SU717537A1 - Device for testing measuring instrument mainly inclinometer - Google Patents

Description

(54) DEVICE FOR VERIFICATION OF MEASURING INSTRUMENT, PREFERRINGLY INCLINOMETER

The invention relates to measuring equipment and is intended to check borehole tools: nklinometers in useful and stationary conditions ..,

Known installation table CI-2 for calibration of inclinometers, containing a fixed part consisting of a column mounted on a stand with three adjustment screws for mounting the column in; the vertical position, and the movable table part, having two mutually perpendicular rotation axes, horizontal and vertical7, which serve to define zenith

and azimuth angles. For the installation of inclinoglet in the moving part of the cTOJta, a clamp 1 is provided. /

The ASI-2 table has a considerable size and weight, is a stationary installation and is not suitable for operational monitoring of the inclinometers in field conditions 11X4 4 by lowering the inclinometer JB well after lifting the well).

Test stands for measuring instruments that determine the angles of rotation 2, 3 are also known.

The closest to the proposed device is a device for aligning measuring instruments with magnetized arrows, containing a turntable for installing a device to be tested, an optical unit and a source of an artificial magnetic field - a solenoid, located: e coaxially with the calibrated instrument; in the earth's magnetic field .4.

In this device, the source of the artificial magnetic field (solenoid) is located so that its field coincides with the direction of the Earth’s magnetic field. Therefore, when using this device to calibrate the azimuthal angles of inclinometers, it is necessary to have a complex device to rotate the inclinometer, which complicates the use of the device in field conditions.

The purpose of the invention is to provide calibration of inclinometers in field conditions.

This is achieved by the fact that, in the device containing the device for installing the inclinometer, the source of the artificial magnetic field

0 and instrument for eadani and determination

1, YNI:; perpendicular rotational axes, one of HfO-ftSEibix (G) (B) Tick YNaT B1OrN g - g1y; The pendulum axis of the yn of the klinometer, and coaxially with. The Dipoln Göllrö mobile ring with compensating magnets is installed with this ring. Both of these movable rings are located coaxially with a fixed ring, supplied with an azimuth scale, mounted on the axes of the collet fighter, inserted into the fixture for setting AND of the inclinometer. These rings KY 1 compensate for the horizontal component of the Earth’s magnetic field to exclude its effect on the artificial magnetic field and ensure the calibration of the Inverter Uychmüter without prior orientation in the northern direction of the magnetic meridian. - l g -:; - - FIG. 1 shows the proposed device; .on FIG. 2, the same, view A. In FIG. 1; in fig. 3 the same, - -. 6-B in FIG. 2, v;, ..-..., -v:

The device for checking inclinometers. Contains the installation device; consisting of collet chuck 1 (on chisel .. 2 collet chuck is shown in the vertical position) and legs 2, MShSh & tltl 3 with counterweights 4, mounted on the axis of the collet chuck 1, with a BHJi Hoe ring 5 with a fixed reference mark on it with compass b, urbanization 7 and two compensation magnets 8. The 9 azimuth scale of the JSjöstPjfHHorci magnetic field is located on the four-way, ring 3. On the ring 5, coaxially with HHMV 5, we have a 10x2: mind magnets 11- that create an artificial field intended for calibration of the azimuth readings. Tkaza / golem 13 d th W z rodeleny yennogo goda s and locking screw 14. The scale 12 is attached to the collet 6 m of patrna 1, and the pointer 13 is on the fixed Ring 3..

. The device works as follows. The collet chuck 1 with ystJan6v .. lanky, fixed 3 on it and movable 5 and 10 rings, is fixed on the inclinometer so that the sensor of the azimuth angle of the inclinometer, for example, magnetic needle / ferrosonde, etc., is in the center of the collar the cartridge, i.e., the zone of an artificial magnetic poly.

The inclinometer with the help of the legs 2 is installed with the required zenith angle (4 ° 4-), the value of which is measured on a scale of 12. PB level 7 Shbёr ё1Ес pachoJojenie rings 3,5, 10 in the horizontal direction.

the horizontal plane (i.e., check the axial axis, perpendicular axis of the inclinometer and verticality of the axis of rotation of the rings 5 and 10) and is fixed with a screw 14. With the removed magnets 8 and 11 along the orientation-compass of the movable ring; 5 to accurately compensate for the horizontal component of the Zempi magnetic field. After installing the magnets, 8, their field is equal in magnitude and opposite to the horizontal horizon of the earth's field. By rotating the movable ring 10 with magnets 11, the azimuth of the artificial magnetic field is set. The magnitude of the Etbgo azimuth is read from the scale.

9-:---- ....-.-.-.

In the proposed device for checking inclinometers, there is no secondary and hard mechanism for changing the spatial location of the inclinometer, and changing its asymmetry is performed by rotating the ring with stationary magnets (or solenoids), significantly reducing the weight and dimensions of the device, and the creation of a device with a magnetic magnet (or solenoids) significantly reduces the weight and dimensions of the device, and the creation of a device with a magnetic magnet (or solenoids) is reduced; allowing the verification of inclinometers under field conditions; The presence of a drilling ring with compensation magnets eliminates the magnetic field and allows the instruments to be turned at any time. Initial installation of the inclinometer without prior orientation of the northern direction of the magnetic meridian. Using a portable installation reduces the cost of geophysical well testing (measurement of the curvature of the wells), because the accuracy of the measurement results as a result of the operational monitoring of the inclinometer operation before operating and after lifting from the well is beaten .

Claims (1)

Invention Formula . A device for calibration of a measuring device, mainly an inclinometer, containing a device for its urting, a source of an artificial magnetic field, and an instrument for setting and determining zenith and azimuth angles with a fixed ring, distinguish it: u-gQc in order to ensure the calibration of inclinometers in field conditions The source of an artificial magnetic field is installed on a mobile ring inserted into the device, equipped with a reference-alignment and having two mutually perpendicular rotation axes, one of which Vertical,, second - perpen