System and method of predicting reservoir properties

Details System and method of predicting reservoir properties System and method of predicting reservoir properties

1993-09-27

1995-08-22

Hayes, Gail O.

Boots, shoes, and leggings

382159, G01V 100, G06F 15336

Patent

active

054446198

ABSTRACT:
A system and method for predicting oil reservoir properties throughout the reservoir using well data and seismic data. While the reservoir properties in the vicinity of a well borehole are usually known (i.e. by well logging), the reservoir properties between wells are unknown and difficult to estimate. Because the relationships between reservoir properties and seismic data is seldom obvious, the method uses Artificial Neural Networks (ANN's) to estimate these relationships. First, the method calculates the intersections between the seismic data and wellbore date, i.e. seismic reflectors are correlated to geological markers in the wellbores. Second, the method estimates the significance between seismic attributes and borehole properties. Next, the method models or calibrates the relationship between reservoir properties and seismic attributes by training an ANN using seismic attributes and wellbore data close to the intersections. Finally, the trained ANN uses the seismic attributes to predict the reservoir properties between wells. Advantageously, statistic methods are used to estimate the confidence of the predictions.

REFERENCES:
patent: 5107442 (1992-04-01), Weideman
patent: 5113483 (1992-05-01), Keeler et al.
patent: 5129040 (1992-07-01), Hanazato et al.
patent: 5134685 (1992-07-01), Rosenbluth
patent: 5181171 (1993-01-01), McCormack et al.
patent: 5265192 (1993-11-01), McCormack
Brown, A. R., Wright, R. M., Burkart, K. D., and Abriel, W. L., 1984. Interactive seismic mappping of net producible gas sand in the gulf of Mexico. Geophysics 49, 686-714.
Marion, D., Nur, A., Yin, H., and Han, D., 1992. Compressional velocity and porosity in sand-clay mixtures. Geophysics 57, 554-563.
Moody, J., and Darken, C., 1989. Fast Learning in Networks of Locally-Tuned Processing Units. Neural Computation 1, 281-294.
Ronen, S., Hattori, M., Geoltrain, S., and Schultz, P., 1992. Lateral Prediction of Reservoir Properties using Seismic Attributes and Well Log Data. Proceedings of 54th Meeting and Technical Exhibition, European Association of Exploration Geophysicists, Paris France.
Sonneland, L., Barkved, O., and Hagenes, O., 1990. Construction and Interpretation of Seismic Classifier Maps. Proceedings of 52nd Meeting and Technical Exhibition, European Association of Exploration Geophysicists, Copenhagen, Denmark.
Taner, M. T., Koehler, F., and Sheriff, R. E., 1979. Complex seismic trace analysis, Geophysics 44, 1041-1063.
Akbar, N., Dvorkin, J., and Nur, A. 1993. Relating P-wave Attenuation to Permeability, Geophysics, 58, 20-29.

Affiliated with

Also associated with

Rating

System and method of predicting reservoir properties does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method of predicting reservoir properties, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method of predicting reservoir properties will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2146473