Inertia measuring unit and continuous inclinometer for dynamically tuned gyroscope

Abstract

The invention discloses an inertia measuring unit, which comprises a measuring short section frame, a first dynamically tuned gyroscope, a rotary mechanism frame, a second dynamically tuned gyroscope, a first accelerometer, a second accelerometer, a third accelerometer and a motor; the first dynamically tuned gyroscope is arranged on the measuring short section frame along the radial direction of the measuring short section frame; the second dynamically tuned gyroscope is arranged on the rotary mechanism frame along the axial direction of the rotary mechanism frame; the first accelerometer, the second accelerometer and the third accelerometer are orthogonally arranged on the axial direction of the rotary mechanism frame along the axial direction of the rotary mechanism frame in turn; the second dynamically tuned gyroscope is arranged between the first dynamically tuned gyroscope and the first accelerometer; the measuring short section frame and the rotary mechanism frame are coaxial; and the motor drives the rotary mechanism frame to rotate around the axis of the rotary mechanism frame. The inertia measuring unit and the continuous inclinometer for the dynamically tuned gyroscope of the invention realize all-round measurement and continuous measurement of well tracks and improve the measurement efficiency.

Description

technical field [0001] The invention belongs to the field of inertial measurement for oil fields, drilling and exploration, and in particular relates to an inertial measurement unit and a dynamic tuning gyro continuous inclinometer. Background technique [0002] In the initial stage of oil field development, due to the backward logging technology and the limitation of drilling and development technology, the actual running track of the drill pipe underground is not very clear. Moreover, during the development process, only the development of main reservoirs is emphasized, while the remote and adjacent complex reservoirs and thin reservoirs have not been effectively developed and are distributed in an uneven state. [0003] The remaining oil reservoirs have great potential, and if they are effectively developed while avoiding risks, it will promote the realization of the oil field's goal of increasing oil and production. In the case of increasingly depleted oil resources, ho...

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Problems solved by technology

[0006] At present, some units are developing fiber optic gyro inclinometers. Fiber optic gyro has good shock resistance, but it is very sensitive to temperature, and the accuracy of fiber optic gyro is proportional to its size. However, the temperature in the well is high, and the requirements for the outer diameter of the instrument are also very strict, so There is still a long way to go before the fiber optic gyro inclinometer will dominate in a certain period of time

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