On October 27, it was learned from the production and operation section of Daqing Oilfield Drilling Engineering Company No. 2 that the GY2-Q3-H3 well, which was drilled by the Jiandao 1202 drilling team of Daqing Oilfield, was successfully drilled to a depth of 5147 meters, setting a new record of 2565 meters in the horizontal section of the block and a drilling cycle of only 14.42 days, and became the first drilling team in China to build Gulong continental shale oil with a drilling cycle of more than 15 days.
Since the beginning of this year, the company has adhered to the market-oriented transformation and development as the axis, taken the initiative to attack, optimized the allocation of resources, and competed on the same stage with a number of drilling enterprises. As the vanguard of the company's advance into the Daqing Oilfield Shale Oil No. 2 platform, the 1202 drilling team takes the rejuvenation of oil to serve the country as its own responsibility, implements the new development concept, carries forward the Daqing spirit of iron man spirit and the spirit of the sharp knife, implements the "three major events", focuses on the three main lines of "drilling speed, safe production, cost reduction and efficiency", summarizes the construction experience of the same type of wells on the same platform, gives full play to the advantages, shows the strength, and asks for benefits from management, production, and safety and environmental protection. This year, 6 drilling, 4 completed drilling, cementing quality rate of 100%, in the completion of the GY2-Q3-H3 well three-open average mechanical drilling speed of 33.26 meters per hour, three-open drilling cycle of 8.98 days, setting a record for the shortest drilling cycle in the Daqing oilfield shale oil market.
It is understood that the GY2-Q3-H3 well is a large displacement horizontal well. This well is a horizontal well for exploration and development of the No. 2 platform of the oilfield, which uses high-end automation equipment such as power cat road, iron driller, drilling platform manipulator, drilling rig integrated control device and remote real-time monitoring system, and realizes the intelligent and informatization of drilling production. The team implements the "mud does not land" technology, green drilling, clean production, so that the drilling fluid, rock chips separation, to achieve the resource of mud can be reused.
In the face of problems such as easy collapse of the well section of Daqing shale oil block and difficulty in mud maintenance, Daqing Drilling and Drilling Company II scientifically formulated technical solutions, optimized drill bits and hydraulic parameters, used highly inhibitory potash polymers to solve mud problems, adjusted and optimized the structural combination of drilling tools, and ensured the stability of the directional tool surface.
With the help and support of oilfield, drilling, and the company's stationed well technical "experts" and relevant units, the 1202 team strictly implemented the company's "three major and two high" radical drilling methods and lean drilling production mode, adhering to the idea of unsafe advance of one meter and no hit, which greatly shortened the drilling cycle. This team takes safety speeding up, scientific speed up, and hard work speed up as the speed up concept, overall planning, meticulous analysis of design requirements, refinement of technical measures and speed up plans, the formulation of detailed construction measures at each stage, and from the moving operation, the first, second, third opening acceptance, drilling construction and other key links to make a fuss, team leader Li Wenliang and vice captain Fu Yunlong, Zhao Jianwei, Huo Yuanqing, Zhao Youbin 24 hours to sit on the post, engineering and technical personnel Li Jinli, Li Zonglin, Zhang Wei, Wang Haoyu and other key links to make a fuss, Reasonably adjust the drilling parameters according to the drilling time and formation changes, monitor the trajectory changes of the wellbore at any time, promote safety speed in different processes and stages, and make every effort to ensure safe production and speed up efficiency. During the construction, it also achieved five new blocks, including 1331 meters of 24-hour drilling in the second opening, 1.29 days of drilling cycle of the second opening technical set, and 3 wells of the platform, which achieved five new blocks such as double cementing within 24 hours, 0.96 days of solidification to three drilling (during which it involved the conversion of water-based mud and oil-based mud) and one opening to three opening of drilling, and the horizontal section of 2565 meters was only used for 14.42 days. (China Daily Heilongjiang Reporter Station)
Source: China Daily