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NEW GENERATION OF HIGH PERFORMANCE SURFACE WELLHEAD AND CHRISTMAS TREE SYSTEM FOR EXTREME SERVICE CONDITIONS

Ziel

Demonstrate the technical and economic viability of an innovative wellhead and christmas tree system design required to meet the following severe service conditions :
- 15,000 psi wellhead shut in pressure.
- 400 deg. F wellhead produced fluid temperature.
- Extreme corrosive produced fluids.
- Maximize completion size.
- 25 year maintainable service life.
- Fire resistant to API 6FA & 6FB.
- Minimize risk of blow out.L%
Tests completed :
- 10 3/4" Adjustable Mandrel Hanger
- 14" Adjustable Mandrel Hanger
- 14" Rough Casing Metal Seal
- 13 5/8"-15K Speedloc Clamp
- 18 3/4"-10K Speedloc Clamp
- 13 5/8" Tubing Hanger Seal
- 10 3/4" Production Casing Hanger Pack-Off.
The project will demonstrate the suitability of existing wellhead features, including any iterative changes for enhanced performance, in meeting the requirements of a high temperature (400 deg. F)/high pressure (15,000 psi) wellhead application.
The primary features identified for such a wellhead are :
The Tubing Hanger (13 5/8" x 4 1/16"-15K)
Wellhead Connectors (13 5/8"-15K, 18 3/4"-15K),
Production Casing Hanger Pack-Off (13 5/8" x 10 3/4"-15K)
Valves (4 1/16"-15K).
Phase 1 - Component Tests
This phase of this project is for the design and manufacture of the various component prototypes and their testing within a test fixture. This phase has been expanded to include performance verification testing at the specified temperature and pressure and also to produce generic type design certifications.
NOTE : The original project consisted of three phases, the first was a "component tests" phase, the second was a "final tests" phase and thirdly a "final design" phase. These three distinct phases have largely been merged into a single phase. The other two phases, that of construction and testing of a complete wellhead and tree system and then any revisions to that system resulting from the test, has now been dropped. This is due to the large expense of building a system with little realistic chance of being able to sell such a system onto a customer. Also, the benefits of system testing over component testing is marginal and thus not necessary. Based on results achieved, we have demonstrated the system/component availability to the end users and are ready to meet their needs.

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Koordinator

FMC CORPORATION (UK) LTD
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Adresse
PITREAVIE BUSINESS PARK DUNFERMLINE
KY11 5PU FIFE
Vereinigtes Königreich

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