延长油田沙子湾油区技术政策界限研究  

Study on Technical Policy Boundary of Shaziwan Oil Region in Yanchang Oilfield

作　　者：辛毅超 高月 寸少妮 XIN Yi-chao;GAO YUE;CUN Shao-ni(Exploration and Development Technology Research Center,Yanchang Oilfield Co.,Ltd.,Yan'an shaanxi 716000,China;Xingzichuan Oil Production Plant of Yanchang Oilfield Co.,Ltd.,Yan'an shaanxi 716000,China)

机构地区：[1]延长油田股份有限公司勘探开发技术研究中心,陕西延安716000 [2]延长油田股份有限公司杏子川采油厂,陕西延安716000

出　　处：《辽宁化工》2021年第11期1676-1678,共3页Liaoning Chemical Industry

基　　金：延长石油集团公司科技计划项目,延长油田西部注水区精细地质研究(项目编号:ycsy2019ky-B-1-15)。

摘　　要：基于沙子湾油区目前开发矛盾突出的问题,以区块地质特征和历史生产状况为基础,结合低渗透油藏开发原则对研究区开发技术政策界限进行了分析研究。结果表明,沙子湾油区采取一套层系开发较为合适,合理井网密度12口·km^(-2);现阶段研究区整体采取矩形的反九点、线状五点以及反七点井网形式为主;油井极限半径为27 m,水井极限半径为54 m,缝宽20 m左右,排距要达到100 m左右,注水效果比较好;采取采油指数方法,依据生产压差的标定结果,计算出单井日油能力1.03 t·d^(-1)。Aiming at on the outstanding problems of the current development contradictions in the Shaziwan oil area,based on the geological characteristics of the block and historical production conditions,combined with the development principles of low permeability reservoirs,the development technology policy boundaries of the study area were analyzed and studied.The results showed that it was more appropriate to develop a set of strata in the Shaziwan oil region,with a reasonable well pattern density of 12 holes per square kilometer;at this stage,trectangular inverted nine-point,linear five-point and inverted seven-point well patterns should be adopted in the study area as a whole;The limit radius of the oil well was 27 m,the limit radius of the water well was 54 m,the fracture width was about 20 m,and the row spacing need reach about 100 m.The water injection effect was relatively good;Using the oil production index method,according to the calibration results of the production pressure difference,the daily oil capacity of a single well was calculated to be 1.03 t·d^(-1).

关 键 词：开发技术政策 合理井网井距 开发层系 低渗透 

分 类 号：TE348[石油与天然气工程—油气田开发工程]