CN213684048U - Fishing socket - Google Patents
Fishing socket Download PDFInfo
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- CN213684048U CN213684048U CN202021509443.0U CN202021509443U CN213684048U CN 213684048 U CN213684048 U CN 213684048U CN 202021509443 U CN202021509443 U CN 202021509443U CN 213684048 U CN213684048 U CN 213684048U
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- guide shoe
- ball seat
- diameter
- fishing
- expanding plate
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Abstract
The utility model discloses a fishing barrel, which comprises a fishing barrel main body, a guide shoe, an expanding component and a ball seat, wherein the guide shoe is arranged at the bottom end of the fishing barrel main body; the diameter expanding assembly comprises a diameter expanding plate, a pressing plate and an elastic piece, wherein the guide shoe is provided with a mounting groove, the diameter expanding plate can be slidably mounted in the mounting groove along the radial direction of the guide shoe, the bottom end of the diameter expanding plate extends out of the bottom end of the guide shoe, the pressing plate is fixed on the guide shoe, two ends of the elastic piece are respectively connected with the pressing plate and the diameter expanding plate, the guide shoe is provided with a liquid flow hole, and the liquid flow hole is communicated with a central circulating channel and the mounting groove in the fishing barrel main body; the ball seat is arranged in the fishing barrel main body, and after the ball is thrown and falls on the ball seat, the bottom opening of the central circulation channel can be sealed by the ball throwing and the ball seat. Under the action of hydraulic pressure, the expanding plate expands outwards along the mounting groove, a second-stage guide shoe with a large diameter is formed at the lower end of the guide shoe, and falling objects are guided into the barrel. After the hydraulic pressure is removed, the expanding plate is reset under the action of the elastic piece and is taken out from the small-diameter part of the patching sleeve at the upper part, and the fishing is finished.
Description
Technical Field
The utility model belongs to the technical field of oil exploration and development operation instrument technique and specifically relates to a bailer is related to.
Background
In the process of fishing construction in the underground operation of the oil and gas field, the phenomenon that pipe falling objects are fished by using the fishing barrels in the large-diameter casing below the position where the diameter of the casing becomes smaller after patching can be met, the fishing of the falling objects can be realized by adapting to the large-size fishing barrels of the large-diameter casing, and the falling objects can not pass through the small-diameter casing at the patching section. Because the inner diameter of the patching casing pipe is small, the outer diameter of the well entering tool is limited, and if the falling objects are salvaged in the small-diameter casing pipe after patching, the fishing barrel can realize normal fishing.
However, when the falling objects fall into the large-diameter casing below the small-diameter casing of the patch section, the barrel-type tools which are put in and out of the fishing device cannot lead the falling objects into the tools due to the small diameter of the guide shoes, so that the fishing fails.
Therefore, how to solve the problem of salvaging the fallen objects in the large casing at the lower part of the small-diameter casing is a technical problem to be solved urgently by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a fishing barrel can improve and salvage the success rate, solves the big intraductal salvage difficult problem of junk of cover of minor diameter sleeve pipe lower part.
In order to achieve the above object, the present invention provides the following solutions:
a canister, comprising:
a canister body;
the guide shoe is arranged at the bottom end of the fishing cylinder main body;
the diameter expanding assembly comprises a diameter expanding plate, a pressing plate and an elastic piece, wherein the guide shoe is provided with an installation groove, the diameter expanding plate is slidably installed in the installation groove along the radial direction of the guide shoe and seals the installation groove to form a closed cavity with the installation groove, the bottom end of the diameter expanding plate extends out of the bottom end of the guide shoe, the pressing plate is fixed on the guide shoe and is positioned on the side of the diameter expanding plate far away from the axial lead of the guide shoe, the elastic piece is arranged between the pressing plate and the diameter expanding plate, and two ends of the elastic piece are respectively connected with the pressing plate and the diameter expanding plate,
the guide shoe is provided with a liquid flow hole which is communicated with a central circulation channel and the closed cavity in the fishing barrel main body;
the ball seat is arranged in the bailer main body, and the bowling falls back on the ball seat, the bowling with the ball seat can seal central circulation channel's bottom opening, the ball seat with the bowling is located the below of liquid flow hole.
In a specific embodiment, the diameter-expanding plate is provided with a groove, and the elastic element is arranged in the groove.
In another specific embodiment, the outer wall of the diameter expanding plate is provided with a first sealing groove for mounting a first sealing ring;
the first sealing ring is sealed with the inner wall of the first sealing groove.
In another specific embodiment, the number of the expanding plates is multiple, and the expanding plates are uniformly distributed annularly around the axis of the guide shoe;
and/or
The outer wall of the diameter expanding plate is arc-shaped.
