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1.3 Wellhead design

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Proceedings Papers

Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 3–5, 2020
Paper Number: SPE-199633-MS
... increased. Additionally, since the Macondo incident 10 years ago, capping stacks have also been included in the design process. All of these developments have resulted in higher fatigue loads and an evolved conductor design, wellhead design and in some cases, inclusion of the 28″ pipe (secondary conductor...
Journal Articles
Journal of Petroleum Technology 66 (04): 84–87.
Paper Number: SPE-0414-0084-JPT
Published: 01 April 2014
... and wave-induced-fatigue monitoring systems, please see the complete paper. Besides the wellhead and connector, areas of concern include the welds between the wellhead and the adjacent pipe and the seam weld in the conductor pipe. A typical SCF in one of these welds is approximately 1.3, generated...
Journal Articles
SPE Drilling & Completion 33 (03): 259–274.
Paper Number: SPE-191138-PA
Published: 17 May 2018
...L. C. Sevillano; J.. De Andrade; S.. Sangesland Summary Pushing the frontier of oil exploration and production into more-challenging environments and more-frequent interventions and workover operations in subsea wells has led to an increased focus on the structural integrity of a subsea wellhead...
Journal Articles
Journal: SPE Journal
SPE Journal 22 (01): 235–243.
Paper Number: SPE-180358-PA
Published: 10 August 2016
... dimension are investigated with sensitivity studies through numerical simulations. Analysis results suggest that radon wellhead concentration is strongly related with production rate. Thus, careful production design and protection are necessary to reduce radon hazard regarding the public and environmental...
Proceedings Papers

Paper presented at the SPE Western Regional Meeting, May 23–26, 2016
Paper Number: SPE-180358-MS
.... Analysis results suggest radon wellhead concentration is strongly related with production rate. Thus, careful production design and protection are necessary to reduce radon hazard regarding to the public and environmental impact. shale gas radium concentration pore radon release Modeling...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-557
... Analysis. DNV GL Recommended Practice DNVGL-RP-C203, Edition April 2016, Fatigue Design of Offshore Steel Structures. DNV GL report no. 2011-0063 Rev 01, January 2011, Wellhead Fatigue Analysis Method. Jaiswal, V., Feng, L., Saraswat, R., Healy, B., Hørte, T., and Sharma, P., (2016), Fatigue Analysis of...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 9–12, 2020
Paper Number: SPE-203207-MS
... and heterogeneous. For some wells, the missing information even included well construction files, cement logs, some overburden lithology parameters and, for one of the wells, the characteristics of wellhead and annulus fluid. The execution of an uncertainty analysis based on the good practices...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2011
Paper Number: OTC-21400-MS
... Abstract The specification and selection of subsea wellhead systems is typically based on the use of generic system designs which have a defined extreme load capacity. However the fatigue performance of the wellhead system is also a critical aspect of the equipment which may not always be...
Proceedings Papers

Paper presented at the SPE Offshore Europe Conference and Exhibition, September 8–11, 2015
Paper Number: SPE-175441-MS
..., older wellhead equipment was typically not designed to enhance fatigue resistance and thus may have accrued fatigue damage at faster rates than seen in more modern designs. Harsh subsea environments, such as in the Northern North Sea can add further severity to fatigue damage accumulation. To...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2013
Paper Number: OTC-23981-MS
... failure of the drilling riser and wellhead equipment. However, using this conservative approach, the allowable fatigue design limits are often predicted to be exceeded before the target operation durations are achieved. This can lead to costly last-minute design changes, the necessity for which often...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 4–7, 1992
Paper Number: SPE-24607-MS
... Block 189 project. This will be followed by a detailed explanation of the problems encountered and the solutions used to successfully complete all three of the subsea wellhead tiebacks. INTERFACE SUMMARY SPECIFICATIONS & FEATURES Template Design: Pertinent design features for the template used at Garden...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 7–9, 1984
Paper Number: OTC-4789-MS
... optimise subsea equipment reliability and maintainability have culminated in the evolution of a new generation of modularised template and template component designs; these require new intervention tools and support vehicles and the market has been quick to respond with suitahle system designs. The impact...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25403-MS
..., Austrailia , November , 2012 . Lim , T-K. , Koska , R. , Tellier , E. , " Overcoming Installation Challenges to Wellhead and Conductor Fatigue ," Proc OMAE 2013 , Nantes, France, OMAE2013–11112 . American Petroleum Institute – " Design of Risers for Floating Production Systems (FPSs...
Proceedings Papers

Paper presented at the SPE Health, Safety, Security, Environment, & Social Responsibility Conference - North America, April 18–20, 2017
Paper Number: SPE-184465-MS
... natural gas industry per EPA's proposed rules that would require that the industry reduce methane emissions. Specifically, the EPA intends on reducing fugitive methane and VOC emissions from new and modified oil and natural gas production well sites. Wellhead Emissions Management Systems, LLC of Houston...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 18–20, 2010
Paper Number: SPE-132855-MS
... flowing tubing head pressure (FTHP) of a well which keeps the well flowing above the critical rate for a longer period of time. Vico has installed compressors with low suction pressure near to the wellheads to lower the FTHP in selected late life gas wells. A compressor design with a relatively small...
Proceedings Papers

Paper presented at the International Oil and Gas Conference and Exhibition in China, June 8–10, 2010
Paper Number: SPE-130823-MS
... overrun the design limit will cause the wellhead collapsed. The subsea wellhead system for deep water drilling is shown in Figure 1 . Fig. 1 Typical subsea wellhead system for deepwater drilling Abstract Subsea wellhead bearings complex stress because it joint with the marine riser and...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28855-MS
... expenditure projects with multiple interfaces often spanning several entities, including the Operator, Engineering Procurement and Integration Contractor (EPIC), Rig Builder, Production and Drilling Top-Tensioned Riser (TTR) supplier, Subsea Wellhead supplier, and Surface Wellhead/Tree supplier. Design and...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing Conference and Exhibition, April 12–13, 2005
Paper Number: SPE-94333-MS
... are being used which are designed to stop the injector moving relative to the wellhead. These frames transmit bending loads to the ground or platform rather than onto the wellhead. This paper will describe how the support systems work and show where the systems do not protect the wellhead...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2003
Paper Number: OTC-15340-MS
..., and the other concerning the Wellhead Platform with the Inlet Separator, Test Separator, and HP Flare K.O. Drum. Depending on the field development phase and operating philosophy, the number of working Production Wellhead varies up to 30. The HP Flare K.O. Drum is not designed to receive the total...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 26–29, 2020
Paper Number: SPE-201722-MS
... Abstract After a blowout incident, the wellhead conditions (hydrocarbon flow rate and pressure) are difficult to predict. The worst-case discharge during an offshore blowout has always been a concern for the oil and gas industry. When a blowout occurs, the two-phase flow establishes various...

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