CN208220719U - Ultradeep well seperated layer water injection open hole packer - Google Patents
Ultradeep well seperated layer water injection open hole packer Download PDFInfo
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- CN208220719U CN208220719U CN201820760477.3U CN201820760477U CN208220719U CN 208220719 U CN208220719 U CN 208220719U CN 201820760477 U CN201820760477 U CN 201820760477U CN 208220719 U CN208220719 U CN 208220719U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 238000002347 injection Methods 0.000 title claims abstract description 35
- 239000007924 injection Substances 0.000 title claims abstract description 35
- 238000012856 packing Methods 0.000 claims description 57
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000001788 irregular Effects 0.000 abstract description 5
- 230000002028 premature Effects 0.000 abstract description 4
- 239000003129 oil well Substances 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008398 formation water Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a kind of ultradeep well seperated layer water injection open hole packers, including central tube, top connection and lower contact, the top connection is connected on the end of the first end of the central tube, the lower contact is connected on the end of the second end of the central tube, maximum outside diameter size of the maximum outside diameter of the lower contact having a size of the packer, also, the front end of the lower contact has into well guide frame, which is oriented to when being used for the packer tripping in oil/gas well.The ultradeep well seperated layer water injection open hole packer is easy to use efficiently, when can avoid into well premature setting and to be easy out, adaptable to the irregular shape of Open-Hole Section, and can be realized and be filled the water to the high-efficiency layered of oil well.
Description
Technical field
The utility model relates to oil exploration equipment technical fields more particularly to a kind of ultradeep well seperated layer water injection to be sealed with naked eye
Every device.
Background technique
Ordovician Reservoir of Tahe Oilfield is different from east sandstone waterflooding reservoir, has the spy of " one deep three high one is different "
Point, that is, burying depth, temperature height, viscosity of crude height, formation water salinity height, Reservoir type is fracture-cavity type carbonate reservoir.Oil
Deep 5500 ± m in layer, 130 DEG C of formation temperature, original formation pressure 60Mpa, original formation pressure coefficient is 1.12.The type
Oil reservoir generally uses barefoot completion, more demanding to main tool packer during carrying out seperated layer water injection test, needs to have
Have that heatproof is high, pressure-bearing is high, leakproofness is strong, it is reliable to set, stops the features such as note does not unseal.
Early period, system in Tahe Oilfield carried out 2 well secondary clearings water filling field test, using conventional type K341 packer, type K341
Packer is not strong to coarse, irregular open hole wall adaptability, go into the well during during damage, tripping in by shaft bottom negative pressure or
Process of going into the well liquid hammer packing element is expanded in advance, scratches packing element, reflects that the comprehensive performance of packer is less reliable.7 " in casing
Operating pressure can reach 35MPa, but substantially reduce (≤10MPa) in the barefoot interval of limestone property.Cause water injection well in oil fields not
It can effectively fill the water, the requirement of oil field efficient water injection exploitation is not achieved.
Utility model content
In view of this, the present invention provides a kind of ultradeep well seperated layer water injections that can be realized to oil well efficient water injection with naked
Eye packer, to solve problems of the prior art.
According to the utility model, provide a kind of ultradeep well seperated layer water injection open hole packer, including central tube, top connection and
Lower contact, the top connection are connected on the end of the first end of the central tube, and the lower contact is connected to the central tube
Second end end on, the maximum outside diameter of the lower contact having a size of the maximum outside diameter size of the packer,
Also, the front end of the lower contact has into well guide frame, which is used for the packer tripping in oil
It is oriented to when gas well.
It preferably, further include packing element, packing element is sheathed on the second end of the central tube,
Wherein, the packing element is equipped with more steel bands, is interrupted setting, institute on the axial direction of packing element between more steel bands
It states and forms toroidal cavity between packing element and the central tube.
