D-2井欠饱和盐水钻井液技术
- 得陇望蜀
-
28 次阅读
-
0 次下载
-
2018-08-11 00:44:59
文档简介:
2011年第38卷第3期探矿1=程(岩土钻掘工程)41S/D一2井欠饱和盐水钻井液技术赵岩,仲玉芳,王卫民,高亮(1.河北省煤田地质局第二地质队,河北邢台054001;2.河北省煤田地质局,河北石家庄050085)摘要:S/D一2井在井深2480nl以后钻遇了大段复杂的盐膏层,由f盐的溶解而造成井径扩大及盐析而结晶造成卡钻。针对七述问题,应用了聚磺欠饱和盐水钻井液体系,解决了钻遇盐膏层后的井壁失稳、钻井液污染等技术问题。详细介绍了该井聚磺欠饱和盐水钻井液的应用技术。关键词:盐膏层;欠饱和盐水;钻井液;石盐升中图分类号:P634.64文献标识码:A文章编号:1672—7428(2011)03—0041—03DrillingFluidTechnologyofUnderSaturatedSaltWaterinWellS/D一2/ZHAOYah,ZHONGYu-fang,WANGWei—rain,GAOLiang(1.No.2Team,HebeiCoalfieldGeologicalBureau,XingtaiHebei054001,China;2.HebeiCoalfieldGeologicalBureau,ShijiazhuangHebei050085,China)Abstract:Rocksaltisaversatilebasicchemicalrawmateria1.OrdosBasinisnotonlyrichinoilandgasresources,andOrdovieianstratumintheeastedgeoftherocksaltisoneofthenlainsaltbasinsalsorichinresources.Withthedevelop—mentofdrillingtechnology,deepandultra—deepdrillingismoreandmoreincomplexformations;thehigherdemandofdrillingfluidperformanceisincreased.ThepaperintroducedthecaseofwellS/D一2:complexsaltgypsumformationwasencounteredwhendrillingtothedepthof2480m,stickinghappen
评论
发表评论