Page 61: of Maritime Reporter Magazine (April 1998)

INTERNATIONAL OFFSHORE TECHNOLOGY mgmm HHHH mmmm jects, Hydro's Fram and Grane fields, Amoco's Valhall water injec- tion scheme and BP's Ula Triassic.

Statoil To Inject Life Into

Norwegian Northern Sea

Statoil plans to use new tech- nology to improve oil recovery on the Norwegian continental shelf (NCS). As reported in Maritime

Week (sister publication to

Maritime Reporter & Engineering

News), the company believes the campaign could lift NCS recover- able oil reserves by around five bil- lion barrels by 2005. "We have set ambitious goals but we believe they are achiev- able," said Sigve Haaland, sector manager of major petroleum tech- nology projects. "In the 1980s peo- ple said it was impossible to drill wells at more than 60 degrees (from the vertical), now we're at 90 degrees (horizontal)."

The Norwegian Petroleum

Directorate has set a goal for recovery rates of 50 percent for oil and 75 percent for gas, far above typical world rates for oil of between 20 and 40 percent. Mr.

Haaland said "smart wells" and increased water and gas injection would account for a large part of the gains.

Smart wells include horizontal drilling, which can now extend up to almost 10 km, branched wells — when the well splits into branches producing from different parts of a reservoir, and side-tracking.

The company has reportedly already used branched wells — a technique designed for draining the last drops from mature wells — at the Statfjord and Yme fields and plans to drill one at Gullfaks, three at Statfjord, two at Sleipner

West and one at Heidrun in 1998.

Another technique Statoil will apply at Gullfaks, Statfjord and

Yme is re-entry, or sidetracking, where coil-tubing is fed into an already-spudded well, which is then drilled out of the well wall and into new areas of the reser- voir. One advantage to side- tracking is that it avoids the cost of drilling new wells and revital- izes "dead" wells. It also avoids problems of slot capacity on the platform. Statoil will also attempt to improve reservoir management via remotely-operated wells, which requires installing a "sleeve" in the well, which can be controlled from the platform. The "sleeve" can be opened and closed at different junctions to maximize flow and drainage from the reservoir.

San Diego Welcomes 1998

SNAME Annual Meeting

The San Diego Concourse will host the Society of Naval Achitects and Marine Engineers (SNAME) 1998 Annual Meeting and

International Marine Exposition from November 11-14, 1998. The event includes participation in the

Year of the Ocean, as part of the

United Nation's year-long effort to raise global awareness of the ocean's role in the world today, as well as tomorrow. A full confer- ence program and exposition will focus on all aspects of research, design, production, maintenance and operation of ships, sub- mersibles, yachts, boats, offshore and ocean bottom structures, hydrofoils and surface effect ships.

Circle 45 on Reader Service Card

R.W. FERNSTRUM & COMPANY 50 YEARS EXPERIENCE IN ENGINEERED KEEL COOLING

FERNSTRUM

You want the best of everything on your boat, as long as it's affordable...right?

Then why don't you give us a call? For the cost of a phone call, well figure out which of over 8000 different Gridcoolers is right for cooling your engine in your application.

How can you go wrong? We've been engineering cooling systems for all types of marine engines for the last 50 years. Our product is so durable, efficient and easy to install that the U.S. Navy wrote their keel cooling specifications around our Gridcoolers.

Why take chances when it comes to your engines' dependability?

Do it right the first time... use Fernstrum Gridcoolers. es und only in the

GRIDCOOLER: ; Completely assembled and factory tested i Silver brazed and welded joints

I Heavy gauge 90/10 copper-nickel or 5000 series aluminum rectangular tube ! Custom designed i The most compact form of keel cooling 1716 11th Avenue, Menominee, Ml 49858

Ph: 906-863-5553 Fax: 306-863-5634

April, 1998 Circle 371 on Reader Service Card 88E