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A kind of dibromopropyl polystyrene butylene dioate and its preparation method and application

A technology of polystyrene butenedioic acid dibromopropyl ester and butenedioic acid dibromopropyl ester, which is applied in construction and other directions, and can solve the problems of unsuitable oil production, large dosage, and few types of tracers. , to achieve the effect of high detection accuracy and low dosage

Active Publication Date: 2018-01-05
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing tracers used in oil fields are all water-soluble tracers, and the types of tracers are small and the dosage is large, so they are not suitable for monitoring the oil production of each stage after multi-layer and multi-stage fracturing in horizontal wells

Method used

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  • A kind of dibromopropyl polystyrene butylene dioate and its preparation method and application

Examples

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Embodiment 1

[0033] This embodiment provides a kind of preparation method of polystyrene maleate bis(1,3-dibromo-2-propyl) ester, which comprises the following steps:

[0034] a. Dissolve 1 g of polyethylene glycol (PEG4000) into 60 g of water, raise the temperature to 90° C. for 30 minutes, and obtain an aqueous solution of polyethylene glycol;

[0035] b. Slowly add 35 g of maleic acid bis(1,3-dibromo-2-propyl) ester, 3.5 g of styrene in the aqueous solution of polyethylene glycol at a rate of 5-10 drops / min. And the mixed solution of 0.9g benzoyl peroxide, react 10h after completion of dropwise addition, cool to room temperature and discharge, obtain polystyrene maleate bis(1,3-dibromo-2-propyl) ester, Its particle size is 0.425mm-0.600mm (30 mesh-40 mesh).

Embodiment 2

[0037] This embodiment provides a kind of preparation method of polystyrene maleate bis(1,3-dibromo-2-propyl) ester, which comprises the following steps:

[0038] a. Dissolve 1.5g of polyethylene glycol (PEG4000) into 65g of hot water, raise the temperature to 90°C for 30 minutes, and obtain an aqueous solution of polyethylene glycol;

[0039] b. Add 30 g of bis(1,3-dibromo-2-propyl) maleate, 3 g of styrene and 0.6 g of benzoyl peroxide mixed solution, reacted for 10h after the dropwise addition was completed, cooled to room temperature and discharged to obtain polystyrene maleic acid bis(1,3-dibromo-2-propyl) ester, its granular The diameter is 0.300mm-0.600mm (30 mesh-50 mesh).

Embodiment 3

[0041] This embodiment provides a kind of preparation method of polystyrene maleate bis(1,3-dibromo-2-propyl) ester, which comprises the following steps:

[0042] a. Dissolve 2g of polyethylene glycol (PEG4000) in 75g of hot water, raise the temperature to 90°C for 30 minutes, and obtain an aqueous solution of polyethylene glycol;

[0043]b. Add 20 g of bis(1,3-dibromo-2-propyl) maleate, 2 g of styrene and 0.3 g of benzoyl peroxide mixed solution, reacted for 10h after the dropwise addition was completed, cooled to room temperature and discharged to obtain polystyrene maleic acid bis(1,3-dibromo-2-propyl) ester, its granular The diameter is 0.212mm-0.425mm (40 mesh-70 mesh).

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PUM

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Abstract

The invention provides a kind of dibromopropyl polystyrene crotonate and its preparation method and application. The preparation method comprises using styrene and dibromopropyl butenedioate as reaction monomers, carrying out polymerization reaction with water as a dispersion medium in the presence of polyethylene glycol and benzoyl peroxide, to obtain the polystyrene Dibromopropyl ethylene butylene dioate. The present invention also provides the polystyrene crotonate dibromopropyl ester prepared by the above preparation method, and the polystyrene crotonate dibromopropyl ester used as a tracer for monitoring the oil production profile of a horizontal well The application and the tracer used for monitoring the oil production profile of horizontal wells containing the polystyrene crotonate dibromopropyl ester. The polystyrene butylene dibromopropyl ester of the present invention can be completely dissolved in crude oil, and it can be used to monitor the oil production of each section after multi-stage fracturing of a horizontal well, so that the oil production of each section can be analyzed and drawn The purpose of each oil-producing fluid profile.

Description

technical field [0001] The invention relates to a polystyrene butylene diacid dibromopropyl ester and a preparation method and application thereof, belonging to the technical field of petroleum exploration and development. Background technique [0002] At present, in the process of oilfield exploration and development, horizontal wells are mostly used for exploration wells, and multi-layer and multi-stage fracturing is the preferred process for formation stimulation. However, in the process of layer selection, there is no specificity, and the layers are selected based on experience. Therefore, it is particularly important for data collection and analysis of fracturing effects after fracturing. In the existing technology, it is possible to monitor and analyze the development of fractures after fracturing by means of microseismic method, potential method, etc., and then know whether there is industrial oil flow in the reservoir through the flowback situation. There is no effe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F222/18C08F212/08E21B47/11
Inventor 郑猛张洪君王浩闫峰刘恩宏张俊蒋伟亢思丹
Owner PETROCHINA CO LTD