CN202108462U - Combined insertion sealing device - Google Patents
Combined insertion sealing device Download PDFInfo
- Publication number
- CN202108462U CN202108462U CN2011201947922U CN201120194792U CN202108462U CN 202108462 U CN202108462 U CN 202108462U CN 2011201947922 U CN2011201947922 U CN 2011201947922U CN 201120194792 U CN201120194792 U CN 201120194792U CN 202108462 U CN202108462 U CN 202108462U
- Authority
- CN
- China
- Prior art keywords
- ring
- joint
- sealing
- intubate
- transition joint
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 42
- 238000003780 insertion Methods 0.000 title abstract description 6
- 230000037431 insertion Effects 0.000 title abstract description 6
- 230000007704 transition Effects 0.000 claims description 25
- 238000010276 construction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 210000001503 joint Anatomy 0.000 abstract 3
- 238000002627 tracheal intubation Methods 0.000 description 2
- 238000010306 acid treatment Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The combined inserting and sealing device is applied to inserting and sealing of an oil downhole cannula packer or a bridge plug. The righting joint is provided with a righting end with an axial groove on the outer wall, and the lower part of the righting end is a conical surface; the lower end of the centralizing joint is in threaded connection with an insertion pipe, and a sealing group is sleeved on the outer wall of the insertion pipe; the lower end of the insertion pipe is in threaded connection with an intermediate joint, and an O-shaped sealing ring is arranged between the intermediate joint and the insertion pipe; the outer wall of the middle joint is sleeved with a sealing group; the lower end of the middle joint is connected with a guide shoe through threads, and an O-shaped sealing ring is arranged between the middle joint and the guide shoe. The effect is as follows: the combined type inserting sealing device and the packer body adopt movable sealing, and when the pipe column works normally, the creeping of the pipe column cannot influence the packer. The problem of prior art have the sealing washer easily wrong section and drop is solved, construction operation is convenient, sealing performance is good, can effectively reduce the number of times that the sealing washer was changed, improves work efficiency.
Description
Technical field
The utility model relates to petroleum machinery oil recovery field, and the device of particularly a kind of down-hole seal and pressure bearing is that a kind of combined type of intubate packer or bridging plug inserts sealing device.
Background technology
At present; Along with constantly carrying out of Oilfield developing; Intubate packer and bridging plug be as the kit of oilfield downhole operation, in separate zone production, and separate layer acid treatment, pressure break; Extensive use in the measure operations such as the temporary transient or permanent shutoff of replacement bridging plug lower floor has important effect in the field produces operation.There are some problems in intubation seal device commonly used when carrying out the seal and pressure bearing operation; Mainly show intubation seal device in the process that insertion is extracted sealing ring fallibility section with come off; The wriggling of tubing string can influence and packer sealing, has limited the carrying out of follow-up underground work.
The utility model content
The purpose of the utility model is: provide a kind of combined type to insert sealing device, adopt movable sealing, can realize sealing with the packer body, sealing is reliable during the tubing string operate as normal.
The technical scheme that the utility model adopts is: combined type inserts sealing device; Mainly form by setting upright joint, intubate, seal group, transition joint, O-ring seals and guiding guide shoe; Internal thread is arranged at the top setting upright joint; Can be connected on the tubing string, setting upright joint has outer wall to have the end of setting upright of axial groove, and the bottom of setting upright end is a taper seat; There is external screw thread lower end setting upright joint, is connected with intubate at the lower end screw thread of setting upright joint, it is characterized in that: on the outer wall of intubate, be with seal group; Screw thread is connected with transition joint in the lower end of intubate, between transition joint and the intubate O-ring seals is arranged; On the outer wall of transition joint, be with seal group; Screw thread is connected with the guiding guide shoe in the lower end of transition joint, between transition joint and the guiding guide shoe O-ring seals is arranged.
Described seal group is made up of concave support ring, v-ring, convex support ring, L shaped protection ring and T shape sealing ring; Concave support ring, v-ring, convex support ring, L shaped protection ring and T shape sealing ring are enclosed within intubate or the transition joint; Be the bottom of concave support ring set at the step surface of intubate or transition joint; At 2～8 v-rings of the bottom of concave support ring cover; Cover convex support ring overlaps L shaped protection ring in the bottom of convex support ring in the bottom of v-ring, the bottom cover T shape sealing ring of L shaped protection ring.
