The Study on the SIT Technology of Subsea ILM

2014 ◽  
Vol 986-987 ◽  
pp. 975-979
Author(s):  
Xiao Lei Zhao ◽  
Zhi Xing Wu ◽  
Le Ping Chu ◽  
Xing Wei Guo ◽  
Jin Yu Chen
Keyword(s):  
Deep Water ◽  
Production System ◽  
System Integration ◽  
Oil And Gas ◽  
Depth Range ◽  
Development Mode ◽  
Gas Field ◽  
Integration Test ◽  
Oil And Gas Field ◽  
Subsea Production System

With the development of offshore oil and gas field enters into deep water constantly, subsea production system has become the main development mode in deep water development. Subsea Inline manifold (ILM) is common facilities in subsea production system and is used to gather oil and gas from the side subsea wells. Two subsea ILMs has been adopted in Panyu 35-1/35-2 Gas field with water depth range from 194 to 338 m in South China Sea. System integration test (SIT) is very important for the subsea production facilities. This paper states the flow chart, master equipment, purpose and precautions for each test of ILM SIT, which collects great technology for the development of subsea production system.

The Research on the Factory Accept Test Technology of Subsea PLET

2014 ◽  
Vol 986-987 ◽  
pp. 1619-1623
Author(s):  
Xiao Lei Zhao ◽  
Le Ping Chu ◽  
Xing Wei Guo ◽  
Guo He Yu ◽  
Jin Yu Chen
Keyword(s):  
Deep Water ◽  
Production System ◽  
Oil And Gas ◽  
Development Mode ◽  
Gas Field ◽  
Oil And Gas Field ◽  
Subsea Production System ◽  
Offshore Oil And Gas ◽  
Embedded Type ◽  
Offshore Oil

With the development of offshore oil and gas field enters into deep water constantly, subsea production system has become the main development mode in deep water development. Pipeline End Termination (PLET) is common facilities in subsea production system and is used to provide subsea tieback interface. An embedded type PLET has been adopted in Panyu 35-1/35-2 Gas field with the water depth of 194 to 338 m. Factory Accept Test (FAT) is very important for the subsea production facilities, and the references is very limited due to technical security. This paper in detail states the flow chart, master equipment, purpose and precautions for each test of FAT for PLET, which collects great technology for the development of subsea production system.

Testing Technology of Subsea Christmas Tree

2012 ◽  
Vol 591-593 ◽  
pp. 2523-2526
Author(s):  
Bao Yan Chen ◽  
Meng Lan Duan ◽  
Ming Zeng ◽  
Shi Chao Lu ◽  
Zhuo Liu ◽  
...  
Keyword(s):  
Deep Water ◽  
System Integration ◽  
Development Process ◽  
Oil And Gas ◽  
Acceptance Testing ◽  
Christmas Tree ◽  
Gas Field ◽  
Equipment Manufacturing ◽  
Testing Technology ◽  
Oil And Gas Field

As an important part of the deep-water oil and gas field, the development process of subsea Christmas tree includes design, manufacture and test. The testing technology of subsea Christmas tree supplies reliability and security for the use of subsea Christmas tree, and it`s an important content of the localization of subsea Christmas tree. This paper takes Zhuhai deep water subsea engineering equipment manufacturing and testing base as the basis, in accordance with relevant specifications and engineering examples, mainly studies the factory acceptance testing and the system integration testing of subsea Christmas tree and puts forward the content and steps of the testing. Meanwhile, the site requirements are analysed which will provide technical support for the subsea Christmas tree testing research and provide references and recommendations for the establishment of Zhuhai base in China.

Risk Assessment of Subsea X-Tree System

2011 ◽  
Vol 148-149 ◽  
pp. 1000-1006 ◽  
Author(s):  
Chang Yong Wang ◽  
Hong Huan Zhang ◽  
Meng Lan Duan
Keyword(s):  
Risk Assessment ◽  
Risk Analysis ◽  
Reliability Analysis ◽  
Deep Water ◽  
Production System ◽  
Oil And Gas ◽  
Oil And Gas Exploration ◽  
Analysis Process ◽  
Subsea Production System ◽  
Exploration And Development

That the oil and gas exploration and development is extending into deep water proceeds the rapidly shift to subsea production system. However, complex subsea equipment and frequency offshore accidents aroused the concern on the risk assessment of subsea system. The paper illustrates the hazard aspects which should be focused on in the subsea equipment compared with the surface equipment. The hazards identification and risk analysis on subsea X-tree system is carried out. A general risk-prevent process of subsea X-tree system is illustrated, so does the reliability analysis process. Besides, some commendations on subsea detection and maintenance are presented in the paper.

