CN203702075U - Hydraulic packer - Google Patents
Hydraulic packer Download PDFInfo
- Publication number
- CN203702075U CN203702075U CN201420018250.3U CN201420018250U CN203702075U CN 203702075 U CN203702075 U CN 203702075U CN 201420018250 U CN201420018250 U CN 201420018250U CN 203702075 U CN203702075 U CN 203702075U
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- Prior art keywords
- giving
- cover
- hydraulic packer
- fishing socket
- slips
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- 238000007906 compression Methods 0.000 claims abstract description 10
- 241001149930 Protura <class> Species 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000004873 anchoring Methods 0.000 abstract 3
- 230000001808 coupling Effects 0.000 description 14
- 238000010168 coupling process Methods 0.000 description 14
- 238000005859 coupling reaction Methods 0.000 description 14
- 238000005553 drilling Methods 0.000 description 11
- 239000000203 mixture Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The utility model discloses a hydraulic packer. The hydraulic packer is used for downhole oil production by layer. The hydraulic packer comprises a releasing gadget, a rubber sleeve sealing mechanism, an anchoring mechanism, a setting mechanism and the like. The anchoring mechanism comprises an upper cone, a lower cone, a slip, a reset spring and a slip cage, wherein the upper end of a T-shaped sleeve of the lower cone of the anchoring mechanism is connected with a conical head, the T-shaped sleeve is sleeved with a compression sleeve, the compression sleeve is provided with a step, the T-shaped sleeve is provided with a step, the steps are used in cooperation with each other, the compression sleeve can axially slide along the outer side of the T-shaped sleeve, and an idler strain spring is arranged at the periphery of the T-shaped sleeve and located between the compression sleeve and the conical head; the releasing gadget is arranged on the upper portion of a hydraulic packer body, and comprises an upper joint, a releasing gadget sleeve, a fishing socket, a releasing gadget piston, a ball seat, a ball and the like. After setting of the hydraulic packer is accomplished, releasing can be carried out through ball throwing, and can also be accomplished through forward rotation of a pipe column. Due to the fact that the idler strain spring is arranged on the lower cone, the conical head can reliably carry out expansion on the slip through thrust of the idler strain spring; meanwhile, due to the fact that the releasing gadget is designed, the problem that a packer does not have enough capacity for bearing lower tension is solved.
Description
Technical field
The downhole packer technical field that the present invention relates to use in oil exploitation, particularly relates to a kind of downhole packer with hydraulic pressure, the two compressions of machinery.
Background technology
In the operation such as completion, oil recovery of field of petroleum exploitation, often separate oil reservoir, Seal Oil cover annular space, hang down-hole string etc. with downhole packer.In order to improve the sealing effectiveness of packer, Chinese Patent Application No. CN201310333524, applying date 2013.08.02, denomination of invention " double acting compression packer and using method thereof ", a kind of first hydraulic setting compression packing element is disclosed, by the pressurize packer of two kinds of packing element compression packing element modes of compression of tubing string, this packer can improve sealing performance and the period of validity of packer really again.But there are two problems in this packer, the one, in the time that the bottom of packer pressure exceedes the lower compressive load of tubing string, packer can move on not firm because of grappling; The 2nd, the load connecting when packer bottom is while being greater than the deblocking load of packer, and packer can be setting in process deblocking automatically.
Summary of the invention
For solving the problems of the technologies described above, invent hydraulic packer, this hydraulic packer has reliable grappling and can bear higher bottom pressure, has designed releasing gadget and can hang more bottom load.
The utility model has adopted following technical scheme:
Hydraulic packer, comprises anchor mechanism, and described anchor mechanism comprises upper cone, lower cone, slips, back-moving spring and slips cage; Slips cage is made up of slip sleeve and the pressure cap being threaded connection; Upper cone and lower cone are arranged on the two ends in slips cage, the interior step of slips cage blocks the outer step of upper cone and lower cone, slips is between upper cone and lower cone, and, the slip insert of slips stretches out from inside to outside from the tapping of slips cage, and back-moving spring is diametrically between slips and slips cage; Lower cone comprises conehead, tensioner spring, T-shaped cover and wedging ring, T-shaped set upper side connects conehead, wedging ring is enclosed within outside T-shaped cover, between wedging ring and T-shaped cover, there is the step cooperatively interacting, wedging ring can slide axially along T-shaped cover outside, between wedging ring and conehead, establishes tensioner spring in T-shaped cover periphery.
Described tensioner spring is cylindroid helical-coil compression spring or butterfly spring.
