Secondary natural gas recovery: Targeted applications for infield reserve growth in midcontinent reservoirs, Boonsville Field, Fort Worth Basin, Texas. Topical report, May 1993--June 1995

Hardage, Bob A.; Carr, David L.; Finley, Robert J.; Tyler, Noel; Lancaster, D.E.; Elphick, R.Y.; Ballard, James

doi:10.2172/204122

Cited by 6 publications

(2 citation statements)

References 12 publications

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“…However, these studies were mainly focused on the entire Fort Worth Basin. Hardage et al (1996b;1996c) and Carr et al (1997) analyzed the reservoir distribution and depositional subfacies using a few typical wells from this study area, but their model is not sufficiently detailed to be useful for facies analysis of this thin Caddo sequence. In addition, the tight non-reservoirs were generally not studied even though both the limestones and reservoir sandstones exist and appear seismically similar in the Boonsville Field.…”

Section: Well-based Depositional Modelmentioning

confidence: 99%

Calibration of Seismic Attributes for Reservoir Characterization

Pennington¹

2002

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The project, "Calibration of Seismic Attributes for Reservoir Calibration," is now complete. Our original proposed scope of work included detailed analysis of seismic and other data from two to three hydrocarbon fields; we have analyzed data from four fields at this level of detail, two additional fields with less detail, and one other 2D seismic line used for experimentation. We also included time-lapse seismic data with ocean-bottom cable recordings in addition to the originally proposed static field data. A large number of publications and presentations have resulted from this work, inlcuding several that are in final stages of preparation or printing; one of these is a chapter on "Reservoir Geophysics" for the new Petroleum Engineering Handbook from the Society of Petroleum Engineers.Major results from this project include a new approach to evaluating seismic attributes in timelapse monitoring studies, evaluation of pitfalls in the use of point-based measurements and facies classifications, novel applications of inversion results, improved methods of tying seismic data to the wellbore, and a comparison of methods used to detect pressure compartments. Some of the data sets used are in the public domain, allowing other investigators to test our techniques or to improve upon them using the same data.From the public-domain Stratton data set we have demonstrated that an apparent correlation between attributes derived along 'phantom' horizons are artifacts of isopach changes; only if the interpreter understands that the interpretation is based on this correlation with bed thickening or thinning, can reliable interpretations of channel horizons and facies be made. From the publicdomain Boonsville data set we developed techniques to use conventional seismic attributes, including seismic facies generated under various neural network procedures, to subdivide regional facies determined from logs into productive and non-productive subfacies, and we developed a method involving cross-correlation of seismic waveforms to provide a reliable map of the various facies present in the area. The Wamsutter data set led to the use of unconventional attributes including lateral incoherence and horizon-dependent impedance variations to indicate regions of former sand bars and current high pressure, respectively, and to evaluation of various upscaling routines. The Teal South data set has provided a surprising set of results, leading us to develop a pressure-dependent velocity relationship and to conclude that nearby reservoirs are undergoing a pressure drop in response to the production of the main reservoir, implying that oil is being lost through their spill points, never to be produced. Additional results were found using the public-domain Waha and Woresham-Bayer data set, and some tests of technologies were made using 2D seismic lines from Michigan and the western Pacific ocean.

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Section: Well-based Depositional Modelmentioning

confidence: 99%

Calibration of Seismic Attributes for Reservoir Characterization

Pennington¹

2002

View full text Add to dashboard Cite

show abstract

Section: Well-based Depositional Modelmentioning

confidence: 99%

Calibration of Seismic Attributes for Reservoir Characterization

Pennington¹

2002

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Importance of inclusion in time-lapse studies Reservoir behavior detected from time-lapse seismic observations Our work on these four data sets is now essentially complete, and our attention is focussed on new tech transfer methodologies, including the use of tutorials and other examples on CD-rom as well as the conventional publications and presentations. The results of the Teal South data set have already attracted some attention due to their implications for reservoir management and exploitation techniques.

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Use of 3D digital analogues as templates in reservoir modelling

Bryant

Carr²,

Cirilli

et al. 2000

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Geological analogues may be used to rigorously interpret three-dimensional (3D) subsurface reservoir geometry by combining the capabilities of graphics workstations with digital outcrop data collection. Digital data from sedimentary environments and outcropping geological formations are interpreted in a 3D viewing environment to construct 3D templates of analogues for reservoir bodies. These 3D geometries and associated scaling parameters are then available to build 3D digital hypotheses concerning subsurface reservoir geometries. Two examples serve to illustrate this approach. Data from a modern fluvial system in the USA are used to construct digital templates. Interpretation of this dataset enables the relationship between 3D external geometries of sedimentary units to be rigorously defined and related to internal sedimentary structures. The location of gas-filled reservoir compartments in the Carboniferous Bend Conglomerate reservoirs of the Boonsville Field in North Texas are then interpreted using such analogue-derived digital templates.

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Secondary natural gas recovery: Targeted applications for infield reserve growth in midcontinent reservoirs, Boonsville Field, Fort Worth Basin, Texas. Topical report, May 1993--June 1995

Cited by 6 publications

References 12 publications

Calibration of Seismic Attributes for Reservoir Characterization

Calibration of Seismic Attributes for Reservoir Characterization

Calibration of Seismic Attributes for Reservoir Characterization

Use of 3D digital analogues as templates in reservoir modelling

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