Preferably, further include connection outer cylinder, set valve piston, set check valve and packing element on outer cylinder, the connection outer cylinder
First end can unseal and connect with the top connection,
The second end of the connection outer cylinder is equipped with annular groove, is formed between the annular groove and the periphery wall of the central tube
It is described to set valve piston to be slidably set to the annular piston intracavitary for accommodating the annular piston chamber for setting valve piston,
The check valve that sets is arranged and is fixed on the central tube, and the second end of the connection outer cylinder is arranged and connects
In the outside of the first end for setting check valve, the first end of outer cylinder is arranged and is connected to described set unidirectionally on the packing element
The second end of valve, wherein it is offered on the central tube and sets inlet opening, the inner cavity of the central tube and the annular piston chamber
Between through described set inlet opening connection,
Connectivity slot is offered on the inner wall for setting valve piston, the connectivity slot sets the second end of valve piston described in
End face extends to pre-determined distance towards first end, sets inlet opening company described in inner cavity warp of the connectivity slot with the central tube
It is logical.
Preferably, the check valve that sets includes lock-on connection, taper valve core and diversion pipe,
The first hole and the second hole, first hole are successively offered along the axis direction of central tube on the lock-on connection
It communicating with each other with the second hole and runs through entire lock-on connection, the diameter in first hole is greater than the diameter in the second hole, and described first
Hole and the second hole form step pore structure, wherein and first hole sets the direction of valve piston described in,
The taper valve core includes conical head and the hollow slide bar that connect with the conical head, and the hollow slide bar can be slided
Dynamic to be set in second hole, the conical head is located in first hole, and spring, the bullet are arranged on the hollow slide bar
One end of spring is connected on the step surface of the stepped hole, and the diversion pipe is inserted in first hole, the diversion pipe court
To pre-determined distance setting is spaced between the end face and the step surface of the step surface, the sliding space of the conical head is formed,
The end face of the diversion pipe towards the step surface is connected on the head of the conical head,
Wherein, the diversion pipe is connected to the annular piston chamber, and multiple through flow holes are offered on the conical head, described
Through flow hole is connected to the hollow slide bar and the sliding space, and the annular between second hole and the packing element and central tube is empty
Chamber connection.
Preferably, the first pin hole, the second pin are successively arranged along its first end to second end on the connection outer cylinder
Hole and third pin hole,
Shop bolt is inserted in first pin hole, the shop bolt penetrates in the outer wall of the top connection, from
And realize the connection of connection outer cylinder and the top connection,
Axially extending telescopic chute section is offered in the top connection, is inserted with deblocking pin in second pin hole,
The end head of the deblocking pin protrudes into the telescopic chute section,
It is inserted in the third pin hole and sets pin, the pin that sets penetrates the outer wall for setting valve piston
It is interior.
Preferably, the shear strength of the deblocking pin is greater than the shear strength of the shop bolt.
It preferably, further include outer cylinder under air supported head and packing element, the air supported head is arranged and is connected on the central tube, institute
It states air supported head and is located at side of the packing element towards lower contact, the second end of outer cylinder is connected to the air supported head under the packing element
On, first end is arranged and is connected to the second end of the packing element.
Preferably, inner groovy is offered on the internal perisporium of the air supported head, on the periphery wall of the second end of the central tube
Lower part gas pressure relief slot is offered, for the lower part gas pressure relief slot between the air supported head and lower contact, the central tube is relatively described
When air supported head slides, the lower part gas pressure relief slot is at least partly overlapped with the inner groovy, to realize the pressure release to packing element and inside contract.
Preferably, the guide frame is the structure being sequentially reduced from diameter.
Preferably, the packing element is intermediate structure thick, both ends are thin, and centre is equipped with protrusion.
Ultradeep well seperated layer water injection provided by the utility model is had the following beneficial effects: with open hole packer
1, when setting, the top connection with righting function contacts the borehole wall, avoids premature setting, while guide head inclined-plane knot
Structure can be relieved tool caused by well bottom ch ips accumulation and act difficulty；
2, after setting, the steel band in packing element both can guarantee packing element intensity, and it is empty that discontinuous structure forms biggish deformation
Between, it is adaptable for the irregular shape of Open-Hole Section；
3, when seperated layer water injection, central tube can have certain stroke with tubing string in telescopic chute section, will not unseal in advance.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar
Element or part are generally identified by similar appended drawing reference.In attached drawing, each element or part might not be according to actual ratios
It draws.
