The Surging News reporter Yang Yang
The Paper learned from Sinopec Group on December 15 that the company's shale oil exploration has made another strategic breakthrough, and three shale oil exploration wells deployed by the East China Petroleum Bureau in the Northern Jiangsu Basin have obtained high-yield shale oil flows.
Among them, recently, the Qinfa 1HF well has produced 55 tons of oil per day; the Shuai page 3-7HF well has tested 20 tons of oil per day; the previously deployed sand stack 1 well has been self-sprayed for 392 consecutive days, with a cumulative production of 11,000 tons of shale oil. According to the preliminary evaluation, Sinopec has implemented a favorable area of 420 square kilometers and a shale oil resource of 350 million tons in the Qintong Depression area of the Northern Jiangsu Basin, demonstrating the good prospects for exploration and development in the area and opening up a strategic replacement position for crude oil resources in China's Northern Jiangsu Basin.
Shale oil refers to unconventional petroleum resources stored in tiny pores in shale layers. At present, only North America has achieved large-scale commercial development of shale oil abroad. Shale oil is an important strategic resource in China, and accelerating the exploration and development of shale oil is of great significance to ensuring national energy security.
It is reported that the shale oil in the Northern Jiangsu Basin is buried at a depth of more than 3,000 meters, the pressure is large, the storage space is more delicate than the hair, and the development is difficult, which brings great challenges to the process technology such as drilling and fracturing. Combined with the actual exploration in the Northern Jiangsu Basin, Sinopec East China Petroleum Bureau strengthened the research on the formation conditions and enrichment laws of continental shale oil, adhered to the principle of "three-dimensional exploration, often non-balance", and achieved a major breakthrough in shale oil exploration.
Previously, in January 2021, Sinopec Exploration Branch tested a high-yield shale oil and gas well, Taisha 1, in the Fuling area of Chongqing, and preliminarily predicted that the shale gas resources in the region would be 200 billion cubic meters and the condensate resources would be 28 million tons. In November 2021, Sinopec Shengli Oilfield made significant progress in the exploration and development of shale oil in the eastern exploration area, reporting the first batch of predicted shale oil geological reserves of 458 million tons, and preliminarily estimating that the shale oil resources in the region reached more than 4 billion tons, which will become a realistic new field for increasing reserves and construction in eastern China.
Editor-in-Charge: Li Yuequn