A three-axis wireless MWD inclinometer calibration stand

Abstract

The invention relates to a triaxial wireless inclinometer verification rack and use method for the same. The technical scheme of the triaxial wireless inclinometer verification rack and use method for the same are that a hole drift angle adjusting rack is installed on an azimuth angle adjusting base seat; a tool surface angle adjusting clamping device is installed on the hole drift angle adjusting rack via a connection rack; the triaxial wireless inclinometer verification rack can freely rotate within the azimuth angle, the hole drift angle and the tool surface angle; the azimuth angle, the hole drift angle and the tool surface angle are correspondingly connected with a non-magnetic optical-electricity encoder; turn angles of each axial are fed back to a computer via the non-magnetic optical-electricity encoder; and a conductive slide ring is installed on each axial to ensure each axial to transmit non-magnetic optical-electricity encoder data during rotation in each directions. The beneficial effects are that the triaxial wireless inclinometer verification rack is designed in a modularized way, so the whole structure is simple and easy to operate; the base seat is in a split structure, thereby facilitating installation; and azimuth angle changes can be automatically acquired through connections between the azimuth angle, the hole drift angle and the tool surface angle and corresponding non-magnetic optical-electricity encoders.

Description

technical field [0001] The invention relates to a calibration support for a wireless inclinometer while drilling, in particular to a calibration support for a three-axis wireless inclinometer while drilling and a use method thereof. Background technique [0002] The wireless inclinometer while drilling is an essential measuring instrument in the construction of directional wells and horizontal wells. It measures parameters such as the inclination angle, azimuth angle and tool face angle at the bottom of the well through sensors, and transmits the measured data in real time by wireless transmission. To the surface, by adjusting the wellbore trajectory in time to ensure that the drill bit drills in the direction designed by the wellbore trajectory and successfully reaches the target layer. [0003] At present, during the use of the wireless inclinometer while drilling, as time goes by and the number of downholes increases, the performance of the devices and electronic circuits...

AI Technical Summary

Problems solved by technology

[0003] At present, during the use of the wireless inclinometer while drilling, as time goes by and the number of downholes increases, the performance of the devices and electronic circuits in the instrument will change, making the measurement accuracy of the wireless inclinometer while drilling worse, which in turn affects Construction quality of directional construction

The three-axis wireless inclinometer calibration stand must be used regularly to calibrate the inclinometer. The adjustment accuracy of the calibration stand will directly affect the accuracy of the instrument. At the same time, the efficiency of batch inclinometer calibration is low and the calibration quality is high less than guaranteed

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