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1995年10月,中国海洋石油渤海公司在渤海歧口18—1油田开发井的快速钻井试验项目中,创造了三项钻井技术指标新纪录。其中歧口18—1P1井,完井井深3 563 m,钻井周期13.28天,打破总公司3500—4 000 m生产井钻井周期70.91天的纪录(据了解,这个钻井周期在全国也是最短的);同时该井平均日进尺261.66 m,打破总公司生产井平均日进尺254 m的纪录;歧口18—1P3井,PDC钻头单次起下钻钻井进尺为2 059 m,打破总公司该项目1460 m的纪录。这一优异成绩使海洋石油钻井技术向国际先进水平又迈进了一大步。
In October 1995, CNOOC Bohai Corporation created a new record of three drilling technical indicators in the rapid drilling pilot project of the development well of Qikou 18-1 oilfield in Bohai Sea. Among them, the Qikou 18-1P1 well, the completion well depth of 3 563 m and the drilling cycle of 13.28 days broke the 70.91-day drilling cycle of the 3500-4000 m production well in the head office (it is understood that the drilling cycle is also the shortest across the country); At the same time, the average daily footage of the well was 261.66 m, which broke the record of 254 m average daily footage of production wells in the head office. The drilling footage of Qikou 18-1P3 well and PDC bit from bottom to top was 2,059 m, breaking the 1,460 m head office project Record. This outstanding achievement has made offshore oil drilling technology a big step toward the international advanced level.