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【ECF Weekly】New Breakthroughs in Continental Shale Oil in Dagang

时间：2021-12-26 来源： 浏览：

【ECF Weekly】New Breakthroughs in Continental Shale Oil in Dagang

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ECF国际页岩气论坛

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Energy China Forum releases weekly reviews of China shale oil & gas updates every Sunday. For more China shale oil & gas information, please contact ECF editor. 

ECF China Shale Weekly Review -Dec 26, 2021

Exploration & Production

        

【 CNPC - New Breakthroughs in the  Continental Shale Oil in Dagang Oilfield 】 The shale oil output of Dagang Oilfield has reached 100000 tons in 2021. At present, the daily output is stable at more than 300 tons. This is another landmark new achievement made by Dagang Oilfield in the practice of exploration and development of scale benefits of continental shale oil after the breakthrough of industrial development of three sets of main shale strata in Bohai Bay basin. Since the beginning of this year, Dagang Oilfield has vigorously promoted the three major projects of increasing the production of new shale oil wells, stabilizing the production of old wells and taking measures to increase production. Four high-yield wells with a daily output of more than 100 cubic meters have been successively obtained in Kong2 section of Cangdong sag, with a maximum daily output of 208 cubic meters, setting the highest record of continental shale oil production in China. Up to now, the cumulative output of shale oil in Dagang Oilfield has exceeded 180000 tons, which has become an important resource for the stable production of this oilfield.

Exploration & Production

         
【 CNPC - 10 days in Advance! Changqing Oilfield Produces Another 60 Million Tons 】 As of 14:00 on December 17, PetroChina Changqing Oilfield in Ordos Basin produced 24.415 million tons of oil and 44.67 billion cubic meters of natural gas, and the oil and gas production reached 60 million tons 10 days ahead of last year.Changqing Oilfield is not only the largest oil and gas field in China, but also the largest oil and gas field in China in recent 10 years. As the main source of winter supply in North China and Shaanxi Gansu Ningxia region, the natural gas produced by Changqing Oilfield this year has been equal to that of last year. According to the current gas production of 135 million cubic meters per day, the annual natural gas production will exceed 47 billion cubic meters, a record high.
【 CNOOC - Announces New Breakthroughs in Onshore Oil and Gas Development 】 Zhonglian coalbed methane Co., Ltd (hereinafter referred to as Zoomlion) the daily gas production of natural gas exceeded 14 million cubic meters for the first time, an increase of 40% over the same period last year, ranking first among coalbed methane enterprises in China. New breakthroughs have been made in the production of unconventional natural gas in the eastern edge of Qinshui Basin and Ordos Basin. Calculated by using about 0.5 cubic meters of natural gas per day for a family of three, it is equivalent to meeting the demand of 28 million families per day Gas demand. In 2021, Zoomlion focused on increasing reserves and production, strengthened scientific and technological research and development, established an excellent and fast drilling technology system, greatly improved the effectiveness of exploration and development, increased drilling speed and efficiency, improved well completion quality and production, increased the daily efficiency of coalbed methane drilling by 51% year-on-year, and increased the average mechanical drilling speed of tight gas by 15% year-on-year. More than 640 wells were put into operation throughout the year, 3 stations were newly built and 3 stations were reconstructed and expanded.

Tech

         

【 Breakthrough in Shallow Gas Production Technology in Coalbed Methane and Oil-gas Symbiotic Areas 】 Based on the shale gas development process, Xi’an Research Institute of China Coal Science and industry group innovated and adopted the coal measure gas development horizon optimization technology, large dip horizontal well drilling technology, extra thick reservoir stimulation and transformation technology and coal measure gas drainage and production technology, breaking through the technical bottleneck of shallow coal measure gas development in the area of coalbed methane and oil-gas symbiosis. The application in the Haishiwan Coal Mine of Yaojie Coal and Electricity Group shows that the current daily gas production capacity of a single well in this mining area is as high as 2,580 cubic meters, with a maximum cumulative gas production of 24.5 × 104 m3; The mining cost of the protective layer is saved by 267 million yuan, the excavation cost of the bottom extraction roadway is saved by 106 million yuan, and the utilization of the extracted coal system gas can create a profit of 114 million yuan.

Past Weekly News

【ECF Weekly Dec 19，2021】Sinopec, another break in  shale oil in Subei Basin

【ECF Weekly Dec 12, 2021】Sinopec, new break in deep shale in Dingshan Block

【ECF Weekly Dec 5, 2021】CNPC, Sinopec Signs Strategic Coop Framework AGRT
     

Source: Energy China Forum

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