CN204804736U - Packer fishing tool - Google Patents
Packer fishing tool Download PDFInfo
- Publication number
- CN204804736U CN204804736U CN201520382172.XU CN201520382172U CN204804736U CN 204804736 U CN204804736 U CN 204804736U CN 201520382172 U CN201520382172 U CN 201520382172U CN 204804736 U CN204804736 U CN 204804736U
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- China
- Prior art keywords
- packer
- outer tube
- fishing tool
- tongue
- interior pipe
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- Expired - Fee Related
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- 238000005553 drilling Methods 0.000 claims abstract description 80
- 239000012530 fluid Substances 0.000 claims abstract description 17
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 210000002445 nipple Anatomy 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model provides a packer fishing tool, include: outer tube, inner tube and connector, outer tube and inner tube are hollow structure, and the inner tube cover is established in the inside and outer tube fixed connection of outer tube, and the inner tube is used for circulating the drilling fluid, offers at least one opening on the outer wall of outer tube towards the first end of outer tube drag for the tongue, drag for the tongue and be used for hooking the packer inner chamber, and the first end of outer tube and the first end of inner tube are connected with the connector, and the connector is used for connecting the drilling rod. The utility model discloses can realize the efficient salvage to the packer.
Description
Technical field
The utility model relates to Oil/gas Well fishing operation, particularly relates to a kind of packer fishing tool.
Background technology
In oil exploitation, use the annular space of packer packing between various sizes tubing string and well and between tubing string.When the seal on packer damages, or when needing to change layer, just need packer to salvage from oil well depths.
In prior art, the main salvaging using die nipple to salvage and bore that mill salvaging two kinds of modes carry out packer.Wherein, die nipple salvages concrete mode: transfer in well by drilling rod by die nipple, after die nipple enters the inner chamber of packer, suitably add the pressure of the drill, rotation drilling tool, the inwall of the salvaging screw thread squeeze packer inner chamber on die nipple carries out thread making, when the thread making between die nipple and packer can bear certain pulling force and moment of torsion, by carry drilling rod packer pulled out.Boring the concrete mode of mill salvaging is: transfer in well by drilling rod by abrading block, when abrading block runs into packer, turn on pump bores mill, by abrading block, packer is worn into fragment, takes ground out of eventually through drilling fluid.
But above-mentioned two kinds of modes have following deficiency: because packer is in active state in well, thread making difficulty when causing die nipple to salvage; When boring mill salvaging, drilling depth is slow.Therefore, above-mentioned two kinds of salvaging efficiency of salvaging mode are not high.
Utility model content
The utility model provides a kind of packer fishing tool, salvages the not high technical problem of efficiency to solve existing salvaging mode.
The utility model, for a kind of packer fishing tool, comprising:
Outer tube, interior pipe and connector.Described outer tube and described interior pipe are hollow structure, and the inside that described interior pipe box is located at described outer tube is fixedly connected with described outer tube, and described interior pipe is for the drilling fluid that circulates.The outer wall of described outer tube offers at least one opening towards described outer tube first end drag for tongue, described in drag for tongue for hooking packer inner chamber.The first end of described outer tube and the first end of described interior pipe are connected with connector, and described connector is used for jointed rod.
Further, in above-mentioned packer fishing tool, the second end of described outer tube is throat structure.
Further, in above-mentioned packer fishing tool, the outer wall of described outer tube is provided with and multiplely drags for tongue.
Further, in above-mentioned packer fishing tool, described multiple drag for tongue on the outer wall of described outer tube helically formula arrange.
Further, in above-mentioned packer fishing tool, described in drag for tongue and described outer tube axis have angle, described angle is greater than 0 degree and is less than or equal to 90 degree.
Further, in above-mentioned packer fishing tool, described angle is between 30 degree to 45 degree.
Further, in above-mentioned packer fishing tool, be fixedly connected with between the second end of described outer tube and the second end of described interior pipe.
Further, in above-mentioned packer fishing tool, described connector is hickey.
Further, in above-mentioned packer fishing tool, the solder joint welded by arranging interval between the second end of described outer tube and the second end of described interior pipe achieves a fixed connection.