The top of hydraulic packer is releasing gadget.
Releasing gadget preferred embodiment one, described releasing gadget comprises top connection, the cover of giving up, fishing socket, the piston of giving up, ball seat, ball, give up shear pin and locking shear pin; Fishing socket is enclosed within gives up in cover, and the cover of giving up is connected with exterior central tube, and fishing socket is connected with inner central tube; Top connection is enclosed within the cover of giving up and by the screw thread of giving up and is connected and fixes by locking shear pin; Axial groove is established at the screw thread position of giving up of top connection bottom; The piston of giving up is installed in give up cover and the annular space that forms of fishing socket and seals this annular space, be fixed on outside fishing socket with the shear pin handle of the giving up piston of giving up, and the internal diameter at the described screw thread position of giving up of the external diameter of the piston of giving up and top connection matches; Ball is arranged on the interior step of ball seat and seals this interior step; Ball seat upper end is connected in top connection endoporus, and lower end seals mutually with fishing socket; The pressure transmission hole of giving up is established in the above position of interior step at ball seat on sidewall, and giving up, piston is established hole for back flow with upper/lower positions on the sidewall of fishing socket.
Releasing gadget preferred embodiment two, described releasing gadget comprises top connection, the cover of giving up, fishing socket and locking shear pin; Fishing socket is enclosed within gives up in cover, and the cover of giving up is connected with exterior central tube, and fishing socket is connected with inner central tube; Top connection is connected by the screw thread of giving up with the cover of giving up and fixes by locking shear pin; The internal diameter at the described screw thread position of giving up of the external diameter of fishing socket and top connection matches.
The described screw thread of giving up is left hand thread, and its tooth form is triangle or trapezoidal, and its tooth form angle is 60 °～120 °.The give up preferred tooth form angle of screw thread is 90 °.
Compared with prior art, the beneficial effects of the utility model are, in the time that packer is subject to the lower compressive load of top tubing string, although setting mechanism still has the power of drop-down lower cone, owing to being provided with tensioner spring on lower cone, make conehead because of still tensioner slips reliably of the thrust of tensioner spring.On the other hand, owing to having designed releasing gadget, the pulling force at the two ends up and down that packer bears is on exterior central tube, and the inner central tube of packer and deblocking shear pin do not bear the pulling force of bottom load, has solved packer and has born bottom and draw hypodynamic problem.
Brief description of the drawings
Describe simply the present invention above, next further, at length narrated the present invention with reference to the drawing of describing following specific embodiment of the present invention.These drawings have only been described some typical embodiment of this invention, therefore can not think to limit the scope of the invention.In these drawings:
Fig. 1 be hydraulic packer preferred embodiment one partly cut open structural representation.
Fig. 2 is the partial enlarged drawing of H portion in Fig. 1.
Fig. 3 be top connection partly cut open structural representation.
Fig. 4 is the trapezoidal tooth form schematic diagram of screw thread of giving up.
Fig. 5 is the triangle tooth form schematic diagram of screw thread of giving up.
Fig. 6 be hydraulic packer preferred embodiment two partly cut open structural representation.
Detailed description of the invention
Between each parts of hydraulic packer of the present utility model, as shown in each figure, need the position of sealing to be all provided with sealing ring, as the sealing ring 39 in Fig. 1, sealing ring is no longer described in the following embodiments, and only referring to diagram.
See partly cuing open shown in structural representation and Fig. 2 of Fig. 1 hydraulic packer preferred embodiment one, hydraulic packer comprises releasing gadget 100, packing element sealing mechanism 200, anchor mechanism 300, setting mechanism 400, inner central tube 14, exterior central tube 17 and deblocking shear pin 32.
Inner central tube 14 and exterior central tube 17 are nested together and pass through deblocking shear pin 32 and fix, and inner central tube 14 is connected releasing gadget 100 with exterior central tube 17 upper ends.Exterior central tube 17 outer upper ends are installed packing element sealing mechanism 200, and anchor mechanism 300 is installed at middle part, and setting mechanism 400 is installed in lower end.
