Dynamic testing device suitable for drilling tool attitude measurement module

Patent metadata

Field	Value
Publication number	US-10746756-B2
Application number	US-201816133241-A
Country	US
Kind code	B2
Filing date	Sep 17, 2018
Priority date	Sep 21, 2017
Publication date	Aug 18, 2020
Grant date	Aug 18, 2020

Abstract

The disclosure relates to the field of drilling tool attitude measurement, and particularly to a dynamic testing device suitable for a drilling tool attitude measurement module. The dynamic testing device may comprise a test fixture for attitude measurement module, an azimuth rotation device for adjusting an azimuth angle, an inclination angle swing device for adjusting an inclination angle, and a toolface angle rotation device for driving the test fixture for attitude measurement module to rotate, and a rotation speed measurement device for measuring a rotation speed and a self-rotation angle of the test fixture for attitude measurement module in a rotating state. The testing device has characteristics of large bearing weight, high rotation speed which is measurable and controllable, convenient for mounting and fixing a tested module, etc. It can simulate conditions of downhole rotation of a drilling tool, and be used for dynamic testing of the attitude measurement module.

First claim

The invention claimed is:

1. A dynamic testing device suitable for a drilling tool attitude measurement module, comprising a test fixture for attitude measurement module, an azimuth rotation device, an inclination angle swing device, a toolface angle rotation device and a rotation speed measurement device, and wherein:
the azimuth rotation device is used for adjusting an azimuth angle;
the inclination angle swing device is configured to adjust an inclination angle, is mounted on the azimuth rotation device, and is rotatable with the azimuth rotation device, and an inclination angle swing plane and an azimuth rotation plane are perpendicular to each other;
the toolface angle rotation device is mounted on the inclination angle swing device, is able to swing together with the inclination angle swing device, and is used to drive the test fixture for attitude measurement module ( 22 ) to rotate;
the test fixture for attitude measurement module ( 22 ) is mounted on the toolface angle rotation device, and is able to rotate under the driving of the toolface angle rotation device; and
the rotation speed measurement device is mounted on the toolface angle rotation device for measuring a rotation speed and a rotation angle of the test fixture for attitude measurement module ( 22 ) in a rotating state;
wherein the azimuth rotation device adjusts the azimuth angle in a range from 0° to 360°; and comprises a fixed base ( 1 ), a first hand wheel ( 2 ), a worm gear box ( 3 ), a main rotation shaft ( 4 ), a horizontal rotation table ( 5 ), an azimuth dial ( 6 ), a first cursor ( 7 ) and two horizontal table locking devices ( 8 ), and wherein:
the first hand wheel ( 2 ) is mounted on the fixed base ( 1 ), and is connected to the worm gear box ( 3 ) through a transmission shaft, and the worm gear box ( 3 ) is connected to the horizontal rotation table ( 5 ) through the main rotation shaft ( 4 ) and a nut, and the horizontal rotation table ( 5 ) is in contact with the fixed base ( 1 ) through thrust bearings arranged circumferentially and evenly; and
the azimuth dial ( 6 ) is mounted on the horizontal rotation table ( 5 ), and the first cursor ( 7 ) is mounted on the fixed base ( 1 ), and the azimuth dial ( 6 ) and the first cursor ( 7 ) cooperate for reading the azimuth angle; and the two horizontal table locking devices ( 8 ) are respectively mounted on both ends of a diameter of the horizontal rotation table ( 5 ) for realizing a locking and fixing between the horizontal rotation table ( 5 ) and the fixed base ( 1 ).

2. The dynamic testing device of claim 1 , wherein the inclination angle swing device adjusts the inclination angle in a range from −90° to +90°, and comprises a vertical table ( 9 ), an auxiliary locking table ( 10 ), a swing arm ( 11 ), a swing arm rotation shaft ( 12 ), an inclination angle dial ( 13 ), a second cursor ( 14 ), a swing arm fine adjustment locking device ( 15 ) and a clasp-locking device ( 16 ), and wherein:
the vertical table ( 9 ) and the auxiliary locking table ( 10 ) each adopt a semi-circular structure, and are vertically mounted on the horizontal rotation table ( 5 ), and a mounting direction of the vertical table ( 9 ) and the auxiliary locking table ( 10 ) is parallel to a 0°-180° direction line on the azimuth dial ( 6 );
the swing arm ( 11 ) is connected to the vertical table ( 9 ) through the swing arm rotation shaft ( 12 ) and a bearing, and the swing arm rotation shaft ( 12 ) is fixedly locked to the auxiliary locking table ( 10 ) by a nut; gear teeth are machined on an outer circumference of the vertical table ( 9 ) for realizing continuous adjustment of the inclination angle of the swing arm based on gear meshing;
the inclination angle dial ( 13 ) is mounted on the vertical table ( 9 ), and the second cursor ( 14 ) is fixed on the swing arm ( 11 ), and the inclination angle dial ( 13 ) and the second cursor ( 14 ) cooperate to read the inclination angle; and
the swing arm ( 11 ) is able to be locked and fixed with the auxiliary locking table ( 10 ) by the clasp-locking device ( 16 ), so that the test fixture for attitude measurement module does not change the inclination angle during rotation; and the swing arm ( 11 ) is able to be locked and fixed with the vertical table through an effect of gear meshing of the swing arm fine adjustment locking device ( 15 ).

