CNOOC Ltd. has begun manufacturing within the Bozhong 19-2 Oilfield Improvement Challenge in central Bohai Bay, the seventh oil and gasoline undertaking put onstream by the Chinese language state-backed firm this 12 months.
The oil and gasoline explorer and producer expects the undertaking to succeed in 18,800 barrels of heavy crude per day in peak manufacturing in 2025. CNOOC Ltd., majority-owned by China Nationwide Offshore Oil Corp. (CNOOC), goals to fee 59 improvement wells within the undertaking, 34 of which might be for manufacturing.
“Good engineering and standardized building have remarkably lowered the undertaking’s building cycle”, CNOOC stated in a press launch. “It has strongly promoted the environment friendly improvement of offshore oil and gasoline sources and laid a strong basis for the manufacturing progress within the Bohai oilfields, the biggest crude oil manufacturing base in China”.
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Bozhong 19-2 has a mean water depth of about 20 meters (65.6 toes). The manufacturing amenities embrace a brand new central processing platform and 4 unmanned wellhead platforms. CNOOC Ltd. is the only proprietor.
Late final month CNOOC Ltd. put on-line the Shenhai-1 Section II Pure Gasoline Improvement Challenge within the northern South China Sea. It expects the Qiongdongnan Basin undertaking to succeed in 162 million cubic toes and three,931 barrels of condensate per day in peak manufacturing in 2025. CNOOC Ltd. goals to fee 12 improvement wells within the second-phase undertaking.
“The undertaking has efficiently overcome the world-class problem of deepwater high-pressure oil and gasoline reservoir improvement”, CNOOC Ltd. chair Wang Dongjin stated in a press release September 27.
“It witnesses efficient large-scale conversion of reserves into manufacturing from the ‘South China Sea trillion-cubic-meters-level gasoline area’, and gives secure provide of unpolluted vitality for the financial and social improvement of South China.
“Sooner or later, CNOOC Restricted will speed up the event of latest high quality productiveness of marine vitality and strengthen the exploration and improvement of deepwater oil and gasoline sources, thereby additional contributing to the high-quality improvement of China’s offshore oil business”.
Shenhai 1 began operation June 2021 utilizing the world’s first deepwater semi-submersible oil manufacturing and storage platform, based on the 100% operator.
The second-phase undertaking has a mean water depth of about 900 meters (2,952.8 toes). The manufacturing amenities embrace a brand new fastened manufacturing platform and three centralized subsea wellheads.
Earlier in September CNOOC Ltd. stated the Liuhua 11-1/4-1 Oilfield Secondary Improvement Challenge within the japanese South China Sea had began manufacturing. It expects the undertaking, which consists of oilfields Liuhua 4-1 and Liuhua 11-1, to succeed in round 17,900 barrels of oil equal a day (boed) in peak output in 2026. CNOOC Ltd. goals to fee 32 wells within the undertaking.
Liuhua 11-1/4-1 is the primary oil undertaking in Asia “to be developed with the ‘Deepwater Jacket Platform + Cylindrical FPSO’ mode”, CNOOC Ltd. chief govt and president Zhou Xinhuai stated in a media launch September 19. The manufacturing amenities embrace a brand new deepwater jacket platform and a cylindrical floating manufacturing, storage and offloading (FPSO) unit. Liuhua 11-1/4-1 has a mean water depth of round 305 meters (1,000.7 toes).
“Whereas revitalizing the deepwater oilfields with unique oil in place over 100 million tons, the brand new mode has considerably lowered the development and manufacturing prices”, Zhou stated. “It gives a Chinese language answer for the environment friendly improvement of comparable deepwater oil and gasoline fields”.
CNOOC Ltd., listed on the Shanghai Inventory Trade and the Hong Kong Inventory Trade, is the only developer.
On September 4 it stated it had began up the Wushi 17-2 Oilfields Improvement Challenge, situated within the Beibu Gulf in water depths of roughly 28 meters (91.9 toes) on common. CNOOC Ltd. expects the undertaking to realize about 9,900 boed in peak manufacturing 2026. It plans to fee 43 improvement wells, 28 of which might be manufacturing wells. CNOOC Ltd. operates the undertaking with an 80 p.c curiosity.
Earlier than the 4 tasks put onstream over the past two months, CNOOC Ltd. began up three tasks in 2024: the Suizhong 36-1/Luda 5-2 Oilfield Secondary Adjustment and Improvement Challenge, the Bozhong 19-6 Gasoline Area 13-2 Block 5 Properly Web site Improvement Challenge and the Wushi 23-5 Oilfields Improvement Challenge.
“Technological breakthroughs made the Firm extra aggressive out there”, CNOOC Ltd. stated in a monetary report August 28. “Progress in exploration principle and know-how guided the invention of a number of oil and gasoline fields similar to Lingshui 36-1, Bozhong 8-3 South and Longkou 7-1.
“By way of improvement and building, Liuhua 11-1/4-1 Oilfield Secondary Improvement Challenge adopted the modern mode of ‘deep-water jacket platform + cylindrical FPSO’, making a brand-new answer for the environment friendly improvement of deepwater oil and gasoline fields in offshore China.
“For drilling and completion, the Firm drilled an ultra-deep further prolonged attain nicely in Enping 21-4 oilfield, the primary one in every of its sort, setting new data for the deepest offshore drilling depth and horizontal size in offshore China. The nicely would considerably enhance manufacturing effectivity of the undertaking”.
On September 10 CNOOC Ltd. declared “the primary main exploration breakthrough in ultra-deepwater carbonate rocks offshore China” after drilling almost 3,000 meters (9,842.5 toes) deep into the Pearl River Mouth Basin.
The nicely sits in a water depth of almost 1,640 meters (5,380.6 toes) within the Baiyun Sag, the largest hydrocarbon sag within the Pearl River Mouth Basin based on the corporate. The overall depth was almost 4,400 meters (14,435.7 toes).
“Beforehand, exploration in China’s ultra-deepwater areas primarily centered on clastic rocks”, the corporate’s chief geologist, Xu Changgui, stated then. “The success of this nicely has, for the primary time, revealed the big potential of carbonate rocks in China’s ultra-deep waters, marking vital breakthroughs in each exploration understanding and operational methods”.
Within the first half of 2024 CNOOC Ltd. produced 362.6 million boe, a 9.3 p.c year-on-year improve and the corporate’s highest manufacturing within the January–June interval.
To contact the writer, electronic mail jov.onsat@rigzone.com
