发明名称 APPARATUS TO IMPROVE THE QUALITY OF WELL CEMENT, PREVENT GASMIGRATION AND MEASURE WAITING-ON-CEMENT TIME
摘要 This invention describes an apparatus to provide pressure pulses to ceme nt slurries in a well, as the cement makes the transition from liquid slurry to a solid, with the objective to improve the quality of the cement. More specifically, to prevent gas migration, determine the waiting-on-cement time and improve the quality of cement evaluation logs.
申请公布号 CA2406306(A1) 申请公布日期 2004.04.16
申请号 CA20022406306 申请日期 2002.10.16
申请人 HABERMAN, JOHN P. 发明人 HABERMAN, JOHN P.
分类号 E21B33/13;E21B47/00;E21B47/06;(IPC1-7):E21B33/13 主分类号 E21B33/13
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