LF 9-8-1 completed in late April 2020 without result reported.  CNOOC â Shenzhen spudded a NFW in the PRMB Basin, South China Sea, on 28 March 2020. LF 9-8-1, located in the Lufeng Sag in a water depth of 150 m area, has target in the Mio-Oligocene clastic play. âNanhai 2â S/S is used of the drilling operation.   In 2019 CNOOC made a oil discovery, LF 9-4-1, in this area.  In addition, CNOOC drilled LF 9-6-1 in 2017 as a dry hole and drilled LF 9-2-1 in 2003 also without success in this area.   The Lufeng Sag is 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, CNOOC also made an oil discovery LF 7-10-1d.  In 2018, SK Innovation made LF 12-3-1 discovery. The well was drilled to a TD of 2,014 m and encountered 34.8 m net oil pay. Test rates from the well was up to 3,750 bo/d from the Lower Miocene Zhujiang Formation.  In 2017 CNOOC made discovery in LF 14-8-1 and tested oil from the Oligocene Enping Formation.   In 2014 CNOOC made discovery of LF 8-1-1 and LF 14-4-1. LF 14-4-1 penetrated about 150 m of oil pay and tested 1,320 b/d of oil from the Lower Tertiary Zhuhai Formation.   In 2019, CNOOC is preparing to launch a new overall development plan for Lufeng oil fields cluster in the South China Sea oil fields cluster.  The Lufeng oil fields cluster, including Lufeng 14-4/14-8/8-1, Lufeng 15-1 and Lufeng 22-1, lies in the east or southeast part of the existing Lufeng oil fields group Lufeng 7-2 and Lufeng 13-1 fields. The Lufeng 22-1 field SPS will be connected to the drilling/production platform in the Lufeng 15-1 field via a 19 km of pipeline. A drilling/production platform will be built in the Lufeng 14-4 field and linked with the platform in the Lufeng 15-1 field via a 23.8 km pipeline.  Background Information  There are several fields on production in the Lufeng Sag:   LF 7-2 field is operated by Newfield and it was on stream in 2014. The field is producing from the Zhujiang reservoir at a rate of 23,500 b/d of oil in 2016.   LF 13-2 field, operated by CNOOC, also has reservoir in the Zhujiang Formation and on stream in 2006. It is produced at a rate of 6,400 b/d of oil in 2016.   LF 13-1 field has primary reservoir in the Zhujiang Formation and secondary one in the Oligocene Enping Formation. The field has been producing since 1993 and produced 16,000 b/d of oil in 2016.   LF 22-1 field - The field was officially shut down in June 2009 after nearly 12 years production as the field depletion.
China (Zhu-1 Depression (Pearl River Mouth B.)) Lufeng 13-1