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A kind of oil-resistant and salinity-resistant solid foaming agent and preparation method thereof

A technology of resistance to mineralization and foaming agent, which is applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems of inconvenient carrying, etc., and achieve the effect of convenient carrying, new ingredients, and good liquid-carrying ability

Inactive Publication Date: 2017-10-27
NINGXIA ZHONGKE KANGYU CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above foaming agents are mainly presented in the form of liquid, which is inconvenient to carry

Method used

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  • A kind of oil-resistant and salinity-resistant solid foaming agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The solid foaming agent of the present invention is composed of the following raw materials in mass percentage: 30% of AES, 10% of OP-10, 0.2% of polyacrylamide, 10% of thiourea and 49.8% of paraffin.

[0021] The preparation method of the solid foaming agent of the present invention comprises the following steps: (1) adding AES and OP-10 in a beaker, stirring evenly, adding polyacrylamide and paraffin, stirring again; (2) stirring the above Put the raw material solution into a water bath, heat it at 70°C for 3 hours, take it out, and stir it while cooling; (3) When the raw material solution is cooled to room temperature and becomes powdery, pour it into a mold and extrude it to obtain oil-resistant and resistant The finished product of salinity solid foaming agent.

[0022] Preparation of mineralized water with a certain concentration: weigh 12.5gNaCl and 2.5gCaCl 2 Dissolve it in a clean small beaker, then pour it into a 250ml volumetric flask and make it into an aqu...

Embodiment 2

[0026] The solid foaming agent of the present invention is composed of the following raw materials in mass percentage: 30% of AES, 10% of OP-10, 0.2% of polyacrylamide, 10% of thiourea and 49.8% of paraffin.

[0027] The preparation method of the solid foaming agent of the present invention comprises the following steps: (1) adding AES and OP-10 in a beaker, stirring evenly, adding polyacrylamide and paraffin, stirring again; (2) stirring the above Put the raw material solution in a water bath, heat it at 70°C for 3 hours, take it out, and stir it while cooling; (3) When the raw material solution is cooled to room temperature and becomes powdery, pour it into a tablet machine and extrude it to obtain Finished product of oil-resistant and salinity-resistant solid foaming agent.

[0028] Preparation of mineralized water with a certain concentration: weigh 1.25g NaHCO 3 Dissolve it in a clean small beaker, then pour it into a 250ml volumetric flask and make it into an aqueous so...

Embodiment 3

[0032] The solid foaming agent of the present invention is composed of the following raw materials in mass percentage: 30% of AES, 10% of OP-1, 0.2% of polyacrylamide, 10% of thiourea and 49.8% of paraffin.

[0033] The preparation method of the solid foaming agent of the present invention comprises the following steps: (1) adding AES and OP-10 in a beaker, stirring evenly, adding polyacrylamide and paraffin, stirring again; (2) stirring the above Put the raw material solution into an oven, heat it at 70°C for 3 hours, take it out, and stir it while cooling; (3) When the raw material solution is cooled to room temperature and becomes powdery, pour it into a mold and extrude it to obtain oil-resistant and resistant The finished product of salinity solid foaming agent.

[0034] Preparation of mineralized water with a certain concentration: weigh 15gNaCl and 27.5gCaCl 2 Dissolve it in a clean small beaker, then pour it into a 250ml volumetric flask and make it into an aqueous so...

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Abstract

The invention relates to an oil-resistant mineralization-degree-resistant solid foam-scrubbing agent and a preparation method thereof. The foam-scrubbing agent is prepared from the following raw materials in percentage by mass: 20-40% of AES, 5-20% of OP-10, 0.1-0.5% of polyacrylamide, 0-20% of thiourea and 40-60% of paraffin. The preparation method comprises the following specific steps: adding AES and OP-10 into a beaker, uniformly stirring, adding polyacrylamide and paraffin, stirring and mixing again, heating raw materials in a water bath until the raw materials are molten, uniformly stirring, cooling the raw materials to room temperature, pouring the raw materials into a grinding device and carrying out extrusion molding to obtain the oil-resistant mineralization-degree-resistant solid foam-scrubbing agent finished product. The foam-scrubbing agent has the beneficial effects of low cost, new ingredients, long efficacy time, safety and no toxicity, and is easy to carry and after the solid foam-scrubbing agent is subjected to performance test, the solid foam-scrubbing agent is found to have better liquid carrying capacity in various water profiles.

Description

technical field [0001] The invention relates to an oil-resistant and salinity-resistant solid foaming agent for gas wells and a preparation method thereof. Background technique [0002] With the development of water-bearing gas fields, many gas fields have entered the middle and late stages of development. At this time, due to the continuous decline of formation pressure, the edge water advances and the bottom water rises. If the water is not discharged out of the well in time, it will cause excessive fluid accumulation in the wellbore. For these water-producing gas fields, the production of formation water will affect the production of natural gas to varying degrees. If the airflow has enough energy, it will be taken out of the wellhead; if the airflow energy is insufficient, formation water will gradually accumulate in the wellbore and near the bottom of the well due to the slippage effect during the lifting process, causing serious damage to the gas well. The hazards ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/584C09K8/588
CPCC09K8/584C09K8/588
Inventor 王立国石国军李翠王辉何生龙
Owner NINGXIA ZHONGKE KANGYU CHEM