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Solid foaming drainage agent composition as well as preparation method and application thereof

A foam drainage agent and composition technology, which are applied in the directions of drilling compositions, chemical instruments and methods, can solve the problems of difficulty in filling liquid foam drainage agent on site, insufficient temperature resistance, and gas well production reduction, etc. Temperature performance, good temperature resistance, enhanced liquid carrying capacity

Active Publication Date: 2018-01-12
CHINA PETROLEUM & CHEM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, sodium lauryl sulfate contains sulfate ester bonds, and its temperature resistance is insufficient.
[0008] With the intensification of gas field exploitation, gas field water production has become a key issue restricting the normal production of gas wells. However, the existing high-temperature deep gas wells have excessive liquid accumulation during the development process, which leads to gas well production reduction or even stop spraying and on-site liquid foam drainage agent There are problems such as difficulties in filling, so it is of great significance to develop efficient drainage methods

Method used

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  • Solid foaming drainage agent composition as well as preparation method and application thereof
  • Solid foaming drainage agent composition as well as preparation method and application thereof
  • Solid foaming drainage agent composition as well as preparation method and application thereof

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preparation example Construction

[0047] In order to solve the above-mentioned second technical problem, the preparation method of the solid foam drainage composition used in the present invention, when the binder is not equal to 0 parts, the preparation method of the foam drainage composition comprises the following steps:

[0048] (1) uniformly mixing the alkylamine polyether benzene sulfonate, the long-chain polyether nitrogen-containing compound, and the solid filler according to the required parts by mass to obtain a mixture;

[0049] (2) Add water to the binder until it is completely dissolved to obtain a binder solution;

[0050] (3) mixing the mixture obtained in step (1) and the adhesive solution obtained in step (2) uniformly, and pressing and molding to obtain a solid foam drainage rod;

[0051] When the binder is equal to 0 parts, the preparation method of the foam drainage composition comprises the following steps: mixing the alkylamine polyether benzene sulfonate, the long-chain polyether nitroge...

Embodiment 1

[0055] (1) Under normal temperature and pressure, 10 grams of alkylamine polyether benzene sulfonate, 20 grams of long-chain polyether nitrogen-containing compound, and 30 grams of sodium sulfate are uniformly mixed to obtain a mixture;

[0056] (2) Add 0.1 gram of polyethylene glycol with 1 gram of water and stir until completely dissolved to obtain a binder solution;

[0057] (3) The mixture obtained in step (1) and the binder solution obtained in step (2) were uniformly mixed, and pressed to form a solid foam drainage stick FS-1, whose component structure is shown in Table 1.

Embodiment 2

[0059] (1) Under normal temperature and pressure, 5 grams of alkylamine polyether benzene sulfonate, 50 grams of long-chain polyether nitrogen-containing compound, 70 grams of sodium sulfate, and 30 grams of urea are mixed uniformly to obtain a mixture;

[0060] (2) Add 0.5 g of polyethylene glycol with 2 g of water and stir until completely dissolved to obtain a binder solution;

[0061] (3) The mixture obtained in step (1) and the binder solution obtained in step (2) were mixed evenly, and pressed to form a solid foam drainage rod FS-2, whose component structure is shown in Table 1.

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Abstract

The invention relates to a solid foaming drainage agent composition as well as a preparation method and application thereof and belongs to the technical field of petrochemical engineering. The solid foaming drainage agent composition disclosed by the invention comprises the following components in parts by mass: 1 part of alkylamine polyether benzene sulfonate, 0.1-50 parts of long-chain polyethernitrogen-containing compounds, 0.2-100 parts of solid fillers and 0-0.5 part of an adhesive. By virtue of the technical scheme in the invention, the solid foaming drainage agent is subjected to foaming performance test according to SY / T 6465-2000 Foaming Agent Evaluation Method for Foaming Drainage Gas Recovery, the foaming height is more than 200mm in 0-200000 mg / L of salinity brine, the liquorcarrying capacity is more than 150mL, and when aged at a high temperature of 180 DEG C for 24 hours, the change ratio of the foaming height and drainage performance of the foam is less than 5%. The solid foaming drainage agent composition has excellent temperature resistance, salt resistance, foaming performance and liquor carrying capacity, and excellent technical effects are achieved.

Description

technical field [0001] The invention relates to a solid foam drainage composition and a preparation method thereof, in particular to a high-temperature deep well solid foam drainage composition and a preparation method thereof, and belongs to the technical field of petrochemical industry. Background technique [0002] Foam drainage gas recovery is a drainage gas recovery technology developed rapidly at home and abroad in recent years. It has the advantages of simple equipment, convenient construction, low cost, wide range of applicable well depths, and does not affect the normal production of gas wells. Foam drainage is to inject foam drainage agent into the well through the tubing or tubing annulus, and generate foam with certain stability under the agitation of the air flow. The liquid phase deposited by slippage in the pipe turns into foam, which changes the relative density of the fluid in the lower part of the pipe, and the continuously produced gas phase displaces the ...

Claims

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Application Information

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IPC IPC(8): C09K8/584C09K8/60C09K8/94
Inventor 林永茂李应成张国东何秀娟刘通沈之芹陈海龙马俊伟邹东来裘鋆
Owner CHINA PETROLEUM & CHEM CORP
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