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Polymer drag reducer for oil and gas exploitation and preparation process thereof

A preparation process and polymer technology, applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve problems affecting the drag reduction rate of drag reducers

Active Publication Date: 2021-02-23
胜利油田胜华实业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention: because of the shear degradation, after the fluid flows through a certain distance or flows through a high-shear component, it needs to supplement the drag reducer to maintain its drag reduction effect. During the process of the drag reducer, When the temperature is too high, it will also affect the drag reduction rate of the drag reducer

Method used

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  • Polymer drag reducer for oil and gas exploitation and preparation process thereof

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Comparison scheme
Effect test

Embodiment 1

[0041] A polymer drag reducer for oil and gas development, consisting of drag reducing components, film-forming components and microcrystalline wax;

[0042] The polymer drag reducer used for oil and gas development is prepared through the following steps:

[0043] The first step is to prepare the drag reducing component;

[0044] The second step, preparing the film-forming component;

[0045] The third step is to weigh the drag-reducing component and the film-forming component according to the mass ratio of 3:2, set the temperature at 100°C, heat the film-forming component and the drag-reducing component to melt, stir and mix for 50min, and then set the temperature at 60±2°C Dry to constant weight to obtain the first component, then heat the microcrystalline wax at 95±2°C until it is completely dissolved, immerse the first component in the dissolved microcrystalline wax for 10±2s, take it out, and then quickly add it to deionized water Rapidly solidify and dry to obtain a p...

Embodiment 2

[0059] A polymer drag reducer for oil and gas development, consisting of drag reducing components, film-forming components and microcrystalline wax;

[0060] The polymer drag reducer used for oil and gas development is prepared through the following steps:

[0061] The first step is to prepare the drag reducing component;

[0062] The second step, preparing the film-forming component;

[0063] The third step is to weigh the drag-reducing component and the film-forming component according to the mass ratio of 3:2, set the temperature at 120°C, heat the film-forming component and the drag-reducing component to melt, stir and mix for 55min, and then set the temperature at 60±2°C Dry to constant weight to obtain the first component, then heat the microcrystalline wax at 95±2°C until it is completely dissolved, immerse the first component in the dissolved microcrystalline wax for 10±2s, take it out, and then quickly add it to deionized water Rapidly solidify and dry to obtain a p...

Embodiment 3

[0077] A polymer drag reducer for oil and gas development, consisting of drag reducing components, film-forming components and microcrystalline wax;

[0078] The polymer drag reducer used for oil and gas development is prepared through the following steps:

[0079] The first step is to prepare the drag reducing component;

[0080] The second step, preparing the film-forming component;

[0081] The third step is to weigh the drag-reducing component and the film-forming component according to the mass ratio of 4:2, set the temperature at 140°C, heat the film-forming component and the drag-reducing component to melt, stir and mix for 60min, and then heat the mixture at 60±2°C Dry to constant weight to obtain the first component, then heat the microcrystalline wax at 95±2°C until it is completely dissolved, immerse the first component in the dissolved microcrystalline wax for 10±2s, take it out, and then quickly add it to deionized water Quickly solidify and dry to obtain a poly...

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Abstract

The invention discloses a polymer drag reducer for oil and gas exploitation. The polymer drag reducer comprises a drag reduction component, a film forming component and microcrystalline wax, the preparation process of the polymer drag reducer for oil and gas exploitation comprises the following steps: 1, preparing the drag reduction component; 2, preparing the film forming component; and 3, weighing the drag reduction component and the film forming component, heating the film forming component and the drag reduction component to be molten, stirring and mixing, drying to constant weight to obtain a first component, heating the microcrystalline wax to be completely dissolved, soaking the first component into the dissolved microcrystalline wax, taking out, quickly adding into deionized water,and airing to obtain the polymer drag reducer for oil and gas exploitation. The drag reducer synthesized in the invention is easily soluble in water and has a good drag reduction effect.

Description

technical field [0001] The invention belongs to the field of oil field application technology, and in particular relates to a polymer drag reducer for oil and gas development and a preparation process thereof. Background technique [0002] When the fluid contains some specific substances, its frictional resistance in turbulent flow will be greatly reduced. This phenomenon is called drag reduction, and the additives that can achieve drag reduction are called drag reducers. Drag reducers can be divided into water-soluble drag reducers and oil-soluble drag reducers. Oil-soluble drag reducers are divided into two types according to the principle of action: one is a highly flexible linear polymer with ultra-high molecular weight, mainly olefins Homopolymer or copolymer, polymethacrylate, etc.; the other is surface active compounds. [0003] With the extensive exploration and development of shale oil and gas, slick water fracturing for the purpose of improving reservoir permeabil...

Claims

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Application Information

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IPC IPC(8): C09K8/68C09K8/88C09K8/90C08F220/56C08F220/58C08F226/02C08F212/14C08B37/08
CPCC08B37/003C08F220/56C08F226/02C09K8/68C09K8/882C09K8/905C08F220/585C08F212/28
Inventor 程玉臻李琳
Owner 胜利油田胜华实业有限责任公司
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