Fig. 1 is shown to be illustrated according to the connector of the ultradeep well seperated layer water injection open hole packer of the utility model embodiment
Figure.
Fig. 2 shows A sections in Fig. 1 of structural schematic diagrams.
Fig. 3 shows B sections in Fig. 1 of structural schematic diagram.
Fig. 4 shows C sections in Fig. 1 of structural schematic diagram.
Fig. 5 shows D sections in Fig. 1 of structural schematic diagram.
In figure: top connection 1, shop bolt 2, deblocking pin 3, telescopic chute section 4, central tube 5, connection outer cylinder 6, annular groove
601, through-hole 602, set pin 7, set valve piston 8, connectivity slot 81, set inlet opening 9, lock-on connection 101, taper valve core
102, diversion pipe 103, spring 104, outer cylinder 12 on packing element, packing element 13, protrusion 131, steel band 14, air supported head 15, lower contact 16,
Outer cylinder 18 under lower part gas pressure relief slot 17, packing element.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solutions of the utility model.Following embodiment is only
For clearly illustrating the technical solution of the utility model, therefore it is only used as example, and it is originally practical to cannot be used as a limitation limitation
Novel protection scope.
As shown in Figures 1 to 5, the utility model provides a kind of ultradeep well seperated layer water injection open hole packer, in order to this
Ultradeep well seperated layer water injection carries out more clear explanation in detail with open hole packer, by the ultradeep well seperated layer water injection in Fig. 1 with naked
Direction of the eye packer axially from top connection to lower contact is divided into tetra- sections of A, B, C, D.The ultradeep well seperated layer water injection is with naked
Eye packer includes central tube 5, top connection 1 and lower contact 16, and top connection 1 is connected on the end of the first end of central tube 5,
Lower contact 16 is connected on the end of the second end of central tube 5, and the maximum outside diameter of lower contact 16 is having a size of the maximum of the packer
Outer diameter.Also, the front end of lower contact 16 has into well guide frame, which is used for the packer tripping in oil gas
It is oriented to when well.In the embodiment, top connection 1 and lower contact 16 are connected through a screw thread with central tube 5 respectively.Guide frame
For the structure being sequentially reduced from diameter, so that lower contact 16 has centralizing function during tool tripping in.
Further, which further includes packing element 13, and packing element 13 is sheathed on the second end of central tube 5.Wherein, glue
Cylinder 13 is equipped with more steel bands 14, is interrupted setting, packing element 13 and center on the axial direction of packing element 13 between more steel bands 14
Toroidal cavity is formed between pipe 5.Packing element 13 is intermediate structure thick, both ends are thin, and centre is equipped with protrusion 131.
The open hole packer further includes connection outer cylinder 6, sets valve piston 8, sets outer cylinder 12 on check valve and packing element, is connected
The first end of outer cylinder 6 can be unsealed with top connection 1 and be connect.The second end for connecting outer cylinder 6 is equipped with annular groove 601, and annular groove 601 is in
It is formed between the periphery wall of heart pipe 5 for accommodating the annular piston chamber for setting valve piston 8, sets valve piston 8 and be slidably set to ring
In shape plunger shaft.The through-hole 602 that perforation to annular groove 601 is offered on the outer wall of outer cylinder 6 is connected, for annular groove 601 and outside
The fluid in portion circulates.It sets check valve to be arranged and be fixed on central tube 5, the second end of connection outer cylinder 6 is arranged and is connected to seat
The outside of the first end of check valve is sealed, the first end of outer cylinder 12 is arranged and is connected to the second end for setting check valve on packing element,
In, it is offered on central tube 5 and sets inlet opening 9, the company of inlet opening 9 is set between the inner cavity and annular piston chamber of central tube 5
It is logical.It sets and offers connectivity slot 81 on the inner wall of valve piston 8, connectivity slot 81 is from the second end end face of valve piston 8 is set towards the
One end extends to pre-determined distance, and connectivity slot 81 is set inlet opening 9 with the inner cavity of central tube 5 and is connected to.Set the of valve piston 8
One end, which refers to, sets one end that valve piston 8 is abutted against top connection 1, and the opposite other end is second end.
