Suspension emulsion type slick water friction reducing agent and preparation method thereof

A technology of suspending emulsion and slick water, which is applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems of complex production process of slick water drag reducing agent, complicated field application operation, unfavorable popularization and use, etc., and achieve good results Appearance, fast dissolution, and the effect of reducing production and transportation costs

Inactive Publication Date: 2019-10-11
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problems that current slick water drag reducer is complicated in production process, complex on-site application and operation are not conducive to popularization and use, and provide a suspending emulsion type slick water drag reducer and its preparation method

Method used

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  • Suspension emulsion type slick water friction reducing agent and preparation method thereof
  • Suspension emulsion type slick water friction reducing agent and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] To prepare a suspension emulsion type slippery water resistance reducing agent, proceed as follows:

[0037] Step 1. Put 40kg of No. 7 white oil in a rotating reactor at 1000 rpm, and heat the No. 7 white oil in the reactor to 55°C;

[0038] Step 2: Add 1kg of organic soil as a stabilizer to the reactor, keep the temperature in the reactor at 55°C, and stir to make the organic soil completely dispersed;

[0039] Step 3: Keep the temperature of the system in the reactor at 55°C, and continue to add 2 kg of triethylene glycol monobutyl ether as a cutting agent to the reactor under stirring conditions;

[0040] Step 4. Adjust and maintain the temperature in the reactor at 55°C while maintaining the rotation speed of 1000 rpm. Slowly add 40 kg of polyacrylamide powder to the reactor. After the powder is added, continue for 10 minutes. It is anionic polyacrylamide;

[0041] Step 5. Adjust and maintain the temperature in the reactor at 50°C, slowly add 1kg of emulsifier to the reactor...

Embodiment 2

[0045] To prepare a suspension emulsion type slippery water resistance reducing agent, proceed as follows:

[0046] Step 1. Put 50kg of No. 7 white oil in a rotating reactor at 1000 rpm, and heat the No. 7 white oil in the reactor to 70°C;

[0047] Step 2: Add 3 kg of organic soil as a stabilizer to the reactor, keep the temperature in the reactor at 70°C, and stir to make the organic soil completely dispersed;

[0048] Step 3. Keep the temperature of the system in the reactor at 70°C, and continue to add 2 kg of butyrolactone as a cutting agent to the reactor under stirring conditions;

[0049] Step 4. Adjust and maintain the temperature in the reactor at 65°C while maintaining the rotation speed of 1000 rpm. Slowly add 50 kg of polyacrylamide powder to the reactor. After the powder is added, continue for 10 minutes. It is a copolymer of salt-resistant monomer and acrylamide monomer; the salt-resistant monomer is N-vinylpyrrolidone.

[0050] Step 5. Adjust and keep the temperature in ...

Embodiment 3

[0054] To prepare a suspension emulsion type slippery water resistance reducing agent, proceed as follows:

[0055] Step 1. Put 45kg of No. 7 white oil in a rotating reactor at 1000 rpm, and raise the No. 7 white oil in the reactor to 60°C;

[0056] Step 2: Add 2kg of organic soil to the reactor as a stabilizer, keep the temperature in the reactor at 60°C, and stir to make the organic soil completely dispersed;

[0057] Step 3: Keep the temperature of the system in the reactor at 60°C, and continue to add 1.5 kg of butyrolactone as a cutting agent to the reactor under stirring conditions;

[0058] Step 4. Keep the temperature in the reactor at 60°C while maintaining the rotation speed of 1000 rpm. Slowly add 45kg of polyacrylamide powder to the reactor. After the powder is added, continue for 10 minutes. The polyacrylamide is anionic Polyacrylamide

[0059] Step 5. Adjust and maintain the temperature in the reactor at 60°C. Slowly add 4kg of emulsifier to the reactor, and then keep the...

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Abstract

The invention discloses a suspension emulsion type slick water friction reducing agent and a preparation method thereof. The suspension emulsion type slick water friction reducing agent is composed of, by weight part, 35-55 parts of white oil, 0.5-3.5 parts of stabilizer, 0.5-2.5 parts of rheological modifier, 25-55 parts of polyacrylamide powder, 2.5-55 parts of emulsifier and 0.2-0.6 part of preservatives. The prepared suspension emulsion type slick water friction reducing agent has the advantages of being high in dissolving speed, friction reducing rate and compatibility, low in consumption, simple in process and the like. Compared with the prior art, the polyacrylamide powder and the white oil are simultaneously applied to the suspension emulsion type slick water friction reducing agent to increase the system dispersion effects, the solid content of the suspension emulsion type slick water friction reducing agent and the system dissolving speed, and meanwhile to reduce the production and transportation costs; the emulsifier and the preservatives are introduced to ensure good appearance and a long storage period of the suspension emulsion type slick water friction reducing agent, which accordingly is better applied to industrial production.

Description

Technical field [0001] The invention belongs to the field of petroleum development, and more specifically relates to a suspension emulsion type slippery water resistance reducing agent and a preparation method thereof. Background technique [0002] The slick water fracturing fluid system is the most commonly used fracturing fluid system for acid fracturing and shale gas fracturing at this stage. The main components of slick water fracturing fluid are a large amount of water and proppants, a small amount of surfactants, drag reducers, and clay. Stabilizers, etc. However, due to the low polymer content, the slick water fracturing fluid system has lower viscosity than the conventional cross-linked gel system and poor proppant carrying capacity. The pumping speed of slick water is usually higher, which is easy to cause turbulence and cause fracturing. The friction increases, so it is necessary to add a drag reducer to reduce the huge energy loss caused by the frictional resistance b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/68C09K8/88
CPCC09K8/68C09K8/882
Inventor 张汝生崔佳贾振福陈秋林苏建政林鑫黄志文赵梦云贺甲元
Owner CHINA PETROLEUM & CHEM CORP
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