CN220976418U - Winch frame for well - Google Patents

Abstract

The utility model relates to a winch frame for a well, in particular to a winch frame for a downhole pickup under ultra-deep micro-logging. The winch frame reduces the damage loss rate of the bottom hole detector, improves the production speed and reduces the waste of human resources, and meanwhile, the instrument can be fixed at any position so as to meet the measurement requirements of users.

Description

Winch frame for well

Technical Field

The utility model relates to a winch frame for a well, in particular to a winch frame for a super-deep micro-logging downhole well when a downhole detector is put on and off.

Background

In performing a well logging, some data (e.g., seismic waves, etc.) is acquired in the well and downhole of the deep micro-well, and therefore instrumentation (e.g., detectors) is required to be lowered into the well. At present, the instrument is usually delivered manually, which often requires much labor and time in the instrument delivering process, and the instrument is slowly delivered to the bottom of the well. The instrument is upwards retracted through manpower when retrieving the instrument, because the environment is complicated in the well, this in-process instrument receives the damage very easily, in order to use manpower sparingly, has the device of taking a reference old well to catch water at present, and the roller bearing that has the rope is twined to outer epaxial face promptly has the handle that roller bearing one end is connected, realizes the instrument through the device to descend and upwards receive. The device can not be used for fixing the instrument at a set height in the process of lowering and collecting the underground instrument, and can not meet different measurement requirements.

Disclosure of utility model

The utility model aims to provide a winch frame for a well, which is used for solving the problem that the position of an instrument cannot be fixed at will when the instrument is lowered and lifted.

In order to achieve the above object, the present utility model provides a method comprising:

The utility model relates to a winch frame for a well, which comprises a support frame used for being fixedly arranged at a well mouth, wherein a rolling shaft is fixedly arranged on the support frame, a rope is wound on the outer axial surface of the rolling shaft, a baffle disc is sleeved at least one end of the rolling shaft, and a locking mechanism used for locking at least one side of the baffle disc is arranged on the support frame.

The beneficial effects are that: according to the winch frame for the well, the supporting frame is fixed above the well mouth, the end head of the rope is fixed on an instrument to be lowered into the well, the instrument is lowered and is lifted up from the well through the cooperation of the rolling shaft and the shaft handle, and the winch frame not only reduces manpower and the time for lowering/lifting up the instrument. At least one lateral wall of the roller is sleeved with a baffle disc, and a locking mechanism for locking at least one side baffle disc is arranged on the support frame, so that the instrument can be fixed at a set height through the locking mechanism to meet different logging requirements.

Further, in order to balance the stress at the two ends of the roller and increase the locking effect, the two ends of the roller are sleeved with the baffle plates, and the support frames are provided with locking mechanisms for locking the baffle plates at the two ends of the roller respectively.

Further, for supporting the capstan structure, the support frame includes upper supporting seat and lower supporting seat, and upper and lower supporting seats are fixedly connected through the support column.

Further, in order to achieve a better locking effect, the baffle disc is a ratchet wheel, the locking mechanism is a shifting piece which is arranged on the upper supporting seat aiming at the ratchet wheel, and the shifting piece is used for shifting to a set position to fix the ratchet wheel when the rope reaches a set height.

Further, for better supporting roller, the stability of the winch frame is increased, the upper supporting seat and the lower supporting seat are rectangular, and the side length of the upper supporting seat is smaller than that of the lower supporting seat.

Further, the protective layer is arranged on one side of the upper supporting seat parallel to the rolling shaft, so that abrasion of a data transmission line or a power line of an up-down instrument can be reduced.

Further, in order to prevent abrasion of a data transmission line or a power line of the instrument and avoid electrostatic interference when the instrument is lowered or lifted, the protective layer is an antistatic film.

Further, for better structure of stabilizing winch frame, the support column is four, and four angles corresponding to the upper and lower support seats are respectively fixedly connected, and the fixed connection adopts sleeving and bolt fastening modes.

Drawings

FIG. 1 is a schematic view of the structure of a winch frame in an embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of the upper support base according to the embodiment of the present utility model;

FIG. 3 is a schematic view of the outside cutting teeth of the baffle disc in an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a locking mechanism in an embodiment of the utility model;

wherein, 1-base; 2-supporting columns; 3-an upper supporting seat; 4-rolling shafts; 5-rope; 6-a baffle disc; 7-locking mechanism; 8-a protective layer; 9-shaft handle.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings.

Well winch frame embodiment:

The winch frame for the well shown in fig. 1 comprises a support frame which is used for being fixedly arranged at a well mouth, a rolling shaft is fixedly arranged on the support frame, a rope is wound on the outer axial surface of the rolling shaft, a baffle disc is sleeved at least one end of the rolling shaft, and a locking mechanism for locking at least one side of the baffle disc is arranged on the support frame.

The support frame comprises a base (lower support seat) 1, four support columns 2 and an upper support seat (operation surface) 3. The lower supporting seat is fixedly connected into a rectangular structure through four stainless steel square tubes and is fixed on the outer side of a wellhead, and each corner is welded by a short square tube for further fixation. The four corners of the base are welded with a short square tube respectively, the support column is sleeved in the short square tube, and the support column is further fixed to be connected with the base by sleeving and fastening bolts. Similarly, for the connection between the firm support column and the upper support base, four short square tubes are welded at the four corners of the upper support base, as shown in fig. 2, the support column is connected with the upper support base 3 by sleeving and fastening bolts, and the upper support base is used for supporting the roller 4. For example, the roller may be a steel cylinder of 5mmDN x 30 and 0.75m, the square tube of four corners of the upper and lower support seats may be 50 x 2 and 0.1m, and the support column may be 40 x 1. For cost saving, the roller 4 may be a steel tube with a length of 5mmDN to 0.75m, the short square tube with four corners of the upper and lower support seats may be a length of 50×50×2 to 0.1m, and the support column may be a length of 40×40×1. As other embodiments, the support columns may be three.

The upper supporting seat can also be two stainless steel square tubes for placing the rolling shafts, and the upper supporting seat is arranged according to actual requirements, and the connection mode is welding. The stainless steel square tube can be arranged in a groove mode at the part for supporting the rolling shaft, so that the rolling shaft is fixed, and the rolling shaft is prevented from moving in the rotating process. Alternatively, a convex groove may be provided at a portion where the roller is placed. In this embodiment, the upper supporting seat and the lower supporting seat all adopt rectangular structures, and in order to better play a fixing role, the side length of the upper supporting seat is smaller than that of the lower supporting seat, and four supporting columns are respectively and fixedly connected with four corners of the corresponding upper supporting seat and the lower supporting seat.

At least one end of the rolling shaft is sleeved with a baffle disc 6, and a locking mechanism for locking at least one side baffle disc is arranged on the supporting frame. As shown in fig. 3, in order to enable the catch plate to lock, the catch plate 6 in this embodiment is a ratchet, and the locking mechanism 7 is a dial arranged on the upper support base for the ratchet, and the dial is used to dial to a set position to fix the ratchet when the rope 5 reaches a set height. For example, at least one ratchet is arranged at the outer edge of the ratchet wheel, so as to facilitate stopping the instrument at a fixed height, the ratchet wheels in the embodiment are a plurality of ratchet wheels, and the ratchet wheels are uniformly arranged. As other embodiments, only one ratchet may be provided, and as another embodiment, when there are a plurality of ratchet teeth, non-uniform arrangement is possible. Wherein, in order to avoid too disorder of the rope of winding to break away from the roller bearing, two fender dish cover in this embodiment are established in the inboard of upper supporting seat.

As shown in fig. 4, the locking mechanism 7 in the present embodiment is a pulling piece, and when the downhole device needs to be fixed at a set position, the pulling piece is pulled to the set position, and the ratchet is fixed at the set position, so as to realize the locking function. When the locking function is released, the roller is reversely rolled, so that the ratchet wheel reversely rotates to a certain angle, the poking piece is poked out of the set position, and the locking state is released.

The outer surface of the roller is wound with a rope 5, which can be a steel wire rope, a common rope or a nylon rope, so that the damage is avoided for long-time use, and the rope in the embodiment adopts the steel wire rope, and particularly adopts the steel wire rope with the length of 8 mm. The rope terminal wound on the outermost side is provided with a structure for fixing the instrument. The structure of the fixing instrument can be a rope buckle and a clip, and can also be other structures, and the specific structure can be determined according to the shape and the characteristics of the instrument.

One end of the rolling shaft is connected with a shaft handle 9, the shaft handle can be a handle, the rolling shaft is rotated by the handle to achieve the purpose of lowering and up-winding the rope, and in another embodiment, the shaft handle can be connected with a motor to realize the lowering and up-winding of the rope by electrically controlling the rolling shaft to rotate.

The protective layer 8 is arranged on one side of the upper supporting seat parallel to the rolling shaft and is used for supporting power lines such as a data transmission line of an instrument, so that the power lines and the ropes can be in a synchronous state. Preferably, in order to prevent the data transmission line or the power line of the instrument from being worn, the outer surface of the drum is wrapped with a protective layer, in particular, an antistatic layer is adopted, so that electrostatic interference during lowering or lifting is further avoided. As other embodiments, the outside of the drum (roller) may not be wrapped with the antistatic layer.

The above-described structure is a preferred embodiment, and as other embodiments, the lock mechanism may be other structures as long as the device for locking the stopper disk can be satisfied.

Claims (6)

1. The winch frame for the well comprises a support frame which is fixedly arranged at a well mouth, a rolling shaft is fixedly arranged on the support frame, a rope is wound on the outer axial surface of the rolling shaft, and the winch frame is characterized in that a baffle disc is sleeved at least one end of the rolling shaft, and a locking mechanism for locking at least one side baffle disc is arranged on the support frame; the support frame includes supporting seat and lower supporting seat, and upper and lower supporting seat is through support column fixed connection between the seat, and the inoxidizing coating is installed to one side that the upper supporting seat is on a parallel with the roller bearing.

2. The winch frame for a well of claim 1, wherein the two ends of the roller are respectively sleeved with a baffle disc, and the supporting frames are respectively provided with a locking mechanism for locking the baffle discs at the two ends of the roller.

3. A winch frame for a well as claimed in claim 2, characterized in that the catch is a ratchet wheel and the locking mechanism is a pulling piece arranged on the upper support seat for the ratchet wheel, said pulling piece being adapted to be pulled to a set position for securing the ratchet wheel when the rope reaches a set height.

4. A winch frame for a well as claimed in claim 3, wherein the upper and lower support blocks are rectangular and the side length of the upper support block is smaller than the side length of the lower support block.

5. The winch frame for a well of claim 1, wherein the protective layer is an antistatic film.

6. The winch frame for a well of claim 1, wherein the number of the supporting columns is four, and the four corners of the supporting columns are respectively fixedly connected with the corresponding upper supporting seat and the lower supporting seat, and the fixed connection is sleeved and fastened by bolts.