Setting check valve includes lock-on connection 101, taper valve core 102 and diversion pipe 103, on lock-on connection 101 in
The axis direction of heart pipe 5 successively offers the first hole and the second hole, and the first hole and the second hole communicate with each other and run through entire locking
Connector 101, the diameter in the first hole are greater than the diameter in the second hole, and the first hole and the second hole form step pore structure.Wherein, the first hole
Towards the direction for setting valve piston 8.Taper valve core 102 includes conical head and the hollow slide bar connecting with conical head, hollow cunning
Bar is slidably set in the second hole, and conical head is located in the first hole, is arranged flexible on hollow slide bar, and one end of spring 104 is supported
It is connected on the step surface of stepped hole, diversion pipe 103 is inserted in the first hole, end face and step of the diversion pipe 103 towards step surface
It is spaced pre-determined distance setting between face, forms the sliding space of conical head, the end face of diversion pipe 103 towards step surface is connected to cone
On the head of forming head.
Wherein, diversion pipe 103 is connected to annular piston chamber, and multiple through flow holes are offered on conical head, and through flow hole connection is empty
Heart slide bar and sliding space, the toroidal cavity between the second hole and packing element 13 and central tube 5 are connected to.In the embodiment, connection is outer
The first pin hole, the second pin hole and third pin hole are successively arranged along its first end to second end on cylinder 6.First pin hole
It is inside inserted with shop bolt 2, shop bolt 2 penetrates in the outer wall of top connection 1, to realize the company of connection outer cylinder 6 and top connection 1
It connects.Axially extending telescopic chute section 4 is offered in top connection 1, and deblocking pin 3 is inserted in the second pin hole, deblocking pin 3
End head protrudes into telescopic chute section 4.It is inserted in third pin hole and sets pin 7, set pin 7 and penetrate and set valve piston 8
In outer wall.The shear strength for unsealing pin 3 is greater than the shear strength of shop bolt 2.
Further, which further includes outer cylinder 18 under air supported head 15 and packing element, and air supported head 15 is arranged and connects
In on central tube 5, air supported head 15 is located at packing element 13 towards the side of lower contact 16, and the second end of outer cylinder 18 is connected to floating under packing element
On dynamic head 15, first end is arranged and is connected to the second end of packing element 13.Inner groovy is offered on the internal perisporium of air supported head 15, in
Lower part gas pressure relief slot 17 is offered on the periphery wall of the second end of heart pipe 5, lower part gas pressure relief slot 17 is located at air supported head 15 and lower contact 16
Between, when 5 Relative Floating head 15 of central tube slides, lower part gas pressure relief slot 17 is at least partly overlapped with inner groovy, to realize to packing element
It 13 pressure release and inside contracts.
In order to keep the leakproofness between each connecting component, connects between outer cylinder 6 and the faying face of central tube 5, sets
Faying face between valve piston 8 and central tube 5 and connection outer cylinder 6, the faying face between lock-on connection 101 and central tube 5,
Faying face, diversion pipe 103 on lock-on connection 101 and connection outer cylinder 6 and packing element between outer cylinder 12 and the knot between the first hole
Faying face between conjunction face, air supported head 15 and central tube 5 is equipped with sealing ring, thus anti-impervious liquid, and formed in corresponding site
Airtight chamber.
It is fashionable under packer, since the outer diameter of lower contact 16 is greater than the outer diameter of air supported head 15, packing element 13, when the contact borehole wall
When, 16 guide frame of lower contact first contacts, and power can be applied in lower contact 16, avoids premature setting, while guide head inclined-plane
Structure can be relieved tool caused by well bottom ch ips accumulation and act difficulty.
When water filling, injection water sets inlet opening 9 through central tube 5 and enters in connectivity slot 81, and promotion sets valve piston 8 and cuts seat
After offset nail 7, injection water set inlet sequentially enter connecting hole between annular groove 601, annular groove 601 and the first hole,
Taper valve core 102 is pushed in first hole open, so that injection water enters the annular sky between central tube 5 and packing element 13 from central tube 5
It is intracavitary, oil jacket annulus is sealed after expanding packing element 13.When stopping note, taper valve core 102 resets under the effect of spring 104, packing element 13
Set stabilization.Steel band 14 in packing element 13 both can guarantee 13 intensity of packing element, it is made to meet water injection pressure, discontinuous structure shape
It is adaptable for the irregular shape of Open-Hole Section at biggish deformation space, leakproofness can be improved.
