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《Fault-Block Oil & Gas Field》 2018-03
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Analysis of pressure drop sensitive factors of valve ICD water control screen in horizontal well

HE Liang;DENG Fucheng;YANG Yonggang;CHEN Bin;GONG Ning;School of Mechanical Engineering,Yangtze University;No.3 Oil Production Plant,Changqing Oilfield Company,PetroChina;Bohai Petroleum Research Institute,Tianjin Branch of CNOOC limited;  
Conventional screen has been unable to solve the problem of bottom water coning in the late stage of oil and gas exploitation. Now, a new type of valve horizontal well ICD water control sand control screen was designed, and the screen can complete the sand control operation and effectively inhibit the occurrence of water coning during the oil recovery process. In order to evaluate the ability of the screen to regulate water flow, the change of pressure drop in the flow channel was analyzed under different sizes of ICD structures. And the corresponding flow coefficient was calculated. The results show that the pressure drop of the flow path increases with the increase of the inlet radius, and decreases with the increase of the opening height of the valve; the diameter of the valve and the height of the inlet have less effect on the pressure drop of the flow path than inlet radius and valve opening height; the flow coefficient depends on the flow path structure, regardless of the flow rate. According to the results, the design of different screen inlet radius and valve opening height can achieve the purpose of regulating production pressure.
【Fund】: 国家自然科学基金项目“稠油油藏热采井出砂机理与流固热耦合计算方法研究”(51504040);; 湖北省技术创新专项“深部地热资源综合开发利用关键技术”(2016ACA181);; 长江大学青年基金项目“油气井割缝防砂筛管冲蚀磨损机理研究”(2015cqn43)
【CateGory Index】: TE931.2
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