Intelligent Well Type and Optimum Completion Designs for Complex, Multi-Stacked, Compartmentalized, Oil-Rim Reservoirs

Masoudi, Rahim; Chong, Danny; Karkooti, Hooman; Othman, Mohamad; Chan, Keng Seng; Finley, Douglas

doi:10.2118/159307-ms

Cited by 8 publications

(2 citation statements)

References 25 publications

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“…The details of the workflow have been discussed elsewhere [3]. Consequently, a study was conducted on Smart well completion design based on the performance data, sub-sea well head configuration and taking account of surface facility considerations.…”

Section: Smart Well Design Methodologymentioning

confidence: 99%

Deepwater Production Improvement Through Proactive Reservoir Management and Conformance Control

et al. 2013

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Deep water fields are commonly subject to high development cost, challenging topside and subsurface issues and uncertainties. The level of heterogeneity, compartmentalization, fault intensity, reservoir connectivity, pressure and flow communication across the field, sand/fine production, wellbore stability are commonly less well understood at the time the development decision is made. The reservoirs may also consist of very thin beds to thick blocky sands and the reservoir properties can vary significantly both laterally and vertically throughout the field.Pressure maintenance and water/gas injection can be part of the selected development strategies from day one. Due to the high uncertainties and development cost, both producers and injectors might be pragmatically commingled across various reservoirs with no additional sandface control and operational flexibility. Reservoir management strategies may rely on field/reservoir level voidage replacement ratio (VRR) control with no additional selectivity and control on water/gas injection. This strategy combined with the above mentioned uncertainty issues can potentially lead to injection conformance issues and reduced recovery factor due to sub-optimal sweep efficiency at the sand by sand levels. A deep water example has been studied in this work showing the conformance issue and uneven pressure distribution confirmed by different PLT campaigns and MDT pressure surveys for various reservoirs under VRR control. TX 75083-3836, U.S.A., fax +1-972-952-9435

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Section: Smart Well Design Methodologymentioning

confidence: 99%

Deepwater Production Improvement Through Proactive Reservoir Management and Conformance Control

et al. 2013

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“…Production of first oil occurred on schedule in 2007. The K field has marked a number of firsts in the industry and for Malaysia oilfield development, in the areas of construction & use of facilities, these are documented together with some of more development and production challenges and solutions in earlier publications [1][2][3][4][5]. …”

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Malaysia Deepwater Development: Optimizing Kikeh Reservoir Management and Exploitation in a Changing Environment

et al. 2014

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Deep water fields are subject to higher development costs than more conventional field developments and often have challenging topside and subsurface issues and uncertainties. The level of heterogeneity, compartmentalization, fault intensity, reservoir connectivity, pressure and flow communication across the field, sand/fine production, wellbore stability are commonly less understood at the time the development decision is made. The reservoirs may also consist of very thin beds (cm thick) to thick blocky sands and the reservoir properties / connectivity can vary significantly both laterally and vertically throughout the field. This paper describes a deepwater case study offshore Malaysia, and in particular the challenges of optimizing deepwater Reservoir Management / development in a changing development environment. As a result of some early well failures and associated sand production, TesTrak© pressure data acquired during re-drilling some of the wells has provided an invaluable insight into the complexities of deepwater reservoir development and thin vs thick bed recovery efficiencies. This has led to further development optimization such as the deployment of SMART water injection completions and dedicated thin bed high angle wells as required to solve specific by-passed oil targets.In this paper, the above challenges and reservoir management (RMP) requirements combined with the concerns of the optimized water flooding in a complex deep water field in Malaysia have been studied and discussed. Project BackgroundThe K field example is a deepwater development located in 1330 meters water depth offshore Sabah, Malaysia. The field was discovered by the K-1 well drilled to a depth of 3600m in 2002 and marked the start of deepwater development in Malaysia. Development was sanctioned and initiated at a time of relatively low oil price (<25$/bbl), initially focussing on the thickest, most continuous reservoirs. As a consequence of oil price, the most cost effective solutions to bring the field onstream were adopted. The current oil price environment is enabling these assumptions to be challenged, and new technologies can be applied.The field has been developed via combined subsea and SPAR (dry-tree) infrastructure, and has pressure support via combined water and gas re-injection. Production of first oil occurred on schedule in 2007. The K field has marked a number of firsts in the industry and for Malaysia oilfield development, in the areas of construction & use of facilities, these are documented together with some of more development and production challenges and solutions in earlier publications [1][2][3][4][5].

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Maximizing the Production Potential of Multi-Stacked Heterogeneous Compartmentalized Oil Reservoirs by Cost Effective Intelligent Reservoir Management and Monitoring - A Case Study

Ahmed

Shahrukh

Hakim

2014

Day 1 Wed, September 10, 2014

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Intelligent Reservoir Management and Monitoring has played a key role in the pursuit of improving the hydrocarbon recovery and reducing the development expenditure in the challenging multi-stacked compartmentalized fields which have proved to be perplexing in a number of ways which include preventing or delaying water breakthrough, extenuating wellbore instability, sand production etc.Reservoir-management and monitoring options have been greatly improved in recent decade by smart completions comprising of downhole monitoring and control equipments like permanent down-hole gauges to have "eyes" into the reservoir and to monitor performance for each zone; dynamic active flow control valves, which aid in equalization of the reservoir inflow into the wellbore; and the SCADA system which enables the real time monitoring and control of the downhole and surface equipment remotely from the control room.Proper application of this methodology can be one of the most lucrative ventures that an operator undertakes, by delaying water breakthrough problem to recover additional monthly cumulative production than a conventional production method in such reservoirs. This method also results in avoiding the heavy intervention expenses, extending economic life of the field, improving reservoir management, zonal isolation, allowing real time well testing, fewer wells and less operating expenditures. This paper discusses real field design methodology and outcomes of different wells that resulted in restoring the production by greater than 1000 B/D, minimizing the OPEX by eliminating huge cost oriented interventions of $10 MM (per intervention), saving Millions of Dollar investments as CAPEX via IWC re-completion with multi-lateral technology and an augment of EUR of about 2 MMSTB per well. The paper also enlightens a comprehensive logic guideline towards the tool box of the technology, including the applied workflow, procedures and standards with the field examples and desired results.

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Intelligent Well Type and Optimum Completion Designs for Complex, Multi-Stacked, Compartmentalized, Oil-Rim Reservoirs

Cited by 8 publications

References 25 publications

Deepwater Production Improvement Through Proactive Reservoir Management and Conformance Control

Deepwater Production Improvement Through Proactive Reservoir Management and Conformance Control

Malaysia Deepwater Development: Optimizing Kikeh Reservoir Management and Exploitation in a Changing Environment

Maximizing the Production Potential of Multi-Stacked Heterogeneous Compartmentalized Oil Reservoirs by Cost Effective Intelligent Reservoir Management and Monitoring - A Case Study

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