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Sinopec News.
com recently, entrusted by the National Energy Administration, the large oil and gas field and coalbed methane development major special project implementation management office organized experts in Beijing to undertake the national major oil and gas special "Thirteenth Five-Year" project "Low Abundance" led by the North China Oil and Gas Branch "Key Technologies for Tight and Low Permeability Oil and Gas Reservoir Development" and the four subordinate subjects have undergone comprehensive performance evaluation and acceptance
.
The expert group believed that the project and each subject had achieved remarkable results, completed the objectives and tasks in an all-round way, and agreed to pass the acceptance
"Key Technologies for the Development of Low Abundance Tight and Low Permeability Oil and Gas Reservoirs" is the 48th item in the major national science and technology project "Large Oil and Gas Fields and Coalbed Methane Development".
Its goal and mission is to pass the low abundance, tightness and low permeability of the southern and northern margins of the Ordos Basin.
Research on key technologies for reservoir development and technology for enhanced oil recovery by gas injection in tight and low-permeability reservoirs in the Ordos Basin, research on key technologies for the development of complex tight sandstone gas reservoirs in the slope belt of the West Sichuan Sag, and establish an economic and effective development model for low-abundance tight and low-permeability reservoirs , To form a series of development supporting technologies to provide theoretical and technical guidance for the economic and effective development of low-abundance, tight and low-permeability oil and gas reservoirs
.
At the same time, enrich and develop China's continental oil and gas development theories and technical systems to provide guarantee for Sinopec's oil and gas development positions and national energy security and economic construction
The project through the "13th Five-Year Plan" period of research and practice, innovation and formation of four major achievements
.
One is the key technology for the development of complex water-bearing tight sandstone gas reservoirs
Clarified the high-yield enrichment model of narrow channel tight sandstone gas reservoirs, formed the fine characterization and fluid prediction of narrow channel sand, the three-dimensional development and production of narrow channel tight sandstone gas reservoirs, and the fine staged fracturing technology for horizontal wells, realizing the slope belt of the western Sichuan depression.
Narrow channel tight sandstone gas reservoirs are developed at a scale of 1.
2 billion cubic meters per year; the fourth is the key technology for the development of fractured reservoirs
.
The concept of fractured body reservoir was put forward, and the fine description technology and supporting development technology of fractured body reservoir were established, laying the foundation for the next step of large-scale production
.
The research results have led to the technological direction of the development and utilization of lower-grade tight reserves at the basin edge, laying a solid foundation for the development of the "14th Five-Year Plan"
The project has made outstanding contributions and significant economic benefits
.
During the "Thirteenth Five-Year Plan" period, the optimal development zone has reserves of 188.
(Ding Jingchen and Xu Dongmei)
