CN207813559U - The self-priming external packer of pipe of cement - Google Patents
The self-priming external packer of pipe of cement Download PDFInfo
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- CN207813559U CN207813559U CN201820218269.0U CN201820218269U CN207813559U CN 207813559 U CN207813559 U CN 207813559U CN 201820218269 U CN201820218269 U CN 201820218269U CN 207813559 U CN207813559 U CN 207813559U
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- packing element
- pipe nipple
- pipe
- joint sleeve
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Abstract
The utility model is related to a kind of self-priming external packer of pipe of cement, including：Cement self-absorbing structure part, including pipe nipple and the upper joint sleeve set gradually from top to bottom on the outside of pipe nipple is set, fluid cylinder, leather cup covers and lower joint sleeve, pipe nipple apical lateral is connect with upper thread bush, leather cup set upper and lower sides are respectively equipped with leather cup and down cup, expansion glue canister portion point, including the packing element on the outside of central tube and centrally disposed pipe, it is respectively equipped with packing element connector and lower rubber cylinder connector on the outside of packing element top and the bottom, the central tube is located at pipe nipple lower part, central tube upper outside is connect by box cupling on packing element with the pipe nipple lower outside, central tube lower outside is connect by box cupling under packing element with lower contact upper outside；The utility model, which is one kind, can not only use grout filling, but also the external casing packer being conveniently operated, and have positive effect to promoting cementing quality, solve the problems, such as that packer sealing timeliness is restricted, completion technique level will be greatly improved.
Description
Technical field
The utility model is related to be insulated outside offshore oilfield engineering technology technical field more particularly to a kind of self-priming pipe of cement
Device.
Background technology
The thin interlayer packing method of routine is carried out at the thin interlayer using external packer of pipe between oil reservoir and water layer at present
Packing.Scene mostly uses the swollen sealing tube external packer of liquid, and over time, external packer of pipe sealing element is in underground severe
Under the conditions of can rapid aging it is damaged, the swollen sealing liquid body in encapsulation flows out packing element, to cause the failure of packer.
The slave well shaft fixing technology of the tool is cut, and solves the problems, such as to alter outside interlayer pipe caused by conventional external packer of pipe failure.
In the drilling engineering of petroleum industry, completion cementing technology is the tripping in casing in the open hole well being drilled, the cement that will have been configured
Slurry is injected into the annular space of wellbore and casing, and Hou Ning forms a firm cement sheath.Its main function is：Insulate oil, gas,
Water layer prevents the ground mutual channelling of inter-layer fluid, protection production layer；Packing severe leakage layer, high pressure zone or it is other easily cave in etc. it is multiple
Miscellaneous stratum；Supporting sleeve and prevent corrosion of the underground fluid to casing.The quality of cementing quality directly influences follow-up oil recovery work
Journey and oil recovery factor.And how to ensure cementing quality, the mutual water breakthrough slot of oil-gas-water layer in recovery process is avoided, is to reduce
Production cost improves the important channel of the well production efficiency.
Invention content
In order to solve deficiency in the prior art, the utility model provides a kind of cement self-priming that can improve cementing quality
Formula external packer of pipe.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of self-priming external packer of pipe of cement, which is characterized in that including：
Cement self-absorbing structure part, including pipe nipple and be arranged the upper joint sleeve set gradually from top to bottom on the outside of pipe nipple,
Fluid cylinder, leather cup set and lower joint sleeve, pipe nipple apical lateral connect with upper thread bush, leather cup cover upper and lower sides be respectively equipped with leather cup with
Down cup；
Expansion glue canister portion point, including the packing element on the outside of central tube and centrally disposed pipe, packing element top and the bottom outside are set respectively
There are upper packing element connector and lower rubber cylinder connector, the central tube to be located at pipe nipple lower part, central tube upper outside passes through box cupling on packing element
It is connect with the pipe nipple lower outside, central tube lower outside is connect by box cupling under packing element with lower contact upper outside.
