Hess to discuss subsea tie-back offshore Equatorial Guinea

The next MTS Houston Section luncheon will be held on Dec. 2, 2010, and will feature a presentation by Tor Gavem of Hess Corp. on the Akom North G-19 Single Subsea Tie-back Well offshore Equatorial Guinea.

Offshore staff

HOUSTON– The next MTS Houston Section luncheon will be held on Dec. 2, 2010, and will feature a presentation by Tor Gavem of Hess Corp. on the Akom North G-19 Single Subsea Tie-back Well offshore Equatorial Guinea.


The single subsea tie-back well, called the “Akom North G-19 well,” is located approximately 2.79-mi North from Okume “E” TLP (also referred as Oveng TLP). The water depths at the G-19 well and Okume “E” TLP are approximately 1,175 ft (358 m) and 890 ft (271 m), respectively.

The subsea architecture consists of a single 4-in. ID insulated flexible that will initiate at Okume “E” TLP and terminate at subsea (i.e. at Akom North G-19 well) utilizing a dual-hub PLET piping and associated rigid jumper. One hub is designated to connect a rigid flowline jumper to the wellhead tree and other hub is for future developments.

The single flexible flowline will be used to transport the production oil. The subsea controls will be provided using an electro-hydraulic umbilical. The maximum total production oil rate from this field is estimated to be 6,000 Bfpd with water cuts varying from 0 to 50% and gas lift rates varying from 0 to 3.5 MMscf/d.

The discussion will focus on the design elements, challenges in working with existing facilities, and the execution philosophy and procurement strategy.

11/19/10

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