심해 석유 생산 시스템 시뮬레이션 구현에 관한 연구

박주용(Ju-yong Park),조효제,임영진,오형석(Hyoung-seok Oh),문세영(Se-young Moon) 한국해양환경·에너지학회 2012 한국해양환경공학회 학술대회논문집 Vol.2012 No.5

The purpose of this study is implementation of the simulation for subsea production system. Subsea production system is installed under the environment of high pressure and low temperature. Most of processes of production are proceeded in the subsea equipments. Therefore, the understanding and study of subsea production system is very difficult because people cannot observe the process directly. The simulation system can be a solution for this difficulty, hi this research the information models and 3-D graphic model for the subsea equipments were built using the object-oriented technology and 3-D CAD. The entire system was implemented with help of simulation software, 3-DVIA Virtools. The simulation system of subsea production system was tested with several scenarios of production process. The test results showed that the simulation system is very useful for the understanding of subsea production system and can be a good education tool.

Subsea 생산 시스템 시뮬레이션에 관한 연구

박주용(Ju Yong Park),조효제(Hyo Jae Jo),이승재(Seung Jae Lee) 한국해양공학회 2013 韓國海洋工學會誌 Vol.27 No.3

The purpose of this study was the implementation of a simulation for a subsea production system. This subsea production system is installed under environments with high pressure and low temperature. Most of the processes for oil and gas production occur in the subsea equipment. Therefore, an understanding and study of subsea production systems is very difficult because people cannot directly observe the processes occurring in the subsea production system. A simulation system can be a useful solution for this difficult problem. In this research, information models and a 3?D graphic model of the subsea equipment were built using the object?oriented technology and 3?D CAD. The entire system was implemented with the help of simulation software, 3?DVIA Virtools. The simulation system for the subsea production system was tested using several production process scenarios. The results of the tests showed that the simulation system is very useful for understanding a subsea production system and could be a good educational tool.

Development of a Prototype Data Logger System to Operate under Extreme High Pressure

유남현,이상용,이형옥 한국지능시스템학회 2014 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.14 No.2

A subsea oil production system must be safely operated for 20–30 years after being installed. Because of the severe conditions of the subsea environment, such as extreme high pressure,low visibility, the possibility of unexpected impact by any object, and corrosion by seawater,subsea oil production systems should be monitored by subsea data logger systems and remotelyoperated vehicles to check for abnormal vibration and leakage to prevent a catastrophicaccident. Because of the severity of subsea environmental conditions and the dominance of afew companies in the market, many people have thought that it would be difficult to develop asubsea data logger system. The primary objectives of the study described in this paper were toanalyze existing subsea data logger systems to establish the requirements for a subsea datalogger system, implement a prototype subsea data logger system, and conduct a test of theprototype subsea data logger system.

Development of a Prototype Data Logger System to Operate under Extreme High Pressure

Nam-Hyun Yoo,Sang-Yong Rhee,Hyeong-Ok Lee 한국지능시스템학회 2014 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.14 No.2

A subsea oil production system must be safely operated for 20?30 years after being installed. Because of the severe conditions of the subsea environment, such as extreme high pressure, low visibility, the possibility of unexpected impact by any object, and corrosion by seawater, subsea oil production systems should be monitored by subsea data logger systems and remotely operated vehicles to check for abnormal vibration and leakage to prevent a catastrophic accident. Because of the severity of subsea environmental conditions and the dominance of a few companies in the market, many people have thought that it would be difficult to develop a subsea data logger system. The primary objectives of the study described in this paper were to analyze existing subsea data logger systems to establish the requirements for a subsea data logger system, implement a prototype subsea data logger system, and conduct a test of the prototype subsea data logger system.

Development of a Prototype Data Logger System to Operate under Extreme High Pressure

Yoo, Nam-Hyun,Rhee, Sang-Yong,Lee, Hyeong-Ok Korean Institute of Intelligent Systems 2014 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.14 No.2

A subsea oil production system must be safely operated for 20-30 years after being installed. Because of the severe conditions of the subsea environment, such as extreme high pressure, low visibility, the possibility of unexpected impact by any object, and corrosion by seawater, subsea oil production systems should be monitored by subsea data logger systems and remotely operated vehicles to check for abnormal vibration and leakage to prevent a catastrophic accident. Because of the severity of subsea environmental conditions and the dominance of a few companies in the market, many people have thought that it would be difficult to develop a subsea data logger system. The primary objectives of the study described in this paper were to analyze existing subsea data logger systems to establish the requirements for a subsea data logger system, implement a prototype subsea data logger system, and conduct a test of the prototype subsea data logger system.

Subsea X-mas Tree에서의 Blockage 처리 실패에 대한 위험도 저감 방안 분석

유원우(Won-Woo Yoo),박민선(Min-Sun Park),양영순(Young-Soon Yang) 한국해양공학회 2013 韓國海洋工學會誌 Vol.27 No.2

A subsea chemical injection system treats blockage problems in a subsea production system. It is important to treat problems quickly, because production delays cause fatal profit losses in a subsea production system. Therefore, the subsea industry requires a relatively higher reliability level for a production system compared to other industries. In this study, a subsea chemical injection system (linked to a control system) to inject chemicals into a subsea X?mas tree was analyzed. By using FSA (Formal Safety Assessment), the risk factors were defined and a quantitative risk analysis utilizing FTA (Fault Tree Analysis) and ETA (Event Tree Analysis) was performed. As a result, the effectiveness of a risk reduction option was evaluated.