The pipe nipple side wall is equipped with backing pin, and pipe nipple outside at backing pin is equipped with the upper joint sleeve, and upper joint sleeve is in gear
Pin top is connect by sealing ring with pipe nipple outer wall, and upper joint sleeve upper outside is additionally provided with thread bush, upper thread bush lower part
Between upper joint sleeve inner wall and pipe nipple outer wall, the setting of upper joint sleeve lower part is in pipe nipple outer wall and the fluid cylinder top end opening
Between wall, it is equipped with piston in the gap between fluid cylinder and pipe nipple outer wall, feed liquor set, feed liquor are equipped between fluid cylinder and leather cup set
It puts on and is provided with inlet opening, feed liquor covers top and is arranged between pipe nipple outer wall and the fluid cylinder bottom end opening inner wall, under feed liquor set
Portion is located on the outside of leather cup set top and upper leather cup, and leather cup, which covers, is equipped with the lower joint sleeve on the outside of lower part and down cup.
Be equipped with packing element inlet opening on the packing element in box cupling, on packing element the setting of box cupling top lower joint sleeve and pipe nipple it
Between, box cupling lower part is located on the outside of gluing cylinder connector on packing element, and packing element connector is arranged in packing element upper outside.
Box cupling top is arranged on the outside of lower rubber cylinder connector under the packing element, and lower rubber cylinder connector is arranged in packing element lower outside,
Box cupling bottom end is connect with lower contact under packing element.
The utility model has the beneficial effects that：
The device is a kind of grout filling, and easy to operate external casing packer can make shape between casing and pit shaft
At permanent bridge blinding, high pressure oil air water when cement slurry sets caused by weightless or abnormal formation pressure is avoided to gang up, prevented solid
Set outer tube oil gas occurs after well and sprays the effective tool emitted, while improving casing centralization degree and stability, to promoting cementing quality
There is positive effect, solve the problems, such as that packer sealing timeliness is restricted, completion technique level will be greatly improved.
After device expansion, filling pressure is generally in 10 ~ 15MPa.The pressure is acted on by packing element on country rock, to enclosing
Rock has preferable compaction, and stratum is greatly improved at country rock to the buffer action of pressure.
The device has direct centralizing function, packer top and the bottom in expansion process, to the casing of the device upper and lower sides
The casing annulus of position can form complete cement sheath, improve cementing quality.
Stratum and cementing quality particularly thorny for oil gas water, interlayer is thin it is difficult to ensure that interval, which can be with
It is preferable to improve pressure isolation function, improve development effectiveness.
For needing pressure to be transformed, high interval is required cementing quality, which can also be installed, segmentation is improved and changes
The isolation effect made, prevents high pressure zone from altering slot.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model.
In figure：1 box cupling；2 pipe nipples；Thread bush on 3；4 sealing rings；5 backing pins；6 upper joint sleeves；7 pistons；8 fluid cylinders；9 feed liquors
Set；Leather cup on 10；11 leather cup sets；12 down cups；13 lower joint sleeves；Box cupling on 14 packing elements；15 packing element inlet openings；Packing element connects on 16
Head；17 central tubes；18 packing elements；Box cupling under 19 packing elements；20 lower contacts, 21 lower rubber cylinder connectors.
Specific implementation mode
Illustrate that the embodiment of the utility model, those skilled in the art can be by these by particular specific embodiment below
Content disclosed by specification understands other advantages and effect of the utility model easily.
With reference to the accompanying drawings shown in 1：A kind of self-priming external packer of pipe of cement, including：
Cement self-absorbing structure part, including pipe nipple 2 and the upper joint sleeve set gradually from top to bottom in the outside of pipe nipple 2 is set
6, fluid cylinder 8, leather cup set 11 and lower joint sleeve 13,2 apical lateral of pipe nipple are connect with upper thread bush 3, and leather cup covers 11 upper and lower sides difference
Equipped with upper leather cup 10 and down cup 12；2 side wall of the pipe nipple is equipped with backing pin 5, and pipe nipple 2 is equipped on described in outside at backing pin 5
Connector sleeve 6, upper joint sleeve 6 is connect by sealing ring 4 with 2 outer wall of pipe nipple in 5 top of backing pin, and 6 upper outside of upper joint sleeve is set
There are the upper thread bush 3,3 lower part of upper thread bush to be located between 2 outer wall of 6 inner wall of upper joint sleeve and pipe nipple, 6 lower part of upper joint sleeve is set
It sets between 8 top end opening inner wall of 2 outer wall of pipe nipple and the fluid cylinder, piston is equipped in the gap between 2 outer wall of fluid cylinder 8 and pipe nipple
7, piston 7 is loop configuration, and feed liquor is equipped between fluid cylinder 8 and leather cup set 11 and covers 9, inlet opening is provided on feed liquor set 9, into
Liquid covers 9 tops and is arranged between 8 bottom end opening inner wall of 2 outer wall of pipe nipple and the fluid cylinder, and feed liquor covers 9 lower parts and is located on leather cup set 11
10 outside of portion and upper leather cup, leather cup cover 11 lower parts and 12 outside of down cup and are equipped with lower joint sleeve 13；Expansion glue canister portion point, including in
The packing element 18 in 17 outside of heart pipe 17 and centrally disposed pipe, 18 top and the bottom of packing element outside is respectively equipped with packing element connector 16 and lower glue
Cylinder connector 21, the central tube 17 are located at 2 lower part of pipe nipple, and 17 upper outside of central tube passes through box cupling on packing element 14 and the pipe nipple
2 lower outsides connect, and 17 lower outside of central tube is connect by box cupling under packing element 19 with 20 upper outside of lower contact；The packing element
Packing element inlet opening 15 is equipped in upper box cupling 14,14 top of box cupling is arranged between lower joint sleeve 13 and pipe nipple 2 on packing element, on packing element
14 lower part of box cupling is located at 16 outside of gluing cylinder connector, and 18 connector of packing element is arranged in 18 upper outside of packing element.