Intubate packer or bridging plug accomplish set give up after, combined type is inserted in the central tube that sealing device is inserted into packer, form good sealing with the central tube inner surface, thereby packing oil jacket space.
The beneficial effect of the utility model: the utility model combined type inserts sealing device, and combined type inserts sealing device and the packer body adopts movable sealing, and during the tubing string operate as normal, the wriggling of tubing string can not impact packer.Solved prior art and had sealing ring fallibility section and the problem that comes off, convenient, the good seal performance of construction operation can effectively reduce the number of times that sealing ring is changed, and increases work efficiency.
Description of drawings
Fig. 1 is that the utility model combined type inserts the sealing device structure generalized section.
Fig. 2 is the structural profile sketch map of seal group.
Among the figure, 1-sets upright joint, 2-intubate, 3-seal group, 4-transition joint, 5-O shape sealing ring, the 6-guide shoe that leads, 7-concave support ring, 8-joint ring, 9-convex support ring, 10-L shape protection ring, 11-T shape sealing ring.
The specific embodiment
Embodiment 1: inserting sealing device with a combined type is example, and the utility model is done further explain.
Consult Fig. 1.The utility model combined type inserts sealing device; Mainly form by setting upright joint 1, intubate 2, seal group 3, transition joint 4, O-ring seals 5 and guiding guide shoe 6; Internal thread is arranged at the top setting upright joint 1; Setting upright joint 1 has outer wall to have the end of setting upright of axial groove, and the bottom of setting upright end is a taper seat; There is external screw thread lower end setting upright joint 1, is connected with intubate 2 at the lower end screw thread of setting upright joint 1.On the outer wall of intubate 2, be with seal group 3; Screw thread is connected with transition joint 4 in the lower end of intubate 2, between transition joint 4 and the intubate 2 twice O-ring seals 5 is arranged; On the outer wall of transition joint 4, be with seal group 3; Screw thread is connected with guiding guide shoe 6 in the lower end of transition joint 4, between transition joint 4 and the guiding guide shoe 6 twice O-ring seals 5 is arranged.The external diameter of intubate 2 lower end external diameters, transition joint 4 external diameters and the guide shoe 6 that leads is identical.
Consult Fig. 2.Described seal group 3 is made up of concave support ring 7, v-ring 8, convex support ring 9, L shaped protection ring 10 and T shape sealing ring 11.One group of seal group 3 is enclosed within on the intubate 2; Another group seal group 3 is enclosed within the transition joint 4.Two groups of seal group 3 are respectively the bottoms that a concave support ring 7 is enclosed within the step surface of intubate 2 or transition joint 4; At two v-rings 8 of the bottom of concave support ring 7 cover; At convex support ring 9 of the bottom of v-ring 8 cover; At L shaped protection ring 10 of the bottom of convex support ring 9 cover, the bottom cover T shape sealing ring 11 of L shaped protection ring 10.
Claims (1)
1. a combined type inserts sealing device; Mainly form by setting upright joint (1), intubate (2), seal group (3), transition joint (4), O-ring seals (5) and guiding guide shoe (6); Internal thread is arranged at the top setting upright joint (1); Setting upright joint (1) has outer wall to have the end of setting upright of axial groove, and the bottom of setting upright end is a taper seat; There is external screw thread lower end setting upright joint (1), is connected with intubate (2) at the lower end screw thread of setting upright joint (1), it is characterized in that: on the outer wall of intubate (2), be with seal group (3); Lower end screw thread in intubate (2) is connected with transition joint (4), between transition joint (4) and the intubate (2) O-ring seals (5) is arranged; On the outer wall of transition joint (4), be with seal group (3); Lower end screw thread in transition joint (4) is connected with guiding guide shoe (6), between transition joint (4) and the guiding guide shoe (6) O-ring seals (5) is arranged;
