Page 108: of Offshore Engineer Magazine (May/Jun 2015)

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to store 500,000 bbl while on location. The vessel will use a hybrid

DP2 system for station- keeping and operate in 80-700m water depths.

The contract for this

Gulf of Mexico

Above: Well Testing Toisa Pisces

EWT vessel is sched-

Vessel is owned and operated by Sealion Shipping Ltd. uled for signing by the end of 1Q 2015.

Right: Well Bourbon Opale

A subsea well will be

Testing Vessel is owned by drilled and completed

Bourbon Ships AS and operated by Sealion Shipping Ltd.

at each location, which

Photos from Pemex. will be tested prior to

The produced water would be removed from blended on the FPSO. Associated gas will the arrival of the EWT vessel. A drilling the oil, cleaned to meet discharge require- be used for fuel on the FPSO with some rig will complete the well, including a ments and dumped overboard.

fuel gas going back to the fxed platforms. downhole pump, and install a subsea

The Ayatsil-Tekel feld development The double hull vessel will be moored in tree. Subsea installation vessels will then will produce heavy crude oil from several 120m water depth using a disconnectable install a production riser, control umbili- felds discovered between 120-145km turret to avoid hurricanes. It will be able cal, and power cable for the downhole northeast of Ciudad del Carmen, a to store at least 1.5 MMbbl of crude. The pump between the subsea tree and a buoy 1100sq km region in the southern Gulf contract for the Ayatsil FPSO is scheduled that will connect to the EWT vessel when of Mexico. The FPSO being designed for to be signed by the end of 2Q 2015.

it arrives. While the vessel is testing this

In addition to the FPSO, the feld this development will handle crude from initial well, a drilling rig will drill and will require a EWT vessel capable of 16-21° API gravity, be able to process and complete a second well, and install a sep- processing and separating up to 15,000 treat 50,000 b/d of water and compress arate subsea tree. A second set of produc- b/d of crude with densities of 6-14° and dehydrate 25 MMcf/d of gas. It will tion riser, control umbilical, and power

API gravity. The processing system will be able to handle the sour crude with H S cable will be installed and connected to a 2 up to 24% mol and CO up to 18% mol. be able to handle H S up to 30% mol second buoy. 2 2

Crude from adjacent platforms with be and CO up to 20% mol, and be able

When the frst well test is complete, 2

ENGINEERING PRODUCTS

FROM

TOPSIDE TO SEAFLOOR

May 2015 | OE oedigital.com 110 108_OE0515_Geo2_Endeavor.indd 110 4/20/15 9:59 PM