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Good News: Sinopec Achieves New Breakthrough in “Deep-Earth Engineering”
Summary：Recently, Sinopec’s “Deep-Earth Engineering–Sichuan–Chongqing Natural Gas Base” has once again reported a significant breakthrough. The Yonghong-1 well, a key ultra-deep tight sandstone exploration well deployed by Sinopec Exploration Branch in Bazhong City, Sichuan Province, has successfully tested high-producing gas flows, marking an important new stratigraphic breakthrough in the Jurassic system of the Sichuan Basin. This discovery confirms the favorable exploration and development potential of the Jurassic tight sandstones in the Bazhong area, suggesting the prospect of establishing a new resource base for increasing reserves and boosting production in the Sichuan Basin.
Recently, Sinopec’s “Deep-Earth Engineering–Sichuan–Chongqing Natural Gas Base” has once again reported a major breakthrough. The Yonghong 1 well, a key ultra-deep tight sandstone exploration well deployed by Sinopec Exploration Branch in Bazhong City, Sichuan Province, has successfully tested high-producing gas flows, marking an important new stratigraphic discovery in the Jurassic system of the Sichuan Basin. This finding confirms the favorable exploration and development potential of the Jurassic tight sandstones in the Bazhong area, suggesting the prospect of establishing a new resource base for increasing reserves and boosting production, thereby opening up fresh resources to support reserve growth and output expansion in the Sichuan Basin.
Well Yonghong-1 has a Jurassic target formation burial depth exceeding 4,500 meters, representing an ultra-deep tight sandstone gas reservoir characterized by thin reservoirs, poor petrophysical properties, strong heterogeneity, and significant challenges in reservoir prediction.
Sinopec Exploration Branch has intensified its research and development efforts in the exploration of ultra-deep, tight sandstone reservoirs in new stratigraphic units, further identifying the primary controlling factors for reservoir development and hydrocarbon accumulation. The branch is also advancing technologies for sandbody characterization and high-quality reservoir prediction, meticulously delineating favorable targets, exploring approaches to enhance production through staged fracturing in horizontal wells, and has initiated the drilling and completion of Well Yonghong 1.
In response to the challenges posed by high fracturing pressure and strong reservoir sensitivity in the target tight sandstone of Well Yonghong 1, Sinopec Exploration Branch established an integrated geology–engineering team that successfully developed a horizontal-well fracturing technology for enhancing production in new Jurassic tight sandstone formations, achieving excellent reservoir stimulation results.
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Good News: Sinopec Achieves New Breakthrough in “Deep-Earth Engineering”
Recently, Sinopec’s “Deep-Earth Engineering–Sichuan–Chongqing Natural Gas Base” has once again reported a significant breakthrough. The Yonghong-1 well, a key ultra-deep tight sandstone exploration well deployed by Sinopec Exploration Branch in Bazhong City, Sichuan Province, has successfully tested high-producing gas flows, marking an important new stratigraphic breakthrough in the Jurassic system of the Sichuan Basin. This discovery confirms the favorable exploration and development potential of the Jurassic tight sandstones in the Bazhong area, suggesting the prospect of establishing a new resource base for increasing reserves and boosting production in the Sichuan Basin.
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