SU1467178A1 - Device for registering hole direction - Google Patents

Abstract

The invention relates to mining and is intended to determine the direction of wells. The purpose of the invention is to improve the accuracy of surveying the wells. On . the housing (K) 1 in the form of a hollow tube is placed the goniometer 2, the expansion mechanism (M) 3 with the sleeve 12, the near and far along the / UX / X / X relative to M 3 centering elements (E) 4 in the form of pushers 6 and ski 5. Pivotally connected E 4 with movable 8 and fixed 9 rings. Rings 8 are rigidly connected by a pull 10 placed on the surface of K I between 34, the closest of which is connected to M 3 and is mounted with the ability to move along K 1. To create a baseline 20, a fixed, transparent sight mark 13 is installed in K 1, the center of which is aligned with the main axis device 2; When moving along K 1, the sleeve 12, the near E 4 and ti 10, the pushers 6 of the far E 4 press the skis 5 to the borehole wall 18. The reaction of the ring 9 is transmitted to the sleeve 12, the impossibility of repositioning which indicates that the skis 5 4 to the wall of the well 18 and fixing the device. The offset of the center of the illuminated movable mark 19 relative to the direction 20 of the device 2 determines the curvature of the well 18 along the entire length. 3 il. S oe "h 00 18 ig. /

Description

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FIELD OF THE INVENTION The invention relates to mining, in particular to media shooting

well control, mainly in underground conditions, and can be used in open works when surveying exploration and production wells.

The purpose of the invention is to improve the accuracy of shooting the direction of the wells,

Fig. 1 shows a device for capturing a direction mounted in a well, a general view} in Fig. 2: a device, a longitudinal frame in Fig. 3, a section A-A in Fig. 2,

The device for surveying the direction of the wells contains a pipe-shaped body 1, on which an angular device 2 is placed, a spacer mechanism 3, near and far in relation to the spacer mechanism 3 centering elements 4 consisting of supporting skis 5 and pushers b, c. With the help of which, the centering elements are connected with 4 fingers 7 to the movable rings 8 and the fixed ring 9, the pushers 6 are pivotally connected to the flap 5, the two movable rings 8 are rigidly connected to each other by a hard 10 these cases 1 between the centrifugal elements 4. The asymmetric mechanism 3 consists of a fixed 11 and a movable 12 bushings. Inside the sleeve P, a thread is made, which with a thread “made from the outside of sleeve 12, forms a threaded connection. Expansion fur-. The terminal 3, by means of a sleeve 12, rigidly connected with the movable ring 8 or made integral with it, is connected with the near centering element 4, which is mounted to move body lie I,

In case 1, at one of its ends, there is a fixed 13 on the sight mark 13, the center of which is aligned with the main axis of the goniometric device 2 and the axis of the case 1; At the other end of the case 1, the sleeve 14 is fixedly mounted to the floor 2 -; with to the housing 1; The sleeve 14 has an annular support lug 15, which is an abutment for the sleeve 1I of the spacer mechanism 3. In the angle meter 2 there is a visual field: ba 16, on which level 17 is fixed;

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The device works as follows.

Initially, a movable target mark 19 is placed in the well 18, on which a measuring scale is executed. A device for surveying the direction of the wells is then installed in the well 18. The centering and fixing device in the well 18 is as follows. When the sleeve 11 rotates, the sleeve 12 slides along the body 1 and pushes the ring 8 near to the spacer mechanism 3 of the centering element 4, the Pushers 6 deflects from the body 1 and presses the supporting skis 5 to the borehole wall 18, since the other pushers 6 of this centering element 4 do not have supports, t, e, they are bonded to another movable ring 8, then the supporting skis 5 only casarts the walls of the borehole 18 and slides along it,

- Further rotation of the sleeve 11 causes the movement of the rod 10, which pushes the ring 8 of the far centering element 4. The movement of the sleeve 12, the near centering element 4 and the rod 10 takes place until the pushers 6 of the far centering element 4 presses the supporting skis 5 to the wall of the borehole 18, the reaction of the stationary ring 9, which is rigidly mounted on the housing 1 and hingedly fastened with the pushers 6 of the far centering element 4, prevents the further movement. The reaction of the stationary ring 9 through the pushers 6, the ring 8 and t Gu 10 is transmitted to sleeve 12, which gradually ceases to move along housing 1 due to the force arising when it stops in sleeve 11, and then sleeve 11 into the annular support lug 15 of sleeve 14, further successively transmitting force from the spacer mechanism 3 through rings 8, the pushers 6 and the th heading to ring 9 allow simultaneous centering and detaching of the device in the well 18. Simultaneous centering of the device occurs by installing the pushers 6 on the rings 8 and 9 at 120 ° angles between the axes of the pushers 6 tionary axis of the body 1,

Thus, the impossibility of further rotation of the sleeve 11 indicates the fixing of the device in

8. The main axis of the angle gauge 2 is aligned with the center of the transparent sighting mark 13, which allows you to create a base direction 20 when you align the sighting axis of the telescope 16 with the center of the mark 13. The shift of the center of this mark is measured along the well 18 (on the illuminated scale on the mark 19) using the telescope 1 6 relative to the base direction 20, created in the wellhead 18. In addition, each time the immersion depth of the mark 19 is measured. Vertical measuring wheel of the goniometric device 2 is combined (theodolite T-30) with a vertical plane passing through the base direction 20 For this circle, using the level 17, the angle of incidence of the base load 20 from the horizontal plane is measured. The vertical measuring wheel of the angle meter 2 is aligned with the plane of incidence of the base direction 20, and the angle between the base direction 20 and the direction of the sighting axis of the telescope 16 is measured on a plumb fixed in the reference frame (not shown). After the measurements are made, the azimuth of the base direction 20 is determined. The direction of the well 18 is determined taking into account the measured deviations.

Reliable fixing of the device in the borehole regardless of its measurement

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diameter by placing gi on the outer surface of the housing between the centering elements and the possibility of obtaining basic n-direction by installing a transparent sighting mark in the case, they improve the accuracy of shooting the direction of the wells.

Claims (1)

Claims. A device for surveying the direction of the wells, comprising a pipe-shaped housing on which the goniometer, the expansion mechanism, the stationary ring, the movable rings rigidly connected between each other, and the near and far in relation to the spacer mechanism, are located; articulated with fixed and movable rings, characterized in that, in order to improve the accuracy of the shooting direction of the wells, it is provided with a transparent target mark fixed in the housing, the center of which is aligned with the main axis of the goniometric device and the axis of the body, tons of ha, are placed on the outer surface of the body between the centering elements, and the expansion mechanism is St. It is connected with a near centering element which is mounted for movement along the body. BUT.. - S 6 /////// f  s5F: r 5 one Phie. Z Phie.