When seperated layer water injection, 5500 meters or so length string creep deformations are serious, and top connection 1 is by the excessive cutting positioning pin of pulling force
After nail 2, central tube 5 can have certain stroke with tubing string in telescopic chute section 4, will not unseal at once.
When deblocking, upper lifting pipe post reaches deblocking pin 3 and unseals power, cuts deblocking pin 3, central tube 5 is gone upward to down
Portion's gas pressure relief slot 17 is contacted with air supported head 15, sets space and annular space in connection packing element 13, restores 13 pressure release of packing element, to realize
Deblocking.The shear strength of deblocking pin 3 is greater than the shear strength of shop bolt 2.
Ultradeep well seperated layer water injection in the application is had the following beneficial effects: with open hole packer
1, when setting, the top connection 1 with righting function contacts the borehole wall, avoids premature setting, while guide head inclined-plane
Structure can be relieved tool caused by well bottom ch ips accumulation and act difficulty；
2, after setting, the steel band 14 in packing element 13 both can guarantee that 13 intensity of packing element, discontinuous structure formd biggish
Deformation space, it is adaptable for the irregular shape of Open-Hole Section；
3, when seperated layer water injection, central tube 5 can have certain stroke with tubing string in telescopic chute section 4, will not unseal in advance.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this reality
The ordinary meaning understood with novel one of ordinary skill in the art.
In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property or implicitly indicate the quantity of indicated technical characteristic.The meaning of " plurality " is two in the description of the present invention,
More than, unless otherwise specifically defined.
In this application unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In this application unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type, should all cover in the claim of the utility model and the range of specification.
Especially, as long as structural conflict is not present, items technical characteristic mentioned in the various embodiments can combine in any way
Get up.The utility model is not limited to specific embodiment disclosed herein, but including falling within the scope of the appended claims
All technical solutions.
Claims (10)
1. a kind of ultradeep well seperated layer water injection open hole packer, which is characterized in that including central tube, top connection and lower contact, institute
On the end for stating the first end that top connection is connected to the central tube, the lower contact is connected to the second end of the central tube
On end, the maximum outside diameter of the lower contact having a size of the maximum outside diameter size of the packer,
Also, the front end of the lower contact has into well guide frame, which is used for the packer tripping in oil/gas well
Shi Jinhang guiding.
2. ultradeep well seperated layer water injection open hole packer according to claim 1, which is characterized in that further include packing element, glue
Cylinder is sheathed on the second end of the central tube,
Wherein, the packing element is equipped with more steel bands, is interrupted setting, the glue on the axial direction of packing element between more steel bands
Toroidal cavity is formed between cylinder and the central tube.
3. ultradeep well seperated layer water injection open hole packer according to claim 2, which is characterized in that further include that connection is outer
Cylinder, set valve piston, set check valve and packing element on outer cylinder, it is described connection outer cylinder first end and the top connection can the company of deblocking
It connects,
The second end of the connection outer cylinder is equipped with annular groove, is formed and is used between the annular groove and the periphery wall of the central tube
Set the annular piston chamber of valve piston described in receiving, it is described to set valve piston to be slidably set to the annular piston intracavitary,
The check valve that sets is arranged and is fixed on the central tube, and the second end of the connection outer cylinder is arranged and is connected to institute
The outside for setting the first end of check valve is stated, the first end of outer cylinder, which is arranged and is connected to, on the packing element described sets check valve
Second end, wherein offered on the central tube and set inlet opening, between the inner cavity of the central tube and the annular piston chamber
Inlet opening connection is set through described,
Connectivity slot is offered on the inner wall for setting valve piston, the connectivity slot sets the second end end face of valve piston described in
Extend to pre-determined distance towards first end, the connectivity slot with set inlet opening described in the warp of the inner cavity of the central tube and be connected to.