The packer fishing tool that the utility model provides, by arranging outer tube and interior pipe is hollow structure, the inside that interior pipe box is located at outer tube is fixedly connected with outer tube, interior pipe is for the drilling fluid that circulates, the outer wall of outer tube offers at least one opening towards outer tube first end drag for tongue, for hooking packer inner chamber, the first end of outer tube and the first end of interior pipe are connected with connector, for jointed rod.When carrying out the fishing of packer, packer fishing tool is connected on drilling rod, transfers in well, in drilling rod and interior pipe, add drilling fluid, judge whether it runs into packer by monitoring pump pressure, when judging that it runs into packer, continue pressurization, the tongue that drags on the outer tube of packer fishing tool is first regained to first end, flick after entering the inner chamber of packer, hook the inner chamber of packer, blocked, realize the high efficiency salvaging to packer.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the front view of the utility model packer fishing tool embodiment one;
Fig. 2 is the front view of the utility model packer fishing tool embodiment two.
Reference numeral:
10,20: packer fishing tool;
11: outer tube;
12: interior pipe;
13: drag for tongue;
14: connector;
15: first end;
16: the second ends;
21: throat structure.
Detailed description of the invention
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not paying the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the front view of the utility model packer fishing tool embodiment one.As shown in Figure 1, the packer fishing tool 10 that the present embodiment provides comprises: outer tube 11, interior pipe 12 and connector 14, and outer tube 11 and interior pipe 12 are hollow structure, and the inside that interior pipe 12 is set in outer tube 11 is fixedly connected with outer tube 11, and interior pipe 12 is for the drilling fluid that circulates.The outer wall of outer tube 11 offers at least one opening towards outer tube 11 first end 15 drag for tongue 13, drag for tongue 13 for hooking packer inner chamber.The first end 15 of outer tube 11 and the first end 15 of interior pipe 12 are connected with connector 14, and connector 14 is for jointed rod.
Concrete, in the packer fishing tool 10 that the present embodiment provides, interior pipe 12 is set in outer tube 11, outer tube 11 is fixedly connected with interior pipe 12, outer tube 11 can be fixed together by connector 14 with the fixed form of interior pipe 12, to ensure to there will not be relative motion between outer tube 11 and interior pipe 12, be convenient to the smooth use of the packer fishing tool 10 that the present embodiment provides.Outer tube 11 and interior pipe 12 are all hollow structures, and interior pipe 12 is for the drilling fluid that circulates.
It should be noted that, drilling fluid can be flushing fluid.
The outer wall of outer tube 11 offers at least one opening towards outer tube 11 first end 15 drag for tongue 13, drag for tongue 13 for hooking packer inner chamber.Drag for tongue 13 can be formed in the following manner: the direction pointing to the second end 16 of outer tube 11 along the first end 15 by outer tube 11, in the outer wall upper shed of outer tube 11, the lower end of opening is connected on outer tube 11, then opening is dragged for tongue 13 to the direction pull-out formation away from outer tube 11 outer wall, which ensure that dragging for tongue 13 has elasticity, is convenient to salvage packer smoothly.The shape of dragging for tongue 13 depends on the shape of opening, as long as ensure to drag for the inner chamber that tongue 13 can hook packer, is blocked, pulls out smoothly.
Optionally, opening can be triangle, then what formed drags for tongue 13 for triangle, and when hooking packer inner chamber, rigidity is better.
The quantity of dragging for tongue 13 is at least one, and be understandable that, the quantity of dragging for tongue 13 is more, then when hooking packer inner chamber, rigidity is better, having higher success rate of salvaging.
The connector 14 that outer tube 11 is connected with the first end 15 of interior pipe 12 is for jointed rod.The packer fishing tool 10 that drilling rod is used for the present embodiment to provide is sent in well.In actual applications, drilling rod can be connected on spot cars, and the packer fishing tool 10 drilling rod and the present embodiment provided by spot cars is sent in well.Certainly, other mode can also be had.
