In:
SPE Journal, Society of Petroleum Engineers (SPE), Vol. 26, No. 05 ( 2021-10-13), p. 2948-2962
Abstract:
The subsurface safety valve (SSV) is an essential device of a subsea production system. The hydraulic SSV is widely used, but it has some drawbacks when used in deep water: It needs a long pipeline from platform to wellhead, and brings additional pressure loss. The system needs higher pressure and manufacturing costs, but the response is slower. To solve the problem, a new all-electric surface-controlled SSV (E-SCSSV) system consisting of an E-SCSSV body and a control system is developed. The innovative structural designs include electric-drive mechanisms and a magnetic coupler that can transfer linear motion. The mechanical property of E-SCSSV body is analyzed to determine the ability to resist well pressure. The coupling rule of the magnetic coupler is studied through experiment and finite-element analysis. The dynamics of the failure-safety mechanism is investigated to obtain the optimal performance and combination of structural parameters. Using sensors on the E-SCSSV body, the operation status of the E-SCSSV can be monitored. An E-SCSSV system prototype has been developed to validate the function of the E-SCSSV. Reliability requirements are discussed. Compared with existing SSVs, the biggest advantage of the E-SCSSV is its quick response.
Type of Medium:
Online Resource
ISSN:
1086-055X
,
1930-0220
Language:
English
Publisher:
Society of Petroleum Engineers (SPE)
Publication Date:
2021
detail.hit.zdb_id:
2375537-4
SSG:
19,1
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