitates; and heavy metal ions in the drilling cuttings can further be absorbed and purified to form pores with inert crystals embedded in the drilling cuttings, and thus the compactness and compressive strength of the cuttings are greatly enhanced. According to the drilling cutting treatment agent, the surface hardness of treated cuttings isincreased, the recovery and utilization of the drilling cuttings are convenient, and harmless treatment and recovery of the drilling cuttings are achieved.

Description

technical field [0001] The invention relates to the field of environmental protection materials, in particular to a drilling cuttings treatment agent and a preparation method thereof. Background technique [0002] Drilling cuttings produced in the process of oil and gas exploration and development are wastes discharged from the solid control system with the drilling fluid during the drilling process. Sewage, dirty oil and drilling cuttings, etc., also contain heavy metals such as mercury, copper, arsenic, chromium, zinc, lead, etc., which are the main pollutants produced in the process of oil and gas exploration and development, with high pH, ​​high COD, high stability, High salt content, poor biodegradability and other characteristics, direct discharge is more harmful to the ecological environment. Improper disposal and excessive discharge of drilling cuttings can cause serious pollution of various environmental media such as soil, surface water and groundwater. In order ...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/00C02F101/20C02F103/10
CPCC02F1/00C02F1/285C02F1/5245C02F2101/20C02F2103/10
Inventor 苏泽模许保云艾波江滔陈茂霞舒琦曹旭原胡泽阳
Owner 四川广阳环保科技有限公司
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