The setting of 19 top of box cupling is arranged in 21 outside of lower rubber cylinder connector, lower rubber cylinder connector 21 under packing element 18 under the packing element
On the outside of portion, 19 bottom end of box cupling is connect with lower contact 20 under packing element.
The backing pin 5 is internally provided with blind hole, and after backing pin 5 is interrupted by bruising rubber plug, the blind hole of backing pin 5 can be used for being connected to
Inside 2 inside of pipe nipple and fluid cylinder 8.
The piston 7 is set in fluid cylinder 8, and by 8 inside division of fluid cylinder at two parts, a part passes through backing pin 5 and pipe nipple 2
Inside connection, a part are connected to by feed liquor set 9 with external annular space.
Upper leather cup 10 and down cup 12 in leather cup set 11 play check valve, and upper leather cup 10 is cement mortar from feed liquor
The check valve of the inlet opening inspiration fluid cylinder 8 of set 9, cement mortar cannot return after entering fluid cylinder 8 from inlet opening；Down cup 12 is water
Mud enters the check valve of box cupling 14 on packing element, and cement mortar, which is entered by packing element inlet opening 15 in packing element 18, cannot return into fluid cylinder
In 8.
The operation principle of the self-priming external packer of pipe of cement is：Bruising rubber plug, bruising rubber plug downlink are thrown after the completion of cementing
It cuts and is continued traveling downwardly and impacting seat bruising after opening backing pin 5；After the completion of bruising, well head pressure, 7 uplink of piston are discharged, fluid cylinder 8 leads to
The inlet opening sucking cement mortar of feed liquor set 9 is crossed, repressurization pressure enters from the blind hole of backing pin 5 pushes 7 downlink of piston, leather cup set
11 upper leather cup 10 closes inlet opening, and cement mortar enters packing element by the packing element inlet opening 15 of box cupling 14 on down cup 12, packing element
In 18, and the packing element 18 of the self-priming external packer of pipe of expanding cement.Well head pressure is discharged, repeats to suck cement mortar, reexpand
The packing element 18 of the self-priming external packer of pipe of cement；Pressurization, pressure release to the swollen envelope of the self-priming external packer of pipe of cement are completed repeatedly,
Well cementation finishes.
Operation sequence when the self-priming external packer of pipe of cement uses：
1, tripping in casing and attachment in order, by being detained on standard torque；
2, the self-priming external packer of pipe of tripping in cement；
3, it after complete under casing, connects cementing head and well cementation pipeline, turn on pump recycles the ascending cycle of discharge capacity, prevent from suppressing leakage ground
Layer, while ensuring tool-packer in the position of design packing；
4, bruising rubber plug is packed into cementing head；
5, cementing manifold is connected；
6, it cements the well；
7, pressure touch moulding plug, for slurry；
8, termination of pumping, releases stress in well head, and the swollen self-priming external packer of pipe of water shutoff mud that pressurizes repeatedly is completed to design pressure
Well cementing operation.
The foregoing is merely the preferred embodiments of the utility model, as long as realizing the utility model with essentially identical means
Purpose technical solution, belong within the scope of protection of the utility model.
