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Nanometer multifunctional cleanup additive for oil field drilling fluid and preparation method thereof

An oilfield drilling and multifunctional technology, which is applied in the field of nanometer multifunctional drainage aids for oilfield drilling fluids and its preparation, can solve the problems of unfavorable modern oilfield operations, increased workload, and increased costs, and achieve the reduction of on-site operation steps, Accessible, easy-to-operate effects

Active Publication Date: 2022-01-21
九江蓝卓新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Under normal circumstances, oil field operations need to add demulsifiers, oil washing agents, drainage aids and other additives together, which will lead to complex procedures and increased workload during operation, and increase costs, which is not conducive to modern oil field operations

Method used

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  • Nanometer multifunctional cleanup additive for oil field drilling fluid and preparation method thereof
  • Nanometer multifunctional cleanup additive for oil field drilling fluid and preparation method thereof
  • Nanometer multifunctional cleanup additive for oil field drilling fluid and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0025] This embodiment provides a technical solution: a nanometer multifunctional drainage aid for oilfield drilling fluid and its preparation method. The preparation method includes the following steps:

[0026] The first step, prepare nano demulsifier:

[0027] S1. Add 5 parts of butyl acrylate to 0.25 parts of chain transfer agent AMSD, mix and use the mixture (referred to as component A) for later use. 10 parts of styrene and 0.3 parts of chain transfer agent AMSD (referred to as component B) of hydrophobic monomer, 3.5 parts of N-(3-dimethylaminopropyl) methacrylamide and 0.3 part of chain transfer agent of hydrophilic monomer The mixed mixture of the transfer agent AMSD (referred to as component C), and the mixed mixture of 1.5 parts of AMPS and 0.25 part of chain transfer agent AMSD (referred to as component D) are ready for use.

[0028] S2. Add a certain amount of water, 0.15 parts of acetone and 0.32 parts of emulsifier sodium dodecylsulfonate into the four-necked f...

Embodiment 2

[0041] This embodiment provides a technical solution: a nanometer multifunctional drainage aid for oilfield drilling fluid and its preparation method, the preparation method comprising the following steps

[0042] Step 1, self-made nano demulsifier:

[0043] S1. Add 5 parts of butyl acrylate to 0.25 parts of chain transfer agent AMSD, mix and use the mixture (referred to as component A) for later use. 12.5 parts of styrene and 0.3 parts of chain transfer agent AMSD (referred to as component B) of hydrophobic monomer, 2.5 parts of N-(3-dimethylaminopropyl) methacrylamide and 0.3 part of chain transfer agent of hydrophilic monomer The mixed mixture of transfer agent AMSD (referred to as component C), and the mixed mixture of 1 part of AMPS and 0.25 part of chain transfer agent AMSD (referred to as component D) are ready for use.

[0044] S2. Add a certain amount of water, 0.15 parts of acetone and 0.32 parts of emulsifier sodium dodecylsulfonate into the four-necked flask, stir...

Embodiment 3

[0057] This embodiment provides a technical solution: a nanometer multifunctional drainage aid for oilfield drilling fluid and its preparation method. The preparation method includes the following steps:

[0058] Step 1, self-made nano demulsifier:

[0059] S1. Add 5 parts of butyl acrylate to 0.25 parts of chain transfer agent AMSD, mix and use the mixture (referred to as component A) for later use. 10 parts of styrene and 0.3 parts of chain transfer agent AMSD (referred to as component B) of hydrophobic monomer, 3.5 parts of N-(3-dimethylaminopropyl) methacrylamide and 0.3 part of chain transfer agent of hydrophilic monomer The mixed mixture of the transfer agent AMSD (referred to as component C), and the mixed mixture of 1.5 parts of AMPS and 0.25 part of chain transfer agent AMSD (referred to as component D) are ready for use.

[0060] S2. Add a certain amount of water, 0.15 parts of acetone and 0.32 parts of emulsifier sodium dodecylsulfonate into the four-necked flask, ...

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Abstract

The invention is suitable for the technical field of oil exploitation, and provides a nano multifunctional cleanup additive for oil field drilling fluid and a preparation method thereof. Raw materials of the product are easy to obtain; 2-acrylamide-2-methylpropanesulfonic acid and N-(3-dimethylaminopropyl) methacrylamide are introduced into a self-made demulsifier; surfactants such as fluorocarbon and double ions are introduced into the compounded cleanup additive; and through reasonable formula design, the oil washing rate and the adsorbability are effectively improved, and better performance is helped to be obtained. According to the invention, the monomer with excellent performance and the surfactant are compounded, so that the performance of the auxiliary agent can be improved. The addition amount is reduced, the problem of single function of a common assistant is solved, the operation is simple and convenient during oil field operation, the on-site operation steps are reduced, the workload of constructors is reduced, and the use cost of enterprises is remarkably reduced.

Description

technical field [0001] The invention relates to the technical field of petroleum exploitation, in particular to a nanometer multifunctional drainage aid for oil field drilling fluid and a preparation method thereof. Background technique [0002] With the continuous deepening of oil and gas reservoir exploitation, in order to exploit more and deeper oil and gas, the transformation of ultra-low permeability reservoirs has increasingly become the main development field. important role. A number of different drainage aids have been reported to drain post-fracture fluids and reduce phase sealing. [0003] Under normal circumstances, oil field operations need to add demulsifiers, oil detergents, drainage aids and other additives together, which will lead to complicated procedures, increased workload and increased costs during operation, which is not conducive to modern oilfield operations. Contents of the invention [0004] The invention provides a nanometer multifunctional dr...

Claims

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Application Information

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IPC IPC(8): C09K8/035C09K8/03C09K8/04C08F212/08C08F220/18C08F220/60C08F220/58
CPCC09K8/035C09K8/03C09K8/04C08F212/08C09K2208/10C08F220/1804C08F220/60C08F220/585
Inventor 李奎汤永昌胡涛
Owner 九江蓝卓新材料科技有限公司
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