한국해양대학교

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해양 가스 생산시스템의 유동안정성 확보 연구

Title
해양 가스 생산시스템의 유동안정성 확보 연구
Alternative Title
A Study on Flow Assurance for Offshore Natural Gas Production System
Author(s)
백승영
Publication Year
2016
Publisher
한국해양대학교 대학원 해양에너지자원공학과
URI
http://kmou.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002235564
http://repository.kmou.ac.kr/handle/2014.oak/10707
Abstract
Flow assurance management in natural gas production system of matured offshore field is essential since gas lifting is not enough for flow assurance due to decreased reservoir pressure. It may cause gas well shut down if gas flow rate is less than critical gas velocity in subsea system such as production tubing, flowline, riser and topside in offshore platform. This phenomenon also may cause liquid loading & hydrate plug at low temperature & high pressure in subsea production system. This study suggests three methods of offshore natural gas production system flow model and hydrate plug models in order to investigate liquid loading and hydrate depressurization analysis. The liquid loading simulation results figured out liquid loading indicate at the riser 4.4 mmscf/d of gas rate and 95 m of liquid column from riser start point. Hydrate plug result figured out 1,000 m position and 530 m length from x-mas tree. Depressurization result figured out 280 hours of two-side depressurization is best method to remove hydrate plug safely.
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해양에너지자원공학과 > Thesis
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000002235564.pdf Download

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