摘要
本文介绍了油井水泥早强剂SS-91的制备,评价了SS-91对水泥浆其它性能的影响、与其它外加剂的配伍性。报导了SS-91现场固井试验情况。
Presented in this paper early strengthening promotor SS-91 for use in oil well cement is a mixture of several inorganic compoun; as main components and of organic compounds as auxiliaries and is manufactured mmercially in form of finely ground powder,Laboratory comparative tests show that with SS-91 introduced into cement (grades G and H) slurries, the hardened cementstone has much higher values of 24-hr, 48-hr and 168-hr compression strength than when CaCl_2 is used instead; with SS-91 some expansion in setting is observed; the cement slurries treated by SS-91 have easily controllable thickening time, normal rheologic behavior and lowered water separation in standing; the compatibility of SS-91 with commonly used additives is good. The field tests on well cementing with SS-91 treated cement slurries (including low density, lightened one) performed in Zhongyuan Oil Fields are all successful. The action mechanizms of SS-91 are discussed.
出处
《油田化学》
CAS
CSCD
北大核心
1993年第4期300-304,共5页
Oilfield Chemistry
关键词
采油井
钻井水泥
助剂
Early Strength Promtor for Oil Well Cement
Additive to Cement Slurries
Laboratory Performance Evaluation
Field Tests
Zhongyuan Oil Fields
Action Mechanizms