Claims (4)
1. a kind of self-priming external packer of pipe of cement, which is characterized in that including：
Cement self-absorbing structure part, including pipe nipple and be arranged the upper joint sleeve set gradually from top to bottom on the outside of pipe nipple, fluid cylinder,
Leather cup covers and lower joint sleeve, pipe nipple apical lateral are connect with upper thread bush, and leather cup set upper and lower sides are respectively equipped with leather cup and hypodermis
Bowl；
Expansion glue canister portion point, including the packing element on the outside of central tube and centrally disposed pipe, packing element top and the bottom outside are respectively equipped with
Packing element connector and lower rubber cylinder connector, the central tube are located at pipe nipple lower part, and central tube upper outside passes through box cupling on packing element and institute
The connection of pipe nipple lower outside is stated, central tube lower outside is connect by box cupling under packing element with lower contact upper outside.
2. the self-priming external packer of pipe of cement according to claim 1, it is characterised in that：The pipe nipple side wall is equipped with gear
Pin, pipe nipple outside at backing pin are equipped with the upper joint sleeve, and upper joint sleeve is connected in backing pin top by sealing ring and pipe nipple outer wall
Connect, and upper joint sleeve upper outside is additionally provided with thread bush, upper thread bush lower part be located at upper joint sleeve inner wall and pipe nipple outer wall it
Between, upper joint sleeve lower part is arranged between pipe nipple outer wall and the fluid cylinder top end opening inner wall, between fluid cylinder and pipe nipple outer wall
It is equipped with piston in gap, feed liquor set is equipped between fluid cylinder and leather cup set, feed liquor, which is put on, is provided with inlet opening, and feed liquor covers top
It is arranged between pipe nipple outer wall and the fluid cylinder bottom end opening inner wall, feed liquor set lower part is located at outside leather cup set top and upper leather cup
Side, leather cup, which covers, is equipped with the lower joint sleeve on the outside of lower part and down cup.
3. the self-priming external packer of pipe of cement according to claim 1, it is characterised in that：It is equipped in box cupling on the packing element
Packing element inlet opening, box cupling top is arranged between lower joint sleeve and pipe nipple on packing element, and box cupling lower part is located at gluing cylinder and connects on packing element
Head outside, packing element connector are arranged in packing element upper outside.
4. the self-priming external packer of pipe of cement according to claim 1, it is characterised in that：Box cupling top is set under the packing element
It sets on the outside of lower rubber cylinder connector, lower rubber cylinder connector is arranged under packing element lower outside, packing element box cupling bottom end and is connect with lower contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820218269.0U CN207813559U (en) | 2018-02-08 | 2018-02-08 | The self-priming external packer of pipe of cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820218269.0U CN207813559U (en) | 2018-02-08 | 2018-02-08 | The self-priming external packer of pipe of cement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207813559U true CN207813559U (en) | 2018-09-04 |
Family
ID=63321053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820218269.0U Expired - Fee Related CN207813559U (en) | 2018-02-08 | 2018-02-08 | The self-priming external packer of pipe of cement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207813559U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905442A (en) * | 2019-12-12 | 2020-03-24 | 中国石油集团渤海钻探工程有限公司 | Empty cement paste of sleeve pipe outer loop fills packer |
| CN112780221A (en) * | 2021-03-03 | 2021-05-11 | 东营市友佳石油科技有限公司 | Pollution-free perforation-free well cementation tool device and method for reservoir |
-
2018
- 2018-02-08 CN CN201820218269.0U patent/CN207813559U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905442A (en) * | 2019-12-12 | 2020-03-24 | 中国石油集团渤海钻探工程有限公司 | Empty cement paste of sleeve pipe outer loop fills packer |
| CN110905442B (en) * | 2019-12-12 | 2022-04-01 | 中国石油集团渤海钻探工程有限公司 | Empty cement paste of sleeve pipe outer loop fills packer |
| CN112780221A (en) * | 2021-03-03 | 2021-05-11 | 东营市友佳石油科技有限公司 | Pollution-free perforation-free well cementation tool device and method for reservoir |
| CN112780221B (en) * | 2021-03-03 | 2021-11-02 | 东营市友佳石油科技有限公司 | Pollution-free perforation-free well cementation tool device and method for reservoir |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180904 Termination date: 20190208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |