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A kind of polystyrene diacrylate-1,4-butylene glycol ester and its synthesis method and application

A technology of polystyrene diacrylic acid and butanediol ester, which is applied in construction and other directions, can solve the problem of no effective monitoring method for oil production, and achieve the effect of less consumption

Active Publication Date: 2018-01-02
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 diacrylate-1,4-butylene glycol ester and its synthesis method and application

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Experimental program
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Effect test

Embodiment 1

[0031] Dissolve 0.3g of polyethylene glycol (PEG4000 average molecular weight 3600-4400) into 50g of hot water, raise the temperature to 70°C for 30min, slowly add 45g of 1,4-butylene diacrylate and 4.5g of styrene and 2g of ammonium persulfate mixed solution, reacted for 8h after the dropwise addition was completed, cooled to room temperature and discharged.

Embodiment 2

[0033] Dissolve 0.4g of polyethylene glycol (PEG4000 average molecular weight 3600-4400) into 60g of hot water, raise the temperature to 70°C for 30min, slowly add 35g of 1,4-butylene diacrylate and 3.5g of styrene and a mixed solution of 1.5g ammonium persulfate, reacted for 8 hours after the dropwise addition was completed, cooled to room temperature and discharged.

Embodiment 3

[0035] Dissolve 0.5g of polyethylene glycol (PEG4000 average molecular weight 3600-4400) into 70g of hot water, raise the temperature to 70°C for 30min, slowly add 25g of 1,4-butylene diacrylate and 2.5g of styrene and a mixed solution of 1g ammonium persulfate, reacted for 8 hours after the dropwise addition was completed, cooled to room temperature and discharged.

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Abstract

The invention provides a polystyrene diacrylate-1,4-butanediol ester and its synthesis method and application. Polystyrene diacrylate-1,4-butylene glycol ester of the present invention is prepared by the method comprising the following steps: with diacrylate-1,4-butylene glycol ester and styrene as reaction monomers, in dispersant poly In the presence of ethylene glycol and initiator ammonium persulfate, the suspension polymerization reaction is carried out with water as the dispersion medium. The polystyrene diacrylate-1,4-butylene glycol ester of the present invention has the following advantages: test results show that the polystyrene diacrylate-1,4-butylene glycol ester prepared by the synthetic method of the present invention can be completely dissolved In the crude oil, its concentration can be accurately measured by gas spectrometer, 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 oil exploration and development, in particular to a polystyrene diacrylate-1,4-butanediol ester 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 Ther...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F222/14C08F212/08E21B47/11
Inventor 郑猛张洪君王浩闫峰梁凌熏张群刘晶晶柳燕丽
Owner PETROCHINA CO LTD
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