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Micron-sized water-swelling suspension liquid modifying and flooding agent and preparation method thereof

A micron-scale, suspension technology, applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve problems such as easy to generate dust, difficult to mix and mix

Active Publication Date: 2015-04-08
DAGANG OIL FIELD GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The problem to be solved by the present invention is to provide a micron-scale water-swelling suspension regulating agent and a preparation method thereof, which overcomes the problems that the existing micron-scale water-swelling substance-displacing agent is easy to generate dust and difficult to mix when it is currently used. Insufficient mixing evenly, and also has the function of sedimentation and profile control

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A kind of micron water swelling body suspension regulating and displacing agent, is made up of the raw material of following weight,

[0045] Calcium chloride 350g;

[0046] Dodecyltrimethylammonium chloride 5g;

[0047] Simethicone oil 0.5g;

[0048] Micron water swelling 800g;

[0049] Water 1000g.

[0050] Water is used as the base liquid of the suspension, which is tap water meeting the national standard GB5749-85.

[0051] A method for preparing the micron-scale water-swelling suspension as described above, comprising the following steps,

[0052] 1) At room temperature, add 1000g of tap water to a 2000mL beaker, start stirring, and the stirring speed is 160 rpm;

[0053] 2) Add 0.5g of simethicone oil to the beaker and stir for 5 minutes;

[0054] 3) Add 5g dodecyltrimethylammonium chloride into the beaker, stir for 5 minutes;

[0055] 4) Slowly add 350g of calcium chloride to the beaker, preferably without producing obvious dust, and stir for 15 minutes; ...

Embodiment 2

[0059] A kind of micron water swelling body suspension regulating and displacing agent, is made up of the raw material of following weight,

[0060] Calcium chloride 650g;

[0061] Dodecyltrimethylammonium chloride 20g;

[0062] Simethicone 1g;

[0063] Micron water swelling 500g;

[0064] Water 1000g.

[0065] Water is used as the base liquid of the suspension, which is tap water meeting the national standard GB5749-85.

[0066] A method for preparing the micron-scale water-swelling suspension as described above, comprising the following steps,

[0067]1) At room temperature, add 1000g of tap water to a 2000mL beaker, start stirring, and the stirring speed is 200 rpm;

[0068] 2) Add 1g of simethicone oil to the beaker and stir for 10 minutes;

[0069] 3) Add 20g dodecyltrimethylammonium chloride into the beaker, stir for 10 minutes;

[0070] 4) Slowly add 650g of calcium chloride to the beaker, preferably without producing obvious dust, and stir for 30 minutes;

[00...

Embodiment 3

[0074] A kind of micron water swelling body suspension regulating and displacing agent, is made up of the raw material of following weight,

[0075] Calcium chloride 500g;

[0076] Dodecyltrimethylammonium chloride 15g;

[0077] Simethicone oil 0.8g;

[0078] Micron water swelling 600g;

[0079] Water 1000g.

[0080] Water is used as the base liquid of the suspension, which is tap water meeting the national standard GB5749-85.

[0081] A method for preparing the micron-scale water-swelling suspension as described above, comprising the following steps,

[0082] 1) At room temperature, add 1000g of tap water to a 2000mL beaker, start stirring, and the stirring speed is 300 rpm;

[0083] 2) Add 0.8g of simethicone oil to the beaker and stir for 10 minutes;

[0084] 3) Add 15g dodecyltrimethylammonium chloride into the beaker, stir for 10 minutes;

[0085] 4) Slowly add 500g of calcium chloride to the beaker, preferably without producing obvious dust, and stir for 30 minute...

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Abstract

The invention provides a micron-sized water-swelling suspension liquid modifying and flooding agent and a preparation method thereof. The modifying and flooding agent comprises the following raw materials in parts by weight: 50-650 parts of calcium chloride, 5-20 parts of dodecyl trimethyl ammonium chloride, 0.5-1 part of dimethicone, 500-800 parts of a micron-sized water-swelling agent, and 1,000 parts of water. The micron-sized water-swelling suspension liquid modifying and flooding agent provided by the invention is free of dust when used on the spot, and is relatively small in effects on health of operating personnel and the environment; compared with an existing product prepared by an emulsion polymerization method, the cost of the micron-sized water-swelling suspension liquid modifying and flooding agent prepared from a saline solution is reduced by over 24%; and the micron-sized water-swelling suspension liquid modifying and flooding agent has the effects of participation and profile control.

Description

technical field [0001] The invention relates to an oilfield chemical treatment agent, in particular to a micron-scale water-swelling suspension fluid regulating and flooding agent and a preparation method thereof. Background technique [0002] A well that directly produces oil in an oil field is called an oil well. The wells used to inject water into the formation to increase or stabilize the production of oil wells are called water injection wells, and most of the injected water is formation water produced from oil wells. Due to various reasons, in the process of water flooding development, the water injected from the wells quickly channeled to the oil wells along the channeling channel, that is, the large-pore high-permeability zone, resulting in low oil displacement efficiency, and the oil wells produced less oil and more water. [0003] Usually gel, inorganic precipitation, or granular agents are used to inject into water wells to block water channeling, play the role o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/508
CPCC09K8/5086C09K2208/10
Inventor 葛红江雷齐玲杨卫华程静雷齐松杨敏
Owner DAGANG OIL FIELD GRP
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