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All Listings: Drilling Ships: 4 Adverts
Displaying: 1-4 |
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1 Pages:
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| Commercial: OFFSHORE DRILL RIG FOR SALE |
| Featured Advert!
Click here for more photos and information |
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THERIAULT INTERNATIONAL MARINE IS PLEASED TO PRESENT THIS SEMI SUBMERSIBLE OFFSHORE DRILLING RIG, AVAILABLE FOR PROMPT INSPECTION/DELIVERY - CURRENTLY CONFIGURED AS A 40,000 BBL OFFSHORE PRODUCTION UNIT. CURRENTLY WARM STACKED OFFSHORE WEST AFRICA. UNIT HAS NO DRILLING RESTRICTIONS - UNIT HAS HUGE FOOTPRINT THAT WOULD MAKE IT SUITABLE FOR CONVERSION INTO AN OFFSHORE ACCOMMODATION UNIT- OR RE-ACTIVATED BACK TO DRILLING, OR FURTHER USE AS A FLOATING PRODUCTION UNIT. UNIT HAS ONE UNIQUE FEATURE AS A DRILLING RIG IN THAT SHE HAS THE DESIGN CAPABILITY TO SIT ON THE SEA BED. UNIT HAS VERY LARGE LOAD/DEADWEIGHT CAPACITY AND THEREFORE USEFUL FOR INSTALLATION OF LARGE PLANT/FACILITY.
PLEASE CONTACT FOR ADDITIONAL DETAILS. |
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Status: Available
Contact: Theriault International Marine [Send Enquiry]
Telephone: +1 902 467 0239
Location: Brazil
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More information and photos |
Theriault International Marine Gallery
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| Ad ID:
83279 (Trade Advertiser) |
Posted: 2009-10-06 05:13:43 UTC |
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| Commercial: We Have Offshore Experts Ready To Assist |
| Featured Advert!
Click here for more photos and information |
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Theriault International Marine has direct access to offshore marine equipment and services. Our team specialises in new and used vessels supporting the international offshore oil and construction industry from crew boats to semi submersible offshore drilling rigs. We can provide new and used offshore equipment, including supporting services with established, recognised offshore ship and offshore rig management capability with a proven track record in the offshore industry, Whatever your offshore marine requirement is, we have direct access to a huge pool of experts in the marine industry with many years of established hands on experience and a huge inventory of offshore support vessels. Please contact us with your specific offshore requirements. The watchwords are "solutions, not problems", and if you are looking for lateral thinking, alternative options, oddball equipment, competitive options, in short solutions, we may well be able to help you with some practical innovative concepts.
Direct E-mail Contact: offshore@theriaultinternational.com |
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Status: Available
Contact: Theriault International Marine [Send Enquiry]
Telephone: +1 902 467 0239
Location: Canada
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More information and photos |
Theriault International Marine Gallery
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| Ad ID:
104686 (Trade Advertiser) |
Posted: 2009-10-06 04:28:42 UTC |
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| Commercial: Offshore Drilling ? |
| Featured Advert!
Click here for more photos and information |
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The question, in short is. What is the future in offshore deepwater drilling ?
The only answer to this is subsea drilling, and in a comparatively practical drilling concept being developed in a joint industry project; Seabed Drill Rig - SDR. The difference here is a prototype could emerge by the end of 2009. Drilling offshore wells from the sea bottom actually is an older concept than drilling from the water's surface. Patents for such rigs were filed as far back as the 1840s. But then, concepts are just that ideas that are only half-baked until somebody turns up the heat.
In practice, offshore drilling began at the surface and has remained there ever since. Locating a drilling rig on the ocean floor--though the more practical of the two notions for lots of reasons, the main one being steadily increasing water depths for offshore operations--has been considered pretty much only in the academic sense. So far, bottom-supported oilfield equipment has been employed mainly for post-drilling, production-related operations only.
But times--and drilling water depths--have changed. Today, advances in marine drilling technology have outdistanced even the deepwater prospects actually available to offshore producers. Though one or two ultradeepwater wells have been drilled so far in up to 9,000 ft (2,745 m) of water or so, floating rigs for exploratory drilling--semisubmersibles and drillships--already are being designed and built to work in water depths to 10,000 ft (3,000 m), with even newer designs aimed at the 15,000-ft (4,675-m) and even the 20,000-ft (6,100-m) mark.
