Application of Seismic-Guided Reservoir Property Mapping to the Dulang West Field, Offshore Peninsular Malaysia

Corbett, Chip; Solomon, G.J.; Sonrexa, Kartikay; Ujang, Salehudin; Ariffin, Tajjul

doi:10.2118/30568-ms

All Days 1995

DOI: 10.2118/30568-ms

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Application of Seismic-Guided Reservoir Property Mapping to the Dulang West Field, Offshore Peninsular Malaysia

Chip Corbett¹,

G.J. Solomon

Kartikay Sonrexa

et al.

Abstract: TX 7508:Y-3836, U.S.A.. fax 01-214-952-9435. AbstractA process is demonstrated for building a deterministic reservoir model, using 3D acoustic impedance inversion and seismic-guided log property distribution. The extraction of fluid and pore volumes at proposed drilling locations assists the qualification of reservoir development scenarios. Fluid flow simulation assists the field development.

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Cited by 2 publications

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Waterflood Optimization Using a Combined Geostatistical – 3D Streamline Simulation Approach: A Field Example

Spath

McCants²

1997

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TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractStochastic reservoir description techniques are combined with a three-dimensional streamline simulator to optimize volumetric sweep efficiency in a mature, West Texas waterflood. Results from the streamline model were validated using an IMPES, finite-difference scheme. It is shown that the combination of multiple-realization property distribution with an efficient streamline model is an attractive alternative to the traditional, finite-difference approach. Performance predictions are made for the placement of new infill wells (vertical and horizontal) and for pattern modification by selectively shutting in existing injectors.Geostatistical techniques including kriging and cokriging are used to generate realizations of property distributions. Fundamental to the geostatistical techniques described is the honoring of hard data and we illustrate the importance of integrating various data sources to constrain these techniques. Specifically, production, core, log, pressure transient, geological and 3D seismic data were combined to estimate near-well properties and to place realistic constraints on distributing porosity, permeability and net-to-gross thickness. The advantages and the applicability of the streamline approach are outlined as well as the caveats. Primarily, it was found that streamline simulation is much more efficient in solving two-phase, immiscible problems and produces results equivalent to finite-difference methods.

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Waterflood Optimization Using a Combined Geostatistical – 3D Streamline Simulation Approach: A Field Example

Spath

McCants²

1997

All Days

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Calibrating Log-Derived Permeability Data to PTA for Geostatistical Integration into a Fluid-Flow Simulation Model

et al. 2001

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TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractOne of the classic problems in the development of a reservoir numerical simulation model is the question of scale. Data that are acquired from many different sources give us a view of the reservoir under different constraints. In this paper, we present a technique that integrates data from the core scale to that acquired through logs to well-test pressure transient analysis (PTA) and, finally, to the production history information. A field example from the Neuquen Basin demonstrates this procedure.PTA offers a reasonable estimate of the permeability within the drainage radius of the well.Unfortunately, these measurements usually are not made in every well. Log data typically is acquired in the field from most wells. Using recovered core data and permeability analysis from cores, a probabilistic petrophysical model, honoring that core data, is constructed. The petrophysical model is applied throughout the field and used in constructing a geocellular model. The model can be investigated in positions equivalent to the volumes investigated by the PTA, and the petrophysicallyderived permeability can be iteratively modified to match the permeability derived from the PTA. The geocellular model is upscaled for dynamic fluid-flow simulation. Finally, the production history is compared with the simulation results. The process becomes an iterative loop to achieve the best match of all the available data. This process facilitates the final history match to gas, oil and water production.

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Application of Seismic-Guided Reservoir Property Mapping to the Dulang West Field, Offshore Peninsular Malaysia

Cited by 2 publications

References 5 publications

Waterflood Optimization Using a Combined Geostatistical – 3D Streamline Simulation Approach: A Field Example

Waterflood Optimization Using a Combined Geostatistical – 3D Streamline Simulation Approach: A Field Example

Calibrating Log-Derived Permeability Data to PTA for Geostatistical Integration into a Fluid-Flow Simulation Model

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