CN104929562A - Packer - Google Patents
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- CN104929562A CN104929562A CN201510355424.4A CN201510355424A CN104929562A CN 104929562 A CN104929562 A CN 104929562A CN 201510355424 A CN201510355424 A CN 201510355424A CN 104929562 A CN104929562 A CN 104929562A
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Abstract
The invention provides a packer, and relates to the field of downhole layered oil production tools. The packer aims to achieve multi-setting by entering a well once. According to the mainly adopted technical scheme, the packer comprises a mandrel, a rubber cylinder assembly, a cone, a slips assembly, a lock pin assembly and an unloader, wherein the upper end and the lower end of the mandrel are provided with an upper connector and a lower connector respectively; the mandrel is used for being arranged outside a center pipe in a sleeving mode; the rubber cylinder assembly is connected with the lower portion of the mandrel through the lower connector; the cone, the slips assembly and the lock pin assembly are arranged in the mode of being sequentially away from the rubber cylinder assembly and arranged on the lower portion of the mandrel in a sliding mode; the portion, corresponding to the lock pin assembly, of the lower portion of the mandrel is provided with a bent sliding rail for guiding the sliding direction of the lock pin assembly; both the lower portion of the mandrel and the cone are provided with pressure transmission holes; the unloader comprises a first sub unloader body and a second sub unloader body detachably connected with the first sub unloader body, the first sub unloader body is connected with the upper portion of the mandrel through the upper connector, and the second sub unloader body adjacent to the rubber cylinder assembly is arranged on the upper portion of the mandrel in a sliding mode.
Description
Technical field
The present invention relates to laminated distributor under well oil tool field, particularly relate to a kind of packer.
Background technology
Packer is that one has elastic sealing elements and annular space between the tubing string of packing various sizes whereby and well and between tubing string; and isolated payzone; to control to produce (note) liquid; the downhole tool of protective casing, is widely used in the operations such as the oil well of petroleum industry, gas well, completion.
The work of packer generally comprise set, the step such as grappling and deblocking, setting is sleeve pipe and oil pipe to be formed by the deformation of packing element to cut off.Grappling is in order to packer is fixed on precalculated position.Deblocking is the deformation in order to recover packing element, and then is removed from oil well by packer.
Current packer by hydraulic setting, after pressure break completes, when needs drag to last layer carry out pressure break time, packing element and slips are not easy to regain, easy Ka Jing, thus not easily realize deblocking, and then make one-trip string be difficult to repeatedly set.
Summary of the invention
Main purpose of the present invention is the packer providing a kind of new structure, makes deblocking easy, achieves once to enter well and can complete and repeatedly set.
The object of the invention to solve the technical problems realizes by the following technical solutions:
The invention provides a kind of packer, this packer comprises: up and down two ends are respectively with the mandrel of top sub and lower connector, packing element assembly, cone, slip assemblies and lock pin assembly; Described mandrel is used for being set in outside central tube; Described packing element assembly is fixedly connected with described mandrel bottom by described lower connector, and described packing element assembly is positioned at the top of described mandrel bottom, described top be described mandrel bottom with adjacent one end, described mandrel top; Described cone, described slip assemblies and described lock pin assembly arrange away from described packing element assembly successively and are slidably mounted on described mandrel bottom, and described lock pin assembly is positioned at the bottom of described mandrel bottom, and described bottom is relative with described top;
The position corresponding with described lock pin assembly of described mandrel bottom is provided with the sliding rail for guiding described lock pin component slippage direction, and described sliding rail is warp rail; Described mandrel bottom and described cone are equipped with pressure transmission hole;
Described packer also comprises emptier; The second sub-emptier that described emptier comprises the first sub-emptier and removably connects with described first sub-emptier; Described first sub-emptier is fixedly connected with described mandrel top by described top sub; Described second sub-emptier is slidably mounted on described mandrel top, and described second sub-emptier is adjacent with described packing element assembly.
Foregoing packer, wherein, described emptier also comprises:
Unloading sliding sleeve, inner side and the described second sub-emptier of described unloading sliding sleeve are slidably connected, and the outside of described unloading sliding sleeve is fixedly connected with described top sub;
Wherein, described top sub covers described first sub-emptier and described second sub-emptier.
Foregoing packer, wherein, described emptier also comprises:
Bypass mandrel, described bypass core sleeve is located at the top of described central tube; Described bypass mandrel is fixedly connected with described first sub-emptier with described top sub respectively.