Problem is, as water depth capability increases, so does the size and cost of the rig itself as well as that of all the equipment needed to connect it to the ocean floor. The overall cost for rigs and terminal equipment necessary for drilling in those water depths has slipped past the $750 million mark and there seems to be no end in sight. But storms and heavy seas can still shut it all down for days, even weeks, at a time.
A group of six multinational oil companies and several offshore equipment manufacturers formed a joint industry project (JIP) aimed specifically at coming up with an economical way to drill offshore wells from the seabed. Such a rig would be relatively unaffected by topside weather, and there would be no need for rigid riser connections between the rig and the surface, either.
To date, the group has established that not only is such a rig feasible, but it's possible to have a prototype in operation by late 2009 or early 2010. Vitally important among the benefits afforded by such a rig would be significant drilling cost reductions and the ability to plumb the earth for oil and gas in water depths that are considered impossible, even with today's deepwater drilling equipment.
O.M.E.M. Ltd., a veteran marine engineering and project management consulting company, has been running the subsea rig project under the JIP. The company have featured a model of the JIP's Seabed Drilling Rig (SDR) concept. Also, O.M.E.M. Ltd. officials delivered a technical paper dealing with the recently positive feasibility study. Understandably, both drew lots of interest, particularly since the study claims that use of such a rig could gain well construction cost reductions of up to 30 percent at water depths of 3,500 ft (1,100 m) to 7,500 ft (2,300 m).
The preliminary system design includes the SDR, which is a modular, remotely controlled rig that uses standard automated drilling procedures and jointed casing and drilling tubulars, with control of both applied and downhole pressures and drilling fluid circulation at the seabed, rather than at the surface, as is the case with floating rigs connected to the well by rigid riser systems. Pipe handling is automatic, as is the top drive system for rotating the drillstring. The most obvious advantage of a rig stationed on the seabed would be its relative insensitivity to weather and, of course, its water depth.
The SDR is connected to a Rig Support Vessel (RSV), a ship-shape vessel stationed at the surface by flexible risers for power and remote control of the seabed rig. A shipboard hoist handles lowering and raising of the rig, which is only a third of the size used aboard conventional floaters. This hoist also conveys pipe, drilling fluid, and power modules to and from the surface to keep the drilling operation active. The hoist operates through a conventional moon pool in the ship's hull.
Since there is no rigid marine riser and drillstring between the vessel and the seabed, there would be no need for large tensioners and heavy heave compensation gear aboard the RSV. Therefore, the ship could be significantly smaller in size than, say, a deepwater drillship.
According to O.M.E.M. Ltd. with no rigid risers in place, the RSV would not require heavy chain/wire anchoring systems to keep it above the seabed rig. Instead, it would use dynamic positioning--a thruster-driven station-keeping technology already well developed--to stay in place above the rig. What's more, the flexible risers would allow the RSV much wider latitude for excursion due to wind and wave action. This would allow it to operate in much more critical sea conditions than conventional floating rigs.
The industry has an increasing need to explore for oil and gas in deeper water, yet drilling costs continue to escalate with water depth, so step changes in drilling methods and equipment are needed now. The SDR/RSV system provides a practical and economic solution to reducing well construction costs, particularly for water depths beyond the reach of floating rigs attached to the bottom by expensive rigid connections. Extending this technology would allow producers to drill wells economically in 10,000 ft of water and beyond--in water depths that make up half of the world's surface but which currently are out of technical or economic reach.
There is the answer to that question, it really needs someone to get into it, to build a seabed rig would be far cheaper than even up-grading a second hand semi, and a seabed rig is not limited to ultra deep water, it could also drill in very shallow water, a key is that the operating costs of an SDR would be a fraction of the cost of surface drilling. For anybody looking for innovative solutions, the technology is available now, if you are interested further we can put you in direct contact with it to make you a world leader in the offshore innovative technology.
Kind Regards,
Theriault International Marine |
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Status: Available
Contact: Theriault International Marine [Send Enquiry]
Telephone: +1 902 467 0239
Location: Saudi Arabia
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More information and photos |
Theriault International Marine Gallery
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| Ad ID:
103967 (Trade Advertiser) |
Posted: 2009-09-25 05:14:01 UTC |
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1 Pages:
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