Designed for drilling and production applications up to 15,000 psi working pressure, the UWD-15 Standard system features a world proven weight set, metal-to-metal seal design. The Standard System is designed for applications in water depths ranging from a few hundred feet to 6,000 feet. The wellhead systems can also be incorporated with annulus monitoring features. This modular system is designed with maximum flexibility and reliability in mind.
- 15,000 psi H2S service rating meets global requirements
- Weight-set straight-in and straight-out operation for optimum reliability
- All metal sealing for enhanced seal integrity in critical applications
- Proven compression set, metalcapped elastomer seal option
- Passive mandrel load shoulders provide high pressure, high load capacity
- 7.1 million pounds total load capacity supports up to four casing strings (three standard strings)
- Two-point centralization on all casing hangers eliminates hanger misalignment with maximum flow-by
- Casing and seal assemblies run in a single-trip, saving rig time and costs
- Seal assemblies lock to casing hangers to eliminate space-out
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BOP stack can be tested to full rated working pressure with bore protector in place to reduce trips, protect wellhead housing
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Wear bushings can be run and the BOP test performed in a single trip
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Optional lock down of seal assemblies provides positive indication of proper stack-up for completion or tie-back
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Standard profiles enable internal and external completion or tieback options without modification
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Strip-over guidebases, for guideline and guidelineless operations, can be remotely retrieved and reinstalled
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Multi-task running tools reduce number of trips for setting and testing
A weight-set 16" submudline hanger (mandrel style) assembly is available for all UWD-15 systems. This optional casing hanger/seal configuration suspends and seals 16" casing at any predetermined point in the 20" casing string. The submudline hanger and receptacle have a combined casing and pressure end load of 1.6 million pounds. Substantial flow-by area is provided. A split lock ring secures the submudline seal assembly and hanger to its receptacle and provides positive surface indication of proper setting. Like the rest of the system, the seal assembly is retrieved by straight vertical pull. No rotation is required. The 16" hanger and seal assembly are run and tested in a single trip without having to pull the bore protector in the 18-3/4" housing.
More Features and Benefits - More system specific features