CN216349284U

CN216349284U - Logging cable tension metering device

Info

Publication number: CN216349284U
Application number: CN202220653800.3U
Authority: CN
Inventors: 王磊; 张立亭; 王辉; 刘洋; 侯方
Original assignee: Shengli Oil Field Changhai Petroleum Technology Co ltd
Current assignee: Shengli Oil Field Changhai Petroleum Technology Co ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-04-19
Anticipated expiration: 2032-03-24

Abstract

The utility model relates to the technical field of oil field dynamic monitoring, in particular to a logging cable tension metering device. The technical scheme is as follows: the lower end of the supporting arm is inserted into the pulley shaft sleeve, and the upper end of the supporting arm is provided with a guide pulley; a pulley seat is fixed on the outer wall of one side of the pulley shaft sleeve, and a fastening handle is arranged on the outer wall of the other side of the pulley shaft sleeve and is movably connected with the lower end of the supporting arm; the lower part of the inner cavity of the pulley shaft sleeve is provided with a buffer column and a weighing probe, one end of the logging cable bypasses the guide pulley, and the other end of the logging cable passes through the inner cavity of the pulley seat and goes down to the underground. The beneficial effects are that: when the pressure that the logging cable received changes by a wide margin suddenly, the cylindrical polytetrafluoroethylene material on buffer column upper portion can absorb the most impact force when the leading pulley is beated from top to bottom, and the lower part can contact transmission pressure with the probe of weighing well, guarantees that the metering data is accurate, and the device installation is simple, does not receive offshore platform space restriction, and data teletransmission distance can reach 100m, satisfies dynamic monitoring construction requirement.

Description

Logging cable tension metering device

Technical Field

The utility model relates to the technical field of oil field dynamic monitoring, in particular to a logging cable tension metering device.

Background

In the dynamic monitoring construction process of an oil-water well in an oil field, when a tool string or an instrument string is pulled down into the well, and is stuck and released, the tension force borne by a logging cable is monitored in real time, so that the stress condition of the downhole instrument string is judged, and the accident that the logging cable is broken or the instrument string is pulled off due to sudden increase of the tension force to cause the instrument string or the tool string to fall into the well can be prevented, therefore, the monitoring of the tension force borne by the logging cable is an important means for ensuring the construction safety.

At present, a tension sensor is mainly installed on a logging winch outgoing line counting device, a logging cable is compressed through a pulley block, the resilience force of the logging cable is measured, and the received tension is measured. However, the available space of the offshore platform which prevails in the oil field is generally small, the equipped logging winch is simple in structure and low in configuration, and a tensiometer sensor is not equipped, so that the tensile force applied to the logging cable is judged only by the running current value of the winch, and larger errors and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a logging cable tension metering device aiming at the defects in the prior art, which does not occupy the limited space of a platform, a weighing probe is arranged in a pulley shaft sleeve, and the aim of monitoring the logging cable tension is fulfilled by measuring the pressure borne by the weighing probe.

The utility model provides a logging cable tension metering device, which adopts the technical scheme that: the device comprises a guide pulley, a logging cable, a support arm, a bearing, a rotating shaft, a pulley seat, a fastening handle, a buffer column, a weighing probe and a pulley shaft sleeve, wherein the lower end of the support arm is inserted into the pulley shaft sleeve, and the upper end of the support arm is provided with the guide pulley through the rotating shaft and the bearing; the outer wall of one side of the pulley shaft sleeve is fixed with a pulley seat, the outer wall of the other side of the pulley shaft sleeve is provided with a round hole, and a fastening handle is arranged at the round hole and is movably connected with the lower end of the supporting arm; the lower part of the inner cavity of the pulley shaft sleeve is provided with a buffer column and a weighing probe, the buffer column is positioned between the weighing probe and the lower end of the supporting arm, and the weighing probe is positioned at the bottom of the inner cavity of the pulley shaft sleeve; one end of the logging cable bypasses the guide pulley, and the other end of the logging cable passes through the inner cavity of the pulley seat and is arranged underground.

Preferably, the support arm is of a Y-shaped structure, the lower end of the support arm is a cylindrical insertion shaft, and the middle part of the support arm is provided with a long key slot.

Preferably, the guide pulley is of a cylindrical structure, and a groove is formed in the circular outer wall and matched with the logging cable.

Preferably, the guide pulley has a plurality of through holes symmetrically formed in the middle thereof.

Preferably, the upper part of the buffer column is made of cylindrical polytetrafluoroethylene and is in contact with the bottom of a cylindrical inserting shaft of the supporting arm, and the lower part of the buffer column is embedded with a cylindrical stainless steel contact block and is in contact with the weighing probe.

Preferably, the weighing probe is connected to the wireless transmission module through a signal cable.

Preferably, the outer end of the fastening handle is a circular hand wheel, the inner end of the fastening handle is a fastening bolt, and the outer wall of the circular hand wheel is provided with anti-skid grains.

