HZ 27-5-1 completed in late March 2020 without result reported.   CNOOC â Shenzhen spudded a new-field wildcat (NFW) on 20 February 2020 in the Pearl River Mouth Basin of the South China Sea. HZ 27-5-1 (Huizhou 27-5-1), located in the Huizhou Sag in a water depth of about 110 m area, is targeting the Mio-Oligocene clastic play. âNanhai 7â S/S is used for the drilling operation and it is expected to complete by mid-April 2020.   The Huizhou Sag is also one of the important exploration focuses for CNOOC in the Pearl River Mouth Basin. For the past few years extensive drilling progress has been carried out.   In 2019, a few wells were drilled in the Huizhou Sag, with result unreported yet, such as HZ 22-8-1, HZ 20-1-1d, HZ 25-10-1 and HZ 14-1-1d, etc. There are also a few discoveries made earlier in the area, tested oil in the Miocene Zhujiang Formation, however no further appraisal drilling work has been done to those discoveries due to possible small size and uneconomic at that time. These discoveries include HZ 21-1S, HZ 27-1, 27-4, 27-3, HZ 26-2-1 and HZ 26-3-1 etc. While previous dry holes drilled in the Huizhou Sag included HZ 22-2, HZ 23-1/23-2 and HZ 14-2, etc.    Background Information  Huizhou Sag is an oil-rich generated source kitchen in the Pearl River Mouth Basin, there are several existing producing fields in the area, such as Huizhou 26-1, 21-1, 32-2, 32-3, Huizhou 19-1/2/3, and Huizhou 25-3/4/8 fields cluster etc., those fields together have already produced a cumulative of over 400 million bbls of oil as of 2018. While the Huizhou 32-5 oilfield comprehensive adjustment/Huizhou 33-1 oil field joint development project commenced production a year earlier in January 2019.
Shenzhen â HZ 27-5-1 â Completed without result reported â PRMB, South China Sea