CN215108842U - External packer for casing - Google Patents
External packer for casing Download PDFInfo
- Publication number
- CN215108842U CN215108842U CN202121392405.6U CN202121392405U CN215108842U CN 215108842 U CN215108842 U CN 215108842U CN 202121392405 U CN202121392405 U CN 202121392405U CN 215108842 U CN215108842 U CN 215108842U
- Authority
- CN
- China
- Prior art keywords
- arc
- groove
- fixture block
- fixed lantern
- shaped plate
- 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
Images
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The utility model discloses an outer packer of sleeve pipe relates to the instrument field in the pit. Comprises a central tube, an arc-shaped plate, a set screw and a rubber cylinder, wherein two fixed lantern rings are fixedly sleeved on the outer wall of the central tube, one side of each fixed lantern ring is provided with a water inlet, the two sides of each fixed lantern ring are respectively provided with a left clamping block and a right clamping block, one side of the right clamping block is provided with a through hole, the arc-shaped plate is arranged on the front surface of the left clamping block, the front surface of the arc-shaped plate is provided with a thread groove, the positioning screw penetrates through the through hole and is in threaded connection with the thread groove, the rubber cylinder is sleeved on the outer side of the central tube and is arranged between the two fixed lantern rings, the utility model utilizes the design of the left fixture block and the right fixture block, after the left fixture block and the right fixture block are spliced together, the rubber cylinder can be clamped and fixed, and then the design of the supporting block is combined, the joint of the rubber cylinder and the fixed sleeve ring can be bent, so that the space inside the rubber cylinder is more closed.
Description
Technical Field
The utility model relates to a downhole tool technical field specifically is outer packer of sleeve pipe.
Background
When oil and gas field development completion or well cementation construction operation, according to corresponding technology demand, often all need adopt the outer packer of sleeve pipe to seal for a long time between pit shaft and the sleeve pipe, the packing element is one of the parts that are essential in the outer packer, and people often are to the inside water injection of packing element to this lets the packing element inflation, and then can form the packing between pit shaft and the sleeve pipe.
Rubber sleeve among the present external packer of sleeve is easy to be broken after using, and then just need timely change, but traditional rubber sleeve often all directly bonds to external packer of sleeve on, and this kind of mode leads to the rubber sleeve to drop easily, and then just can influence follow-up packing between pit shaft and the sleeve pipe.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
To prior art not enough, the utility model discloses a sleeve pipe seals spacer outward to solve the problem that proposes in the above-mentioned background art.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a casing outer packer comprising:
the outer wall of the central tube is fixedly sleeved with two fixed lantern rings, one side of each fixed lantern ring is provided with a water inlet, two sides of each fixed lantern ring are respectively provided with a left clamping block and a right clamping block, and one side of each right clamping block is provided with a through hole;
the arc plate is arranged on the front face of the left clamping block, and a threaded groove is formed in the front face of the arc plate;
the positioning screw penetrates through the through hole and is in threaded connection with the thread groove;
the packing element, the packing element cup joints in the outside of center tube, just the packing element sets up between two fixed lantern rings.
Preferably, the inside of left fixture block and right fixture block all fixes to inlay and is equipped with the supporting shoe, two one side of supporting shoe all corresponds the avris of fixed lantern ring.
Preferably, the front surface of the left clamping block is provided with an arc-shaped groove, one side inside the arc-shaped groove is provided with a containing groove, and the containing groove is sleeved on the outer side of the arc-shaped plate.
Preferably, a clamping groove is formed in one side of the right clamping block, the clamping groove is matched with one end of the arc plate, and the clamping groove is communicated with the through hole.
Preferably, two limiting grooves are symmetrically formed in the inner portion of the accommodating groove, and two limiting blocks fixedly connected with the two sides of the arc-shaped plate are sleeved in the limiting grooves in a sliding mode.
Preferably, the front of the arc-shaped plate is provided with a groove, and a rubber pad is fixedly sleeved in the groove.
The utility model discloses a sleeve pipe outer packer, its beneficial effect who possesses as follows:
1. the utility model discloses an utilize the design of left fixture block and right fixture block, left fixture block and right fixture block can be followed the outside of the fixed lantern ring and taken off, and then make things convenient for the operator to take off the packing element, simultaneously left fixture block and right fixture block splice together after, the packing element can be fixed by the centre gripping, the design of reunion supporting shoe for the packing element can be buckled with the junction of the fixed lantern ring, thereby makes the inside space of packing element more airtight.