The utility model has the beneficial effects that:

firstly, a fastening handle is arranged outside a pulley shaft sleeve, and a fastening bolt is inserted into a long key groove of a supporting arm in the using process, so that on one hand, the supporting arm cannot axially rotate, and the condition that a logging cable is out of a groove and an accident is caused due to the fact that a guide pulley swings under sudden stress in the process that an instrument runs into a well is prevented; on the other hand, the guide pulley is not limited when being pressed downwards by the logging cable and can freely transmit pressure to the weighing probe all the time;

two, when the pressure that the logging cable received changes by a wide margin suddenly, for example, the instrument cluster is separated the card successfully or is met when the card, pressure reduces by a wide margin, can cause the leading pulley to jump suddenly, most impact force when the cylindrical polytetrafluoroethylene material on buffer column upper portion can absorb the leading pulley and beat from top to bottom this moment prevents that the measurement data from changing by a wide margin, cause the data curve to fluctuate violently, the cylindrical stainless steel contact block of lower part mosaic can be well with weighing probe contact transmission pressure, guarantee that the measurement data is accurate, the potential safety hazard has also been reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of a lower portion of the present invention;

in the upper diagram: guide pulley 1, support arm 2, bearing 3, pivot 4, pulley holder 5, fastening handle 6, bumping post 7, weighing probe 8, logging cable 9, pulley shaft sleeve 10, recess 1.1, through-hole 1.2, long keyway 2.1, circular hand wheel 6.1, fastening bolt 6.2, anti-skidding line 6.3, wireless transmission module 8.1.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Embodiment 1, referring to fig. 1 and 2, the logging cable tension metering device provided by the utility model comprises a guide pulley 1, a support arm 2, a bearing 3, a rotating shaft 4, a pulley seat 5, a fastening handle 6, a buffer column 7, a weighing probe 8, a logging cable 9 and a pulley shaft sleeve 10, wherein the lower end of the support arm 2 is inserted into the pulley shaft sleeve 10, and the guide pulley 1 is installed at the upper end of the support arm 2 through the rotating shaft 4 and the bearing 3; the pulley shaft sleeve 10 is characterized in that a pulley seat 5 is fixed on the outer wall of one side of the pulley shaft sleeve, a round hole is formed in the outer wall of the other side of the pulley shaft sleeve, and a fastening handle 6 is installed at the round hole and movably connected with the lower end of the supporting arm 2; a buffer column 7 and a weighing probe 8 are arranged at the lower part of the inner cavity of the pulley shaft sleeve 10, the buffer column 7 is positioned between the weighing probe 8 and the lower end of the support arm 2, and the weighing probe 8 is positioned at the bottom of the inner cavity of the pulley shaft sleeve 10; one end of the logging cable 9 is connected to the winch by passing around the guide pulley 1, and the other end is lowered into the well through the inner cavity of the pulley block 5.

The support arm 2 is of a Y-shaped structure, the lower end of the support arm 2 is a cylindrical insertion shaft, and a long key groove 2.1 is formed in the middle of the cylindrical insertion shaft, which is shown in fig. 2, which is an enlarged schematic view of another angle of the lower portion of the present invention.

The guide pulley 1 is of a cylindrical structure, a groove 1.1 is formed in the circular outer wall of the guide pulley 1, the groove 1.1 is matched with a logging cable 9, and a plurality of through holes 1.2 are symmetrically formed in the middle of the guide pulley 1 and used for reducing the weight of the guide pulley 1; the upper portion of foretell bumping post 7 is cylindrical polytetrafluoroethylene material, and the cylindrical bottom contact of inserting the axle with support arm 2, cylindrical stainless steel contact piece is inlayed to the lower part, contacts with weighing probe 8, and foretell weighing probe 8 passes through signal cable and is connected to wireless transmission module 8.1, and wireless transmission module 8.1 can install the outer wall at pulley axle sleeve 10, also can install and fix on the lubricator or place near the place that does not have the shelter from of production tree.

In addition, the outer end of the fastening handle 6 is a circular hand wheel 6.1, the inner end of the fastening handle is a fastening bolt 6.2, and the outer wall of the circular hand wheel 6.1 is provided with anti-skid grains 6.3, so that the circular hand wheel 6.1 can be rotated more easily.

When the utility model is used, one end of a logging cable 9 is connected to a winch by bypassing the guide pulley 1, the other end of the logging cable is connected with an instrument string and is arranged underground, and the upper side of the logging cable passes through the inner cavity of the pulley seat 5. In the process of going into a well, encountering a blockage or releasing the blockage, two downward pressures can be generated on the guide pulley 1 at the top of the blowout prevention pipe, the pressure borne by the guide pulley 1 can be directly measured through the weighing probe 8, and then the tension borne by the logging cable 9 is reflected.

