CN207988998U - A kind of sleeve hydraulic shaping tubing string special switch - Google Patents
A kind of sleeve hydraulic shaping tubing string special switch Download PDFInfo
- Publication number
- CN207988998U CN207988998U CN201820334643.3U CN201820334643U CN207988998U CN 207988998 U CN207988998 U CN 207988998U CN 201820334643 U CN201820334643 U CN 201820334643U CN 207988998 U CN207988998 U CN 207988998U
- Authority
- CN
- China
- Prior art keywords
- central tube
- lower contact
- tubing string
- sleeve
- connector sleeve
- 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.)
- Active
Links
Abstract
The utility model belongs to well recovery middle sleeve fix tool technical field, and in particular to a kind of sleeve hydraulic shaping tubing string special switch.It is used on the hydraulic shaping tubing string of casing, including central tube, central tube upper end connected pipes box cupling, lower end connects lower contact, the central tube outer shroud is connected with outer connector sleeve, the central tube and the outside of lower contact connecting pin are provided with boss, lower contact, which heads on boss and is arranged between the pipe outer wall of center, is slidingly sealed slot, it is offered on the central tube and prevents opening pressurize hole, it is provided with oil jacket intercommunicating pore on the outer connector sleeve, the lower contact is provided with concave station outward, and the outer connector sleeve, which is stuck on the concave station of lower union joint, to be connected thereto.The utility model structure novel, easily manufactured, draining dependable performance avoids environmental pollution, improves work situation, improves work efficiency.
Description
Technical field
The utility model belongs to well recovery middle sleeve fix tool technical field, and in particular to a kind of sleeve hydraulic shaping
Tubing string special switch.
Background technology
In the development process in oil field, due to the influence of various factors, down-hole casing often generates undergauge and flexural deformation, has
Even rupture and bad break, often result in downhole tool by card, during unfreezing, some is pulled off, and is pulled and is fallen into shaft bottom, is made
At accident.Some have seriously affected operation, oil recovery and oil field development, and some well overhauls will shunt in a well in vain, or even big investment
Sidetracking is done, oil field later development has been seriously affected.Therefore, the reparation of deformed casing has great meaning to oilfield stimulation and stable yields
Justice.Oil well casing tube shaping device also just comes into being, and shaping tubing string generally comprises anchor, pressurizer, switching regulator draining
Valve, universal normally open valve, reshaper expansion-head connect with oil jacket after pressurizeing every time in casing swage operation when upper lifting pipe post automatically
It is logical, it changes conventional pitching or throws bar and open the connection of gate gurgle valve oil jacket, do not have to replace gate gurgle valve every time, to improve operation effect
Rate reduces operating cost.
But in practical application, the switching regulator draining valve portion of oil well casing swage tubing string is poorly used, and is let out
It is oily slow, the appearance of some problems such as it is not thorough.So the design of the oil drain switch part for oil well casing swage tubing string
Have much room for improvement and improves.
Invention content
The purpose of this utility model is that providing a kind of sleeve hydraulic shaping tubing string for problems of the prior art
Special switch, it solves during repairing casing the problems such as draining is slow, is not thorough.
The technical solution of the utility model is：
A kind of sleeve hydraulic shaping tubing string special switch, is used on the hydraulic shaping tubing string of casing, including central tube, in
Heart pipe upper end connected pipes box cupling, lower end connect lower contact, and the central tube outer shroud is connected with outer connector sleeve, the center
Pipe and the outside of lower contact connecting pin are provided with boss, and lower contact heads on boss and is arranged between the pipe outer wall of center and is slidingly sealed
Slot, offer on the central tube it is anti-open pressurize hole, be provided with oil jacket intercommunicating pore on the outer connector sleeve, connect under described
Head is provided with concave station outward, and the outer connector sleeve, which is stuck on the concave station of lower contact, to be connected thereto.
Specifically, being connected by inside and outside six side between the central tube and outer connector sleeve.
Specifically, the described anti-pressurize hole of opening is circle, at least there are four and uniform centrally disposed pipe on.
Specifically, the oil jacket intercommunicating pore is ellipse, at least there are six and uniform be arranged on outer connector sleeve 3.
The utility model structure novel, easily manufactured, draining dependable performance avoids environmental pollution, improves labour ring
Border improves work efficiency.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
1 oil pipe hoop, 2 central tubes, 3 outer connector sleeves, 4 it is anti-open pressurize hole, six sides inside and outside 5,
6 are slidingly sealed sealing groove, 7 oil jacket intercommunicating pores, 8 lower contacts.
Specific implementation mode
It is a kind of structural schematic diagram of sleeve hydraulic shaping tubing string special switch as shown in Figure 1, which is used in
On the hydraulic shaping tubing string of casing comprising central tube 2,2 upper end connected pipes box cupling 1 of central tube, lower end connect lower contact 8,
2 outer shroud of central tube is provided with outer connector sleeve 3, and is connected by inside and outside six side between central tube 2 and outer connector sleeve 3, institute
The central tube 2 stated and the outside of 8 connecting pin of lower contact are provided with boss, and lower contact 8 heads on boss and between 2 outer wall of central tube
Setting is slidingly sealed slot 6, is offered on the central tube 2 and prevents opening pressurize hole 4, oil jacket is provided on the outer connector sleeve 3
Intercommunicating pore 7, the lower contact 8 are provided with concave station outward, and the outer connector sleeve 3 is stuck on the concave station of lower union joint 8 and it
Connection.
The described anti-pressurize hole 4 of opening is circle, there are four and uniform centrally disposed pipe 2 on.The oil jacket connection
Hole 7 is ellipse, there are six and uniform be arranged on outer connector sleeve 3.
When carrying out repairing the work of deformed casing, it is whole first special switch provided by the utility model will to be mounted on hydraulic pressure
It on shape tubing string, is then placed in well, goes downwards to when being hampered position, no drilling depth illustrates that this section of casing becomes if tubing string gravity pressurizes
Shape needs to repair, and pours into liquid and suppresses anchor anchoring casing to be repaired, pressurizer Work Promote shaping head drilling depth, shaping head steel
Pearl rolling shaping makes casing restore；During upper lifting pipe post, on the central tube 2 of special switch provided by the utility model
Row, also uplink and speed are faster than central tube 2 for outer connector sleeve 3, anti-to open pressurize hole 4 and 7 recloser of oil jacket intercommunicating pore opens oil jacket
Connection starts that liquid is discharged, and is completed until liquid is discharged, anchor recycling, and pushing tubing string makes pressurizer release stroke return, center
2 downlink of pipe, anti-to open pressurize hole 4 and the separated reinstatement of oil jacket intercommunicating pore 7, the above action of repetition can be passed through up to casing,
Casing swage is completed.
The special switch that the use of the new type is provided is used on the hydraulic shaping tubing string of casing, and internal surface of sleeve pipe swelling pressure is returned
Circular state, to achieve the purpose that repair deformed casing, can handle random length multiple spot set become, improve efficiency saving at
This.
Finally it should be noted that:Above example is only to illustrate the technical solution of the utility model rather than limits it
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：It can still modify to specific embodiment of the present utility model or some technical characteristics are equally replaced
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
In range.
Claims (4)
1. a kind of sleeve hydraulic shaping tubing string special switch, is used on the hydraulic shaping tubing string of casing, including central tube (2),
Central tube (2) upper end connected pipes box cupling (1), lower end connect lower contact (8), which is characterized in that described central tube (2) outer shroud
It is connected with outer connector sleeve (3), the central tube (2) and the outside of lower contact (8) connecting pin are provided with boss, lower contact (8)
It heads on boss and is arranged between central tube (2) outer wall and be slidingly sealed slot (6), offered on the central tube (2) and prevent opening guarantor
It presses hole (4), oil jacket intercommunicating pore (7) is provided on the outer connector sleeve (3), the lower contact (8) is provided with concave station outward,
The outer connector sleeve (3), which is stuck on the concave station of lower contact (8), to be connected thereto.
2. according to claim 1, which is characterized in that pass through inside and outside six between the central tube (2) and outer connector sleeve (3)
Side's connection.
3. sleeve hydraulic shaping tubing string special switch according to claim 1, which is characterized in that described anti-to open pressurize hole
(4) be circle, at least there are four and uniform centrally disposed pipe (2) on.
4. sleeve hydraulic shaping tubing string special switch according to claim 1, which is characterized in that the oil jacket intercommunicating pore
(7) be ellipse, at least there are six and uniform be arranged on outer connector sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820334643.3U CN207988998U (en) | 2018-03-12 | 2018-03-12 | A kind of sleeve hydraulic shaping tubing string special switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820334643.3U CN207988998U (en) | 2018-03-12 | 2018-03-12 | A kind of sleeve hydraulic shaping tubing string special switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207988998U true CN207988998U (en) | 2018-10-19 |
Family
ID=63826744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820334643.3U Active CN207988998U (en) | 2018-03-12 | 2018-03-12 | A kind of sleeve hydraulic shaping tubing string special switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207988998U (en) |
-
2018
- 2018-03-12 CN CN201820334643.3U patent/CN207988998U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207033449U (en) | A kind of fluid pressure type rock crack device | |
| CN207988998U (en) | A kind of sleeve hydraulic shaping tubing string special switch | |
| CN105569596B (en) | A kind of deformed casing prosthetic device | |
| CN101265788B (en) | Y tube anti-pollution method and its apparatus | |
| CN201013255Y (en) | Back-off sub | |
| CN208122840U (en) | A kind of protection sleeve pipe volume fracturing tubing string | |
| CN203515413U (en) | Mechanical and hydraulic dual-action ground anchor assembly | |
| CN214697789U (en) | Novel sealed horizontal slotted magnesium-lithium alloy B-type soluble ball seat | |
| CN108999595A (en) | A kind of oil well pump is just suppressing draining technique | |
| CN103061700B (en) | Casing-broken horizontal well sets right restorative procedure and special integrated tool thereof | |
| CN219691508U (en) | Soluble metal bottom plug expansion pipe sleeve repairing equipment | |
| CN211144439U (en) | Anti-blocking constant pressure joint for well completion pipe string under pressure | |
| CN210858637U (en) | Turning plate type underground oil pipe hydraulic control blowout preventer | |
| CN101265793B (en) | Y tube self-balance type down-hole switch | |
| CN213175593U (en) | Sliding sleeve with soluble structure | |
| CN207879291U (en) | Expand pipe connected pipe column | |
| CN111058792A (en) | Coiled tubing perforation-free under-pressure operation-free well completion device and method | |
| CN208456543U (en) | Hydraulic retractable fishing spear | |
| CN206458446U (en) | A kind of leather cup type card seals drag fracturing tubing string | |
| CN205297418U (en) | Oil draining anchoring device of oil pipe | |
| CN204590012U (en) | Prevent the steel pile casting of drilled pile collapse hole undergauge under deep extra large mud | |
| RU2258796C1 (en) | Casing pipe repair device | |
| CN210714647U (en) | Well cementation well completion tubular column toe end sliding sleeve | |
| CN216240516U (en) | Hydraulic releasing sub | |
| CN204851143U (en) | Sucker rod socket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |