气体介质条件下固井技术在元陆1井的应用  

Cementing Technology Applied in Gas Medium of Well YL1

作　　者：焦建芳[1] 姚勇[1] 舒秋贵[2] 郭广平[1] 冯颖韬[3] 

机构地区：[1]中石化西南石油局固井公司,四川德阳 [2]西华师范大学油气资源开发与油田环保研究所,四川南充 [3]西南石油大学石油工程学院,成都

出　　处：《钻井液与完井液》2012年第4期59-62,92,共4页Drilling Fluid & Completion Fluid

基　　金：中国石油化工集团公司项目"气体介质条件下固井技术研究"(JP10004)

摘　　要：介绍了气体介质条件下固井的难点,主要包括下套管和"U"型管效应等问题,并分别阐述了应对措施。通过实验对比了几种水泥浆配方的性能,优选出适合气体介质条件下固井的降失水水泥浆体系。将其应用于元陆1井φ244.5 mm技术套管固井过程中,结果整个固井施工过程顺利,水泥浆注入量把握准确,达到设计要求,浆体返至井口,声幅测得固井优质率为69.2%,证明气体介质条件下固井不但可以缩短钻井周期,还大大提高了固井质量。In this paper, the difficulties and treating methods of cementing in gas medium are introduced, such as casingand 'U' pipe effect. The formulation of cement slurry is optimized that can be used to carry out cementing in gas medium.The application in cementing of (?)244.5 mm casing in well YL1 shows that the high quality percent rate of cementing jobis 69.2%, which indicates that in gas medium, not only the cementing job term can be reduced, but also the cementing jobquality can be improved sharply.

关 键 词：气体介质 沉砂 注水泥 

分 类 号：TE256.9[石油与天然气工程—油气井工程]