A kind of embodiment that the connector 14 that outer tube 11 is connected with the first end 15 of interior pipe 12 is connected with drilling rod is that connector 14 is helicitic texture, and wherein one end of drilling rod is also helicitic texture, and both can cooperatively interact, and are connected on drilling rod by packer fishing tool 10.In actual job, drilling rod is also coupled together by respective connector by a lot of short drill pipe.Certainly, connector 14 also for having the structure of groove or projection, and can be connected by interface arrangment between drilling rod.
The packer fishing tool that the present embodiment provides less than 10 points two kinds of use scenes:
First kind of way: need the position of the packer salvaged known.
The packer fishing tool 10 provided by the present embodiment is connected on drilling rod by the connector 14 on the first end 15 of outer tube 11 and interior pipe 12, is transferred the position of 30 meters to the top of distance packer by drilling rod.
Packer top is rinsed in turn on pump direct circulation, and namely turn on pump adds drilling fluid in drilling rod, and drilling liquid flow is pipe 12 in drilling rod and packer fishing tool 10, then from the spatial flow between drilling rod and the borehole wall to ground, forms a direct circulation.The object of direct circulation is: be the fouls such as the silt in order to rinse packer top on the one hand, the packer fishing tool 10 that being convenient to the present embodiment provides enters; To monitor pump pressure on the other hand, to judge whether packer fishing tool 10 runs into packer.
Drilling rod is continued to transfer after turn on pump, if pump pressure rises, then illustrate that fishing tool encounters packer, continue lowering drill pipes pressurization, now, the tongue 13 that drags on packer fishing tool 10 is first regained to the first end 15 of packer fishing tool 10, and the direction entering backward outer tube 11 outer wall away from packer fishing tool 10 of inner chamber of packer flicks, hook the inner chamber of packer, blocked.
Continue pressurization, until pressurization tonnage has had obvious downward trend, so that packer fishing tool 10 enters the inner chamber more depths of packer.
Now, above carry drilling rod, whether the weight of observing drilling rod changes.
If the weight of drilling rod increases, then illustrate and salvage successfully, drag for tongue 13 and successfully packer is hooked, above carry drilling rod to ground, take out packer, complete a fishing; If the weight of drilling rod does not increase, then illustrate and salvage unsuccessfully, repeat above-mentioned steps until salvage successfully.
The second way: the Location-Unknown needing the packer junk salvaged.
The packer fishing tool 10 provided by the present embodiment is connected on drilling rod by the connector 14 on the first end 15 of outer tube 11 and interior pipe 12, transfers the packer fishing tool 10 that the present embodiment provides.In the process transferred, namely turn on pump carries out direct circulation.
When pump pressure rises, illustrate that packer fishing tool 10 encounters packer, continue lowering drill pipes pressurization, now, the tongue 13 that drags on packer fishing tool 10 is first regained to the first end 15 of packer fishing tool 10, the direction entering backward outer tube 11 outer wall away from packer fishing tool 10 of inner chamber of packer flicks, and hooks the inner chamber of packer, is blocked.
Continue pressurization, until pressurization tonnage has had obvious downward trend, so that packer fishing tool 10 enters the inner chamber more depths of packer.
Now, above carry drilling rod, whether the weight of observing drilling rod changes.
If the weight of drilling rod increases, then illustrate and salvage successfully, drag for tongue 13 and successfully packer is hooked, above carry drilling rod to ground, take out packer, complete a fishing; If the weight of drilling rod does not increase, then illustrate and salvage unsuccessfully, repeat above-mentioned steps until salvage successfully.
It should be noted that, in above two kinds of modes, monitoring pump pressure, can be realized by the technology of monitoring pump pressure in prior art, repeats no more herein.When packer fishing tool 10 runs into packer, due on packer with sealing devices such as cushion rubbers, be obstructed in the peripheral passage of the drilling fluid in drilling rod and interior pipe 12, so pump pressure can rise.Lowering drill pipes pressurization can pass through spot cars lowering drill pipes, is realized the object of pressurization by the gravity of drilling rod self.Whether whether the weight of observing drilling rod change to be changed by the suspending weight of the packer fishing tool 10 provided at well head observation drilling rod and the present embodiment realizes.