In another specific embodiment, the outer wall of the ball seat is provided with a second sealing groove;
and a second sealing element sealed with the fishing cylinder main body is arranged in the second sealing groove.
In another specific embodiment, a limiting step for limiting the ball seat is arranged in the guide shoe, and the limiting step is arranged below the liquid flow hole.
In another specific embodiment, the ball seat is suspended within the canister body by the second seal,
after the ball is dropped on the ball seat, the ball seat can be driven to move downwards and is abutted against the limiting step;
or
The ball seat is arranged on the limiting step;
and/or
The ball seat is a cylindrical ball seat.
In another specific embodiment, the canister body comprises a barrel assembly and a screw slip;
the spiral slip is arranged in the barrel assembly and used for clamping an object to be salvaged;
the guide shoe is arranged at the bottom end of the barrel component.
In another specific embodiment, the cartridge assembly comprises an upper adapter and a cartridge;
the upper joint is used for being connected with a drilling tool;
the top end of the cylinder body is connected with the upper joint, and a sawtooth-shaped internal thread connected with the spiral slip is arranged in the cylinder body.
In another specific embodiment, the canister further comprises a snap ring;
the clamping ring is arranged in the cylinder body, is positioned below the internal thread and is used for limiting the spiral slip to move downwards;
the diameter of the sawtooth-shaped internal thread is gradually reduced along the axial lead of the cylinder body from top to bottom.
According to the utility model discloses an each embodiment can make up as required wantonly, and the embodiment that obtains after these combinations is also in the utility model discloses the scope is the utility model discloses a part of the concrete implementation mode.
When using the utility model discloses a during a bailer, be connected the drilling tool with the top of bailer main part and go into the well down, go down the fish top, it washes until satisfying the salvage requirement to open the pump, unload the kelly, throw the ball from the drilling rod, connect the kelly, it circulates to open the pump, send the ball to sit in the ball seat, throw the ball and the ball seat dies the inside central circulation channel of bailer main part, the liquid stream gets into the mounting groove from the discharge orifice of throwing ball and ball seat top in, because the sealed mounting groove of reducing plate, make mounting groove and expanding plate constitute seal chamber, under the effect of hydraulic pressure, overcome the elastic component and make the expanding plate outwards expand the diameter along the mounting groove, because the expanding plate length is longer than the guide shoe, thereby the second level guide shoe of major diameter has been formed at original guide shoe lower extreme, the rotary drilling tool, can introduce the barrel with the junk. The falling object is pushed up to push the ball seat and the throwing ball into the fishing barrel main body from the guide shoe, the falling object enters the fishing barrel main body, fishing is realized, hydraulic pressure is discharged, the expanding plate is restored to the original position under the action of the elastic piece, the diameter is restored, the falling object can be smoothly lifted out from the small-diameter part of the upper patch sleeve, fishing is completed, and the problem of fishing in the normal sleeve at the lower part of the patch sleeve is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without any novelty.
Fig. 1 is a schematic cross-sectional structural view of the canister provided by the present invention;
FIG. 2 is a schematic view of a half-section structure of the fishing barrel provided by the present invention when in operation;
fig. 3 is a schematic view of the structure a-a of fig. 2.
Wherein, in fig. 1-3:
the fishing barrel comprises a fishing barrel body 1, a guide shoe 2, an expanding component 3, an expanding plate 301, a pressure plate 302, an elastic piece 303, a ball seat 4, a mounting groove 201, a liquid flow hole 202, a central circulating channel 101, a groove 3011, a limiting step 203, a barrel component 102, a spiral slip 103, an upper joint 1021, a barrel 1022, a clamping ring 5, a steel ball 6 and a screw 304.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without making novelty work belong to the protection scope of the present invention.
As shown in fig. 1-3, the utility model provides a overshot, wherein, the overshot includes overshot main part 1, guide shoe 2, hole enlargement subassembly 3 and ball seat 4.
The top end of the canister body 1 is provided with a thread, and can be connected with a drill rod thread, and it should be noted that the canister body 1 is not limited to be connected with the drill rod thread, and may be connected in other manners such as clamping connection.
