矿渣MTC固化滤饼能力实验研究  

STUDY ON PERFORMANCE OF FILTER CAKE SOLIDIFIED BY CINDER MTC

作　　者：彭志刚[1] 冯茜[2] 何育荣[1] 刘崇建[3] 

机构地区：[1]胜利石油管理局钻井院 [2]胜利油田采油院 [3]西南石油大学

出　　处：《天然气工业》2006年第4期74-76,共3页Natural Gas Industry

基　　金：胜利石油管理局"高强塑性低密度水泥浆体系研究"项目(编号:gkb0408)。

摘　　要：固井液与钻井液滤饼实现整体固化胶结一直是石油工程界期待解决的重大技术难题。由于钻井液滤饼的存在,水泥浆与井壁不能牢固胶结,固井后常常出现油气水窜等严重问题,从而造成固井失败。为此,系统地比较了矿渣MTC水泥浆与油井水泥浆在没有滤饼、普通钻井液滤饼、多功能钻井液滤饼3种情况下的界面胶结性能。实验结果表明,没有滤饼存在时,油井水泥浆的胶结性能明显优于矿渣MTC;普通滤饼存在时,水泥浆和MTC均不能得到令人满意的胶结性能;油井水泥浆不能使多功能钻井液滤饼固化胶结,而矿渣MTC能够实现多功能钻井液滤饼的固化胶结。多功能钻井液钻井技术与矿渣MTC固井技术联合使用可以适当淡化顶替技术,充分发挥矿渣MTC技术的经济、技术优势,提高固井质量。It has been the major technical problem for the petroleum industry to succeed in making the filter cakes from cementing fluid and drilling fluid solidified together. Since the filter cake from drilling fluid exists, the cement slurry can't be cemented soundly with the well wall, which contributes severe oil/gas/water channeling after cementation and leads to the failure of cementation. Here the interface cementing performance of cinder MTC slurry and well cement slurry is compared under 3 states of no filter cake, common mud filter cake and multi-function mud filter cake. The testing results show without filter cake the cementing performance of well cement slurry is obviously better than that of cinder MTC slurry; with common filter cake both cinder MTC slurry and well cement slurry can't produce the satisfactory cementing performance; the well cement slurry can't make the filter cake from multi-function mud solidification, but the cinder MTC slurry can make the filter cake from multi-function mud solidification. Joint use of the drilling technology with multi-function mud and the cementing technology with cinder MTC can relieve the displacement technology properly, make good use of the economic and technical advantages of cinder MTC technique, and improve the cement job quality.

关 键 词：固井 MTC 滤饼 矿渣 钻井液 胶结 

分 类 号：TE256[石油与天然气工程—油气井工程]