Chinese oil network news as of November 8th, the main external supply -- Changqing Oilfield gas plant four, this year the construction of new capacity toujing number has more than 20% last year. Not only that, through the old wells tapping the potential, our factory has accumulated 260 million cubic meters of natural gas production." Zhou Yang, deputy chief of production and operation Department of four gas production plant, said.
Changqing gas production plant four responsible for the development of the Soviet Union in the field, is the earliest in Sulige block development area, has more than 2000 production wells. Most of the gas wells enter the "middle and old age" stage, with the rapid decline of production, the high maintenance cost and the lower comprehensive exploitation efficiency, which become a stumbling block to the development of gas fields.
In 2017, the factory based on the cost reduction, carefully organize the field construction project, ensure productivity construction speed, quality; fully grasp the old stable work, implementation of capacity building and the old stable double harvest. Up to now, this factory has drilled 207 wells and drilled 185 wells, of which 12 are horizontal wells, and the production capacity is expected to run more than expected.
The old wells production, gas production plant four through technological innovation and technological improvement, summed up the formation to drainage gas, system optimization, pressure workover measures such as tapping technology series, clutching the old stable "method". Up to now, the gas production plant four has carried out 1.15 wells of drainage gas production this year, increasing production by 257 million cubic meters. This year the sidetrack horizontal wells two wells, drilled Su 36-20-11CH horizontal length of 600 meters, sandstone drilling rate of about 77%, the effective reservoir drilling rate of 48.3%, good prospects.
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