Foregoing packer, wherein, described emptier also comprises:
Centralizer, one end of described centralizer is connected with described second sub-emptier, and the other end is connected with described mandrel.
Foregoing packer, wherein, described packer also comprises:
Positioning component, described positioning component is slidably mounted on described mandrel bottom, and described positioning component is positioned at the bottom of described mandrel bottom, and adjacent with described lock pin assembly.
Foregoing packer, wherein, described positioning component comprises:
Locator adapter sleeve, described locator adapter sleeve is slidably mounted on described mandrel bottom;
Locator, described locator is fixedly connected with the described cover that is located by connecting by screw thread;
Locator guard circle, described locator guard circle is set on described locator.
Foregoing packer, wherein, described packing element assembly comprises:
Packing element mandrel, described packing element mandrel is fixedly connected with described mandrel bottom by described lower connector;
Packing element, described packing element is set on described packing element mandrel.
Foregoing packer, wherein, the quantity of described packing element is at least two; Described packing element assembly also comprises:
Packing element spacer ring, described packing element spacer ring is arranged between two often adjacent described packing elements, and connects described packing element.
Foregoing packer, wherein, described slip assemblies is split-type slips.
Foregoing packer, wherein, described split-type slips comprises:
Slips stop collar, described slips stop collar is slidably mounted on described mandrel;
Slips, described slips is connected with described slips stop collar by slips spring;
Slips shell, described slips casing is located on described slips, and is fixedly connected with described slips stop collar.
Foregoing packer, wherein, described packer also comprises:
Connector, described connector is fixedly connected with described locator adapter sleeve with described slips stop collar respectively.
Foregoing packer, wherein, described lock pin assembly comprises:
Lockpin sleeve, described lockpin sleeve is fixedly connected with described connector;
Lock pin, one end of described lock pin is fixedly connected with described lockpin sleeve, and the other end inserts described sliding rail, and can slide along described sliding rail.
Foregoing packer, wherein, described sliding rail comprises: the first track, the second track, the 3rd track and the 4th track, described first track, described second track, described 3rd track and described 4th orbit connection;
Described first track is identical with the angle of inclination of described 4th track, and described first track is adjacent with described 4th track and described first track is crossing with the sides adjacent of described 4th track;
Described 3rd track is horizontal rail, and the center line of described 3rd track is corresponding with the intersection of described first track and described 4th track;
Described second track is adjacent with described 3rd track and described second track is crossing with the sides adjacent of described 3rd track, and the center line of described second track is corresponding with the opposite side of described 4th track;
Wherein, the center line of the center line of described first track and described 4th track is 0 ~ 90 degree with the angle of the center line of described 3rd track respectively; The angle of the center line of described second track and the center line of described 3rd track is 270 ~ 360 degree.
By technique scheme, structure of the present invention at least has following advantages:
Technical scheme provided by the invention is by being provided with the bending sliding rail for guiding lock pin component slippage direction in the position corresponding with lock pin assembly of mandrel bottom; By being provided with emptier, the second sub-emptier that emptier comprises the first sub-emptier and removably connects with the first sub-emptier, make when lock pin component slippage is to the first track of sliding rail, first sub-emptier is connected with the second sub-emptier, now, the air pressure separation of packing element assembly both sides makes packing element component sealing on casing wall; When lock pin component slippage is to the second track of sliding trace, first sub-emptier separates with the second sub-emptier, now, the air pressure balance of packing element assembly both sides makes packing element assembly and casing wall deblocking, thus the packer that the embodiment of the present invention provides is easy to deblocking, and then realizes one-trip string and can complete and repeatedly set.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of manual, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
The structural representation one of the packer that Fig. 1 provides for the embodiment of the present invention;
The structural representation two of the packer that Fig. 2 provides for the embodiment of the present invention;
The sliding trace of the packer latch-locking assembly that Fig. 3 provides for the embodiment of the present invention launches schematic diagram;
The sectional view of the first sub-emptier of emptier in the packer that Fig. 4 provides for the embodiment of the present invention;
The sectional view of the second sub-emptier of emptier in the packer that Fig. 5 provides for the embodiment of the present invention;
The sectional view of the locator of positioning component in the packer that Fig. 6 provides for the embodiment of the present invention;
The packing element of packing element assembly and the sectional view of packing element spacer ring assembling in the packer that Fig. 7 provides for the embodiment of the present invention;
The sectional view of cone in the packer that Fig. 8 provides for the embodiment of the present invention.
