Method for predicting brittleness of compact oil reservoir
A technology for tight oil and reservoirs, which is applied in seismology, measurement devices, and geophysical measurements for logging records, and can solve problems such as disputes over the accurate definition and prediction of brittleness and the need for further development.
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[0035] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0036] Such as figure 1 As shown, the present invention combines the SCA+DEM equivalent medium model to construct a petrophysical model. According to the constructed petrophysical model, we have established a brittle rock with seismic properties affected by porosity, fracture content, fracture aspect ratio and mineral composition. A physical model for brittle prediction of tight oil reservoirs.
[0037] In the invention, the core sample experiment is firstly analyzed, and the mineral composition of the reservoir, the relationship between porosity and mineral components, and the relationship between porosity and longitudinal and transverse wave velocity are analyzed according to the results of in...
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