白庙平1水平井多级分段重复压裂实践（）　　摘要：　　关键词：　　中图分类号：

Horizontal well multistage refracturing practice in Well Baimiao-H1

曾雨辰 陈波 杜爱龙 杨洪 张建涛 蒋晓明

ZENG Yuchen CHEN Bo DU Ailong YANG Hong ZHANG Jiantao JIANG Xiaoming

中原石油勘探局井下特种作业处，河南濮阳　457164 贝克休斯公司，北京　100010

Downhole Service Company, ZPEB, Puyang 457164, China Baker Hughes, Beijing 100010, China

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.