摘要
冷科１井位于柴达木盆地冷潮五号，是石油天然气集团公司的１口重点科学探索井。完钻井深５２００ｍ，φ１３９．７ｍｍ油层套管下深４８５４．６３ｍ，封固段从套管鞋到井口，钻井液密度为１．８０ｇ／ｃｍ~３，井底循环温度达到１２０℃。在高温、高压、长封固段井中综合采用提高顶替效率、防气窜、高密度水泥浆等技术措施后，双级固井取得成功，固井质量优质。
Well Lengke-- 1, located in No. 5 block, Lenghu of Chaidam Basin, is a key scientific investigation well of CNPC. The. drilling depth is 5200m, and 139. 7=mm production casing was set to the depth of 4854. 63m. The cementing interval is from the casing shoe to the wellhead. The mud density is 1. 80g/cm^3. The bottomhole circulating temperature is 120℃. The two stage cementing method is succeeded with high quality, after measures such as the enhanced displacement efficiency, channeling prevention and high density slurry method are used in high temperature, high pressure and long--distance cementing interval.
出处
《石油钻采工艺》
CAS
CSCD
北大核心
1999年第5期32-36,共5页
Oil Drilling & Production Technology
关键词
油层套管
固井
固井质量
探井
防气窜
下套管
production casing
well cementing
channeling prevertion
displace
cementing quality