Detailed description of the invention
For further setting forth the present invention for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to its detailed description of the invention of testing counter proposed according to the present invention, structure, feature and effect thereof, be described in detail as follows.In the following description, the not necessarily same embodiment that different " embodiment " or " embodiment " refers to.In addition, special characteristic, structure or feature in one or more embodiment can be combined by any suitable form.
As depicted in figs. 1 and 2, the structural representation of packer that provides of the embodiment of the present invention.A kind of packer of the present embodiment comprises: up and down two ends are respectively with the mandrel 10 of top sub 11 and lower connector 12, packing element assembly 20, cone 30, slip assemblies 40 and lock pin assembly 50.Mandrel 10 for being set in outside central tube, for carrying packing element assembly 20, cone 30, slip assemblies 40, lock pin assembly 50 and emptier 60.Packing element assembly 20 is fixedly connected with mandrel 10 bottom by lower connector 12, for expanding under external force with sealing shroud tube wall.Wherein, packing element assembly 20 is positioned at the top of mandrel 10 bottom, top be mandrel 10 bottom with adjacent one end, mandrel 10 top.Cone 30, slip assemblies 40 and lock pin assembly 50 arrange away from packing element assembly 20 successively and are slidably mounted on mandrel 10 bottom, and lock pin assembly 50 is positioned at the bottom of mandrel 10 bottom, and bottom is relative with top.The position corresponding with lock pin assembly 50 of mandrel 10 bottom is provided with the sliding rail for guiding lock pin assembly 50 glide direction, and sliding rail is warp rail.Mandrel 10 bottom and cone 30 are equipped with pressure transmission hole 31 (as shown in Figure 8), make mandrel 10 and can transmission and air pressure between cone 30 and central tube, with make set or deblocking time realize the pressure balance of mandrel 10 and central tube, thus realize smoothly setting and the work such as deblocking.In order to prevent pressure transmission hole 31 to be subject to the solid blockades such as gravel, pressure transmission hole 31 is covered with filter screen 32 (as depicted in figs. 1 and 2).Wherein, slip assemblies 40 blocks casing wall for strutting under external force.Cone 30 is for applying active force to strut slip assemblies 40 to slip assemblies 40.Lock pin assembly 50 realizes switching tracks for sliding in sliding rail under the effect of external force.
Described packer also comprises emptier 60.The second sub-emptier 62 (as shown in Figure 5) that described emptier 60 comprises the first sub-emptier 61 (as shown in Figure 4) and removably connects with the first sub-emptier 61.First sub-emptier 61 is fixedly connected with mandrel 10 top by top sub 11.Second sub-emptier 62 is slidably mounted on mandrel 10 top, and the second sub-emptier 62 is adjacent with packing element assembly 20.Wherein, the material of the first sub-emptier 61 and the second sub-emptier 62 adopts high strength and corrosion resistant alloy material, and the selection of this material can make the environment of the abundant cope with bad of emptier 60, enhances the application life of packer.When the first sub-emptier 61 and the second sub-emptier 62 separate, gap is there is between the first sub-emptier 61 and the second sub-emptier 62, pressure transmission hole 31 in this gap and mandrel 10 and cone 30 forms passage, packer is made to be the circulation canal opened, thus make the air pressure balance of packing element assembly both sides, cause the pressure suffered by packing element assembly to weaken, and then make packing element assembly 2 and casing wall deblocking.Therefore, the packer construction that the embodiment of the present invention provides is simple, and deblocking is easy, simple to operate.Wherein, the bottom of packer can connect the devices such as water conservancy perforation, cable perforation, can carry out completion pressure break, water blockoff looks for the operation such as leakage.And in actual applications, emptier makes when 10000psi, the unloading force of emptier is maximum only 17.781KN (1814.4Kg), guarantees that central tube normally works in load range.
In the present embodiment, as shown in Figure 3, described sliding rail can comprise: the first track A, the second track B, the 3rd track C and the 4th track D, and the first track A, the second track B, the 3rd track C are communicated with the 4th track D.First track A is identical with the angle of inclination of the 4th track D, and the first track A is adjacent with the 4th track D and the first track A is crossing with the sides adjacent of the 4th track D.3rd track C is horizontal rail, and the center line of the 3rd track C is corresponding with the intersection of the first track A and the 4th track D.Second track B is adjacent with the 3rd track C and the second track B is crossing with the sides adjacent of the 3rd track C, and the center line of the second track B is corresponding with the opposite side of the 4th track D.Wherein, the center line of the center line of the first track A and the 4th track D is 0 ~ 90 degree with the angle of the center line of the 3rd track C respectively; The angle of the center line of the second track B and the center line of the 3rd track C is 270 ~ 360 degree.