3. The dynamic testing device of claim 2 , wherein the swing arm fine adjustment locking device ( 15 ) is mounted on an upper end of the swing arm ( 11 ), and comprises a first gear ( 15 - 1 ), a second gear ( 15 - 2 ), a third gear ( 15 - 3 ), a second hand wheel ( 15 - 4 ), a first locking screw ( 15 - 5 ), a fixed plate ( 15 - 6 ), a lever ( 15 - 7 ), a lever rotation shaft ( 15 - 8 ) and an adjusting rotation shaft ( 15 - 9 );
a rotation shaft of the first gear ( 15 - 1 ) is connected to the second hand wheel ( 15 - 4 ), and the first gear ( 15 - 1 ) is meshed with the second gear ( 15 - 2 ), and the first gear ( 15 - 1 ) and the second gear ( 15 - 2 ) are respectively mounted to the fixed plate ( 15 - 6 ) through their respective rotation shafts; the fixed plate ( 15 - 6 ) is mounted to the swing arm ( 11 ) through a screw; the adjusting rotation shaft ( 15 - 9 ) of the third gear ( 15 - 3 ) is mounted in an oblong hole of the fixed plate ( 15 - 6 ), and the adjusting rotation shaft ( 15 - 9 ) is able to move within the oblong hole.

4. The dynamic testing device of claim 3 , wherein one end of the lever ( 15 - 7 ) is connected to the fixed plate ( 15 - 6 ) through the lever rotation shaft ( 15 - 8 ), and the other end thereof is in contact with the adjusting rotation shaft ( 15 - 9 ) of the third gear ( 15 - 3 ) through a fork-type structure, and the lever ( 15 - 7 ) is rotatable around the lever rotation shaft ( 15 - 8 ); the first locking screw ( 15 - 5 ) is mounted on the fixing plate ( 15 - 6 ), and one end of the first locking screw is in contact with the lever ( 15 - 7 ), and the first locking screw ( 15 - 5 ) can push the lever ( 15 - 7 ) to rotate about the lever rotation shaft ( 15 - 8 ), thereby pushing the adjusting rotation shaft ( 15 - 9 ) to move left and right.

5. The dynamic testing device of claim 4 , wherein when the adjusting rotation shaft ( 15 - 9 ) is located at an end of the oblong hole of the fixed plate ( 15 - 6 ) away from the second gear ( 15 - 2 ), teeth of the second gear ( 15 - 2 ) and the third gear ( 15 - 3 ) are disengaged from each other while the second gear ( 15 - 2 ) and the third gear ( 15 - 3 ) respectively mesh with the teeth on the circumference of the vertical table ( 9 ); when the second hand wheel ( 15 - 4 ) is rotated, the first gear ( 15 - 1 ) drives the second gear ( 15 - 2 ) to rotate, thereby driving the swing arm ( 11 ) to rotate around the swing arm rotation shaft ( 12 ), and the second gear ( 15 - 2 ) and the vertical table have a gear ratio of 25:1 to ensure that the swing arm ( 11 ) rotates relative to the vertical table when the second hand wheel ( 15 - 4 ) is rotated, thereby achieving fine angle adjustment.

6. The dynamic testing device of claim 4 , wherein when the first locking screw ( 15 - 5 ) is rotated, the first locking screw ( 15 - 5 ) pushes the lever ( 15 - 7 ) to rotate around the lever rotation shaft ( 15 - 8 ), and the lever rotation shaft ( 15 - 8 ) drives the adjusting rotation shaft ( 15 - 9 ) and the third gear ( 15 - 3 ) to translate; when the second gear ( 15 - 2 ) is reached, the teeth of the second gear ( 15 - 2 ) and the third gear ( 15 - 3 ) mesh with each other, and the second gear ( 15 - 2 ) and the third gear ( 15 - 3 ) cannot rotate in the same direction, thereby achieving fixation of the swing arm ( 11 ) with respect to the vertical table ( 9 ).

7. The dynamic testing device of claim 2 , wherein the toolface ang

Assignees

• Inst Geology & Geophysics Cas

Inventors

• Zhang Wenxiu
• Yang Yongyou
• Zheng Jian
• Sun Yuntao
• Di Qingyun
• Chen Wenxuan
• Yang Changchun

Classifications

• E21B7/00 Primary

  Special methods or apparatus for drilling · CPC title

• G01P3/486

  delivered by photo-electric detectors · CPC title

• E21B7/04

  Directional drilling · CPC title

• G01P3/00 Primary

  Measuring linear or angular speed; Measuring differences of linear or angular speeds (G01P5/00 - G01P11/00 take precedence; {direction and speed indication G01P13/045}; counting mechanisms G06M) · CPC title

• E21B44/00 Primary

  Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions · CPC title