我队在关中地区钻成一口超深井,完井深度5210.71米。整个钻井过程中,广大工人、干部、技术人员,在各级党组织的正确领导下,认真执行毛主席的革命路线,深入开展“工业学大庆”的群众运动,战天斗地,克服了一个又一个困难,为我国石油钻井工作做出了新贡献,为进一步评价××盆地含油气远景取得了新成果。本井使用低固相铁铬盐盐水混油泥浆裸眼钻进:二次开钻自井深292米泥浆中开始 Our team drilled an ultra-deep well in the Guanzhong area with a completion depth of 5210.71 meters. Throughout the entire drilling process, under the correct leadership of the party organizations at all levels, the vast numbers of workers, cadres and technical personnel have earnestly implemented Chairman Mao’s revolutionary line, thoroughly carried out the mass movement of “Daqing in industry” and fought one after another to overcome one difficulty after another , Made new contributions to China’s oil drilling work, and made new achievements for further evaluating the hydrocarbon-oil prospect in the ×× basin. The well was drilled with low-solid iron-chromium salt brine mixed mud with naked eyes: the second drilling started from the well depth of 292m