The packer fishing tool that the present embodiment provides, by arranging outer tube and interior pipe is hollow structure, the inside that interior pipe box is located at outer tube is fixedly connected with outer tube, interior pipe is for the drilling fluid that circulates, the outer wall of outer tube offers at least one opening towards outer tube first end drag for tongue, for hooking packer inner chamber, the first end of outer tube and the first end of interior pipe are connected with connector, for jointed rod.When carrying out the fishing of packer, packer fishing tool is connected on drilling rod, transfers in well, in drilling rod and interior pipe, add drilling fluid, judge whether it runs into packer by monitoring pump pressure, when judging that it runs into packer, continue pressurization, the tongue that drags on the outer tube of packer fishing tool is first regained to first end, flick after entering the inner chamber of packer, hook the inner chamber of packer, blocked, realize the high efficiency salvaging to packer.
Fig. 2 is the front view of the utility model packer fishing tool embodiment two.As shown in Figure 2, the packer fishing tool 20 that the present embodiment provides comprises equally: outer tube 11, interior pipe 12 and connector 14, outer tube 11 and interior pipe 12 are hollow structure, and the inside that interior pipe 12 is set in outer tube 11 is fixedly connected with outer tube 11, and interior pipe 12 is for the drilling fluid that circulates.The outer wall of outer tube 11 offers at least one opening towards outer tube 11 first end 15 drag for tongue 13, drag for tongue 13 for hooking packer inner chamber.The first end 15 of outer tube 11 and the first end 15 of interior pipe 12 are connected with connector 14, and connector 14 is for jointed rod.
On the basis of the packer fishing tool provided in embodiment one, the second end 16 of the outer tube 11 of the packer fishing tool 20 that the present embodiment provides is throat structure 21.
Concrete, the internal diameter of the second end 16 of outer tube 11 is less than the second end of outer tube 11 with the internal diameter of upper part formation throat structure 21.
Throat structure 21 is formed at the end of the second end 16 of outer tube 11, and the length of the present embodiment to throat structure 21 does not limit.
It should be noted that, when the second end 16 of outer tube 11 is throat structure 21, the shape that the second end 16 of interior pipe 12 can adapt to the second end 16 of outer tube 11 is similarly throat structure, and certainly, interior pipe 12 also can not be throat structure.In reality, the relative size according to the gradient of throat structure 21 and the diameter of interior pipe 12 and outer tube 11 determines that the second end 16 of interior pipe 12 is the need of being designed to throat structure.
Second end 16 of outer tube 11 can make when carrying out fishing for throat structure 21, and the packer fishing tool 20 that the present embodiment provides can enter in the inner chamber of packer more swimmingly, improves the efficiency of fishing further.
The outer wall of the outer tube 11 of the packer fishing tool 20 that the present embodiment provides is provided with and multiplely drags for tongue 13.Drag for tongue 13 can be formed in the following manner: the direction pointing to the second end 16 of outer tube 11 along the first end 15 by outer tube 11, in the outer wall upper shed of outer tube 11, the lower end of opening is connected on outer tube 11, then opening is dragged for tongue 13 to the direction pull-out formation away from outer tube 11 outer wall, which ensure that dragging for tongue 13 has elasticity, is convenient to salvage packer smoothly.The shape of dragging for tongue 13 depends on the shape of opening, as long as ensure to drag for the inner chamber that tongue 13 can hook packer, is blocked, pulls out smoothly.
Optionally, opening can be triangle, then what formed drags for tongue 13 for triangle, and when hooking packer inner chamber, rigidity is better.
Be understandable that, the quantity of dragging for tongue 13 is more, then when hooking packer inner chamber, rigidity is better, having higher success rate of salvaging.
Optionally, multiple drag for tongue 13 on the outer wall of outer tube 11 helically formula arrange.
Concrete, multiple spiral way of dragging for the arrangement of tongue 13 on outer tube 11 outer wall can be point to the direction clock wise spirals decline mode of the second end 16 of outer tube 11 from the first end 15 of outer tube 11, also can be the direction counter-clockwise helical decline mode pointing to the second end 16 of outer tube 11 from the first end 15 of outer tube 11.
