Towing Analysis of Multi-Cylinder Platform for Offshore Marginal Oil Field Development

2016 ◽  
Author(s):  
Zhijuan Zhao ◽  
Yougang Tang ◽  
Zhirong Wu ◽  
Yan Li ◽  
Zhenkui Wang
Keyword(s):  
Stability Analysis ◽  
Pile Foundation ◽  
Structure Design ◽  
Oil Field ◽  
Stability Characteristic ◽  
Ballast Tank ◽  
Field Development ◽  
Oil Field Development ◽  
Damage Stability ◽  
Marginal Field

As the development of offshore marginal field becomes a heated topic, various design selections of offshore platform have already been put forward in the community such as Sevan SSP, IQFP-FPSO, octagonal FPSO or sandglass-type FDPSO. In this paper, a new Muliti-Cylinder FPSO (MCPSO) with section pile foundation is proposed for developing offshore marginal field in South China Sea. And the structure design in detail has been described. The MCPSO consists of six cylindrical concrete tanks and six suction piles. The suction piles can be raised up during platform towing process. Considering the effects of tanks and piles on the towing stability, both intact and damage stability analysis of MCPSO were performed under different towing conditions. The influence of ballast ratio, towing direction and different damaged modes on the towing stability is analyzed. The results indicate that the MCPSO has the characteristics of self-installation, movable, reusable and so on, which is suitable for the development of marginal oil field. The MCPSO filled with 40% seawater in ballast tank and towed in 90 direction has the best intact and damage stability characteristic.

Management of Nigerian Marginal Oil Fields for Economic Sustainability in Niger Delta Region

2021 ◽  
Author(s):  
Humphrey Otombosoba Oruwari
Keyword(s):  
Natural Gas ◽  
Niger Delta ◽  
Oil Field ◽  
Delta Region ◽  
Field Development ◽  
Niger Delta Region ◽  
Oil Field Development ◽  
The People ◽  
Multiple Case ◽  
Marginal Field

Abstract The objective of the study was to examine the assertion that marginal oil field development remains one of the economic fortunes of Niger Delta region in Nigeria. This is evident with its shares in the region power output as well as its contribution to the industrialization. Multiple case studies of marginal oil field operations corroborate the relationship between marginal field development and economic fortunes of Niger Delta region. Marginal field firms provide electricity to the host communities where they operate. Also, industries are fed with natural gas from marginal field operating in the region. The marginal field operators ensures that host communities are getting electricity. Also cement factory is fed from natural gas operating in the area. However, the management of marginal field resources has been far from being optimally beneficial. The real issue is how to manage the marginal field for the welfare of the people. Against this background, the study findings suggested that the country marginal field wealth be used to implement people-oriented programmes for better welfare spread.

Diagnostic Plots for Production Decline During the Transition of Oil Field Development From Depletion to Water Injection

2021 ◽  
Author(s):  
Vil Syrtlanov ◽  
Yury Golovatskiy ◽  
Ivan Ishimov
Keyword(s):  
Water Injection ◽  
Simulation Models ◽  
Oil Field ◽  
Production Data ◽  
Oil Reservoir ◽  
Field Development ◽  
Well Production ◽  
Diagnostic Plots ◽  
Oil Field Development ◽  
Analytical Approaches

Abstract In this paper the simplified way is proposed for predicting the dynamics of liquid production and estimating the parameters of the oil reservoir using diagnostic curves, which are a generalization of analytical approaches, partially compared with the results of calculations on 3D simulation models and with actual well production data.

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