Described seal group (3) is made up of concave support ring (7), v-ring (8), convex support ring (9), L shaped protection ring (10) and T shape sealing ring (11); Concave support ring (7), v-ring (8), convex support ring (9), L shaped protection ring (10) and T shape sealing ring (11) are enclosed within intubate (2) or the transition joint (4); It is the bottom that concave support ring (7) is enclosed within the step surface of intubate (2) or transition joint (4); Cover 2～8 v-rings (8) in the bottom of concave support ring (7); The cover convex support ring (9) in the bottom of v-ring (8); Overlap L shaped protection ring (10) in the bottom of convex support ring (9), the bottom cover T shape sealing ring (11) of L shaped protection ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201947922U CN202108462U (en) | 2011-06-10 | 2011-06-10 | Combined insertion sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201947922U CN202108462U (en) | 2011-06-10 | 2011-06-10 | Combined insertion sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202108462U true CN202108462U (en) | 2012-01-11 |
Family
ID=45433898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201947922U Expired - Lifetime CN202108462U (en) | 2011-06-10 | 2011-06-10 | Combined insertion sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202108462U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573210A (en) * | 2012-08-02 | 2014-02-12 | 中国石油化工股份有限公司 | Quick drill composite pipe bridge plug |
| CN104481484A (en) * | 2014-12-26 | 2015-04-01 | 东营市福利德石油科技开发有限责任公司 | Horizontal well segmented intermittent steam huff and puff injection-production integrated pipe column |
| CN104912512A (en) * | 2015-06-29 | 2015-09-16 | 中国海洋石油总公司 | Packing device for inserting pipe |
| CN107605443A (en) * | 2017-09-12 | 2018-01-19 | 中国石油天然气股份有限公司 | CO (carbon monoxide)2Gas driving and injecting process pipe column structure |
| CN114059976A (en) * | 2021-11-24 | 2022-02-18 | 中国石油天然气股份有限公司 | Expanding type inserting device for high-pressure well injection |
-
2011
- 2011-06-10 CN CN2011201947922U patent/CN202108462U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573210A (en) * | 2012-08-02 | 2014-02-12 | 中国石油化工股份有限公司 | Quick drill composite pipe bridge plug |
| CN104481484A (en) * | 2014-12-26 | 2015-04-01 | 东营市福利德石油科技开发有限责任公司 | Horizontal well segmented intermittent steam huff and puff injection-production integrated pipe column |
| CN104912512A (en) * | 2015-06-29 | 2015-09-16 | 中国海洋石油总公司 | Packing device for inserting pipe |
| CN107605443A (en) * | 2017-09-12 | 2018-01-19 | 中国石油天然气股份有限公司 | CO (carbon monoxide)2Gas driving and injecting process pipe column structure |
| CN114059976A (en) * | 2021-11-24 | 2022-02-18 | 中国石油天然气股份有限公司 | Expanding type inserting device for high-pressure well injection |
| CN114059976B (en) * | 2021-11-24 | 2024-01-30 | 中国石油天然气股份有限公司 | Expansion type insertion device for high-pressure well injection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202108462U (en) | Combined insertion sealing device | |
| CN202483565U (en) | Pressurized short section of negative impulse measurement apparatus while drilling | |
| CN201460803U (en) | Self-expanding packer when meeting oil and water | |
| CN202578634U (en) | Switch type track sealing sliding sleeve | |
| CN105804735A (en) | Three-plunger type hydraulic fracturing ground stress measurement system | |
| CN103046896A (en) | Fracturing bridge plug | |
| CN202882841U (en) | Pipe external packer capable of being self-expandable when encountering water or oil | |
| CN203403872U (en) | Multistage fracturing well completion sliding sleeve device | |
| CN109611060B (en) | Floating sieve tube | |
| CN205858333U (en) | A kind of three plug hydraulic fracturing detecting earth stress systems | |
| CN203223203U (en) | Hanging packer for open hole completion pipe string | |
| CN103195389B (en) | A kind of suspension packer for open hole well completion | |
| CN201292816Y (en) | Self-pouring sliding bush closing type cementing machine | |
| CN104405297B (en) | There is the segmented oil drill rocker sealing structure | |
| CN103541700A (en) | Reverse seal type eccentric water distributor | |
| CN203145888U (en) | Removable inserting tube oil-extraction bridge plug and special-purpose inserting tube | |
| CN202300216U (en) | Connecting device for deblocking down-hole string | |
| CN201593393U (en) | Automatic expansion type external pipe packer | |
| CN204899838U (en) | Compound bridging plug of ball cage | |
| CN204984347U (en) | Slip casting tubular column is backfilled with casing annulus cement to no coupling well | |
| CN204782834U (en) | Novel continuous outside of tubes slips connector | |
| CN201225121Y (en) | Oil gas well selective completion tool | |
| CN203594405U (en) | High-temperature and high-pressure large-drift-diameter sleeve hydraulic packer | |
| CN201443352U (en) | Anchoring expansion packer | |
| CN205778710U (en) | A kind of packer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120111 |
|
| CX01 | Expiry of patent term |