Method for determining the characteristic parameters of each stimulated stage in a multi-stage fractured horizontal well in unconventional oil and gas reservoirs
A technology for determining parameters and horizontal wells, which is applied in data classification, earthwork drilling and production, wellbore/well components, etc. It can solve the problems of low horizontal positioning resolution, limited interpretation parameters, and high operating costs in downhole monitoring, and solve the test cost Expensive, accurate interpretation of results, low-cost effects
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[0046] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0047] like Figure 1-11 As shown, taking an unconventional tight gas reservoir in the Ordos Basin, a multi-stage fracturing horizontal well (H1 well) was selected as an example. The well has a total of 7 stages of fracturing stimulation and was officially put into production on August 9, 2018. The reservoir The medium depth is 2676.77m, and the depth of the test instrument is 2200m. A method for determining characteristic parameters of each stimulated segment of a multi-stage fractured horizontal well in an unconventional oil and gas reservoir, comprising the following steps:
[0048] S1: Collect and organize the basic information of multi-stage fractured horizontal wells and reservoirs in the unconventional oil and gas reservoir, as shown in Table 1:
[0049] Table 1. Well logging data and reservoir basic information of Well H1
[0050]
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