4. ultradeep well seperated layer water injection open hole packer according to claim 3, which is characterized in that described to set check valve
Including lock-on connection, taper valve core and diversion pipe,
The first hole and the second hole, first hole and are successively offered along the axis direction of central tube on the lock-on connection
Two holes communicate with each other and run through entire lock-on connection, and the diameter in first hole is greater than the diameter in the second hole, first hole and
Second hole forms step pore structure, wherein and first hole sets the direction of valve piston described in,
The taper valve core includes conical head and the hollow slide bar that connect with the conical head, and the hollow slide bar is slidably set
In in second hole, the conical head is located in first hole, and spring is arranged on the hollow slide bar, the spring
One end is connected on the step surface of the stepped hole, and the diversion pipe is inserted in first hole, and the diversion pipe is towards institute
It states and is spaced pre-determined distance setting between the end face of step surface and the step surface, form the sliding space of the conical head, it is described
The end face of diversion pipe towards the step surface is connected on the head of the conical head,
Wherein, the diversion pipe is connected to the annular piston chamber, and multiple through flow holes are offered on the conical head, described through-flow
Hole is connected to the hollow slide bar and the sliding space, and the toroidal cavity between second hole and the packing element and central tube connects
It is logical.
5. ultradeep well seperated layer water injection open hole packer according to claim 4, which is characterized in that on the connection outer cylinder
It is successively arranged the first pin hole, the second pin hole and third pin hole along its first end to second end,
Shop bolt is inserted in first pin hole, the shop bolt penetrates in the outer wall of the top connection, thus real
The connection of outer cylinder and the top connection is now connected,
Axially extending telescopic chute section is offered in the top connection, and deblocking pin is inserted in second pin hole, it is described
The end head of deblocking pin protrudes into the telescopic chute section,
It is inserted in the third pin hole and sets pin, the pin that sets penetrates described set in the outer wall of valve piston.
6. ultradeep well seperated layer water injection open hole packer according to claim 5, which is characterized in that the deblocking pin
Shear strength is greater than the shear strength of the shop bolt.
7. ultradeep well seperated layer water injection open hole packer according to claim 3, which is characterized in that further include air supported head and
Outer cylinder under packing element, the air supported head are arranged and are connected on the central tube, and the air supported head is located at the packing element and connects under
The side of head, the second end of outer cylinder is connected on the air supported head under the packing element, and first end is arranged and is connected to the packing element
Second end.
8. ultradeep well seperated layer water injection open hole packer according to claim 7, which is characterized in that the air supported head it is interior
Inner groovy is offered on peripheral wall, and lower part gas pressure relief slot, the lower part pressure release are offered on the periphery wall of the second end of the central tube
Slot position between the air supported head and lower contact, the central tube relatively the air supported head slide when, the lower part gas pressure relief slot with
The inner groovy is at least partly overlapped, to realize the pressure release to packing element and inside contract.
9. ultradeep well seperated layer water injection open hole packer according to claim 1-8, which is characterized in that described to lead
It is the structure being sequentially reduced from diameter to structure.
10. according to the described in any item ultradeep well seperated layer water injection open hole packers of claim 2-8, which is characterized in that described
Packing element is intermediate structure thick, both ends are thin, and centre is equipped with protrusion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820760477.3U CN208220719U (en) | 2018-05-21 | 2018-05-21 | Ultradeep well seperated layer water injection open hole packer |
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| CN201820760477.3U CN208220719U (en) | 2018-05-21 | 2018-05-21 | Ultradeep well seperated layer water injection open hole packer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361000A (en) * | 2018-05-21 | 2018-08-03 | 中国石油化工股份有限公司 | Ultradeep well seperated layer water injection open hole packer |
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2018
- 2018-05-21 CN CN201820760477.3U patent/CN208220719U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361000A (en) * | 2018-05-21 | 2018-08-03 | 中国石油化工股份有限公司 | Ultradeep well seperated layer water injection open hole packer |
| CN108361000B (en) * | 2018-05-21 | 2024-05-07 | 中国石油化工股份有限公司 | Open hole packer for ultra-deep well separate layer water injection |
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