Deep Well DrillingAT the Rumanian Branch of the Institution of Petroleum Technologists, on November 27, a discussion was held on problems of deep well drilling. (J.Inst.Pet.Tech.,23; 1937).doi:10.1038/1401093d0NoneNature
On February 8th,SOFEshipped its first ZJ90DBdeep-welldrilling rig to Kuwait. This marks anothersuccessofSinopec Equipmententering the high-end foreign market,afterthe successful entryof the ZJ80DB drilling rig in Saudi Arabia. It validates the advantages of the “Chinese Standards +SinopecPlatform”...
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深井超深井钻井技术DeepWellDrilling.ppt,(一)国内常用深井超深井套管、钻头系列 目前,我国深井、超深井钻井中普遍采用的套管结构程序为:20”—13 3/8”—9 5/8” —7”—5” ,少数陆地超深井和海洋钻井已采用 30”—20”—13 3/8”—9 5/8” —7” —5”的套管程序。
This invention relates to well-drilling apparatus. An object of this invention is to provide an improved well drilling means for drilling large diameter holes wherein the operator for the drill bit i