Western drilling updated several overseas drilling records
Chinese petroleum network news on November 5th, by the Uzbekistan western drilling project XDEC-6 team bearing drill Ming 15 wells successfully completed two construction tasks, a number of new records to refresh the China Petroleum Corp overseas projects and drilling in central asia.
The 15 wells are deployed in the Ukraine Corporation Minge Braque on the first block exploration evaluation well is the key cooperation projects overseas group and Uzbekistan national key project. The well with geological characteristics of four super high ", two in the end 444.5 mm hole design depth of 3850 meters. In the construction according to the lithology and drilling data, analyzing data of adjacent wells on key label complex accident wells, take a technical idea one policy, and effectively implement the technical measures and regulations. There is not any downhole complication and accident in the 178 layer of salt water drilling, which is 11 days ahead of the contract period.
Aiming at the difficulty of cementing casing under 339.7 mm depth of 3848 meters, weighing 389 tons, the cumulative casing suspension for injection volume of 681 cubic meters, the project department has organized technical staff conference, refinement of each step, the implementation of each measure, check each link of the process closely together, go. The well cementing operation for up to 7 hours, in the same section in creation and refresh 444.5 mm size hole drilling depth Chinese overseas oil and Central Asia, the most open hole section of the longest and most amount of mud, 339.7 mm casing into the new record for the largest amount of note, the deepest, most long cementing section a number of drilling and cementing.
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