A method for predicting the development intensity of horizontal fractures in shale formations
By combining seismic, well logging, and drilling information, and utilizing the ratio of seismic wave to well logging sonic velocity and the seismic inversion method, the problem of predicting the development intensity of horizontal fractures in shale formations has been solved, achieving rapid and accurate distribution prediction and supporting shale formation evaluation and sweet spot identification.
CN115808720BActive Publication Date: 2026-07-21CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2021-09-13
- Publication Date
- 2026-07-21
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Figure CN115808720B_ABST
Abstract
The present application relates to the field of geophysical technology, disclose a kind of method for predicting the development intensity of horizontal fracture of shale layer, the ratio of the average propagation velocity of seismic wave of wellbore position shale layer and the average speed of wellbore position shale layer logging acoustic wave is used as the parameter for judging the development intensity of horizontal fracture of wellbore position shale layer, further process parameter by seismic inversion method and inverse distance weighting method, predict the planar distribution of the development intensity of horizontal fracture of shale layer in region.The present application can effectively utilize the information of seismic, logging, drilling and other aspects, quickly predict the development intensity of horizontal fracture of shale layer, can predict the planar distribution of the development intensity of horizontal fracture of shale layer, provide reference for the evaluation of shale formation, especially for shale sweet spot prediction, favorable area evaluation has good effect.
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