白庙平1水平井多级分段重复压裂实践  

Horizontal well multistage refracturing practice in Well Baimiao-H1

作　　者：曾雨辰[1] 陈波[1] 杜爱龙[1] 杨洪[1] 张建涛[1] 蒋晓明 

机构地区：[1]中原石油勘探局井下特种作业处,河南濮阳457164 [2]贝克休斯公司,北京100010

出　　处：《石油钻采工艺》2011年第6期79-82,共4页Oil Drilling & Production Technology

基　　金：中国石化集团公司项目"中原油区水平井分段压裂技术先导试验"(编号:SG0956)部分内容

摘　　要：白庙平1井是套管完井的阶梯式水平井,投产时对主力气层81号层分2段进行了水力喷射压裂改造未获成功,后将主力气层全部射开,产量仍不理想。经分析该井增产潜力巨大,决定使用贝克休斯裸眼井完井分段压裂工具对81号层和其他新射气层进行7级分段压裂改造。设计压裂总液量1520.2 m3,加砂128.1 m3;测试压裂后对施工参数进行了调整,实际压裂总用液1659.6 m3,全井加砂170 m3。压后7 d,3 mm油嘴放喷排液,日产气8459~18700 m3,日产油12.9~16.8 t,压裂效果显著。该井多段压裂的成功实践指明了中原油田低渗透水平井今后完井和压裂改造技术的发展方向。Well Baimiao-H1 is a stepped horizontal well with casing completion.The well was stimulated in its main gas layer L81 using hydraulic jet fracturing technique by way of two stages after being put into operation,but did not succeed.Later,all the main gas layers were perforated,and the gas production rate was still not as good as expected.Considering its huge production potential,Baker Hughs open hole completion multistage fracturing tools were adopted,by which multistage fracturing operations with a total of seven stages were conducted on its main gas layer and other newly perforated gas layers.The total fracturing fluid of the initial design was 1520.2 m3 with 128.1 m3 fracturing proppant.After the mini-fracturing,the operational parameters were adjusted,and a total of 1659.6 m3 fluid was actually pumped down into the hole with 170 m3 proppant added.7 days later,fracturing fluid was flew back to the hole through ？3 mm choke,and the daily gas flow rate reached 8459-18700 m3 while the daily oil flow rate was 12.9-16.8 t.The successful practice on this well provides the developing direction for future completion and fracturing technologies that suitable for low permeability horizontal wells in Zhongyuan Oilfield.

关 键 词：水平井 套管完井 多级分段压裂 中原油田 

分 类 号：TE357.1[石油与天然气工程—油气田开发工程]