External casing packer simulation test device

Abstract

The invention provides an external casing packer simulation test device. The external casing packer simulation test device comprises a well temperature simulation device, a simulation well hole, a test control system, a pressure testing pump, an external casing packer, a pressure sensor and a temperature sensor, wherein the well temperature simulation device simulates the heating of a well hole, the test control system conducts test data collection, the pressure testing pump is used for the setting of the external casing packer, the pressure sensor collects pressure signals, and the temperature conducts the collection of temperature signals. The external casing packer simulation test device overcomes the problems that the performance of the external casing packer is unknown due to the fact that currently a special external casing packer simulation test device is not available, and thus well cementation concrete enters an oil layer to pollute the oil layer due to the fact that the external casing packer can not work normally. The external casing packer simulation test device has the advantages that the well diameter situation in which the outer casing packer works is conformed, under well temperature field situation can be simulated, the performance index of the external casing packer can be effectively detected, a test process is simple and reliable, and the external casing packer simulation test device is also applicable for the detection and test to other under well tools.

Description

technical field [0001] The invention relates to a downhole well completion tool test device in the petroleum industry, in particular to a simulation test device for an external packer. Background technique [0002] The outer pipe packer is the core tool of the screen completion process. Its main function is to isolate the oil layer. During the cementing process, it prevents cement from entering the oil layer to pollute the oil layer and seal the water layer in the oil layer. Its performance is good or bad, directly Affect the effect of well completion construction. In field application, if it does not work normally in the downhole, the cement will leak into the oil layer and cause oil layer pollution. What is more serious is that the cement is poured into the screen, and the cement needs to be drilled and re-perforated, which increases the drilling time and cost. The cost does not affect the productivity of horizontal wells, causing huge losses to single well production. A...

AI Technical Summary

Problems solved by technology

In field application, if it does not work normally in the downhole, the cement will leak into the oil layer and cause oil layer pollution. What is more serious is that the cement is poured into the screen, and the cement needs to be drilled and re-perforated, which increases the drilling time and cost. costs and affect the productivity of horizontal wells, causing huge losses to single well production

At present, the detection methods for the external packer are limited, and there are few detection indicators. At present, only the opening valve and closing valve pressure of the packer and the burst pressure of the rubber cartridge can be tested. There is no special external packer simulation test device. Out-of-pipe packer performance cannot be truly detected

For this reason, we have invented a new simulation test device for external packers, which can truly and effectively detect the real working performance of external packers, solve the lack of lack of testing links for external packers at present, and effectively guide the testing of external packers. Field Implementation of Packer

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