Well과 X-mas tree에서의 Leakage 발생 경우에 관한 연구

유원우(Yoo Won-woo),박민선(Park Min-sun),양영순(Yang Young-soon) 대한조선학회 2011 대한조선학회 학술대회자료집 Vol.2011 No.11

원유와 천연 가스에 대한 수요는 여전히 높은 수준을 유지하고 있는 반면, 육상 자원의 개발은 정체가 되어 가고 있는 상황이 옴에 따라 해양 자원의 개발이 날이 갈수록 가속화되고 있다. 이와 함께 해상에서 자원을 개발할 수 있도록 하는 System인 Subsea system 또한 지속적으로 발전되고 있다. Subsea system의 다른 장비와 마찬가지로 Subsea X-mas tree 또한 빠른 기술 발전으로 과거의 단순한 유정 제어 역할에서 벗어나 그 역할의 범위를 넓혀가고 있다. 이러한 기능의 변화는 해당 장비의 구조의 변화와 동반되는 것이 일반적이다. 따라서 본 논문에서는 이와 같은 Subsea X-mas tree system의 변화에 대해서 조사하여 그 System을 이해하고, 이러한 기능의 변화에 발 맞추어 제작되었을 것이라고 생각되는 최근의 Subsea X-mas tree 및 Well의 구조를 선정하여 Subsea X-mass tree system의 주요 Failure 요인인 Leakage에 대한 연구를 통해 Leakage path를 분석하고 각 Components가 Leakage에 영향을 미치는 수준을 FTA(Fault Tree Analysis)를 수행하여 정략적으로 확인해보고자 한다.

해저 유정 제어 시스템에서의 누수 경로 FTA 분석

유원우(Won-Woo Yoo),박민선(Min-Sun Park),양영순(Young-Soon Yang),류원선(Won-Sun Ruy),장범선(Beom-Seon Jang) 한국해양공학회 2013 韓國海洋工學會誌 Vol.27 No.3

The growing need for energy (oil and gas) has led to offshore resource development. As a reflection of this trend, there have been many advances in the technologies used for the subsea production systems that make offshore resource development possible. As the technologies for subsea production systems continue to grow, a subsea X-mas tree, the core equipment in a subsea production system, is required to have more functions than before. Generally, these complex functions lead to a change in its configuration. Therefore, this paper investigates a change in a subsea X-mas tree system to enhance system understanding, and conducts a leakage path analysis of a subsea X-mas tree system. Utilizing the recent configuration of the subsea X-mas tree, an identification of the leakage path and a quantitative risk analysis for the leakage using an FTA (fault tree analysis) are conducted.

In-line 타입 해저 세퍼레이터 내부 기-액 유동 연구

김영주(Yong-Ju Kim),우남섭(Nam-Sub Woo),전홍필(Hong-Pil Jeon),한상목(Sang-Mok Han),우타관(Ta-Kwan Woo),정성윤(Sung-Yoon Jeong),신정란(Jeong-Ran Shin),전영태(Yeong-Tae Jeon) 대한기계학회 2015 대한기계학회 춘추학술대회 Vol.2015 No.11

The implementation of subsea separation and liquid boosting is becoming a common development scheme for the exploration of deep water fields. Subsea separation system should reliable. To ensure successful operation in a wide range of 3-phase flow regime, without need for developments. A subsea separator can avoid or simplifying costly surface platforms of floating vessels, as well as being an efficient tool to enhance hydrocarbon production. One solution of interest is the separation and re-injection of water at the seabed to avoid bringing the water up to the surface facility. In this study, multiphase flow characteristics inside in-line type subsea separation system are investigated for the design of subsea separation system.

수평시추 방식에 의한 해저터널 시공중의 막장 수압경감

홍은수(Eun-Soo Hong),박의섭(Eui-Seob Park),신희순(Hee-Soon Shin),박찬(Chan Park),김형목(Hyung-Mok Kim) 한국암반공학회 2008 터널과지하공간 Vol.18 No.1

대부분의 터널 침수사고는 파쇄대나 단층대 등과 같은 큰 투수성을 가진 구간에서 발생하는 막대한 용수와 관련이 있다. 침수사고의 원인과 대책을 알아보기 위해 시공중 사고 사례를 연구하였으며, 사례분석 결과 침수가 사전에 예측되고 터널 굴착 전에 사전 배수가 이루어진다면 이러한 사고는 충분히 방지할 수 있는 것으로 나타났다. 이러한 분석 결과에 의하여 이 연구에서는 사전 지반조사와 사전 배수 개념에 의한 새로운 수평 배수 시스템을 제안하였다. 해저터널 시공중에 배수관에 의한 터널 막장의 수압 감소 효과를 분석하기 위해 침투류 해석을 실시 하였으며, 배수 시스템의 성능을 분석하기 위해 배수 시스템 분석을 실시하였다. 해석 결과 제안된 사전 배수 시스템이 명백한 배수와 수압감소 효과를 나타났다. 따라서 이 시스템은 해저 터널에 적용되는 기존의 배수 시스템에 대한 대안으로 적용하는 것이 충분히 가능하다. Most of flooding cases in tunnels are associated with huge inrushes of water due to the fracture zone with very high water head. To find out the causes and countermeasures for flooding cases, a dozen of tunneling cases are studied. Case studies presented here show that if the flooding had been forecasted and pre-drained prior to the tunnel excavation, such accidents could have been prevented. From this observation, we suggest a new horizontal drainage system with pre-investigation and pre-drainage concept. Seepage analyses are performed to analyze the water head reduction effect on the tunnel face by drainage pipes during the construction of subsea tunnels. Drainage system analyses are performed to analyze performance of the drainage system. These analysis results show that the suggested horizontal pre-drainage system provides a clear drainage and water head reducing effect. Finally, the proposed system can be a new alternative to the present water controlling methods applied to subsea tunnels.