Preparation of nanometer microemulsion and application of nanometer microemulsion in improvement of gas production rate of gas field

A nano-micro-emulsion and emulsifier technology, applied in drilling compositions, chemical instruments and methods, etc., can solve the problem in a short time, only about a year, and at most 3-5 years, without self-spraying ability , lack of natural energy and other problems, to achieve the effect of favorable peeling, low loss of surface activity, and reduction of mining costs

Inactive Publication Date: 2020-05-01
郑州洁灵科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In general, some oil fields with insufficient natural energy have no self-spraying ability, and some have self-spraying ability, but the self-spraying period is relatively short, only about one year, and the most is no more than 3 to 5 years. The production life of the oil field will last for 20 to 30 years, so most of the crude oil in the oil layer is extracted by artificial lift

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The preparation of the nano-microemulsion of the present embodiment, by weight percentage, this nano-micro-emulsion comprises the following components:

[0043] (1) 35 parts of oily solvent;

[0044] (2) 20 parts of water-soluble monomer;

[0045] (3) 5 parts of cationic surfactant;

[0046] (4) 3 parts of anionic-nonionic surfactants;

[0047] (5) 1 part of lipophilic emulsifier;

[0048] (6) 0.5 parts of hydrophilic emulsifier;

[0049] (7) 0.3 parts of surfactant synergist;

[0050] And the preparation of above-mentioned nano microemulsion comprises the steps:

[0051] (a) Oil phase preparation: add cationic surfactant, lipophilic emulsifier and surface active synergist respectively into oily solvent, stir evenly to obtain oil phase;

[0052] (b) Preparation of water phase: Add hydrophilic emulsifier to water-soluble monomer, stir evenly to form a solution, then add anionic-nonionic surfactant, stir until completely dissolved, and obtain water phase;

[0053] ...

Embodiment 2

[0062] The preparation of the nano-microemulsion of the present embodiment, by weight percentage, this nano-micro-emulsion comprises the following components:

[0063] (1) 55 parts of oily solvent;

[0064] (2) 40 parts of water-soluble monomer;

[0065] (3) 10 parts of cationic surfactant;

[0066] (4) 6 parts of anionic-nonionic surfactants;

[0067] (5) 4 parts of lipophilic emulsifier;

[0068] (6) 1.5 parts of hydrophilic emulsifier;

[0069] (7) 0.8 parts of surfactant synergist;

[0070] And the preparation of above-mentioned nano microemulsion comprises the steps:

[0071] (a) Oil phase preparation: add cationic surfactant, lipophilic emulsifier and surface active synergist respectively into oily solvent, stir evenly to obtain oil phase;

[0072] (b) Preparation of water phase: Add hydrophilic emulsifier to water-soluble monomer, stir evenly to form a solution, then add anionic-nonionic surfactant, stir until completely dissolved, and obtain water phase;

[0073] ...

Embodiment 3

[0082] The preparation of the nano-microemulsion of the present embodiment, by weight percentage, this nano-micro-emulsion comprises the following components:

[0083] (1) 45 parts of oily solvent;

[0084] (2) 30 parts of water-soluble monomer;

[0085] (3) 7.5 parts of cationic surfactant;

[0086] (4) 4.5 parts of anionic-nonionic surfactants;

[0087] (5) 2.5 parts of lipophilic emulsifier;

[0088] (6) 1 part of hydrophilic emulsifier;

[0089] (7) 0.6 parts of surfactant synergist;

[0090] And the preparation of above-mentioned nano microemulsion comprises the steps:

[0091] (a) Oil phase preparation: add cationic surfactant, lipophilic emulsifier and surface active synergist respectively into oily solvent, stir evenly to obtain oil phase;

[0092] (b) Preparation of water phase: Add hydrophilic emulsifier to water-soluble monomer, stir evenly to form a solution, then add anionic-nonionic surfactant, stir until completely dissolved, and obtain water phase;

[00...

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Abstract

The invention relates to the technical field of oil and gas exploitation, in particular to preparation of a nanometer microemulsion and application of the nanometer microemulsion in improving the gasproduction rate of a gas field. The nanometer microemulsion comprises the following components: 35 to 55 parts of an oil-based solvent, 20 to 40 parts of a water-soluble monomer, 5 to 10 parts of a cationic surfactant, 3 to 6 parts of an anionic-nonionic surfactant, 1 to 4 parts of a lipophilic emulsifier, 0.5 to 1.5 parts of a hydrophilic emulsifier and 0.3 to 0.8 part of a surface active synergist. The preparation method comprises the steps of oil phase preparation, water phase preparation, an oil phase-water phase mixed reaction and the like. The nanometer microemulsion can form ultralow interfacial tension with oil gas, so cohesion between the oil gas is effectively overcome, outflow of the oil gas is facilitated, and the gas production rate of a gas field is greatly increased; in addition, the microemulsion is not prone to adsorption and elution in the exploitation process of the gas field, surface activity loss is low, and therefore, oil gas production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of oil and gas exploitation, in particular to the preparation of a nano-microemulsion and its application in improving gas production in gas fields. Background technique [0002] With the increase of the world's energy demand, the rational development and utilization of oil and gas has attracted great attention, and the requirements for the amount and efficiency of oil and gas extraction are also getting higher and higher. Realizing the efficient exploitation of oil and gas resources not only has practical significance for increasing crude oil production, but also has important strategic significance. [0003] At present, oil and gas extraction is the process of extracting oil and natural gas buried in underground oil layers from the ground. The way oil and gas are extracted from the ground to the surface can be divided into self-injection and artificial lift according to whether artificial energy needs to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F112/14C08F212/14C08F220/04C08F120/04C08F2/26C08F2/30C08F2/28C09K8/584
CPCC08F112/14C08F212/14C08F220/04C08F120/04C08F2/26C08F2/30C08F2/28C09K8/584
Inventor 张星杰
Owner 郑州洁灵科技有限公司
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