Method, device and equipment for predicting lithology in target area, medium and product
By training a target well velocity curve prediction model and a virtual well simulated velocity curve, combined with an inversion algorithm, the problem of low lithology prediction accuracy caused by the lack of actual well velocity curves was solved, and more accurate lithology prediction was achieved.
CN122194333APending Publication Date: 2026-06-12CHINA NAT PETROLEUM CORP +1
0 Cites 0 Cited by
Patent Information
- Application Number
- CN202411827472.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2026-06-12
AI Technical Summary
Technical Problem
In oil and gas exploration, due to the lack of actual well velocity curves, existing technologies are unable to effectively improve the accuracy of lithology prediction.
Method used
By acquiring seismic data from the target area, the study area, and known well logging data, an initial well velocity curve prediction model is trained, a target well velocity curve prediction model is generated, and lithological prediction results are determined based on virtual well simulation velocity curves and inversion algorithms.
Benefits of technology
It improves the accuracy of lithology prediction and ensures that lithology distribution can still be accurately predicted even in the absence of actual well velocity curves.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a lithology prediction method and device in a target area, equipment, a medium and a product. The method comprises the following steps: acquiring seismic data in a target area, seismic data in a research area and well logging data of a known well, and training an initial well speed curve prediction model according to the seismic data in the research area and the well logging data of the known well to obtain a target well speed curve prediction model; determining a plurality of virtual well simulation speed curves according to the seismic data in the target area; inputting the simulated speed curve of each virtual well into the target well speed curve prediction model to obtain an actual speed curve of each virtual well; and based on an inversion algorithm, according to the actual speed curve of each virtual well and the seismic data in the target area, determining a lithology prediction result in the target area, and through the technical scheme of the invention, lithology prediction precision can be improved.
Need to check novelty before this filing date? Find Prior Art