The Application of FPSO in Oil and Gas Exploitation

2012 ◽  
Vol 256-259 ◽  
pp. 1952-1955
Author(s):  
Ting Guo ◽  
Hong De Qin

The far-flung ocean has abundant resource and the exploitation area of ocean oil and gas is developing from offshore to deepwater and ultra-deepwater following the increase demand for oil and gas resource. Therefore, one of the floating structures for deepwater exploitation is FPSO. The yaw of FPSO is more important problem to solve. This paper use Hydrostar to compute the RAOs, 1st-order and 2nd-order force of FPSO. A comprehensive review is introduced about the research on FPSO hydrodynamic in the world, including the coupling hydrodynamic analysis of deepwater FPSO with the mooring system. The results indicate that the FPSO’s 1st-order force and moment is a little large, however, the RAOs and 2nd-order force and moment are good. The FPSO with single point mooring system can control the displacement of FPSO effectively.

2013 ◽  
Vol 437 ◽  
pp. 423-426
Author(s):  
Ting Guo ◽  
Hong De Qin ◽  
Bin Jiang

The far-flung ocean has abundant resource and the exploitation area of ocean oil and gas is developing from offshore to deepwater and ultra-deepwater following the increase demand for oil and gas resource. Therefore, one of the floating structures for deepwater exploitation is FPSO. The yaw of FPSO is more important problem to solve, the mooring system can be reduce the yaw and improve the stability. This paper research the mooring system of FPSO in South China Sea. A comprehensive review is introduced about the research on FPSO hydrodynamic in the world, including the coupling hydrodynamic analysis of deepwater FPSO with the mooring system. The results indicate that with the mooring system the FPSO can drilling in stable area, because the mooring system provide huge load. The FPSO with single point mooring system can control the displacement of FPSO effectively.


1999 ◽  
Vol 121 (2) ◽  
pp. 71-76 ◽  
Author(s):  
K. P. Thiagarajan ◽  
S. Finch

Turret-moored floating production storage and offloading (FPSO) vessels have found application in several offshore oil and gas fields in Australia’s North West Shelf (NWS). These vessels are either custom-built or converted tankers, with an internal or external turret. The position of an internal turret is decided based on a number of design considerations, primarily, available deck and interior space, and weathervaning capabilities. It is known that turret position can influence vertical motions and accelerations of a vessel, but this factor has not been given much importance, in comparison with the effects on the horizontal plane motions, primarily surge. This paper presents the results of a pilot study conducted at the Australian Maritime College, Tasmania, to study the vertical motions of a single-point moored FPSO model in waves, while systematically varying the mooring position across the length of the model. The displacement of the vessel was held constant at 50-percent-loaded condition. A single-point mooring system was designed and implemented on the model to simulate the prototype turret mooring system. Results show that the mooring location significantly affects the vertical motions and accelerations of the vessel. Astern turrets were found to produce higher heave and pitch than other locations tested. Although turrets positioned close to the longitudinal center of gravity produced the lowest overall motions, it is suggested that turret position forward of midships be preferred, as it provides a balance between lowering vertical motions and improving weathervaning characteristics.


2014 ◽  
Vol 17 (3) ◽  
pp. 146-155
Author(s):  
Quang Xuan Le ◽  
Hien Vo ◽  
Huy Huu Nguyen ◽  
Nhat Ly Minh Tran ◽  
Thang Toan Nguyen ◽  
...  

Single Point Mooring (SPM) is of great use to offshore floating structures which are currently in use in Vietnam’s coastal waters. However, this country is facing the lack of the related guidelines and standards for analysis, simulation and design of SPM system. This fact is the rationale for this paper which is aimed to propose a procedure for computation of the effects of sea environment on a SPM system. Specifically, the procedure enables the identification of maximum load exerting on the mooring buoy. Then, such identification together with the water depth parameter enables the determination of the optimal length and diameter of the desired chain. Finally, this paper presents a primary simulation of the mooring chain system according to various water depth conditions.


Author(s):  
Noor Mohammad Osmani ◽  
Tawfique Al-Mubarak

Samuel Huntington (1927-2008) claimed that there would be seven eight civilizations ruling over the world in the coming centuries, thus resulting a possible clash among them. The West faces the greatest challenge from the Islamic civilization, as he claimed. Beginning from the Cold-War, the Western civilization became dominant in reality over other cultures creating an invisible division between the West and the rest. The main purpose of this research is to examine the perceived clash between the Western and Islamic Civilization and the criteria that lead a civilization to precede others. The research would conduct a comprehensive review of available literatures from both Islamic and Western perspectives, analyze historical facts and data and provide a critical evaluation. This paper argues that there is no such a strong reason that should lead to any clash between the West and Islam; rather, there are many good reasons that may lead to a peaceful coexistence and cultural tolerance among civilizations


Author(s):  
Sherif Fakher ◽  
Abdelaziz Khlaifat ◽  
M. Enamul Hossain ◽  
Hashim Nameer

AbstractIn many oil reservoirs worldwide, the downhole pressure does not have the ability to lift the produced fluids to the surface. In order to produce these fluids, pumps are used to artificially lift the fluids; this method is referred to as artificial lift. More than seventy percent of all currently producing oil wells are being produced by artificial lift methods. One of the most applied artificial lift methods is sucker rod pump. Sucker rod pumps are considered a well-established technology in the oil and gas industry and thus are easy to apply, very common worldwide, and low in capital and operational costs. Many advancements in technology have been applied to improve sucker rod pumps performance, applicability range, and diagnostics. With these advancements, it is important to be able to constantly provide an updated review and guide to the utilization of the sucker rod pumps. This research provides an updated comprehensive review of sucker rod pumps components, diagnostics methods, mathematical models, and common failures experienced in the field and how to prevent and mitigate these failures. Based on the review conducted, a new classification of all the methods that can fall under the sucker rod pump technology based on newly introduced sucker rod pump methods in the industry has been introduced. Several field cases studies from wells worldwide are also discussed in this research to highlight some of the main features of sucker rod pumps. Finally, the advantages and limitations of sucker rod pumps are mentioned based on the updated review. The findings of this study can help increase the understanding of the different sucker rod pumps and provide a holistic view of the beam rod pump and its properties and modeling.


