SU705260A1 - Device for checking-up space position of deep-well instruments - Google Patents

Description

one,

 The invention relates to the field of geophysical surveys of the well {and is intended for the calibration of angle angle tools, such as inclinometers ,; oricatatbrbyG

Known installation table ASI-2 1 contains the fixed and fixed parts. The fixed part (trigger) consists of a column mounted on a stand with adjusting screws. Horizontal and vertical limbs and a plate are installed on the sub-upper part of the table, in which a hole is provided for the installation of the orienting device. In order to install the device being turned on, a clamp is provided in the table, which is made in the form of two dies.

Known installation table cannot provide TOMHJTO calibration and calibration of instruments. This is due to the fact that this table design does not provide for the use of and verification of the parallelism and stability of the vertical axis of the instrument to be tested and the vertical axis of the installation table. In addition, the installation of angles on this table is carried out over the limbs, the turning accuracy

which depends on the wear parts of its turning parts. The use of compass for azfucking does not provide the necessary accuracy and stability in readings.

The aim of the invention is to improve the accuracy of calibration and calibration of downhole tools.

The goal is achieved by the fact that the proposed device is equipped with a movable sleeve of the optical system mounted on the horizontal axis of the turntable, and the ignition device has a hinged connection with a horizontal axis of rotation.

FIG. 1 shows a general view of the described device; in fig. 2 - setting the optical system to a constant starting point of the azimuth.

 The device comprises a stationary part 1 with installation points 1 and 2 and a movable part made in the form of a rotary pen 3, on the horizontal axis 4 of which is mounted a movable sleeve 5 with a board and an optical system 6, and a clamping device 7 with a hinge 8 for pag mounting. er with Moro appliance. The rotation of the horizontal and vertical axes is carried out using the steering wheels 9 and 10. The positions of the turned-on instrument are fixed by stoppers 11, 12, 13, the optical system 6 of the device is oriented azimuthally by means of the movable screen 14, on which the starting point of the azimuth is plotted, and the visual pipes 15. The starting point of the reference azimuth is found by the geodesic method. - Adjustment of the alignment of the vertical axis of the optical system 6 and the vertical axis of the rotary column 3 on the orientation mark 16 is carried out using a movable sleeve 5, having the ability to move both around its axis and in the axial direction, and set screws, 2, thus so that when rotating the optical system of the optical system 6 and the rotary column 3, the image of the reference mark 16 does not shift from the center of the grid. The parallelism of the vertical axis of the turned-on device installed in the clamping device 7 and the vertical axis of the rotary column 3 is adjusted with the help of the joint 8 along. the plummet or level installed during the adjustment process in the clamping device 7. The vertical axes of the instrument to be turned and the turntable 3 are adjusted in relation to the vertical axis of the optical system 6 in the same vertical plane with the help of three marks installed during the adjustment in the clamping device , at the installation site of the optical system, and the optical system 6 itself, mounted on a tripod. The device operates as follows. The adjustment is made according to the above, the scanned device is installed in the clamping device 7 of the installation and the initial readings of the angle reading are taken along the vertical and horizontal scales of the optical system microscope 6. To check the zenith angle, turn the handwheel 9 to a predetermined angle and fix it with a stop. The horizontal position is shown in ctporo and a reading is taken on the vertical scale of the microscope. The difference in measurement readings will give the zenith angle. To check the azimuth, unclip sleeve 5 with the optical system 6 installed by it and turn it to its original position. The vertical axis of the optical system 6 is set at the reference point 16, the sleeve 5 is fixed with a stopper 12, and the optical axis of the viewing tube 15 is set at the azimuth point of the screen 14. The readings of the reading are taken on the horizontal scale of the microscope of the optical system 6. The difference in measurements will give an azimuth angle. Formula of the invention A device for calibrating the spatial position of downhole tools, comprising a trigger, a rotary column with vertical and horizontal axes, a board for an orienting device, handwheels, stops and a clamping device, characterized in that, in order to improve accuracy, the clamping device is attached to the end horizontal axis through the hinge, and on the axis itself is mounted a movable sleeve, made with the possibility of longitudinal displacements along its axis of rotation. Sources of information taken into account in the examination 1. Description (passport) of the installation table URI-2 (TU-39-012-73), developed by the Caucasian branch of the VNIIneftepromgeofizika, Ministry of Petroleum Industry, 11.02.75.

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