Long Pile Upending Lifting Study for Fixed Platform on Offshore Oil and Gas Field

2014 ◽  
Author(s):  
Yandong Zhou ◽  
Facheng Wang
Keyword(s):  
Deep Water ◽  
Oil And Gas ◽  
Cost Effective ◽  
Analysis Model ◽  
Gas Reservoirs ◽  
Gas Field ◽  
Water Developments ◽  
Oil And Gas Field ◽  
Offshore Oil And Gas ◽  
Offshore Oil

Fixed platform have been widely employed in the offshore oil and gas reservoirs development. Pile foundation reliability is critical for these platforms where drilling, production and other functions are integrated. The lifting operation for the long pile, being a key step in the jacket installation, has been considered for further developments. With deep water developments, the sizes and weights of long piles are reasonably bigger. The corresponding process and equipment employed are subsequently altered, which brings challenges to developing a cost-effective, easy-operable approach for lifting operation. In this paper, the technology for the offshore long pile upending lifting operation including pile feature, installation methodology, lifting rigging and analysis model, covering water depths ranging from shallow to near deep water zone (60–300 m water depth) has been suggested. In addition, the applicability of the adoptable novel approaches has been discussed considering the practical project experience.

Stress Analysis of the Submarine Framework Based on Inventor

2014 ◽  
Vol 501-504 ◽  
pp. 607-610
Author(s):  
Wei Qun ◽  
Xuan Li
Keyword(s):  
Stress Analysis ◽  
Oil And Gas ◽  
Frame Structure ◽  
Normal Operating Condition ◽  
Gas Field ◽  
Structural Framework ◽  
Oil And Gas Field ◽  
Subsea Production System ◽  
Offshore Oil And Gas ◽  
Offshore Oil

With the development of offshore oil and gas field, subsea production system has become an important mode in the deepwater development. Underwater manifold and structural framework have played a crucial role in the underwater system. The article describes the stress analysis of submarine framework based on Inventor. And the paper studies the change of framework about stress and displacement on the normal operating condition. The method ensures that the frame structure has met the design objectives and requirements. Meanwhile, it has played a key role on the submarine structure researching and provided effectively reference for the future designing.

Risk Assessment and Reliability Analysis of Subsea Production Systems

2020 ◽  
Author(s):  
Liaqat Ali ◽  
Shan Jin ◽  
Yong Bai
Keyword(s):  
Risk Assessment ◽  
Reliability Analysis ◽  
Deep Water ◽  
Production System ◽  
Evaluation Method ◽  
Oil And Gas ◽  
Production Systems ◽  
Risk Identification ◽  
Subsea Production System ◽  
The Impact

Abstract In past years, offshore oil and gas accidents have often occurred. Environmental hazards have the capability of turning into very difficult to manage in addition with the modern technology limits and lack of a fail-safe operation that can identify, control and terminate the accidents. However, the offshore crude oil also natural gas search and development is expanding to deep-water and moving promptly to the subsea production systems. (SPS). Though, the complicate subsea equipment material besides frequency offshore disasters stimulated the consideration onto the risk analysis of subsea systems. Detection of the impact of deep-water oil and gas reserves in the subsea production system. However, loss of SPSs can contribute to massive industrial failure, severe natural pollution, and indeed serious disasters. Therefore, the reliability analysis and safety of SPS have turned into a dominant consideration. This study addresses on the hazards and risk conditions which must be concentrated in the subsea machinery associated within surface equipments. Furthermore, the risks identification also the risk investigation onto subsea “Xmas tree” system is brought out. An over-all risk avert procedure of subsea “Xmas tree” system is represented, also the reliability evaluation method. Moreover, several recommendations on subsea production maintenance and detection are given in this research. This paper is reviewing the following section, subsea production system, hazards or risk identification, environmental issues, hydrate problems, corrosion problems, safety issues, risk assessment on subsea “Xmas tree”, reliability issues of a subsea system.

Reliability Modelling of Subsea Cluster Manifolds Based on the Fault Tree Analysis

2016 ◽  
Author(s):  
Yingying Wang ◽  
Fangqiu Li ◽  
Menglan Duan ◽  
Houfa Liu ◽  
Jiandong Gu
Keyword(s):  
Production System ◽  
Oil And Gas ◽  
Fault Tree ◽  
Fault Tree Analysis ◽  
Economic Losses ◽  
Gas Field ◽  
Tree Analysis ◽  
Reliability Modelling ◽  
South Sea ◽  
Subsea Production System

The cluster manifold becomes an essential part in a subsea production system and it has been widely used in the development of ultra-deepwater oil and gas fields. One hand, it can gather the production fluid from subsea wells. On the other hand, it can distribute water, gas and chemical agents from the floating production system to each subsea well. Hence, the failure of subsea cluster manifolds may not only lead to the stagnation of production wells and economic losses but also cause environmental pollution and human health in severe cases. Therefore, the reliability of subsea cluster manifolds is quite of importance and it should be studied for the safety service of the subsea production system. Based on the fault tree analysis (FTA), this paper will discuss the failure cause of six well slots subsea cluster manifolds in LiWan 3-1 gas field in China South Sea. Considering the pipeline structure, control system and flow assurance, the fault trees of subsea cluster manifolds are built. Meanwhile, the importance degrees of each elementary event are ranked orderly and the minimum cut sets are obtained through analyzing the structure important of the FTA. The failure major reasons are obtained and the preventive measures are proposed, which could have some guiding significance for the operations of subsea cluster manifolds system in China South Sea.

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