Multifunctional while-drilling engineering parameter measuring system and measuring method

Abstract

The invention belongs to the technical field of measurement while drilling, and particularly relates to a multifunctional measurement device for engineering parameters while drilling. The measuring device comprises an engineering parameter measuring unit, a working posture and orientation measuring unit, a mechanical steel collar structure and an upper computer, the engineering parameter measuring unit and the working posture and orientation measuring unit are installed in the mechanical steel collar structure, and the upper computer is in control connection with the engineering parameter measuring unit and the working posture and orientation measuring unit. The device provided by the invention is a highly integrated multifunctional while-drilling engineering parameter measuring device, the attitude and orientation of the instrument, the borehole diameter, the formation resistivity, the pressure and the vibration information can be completely obtained through one-time well descending, and powerful support is provided for ground engineering calculation and while-drilling instrument error correction. The device is provided with a plurality of peripheral interfaces and an independent power supply system, each module is flexible to assemble, the whole instrument can work, the required modules can also work independently, meanwhile, other logging equipment can be hung and connected, and the device has high universality and flexibility.

Description

technical field [0001] The invention belongs to the technical field of measurement-while-drilling, in particular to a multifunctional measurement system and method for engineering parameters while drilling. Background technique [0002] The existing engineering parameter measurement while drilling only measures the acceleration, magnetic flux, inertia and other information that can analyze the attitude and orientation of the instrument, and does not have the information of borehole diameter, resistivity, pressure and vibration. Even if there is measurement, it is a single information, and there is no A complete set of devices can completely measure engineering parameters. [0003] Conventional engineering parameter measurement while drilling is only for directional drilling, it can only measure the attitude and orientation information of the instrument, it fails to combine the measurement of all engineering parameters organically, and there is no effective means to monitor t...

AI Technical Summary

Problems solved by technology

[0004] At present, the parameters measured by the engineering parameter measurement instruments while drilling on the market are single, and they are either divided into multiple downhole tests or multiple engineering parameter measurement instruments are connected together to go downhole. This not only increases the length of the drilling instrument, but also makes the entire instrument The communication protocol is complex

The power supply system needs multiple conversions, which increases the failure rate and interference. Due to the limitations of different instrument power supply systems and differences in communication protocols, multiple downhole tests will undoubtedly increase costs and risks. Currently, there is no complete set of well logging for measuring all engineering parameters. Therefore, it is urgent to develop a measurement-while-drilling device that combines the conventional attitude and orientation measurement system MWD with the measurement of engineering parameters required by geological engineering and logging-while-drilling such as borehole diameter, resistivity, pressure and vibration.

Images