The reporter learned from the Great Wall Drilling Western Drilling Branch that the Su 11-42-66 well in Changqing Oilfield, which was constructed by the company's 40500 team, achieved a footage of 1,621 meters on the first day after the second opening, successfully achieving the speed-up goal of "miles per day". This is due to the company's innovative practice of "strengthening drilling parameters", which maximizes the performance of equipment under the existing equipment conditions.
In order to speed up the exploration and development process of the Ordos Basin, since the beginning of this year, Great Wall Drilling has continuously summarized the previous experience of drilling speed-up, combined with the actual situation of the pump after the upgrade of the basic equipment, and promoted the "extreme drilling method" through the application and practice of "enhanced drilling parameters" to fully release the speed-up potential. Up to now, the company's average mechanical drilling speed in the Changqing area has reached 12.1 meters per hour, the footage of a single machine and a single team has increased by 2,687 meters year-on-year, and the average drilling and completion cycle of the construction wells has been shortened by 28.38% year-on-year. The normalization of "daily advance of kilometers" on the first day of the second opening of the Changqing Shenmu Gas Field has been fully realized, and the two wells constructed in the Sulige block have achieved "daily advance of miles", and the completion rate of the "one-trip drilling" technology continues to lead the Changqing Oilfield.
"In the past, when drilling quickly, the mud pump displacement was 32 to 35 liters per second. Now, after 'enhanced drilling parameters', the mud pump displacement can reach a maximum of 50 liters per second." said Shen Dongjie, chief engineer of the Wushi Banner area of ??the Western Drilling Branch.
In order to meet the demand for "enhanced drilling parameters", Great Wall Drilling collected the drilling parameters of each well this year, summarized and analyzed them in time; cooperated with drill bit manufacturers to improve the number and shape of blades, cutting tooth materials and number of tooth layouts, water hole size and number, and designed a personalized drill bit suitable for various formations in the Ordos Basin. Zhu Chunguang, a second-level engineer of the Western Drilling Branch, said: "At present, the 'enhanced drilling parameters' speed-up supporting technology has strong promotion and applicability, and can provide reference and reference for the speed-up of horizontal wells in the Sulige block and other regions." So far, the cumulative drilling footage of Great Wall Drilling in various blocks of Changqing Oilfield this year has crossed the 200,000-meter mark 23 days ahead of schedule year-on-year, breaking 11 construction records.