The fastening handle 6 is arranged outside the pulley shaft sleeve 10, and in the using process, the fastening bolt 6.2 is inserted into the long key groove 2.1 of the supporting arm 2, so that on one hand, the supporting arm 2 cannot axially rotate, and the condition that the guide pulley 1 swings due to sudden stress in the process of stringing an instrument into a well to cause the groove removal of the logging cable 9 to cause an accident is prevented; on the other hand, the guide pulley 1 is not limited when being pressed downwards by the logging cable 9 and can freely transmit pressure to the weighing probe 8 all the time;

in addition, when the pressure that the logging cable 9 received changes by a wide margin suddenly, for example when the instrument cluster is successful in releasing the card or meets the card, pressure reduces by a wide margin, can cause guide pulley 1 to jump suddenly, and the cylindrical polytetrafluoroethylene material on buffer column 7 upper portion can absorb the most impact force when guide pulley 1 jumps from top to bottom this moment, prevents that the metering data from changing by a wide margin, causes the data curve to fluctuate violently, and the cylindrical stainless steel contact block of lower part mosaic can contact transmission pressure with weighing probe 8 well, guarantees that the metering data is accurate.

Realize data teletransmission to logging winch department through wireless transmission module 8.1, supply winch operating personnel to monitor the cable atress, compare prior art, the device installation is simple, does not receive offshore platform space restriction, and data teletransmission distance can reach 100m, satisfies dynamic monitoring construction requirement.

Embodiment 2, the logging cable tension metering device provided by the utility model comprises a guide pulley 1, a support arm 2, a bearing 3, a rotating shaft 4, a pulley seat 5, a fastening handle 6, a buffer column 7, a weighing probe 8, a logging cable 9 and a pulley shaft sleeve 10, wherein the lower end of the support arm 2 is inserted into the pulley shaft sleeve 10, and the guide pulley 1 is installed at the upper end of the support arm 2 through the rotating shaft 4 and the bearing 3; the pulley shaft sleeve 10 is characterized in that a pulley seat 5 is fixed on the outer wall of one side of the pulley shaft sleeve, a round hole is formed in the outer wall of the other side of the pulley shaft sleeve, and a fastening handle 6 is installed at the round hole and movably connected with the lower end of the supporting arm 2; a buffer column 7 and a weighing probe 8 are arranged at the lower part of the inner cavity of the pulley shaft sleeve 10, the buffer column 7 is positioned between the weighing probe 8 and the lower end of the support arm 2, and the weighing probe 8 is positioned at the bottom of the inner cavity of the pulley shaft sleeve 10; one end of the logging cable 9 is connected to the winch by passing around the guide pulley 1, and the other end is lowered into the well through the inner cavity of the pulley block 5.

In contrast to the embodiment 1, the present invention is,

the upper end of the supporting arm 2 is of a U-shaped or concave structure, the lower end of the supporting arm is of a cylindrical inserting shaft, and the middle part of the cylindrical inserting shaft is provided with a long key groove 2.1, so that the effect of supporting the guide pulley 1 can be met.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent changes made according to the technical solution of the present invention shall fall within the scope of the present invention as claimed.

Claims

1. The utility model provides a logging cable pulling force metering device, includes leading pulley (1) and logging cable (9), characterized by: the device is characterized by further comprising a supporting arm (2), a bearing (3), a rotating shaft (4), a pulley seat (5), a fastening handle (6), a buffer column (7), a weighing probe (8) and a pulley shaft sleeve (10), wherein the lower end of the supporting arm (2) is inserted into the pulley shaft sleeve (10), and the upper end of the supporting arm (2) is provided with a guide pulley (1) through the rotating shaft (4) and the bearing (3); a pulley seat (5) is fixed on the outer wall of one side of the pulley shaft sleeve (10), a round hole is formed in the outer wall of the other side of the pulley shaft sleeve, and a fastening handle (6) is installed at the round hole and is movably connected with the lower end of the supporting arm (2); a buffer column (7) and a weighing probe (8) are arranged at the lower part of the inner cavity of the pulley shaft sleeve (10), the buffer column (7) is positioned between the weighing probe (8) and the lower end of the supporting arm (2), and the weighing probe (8) is positioned at the bottom of the inner cavity of the pulley shaft sleeve (10); one end of a logging cable (9) bypasses the guide pulley (1), and the other end of the logging cable passes through the inner cavity of the pulley seat (5) and is arranged underground.

2. The wireline tension metering device of claim 1, wherein: the support arm (2) is of a Y-shaped structure, the lower end of the support arm (2) is a cylindrical insertion shaft, and the middle part of the support arm is provided with a long key groove (2.1).

3. The wireline tension metering device of claim 2, wherein: the guide pulley (1) is of a cylindrical structure, a groove (1.1) is formed in the outer wall of the circle, and the groove (1.1) is matched with the logging cable (9).

4. The wireline tension metering device of claim 2, wherein: the middle part of the guide pulley (1) is symmetrically provided with a plurality of through holes (1.2).

5. The wireline tension metering device of claim 2, wherein: the upper portion of cushion column (7) be cylindrical polytetrafluoroethylene material, contact with the cylindrical bottom of inserting the axle of support arm (2), cylindrical stainless steel contact block is inlayed to the lower part, contacts with weighing probe (8).

6. The wireline tension metering device of claim 5, wherein: the weighing probe (8) is connected to the wireless transmission module (8.1) through a signal cable.

7. The wireline tension metering device of claim 1, wherein: the outer end of the fastening handle (6) is a circular hand wheel (6.1), the inner end of the fastening handle is a fastening bolt (6.2), and anti-skid grains (6.3) are arranged on the outer wall of the circular hand wheel (6.1).