China’s CNOOC Restricted has began manufacturing at its Liuhua 11-1/4-1 Oilfield Secondary Improvement Challenge.
The challenge is positioned within the jap South China Sea and consists of two oilfields, Liuhua 11-1 and Liuhua 4-1, with a mean water depth of roughly 1,001 ft (305 meters), CNOOC mentioned in a information launch.
The primary manufacturing services embrace a brand new deepwater jacket platform Haiji-2 and a cylindrical floating manufacturing, storage and offloading unit (FPSO) Haikui-1. CNOOC mentioned that it plans to fee 32 improvement wells. The corporate is the operator of the asset with a 100% curiosity.
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The challenge is anticipated to realize peak manufacturing of roughly 17,900 barrels of oil equal per day (boepd) in 2026, with the oil property being heavy crude.
CNOOC CEO and President Zhou Xinhuai mentioned, “It’s the first oilfield in Asia to be developed with the ‘Deepwater Jacket Platform + Cylindrical FPSO’ mode. The corporate has overcome numerous technological challenges to finish the challenge. Whereas revitalizing the deepwater oilfields with authentic oil in place over 100 million tons, the brand new mode has considerably diminished the development and manufacturing prices. It gives a Chinese language answer for the environment friendly improvement of comparable deepwater oil and fuel fields”.
In the meantime, CNOOC introduced that it has drilled a pure fuel effectively within the ultra-deepwater Liwan 4-1 construction within the Pearl River Mouth Basin.
The effectively was examined to provide 430,000 cubic meters per day of absolute open movement pure fuel, “marking the primary main exploration breakthrough in ultra-deepwater carbonate rocks offshore China,” in keeping with a separate information launch.
The effectively is positioned in Baiyun Sag, the most important hydrocarbon-rich sag within the Pearl River Mouth Basin, about 300 kilometers southeast of Shenzhen with a water depth of practically 1,640 meters. The effectively was drilled to a vertical depth of practically 3,000 meters, accomplished at a depth of practically 4,400 meters, and encountered a fuel pay zone of roughly 650 meters within the horizontal part, in keeping with the discharge.
The effectively has revealed promising exploration prospects within the ultra-deepwater Globigerinid limestone in China, and successfully promotes the pure fuel exploration course of in Baiyun Sag, CNOOC mentioned.
Xu Changgui, CNOOC Chief Geologist, mentioned, “Beforehand, exploration in China’s ultra-deepwater areas primarily centered on clastic rocks. The success of this effectively has, for the primary time, revealed the large potential of carbonate rocks in China’s ultra-deep waters, marking vital breakthroughs in each exploration understanding and operational strategies. As well as, this discovery is near the present manufacturing services of Liwan 3-1 fuel discipline, which might be utilized to develop the brand new discovery, thereby, enabling financial and environment friendly improvement of pure fuel sources within the deep waters of the Pearl River Mouth Basin”.
Earlier within the month, CNOOC additionally started manufacturing at its Wushi 17-2 Oilfields Improvement Challenge. The challenge is positioned in Beibu Gulf, with a mean water depth of roughly 91.9 ft (28 meters). The primary manufacturing services embrace a brand new wellhead platform and an oil and fuel processing terminal. CNOOC operates the challenge and holds an 80 % curiosity.
CNOOC mentioned it plans to fee 43 improvement wells, together with 28 manufacturing wells, 14 water-injection wells and one appraisal and water supply effectively. It’s anticipated to realize a peak manufacturing of roughly 9,900 boepd in 2026, the corporate famous.
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