Method for predicting high steep structure stratum leakage velocity before drilling
A structure and pre-drilling technology, which is applied in the field of pre-drilling to predict the loss rate of high and steep structural formations, can solve problems such as the development of structural fractures, complex geological conditions, restrictions, etc., and achieve the effect of preventing malignant loss
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[0036] Such as figure 1 As shown, the method for predicting the loss rate of high and steep structural strata before drilling includes the following steps:
[0037] (1) Analysis of geological structure characteristics
[0038] Starting from the regional structure where the block is located, research and analyze the regional structural location, structural evolution history, and structural characteristics of the basin to obtain the geological structure characteristics of the block, and combine the analysis results of structural evolution to obtain the structural fractures in the target area The formation of the main tectonic period obtains the shape of the geological structure of the target area before and after the main tectonic period; among them, the geological structure characteristics of the block include the structure type, stratum composition, lithology, trend and the depth structure map of each group of strata in the block.
[0039] (2) Finite element simulation of pal...
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