摘要
安徽皖江地区页岩气资源潜力巨大,但是该地区地层复杂,含气层主要在大隆组、龙潭组、孤峰组、五峰-高家边组,该地层钻探施工中会遇到碳质泥页岩层、煤层,极容易发生井塌、抱钻、井漏、下钻遇阻等事故。安徽皖江地区1:5万页岩气地质调查子项目-皖江地区页岩气地质调查项目施工中采用绳索取芯技术,通过合理的井身结构设计、科学的钻井泥浆调配等先进的施工方法,成功施工了"港地1井"和"南地1井",取得了不错的地质成果。。
The shale gas resource potential is huge in the Anhui Wanjiang area,where,however,the strata are complex,gas-bearing beds mainly occur in the Dalong,Longtan,Gufeng,Wufeng-Gaojiabian Formations,in which drilling usually encounters carbonaceous mud shale and coal seam,with high risks of borehole collapse,well leakage,slacking off and so on.Wire line coring was used in a shale gas geological survey construction,a part of 1:50000 shale gas geological survey project in the Anhui Wanjiang area.Through reasonable well bore design,scientific drilling mud preparation and advanced construction method,the Gangdi well 1 and Nandi well 1 were successfully built up.
作者
秦鹏飞
吴承国
蒋冬冬
倪晋刚
QIN Peng-fei;WU Cheng-guo;JIANG Dong-dong;NI Jin-gang(No.2 Exploration Unit of Bureau of Coal Geology of Anhui Province,Wuhu,Anhui 241001,China)
出处
《安徽地质》
2018年第1期56-60,共5页
Geology of Anhui
关键词
页岩气
绳索取芯
泥浆
shale gas
wire line coring
drilling mud