Drag for tongue 13 on the outer wall of outer tube 11 helically formula be arranged so that outer tube 11 offer multiple drag for tongue 13, do not affect the rigidity of outer tube 11 itself.In addition, multiple drag for tongue 13 helically formula be arranged so that when using the packer fishing tool 20 that provides of the present embodiment to carry out packer fishing, having higher success rate of salvaging.
Certainly, the multiple arrangement mode of tongue 13 on the outer wall of outer tube 11 that drag for can also have other forms.Such as be arranged to the arrangement mode of multiple ring-type around outer tube 11.
The tongue 13 that drags for of the packer fishing tool 20 that the present embodiment provides has angle with the axis of outer tube 11, and angle is greater than 0 degree and is less than or equal to 90 degree.
Concrete, the axis of outer tube 11 is the line of the first end 15 of outer tube 11 and the bottom center of the second end 16.Angle between the axis dragging for tongue 13 and outer tube 11 is greater than 0 degree, and this makes to drag for tongue 13 and can eject after entering the inner chamber of packer, hooks packer inner chamber, is blocked, pull out smoothly.Angle between the axis dragging for tongue 13 and outer tube 11 is less than or equal to 90 degree, this make upper carry drilling rod time, drag for tongue 13 and can hook packer inner chamber, and the second end 16 of outer tube 11 can not be bent towards, packer is departed from, salvages unsuccessfully.
It should be noted that, multiple angle dragged between tongue 13 and the axis of outer tube 11 can be all identical, also can be different.
In practice, conveniently manufacture, multiple angle dragged between tongue 13 with outer tube 11 axis is general all equal.
Optionally, the angle between the axis dragging for tongue 13 and outer tube 11 is between 30 degree to 45 degree.
Angle is between 30 degree to 45 degree, and the elastic performance now dragged between tongue 13 and outer tube 11 is more excellent.When the packer fishing tool 20 using the present embodiment to provide carries out fishing, when entering the inner chamber of packer, be convenient to drag for tongue 13 regain to the first end 15 of outer tube 11, after entering the inner chamber of packer, be convenient to drag for tongue 13 eject to the direction of the outer wall away from outer tube 11, when hooking packer inner chamber, rigidity is better, make the success rate of salvaging and efficiency all higher.
Be fixedly connected with between second end 16 of the outer tube 11 of the packer fishing tool 20 that the present embodiment provides and the second end 16 of interior pipe 12.
Concrete, the fixed form between the second end 16 of outer tube 11 and the second end 16 of interior pipe 12 can realize by arranging the solder joint welded at interval between second end 16 and the second end 16 of interior pipe 12 of outer tube 11.
Be fixed between second end 16 and the second end 16 of interior pipe 12 of outer tube 11 and can make the fixing more firm of outer tube 11 and interior pipe 12, relative motion can not occur between the two, be convenient to the smooth use of the packer fishing tool 20 that the present embodiment provides.
The connector 14 that packer fishing tool 20 middle external tube 11 that the present embodiment provides is connected with the first end 15 of interior pipe 12 is hickey.Time helicitic texture makes packer fishing tool 20 to be connected to drilling rod, more convenient operation is quick.
Same, the packer fishing tool 20 that the present embodiment provides also divides following two kinds of use scenes:
First kind of way: need the position of the packer salvaged known.
The packer fishing tool 20 provided by the present embodiment is threaded on drilling rod by the connector 14 on the first end 15 of outer tube 11 and interior pipe 12, by drilling rod, packer fishing tool 20 is transferred the position of 30 meters to the top of distance packer.
Packer top is rinsed in turn on pump direct circulation, and namely turn on pump adds drilling fluid in drilling rod, and drilling liquid flow is pipe 12 in drilling rod and packer fishing tool 20, then from the space between drilling rod and the borehole wall, flow to ground, forms a direct circulation.The object of direct circulation is: be the fouls such as the silt in order to rinse packer top on the one hand, the fishing tool that being convenient to the present embodiment provides enters; To monitor pump pressure on the other hand, to judge whether packer fishing tool 20 runs into packer.
