Subsea Processing and Boosting - Building Blocks for Scenarios

Euphemio, Mauro Lopes; Kuchpil, C.; Figueiredo, Maria do Livramento Fortes

doi:10.4043/otc-20186-ms

Cited by 2 publications

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“…Also, since they are installed downhole, the cost of intervention in case of failure will be high. However, a design developed by Petrobras in conjunction with Brazilian University and joint industry project (JIP), integrates a fluid expansion chamber and helix with a high power, high reliability ESP, and therefore they operate for years at high flow rate and in harsh environments 18,10 .…”

Section: Boostingmentioning

confidence: 99%

Subsea Processing: A Holistic Approach to Marginal Field Developments

2012

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DescriptionThe application of Full Subsea Processing (FSP) to develop remotely located marginal fields in Offshore West Africa is an attractive option for breaking the techno-economic barriers which have long hindered the development of these fields. Some of the fields have remained marginal and unproduced over the years, arguably, due to incorrect estimates in recoveries and economics occasioned by erroneous estimates in basic input parameters. Therefore, the right method of application for developing marginal fields must be sought to ensure that both National and International Operating Companies partake in the development of these fields.The present paper explores the use of full subsea processing technology to develop marginal fields economically. ApplicationThe economic development of marginal fields in Offshore West Africa poses huge technology challenges. These challenges are further complicated as the field is located offshore with long step-out distance from existing processing facilities. A good number of such fields exist in Nigeria with no concrete plans in place yet to develop them due to the challenges involved.Subsea processing which has recently gained broader acceptance in the industry offers a viable and attractive method of developing such fields. Results, Observations, ConclusionsExtensive qualification of the different technologies available for carrying out FSP has been conducted and their various readiness levels determined. A systematic analysis of an existing marginal field has also been done to reveal the enormous advantages stemming from the application of FSP. Increased recovery and reduced OPEX have been established as vital incentives for developing marginal fields economically. Various methods of overcoming the long distance associated with remote fields are developed and the best method which incorporates a floating storage unit (FSU) identified. A holistic approach which considers developing a group of fields together rather than a single field at a time is adopted to develop the remote offshore marginal fields in offshore West Africa. 2 OTC 22860

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Section: Boostingmentioning

confidence: 99%

Subsea Processing: A Holistic Approach to Marginal Field Developments

2012

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“…Regarding the considered base case for present study, advantages can be summarized in increasing the ultimate recovery by lowering the abandonment pressure and enabling oil recovery for low pressure / low quality oil reservoir. Electrical Submersible Pumps (ESP) are already well known and widely used in subsea wells and caissons [8]. Several pumping technologies are currently available on the market.…”

Section: Multiphase Boostingmentioning

confidence: 99%

Remote Deepwater Oil Field Tie-Back: Conventional Or Innovative Solution?

Argento¹,

Russo

Magi

et al. 2011

All Days

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The use of subsea technologies and innovative field architectures as development solutions for oil and gas fields is fast becoming a reality. In the last ten years more than half of new global oil and gas reserves have been discovered offshore, especially in deepwater. This paper shows the selection path followed systematically for the proper technical and economical solution selection, passing through concept screening and case-specific conceptual studies. A typical case study will be presented in this paper, showing the advantages to be gained in using the proposed selection exercise, including flow assurance strategies, for the development of challenging new upcoming reserves deepwater. The values presented are for a generic offshore development. The purpose is to pinpoint the limits of existing technologies, identify new subsea architectures implementing upcoming subsea processing solutions and compare and illustrate the performances of several configurations for a development in about 1000 m of water, through a case study. A problematic oil will be considered, having a density in the range of 20-30 °API, a GOR in the range of 200-400 scf/bbl, wax and hydrate formation risk. Total liquid flowrate in the example is around 50,000 bbl/d, selected in order to be out of giant project frame. Conventional loop, single production line, electrical heating, gas/liquid separation, subsea liquid or multiphase boosting are the scrutinized solutions, applied considering on site or long distance topside facilities and upward or downward production line path. The analysis reported in this paper evidences the technical feasibility and when benefits are obtainable implementing subsea processing technology on offshore oil and gas fields. The principles described could be the base to perform a multiparameters study for real case technology selection. This paper examines the drawbacks, limitations and advantages of various field architectures and technology solutions, that may be considered for deepwater oil development. It covers the different production phases, from start-up to tail production, without forgetting flow assurance issues, typical of long satellite tie-back lengths in deep waters.

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Subsea Processing and Boosting - Building Blocks for Scenarios

Cited by 2 publications

References 0 publications

Subsea Processing: A Holistic Approach to Marginal Field Developments

Subsea Processing: A Holistic Approach to Marginal Field Developments

Remote Deepwater Oil Field Tie-Back: Conventional Or Innovative Solution?

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