Shale gas exploration in the Sichuan Basin has made major discoveries

On October 18, the reporter learned from the Sinopec News Office that the Jinshi 103HF exploration well deployed by the Southwest Petroleum Bureau of Sinopec in the Sichuan Basin obtained high-yield and stable industrial airflow, with a daily output of 258,600 cubic meters of natural gas and 387.
8 billion cubic meters
of geological resources.
This is the first time that China has made a major breakthrough in shale gas exploration in the formation of the Cambrian Xiaozhusi Formation, and there is a new position for shale gas large-scale storage
.

Shale gas reservoir reconstruction and construction of Southwest Petroleum Bureau of Sinopec

The Sichuan Basin mainly has two sets of main marine shale strata of Longmaxi Formation and Cambrian Xiaozhusi Formation, of which Longmaxi Formation has achieved large-scale development, such as China's first deep shale gas field - Weirong shale gas field
.
The Cambrian Xiaozhusi Formation is the most promising marine shale gas exploration target
in the future.
This breakthrough in this new layer is of great significance, which will provide strong support for shale gas exploration and development from a single layer of Longmaxi Formation to the in-depth promotion of new areas, new layers and new types of fields, and help the construction of
a national natural gas (shale gas) 100 billion cubic meter production capacity base in Sichuan-Chongqing region.

Shale gas well station of Southwest Petroleum Bureau of Sinopec

The Southwest Petroleum Bureau strengthened research and discovered a new type of silty shale gas exploration target layer
.
In recent years, the company has focused on this block, actively changed its thinking, deepened its geological understanding, changed the traditional concept of only looking for shale gas in organic black shale, established a new evaluation standard for Cambrian shale strata, and discovered a new type of silty shale gas exploration target layer
.
At the same time, in the face of the thin thickness of high-quality shale in this layer, the large difference in longitudinal stress, and the difficulty of scale transformation, the company's geological and engineering integration tackles silty shale transformation technology, innovatively adopts new fracturing process and fracturing fluid system, and multi-stage fracturing transformation, which lays the foundation
for Jinshi 103HF well to obtain high production.

Shale gas drilling construction of Southwest Petroleum Bureau of Sinopec

In the past ten years, the Southwest Petroleum Bureau has vigorously increased its oil and gas exploration and development efforts, built the world's first ultra-deep and highly sulfur-containing biological reef gas field of more than 7,000 meters - Yuanba gas field, and discovered China's first deep shale gas field - Weirong shale gas field, etc.
, and implemented new storage
positions of more than 100 billion cubic meters such as Xujiahe in Hexing Field, Longmaxi Formation in Yongchuan, and Zhusi Formation in Jingyan Xiaojia 。 The company's annual natural gas output increased from 2.
82 billion cubic meters in 2012 to 8.
001 billion cubic meters in 2021, with a cumulative production of 52.
95 billion cubic meters of natural gas, making it the largest natural gas producer in Sinopec, making important contributions
to ensuring national energy security, promoting the realization of the "dual carbon" goal and economic and social development.