Transport ◽  
2009 ◽  
Vol 24 (1) ◽  
pp. 54-57 ◽  
Author(s):  
Vytautas Paulauskas

Single point mooring (SPM) is used when typical port facilities cannot be applied. Offshore platforms and terminals producing oil and gas are the places where SPM can be employed. Accidents with SPM equipment and ships occurring during loading or unloading operations are very dangerous and may cause serious losses due to the high prices of tankers and facilities and because of polluting the environment with poisonous materials. Any possibilities of decreasing risk and increasing safety are very important. This paper presents the analysis of dangerous situations with tankers and SPM, discusses theoretical basis for study and makes practical calculations and recommendations on decreasing accidence probability during loading operations.


Author(s):  
Angus Bowie

Double Block and Bleed is a term often used in the oil and gas industry to define a level of isolation sufficient to perform maintenance activities. The true definition relates to incumbent valves providing two proven levels of isolation against the outboard pressure to permit breaching of containment in the isolated pipe. This paper assesses how temporary isolation devices can provide equivalent isolation where incumbent valves do not exist at appropriate locations in the system. It reviews the different interpretations of Double Block and Bleed used within the industry and compares how different isolation devices are assessed in relation to the level of isolation they provide. It will reference several examples from around the world of where temporary isolation devices have been used to replace valves and perform repairs in trunk pipelines without depressurising the whole pipeline. It will also cover examples of isolating live process pipe to perform maintenance activities outside plant shutdown.


2021 ◽  
Author(s):  
Ahmad Hafizi Bin Ahmad Zaini ◽  
M Khairi Bin Rahim ◽  
M Hairi Bin Razak ◽  
Steve Moir

Abstract Abandonment and decommissioning activities of oil and gas assets had been on the increasing trend. As an activity of minimal to no economic value return, the investment into Abandonment and Decommissioning (A&D) should be properly strategized to ensure all objectives are met safely within available time and resources. This paper will discuss Operator's strategy in planning and handling waste from A&D activities of fifteen (15) deepwater subsea wells in Mauritania, West Africa. The approach of this A&D project at a remote location was done in two separate campaign instead of a single campaign based on technical and commercial evaluations performed by Operator. Subsea structures, Christmas trees, tubulars and others are expected to be retrieved and disposed according to local and international standard. In general, Operator are expecting two (2) type of waste which are non-hazardous waste and hazardous waste due to hydrocarbon or naturally occurring radioactive material (NORM) contamination. Due to the limitation of capable hazardous waste handling and disposal in country, Operator decided to export waste to identified facilities outside of country at the end of the project via sea-freight. Operator appointed one contractor to provide a full-service related to the waste management and disposal that covers field services and onshore services that includes radiological monitoring to identify NORM waste, labelling, packaging at offshore, onshore storage, transportation and logistics that include Trans-Frontier Shipment (TFS). The strategy of appointing one contractor for full service of waste management and disposal has promoted a single – point accountability to the contractor and this has enabled the objective been delivered effectively. COVID-19 pandemic posed a great challenge on cross-border logistic planning due to additional measure been imposed by receiving country. Furthermore, the new development of United Kingdom exiting European Union (BREXIT) also posed some level of uncertainty to the contractor to obtain relevant approvals for waste export. To reduce the amount of waste to be export, Operator continuously looking for and successfully found a local recycling facility that able to handle the non-hazardous waste while meeting local regulation, Operator's and industrial standard. All outlined strategy was proven to be effective for waste management in remote location, uncertainty on cross-border waste export challenge, as well as capitalizing on the limited local resources available.


2021 ◽  
pp. 932-950
Author(s):  
Vladislav Vyacheslavovich Emelyanov

Every few decades, the world order changes due to various geopolitical, economic and other circumstances. For example, as a result of globalization, the world order has undergone significant changes in the last forty years. Globalization has led to the destruction of the postwar world order, as well as to world leadership by the United States and the West. However, in recent decades, as a result of globalization, the U.S. and the West began to cede their leadership to developing countries, so there is now a change in the economic structure of relations in the world system. Today the center of economic growth is in the East, namely in Asia. There are no new superpowers in the world at the moment, but the unipolar world will cease to exist due to the weakening of the U. S. leadership, which will lead to a change in the world order. A new leader, which may replace the U. S., will not have as wide range of advantages as the USA has. Most likely, the essence of the new order will be to unite the largest countries and alliances into blocks, for example, the USA together with the Trans-Pacific Partnership, the EU, etc. The article outlines forecasts of GDP growth rates as well as the global energy outlook; analyzes the LNG market as well as the impact of the pandemic on the global oil and gas market; and lists the characteristics of U. S. geopolitics.


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