Empyrean signs COSL for Jade well offshore China

Sept. 6, 2021
Empyrean Energy has contracted China Oilfield Services Ltd. to drill an exploration well on the Jade prospect in block 29/11.

Offshore staff

SUBIACO, Australia – Empyrean Energy has contracted China Oilfield Services Ltd. (COSL) to drill an exploration well on the Jade prospect in block 29/11, offshore China.

The location is in the Pearl River Mouth basin, 200 km (124 mi) southeast of Hong Kong.

In the event of a commercial discovery, Empyrean’s partner CNOOC has the right to take a controlling 51% interest in the development and production phase.

COSL has confirmed availability of a rig for the target spud date of Dec. 15-30.

In April, Empyrean appointed AGR to perform the well design and engineering, and based on AGR’s recommendation, opted for a four-string casing design for the drilling program.

Estimated cost for the well is $12.3 million on a dry-hole basis, while under a success scenario, testing of any oil column could cost $7.4 million.

Progress continues on other drill preparations including the well site survey.

Jade, as audited by Gaffney Cline Associates, has potential resources in the range 225-395 MMbbl, with four recent nearby discoveries by CNOOC immediately to the west, all with gas clouds showing in the overburden on seismic.

Other prospects identified on block 29/11 are Topaz and Pearl prospects, with combined audited potential of 884-1,588 MMbbl.

A post-stack seismic inversion study showed Jade and Topaz both have potential for good-quality carbonate buildup reservoir, porosity and permeability, with the oil likely to be in the 38-41° API range, similar to nearby discoveries.

09/06/2021