SU917009A1 - Device for measuring tesioning of wire moving in well - Google Patents

Description

The invention relates to a measurement technique and can be used in the control and measuring equipment of lifting mechanisms, namely, to measure the tension of a moving cable wire in the study of oil, gas and water wells with autonomous depth gauges.

A device for measuring the tension of a moving rope, comprising two support rollers, a rigid frame, a tension assembly with a force sensor and a tension roller, and measuring equipment 1, is known.

The drawback of the device is the lack of freedom of horizontal movement of the force sensor. ,

Closest to the present invention is a device for measuring cable tension during hauling, comprising a housing with inlet and outlet blocks for guiding a cable connecting the cable to the winch and a tension value sensor, the inlet unit being mounted on the hinge part mounted in the swivel bracket an axis placed in a ball bearing and connected with the free end of the axis with the sensor pusher, and the output unit is fixed in another swivel bracket mounted coaxially with the first bracket 2.

The disadvantage of this device is that the angle between the measuring mechanism and the moving wire varies during the measurement process.

The purpose of the inventions is to improve the measurement accuracy. ten

This goal is achieved by the fact that in a device for measuring the tension of a wire moving in a well, the rigid frame is provided with restrictive

15 by means of rollers, by means of which it is installed in guides with the possibility of movement in a horizontal plane, perpendicular to the direction of movement of the wire.

20

The drawing shows a diagram of the proposed device.

The device comprises a rigid frame 1, a hydraulic sensor 2, movable supports 3, for example, in the form of rollers, restrictive rollers 4, guides 5 for moving the rigid frame with the sensor in a horizontal plane when winding wire

Claims (2)

30 winch drum from one side of the flange to the other and measured wire 6. When winding wire b, for example, when lifting a stand-alone device or unwinding it from the winch drum when the device is lowered into the well, rigid frame 1 with hydraulic sensor 2 moves with horizontal plane both along its length and with it by an amount equal to the length of the winch drum, which is facilitated by the limit rollers 4 on the frame 1 and the guides 5. At this time, pressure is created in the hydraulic sensor 2 due to bending The moment of movement of the wire between the rollers 3. The pressure from the sensor chamber can then be supplied to any of the known measuring circuits for measuring and monitoring the tension of the moving wire. The proposed device will make it possible to increase the accuracy of the tension of the moving WIRE due to the constant angle between the measuring mechanism and the moving wire and ensuring the freedom of horizontal movement. effort. And these advantages allow for more accurate automatic control of the wire tension, which prevents it from being overloaded or broken by known measuring instruments. Apparatus of the Invention A device for measuring the tension of a wire moving in a borehole, comprising a rigid frame with a hydraulic force sensor disposed on it and connected to a measuring circuit, characterized in that which it is installed in guides with the ability to move in the homo-tal plane, perpendicular to the direction of movement of the wire. Sources of information taken into account during the expiration. 1. Authors certificate of the USSR 645042, кп. G 01 L 5/04, 1979. 2. USSR author's certificate number 465570, cl. G 01 L 5/04, 1975.