In the specific implementation, before the packer embodiment of the present invention provided enters well, lock pin assembly 50 is placed on the first track A of sliding rail.When packer enters well, lock pin assembly 50 enters on the second track B under external force; When packer arrive set position time, by carry central tube, now, lock pin assembly 50 changes on the 3rd track C; When slowly putting down central tube, lock pin assembly 50 enters the 4th track D under external force, now, lock pin assembly 50 promote slips group by move; When slip assemblies 40 move to strutted by cone 30 time, slip assemblies 40 and casing wall block, and now, the second sub-emptier 62 continues to move down, and packing element assembly 20 receives extrusion expansion, props up casing wall to set, thus achieve packer and hang and the effect of packing; When by carry central tube time, lock pin assembly 50 is got back on the first track A, slip assemblies 40 resets, meanwhile, the first sub-emptier 61 moves separate with the second sub-emptier 62, now, there is gap between first sub-emptier 61 and the second sub-emptier 62 makes the pressure at both sides of packing element assembly 20 balance, packing element shrinks, thus makes packing element assembly 20 and casing wall complete deblocking fast, makes deblocking become easy.If desired again set, then repeat above-mentioned steps, thus packer provided by the invention can realize repeatedly setting, greatly reduce duty cycle and cost, improve production efficiency, practicality is higher.
The embodiment of the present invention is by being provided with the bending sliding rail for guiding lock pin component slippage direction in the position corresponding with lock pin assembly of mandrel bottom; By being provided with emptier, the second sub-emptier that emptier comprises the first sub-emptier and removably connects with the first sub-emptier, make when lock pin component slippage is to the first track of sliding rail, first sub-emptier is connected with the second sub-emptier, now, the air pressure separation of packing element assembly both sides makes packing element component sealing on casing wall; When lock pin component slippage is to the second track of sliding trace, first sub-emptier separates with the second sub-emptier, now, the air pressure balance of packing element assembly both sides makes packing element assembly and casing wall deblocking, thus the packer that the embodiment of the present invention provides is easy to deblocking, and then realizes one-trip string and can complete and repeatedly set.
Further, as depicted in figs. 1 and 2, the emptier 60 described in above-described embodiment can also comprise: unloading sliding sleeve 63.Inner side and the second sub-emptier 62 of unloading sliding sleeve 63 are slidably connected, and the outside of unloading sliding sleeve 63 is fixedly connected with top sub 11, unload sliding sleeve 63 for the protection of the second sub-emptier 62, and provide guiding for the second sub-emptier 62.Wherein, top sub 11 covers the first sub-emptier 61 and the second sub-emptier 62.
In the specific implementation, when packer does not set, first sub-emptier 61 and the second sub-emptier 62 are in separated position, there is gap between first sub-emptier 61 and the second sub-emptier 62 makes packer be the circulation canal (as shown in Figure 1) opened, now, slips 42 in packing element in packing element assembly 20 and slips 42 assembly 40 does not stress, and namely packing element and slips 42 are all in the raw, when packer to enter in well and arrives until setting position, on carry central tube and slowly put down, lock pin assembly 50 is made to change to the 4th track D from the first track A, lock pin assembly 50 promotes slips 42 assembly 40 and moves up, until slips 42 is strutted by cone 30, slips 42 is made to block casing wall, the extruding that packing element assembly 20 is subject to cone 30 and emptier 60 afterwards expansion realization sets, now, mandrel 10 moves down to drive the first sub-emptier 61 to move down under gravity, first sub-emptier 61 is displaced downwardly to and unloads the second sub-emptier 62 that sliding sleeve 63 is flexibly connected and contact and connect, namely the first sub-emptier 61 and the second sub-emptier 62 are in closed condition, packer is the passage (as shown in Figure 2) of cutting out, there is pressure differential in what make packing element assembly 20 both sides of packer, thus achieve the effect of packing and suspension.