Releasing gadget 100 comprises top connection 1, locking shear pin 2, ball 3, ball seat 5, fishing socket 6, the piston 8 of giving up, give up shear pin 9 and the cover 11 of giving up.Fishing socket 6 is enclosed within gives up in cover 11, and the cover 11 of giving up is connected with exterior central tube 17, and fishing socket 6 is connected with inner central tube 14; Top connection 1 is enclosed within the cover 11 of giving up and by the screw thread 7 of giving up and is connected and passes through locking shear pin 2 and fix; The piston 8 of giving up is installed in give up cover 11 and the annular space that forms of fishing socket 6 and seals this annular space, the pistons 8 of giving up are fixed on to fishing socket 6 outsides with the shear pin 9 of giving up, and the internal diameter at described screw thread 7 positions of giving up of the external diameter of the piston 8 of giving up and top connection 1 matches; Ball 3 is arranged on the interior step of ball seat 5 and seals this interior step; Ball seat 5 upper ends are connected in top connection 1 endoporus, and lower end seals mutually with fishing socket 6; The pressure transmission hole 4 of giving up is established in the above position of interior step at ball seat 5 on sidewall, establishes hole for back flow 10 at the piston 8 of giving up with upper/lower positions on the sidewall of fishing socket 6.
Axially, between exterior central tube 17 and fishing socket 6, establish and hang step 12 in cover 11 inner sides of giving up, correspondingly establish positioning step 13 in inner central tube 14 upper periphery, the internal diameter that hangs step 12 is less than the external diameter of positioning step 13, in the time that inner central tube 14 is up, hangs step 12 and can hang on positioning step 13.
Packing element 15 and end ring 16 have formed packing element sealing mechanism 200 jointly, and packing element sealing mechanism 200 is enclosed within the above position of support level 40 of the upper end of exterior central tube 17.Packing element sealing mechanism has various structures form, common are a packing element, two packing element combinations, three packing element combinations.There is baffle ring at the two ends of single packing element or the combination of many packing elements, and general baffle ring may merge with the adjacent steel body component of packer, and just as the two ends of packing element in Fig. 1 15, give up cover 11 and end ring 16 have all played the effect of baffle ring.Many packing element combinations, between each packing element, can be with or without baffle ring.The structure of baffle ring its partly the face of deciding what is right and what is wrong be not limited to square, as can be also bowl-type.
Anchor mechanism 300 is enclosed within outside exterior central tube 17, and anchor mechanism 300 comprises upper cone 19, lower cone 301, slips 38, back-moving spring 20 and slips cage; Slips cage is made up of slip sleeve 18 and the pressure cap 23 being threaded connection; Upper cone 19 and lower cone 301 are arranged on the two ends in slips cage, the interior step of slips cage blocks the outer step of upper cone 19 and lower cone 301, slips 38 is between upper cone 19 and lower cone 301, and, the slip insert of slips 38 stretches out from inside to outside from the tapping of slips cage, and back-moving spring 20 is diametrically between slips 38 and slips cage; Lower cone 301 comprises conehead 21, tensioner spring 22, T-shaped cover 24 and wedging ring 25, T-shaped cover 24 upper ends connect conehead 21, wedging ring 25 is enclosed within outside T-shaped cover 24, between wedging ring 25 and T-shaped cover 24, there is the step cooperatively interacting, wedging ring 25 can slide axially along T-shaped cover 24 outsides, between wedging ring 25 and conehead 21, establishes tensioner spring 22 in T-shaped cover 24 peripheries.It is to be connected with end ring 16 by upper cone 19 that anchor mechanism 300 upper ends connect packing element sealing mechanism 200, and it is to be connected with cylinder sleeve 31 by wedging ring 25 that anchor mechanism 300 lower ends connect setting mechanism 400.
Setting mechanism 400 comprise set piston 26, set shear pin 27, lock dog pressure cap 28, lock dog 29, lower contact 30, cylinder sleeve 31, lock ring 34 and lock ring pressure cap 35.Set the common formation fluid cylinder of piston 26, lower contact 30, cylinder sleeve 31, exterior central tube 17 and inner central tube 14, setting piston 26 is enclosed within the annular space that cylinder sleeve 31 and exterior central tube 17 form and forms sealing, inner central tube 14 lower ends are longer than exterior central tube 17 lower ends, lower contact 30 endoporus are shoulder holes, its large diameter hole part coordinates with exterior central tube 17, and its small diameter bore part coordinates with inner central tube 14 and forms sealing.Establish lock dog hole in exterior central tube 17 bottoms in the above position of deblocking shear pin 32, lock dog 29 is installed in lock dog hole, lock dog 29 is outwards given prominence to exterior central tube 17 diametrically; Lower contact 30 upper ends connect lock dog pressure cap 28, form annular recess in junction, and this annular recess matches and makes lower contact 30 block and be fixed on exterior central tube 17 with the ledge of lock dog 29.Lock ring pressure cap 28 upper ends with set piston 26 and fix by setting shear pin 27.At sealing ring below 39, the above position of lock dog 29, outside establishing, set hole 37 on exterior central tube 17 sidewalls, in establishing, set hole 36 on inner central tube 14 sidewalls.On inner central tube 14 outer walls, establish lock dog release groove 41 with upper/lower positions at lock dog 29.Establish locking screw 33 in lower contact 30 peripheries, correspondingly establish lock ring 34 and match with locking screw 33, lock ring 34 use lock ring pressure caps 35 are arranged on cylinder sleeve 31 lower ends.