The expanding component 3 comprises an expanding plate 301, a pressing plate 302 and an elastic element 303, wherein the outer wall of the guide shoe 2 is provided with an installation groove 201, the expanding plate 301 can be slidably installed in the installation groove 201 along the radial direction of the guide shoe 2, and the expanding plate 301 seals the installation groove 201 to form a closed cavity with the installation groove 201. The guide shoe 2 is provided with a liquid flow hole 202, the liquid flow hole 202 is communicated with the central circulation channel 101 and the closed cavity in the fishing barrel main body 1, specifically, the liquid flow hole 202 is arranged at the bottom of the mounting groove 201, wherein the bottom of the mounting groove 201 refers to the side of the mounting groove 201 close to the axial lead of the guide shoe 2 along the radial direction of the guide shoe 2.
The bottom end of the diameter expanding plate 301 extends out of the bottom end of the guide shoe 2, and the pressing plate 302 is fixed on the guide shoe 2, specifically, the pressing plate 302 is detachably fixed on the guide shoe 2 through a screw 304. The pressing plate 302 is located on the side of the diameter expanding plate 301 far away from the axial lead of the guide shoe 2, the elastic element 303 is arranged between the pressing plate 302 and the diameter expanding plate 301, and two ends of the elastic element 303 are respectively connected with the pressing plate 302 and the diameter expanding plate 301.
The elastic member 303 may be placed in the mounting groove 201, both ends of the elastic member 303 may be connected to the enlarged diameter plate 301 and the groove bottom of the mounting groove 201, respectively, and the elastic member 303 may be a restoring member such as a spring that can be restored.
The bottom end of the diameter expanding plate 301 is in a bell mouth shape or a conical mouth, so that after the diameter of the diameter expanding plate 301 is expanded, a second-stage guide shoe 2 with a large diameter is formed at the lower end of the guide shoe 2, and fallen fish can be conveniently guided into the fishing cylinder main body 1.
The ball seat 4 is arranged in the fishing vessel body 1, and after the ball is thrown onto the ball seat 4, the ball throwing and the ball seat 4 can seal the bottom opening of the central circulation passage 101, and the ball seat 4 and the ball throwing are positioned below the liquid flow hole 202, so that the liquid flow can enter the installation groove 201. Specifically, the shot is a steel ball 6.
When using the utility model discloses a during the overshot, be connected the drilling tool with the top of overshot main part 1 and go into the well down, go down the fish top, it washes until satisfying the salvage requirement to open the pump, unload the kelly, throw the ball from the drilling rod, connect the kelly, open the pump circulation, send the ball seat 4, steel ball 6 and ball seat 4 are stifled with the inside central circulation passage 101 of overshot main part 1, the liquid stream gets into in mounting groove 201 from the liquid flow hole 202 of steel ball 6 and ball seat 4 top, because the sealed mounting groove 201 of reducing plate 301, make mounting groove 201 and expanding plate 301 constitute seal chamber, under the effect of hydraulic pressure, overcome elastic component 303 and make expanding plate 301 along the outside hole enlargement of mounting groove 201, because expanding plate 301 length is longer than guide shoe 2, thereby the second grade guide shoe of major diameter has been formed at original guide shoe 2 lower extremes, the rotary drilling tool, can introduce barrel 1022 with the junk. The falling object is jacked up to jack the ball seat 4 and the steel ball 6 from the guide shoe 2 into the fishing barrel main body 1, the falling object enters the fishing barrel main body 1 to realize fishing and unload hydraulic pressure, the expanding plate 301 is restored to the original position under the action of the elastic piece 303, the diameter is restored, the falling object can be smoothly lifted out from the small-diameter part of the upper patch sleeve, the fishing is finished, and the problem of fishing in the normal sleeve at the lower part of the patch sleeve is solved.
In other embodiments, the utility model discloses an expanding plate 301 is last to be seted up recess 3011, and elastic component 303 places in recess 3011. Specifically, the pressing plate 302 is placed at the top of the groove 3011, the outer walls of the pressing plate 302 and the diameter expanding plate 301 are both arc-shaped, and the inner side of the diameter expanding plate 301 (the inner side of the diameter expanding plate 301 is the surface of the diameter expanding plate 301 facing the axial lead of the guide shoe 2) is a complete arc surface. In a normal state, namely when the ball seat 4 and the ball throwing do not close the bottom opening of the central circulation passage 101, the outer walls of the pressing plate 302 and the expanding plate 301 are flush with the outer wall of the guide shoe 2.
Further, the utility model discloses an outer wall of hole enlargement board 301 is provided with the first seal groove of the first sealing washer of installation, and the inner wall of first sealing washer and first seal groove is sealed. Specifically, the first sealing groove is a rectangular groove, and it should be noted that the first sealing groove is not limited to a rectangular groove, and may have other shapes.