Further, as depicted in figs. 1 and 2, the emptier 60 described in above-described embodiment can also comprise: bypass mandrel 64.Bypass mandrel 64 is set in the top of central tube.Bypass mandrel 64 is fixedly connected with the first sub-emptier 61 with top sub 11 respectively, prevents blocking for cleaning gravel, guarantees that packer circulation is unimpeded.In order to prevent the second sub-emptier 62 crooked when mandrel 10 slides relatively, the emptier 60 described in above-described embodiment can also comprise: centralizer 65.One end of centralizer 65 is connected with the second sub-emptier 62, and the other end is connected with mandrel 10.
Further, as depicted in figs. 1 and 2, in order to find the position for the treatment of packing accurately, the packer described in above-described embodiment can also comprise: positioning component 70.Positioning component 70 is slidably mounted on mandrel 10 bottom, and positioning component 70 is positioned at the bottom of mandrel 10 bottom, and adjacent with lock pin assembly 50.During concrete enforcement, described positioning component 70 can comprise: locator adapter sleeve 71, locator 72 (as shown in Figure 6), locator guard circle 73.Wherein, locator 72 external diameter is in its natural state greater than the box cupling internal diameter of sleeve pipe.Locator adapter sleeve 71 is slidably mounted on mandrel 10 bottom.Locator 72 is fixedly connected with the cover 71 that is located by connecting by screw thread.Locator guard circle 73 is set on locator 72.
In the present embodiment, locator 72 adopts pawl spring structure.When packer is when entering in well, in the process that locator 72 is transferred, due to locator 72 and casing wall friction, certain change can be there is in the external diameter of locator 72, operating personnel judge according to data such as the suspending weights of locator on bottom surface the degree of depth that locator is transferred, thus reach the object of accurately location, meanwhile, packer can be made to avoid the position at the box cupling place of sleeve pipe.Therefore, without the need to by other instruments with the use of the location realizing packer, grappling is firm, simple to operate be easy to realize.
In the present embodiment, due to locator 72 in the raw under external diameter be greater than the box cupling internal diameter of sleeve pipe, at packer entering in the process in well, locator 72 meeting and casing wall friction, locator 72 can be subject to frictional force upwards, now, central tube continues to move down, then locator can promote lock pin assembly 50, slips 42 assembly 40 move, and makes slips 42 strut to block casing wall, thus realizes the effect of suspension.Meanwhile, packing element assembly 20 can be squeezed and expand, and packing element assembly 20 casing wall is sealed, thus realizes the effect of packing.In actual applications, the error arranged when can make up the operation such as coiled tubing, oil pipe of locator, achieves the object of accurately location.
Further, as shown in Figure 1, Figure 2 and Figure 7, the packing element assembly 20 described in above-described embodiment can comprise: packing element mandrel 21 and packing element 22.Packing element mandrel 21 is fixedly connected with mandrel 10 bottom by lower connector 12.Packing element 22 is set on packing element mandrel 21.In order to strengthen the sealing force between packing element assembly 20 and casing wall, packing element assembly 20 also comprises: packing element spacer ring 23.The quantity of packing element 22 is at least two.Packing element spacer ring 23 is arranged between two often adjacent packing elements 22, and connects packing element 22.In embodiments of the present invention, packing element and packing element spacer ring are fixedly connected into a black box by screw thread.And the setting of packing element spacer ring ensure that the stress equalization of each packing element when setting, each packing element is fully expanded.When packing element expands, each packing element all seals with casing wall, increases the contact area of packing element assembly and casing wall, and the sealing force between packing element assembly and casing wall is increased.Meanwhile, multiple packing element be arranged so that deblocking time packing element assembly there is very strong screen resilience, thus make the contraction of packing element assembly complete.
Further, the slip assemblies 40 described in above-described embodiment can be split-type slips.In invention the present embodiment, adopt split-type slips anchoring mode, can realize restting, not only sit card simple, and slips resilience after unfreezing is good, deblocking is thoroughly reliable.During concrete enforcement, as depicted in figs. 1 and 2, described split-type slips comprises: slips stop collar 41, slips 42 and slips shell 43.Wherein, a side of slips 42 is provided with sawtooth, for blocking casing wall.Slips stop collar 41 is slidably mounted on mandrel 10, for guiding slips 42 relative to the glide direction of mandrel 10.Slips 42 is connected with slips stop collar 41 by slips spring 44, and slips spring 44 is for providing elastic force for slips 42 resets.Slips shell 43 is set on slips 42, and is fixedly connected with slips stop collar 41, for the protection of slips and limit slips strut yardstick, to guarantee that packer enters in well smoothly.
