Drilling Of Tight Gas in Daqing Songshen 9H Block Is Speeding Up

On January 13, news came from the Daqing Drilling Tight Gas Project Management Department that the second completion of Well Songshen 9-Ping 7 was successful. The second drilling footage was 2,380 meters. The ROP was 24.65% higher than the design and the drilling cycle was shortened by 2.39% compared to the paper plan. Today, Daqing Drilling Company No. 4 started the year with strong drilling momentum, and the tight gas drilling construction of the 50257 drilling team is speeding up.

Well Songshen 9-Ping 7 is the first round of deep tight gas horizontal wells with a three-split structure drilled by Daqing Drilling in the Songshen 9H block. Through pre-drilling surveys, it was found that mudstone and hard-brittle fractured mudstone developed in large sections of the block well formation. , there are construction difficulties such as wellbore shrinkage, well wall destabilization, and difficulty in tripping out, which pose great challenges to safe, high-quality, and efficient drilling operations.

Before drilling starts, for the first round of new development wells in this block of Daqing Oilfield in the new year, the tight gas project management department of Daqing Drilling Engineering Company takes the lead, working with the well control department of the oil field company, Party A's drilling supervision, drilling company No. 4 and other participating units The person in charge held the second on-site acceptance and technical briefing meeting to gather joint efforts and make in-depth links in organization and coordination, equipment assurance, production connection, and technical support to ensure the safe and efficient operation of the construction well.

In terms of construction organization, the chief engineer of Drilling Company No. 4 made comprehensive overall plans and set up a special team to focus on the theory of fast and mature tight oil drilling and the construction of technical casings in adjacent wells, and made detailed technical explanations and breakdowns to achieve accurate results. Optimize the plan and process flow, provide refined drilling fluid services independently, and assign experienced technical backbones as well directors to take the lead and take the lead, actively respond to difficult challenges, keep an eye on the drilling construction dynamics, and implement real-time monitoring and real-time adjustments to the drilling construction plan and measures. Real-time optimization.

During the construction, all personnel on site worked hard, and everything "revolved around the well" to strictly implement the "five highlights". The project department tried its best to ensure the supply of materials, and the well director coordinated and communicated efficiently to ensure safety, speed and efficiency, and quality. Guarantee requirements, integrate plans, operations, and execution capabilities; the drilling team focuses on accident prevention, seizes the initiative in work, pays close attention to risk prevention and control in the four links of the team, and implements supporting implementation by comprehensively improving the drill tool assembly, technical parameters, drilling fluid performance, and formation conditions Capability, "acceleration" was achieved, the first drilling cycle was shortened by 0.41 days compared with the design, and the second drilling was completed in "one drilling". The mechanical penetration rate was 1.87 times the design, and the drilling rate increased by 2.35 meters/hour.
Up to now, the 50257 drilling team undertaking the drilling is intensively organizing the installation of rotating blowout preventers and making solid preparations before the third start.