2. The utility model discloses an utilize the design of arc, the arc can remove in the front of left fixture block, and then can be in the same place left fixture block and the concatenation of right fixture block, then rethread set screw alright quick pair arc is fixed to the arc still can not drop from the inside of arc by the restriction of accomodating the groove, has guaranteed the integrality of device.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of the structure of the fixing sleeve of the present invention;
FIG. 3 is a schematic view of the structure of the support block of the present invention;
FIG. 4 is a schematic view of the arc-shaped plate structure of the present invention;
fig. 5 is the schematic view of the sectional structure of the joint between the left fixture block and the right fixture block of the present invention.
In the figure: 1. a central tube; 2. a left clamping block; 201. a right clamping block; 202. a through hole; 203. a support block; 3. a fixed collar; 301. a water inlet hole; 4. an arc-shaped slot; 401. a receiving groove; 402. a limiting groove; 5. an arc-shaped plate; 501. a groove; 502. a thread groove; 503. a limiting block; 6. a clamping groove; 7. a set screw; 8. and (5) a rubber cylinder.
Detailed Description
The embodiment of the utility model discloses a sleeve pipe external packer, as shown in fig. 1-5, including a central tube 1, two fixed lantern rings 3 are fixedly sleeved on the outer wall of the central tube 1, a water inlet 301 is arranged on one side of the fixed lantern ring 3, a left fixture block 2 and a right fixture block 201 are respectively arranged on both sides of the two fixed lantern rings 3, the radians of the inner rings of the left fixture block 2 and the right fixture block 201 are consistent, and a through hole 202 is arranged on one side of the right fixture block 201;
The arc-shaped plate 5 is arranged on the front surface of the left clamping block 2, and the front surface of the arc-shaped plate 5 is provided with a threaded groove 502;
the positioning screw 7, the positioning screw 7 runs through the through hole 202 and is in threaded connection with the thread groove 502, after the positioning screw 7 is screwed into the thread groove 502, the arc-shaped plate 5 is fixed at the connection position of the left fixture block 2 and the right fixture block 201, so that the rubber cylinder 8 is stably clamped by the left fixture block 2 and the right fixture block 201.
The supporting block 203 is fixedly embedded in the left fixture block 2 and the right fixture block 201, one side of each of the two supporting blocks 203 corresponds to the side of the fixed lantern ring 3, and the supporting block 203 can squeeze the joint of the rubber cylinder 8 and the fixed lantern ring 3, so that the rubber cylinder 8 is bent, and the inner space of the rubber cylinder 8 is further closed.
Arc wall 4 has been seted up in the front of left fixture block 2, and the groove 401 has been seted up to one side of arc wall 4 inside, accomodates groove 401 and cup joints in the outside of arc 5, accomodates groove 401 and provides certain activity space for arc 5.
Clamping groove 6 has been seted up to one side of right fixture block 201, and clamping groove 6 mutually supports with the one end of arc 5, and clamping groove 6 and through-hole 202 communicate each other, and after 5 blocks of arc entered into the inside of clamping groove 6, through-hole 202 was convenient for thread groove 502 and is aligned each other, and then made things convenient for the operator to twist set screw 7.
Two spacing grooves 402 have been seted up to the inside symmetry of accomodating groove 401, and the inside all sliding sleeve of two spacing grooves 402 is equipped with stopper 503 with 5 both sides fixed connection of arc, and stopper 503 and spacing groove 402 can restrict the displacement of arc 5, also can avoid arc 5 to break away from the inside of left fixture block 2 simultaneously.
The front of arc 5 is seted up flutedly 501, and recess 501 makes things convenient for the operator to stimulate arc 5, and the fixed cover in the inside of recess 501 is equipped with the rubber pad, and the rubber pad can protect operator's finger not to receive the injury.
The working principle is as follows: when the packing element 8 needs to be changed, the operator first unscrews the set screw 7, then buckles the recess 501 and drags the arc 5, and then the arc 5 drives the stopper 503 and slides along the inside of spacing groove 402 to final arc 5 can follow the inside roll-off of joint groove 6, then alright relieve the relation of connection between left fixture block 2 and the right fixture block 201, thereby alright directly take off packing element 8.
