页岩气水平井重建井筒重复压裂技术及应用  

Refracturing technology and application for reconstructed wellbores of horizontal shale gas wells

作　　者：豆瑞杰 高婷 李强 DOU Ruijie;GAO Ting;LI Qiang(Downhole Testing Company,Sinopec Jianghan Oilfield Services Jianghan Corporation,Wuhan,Hubei 430075,China)

机构地区：[1]中石化江汉石油工程有限公司井下测试公司,湖北武汉430075

出　　处：《江汉石油职工大学学报》2025年第1期37-40,共4页Journal of Jianghan Petroleum University of Staff and Workers

摘　　要：涪陵气田焦石坝区块经立体开发调整后,老井井筒周围仍有储量未被充分动用,前期开展投球暂堵重复压裂试验3井次,重压后可采储量提升有限。通过开展井筒完整性评价及处理技术、套管安全下入技术、高效固井工艺和重复压裂改造工艺技术等攻关和关键工具配套,形成了页岩气水平井套中固套重复压裂技术。技术在涪陵气田成功应用12井次,效果良好。After the integrated development and adjustment of the Fuling Gas Field,there remain untapped reserves around the old wellbores in the Jiaoshiba Block.Preliminary tests on ball-drop temporary plugging and refracturing have shown limited improvements in recoverable reserves.Through conducting wellbore integrity evaluation,casing safety running technology,efficient cementing technology and refracturing stimulation technology,a new technique for refracturing of shale gas horizontal wells with the casing cemented within casing has been established.This technology has been successfully applied in 12 wells in the Fuling Gas Field,yielding favorable results.

关 键 词：套中固套 体积重复压裂 补能 堵漏 

分 类 号：TE377[石油与天然气工程—油气田开发工程]