Oil&Gas
WZ 6-12 & WZ 12-8 (Weizhou) - Block 22/12 - Beibu Gulf Project Development
2018-08-09 10:06  点击:1
VIP:1级

Project Profile


Value: Undisclosed
Location: Offshore China
Reserves: 1.1 million barrels of oil
Start-up Year: 4Q 2012

The Beibu Gulf project consists of three fields, Wei 6-12, Wei 6-12 S and Wei 12-8, situated on Block 22/12 offshore China. CNOOC Limited operates the project with a 51% interest; while Roc Oil holds 19.6%; Horizon Limited holds 14.7%; Petsec holds 12.3%; and Oil Australia holds the remaining interest. As of March 2013, this changed to CNOOC 51.0%, Roc Oil (China) Company 19.6%, Horizon Oil (Beibu) Ltd and Horizon Oil (Nanhai) LLC1 26.95%, and Oil Australia Pty Ltd (Majuko Corp) 2.45%.

In 2002, Roc Oil drilled the first well, discovering the Wei 6-12 oil field. Two years later, the company drilled an appraisal well on the Wei 12-8 east oil field, which successfully confirmed the presence of oil, but also indicated that the oil was viscous, so commercial development could not be declared. In April 2006, an exploration well, Wei-6-12S-1 made a potentially significant oil discovery. The well found 95 metres of hydrocarbon pay, mainly oil, with good reservoir characteristics. Testing of three separate zones resulted in a total collective stabilised flow rate of 5,750 bopd. An appraisal sidetrack intersected 16 metres of net oil pay over four sands, two of which were not present in the discovery well. On September 27, 2008, CNOOC declared the area commercially viable. First oil was anticipated by the end of 2012. In 2016, Sinopec made a high oil and gas discovery in a test well in the Beibu Gulf, offshore China at the Weizhou 4 well. The Weizhou 4 was one of the highest yielding wells in the area in the past decade.


Operators:

CNOOC: Operator with 51% interest

Roc Oil: 19.6% interest

Horizon Oil (Beibu) Ltd and Horizon Oil (Nanhai): 26.95% interest

Oil Australia: 2.45% interest


Contractors:

COSL: Drilling services using the HYSY 93 jack-up rig

Hilong Marine Engineering (Hong Kong) Limited (wholly-owned subsidiary of Hilong Holding Limited): Contract for the provision of offshore pipe-laying service signed on November 14, 2014 with a total contract value of US$29,8 million. The provision of offshore pipe-laying service, as contemplated under the contract, will be performed by Hilong 106, a pipe-laying vessel of the company. The “Hilong 106” was built by Shanghai Heavy Industries and purchased by Hilong in late December 2013.
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