Exploratory study on load and resistance factor design of pressure vessel for subsea blowout preventers

Cai, Baoping; Liu, Yonghong; Liu, Zengkai; Tian, Xinliang; Ren, Congkun; Abulimiti, Aibaibu

doi:10.1016/j.engfailanal.2012.08.020

Cited by 9 publications

(2 citation statements)

References 16 publications

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“…Rune designed an expansion packer and used it in the field of Glen Oilfield [7]. Alyami et al used water swelling elastomers WSR to study the sealing effect of the water expansion packer, and proposed an LRFDbased external pressure vessel design method [8,9]. As the main sealing element of the annular packer, the sealing performance of the rubber cylinder directly determines the setting effect of the downhole packer, especially in high-temperature and high-pressure environments [10].…”

Section: Introductionmentioning

confidence: 99%

Structure Design and Sealing Performance of Downhole Emergency Packer

Zhou,

Du,

Yin

et al. 2023

Advances in Transdisciplinary Engineering

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In the drilling process of offshore exploration wells and high-risk wells, the possibility of high-pressure overflow and kick increases greatly when encountering unknown or inaccurate formation conditions. If it is not handled properly, it may cause catastrophic accidents. Overflow and kick are the early warnings of blowout accidents, and the wellhead blowout preventer can be shut off first to cope with such emergency conditions. However, once the bottom hole high pressure spreads to the wellhead, it may bring safety risks to the wellhead emergency disposal. In this work, a new type of downhole packer while drilling was designed to quickly seal the annulus when high-pressure fluid appears underground. ABAQUS software is also used to simulate the sealing performance of the rubber cylinder, and analyze the stress changes of the rubber cylinder during the setting process. When the working stress is 10MPa, the maximum Mises stress of the rubber cylinder is 14.3MPa, and the contact stress of the rubber cylinder presents a “shoulder protrusion” distribution. By comparing the stress changes in the rubber cylinder with or without a metal skeleton, it was found that the overall contact stress with a metal skeleton will increase, which has a good impact on the sealing of the rubber cylinder.

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Section: Introductionmentioning

confidence: 99%

Structure Design and Sealing Performance of Downhole Emergency Packer

Zhou,

Du,

Yin

et al. 2023

Advances in Transdisciplinary Engineering

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“…Shaughnessy et al [7] analyzed the problems of ultra-deepwater drilling, and pointed out that the test of the subsea emergency disconnect system should be considered to ensure the functionality of equipment under the water. Cai et al [8] studied the load and resistance factor design of pressure vessel for subsea blowout preventers. But these previous works have left issues unresolved: (1) no enough experimental work was embedded in the calculation and analysis since the test data is the foundation towards the design and application of the subsea equipment; (2) the external hydrostatic pressure test and the functionality verification test were not conducted simultaneously [9].…”

Section: Introductionmentioning

confidence: 99%

Synchronous Test Platform for Functionality Verification and Structural Capacity Evaluation of Subsea Equipment

Wang

Zhu

2013

Int. J. Onl. Eng.

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Abstract-In order to verify the functionality and evaluate the structural capacity for subsea equipment simultaneously, a synchronous test platform was established, which consists of the test setup part and the data measurements part. Based on this platform, a test was conducted on a subsea wellhead connector to illustrate the test process and principle. A numerical calculation using a developed threedimensional finite element model was performed to compare with the test data. The results of numerical calculation and test have great good agreements. For further application, this synchronous test platform could be used for performance study of the subsea equipment under cyclic load and variable load. This paper is also bringing promotional values for other subsea device with similar and even more complex working condition.

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