Further, the utility model discloses a number of hole enlargement board 301 is a plurality of, and hole enlargement board 301 is round the axial lead annular equipartition of guide shoe 2. The number of the diameter-expanding plates 301 is 3 to 5, and more preferably, the number of the diameter-expanding plates 301 is 4, and accordingly, the number of the first sealing grooves in the guide shoe 2 is equal to the number of the diameter-expanding plates 301, and the first sealing grooves correspond to the diameter-expanding plates 301 one by one.
In other embodiments, the outer wall of the ball seat 4 is provided with a second sealing groove, and a second sealing element sealed with the fishing barrel body 1 is installed in the second sealing groove.
Further, a limit step 203 for limiting the ball seat 4 is provided in the guide shoe 2, and the limit step 203 is provided below the liquid flow hole 202, and in particular, when the ball seat 4 is seated on the limit step 203, the liquid flow hole 202 is located above the ball seat 4.
Further, the utility model discloses a ball seat 4 hangs in a section of thick bamboo main part 1 through the second sealing member, after the bowling falls on ball seat 4, can drive ball seat 4 and move down to with spacing step 203 butt. The relative position of ball seat 4 and a section of thick bamboo main part 1 includes primary importance and second place, and the primary importance is that ball seat 4 hugs closely in the inner wall of a section of thick bamboo main part 1, and ball seat 4 is located the upper portion of a section of thick bamboo main part 1, and the second place is that ball seat 4 sits the ball and moves down to the lower part of a section of thick bamboo main part 1, and ball seat 4 sits and is used for blockking up middle circulation channel behind spacing step 203 for steel ball 6. The ball seat 4 is arranged on the upper part of the fishing barrel main body 1, so that after falling objects enter the fishing barrel main body 1, the ball seat 4 and the steel ball 6 can be jacked to the original fixed position by the falling objects, and fishing is not influenced.
It should be noted that the ball seat 4 may also be directly placed on the limiting step 203, and after the steel ball 6 is seated in the ball seat 4, the liquid flow can pass through the liquid flow hole 202, so that the diameter of the diameter expanding plate 301 is expanded.
Specifically, the ball seat 4 is a cylindrical ball seat 4, which facilitates sealing with the limit step 203.
In other embodiments, the canister body 1 comprises a barrel assembly 102 and a screw slip 103, the screw slip 103 is disposed in the barrel assembly 102 for gripping the material to be salvaged, and the guide shoe 2 is mounted at the bottom end of the barrel assembly 102.
Specifically, the barrel assembly 102 includes an upper joint 1021 and a barrel 1022, wherein the upper joint 1021 is used for connecting with a drilling tool, and specifically, the upper joint 1021 is connected with the drilling tool in a threaded manner, so as to facilitate assembly and disassembly.
The top end of the barrel 1022 is connected with the upper joint 1021, and specifically, the barrel body is in threaded connection with the upper joint 1021, so that the barrel body is convenient to disassemble and assemble. The cylinder 1022 is provided with a saw-toothed internal thread connected with the screw slips 103, and the diameter of the saw-toothed internal thread gradually decreases from top to bottom along the axial lead of the cylinder 1022.
In order to avoid the drilling tool to drive barrel subassembly 102 and slips to rotate together, the utility model discloses a bailer still includes snap ring 5, and snap ring 5 is installed in barrel 1022, and is located the internal screw thread below for spacing spiral slips 103 moves down.
When the fishing barrel is assembled, firstly, the ball seat 4 with the second sealing element is placed at the lower end of the upper joint 1021, then the spiral slips 103 and the clamping ring 5 are placed from the lower part of the barrel body 1022, the upper joint 1021 is installed, the diameter expanding plate 301 is placed in the installation groove 201 formed in the guide shoe 2, the elastic element 303 is placed in the groove 3011 of the diameter expanding plate 301, the outside is pressed by the pressing plate 302, the two ends are fixed on the guide shoe 2 by the screws 304, then the guide shoe 2 is installed on the barrel body 1022, and the tool installation is finished.