Fig. 3 is the structure chart of top connection 1 in Fig. 1, and axial groove is established at screw thread 7 positions of giving up of its underpart, and screw thread 7 positions that make to give up are a point flap, can radial contraction in being subject to footpath outward pressure.Like this, abdicate and give up behind screw thread 7 positions when the piston 8 of giving up is descending, above put on joint 1, the screw thread 7 of giving up can be thrown off to realize and given up.
Fig. 4 is the trapezoidal tooth form schematic diagram of screw thread of giving up.This figure is the tooth form enlarged drawing at screw thread G position of giving up in Fig. 3, and its tooth form is trapezoidal, and trapezoidal thread tooth form angle α is 60 °～120 °, and optimum tooth form angle is 90 °.Equally, Fig. 5 is the triangle tooth form schematic diagram of screw thread of giving up, and this figure is the tooth form enlarged drawing at screw thread G position of giving up in Fig. 3, and its tooth form is triangle, and the tooth form angle α of triangle thread is 60 °～120 °, and optimum tooth form angle is 90 °.
While setting, in packer, beat hydraulic pressure, liquid by interior set hole 36 and set hole 37 outward enter fluid cylinder, setting piston 26 breaks after setting shear pin 27 and goes upward to wedging ring 25 lower ends, then promote cylinder sleeve 31 and wedging ring 25 is together up, first compress tensioner spring 22, compress packing element 15 grappling slips 38 by tensioner spring 22 again, cylinder sleeve drives lock ring 34 up along locking screw 33, in the time shedding hydraulic coupling, the displacement of cylinder sleeve is locked by lock ring 34, thereby keeps compressive state and the anchorage force of anchor mechanism on sleeve pipe of packing element 15.When hydraulic setting power reaches after design load, keeping or not exclusively shedding under the state of hydraulic coupling, press down top connection 1 by sending into tubing string, downforce passes to packing element 15 by give up cover 11 and exterior central tube 17, packing element 15 lower ends are anchored mechanism 300 and support, on the basis of hydraulic setting power, again compress packing element 15, exterior central tube 17 and inner central tube 14, lower contact 30, lock dog 29, lock dog pressure cap 28 are descending together with deblocking shear pin 32, and this line displacement is locked by lock ring 34 again.After the hydraulic coupling setting sheds, tensioner spring 22 can compensate the distance that retreats of lock ring 34, thereby makes hydraulic packer of the present invention bear downforce largelyr.
When installation, hydraulic packer is connected to oil pipe or drilling rod lower end, conventionally, and the following Bonding pressure controller of hydraulic packer.Pressure controller can be restriction choke or ball seat etc., and pressure controller also can combine with other downhole tool, for making the inside and outside pressure reduction that forms of hydraulic packer.This is necessary mounting pipe column combination, can carry out combined string according to need of production in actual applications.
The installation steps of the preferred embodiments of the present invention one hydraulic packer are:
A, with oil pipe or drilling rod, hydraulic packer is sent into downhole designs position, its necessary pipe string combination is: oil pipe or drilling rod+hydraulic packer [containing ball (3)]+pressure controller;
In b, raising tubing string, hydraulic coupling reaches the design load of hydraulic packer setting force;
Hydraulic coupling in c, maintenance or reduction tubing string, but should ensure that the hydraulic coupling in tubing string is greater than the hydraulic coupling in oil jacket annular space;
D, transfer and send into tubing string and load mechanical force 50kN～250kN to hydraulic packer from well head;
E, shed the hydraulic coupling in tubing string.
F, from pitching (3) in oil pipe or drilling rod, and ball (3) is dropped on ball seat (5);
In g, raising tubing string, hydraulic coupling reaches the design load of the shear pin of giving up (9);
H, on carry oil pipe or drilling rod is taken top connection (1), ball (3) and ball seat (5) out of, complete and give up;
Or, use following steps alternative steps f～h:
I, on carry oil pipe or drilling rod dangles to former, the dextrorotation tubing string screw thread (7) that makes to give up screws out;
J, on carry oil pipe or drilling rod is taken top connection (1) and ball seat (5) out of, complete and give up.