Further, as depicted in figs. 1 and 2, the packer described in above-described embodiment can also comprise: connector 80.Connector 80 is fixedly connected with locator adapter sleeve 71 with slips stop collar 41 respectively.Wherein, the connection of connector 80 and slips stop collar 41 and locator adapter sleeve 71 adopts likes that gram box thread connects, make connector 80 and be connected fastening between slips stop collar 41 and locator adapter sleeve 71, not easily loosen, provide powerful guarantee for packer such as carries out setting at the operation.
Further, as depicted in figs. 1 and 2, the lock pin assembly 50 described in above-described embodiment can comprise: lockpin sleeve 51 and lock pin 52.Lockpin sleeve 51 is fixedly connected with connector 80.Wherein, lockpin sleeve 51 and connector 80 also can adopt and like that a gram box thread is connected.One end of lock pin 52 is fixedly connected with lockpin sleeve 51, and the other end of lock pin 52 inserts sliding rail, and can slide along sliding rail.When under the effect of lock pin assembly 50 in external force, mandrel 10 slides relatively, the lock pin 52 of lock pin assembly 50 slides along sliding rail, when changing to the 4th track D from the first track A, lock pin assembly 50 promotes slip assemblies 40 is moved, make the slips 42 in slip assemblies 40 be strutted to block casing wall by cone 30, thus achieve the effect of packer suspension.
Above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, 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 portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (13)
1. a packer, comprises upper and lower two ends respectively with the mandrel of top sub and lower connector, packing element assembly, cone, slip assemblies and lock pin assembly; Described mandrel is used for being set in outside central tube; Described packing element assembly is fixedly connected with described mandrel bottom by described lower connector, and described packing element assembly is positioned at the top of described mandrel bottom, described top be described mandrel bottom with adjacent one end, described mandrel top; Described cone, described slip assemblies and described lock pin assembly arrange away from described packing element assembly successively and are slidably mounted on described mandrel bottom, and described lock pin assembly is positioned at the bottom of described mandrel bottom, and described bottom is relative with described top;
It is characterized in that, the position corresponding with described lock pin assembly of described mandrel bottom is provided with the sliding rail for guiding described lock pin component slippage direction, and described sliding rail is warp rail; Described mandrel bottom and described cone are equipped with pressure transmission hole;
Described packer also comprises emptier; The second sub-emptier that described emptier comprises the first sub-emptier and removably connects with described first sub-emptier; Described first sub-emptier is fixedly connected with described mandrel top by described top sub; Described second sub-emptier is slidably mounted on described mandrel top, and described second sub-emptier is adjacent with described packing element assembly.
2. packer according to claim 1, is characterized in that, described emptier also comprises:
Unloading sliding sleeve, inner side and the described second sub-emptier of described unloading sliding sleeve are slidably connected, and the outside of described unloading sliding sleeve is fixedly connected with described top sub;
Wherein, described top sub covers described first sub-emptier and described second sub-emptier.
3. packer according to claim 2, is characterized in that, described emptier also comprises:
Bypass mandrel, described bypass core sleeve is located at the top of described central tube; Described bypass mandrel is fixedly connected with described first sub-emptier with described top sub respectively.
4. the packer according to Claims 2 or 3, is characterized in that, described emptier also comprises:
Centralizer, one end of described centralizer is connected with described second sub-emptier, and the other end is connected with described mandrel.
5. packer according to claim 4, is characterized in that, described packer also comprises:
Positioning component, described positioning component is slidably mounted on described mandrel bottom, and described positioning component is positioned at the bottom of described mandrel bottom, and adjacent with described lock pin assembly.
6. packer according to claim 5, is characterized in that, described positioning component comprises:
Locator adapter sleeve, described locator adapter sleeve is slidably mounted on described mandrel bottom;
Locator, described locator is fixedly connected with the described cover that is located by connecting by screw thread;
Locator guard circle, described locator guard circle is set on described locator.
7. packer according to claim 6, is characterized in that, described packing element assembly comprises:
Packing element mandrel, described packing element mandrel is fixedly connected with described mandrel bottom by described lower connector;
Packing element, described packing element is set on described packing element mandrel.
8. packer according to claim 7, is characterized in that, the quantity of described packing element is at least two; Described packing element assembly also comprises:
Packing element spacer ring, described packing element spacer ring is arranged between two often adjacent described packing elements, and connects described packing element.
