Simulation test automatic control device for while-drilling gamma imager

Abstract

The invention relates to a simulation test automatic control device for a while-drilling gamma imager. The simulation test automatic control device comprises a sliding guide rail, a rotating driving device, a rotating measuring device, an extendable coupler, a data storage and display interface, a while-drilling gamma imaging body, a gamma imaging measuring module and a stratum simulating shaft, wherein the gamma imaging measuring module is mounted on the while-drilling gamma imaging body; the while-drilling gamma imaging body is connected with the rotating driving device through the extendable coupler and driven by the rotating driving device to rotate; the stratum simulating shaft and the while-drilling gamma imaging body are matched in a cross mode; and the gamma imaging measuring module is connected with the data storage and display interface through a signal wire. The simulation test automatic control device is suitable for simulating the situation that the gamma imager penetrates through stratums of different radioactivity strength under the sliding and rotating drilling states of the gamma imager, the lithological change of the drilled stratum is displayed in real time by processing measured data, and the basic and reliable detecting measure is provided for development, application and popularization of the gamma imager.

Description

technical field [0001] The invention relates to the field of logging instrument testing devices, in particular to a simulation device for ground testing of gamma imaging tools in the logging-while-drilling field. Background technique: [0002] With the increasingly poor quality of my country's oil and gas resources, prominent heterogeneity and anisotropy of oil and gas reservoirs, and the rapid development of unconventional oil and gas, it is required that logging technology be more accurate, detect farther, be more adaptable to complex well conditions, and be safer and more efficient. At the beginning of this century, the international advanced logging technology has been able to carry out formation imaging measurement, while the research on imaging while drilling technology in my country is still in the initial stage of research. At present, most of the imaging and logging equipment used while drilling rely on imports. The cost of introduction and service prices are high, ...

AI Technical Summary

Problems solved by technology

An important reason is that some research institutions only pay attention to the development of downhole instruments themselves, without supporting automatic control devices for ground simulation tests. The comprehensive performance tests of tools and instruments often use direct on-site field tests. This method is not only expensive, but also takes a long time. Once the tools and instruments are tested on site, problems often occur due to the lack of on-site data information, and the real cause of the problem cannot be found, which affects the research process and the speed of transformation from scientific research results to products, restricting domestic technological development in this field

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