Wellbore scaling trend prediction method and device

Abstract

The invention provides a method and device for predicting the fouling trend of a wellbore, including: determining the continuous matrix porosity data of the reservoir section of the well to be measured; determining the well to be measured according to the corresponding relationship between the porosity data and the permeability data Corresponding matrix permeability data; determine the longitudinal fracture development data of the reservoir section of the well to be measured; determine the phase section corresponding to the reservoir of the well to be measured according to the matrix permeability data and the longitudinal fracture development data; according to the reservoir of the well to be measured To determine the scaling trend of the well to be logged. The method for predicting the fouling tendency of the wellbore provided by the invention is used to predict the fouling tendency of the wellbore.

Description

Technical field [0001] The present invention relates to the field of petroleum mining, and more particularly to a wellbore scaling trend prediction method and apparatus. Background technique [0002] During the production of petroleum production, the deep original formation pressure greater than 60 MPa in the production phase, that is, crack-resistant sandstone high-pressure oil wells, has become an important production area in the field of gas field mining. However, the crack-resistant sandstone high-pressure oil and gas well in the production process is increasingly common, and severely affects stable production. [0003] In the existing technology, the type and degree of wellbore scaling in the crack-resistant sandstone high-pressure oil well cannot be predicted. Further, it is difficult to increase the difficulty in preventing fouling processes in the oil and gas well completion stage, and it is difficult to achieve precision anti-scaling. The waste of funds, even greatly aff...

AI Technical Summary

Problems solved by technology

However, the wellbore fouling phenomenon in the fractured sandstone high-pressure oil and gas well is more and more common during the production process, which seriously affects the stable production.

[0003] In the existing technology, it is still impossible to predict the type and degree of wellbore scaling of fractured sandstone high-pressure oil and gas wells, which makes it more difficult to adopt suitable anti-scaling technology in the completion stage of oil and gas wells, and it is difficult to achieve precise anti-scaling, resulting in Waste of funds, even greatly affects the long-term stable production of oil and gas wells, restricting the efficient development of oil and gas reservoirs

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