Integrated Usage of Surveillance Data for Estimating Cap Rock Integrity and Heat Distribution during Steam Injection in a Fractured Carbonate Reservoir

Schoofs, Stan; Al-Lawati, Mohamed; Engen, G.; Salmi, Khalid; Quseimi, Issa; Kindy, Fahad Al; Marsden, Christopher T.; Ita, Joel; Heyden, Frank Van Der; Bauer, Andreas

doi:10.2523/129479-ms

Cited by 4 publications

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“…The interpretation of all these combined data supported the business decisions to re-complete one of the injectors with a larger casing size and re-perforating and acidizing all injectors. This achieved the target injection rates of 1500 t/d of steam at lowered injection pressures (cf [8]). …”

Section: Thermal Phase I Fractured Carbonate Field Developmentmentioning

confidence: 95%

Thermal EOR Field Development and Well and Reservoir Management

Zwaan¹,

López²,

Landman³

2015

All Days

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At the early phases of EOR developments, small scale pilots are commonly used to obtain information of the EOR field development mechanisms. The lessons learnt from these early pilots are subsequently used to de-risk and improve the full field developments.In initial phases, well and reservoir surveillance plays an important role to increase the understanding of the effectiveness of the EOR processes in the various reservoirs. Well-planned and executed reservoir surveillance has proven in the past to de-risk and optimise production and ultimate recovery from reservoirs significantly. This paper discusses the important field development decisions in Thermal Injection projects, which have been based on well and reservoir surveillance results. A clear methodology is presented to select surveillance strategies dependent on the field development decisions that need to be taken.

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Section: Thermal Phase I Fractured Carbonate Field Developmentmentioning

confidence: 95%

Thermal EOR Field Development and Well and Reservoir Management

Zwaan¹,

López²,

Landman³

2015

All Days

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Section: Thermal Oil Recovery In a Fractured Carbonatementioning

confidence: 96%

EOR Field Management Through Well-Planned Surveillance

et al. 2012

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PDO has implemented Enhanced Oil Recovery (EOR) methods including thermal, chemical and miscible gas injection projects in several fields. In the initial phase of these EOR projects, well and reservoir surveillance is key to increase the understanding of the effectiveness of the EOR processes in the various reservoirs.However, the interpretation of this advanced surveillance data and integration into well and reservoir management workflows is still challenging. This paper describes the results of the integrated workflows for the interpretation, modeling and integration of surveillance data in four EOR projects. The surveillance methods include geomechanical modeling, thermal reservoir modeling and monitoring through time lapse seismic, surface deformation, microseismic, temperature, pressure and saturation logging. This paper shows that the surveillance has contributed to the understanding of recovery mechanism in a pattern steam flood, it has supported decisions well-recompletions and work-overs and it has supported decisions on injection rates and surveillance planning in the chemical flood project.

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“…The causes of this phenomenon may be various. The rocks may lose their tightness due to the primary fracturing of the intact caprock, being a consequence of reactivation of the existing faults or propagation of the existing faults in the rock matrix due to tangential or normal stresses in the fault [12].…”

Section: Gas Escapes Through Faults and Fracturesmentioning

confidence: 99%

An evaluation of hydrocarbon deposit tightness in aspect of CO₂ sequestration

Blicharski¹

2015

drill

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Integrated Usage of Surveillance Data for Estimating Cap Rock Integrity and Heat Distribution during Steam Injection in a Fractured Carbonate Reservoir

Cited by 4 publications

References 0 publications

Thermal EOR Field Development and Well and Reservoir Management

Thermal EOR Field Development and Well and Reservoir Management

EOR Field Management Through Well-Planned Surveillance

An evaluation of hydrocarbon deposit tightness in aspect of CO₂ sequestration

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Integrated Usage of Surveillance Data for Estimating Cap Rock Integrity and Heat Distribution during Steam Injection in a Fractured Carbonate Reservoir

Cited by 4 publications

References 0 publications

Thermal EOR Field Development and Well and Reservoir Management

Thermal EOR Field Development and Well and Reservoir Management

EOR Field Management Through Well-Planned Surveillance

An evaluation of hydrocarbon deposit tightness in aspect of CO2 sequestration

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An evaluation of hydrocarbon deposit tightness in aspect of CO₂ sequestration