Drilling rod is continued to transfer after turn on pump, if pump pressure rises, then illustrate that fishing tool encounters packer, continue lowering drill pipes pressurization, now, the tongue that drags on packer fishing tool 20 is first regained to the first end 15 of packer fishing tool 20, and the direction entering backward outer tube 11 outer wall away from packer fishing tool 20 of inner chamber of packer flicks, hook the inner chamber of packer, blocked.
Continue pressurization, until pressurization tonnage has had obvious downward trend, so that packer fishing tool 20 enters the inner chamber more depths of packer.
Now, above carry drilling rod, whether the weight of observing drilling rod changes.
If the weight of drilling rod increases, then illustrate and salvage successfully, drag for tongue 13 and successfully packer is hooked, above carry drilling rod to ground, take out packer, complete a fishing; If the weight of drilling rod does not increase, then illustrate and salvage unsuccessfully, repeat above-mentioned steps until salvage successfully.
The second way: the Location-Unknown needing the packer junk salvaged.
The packer fishing tool 20 provided by the present embodiment is threaded on drilling rod by the connector 14 on the first end 15 of outer tube 11 and interior pipe 12, transfers the packer fishing tool 20 that the present embodiment provides.In the process transferred, namely turn on pump carries out direct circulation.
When pump pressure rises, illustrate that packer fishing tool 20 encounters packer, continue lowering drill pipes pressurization, now, the tongue that drags on packer fishing tool 20 is first regained to the first end 15 of packer fishing tool 20, the direction entering backward outer tube 11 outer wall away from packer fishing tool 20 of inner chamber of packer flicks, and hooks the inner chamber of packer, is blocked.
Continue pressurization, until pressurization tonnage has had obvious downward trend, so that packer fishing tool 20 enters the inner chamber more depths of packer.
Now, above carry drilling rod, whether the weight of observing drilling rod changes.
If the weight of drilling rod increases, then illustrate and salvage successfully, drag for tongue 13 and successfully packer is hooked, above carry drilling rod to ground, take out packer, complete a fishing; If the weight of drilling rod does not increase, then illustrate and salvage unsuccessfully, repeat above-mentioned steps until salvage successfully.
It should be noted that, in above two kinds of modes, monitoring pump pressure, can be realized by the technology of monitoring pump pressure in prior art, repeats no more herein.When packer fishing tool 20 runs into packer, due on packer with sealing devices such as cushion rubbers, be obstructed in the peripheral passage of the drilling fluid in drilling rod and interior pipe 12, so pump pressure can rise.Lowering drill pipes pressurization can pass through spot cars lowering drill pipes, is realized the object of pressurization by the gravity of drilling rod self.Whether whether the weight of observing drilling rod change to be changed by the suspending weight of the packer fishing tool 20 provided at well head observation drilling rod and the present embodiment realizes.
Second end of the outer tube of the packer fishing tool that the present embodiment provides is throat structure, and the packer fishing tool that the present embodiment is provided can enter in the inner chamber of packer more swimmingly, improves the efficiency of fishing further; In the present embodiment, the outer wall of outer tube is provided with and multiplely drags for tongue, helically formula is arranged, and makes the rigidity of outer tube unaffected, when the packer fishing tool using the present embodiment to provide carries out packer fishing, and having higher success rate of salvaging; The angle dragging for the axis of tongue and outer tube is between 30 degree to 45 degree, when entering the inner chamber of packer, be convenient to drag for tongue regain to the first end of outer tube, after entering the inner chamber of packer, be convenient to drag for tongue eject to the direction away from outer tube outer wall, when hooking packer inner chamber, rigidity is better, make the success rate of salvaging and efficiency all higher; Be fixed between second end and the second end of interior pipe of outer tube and can make the fixing more firm of outer tube and interior pipe, relative motion can not occur between the two, be convenient to the smooth use of the packer fishing tool that the present embodiment provides.
