Increasing reserves and stabilizing production in old oil regions-remembering the 2020 National Science and Technology Progress Second Prize Project Fine Oil and Gas Exploration Technology in Faulted Basins

The “Fine Exploration Theory and Technology and Demonstration Application for Oil and Gas in Faulted Basins—Taking Jiyang Depression as an example” jointly completed by Sinopec Shengli Oilfield Company, China University of Petroleum (East China), and China University of Petroleum (Beijing) recently won the 2020 National Second prize for scientific and technological progress

The Jiyang Depression under the jurisdiction of Shengli Oilfield is recognized as the most complicated faulted basin in the world.

Beginning in 2011, the project team based on the fine exploration of the Jiyang Depression, shouldering the glorious mission of increasing reserves and stabilizing production in the old oil area of ​​the continental fault basin

In June 2020, Chengbei 830 well received a high-yield industrial oil stream with a daily output of 179 tons

The breakthrough from shallow to deep, from point to surface, benefited from the breakthrough of fine exploration theory and technology

Guided by the concept of fine exploration, Shengli Oilfield takes the lead in cooperating with universities and colleges to tackle key problems, aiming at high exploration level areas, the whole basin, the whole strata, multiple types, and multiple scales to finely understand the remaining resources, effective reservoirs, and the law of accumulation.

Wang Yongshi used common sayings such as "water to clear, no fish", "salted vegetables are not easy to spoil", "salted duck eggs produce oil" and other common sayings to explain the salinization and hydrocarbon-rich patterns of continental facies, breaking through the traditional understanding of hydrocarbon generation from lacustrine source rocks

Under normal conditions, the deeper the burial, the worse the reservoir

Ordered accumulation has found the distribution laws of different types of oil reservoirs, broke through the limitations of understanding of the laws of oil and gas accumulation in fault basins, developed the theory of continental oil and gas accumulation, and filled the gaps in exploration laterally

Seismic exploration has achieved a leap from B-ultrasound to high-precision CT.

Since 2011, the project has supported the newly added reserves of 1.