A method and device for determining the degree of karst development of a reservoir
A kind of development degree and karst technology, applied in the field of logging interpretation, can solve the problems of strong multi-solution, poor operability, and inability to meet the logging evaluation needs of weathering crust karst reservoirs, etc.
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Embodiment 1
[0038] Combine figure 2 As shown, the method for determining the degree of reservoir karst development proposed in this embodiment includes:
[0039] Step 21: Obtain logging data and geological logging data of the pending reservoir.
[0040] The logging data of the undetermined reservoir mainly includes the electrical imaging logging data of the target interval in the study area. It can also include other conventional logging data, geological data, logging data, core description and analysis and other related data to facilitate the analysis of karst development locations. And the stratum level for comprehensive discrimination.
[0041] Step 22: Generate electrical imaging logging image data with full borehole coverage.
[0042] Among them, through the preprocessing, static enhancement, dynamic enhancement, and full borehole image generation processing of the electrical imaging logging data, the full borehole coverage electrical imaging logging image data can be obtained. image 3 As ...
Embodiment 2
[0093] This embodiment provides a device for determining the degree of karst development in a reservoir, combining Figure 7 Shown, including:
[0094] The feature and parameter extraction unit 71 is used to extract vertical dissolution pores and fractures, horizontal dissolution pores and fractures, and logging feature parameters from electrical imaging logging image data of the reservoir to be determined;
[0095] The development degree division unit 72 is used to determine the karst facies zone to which the undetermined reservoir belongs and divide the degree of karst development according to the characteristics of vertical dissolution pores and fractures and horizontal dissolution pores and fractures and statistical logging characteristic parameters;
[0096] The development degree determination unit 73 is used to determine the effective reservoir development degree of the pending reservoir according to the division result of the karst facies belt and the karst development degree....
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