One more window cutting was carried out in the Yamalo-Nenets Autonomous Okrug by the specialists of Drilling Innovation LLC. The KLEN-7'' hydraulic whipstock was run and installed at a depth of 3100m in the well of the Urengoyskoye oil and gas field.

With our own small-sized cable device, the engineer of Drilling Innovation company made the orientation of the whipstock without any difficulties.

Well-matched hydraulic set of whipstock and milling assembly made it possible to promptly and without question from the Customer's supervisors to cut a technological window at 7'' casing (steel grade P-110) at a depth of 3100m in 6.5 hours. All work was carried out in a regular mode, according to the work plan. The well-coordinated actions of the drilling contractor's team and our service engineer allowed us to quickly move on to the next stage of sidetracking drilling. The BHA for drilling "flew" through the cut out "window" without any difficulty.

The drilling process is in progress.