SU819316A1 - Device for feeding logging tool into well - Google Patents

Description

(54) DEVICE FOR SUBMITTING CARTAIN WELLS TO THE WELL

I

The invention relates to geophysical surveys in wells drilled from underground mines, and can be used to measure the depths of wells and deliver various instruments to them.

A wellbore self-propeller is known, which includes a rod with a working stroke spring and a slide, on which there are two blocks with a cable and two proppant legs connected by a return cable 1. Under certain conditions, the device can deliver devices to horizontal, weakly inclined and ascending wells. 3ia by alternating tension and lowering the cable.

A device for feeding a logging well in a well, comprising a guide tube, a winch and a transport rod with a clamping unit 2, is known.

This device is capable of lifting the projectile only in downhole wells with a large angle of inclination to the horizon using a lifting winch.

The purpose of the invention is to increase the reliability and simplify the process of feeding the projectile to weakly inclined, horizontal and ascending wells.

The goal is achieved by the fact that the device is equipped with spacer telescopic rods, on which a winch is installed, and the clamping unit is designed as a cross with two clamping cheeks, one of which is rigidly connected to the crosspiece, and the other is designed as a hinged lever on the crosspiece , with telescopic

rods are connected to the crosshairs pivotally. The locking unit can be made in the form of a glass with a spring-loaded spacer rod, placed on the cross from the side of the lever opposite to the clamping rods.

The guide tube may have an outlet cone connected to the crosspiece.

FIG. 1 shows the installation of the device in the mine workings and in the well with

Claims (2)

the relative position of its nodes; in fig. 2 - cross, top view; in fig. 3 - the same, side view; in fig. 4 - the proposed device, front view; on fng. 5 - the same, side view. The device contains a guide tube 1, terminating in an outlet conical pipe 2, to which the crosspiece 3 is fastened with a clamping unit of transport shchtang 4 located on it. The clamping unit is located on the crosspiece and is made with two clamping cheeks: mobile 5 and rigidly fixed stationary 6. Mobile cheek 5 the clamping device is made in the form of a lever fixed on the crosspiece with the help of the joint 7, against which the rod 8 rests, spring-loaded 9. The spring 9 and the expansion rod 8 are in the glass 10, which is supported with crosspiece. A hand winch 12 with a ratchet device is attached to the telescopic arms 3 connected to the crosspiece 3. The winch can be moved along the expansion barbells and secured in the desired position. At the end of the cable 13 of the lifting winch, a support cup 14 is attached, into which the transport rods 4 are inserted during lifting and lowering. During operation, the guide tube 1 is inserted into the borehole 15 and, by means of telescopic spacers 11, the device cleaves in the mine work 16. Manual the winch 12 is mounted on the telescopic expansion bar in a position that is convenient for operation. The cable 13 of the lifting winch with the supporting cup 14 fixed on its end is thrown through block 17. A logging tool 18 with cable 19 is connected to the transport bar 4 and is sent to the well 15. The transport bar passes between the moving and stationary cheeks of the locking device located on the cross-piece 3 . A supporting cup 14 is put on the free end of this bar. When winding the lifting cable 13 onto the winch drum, a projecter is raised. At this time, the movable clamping jaw 5, secured in the slot of the cross 3, occupies the position shown in FIG. 2 dotted lines. The transport rod 4 is clamped between the movable cheek 5 and the fixed cheek 6 by means of a spring-loaded rod 8 located in the glass 10. When the projectile is finished, the propeller is lowered to the length of the transport rod by reverse rotation of the lifting winch handle. At this time, by means of the spring 9, the spacer rod 8 lifts the movable clamping jaw 5 (in Fig. 3 this position is shown by flat lines), which presses the rod 4 to the fixed cheek 6 and wedges it between the clamping cheeks. The working body of the movable cheek in the place of its contact with the yttanga is made around a circle whose center is somewhat offset from the axis of the movable cheek. This allows, with a greater load, to increase the clamping force of the cheeks to the bar. When unwinding from a reel -. The cable 13 is removed from the end of the rod, the supporting cup 14, and the next pole is built up. The process then repeats. The projectile is lowered in the reverse order. To remove the clamping forces, the cheeks with a manual winch raise the projectile somewhat, pulling the strain relief cable 20, which allows the moving clamping cheek to be placed in the position shown in FIG. 3 dotted line. The released gear is lowered on the winch to the length of the protractor bar. To stop and secure the projectile, the cable 20 is released from the tension and the movable cheek presses the shank against the fixed cheek. Then, the support cup 14 is removed, the shank 4 is unscrewed, the cable 13 is wound on the drum, the winch, and the operation is repeated. The crosspiece with the locking device of the rods reliably protects workers from possible blows from spilling rock from the walls of the wells. Claim 1. A device for feeding a logging projectile into a well, containing a guide pipe, a winch and a transport rod with a clamping unit, characterized in that, in order to increase the reliability and simplify the process of feeding the projectile to a slightly inclined, horizontal and ascending wells, it is equipped with spacers telescopic shtanga on which the winch is installed, and the clamping unit is made in the form of a cross with two clamping cheeks, one of which is rigidly connected to the crosspiece, and the other is made in the form of a lever mounted on the crossbar with a locking unit, and the telescopic shtangi are connected to the crosspiece in a hinged manner. 2. The device according to claim 1, characterized in that the locking assembly is made in the form of a glass with a spring-loaded spreading spout located on the cross from the lever opposite the shtang clamp. 3. A device according to claim 1, characterized in that the guide tube has an outlet cone pipe connected to the crosspiece. Sources of information taken into account during the examination 1. USSR author's certificate number 397633, cl. , E 2ГВ 47/00, 13.10.71. 2. USSR author's certificate number 183686, cl. E 21 B 47/01, 07.11.64 (prototype).  BUT .- 7 / . L winch .З