渤海Q油田特高含水期自然递减率与提液效果影响因素分析  

Analyses of Factors Affecting Natural Decline Rate and Liquid Extraction Effect during Ultra-high Water Cut Period in Q Oilfield of Bohai Sea

作　　者：高智梁 周日 欧阳雨薇 张艳英 李权 赵云斌 王凤刚 GAO Zhiliang;ZHOU Ri;OUYANG Yuwei;ZHANG Yanying;LI Quan;ZHAO Yunbin;WANG Fenggang(Qinhuangdao 32-6 Operating Company,Cnooc(China)Co.,Ltd,Tianjin 300450,China;Branch Company of Engineering Technology,Cnooc Energy Development Co.Ltd,Tianjin 300450,China)

机构地区：[1]中海石油(中国)有限公司秦皇岛32-6作业公司,天津300450 [2]中海油能源发展股份有限公司工程技术分公司,天津300450

出　　处：《石油工业技术监督》2023年第10期12-16,共5页Technology Supervision in Petroleum Industry

摘　　要：渤海Q油田目前处于特高含水期,提液生产是油田增产挖潜的主要措施手段。通过对油田产量自然递减率定义及理论公式变形推导,明确油田递减率主要影响因素。基于油田生产实际,进行不同水驱类型油藏在扩容后提液、未提液及不同提液幅度下的油井含水上升幅度统计分析,确定渤海Q油田不同水驱类型及提液幅度下含水上升及产量递减影响因素,以此为指导开展扩容后提液井优选,取得良好增产效果。通过对比近年油田实际生产和自然递减率变化情况,预测了油田后期自然递减率变化,提高了油田配产的科学性与合理性。Bohai Q Oilfield is in an extremely high water cut period,and liquid extraction production is the main measure to increase production and tap potential in oil fields.Through the definition of natural decline rate of oil field production and the deformation derivation of theoretical formula,the main factors affecting the decline rate of oil field are clarified.At the same time,based on the actual production of the oilfield,the statistical analysis of the water cut rise amplitude of different water drive reservoirs under the condition of liquid extraction,unextraction and different extraction amplitude after expansion is carried out to determine the influencing factors of water cut rise and production decline under different water drive types and extraction amplitude in Bohai Q oilfield.According to this,the selective preference of liquid extraction well after expansion is conducted,with a good production stimulation effect.By comparing the changes of actual production and natural decline rate in recent years,the change of natural decline rate in the later period of oilfield is predicted so as to improve the scientificalness and rationality of oil field production allocation.

关 键 词：特高含水期 自然递减率 提液效果 

分 类 号：TE53[石油与天然气工程—油气田开发工程]