Time‐lapse down‐hole seismic surveys for deep EOR target monitoring in South Oman

Kiyashchenko, Denis; Mehta, Kurang; López, Jorge L.; Maamari, Abdullah Al; Adawi, Rashid; Busaidi, S. Al; Maskari, Yahya; Rocco, Guillermo

doi:10.1190/1.3628093

Cited by 6 publications

(2 citation statements)

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“…These differences between the two surveys are a direct indicator of the temperature and steam distribution. (The processing and interpretation is described in more detail in Rocco [1], Mehta [3] and [4], and Kiyashchenko [2] and [7].) Left shows the red outline resulting from integrated interpretation from seismic data with temperature logging and pressure interference data.…”

Section: Thermal Oil Recovery In a Pattern Developmentmentioning

confidence: 99%

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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Section: Thermal Oil Recovery In a Pattern Developmentmentioning

confidence: 99%

EOR Field Management Through Well-Planned Surveillance

et al. 2012

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“…Downhole 3D VSP monitoring has been applied to both onshore (O'Brien et al, 2004;Kiyashchenko et al, 2011) and offshore environments (Wu et al, 2011). In onshore environments, surface seismic repeatability often suffers from surface noise and near-surface variations caused by water-table changes or surface facilities construction.…”

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confidence: 99%

Steam-injection monitoring in South Oman—from single-pattern to field-scale surveillance

et al. 2013

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Downhole seismic monitoring has become an alternative to more conventional surface seismic in cases where the latter has low signal-to-noise ratio or poor repeatability, or when frequent monitoring of a local target is required. Downhole 3D VSP monitoring has been applied to both onshore (O'Brien et al., 2004; Kiyashchenko et al., 2011) and offshore environments (Wu et al., 2011). In onshore environments, surface seismic repeatability often suffers from surface noise and near-surface variations caused by water-table changes or surface facilities construction. For VSP surveys, the wavefield separation into downgoing and upgoing fields presents an opportunity to discriminate between near-surface and reservoir changes, thus making time-lapse applications more effective.

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