9. packer according to claim 7, is characterized in that, described slip assemblies is split-type slips.
10. packer according to claim 9, is characterized in that, described split-type slips comprises:
Slips stop collar, described slips stop collar is slidably mounted on described mandrel;
Slips, described slips is connected with described slips stop collar by slips spring;
Slips shell, described slips casing is located on described slips, and is fixedly connected with described slips stop collar.
11. packers according to claim 10, is characterized in that, described packer also comprises:
Connector, described connector is fixedly connected with described locator adapter sleeve with described slips stop collar respectively.
12. packers according to claim 11, is characterized in that, described lock pin assembly comprises:
Lockpin sleeve, described lockpin sleeve is fixedly connected with described connector;
Lock pin, one end of described lock pin is fixedly connected with described lockpin sleeve, and the other end inserts described sliding rail, and can slide along described sliding rail.
13. packers according to claim 12, is characterized in that, described sliding rail comprises: the first track, the second track, the 3rd track and the 4th track, described first track, described second track, described 3rd track and described 4th orbit connection;
Described first track is identical with the angle of inclination of described 4th track, and described first track is adjacent with described 4th track and described first track is crossing with the sides adjacent of described 4th track;
Described 3rd track is horizontal rail, and the center line of described 3rd track is corresponding with the intersection that the 4th track stated by described first rail;
Described second track is adjacent with described 3rd track and described second track is crossing with the adjacent side of described 3rd rail, and the center line of described second track is corresponding with the opposite side of described 4th track;
Wherein, the center line of the center line of described first track and described 4th track is 0 ~ 90 degree with the angle of the described center line of respectively; The center line of described second track and the center line of described 3rd track are 270 ~ 360 degree.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510355424.4A CN104929562B (en) | 2015-06-24 | 2015-06-24 | Packer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510355424.4A CN104929562B (en) | 2015-06-24 | 2015-06-24 | Packer |
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| CN104929562B CN104929562B (en) | 2017-12-22 |
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| CN201510355424.4A Active CN104929562B (en) | 2015-06-24 | 2015-06-24 | Packer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057744A (en) * | 2018-07-10 | 2018-12-21 | 苏州征之魂专利技术服务有限公司 | A kind of structure of Packer for blocking water and combinations thereof disassembly technique |
| CN110984926A (en) * | 2019-12-24 | 2020-04-10 | 辽宁隆立智能科技有限公司 | Intelligent control layered oil production well completion pipe string system and control method thereof |
| CN111395989A (en) * | 2020-04-30 | 2020-07-10 | 大庆昊运橡胶制品有限公司 | Core-pulling-free large-channel high-temperature high-pressure fracturing expansion type rubber cylinder packing tool |
| CN111911101A (en) * | 2020-09-08 | 2020-11-10 | 新疆华油油气工程有限公司 | Steel wire throwing centralizing suspension tool |
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| SU1201487A2 (en) * | 1984-07-13 | 1985-12-30 | Особое конструкторское бюро по проектированию нефтегазодобывающих машин и оборудования | Arrangement for joining pipe string with packer |
| CN2690581Y (en) * | 2004-03-04 | 2005-04-06 | 东营市兆鑫工贸有限责任公司 | Under well operation clips packer |
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| CN202745801U (en) * | 2012-08-28 | 2013-02-20 | 中国石油化工股份有限公司 | Novel testing packer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057744A (en) * | 2018-07-10 | 2018-12-21 | 苏州征之魂专利技术服务有限公司 | A kind of structure of Packer for blocking water and combinations thereof disassembly technique |
| CN110984926A (en) * | 2019-12-24 | 2020-04-10 | 辽宁隆立智能科技有限公司 | Intelligent control layered oil production well completion pipe string system and control method thereof |
| CN110984926B (en) * | 2019-12-24 | 2024-02-02 | 辽宁隆立智能科技有限公司 | Intelligent control layered oil extraction well completion pipe string system and control method thereof |
| CN111395989A (en) * | 2020-04-30 | 2020-07-10 | 大庆昊运橡胶制品有限公司 | Core-pulling-free large-channel high-temperature high-pressure fracturing expansion type rubber cylinder packing tool |
| CN111911101A (en) * | 2020-09-08 | 2020-11-10 | 新疆华油油气工程有限公司 | Steel wire throwing centralizing suspension tool |
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|---|---|
| CN104929562B (en) | 2017-12-22 |
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