After the packing element 8 of damage takes off, the operator is at first with two port cover of new packing element 8 to the outside of the fixed lantern ring 3, then cup joint left fixture block 2 and right fixture block 201 to the outside of the fixed lantern ring 3 respectively, so that packing element 8 is by the centre gripping at left fixture block 2, between right fixture block 201 and the fixed lantern ring 3, then the operator withholds recess 501 and reversely pulls arc 5, arc 5 drives the inside reverse slip of stopper 503 along spacing groove 402, treat when stopper 503 can't slide, arc 5 just enters into the inside of joint groove 6, and arc 5 drives thread groove 502 and through-hole 202 and aligns each other this moment, last operator insert through-hole 202 with set screw 7 and screw up to in the inside of thread groove 502 can, and then just accomplish the change operation of packing element 8.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The external packer of sleeve pipe, its characterized in that: the method comprises the following steps:
the water inlet structure comprises a central tube (1), wherein two fixed lantern rings (3) are fixedly sleeved on the outer wall of the central tube (1), a water inlet hole (301) is formed in one side of each fixed lantern ring (3), a left clamping block (2) and a right clamping block (201) are respectively arranged on two sides of each fixed lantern ring (3), and a through hole (202) is formed in one side of each right clamping block (201);
the arc-shaped plate (5) is arranged on the front face of the left clamping block (2), and a threaded groove (502) is formed in the front face of the arc-shaped plate (5);
the positioning screw (7) penetrates through the through hole (202) and is in threaded connection with the thread groove (502);
the rubber sleeve (8) is sleeved on the outer side of the central tube (1), and the rubber sleeve (8) is arranged between the two fixed lantern rings (3).
2. The external casing packer of claim 1, wherein: the inside of left side fixture block (2) and right fixture block (201) all fixes to inlay and is equipped with supporting shoe (203), two one side of supporting shoe (203) all corresponds the avris of fixed lantern ring (3).
3. The external casing packer of claim 1, wherein: the front surface of the left clamping block (2) is provided with an arc-shaped groove (4), one side of the inner part of the arc-shaped groove (4) is provided with a containing groove (401), and the containing groove (401) is sleeved on the outer side of the arc-shaped plate (5).
4. The external casing packer of claim 1, wherein: clamping groove (6) have been seted up to one side of right fixture block (201), clamping groove (6) mutually support with the one end of arc (5), just clamping groove (6) and through-hole (202) communicate each other.
5. The external casing packer of claim 3, wherein: two limiting grooves (402) are symmetrically formed in the accommodating groove (401), and two limiting blocks (503) fixedly connected with the two sides of the arc-shaped plate (5) are sleeved in the limiting grooves (402) in a sliding mode.
6. The external casing packer of claim 1, wherein: the front of the arc-shaped plate (5) is provided with a groove (501), and a rubber pad is fixedly sleeved in the groove (501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121392405.6U CN215108842U (en) | 2021-06-15 | 2021-06-15 | External packer for casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121392405.6U CN215108842U (en) | 2021-06-15 | 2021-06-15 | External packer for casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215108842U true CN215108842U (en) | 2021-12-10 |
Family
ID=79309956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121392405.6U Active CN215108842U (en) | 2021-06-15 | 2021-06-15 | External packer for casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215108842U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352230A (en) * | 2022-03-17 | 2022-04-15 | 东营百华石油技术开发有限公司 | Double-layer steel pipe expansion type external pipe packer |
-
2021
- 2021-06-15 CN CN202121392405.6U patent/CN215108842U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352230A (en) * | 2022-03-17 | 2022-04-15 | 东营百华石油技术开发有限公司 | Double-layer steel pipe expansion type external pipe packer |
| CN114352230B (en) * | 2022-03-17 | 2022-05-13 | 东营百华石油技术开发有限公司 | Double-layer steel pipe expansion type external pipe packer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215108842U (en) | External packer for casing | |
| CN104499960B (en) | A kind of fixing clamping device | |
| WO2004111380A3 (en) | Wellhead assembly with pressure actuated seal assembly and running tool | |
| CN104568703B (en) | Cover pressure hole and ooze clamper | |
| CN204457580U (en) | Combined type packer | |
| CN107842346B (en) | Sealed working barrel in composite type insertion pipe of oil-water well | |
| CN203685115U (en) | Rubber tube protruding prevention ring for permanent packer | |
| CN201162498Y (en) | Splicing mechanism of expansion prick | |
| CN201236658Y (en) | Adjustable polished rod sealer | |
| CN202903647U (en) | Visible rock core holder | |
| CN209067148U (en) | Well mouth sealing device | |
| CN104847294B (en) | Multilateral Wells electric submersible pump device for well heads | |
| CN204299572U (en) | A kind of horizontal well is looked for and is leakage altered tubing string | |
| CN207093980U (en) | Oil pipe pipe nipple | |
| CN206847858U (en) | A kind of device using closure pipe end endoporus leak test | |
| CN205716109U (en) | A kind of outer silk straight joint | |
| CN202165041U (en) | Plug-in sealing device | |
| CN205206768U (en) | Tap is led in air guide | |
| CN204532237U (en) | Clamping hoop type cementing cement head | |
| CN107448603A (en) | A kind of piston rod | |
| CN202117577U (en) | Internal slip type connector for continuous tube | |
| CN204782834U (en) | Novel continuous outside of tubes slips connector | |
| CN203594402U (en) | Oil tube plugging device | |
| CN206707670U (en) | Automatically reset hole packer | |
| CN203686221U (en) | Ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |