CN207092984U - Exempt from drill integrated blind plate guide shoe - Google Patents
Exempt from drill integrated blind plate guide shoe Download PDFInfo
- Publication number
- CN207092984U CN207092984U CN201720939287.3U CN201720939287U CN207092984U CN 207092984 U CN207092984 U CN 207092984U CN 201720939287 U CN201720939287 U CN 201720939287U CN 207092984 U CN207092984 U CN 207092984U
- Authority
- CN
- China
- Prior art keywords
- blind plate
- guide shoe
- inner core
- groove
- cuts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 239000007787 solid Substances 0.000 claims abstract description 14
- 230000007704 transition Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 21
- 238000000034 method Methods 0.000 abstract description 8
- 238000005553 drilling Methods 0.000 abstract description 6
- 210000002445 nipple Anatomy 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses one kind to exempt from drill integrated blind plate guide shoe, including body, the upper end of the body of tubular is machined with sleeve pipe internal thread, lower half is uniformly machined with close to end face multiple cuts off hole, blind plate designs integrated inner core with guide shoe guide mechanism, the integral type inner core first half is solid blind plate part, lower half is hollow guide shoe guide mechanism, the outside of solid blind plate is machined with respectively cuts off groove and seal groove, the outside of the solid blind plate part of integral type inner core and the medial surface of body lower part, which are formed, to be coordinated, hollow guide shoe guide mechanism exposes body lower end, groove is cut off to align with the hole that cuts off of body, pressure cuts off to be arranged on and cuts off hole and cut off in groove, seal assembly in seal groove is formed with body medial surface to be sealed.The utility model, by the de- integral type inner core being connected on body that builds the pressure, can save special lower drilling tool and bore the process for removing inner core, reduce construction risk, save the engineering time, shorten well construction period, reduce individual well cost after completion construction terminates.
Description
Technical field
A kind of instrument of oil drilling engineering is the utility model is related to, especially one kind exempts from drill integrated blind plate guide shoe.
Background technology
Blind plate pipe nipple and guide shoe are through commonly used instrument in petroleum works completion practice, and its main function is pressure-bearing respectively
With the smooth tripping in of guiding tube string.Now widely used blind plate pipe nipple and guide shoe in general application method is：Guide shoe is arranged on pipe
String bottom, provides guiding, it is ensured that the smooth tripping in of pipe string, blind plate pipe nipple are then separately connected with guide shoe, therebetween may be used for pipe string
To connect some tubing strings.The characteristics of its is universal is that the guide shoe cap of the blind plate and guide shoe in blind plate pipe nipple is all integrally fixed on body,
After the completion of construction, before carrying out next step operation, it is necessary to which tripping in drilling tool, which is bored, to be removed.It is mainly disadvantageous in that：It can make
It is more into subsequent handling；Engineering time is longer；Can also drilling tool be caused to be difficult to tripping in if pipe string internal diameter is small；Increase construction cost；
Inter-zonal packing is carried out particularly with using packer, it is lower to bore except annex destroy without the completion mode of cement slurry cementing
Confinement system, Inter-zonal packing is caused to fail.
Utility model content
Technical problem to be solved in the utility model is to provide one kind and exempts from drill integrated blind plate guide shoe, can be in completion
By building the pressure after construction, make to be connected to the integral type inner core on body and suppress de- and freely fall into shaft bottom under gravity, so that
Follow-up bore can be saved and remove process, construction risk is reduced, save engineering time and cost.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：One kind is exempted from drill integrated blind plate and drawn
Footwear, including body, the upper end of the body of tubular are machined with sleeve pipe internal thread, and lower half is uniformly machined with multiple cut off close to end face
Hole, blind plate design integrated inner core with guide shoe guide mechanism, and the integral type inner core first half is solid blind plate part, and lower half is
Hollow guide shoe guide mechanism, the outside of solid blind plate is machined with respectively cuts off groove and seal groove, the solid blind plate of integral type inner core
The medial surface of partial outside and body lower part, which is formed, to be coordinated, and hollow guide shoe guide mechanism exposes body lower end, cut off groove with
Body cuts off hole alignment, and pressure cuts off and hole and cut off in groove installed in cutting off, the seal assembly in seal groove and this
Internal side forms sealing.
The body bottom processes inclined-plane at 45 °, between the outer rim of blind plate part and guide shoe guide mechanism with 45 ° tiltedly
Step surface transition, forms with body bottom inclined-plane and coordinates, and guide shoe guide mechanism is designed to the 45 ° of tapers closed up downwards.
The integral type inner core use can bore cast and form.
The beneficial effects of the utility model are：De- be connected on body that build the pressure can be passed through after completion construction terminates
Integral type inner core, be allowed to freely fall into shaft bottom, so as to before subsequent construction, save special lower drilling tool and bore work except inner core
Sequence, construction risk is reduced, save the engineering time, shorten well construction period, reduce individual well cost.
Brief description of the drawings
Fig. 1 is the structural representation of the present utility model for exempting from drill integrated blind plate guide shoe.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description：
As shown in figure 1, of the present utility model exempts from drill integrated blind plate guide shoe, including body, the upper end of the body 1 of tubular
Be machined with sleeve pipe internal thread, lower half be uniformly machined with close to end face it is multiple cut off hole, blind plate is designed to guide shoe guide mechanism
Integral type inner core 4, the first half of integral type inner core 4 are solid blind plate parts, and lower half is hollow guide shoe guide mechanism, solid blind
The outside of plate is machined with respectively cuts off groove and seal groove, the outside of the solid blind plate part of integral type inner core 4 and body lower part it is interior
Side, which is formed, to be coordinated, and hollow guide shoe guide mechanism exposes the lower end of body 1, cuts off groove and alignd with the hole that cuts off of body 1, pressure is cut
Pin 2, which is arranged on, to be cut off hole and cuts off in groove, and the seal assembly 3 in seal groove is formed with body medial surface and sealed.
The bottom of body 1 processes inclined-plane at 45 °, with 45 ° between the outer rim of blind plate part and guide shoe guide mechanism
Sloping platform terrace transition, forms with the bottom inclined-plane of body 1 and coordinates, and guide shoe guide mechanism is designed to the 45 ° of tapers closed up downwards.
The use of integral type inner core 4 can bore cast and form.
Specifically, body 1 is made up of alloy pipe, and its upper end is machined with sleeve pipe internal thread, and lower half is close to end face
Uniformly being machined with six cuts off hole, is one section of smooth sealing surface inside it, and bottom processes sloping platform terrace at 45 °；Integral type
Blind plate and guide shoe guide mechanism are carried out integrated design by inner core 4, and use can bore cast and form, and its first half is solid blind
Plate part, lower half are hollow guide shoe guide mechanisms, are 45 ° of excessive sloping platform ranks therebetween, finally can be oblique with the end of body 1
Step, which is formed, to be coordinated, and is machined with the outside of solid blind plate and is cut off groove and seal groove, and seal assembly 3 is arranged in seal groove.
Guide shoe guide mechanism is designed to the 45 ° of tapers closed up downwards.Outside and body 1 of the final integral type inner core 4 by blind plate part
The sealing surface of inner side, which is formed, to be coordinated, and is now cut off groove and is alignd with the hole that cuts off of body, and pressure cuts off to be arranged on and cuts off hole and cut
In cotter way, and the seal assembly 3 in seal groove is formed with the sealing surface inside body 1 and sealed, and it is new so just to form this practicality
Type exempts from drill integrated blind plate guide shoe.
During pipe string tripping in, the guide shoe guide mechanism of integral type inner core 4 can play guiding function, prevent pipe string bottom
End is inserted into the borehole wall, and in work progress, blind plate can effective pressure-bearing so that completion tool used in completion construction is smooth
Realization act, construction terminate after, by well head suppress to setting pressure, the integral type inner core 4 being connected with body can be suppressed it is de-,
Shaft bottom can be freely fallen under Gravitative Loads, save the brill before later stage operation and remove inner core process, reduce construction risk, section
The engineering time is saved, reduces individual well cost.45 ° of sloping platform terraces of the lower end of body 2 design simultaneously are alternatively subsequent construction tripping in instrument
Guiding well is provided, can smooth tripping in.
The utility model is used in the completion construction in oil drilling engineering, and its main effect has two：First, in pipe
Guiding function is played during string tripping in, avoids pipe string bottom from being inserted into the borehole wall, beneficial to the smooth tripping in of pipe string；Second, constructed in completion
During operation, envelope pressure effect is played, is suppressed by well head, can make to reach predetermined pressure inside pipe string, so that in completion construction
Used completion tool can be acted smoothly in realization.
By improving existing blind plate pipe nipple and guide shoe, can will be connected to after completion construction by building the pressure on body
Integral type inner core is suppressed to take off and is allowed to freely fall into shaft bottom, and so as to before subsequent construction, save the process for falling down and boring and removing inner core, saving is applied
Between man-hour, shorten well construction period, reduce construction cost.
In summary, content of the present utility model is not limited in the above embodiments, in same area it is insighted it
Scholar can easily propose other embodiments within technological guidance's thought of the present utility model, but this embodiment is all wrapped
Include within the scope of the utility model.
Claims (3)
1. one kind exempts from drill integrated blind plate guide shoe, including body (1), it is characterised in that the upper end of the body (1) of tubular is machined with
Sleeve pipe internal thread, lower half be uniformly machined with close to end face it is multiple cut off hole, blind plate and the design of guide shoe guide mechanism are integrated
Inner core (4), integral type inner core (4) first half are solid blind plate parts, and lower half is hollow guide shoe guide mechanism, solid blind plate
Outside be machined with cut off groove and seal groove respectively, the outside of the solid blind plate part of integral type inner core (4) and body lower part it is interior
Side, which is formed, to be coordinated, and hollow guide shoe guide mechanism exposes body (1) lower end, and the hole that cuts off for cutting off groove with body (1) is alignd, pressure
Power cuts off (2) installed in cutting off hole and cutting off in groove, and the seal assembly (3) in seal groove forms close with body medial surface
Envelope.
2. exempt from drill integrated blind plate guide shoe according to claim 1, it is characterised in that be processed into body (1) bottom
45 ° of inclined-planes are oblique with body (1) bottom with 45 ° of sloping platform terrace transition between the outer rim of blind plate part and guide shoe guide mechanism
Face, which is formed, to be coordinated, and guide shoe guide mechanism is designed to the 45 ° of tapers closed up downwards.
3. exempt from drill integrated blind plate guide shoe according to claim 1, it is characterised in that integral type inner core (4) use can bore
Cast forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720939287.3U CN207092984U (en) | 2017-07-28 | 2017-07-28 | Exempt from drill integrated blind plate guide shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720939287.3U CN207092984U (en) | 2017-07-28 | 2017-07-28 | Exempt from drill integrated blind plate guide shoe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207092984U true CN207092984U (en) | 2018-03-13 |
Family
ID=61543010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720939287.3U Expired - Fee Related CN207092984U (en) | 2017-07-28 | 2017-07-28 | Exempt from drill integrated blind plate guide shoe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207092984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253037A (en) * | 2020-09-22 | 2021-01-22 | 中国石油天然气股份有限公司 | Well cementation isolating device |
-
2017
- 2017-07-28 CN CN201720939287.3U patent/CN207092984U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253037A (en) * | 2020-09-22 | 2021-01-22 | 中国石油天然气股份有限公司 | Well cementation isolating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211110 Address after: 100007 No. 9, Dongzhimen North Street, Dongcheng District, Beijing Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: 300457 PetroChina Tianjin building Bohai Drilling Engineering Co., Ltd., No. 83, Second Street, economic and Technological Development Zone, Binhai New Area, Tianjin Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |