CN211038565U - Fishing device for hanger of sucker rod - Google Patents

Abstract

The utility model relates to a technical field of instrument in the pit is a sucker rod hanger fishing device, and it includes overshot, connector, and connector an organic whole is connected in the upper end of overshot, follows the screw that the at least interval of circumferencial direction was provided with two on the lateral wall of overshot lower part, and all threaded connection has the jackscrew in every screw, is provided with the snap ring on the lower port of overshot, and the antiskid packing ring is installed to the inboard of snap ring. The utility model has the advantages of reasonable and compact structure, through screwing up four ascending jackscrew symmetry balances to the top connection for the sucker rod hanger provides horizontal locking force, can further increase through setting up the anti-skidding packing ring the utility model discloses and by the frictional force between the salvage thing, once only salvage successfully through the crane, because the salvage process need not to go up the workover rig and salvage, consequently practiced thrift the borehole operation cost, reduced the operation cycle, improve oil recovery efficiency, also need not provide oil pipe at this in-process, consequently also reduced the well accuse risk.

Description

Fishing device for hanger of sucker rod

Technical Field

The utility model relates to a technical field of downhole tool is a sucker rod hanger fishing device.

Background

Along with the increase of the oil field excavation potential, the stratum energy gradually declines, the three gas injection production wells gradually increase, the pumping wells of the pumping wells are easy to meet the gas injection requirement, a sucker rod hanger is needed to be used for hanging a sucker rod in an oil pipe in the gas injection process, but the screw thread on the sucker rod hanger becomes fragile due to oxygen corrosion and chemical corrosion in the gas injection process, the sliding wire and the dropping port are easy to cause in the buckling and hanging processes, the sucker rod cannot be lifted out of a well head and the hanging and pumping operations of the butted polished rod are carried out, the conventional treatment mode is that a workover rig is used for lifting the oil pipe out of the well head, then the sucker rod is lifted out of the well head for buckling operations, so that time and labor are wasted, the cost of workover operations is greatly increased, the oil production period is reduced, and the well head is out of control in the oil pipe lifting process.

Disclosure of Invention

The utility model provides a sucker rod hanger fishing device has overcome above-mentioned prior art not enough, and it can effectively solve current machine pumping well and carry out the make-up again after the gas injection and hang and take out, causes the smooth silk to take off the mouth easily, and then uses the workover rig to cause the operating cost to increase by a wide margin, oil recovery cycle reduces, has the problem of great well control risk.

The purpose of the application is realized as follows: sucker rod hanger fishing device, its characterized in that: including an overshot, the connector, connector body coupling is in the upper end of an overshot, be provided with two screws along the at least interval of circumferencial direction on the lateral wall of an overshot lower part, all threaded connection has the jackscrew in every screw, be provided with the snap ring on the lower port of an overshot, the snap ring includes preceding semicircle, the back semicircle, the upper end of back semicircle and the lower extreme body coupling of an overshot, the left end of back semicircle is articulated with the right-hand member of preceding semicircle, locking device is installed to the left end of preceding semicircle, locking device and back semicircle right-hand member fixed connection are passed through to the left end of preceding semicircle, anti-skidding packing ring is all installed with back semicircle inboard to preceding semicircle.

The following are further optimization or/and improvement of the technical scheme of the utility model:

furthermore, the connector is cylindrical, and an external thread section and an internal thread section are respectively arranged on the outer side wall and the inner side wall of the connector.

Furthermore, the wall of the fishing barrel is provided with at least two connecting holes.

Furthermore, an inner disc is in threaded connection with the inner side wall of the upper portion of the fishing barrel, at least two clamping jaws are uniformly distributed on the lower end face of the inner disc in the circumferential direction, and clamping teeth are densely distributed on the outer sides of the clamping jaws.

The utility model has the advantages of reasonable and compact structure, it will earlier through the connector the utility model discloses connect on the crane, then open the snap ring, with salvage the barrel casing in the outside of sucker rod hanger upper joint, screw up four ascending jackscrew symmetrical balance in direction after that, provide horizontal locking force with the upper joint for sucker rod hanger, lock the snap ring again at last, make the anti-skidding packing ring compress tightly on the upper joint of sucker rod hanger, with this further increase the utility model discloses and by the frictional force between the salvage thing, once only salvage successfully through the crane, owing to only use the crane to salvage the operation among the salvage process, need not to go up workover rig and salvage, practice thrift the operating cost in the pit, reduced the duty cycle, improve oil recovery efficiency, also need not provide oil pipe at this in-process, consequently also reduced the well control risk.

Drawings

The specific structure of the application is given by the following figures and examples:

FIG. 1 is a schematic front view of a fishing device of a sucker rod hanger;

legend: 1. the fishing rod comprises a fishing barrel 2, a connector 3, a jackscrew 4, a front semicircle 5, a rear semicircle 6, a locking device 7, an anti-slip gasket 8, a connecting hole 9, an inner disc 10 and a clamping jaw.

Detailed Description

The present application is not limited to the following examples, and specific implementations may be determined according to the technical solutions and practical situations of the present application.

In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of up, down, left, right, etc. is determined in accordance with the layout direction of fig. 1 in the specification.

The invention will be further described with reference to the following examples and drawings:

example (b): as shown in figure 1, this sucker rod hanger fishing device includes overshot 1, connector 2, 2 a body coupling of connector are in the upper end of overshot 1, be provided with two screws along the at least interval of circumferencial direction on the lateral wall of overshot 1 lower part, all threaded connection has jackscrew 3 in every screw, be provided with the snap ring on the lower port of overshot 1, the snap ring includes preceding semicircle 4, latter half circle 5, the upper end of latter half circle 5 and the lower extreme body coupling of overshot 1, the left end of latter half circle 5 is articulated with the right-hand member of preceding semicircle 4, locking device 6 is installed to the left end of preceding semicircle 4, locking device 6 and the right-hand member fixed connection of latter half circle 5 are passed through to the left end of preceding semicircle 4, non-slip washer 7 is all installed to the inboard of preceding semicircle 4 and latter half circle 5.

The utility model is suitable for a cause the top connection of sucker rod hanger and take place the slick-silk between the butt joint instrument because of corroding behind the machine pumping well gas injection, and then can't hang the well of taking out the oil extraction operation, on being connected to the lifting hook of crane earlier on the upper portion of lifting the nipple joint when using, then install the lower part of lifting the nipple joint on connector 2, open preceding semicircle 4 and the connection between latter half circle 5 through locking device 6, make the top connection of sucker rod hanger enter into fishing barrel 1, later screw 3 symmetrical balance tightening up four ascending jackscrews, make the screw end top of jackscrew 3 tighten up on the top connection of sucker rod hanger, in order to provide horizontal locking force for the top connection of fishing rod hanger, last again with preceding semicircle 4 lock on later semicircle 5 and through locking device 6 fixed connection together, make anti-slip gasket 7 compress tightly on the top connection of sucker rod hanger, thereby further increase the utility model discloses and by the frictional force between the salvaged thing, locking device 6 can be the nut structure, the crane also can be the structure of other forms, as long as can connect preceding semicircle 4 left side of sucker rod hanger and the fixed end of sucker rod hanger and the oil extraction rod hanger can not succeed in the well operation cost per year only through the oil well after the oil well, the saving operation cost of saving comes down 10 years, the saving operation cost calculation the oil well, the efficiency of saving comes down only through the oil well, the saving operation cost saving is carried out after the oil well, the saving is carried out after 10 ten thousand years, the oil well, the saving operation cost saving is saved by the oil well, the saving efficiency is saved by the saving efficiency of saving is saved by the saving operation cost of the oil well, the.

According to the actual need, the fishing device of the sucker rod hanger is further optimized or/and improved:

further, as shown in fig. 1, the connector 2 is cylindrical, and an external thread section and an internal thread section are respectively disposed on an outer side wall and an inner side wall of the connector 2.

Because set up external screw thread section and internal thread section on the connector 2, regardless of the link that promotes the nipple joint is external screw thread or internal thread like this, all can conveniently install the utility model discloses a connector 2 is last.

Further, as shown in fig. 1, at least two connecting holes 8 are formed in the wall of the overshot 1.

The crane except can with through promoting the nipple joint the utility model discloses hoist, under the condition that does not promote the nipple joint, can also wear wire rope and lift by crane in connecting hole 8, connecting hole 8's setting has been widened the utility model discloses a promote the mode, have fine practicality.

Further, as shown in fig. 1, an inner disc 9 is in threaded connection with the inner side wall of the upper portion of the overshot 1, at least two clamping jaws 10 are uniformly distributed on the lower end face of the inner disc 9 along the circumferential direction, and clamping teeth are densely distributed on the outer sides of the clamping jaws 10.

According to actual need, when the object of being salvaged is cylindric, install fishing barrel 1 with inner disc 9 that is equipped with jack catch 10 in, then stretch to the inside of being dragged for the object in the jack catch 10, through the latch on the jack catch 10, will be dragged for the object and steadily grasp, thereby enlarged the utility model discloses an application range makes the utility model discloses both can salvage cylindric object, can also salvage cylindric object.

The foregoing description is by way of example only and is not intended as limiting the embodiments of the present application. All obvious variations and modifications of the present invention are within the scope of the present invention.

Claims (5)

1. The utility model provides a sucker rod hanger fishing device, a serial communication port includes a fishing barrel, the connector, connector body coupling is in the upper end of a fishing barrel, be provided with two screws along the at least interval of circumferencial direction on the lateral wall of fishing barrel lower part, all threaded connection has the jackscrew in every screw, be provided with the snap ring on the lower port of a fishing barrel, the snap ring includes preceding semicircle, the back semicircle, the upper end of back semicircle and the lower extreme body coupling of a fishing barrel, the left end of latter semicircle is articulated with the right-hand member of preceding semicircle, locking device is installed to the left end of preceding semicircle, locking device and the right-hand member fixed connection of back semicircle are passed through to the left end of preceding semicircle, anti-skidding packing ring is all installed with the inboard of back semicircle to preceding semicircle.

2. The sucker rod hanger fishing device of claim 1, wherein the connector is cylindrical, and the outer side wall and the inner side wall of the connector are respectively provided with an external thread section and an internal thread section.

3. The sucker rod hanger fishing device of claim 1 or 2, wherein the wall of the fishing barrel is provided with at least two connecting holes.

4. The sucker rod hanger fishing device of claim 1 or 2, wherein the inner side wall of the upper part of the fishing barrel is in threaded connection with an inner disc, at least two clamping jaws are uniformly distributed on the lower end surface of the inner disc along the circumferential direction, and clamping teeth are densely distributed on the outer sides of the clamping jaws.

5. The sucker rod hanger fishing device of claim 3, wherein the inner wall of the upper part of the fishing barrel is in threaded connection with an inner disc, at least two clamping jaws are uniformly distributed on the lower end surface of the inner disc along the circumferential direction, and clamping teeth are densely distributed on the outer sides of the clamping jaws.

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