When the fishing device works, the upper part of a barrel body assembly 102 of the fishing barrel is connected with a drilling tool and is put into a well, specifically, an upper joint 1021 is connected with the drilling tool and is put to the top of a fish, a pump is started to flush until the fishing requirement is met, a kelly bar is removed, a steel ball 6 is put into the kelly bar from the drill bar, the pump is started to circulate, the steel ball 6 is placed in a ball seat 4, the friction force of a second sealing element is overcome, the steel ball 6 and the ball seat 4 are moved downwards to a limit step 203 at the lower part of a guide shoe 2, a central circulation channel 101 is blocked, liquid flow enters between the guide shoe 2 and an expanding plate 301 from a liquid flow hole 202 on the wall of a barrel body 1022 at the upper part of the limit step 203, the expanding plate 301 is expanded outwards by overcoming an elastic element 303 under the action of hydraulic pressure, the expanding plate 301 is longer than the guide shoe 2, so that a second-stage guide shoe 2 with a large diameter is formed at the lower end of the original guide shoe 2, the drilling tool is rotated, a, tubular salvage of post is plugged into the spiral slips 103, and is tightly clamped through the internal fishing threads of the spiral slips 103, hydraulic pressure is removed, the expanding plate 301 is restored to the original position under the action that the pressing plate 302 presses the elastic part 303, the diameter is restored, the small diameter part of the upper subsidizing sleeve can be smoothly lifted out, fishing is completed, and the problem of fishing in the normal sleeve at the lower part of the subsidizing sleeve is solved.
It should be noted that the terms indicating the directions such as top, bottom, up, down, etc. in the present document are set in the directions of fig. 1 in the specification, and are used for convenience of description only and have no other specific meanings.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.
The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. A canister, comprising:
a canister body;
the guide shoe is arranged at the bottom end of the fishing cylinder main body;
the diameter expanding assembly comprises a diameter expanding plate, a pressing plate and an elastic piece, wherein the guide shoe is provided with an installation groove, the diameter expanding plate is slidably installed in the installation groove along the radial direction of the guide shoe and seals the installation groove to form a closed cavity with the installation groove, the bottom end of the diameter expanding plate extends out of the bottom end of the guide shoe, the pressing plate is fixed on the guide shoe and is positioned on the side of the diameter expanding plate far away from the axial lead of the guide shoe, the elastic piece is arranged between the pressing plate and the diameter expanding plate, and two ends of the elastic piece are respectively connected with the pressing plate and the diameter expanding plate,
the guide shoe is provided with a liquid flow hole which is communicated with a central circulation channel and the closed cavity in the fishing barrel main body;
the ball seat is arranged in the bailer main body, and the bowling falls back on the ball seat, the bowling with the ball seat can seal central circulation channel's bottom opening, the ball seat with the bowling is located the below of liquid flow hole.
2. The overshot of claim 1, characterized in that the diameter enlarging plate is provided with a groove, and the elastic element is arranged in the groove.
3. The canister of claim 1, wherein the outer wall of the enlarged diameter plate is provided with a first seal groove for mounting a first seal ring;
the first sealing ring is sealed with the inner wall of the first sealing groove.
4. The overshot of claim 1, characterized in that the number of the expanding plates is a plurality, and the expanding plates are distributed annularly and uniformly around the axis of the guide shoe;
and/or
The outer wall of the diameter expanding plate is arc-shaped.
5. The canister of claim 3, wherein the ball seat outer wall defines a second sealing groove;
and a second sealing element sealed with the fishing cylinder main body is arranged in the second sealing groove.
6. The overshot of claim 5, wherein a limiting step is provided in the guide shoe which limits the ball seat, the limiting step being provided below the flow hole.
7. The canister of claim 6, wherein the ball seat is suspended within the canister body by the second seal,
after the ball is dropped on the ball seat, the ball seat can be driven to move downwards and is abutted against the limiting step;
or
The ball seat is arranged on the limiting step;
and/or
The ball seat is a cylindrical ball seat.
8. The canister as claimed in any of claims 1-7, wherein the canister body comprises a barrel assembly and a screw slip;
the spiral slip is arranged in the barrel assembly and used for clamping an object to be salvaged;
the guide shoe is arranged at the bottom end of the barrel component.
9. The canister of claim 8, wherein the barrel assembly comprises an upper fitting and a barrel;
the upper joint is used for being connected with a drilling tool;
the top end of the cylinder body is connected with the upper joint, and a sawtooth-shaped internal thread connected with the spiral slip is arranged in the cylinder body.
10. The canister of claim 9, further comprising a snap ring;
the clamping ring is arranged in the cylinder body, is positioned below the internal thread and is used for limiting the spiral slip to move downwards;
the diameter of the sawtooth-shaped internal thread is gradually reduced along the axial lead of the cylinder body from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021509443.0U CN213684048U (en) | 2020-07-27 | 2020-07-27 | Fishing socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021509443.0U CN213684048U (en) | 2020-07-27 | 2020-07-27 | Fishing socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213684048U true CN213684048U (en) | 2021-07-13 |
Family
ID=76743142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021509443.0U Active CN213684048U (en) | 2020-07-27 | 2020-07-27 | Fishing socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213684048U (en) |
-
2020
- 2020-07-27 CN CN202021509443.0U patent/CN213684048U/en active Active
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