That sees Fig. 6 hydraulic packer preferred embodiment two partly cuts open structural representation.Preferred embodiment two is only releasing gadget 100 with the difference of preferred embodiment one.Described releasing gadget 100 comprises top connection 1, the cover 11 of giving up, fishing socket 6 and locking shear pin 2; Fishing socket 6 is enclosed within gives up in cover 11, and the cover 11 of giving up is connected with exterior central tube 17, and fishing socket 6 is connected with inner central tube 14; Top connection 1 is connected by the screw thread 7 of giving up with the cover 11 of giving up and is fixing by locking shear pin 2; The internal diameter at described screw thread 7 positions of giving up of the external diameter of fishing socket 6 and top connection 1 matches.
The mounting method of preferred embodiment two hydraulic packers, comprises the following steps:
A, with oil pipe or drilling rod, hydraulic packer is sent into downhole designs position, its necessary pipe string combination is: oil pipe or drilling rod+hydraulic packer;
In b, raising tubing string, hydraulic coupling reaches the design load of hydraulic packer setting force;
Hydraulic coupling in c, maintenance or reduction tubing string, but should ensure that the hydraulic coupling in tubing string is greater than the hydraulic coupling in oil jacket annular space;
D, transfer and send into tubing string and load mechanical force 50kN～250kN to hydraulic packer from well head;
E, shed the hydraulic coupling in tubing string.
F, on carry oil pipe or drilling rod dangles to former, the dextrorotation tubing string screw thread (7) that makes to give up screws out;
G, on carry oil pipe or drilling rod is taken top connection (1) out of, complete and give up.
In the installation steps of the hydraulic packer of above preferred embodiment one and preferred embodiment two, described loading mechanical force is different for the packer of different size, universal law is that the needed loading mechanical force of more large-sized packer is larger, can be from 50kN～250kN not etc., certainly the required loading mechanical force of, greater or lesser packer also can break through this scope.For being applied to 139.7mm(5
1/
2the loading mechanical force of the packer of ") sleeve pipe can be 70kN～120kN; Loading mechanical force for the packer of the ") sleeve pipe that is applied to 177.8mm(7 can be 80kN～150kN.
Embodiment as herein described is only exemplary embodiments, but is not limited only to these embodiment, and those skilled in the art can make amendment under not departing from spirit of the present invention and enlightening.May there is a lot of changes, combination and amendment in scheme disclosed herein; and all within the scope of the invention, therefore, protection domain is not limited only to explanation above; but define according to claim, protection domain comprises all equivalents of the target of claim.
Claims (7)
1. hydraulic packer, comprises anchor mechanism (300), and described anchor mechanism (300) comprises upper cone (19), lower cone (301), slips (38), back-moving spring (20) and slips cage, slips cage is made up of slip sleeve (18) and the pressure cap (23) that is threaded connection, upper cone (19) and lower cone (301) are arranged on the two ends in slips cage, the interior step of slips cage blocks the outer step of upper cone (19) and lower cone (301), slips (38) is positioned between upper cone (19) and lower cone (301), and, the slip insert of slips (38) stretches out from inside to outside from the tapping of slips cage, back-moving spring (20) is positioned between slips (38) and slips cage diametrically, it is characterized in that, lower cone (301) comprises conehead (21), tensioner spring (22), T-shaped cover (24) and wedging ring (25), T-shaped cover (24) upper end connects conehead (21), wedging ring (25) is enclosed within outside T-shaped cover (24), between wedging ring (25) and T-shaped cover (24), there is the step cooperatively interacting, wedging ring (25) can slide axially along T-shaped cover (24) outside, between wedging ring (25) and conehead (21), establish tensioner spring (22) in T-shaped cover (24) periphery.
2. hydraulic packer according to claim 1, is characterized in that, described tensioner spring (22) is cylindroid helical-coil compression spring or butterfly spring.
3. hydraulic packer according to claim 1, is characterized in that, the top of hydraulic packer is releasing gadget (100).
