Weizhou 6-12 and 12-8 Oil Fields

Summary Information

• Operator: CNOOC
• Country: China
• Location: Beibu Gulf
• Production start:
• Partners: Roc Oil
• Type: Oil / Gas
• Estimated Reserves:
• Production Volume:

Description

• The development consists of two wellhead platforms separated by a combined processing platform bridged to CNOOC Weizhou 12-1A integrated platform, using existing water injection and gas processing facilities.
• There are 6 wells on the WZ12-10 platform and 12 wells on the WZ8-8 platform
• The WZ12-8 East Project consists of 6 new wells and a platform, connected to the to the existing WZ12-8W wellhead platform by an 8km subsea pipeline

Contractors

• -

History

• 2002 - ROC entered the offshore 22/12 block and discovered the Weizhou 6-12 oil field
• 2006 - The Weizhou 6-12S-1 exploratory well was drilled
• 2010 - CNOOC Limited opted to join the development project with a 51% interest
• 2011 - Final investment decision was made
• 2013 - Production started
• 2022 - Production started at the WZ12-8 East Project

Geology

• The reservoirs range from the fluvial-lacustrine sandstone of the Eocene quicksand granite layer, to the shallow sea sandstone of Jiaowei in the Miocene, and to the Weizhou sandstone of the Oligocene.
• The quality of the oil ranges from light to heavy, with low to medium viscosity and some waxy crudes.

Links

1. Roc Oil Beibu Gulf
2. Roc Commences Production From WZ12-8E Project, Beibu Gulf, Offshore China