China’s CNOOC Ltd has increased output from offshore Block 22/12 in the Beibu Gulf and more wells are planned to further enhance production this year.
CNOOC used the jack-up Haiyang-943 for the campaign at the WZ 6-12 fields which enhanced production through the replacement of downhole electrical submersible pumps and reperforation of non-producing zones in one well.
Overall, block partner Horizon Oil said the workovers during the March quarter had seen gross production increased from 7800 barrels per day to 9300 bpd.
Another workover programme completed this month involving three wells at the WZ 12-8W producing fields was completed this month which Horizon said had seen output climb even further, rising to about 10,000 bpd.
CNOOC plans to further enhance production at Block 22/12 with two infill wells which are planned to spud in mid-2018 on the WZ 12 8W field.
Horizon also revealed Monday the joint venture was closing in on a final investment decision for the WZ 12-8E field, with CNOOC targeting a decision during the third quarter.
The overall development plan for WZ 12-8E envisages an initial three wells being drilled from a leased platform and tied back to the existing Block 22/12 infrastructure with a flexible flow line.
The phased development would also see further production wells added later, with well design and location to be determined by the performance of the initial wells.
Horizon said Monday the joint venture was nearing finalisation of the core commercial terms for the leasing of the mobile production platform to be used at the field.
CNOOC operates Block 22/12 with a 51% interest, Horizon holds a 26.95% stake, while Roc Oil and Majuko hold a 19.6% and 2.45% interest, respectively.
This article was originally published on upstreamonline.com