4. hydraulic packer according to claim 3, it is characterized in that, described releasing gadget (100) comprises top connection (1), the cover (11) of giving up, fishing socket (6), the piston of giving up (8), ball seat (5), ball (3), the shear pin of giving up (9) and locking shear pin (2); Fishing socket (6) is enclosed within gives up in cover (11), and the cover (11) of giving up is connected with exterior central tube (17), and fishing socket (6) is connected with inner central tube (14); Top connection (1) is enclosed within the cover (11) of giving up and by the screw thread of giving up (7) and is connected and passes through locking shear pin (2) and fix; Axial groove is established at the screw thread of giving up (7) position of top connection (1) bottom; The piston (8) of giving up is installed in the annular space that give up cover (11) and fishing socket (6) form and seals this annular space, the piston of giving up (8) is fixed on to fishing socket (6) outside with the shear pin of giving up (9), and the internal diameter at the described screw thread of giving up (7) position of the external diameter of the piston of giving up (8) and top connection (1) matches; Ball (3) is arranged on the interior step of ball seat (5) and seals this interior step; Ball seat (5) upper end is connected in top connection (1) endoporus, and lower end seals mutually with fishing socket (6); The pressure transmission hole of giving up (4) is established in the above position of interior step at ball seat (5) on sidewall, establishes hole for back flow (10) at the piston of giving up (8) with upper/lower positions on the sidewall of fishing socket (6).
5. hydraulic packer according to claim 3, is characterized in that, described releasing gadget (100) comprises top connection (1), the cover (11) of giving up, fishing socket (6) and locking shear pin (2); Fishing socket (6) is enclosed within gives up in cover (11), and the cover (11) of giving up is connected with exterior central tube (17), and fishing socket (6) is connected with inner central tube (14); Top connection (1) is connected by the screw thread of giving up (7) with the cover (11) of giving up and is fixing by locking shear pin (2); The internal diameter at the described screw thread of giving up (7) position of the external diameter of fishing socket (6) and top connection (1) matches.
6. according to the hydraulic packer described in claim 4 or 5, it is characterized in that, the described screw thread of giving up (7) is left hand thread, and its tooth form is triangle or trapezoidal, and its tooth form angle is 60 °～120 °.
7. hydraulic packer according to claim 6, is characterized in that, the tooth form angle of the described screw thread of giving up (7) is 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420018250.3U CN203702075U (en) | 2014-01-13 | 2014-01-13 | Hydraulic packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420018250.3U CN203702075U (en) | 2014-01-13 | 2014-01-13 | Hydraulic packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203702075U true CN203702075U (en) | 2014-07-09 |
Family
ID=51052531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420018250.3U Withdrawn - After Issue CN203702075U (en) | 2014-01-13 | 2014-01-13 | Hydraulic packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203702075U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726804A (en) * | 2014-01-13 | 2014-04-16 | 中国石油化工股份有限公司 | Hydraulic packer and mounting method thereof |
| CN104500015A (en) * | 2014-10-21 | 2015-04-08 | 中国石油集团川庆钻探工程有限公司 | Oil-gas well used controllable set packer for multistage acid fracturing |
| CN105840126A (en) * | 2016-06-21 | 2016-08-10 | 荆州市赛瑞能源技术有限公司 | Linked-release hanger delivery tool |
| CN106761541A (en) * | 2017-03-28 | 2017-05-31 | 中国石油大学(北京) | A kind of Hydraulic Anchorage sealing device |
| CN115182699A (en) * | 2022-07-29 | 2022-10-14 | 齐齐哈尔亚盛机械制造有限公司 | Packer |
-
2014
- 2014-01-13 CN CN201420018250.3U patent/CN203702075U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726804A (en) * | 2014-01-13 | 2014-04-16 | 中国石油化工股份有限公司 | Hydraulic packer and mounting method thereof |
| CN103726804B (en) * | 2014-01-13 | 2016-03-02 | 中国石油化工股份有限公司 | Hydraulic packer and mounting method thereof |
| CN104500015A (en) * | 2014-10-21 | 2015-04-08 | 中国石油集团川庆钻探工程有限公司 | Oil-gas well used controllable set packer for multistage acid fracturing |
| CN104500015B (en) * | 2014-10-21 | 2017-04-05 | 中国石油集团川庆钻探工程有限公司 | Oil/gas Well is acidified controllable set packer with staged fracturing |
| CN105840126A (en) * | 2016-06-21 | 2016-08-10 | 荆州市赛瑞能源技术有限公司 | Linked-release hanger delivery tool |
| CN106761541A (en) * | 2017-03-28 | 2017-05-31 | 中国石油大学(北京) | A kind of Hydraulic Anchorage sealing device |
| CN115182699A (en) * | 2022-07-29 | 2022-10-14 | 齐齐哈尔亚盛机械制造有限公司 | Packer |
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