渤海P油田高压注水解堵效果评价及影响因素分析  

Study on Effect Evaluation and Influencing Factors of High Pressure Injection Unblocking in the Production Wells of P Oilfield,Bohai

作　　者：白冰 吴广 黄英 张浩 王佩文 BAI Bing;WU Guang;HUANG Ying;ZHANG Hao;WANG Peiwen(Pengbo Operating Company of CNOOC(China)Limited,Tianjin 300459,China;China Oilfield Services Limited,Tianjin 300459,China;Unconventional Technology Research Institute,Engineering Technology Branch of CNOOC Energy Development Co.Ltd.,Tianjin 300452,China)

机构地区：[1]中海石油(中国)有限公司蓬勃作业公司,天津300459 [2]中海油田服务股份有限公司,天津300459 [3]中海油能源发展股份有限公司工程技术分公司非常规技术研究院,天津300452

出　　处：《重庆科技学院学报（自然科学版）》2019年第6期56-58,95,共4页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家科技重大专项“大型油气田及煤层气开发”(2016ZX05058-003);中国海洋石油总公司科研项目“海上高效采油新技术”(CNOOC-KJ1352DXM23LTD)

摘　　要：渤海P油田部分压裂充填井生产数据未表现出无因次采油采液指数曲线特征,而是呈类似裸眼井的产液量递减趋势。针对此问题,研究分析了P油田的堵塞机理,提出高压注水解堵新措施。评价新措施的实施效果,分析主力层厚度占比、主力层压力、含水率、污染程度及注水压差等决定性因素,总结改善措施实施效果的方法及选井原则。The production data of some fracturing and filling wells in Bohai P oilfield do not show the characteristics of following the dimensionless production fluid index curve,but the phenomenon of diminishing production of liquid in similar open holes.This paper analyzes the plugging mechanism of P oilfield,and innovatively puts forward the high-pressure injection hydrolysis blocking measures.The effect evaluation of the measures is carried out to analyze the decisive factors such as the proportion of main layer thickness,main layer pressure,water content,pollution degree and water injection pressure difference.The methods and well selection principles of the implementation effect of improvement measures are summarized.

关 键 词：渤海 油井 高压注水 油井解堵 效果评价 

分 类 号：TE355[石油与天然气工程—油气田开发工程]