摘要
深井添加ＣａＣｌ２促凝剂固井在辽河油田一度视为禁区。曙光地区杜１２４区块６口３０００－３５００ｍ深井水侵层固并经验表明，在井底循环温度不超过７５℃情况下，向渤海牌７５℃油井水泥中分别添加不同浓度的ＣａＣｌ２促凝剂固井获得成功，有效地抑制了该区块开发井大段水侵作用。
Application of accelerant CaCl2 in deepwell cementing was not allowed for some time in Liaohe Oilfield. The author makes field experiments: according to the length of cement sheath and slurry volume,accelerant CaCl2 with differentconcentrations are added into Bohai Brand 75 'C oilwell cement and cementings are done in 6 wells which depths range from3000 to 3500m with the bottomhole circulating temperture of below 75℃. The results of such experiments show watercutsof long well-intervals can be effectively inhibited.
出处
《石油钻探技术》
北大核心
1994年第1期9-11,共3页
Petroleum Drilling Techniques
关键词
深井
固井
水侵层
二氯化钙
deep well completion
accelerant
CaCl_2
watercut formation
field testing
Shuguang Oilfield
cementing quality
quality valuation.
