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A kind of polystyrene ethyl acrylate and its synthesis method and application

A technology of polystyrene ethyl acrylate and ethyl acrylate, which is applied in construction and other fields, can solve the problem that there is no effective monitoring method for oil production, and achieve the effect of less consumption

Active Publication Date: 2018-02-02
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large number of fracturing stages and the differences in physical properties in long horizontal sections, the fluid drainage after each stage of fracturing is of great significance for the evaluation of fracturing effects and the deployment of well locations in the next step, but for each stage after staged fracturing There is no effective monitoring method for oil production

Method used

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  • A kind of polystyrene ethyl acrylate and its synthesis method and application

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Experimental program
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Effect test

Embodiment 1

[0031] Dissolve 0.25g of polyethylene glycol (PEG4000 average molecular weight 3600-4400) into 55g of hot water, raise the temperature to 75°C for 30min, slowly add 40g of ethyl methacrylate, 4g of styrene and 0.9g of styrene peroxide dropwise The mixed solution of formyl was reacted for 8 hours after the dropwise addition, cooled to room temperature and discharged.

Embodiment 2

[0033] Dissolve 0.35g of polyethylene glycol (PEG4000 average molecular weight 3600-4400) into 60g of hot water, raise the temperature to 75°C for 30min, slowly add 35g of ethyl methacrylate, 3.5g of styrene and 0.7g of peroxide The mixed solution of benzoyl was reacted for 8 hours after the dropwise addition, cooled to room temperature and discharged.

Embodiment 3

[0035] Dissolve 0.45g of polyethylene glycol (PEG4000 average molecular weight 3600-4400) into 65g of hot water, raise the temperature to 75°C for 30min, slowly add 30g of ethyl methacrylate, 3g of styrene and 0.5g of styrene peroxide dropwise The mixed solution of formyl was reacted for 8 hours after the dropwise addition, cooled to room temperature and discharged.

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Abstract

The invention provides a polystyrene ethyl methacrylate and its synthesis method and application. The polystyrene ethyl acrylate of the present invention is prepared by the method comprising the following steps: taking ethyl acrylate and styrene as reaction monomers, in dispersant polyethylene glycol and initiator benzoyl peroxide In the presence of water, the suspension polymerization reaction is carried out with water as the dispersion medium. The polystyrene ethyl acrylate of the present invention has the following advantages: test results show that the polystyrene ethyl acrylate produced by the synthetic method of the present invention can be completely dissolved in crude oil, and can be Its concentration can be accurately measured, and the dosage is small, which meets the needs of monitoring the oil production profile of horizontal wells.

Description

technical field [0001] The invention relates to the field of petroleum exploration and development, in particular to a polystyrene ethyl methacrylate and its synthesis method and application. 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 pertinence, and layers are selected based on experience. Therefore, It is particularly important for data collection and analysis of fracturing effects after fracturing. In the prior art, the development of fractures after fracturing can be monitored and analyzed by microseismic method, potential method, etc., and whether there is industrial oil flow in the reservoir can be known through the flowback situation, but for the oil production of each stage after staged fracturing There are n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/16C08F212/08E21B47/11
Inventor 郑猛张洪君闫峰徐厚英李佳孙倩茹董婉贾紫薇
Owner PETROCHINA CO LTD
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