In actual applications, the well of application is a bite gas injection well.This well inspection tubing string operation rises gets rid of, and former well gas injection tube column meets card, repeatedly activity unfreezing invalid after, after lower cutting cartridge cutting, the residue well casing post that falls is salvaged.In salvaging 7 " MHR packer and with whereabouts well casing post time; use bore mill salvage and use repair drag for one reversible drag for lance process invalid after; " MHR packer and with whereabouts well casing post is once salvaged successfully to use the packer fishing tool fishing that provides of the present embodiment, 7.
The packer fishing tool that the present embodiment provides is applied in succession in similar 3 mouthfuls of wells, drag for and obtain well packer or packer and reach 100% with lower tubular column success rate, comparatively conventional tool process packer or packer and following tubing string fish shorten treatment cycle.Table 1 is that the packer fishing tool of conventional tool and the present embodiment salvages cycle contrast table.Facts have proved the packer fishing tool process process packer that the present embodiment provides or packer and following tubing string fish Be very effective, promotion prospect is wide.
The packer fishing tool of table 1 conventional tool and the present embodiment salvages cycle contrast table
As seen from Table 1, when salvaging packer when the packer fishing tool using the present embodiment to provide, comparatively conventional tool salvages cycle time, individual well average treatment cycle time 55.6%.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (9)
1. a packer fishing tool, is characterized in that, comprising: outer tube, interior pipe and connector;
Described outer tube and described interior pipe are hollow structure, and the inside that described interior pipe box is located at described outer tube is fixedly connected with described outer tube, and described interior pipe is for the drilling fluid that circulates;
The outer wall of described outer tube offers at least one opening towards described outer tube first end drag for tongue, described in drag for tongue for hooking packer inner chamber;
The first end of described outer tube and the first end of described interior pipe are connected with connector, and described connector is used for jointed rod.
2. packer fishing tool according to claim 1, is characterized in that, the second end of described outer tube is throat structure.
3. packer fishing tool according to claim 2, is characterized in that, the outer wall of described outer tube is provided with multiplely drag for tongue.
4. packer fishing tool according to claim 3, is characterized in that, described multiple drag for tongue on the outer wall of described outer tube helically formula arrange.
5. packer fishing tool according to claim 4, is characterized in that, described in drag for tongue and described outer tube axis have angle, described angle is greater than 0 degree and is less than or equal to 90 degree.
6. packer fishing tool according to claim 5, is characterized in that, described angle is between 30 degree to 45 degree.
7. according to the packer fishing tool that claim 6 is stated, it is characterized in that, be fixedly connected with between the second end of described outer tube and the second end of described interior pipe.
8. according to the packer fishing tool that claim 7 is stated, it is characterized in that, described connector is hickey.
9. according to packer fishing tool according to claim 7, it is characterized in that, the solder joint welded by arranging interval between the second end of described outer tube and the second end of described interior pipe achieves a fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520382172.XU CN204804736U (en) | 2015-06-04 | 2015-06-04 | Packer fishing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520382172.XU CN204804736U (en) | 2015-06-04 | 2015-06-04 | Packer fishing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204804736U true CN204804736U (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520382172.XU Expired - Fee Related CN204804736U (en) | 2015-06-04 | 2015-06-04 | Packer fishing tool |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285543A (en) * | 2015-06-04 | 2017-01-04 | 中国石油天然气股份有限公司 | Packer fishing tool |
| CN106907124A (en) * | 2015-12-22 | 2017-06-30 | 中国石油天然气股份有限公司 | Packer center tube and packer |
| CN107345477A (en) * | 2016-05-06 | 2017-11-14 | 中石化石油工程技术服务有限公司 | Flexible fish fishing tool and preparation method thereof |
-
2015
- 2015-06-04 CN CN201520382172.XU patent/CN204804736U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285543A (en) * | 2015-06-04 | 2017-01-04 | 中国石油天然气股份有限公司 | Packer fishing tool |
| CN106907124A (en) * | 2015-12-22 | 2017-06-30 | 中国石油天然气股份有限公司 | Packer center tube and packer |
| CN107345477A (en) * | 2016-05-06 | 2017-11-14 | 中石化石油工程技术服务有限公司 | Flexible fish fishing tool and preparation method thereof |
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