CN2921265Y - Bridge packer - Google Patents
Bridge packer Download PDFInfo
- Publication number
- CN2921265Y CN2921265Y CN 200620200574 CN200620200574U CN2921265Y CN 2921265 Y CN2921265 Y CN 2921265Y CN 200620200574 CN200620200574 CN 200620200574 CN 200620200574 U CN200620200574 U CN 200620200574U CN 2921265 Y CN2921265 Y CN 2921265Y
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- China
- Prior art keywords
- central tube
- packing element
- bridge
- lower contact
- exterior central
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Abstract
The utility model relates to a bridge packer used by flowing well of oil field and belongs to technical field of oil extraction. A lower interface communicated with a through side-hole is provided on lower part of an upper joint. Upper end of an inner centre tube is arranged on inner centre opening positioning on the lower part of the upper joint and lower of the inner centre tube is arranged inside a lower joint and is communicated with inner centre opening of the lower joint. a outer centre tube is sleeved on the inner centre tube to form a upper ringy hollow channel and is communicated with a upper interface through a connection hole. The upper end of the outer centre tube is disposed on the lower end of the upper joint and the lower end of the outer centre tube is arranged on an anti-rotating ring installed inside the upper part of the lower joint. A lower ringy hollow channel is formed between middle part of the lower joint and the lower part of the inner centre tube and is communicated with the upper ringy hollow channel. The lower ringy hollow channel is communicated with outside of the lower joint by an inlet positioning at the middle of the lower joint. With this new reasonable and compact structure, the bridge packer promotes output of oil well because interlayer interferences of oil well are eliminated by this utility model.
Description
One, technical field:
The utility model relates to the packer in flowing well oil recovery field, oil field, is a kind of bridge-type packer.
Two, background technology:
Because it is serious that flowing well often runs into the problem, particularly some well water outlets of interlayer interference in process of production, and the pressure of water layer is often higher, has had a strong impact on the production of oil well.Owing to structural reason, conventional oil field packer can not address this problem fully.
Three, summary of the invention:
The utility model provides a kind of bridge-type packer, has overcome the deficiency of above-mentioned prior art, is a kind of downhole tool that designs in order to solve interlayer interference.The utility model is used the oil that can realize in the same well and water from different passage extraction separately or with other packer, solves the problem of interlayer interference with this.
The technical solution of the utility model realizes by following measure: a kind of bridge-type packer, it comprises top connection, inner central tube, exterior central tube, expansion controlling ring-shaped insert and lower contact, last interface is arranged at the top of top connection, the middle part of top connection has mutually, and obstructed annular space connects hole and side through hole, there is lower interface the bottom of top connection and communicates with side through hole, during the upper end of inner central tube is installed in the bottom of top connection on the pit of the stomach, the lower end of inner central tube is installed in the inside of lower contact and communicates with the interior middle pit of the stomach of lower contact, exterior central tube is enclosed within and forms annulus access on the inner central tube, and connect the hole by annular space annulus access is communicated with last interface, the upper end of exterior central tube is installed in the lower end of top connection, the lower end of exterior central tube is installed on the expansion controlling ring-shaped insert, and expansion controlling ring-shaped insert is installed in the upper inner of lower contact, form annulus access down between the middle part of lower contact and the bottom of inner central tube, last annulus access communicates with following annulus access, has import will descend annulus access and the outside connection of lower contact at the middle part of lower contact.
Be further optimization and/or improvements below to above-mentioned technical solutions of the utility model:
The bottom of above-mentioned exterior central tube can be set with glue tube base, is set with packing element at the middle part of exterior central tube, is set with the transfer ring on the top of exterior central tube.
Above-mentioned transfer ring can be installed in the lower end of top connection by screw.
Above-mentioned glue tube base can be fixedly mounted on the exterior central tube by the safety shear pin.
Between above-mentioned glue tube base and exterior central tube, can be useful on the O shape circle of sealing.
Above-mentioned packing element can comprise limit packing element and middle packing element, and the middle packing element of suit respectively is set with the limit packing element up and down and separates with the earrings spacer ring in the middle part of exterior central tube.
Between above-mentioned expansion controlling ring-shaped insert and lower contact, can install and be used to prevent the key that rotates.
Between the bottom of the lower end of above-mentioned inner central tube and lower contact, can be useful on the 2nd O shape circle of sealing.
The utility model reasonable and compact in structure utilizes this bridge-type packer can solve interlayer interference, reaches the effect of eliminating the oil well interlayer interference, improving oil well output.
Four, description of drawings:
Accompanying drawing 1 partly cuts open structural representation for the master of the utility model most preferred embodiment looks,
Accompanying drawing 2 for the B-B of accompanying drawing 1 to analysing and observe the structure for amplifying schematic diagram,
Accompanying drawing 3 for the C-C of accompanying drawing 1 to analysing and observe the structure for amplifying schematic diagram,
Accompanying drawing 4 is a user mode structural representation of the present utility model,
Coding in the accompanying drawing is respectively: 1 is top connection, and 2 are the transfer ring, and 3 is screw, 4 is inner central tube, and 5 is exterior central tube, and 6 is the limit packing element, 7 is spacer ring, and 8 is middle packing element, and 9 is glue tube base, 10 is O shape circle, and 11 is key, and 12 is expansion controlling ring-shaped insert, 13 is the 2nd O shape circle, and 14 are lower contact, and 15 is the releasing type packer, 16 is sleeve pipe, and 17 is oil pipe, and 18 are the kill-job sliding sleeve, 19 are the circulation sliding sleeve, and 20 is ball-receiver, and 21 is the utility model bridge-type packer, 22 are the sealing intubate, 23 is guide head, and 24 is the artificial bottom of a well, and 25 is oil reservoir, 26 is water layer, and 27 is safe shear pin.
Five, the specific embodiment:
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
Shown in accompanying drawing 1 to 3, this bridge-type packer comprises top connection 1, inner central tube 4, exterior central tube 5, expansion controlling ring-shaped insert 12 and lower contact 14, last interface is arranged at the top of top connection 1, the middle part of top connection 1 has mutually, and obstructed annular space connects hole and side through hole, there is lower interface the bottom of top connection 1 and communicates with side through hole, during the upper end of inner central tube 4 is installed in the bottom of top connection 1 on the pit of the stomach, the lower end of inner central tube 4 is installed in the bottom of lower contact 1 and communicates with the interior middle pit of the stomach of lower contact 1, exterior central tube 5 is enclosed within on the inner central tube 4 and forms annulus access, and connect the hole by annular space annulus access is communicated with last interface, the upper end of exterior central tube 5 is installed in the lower end of top connection 1, the lower end of exterior central tube 5 is installed on the expansion controlling ring-shaped insert 12, and expansion controlling ring-shaped insert 12 is installed in the upper inner of lower contact 14, form annulus access down between the bottom of the middle part of lower contact 14 and inner central tube 4, last annulus access communicates with following annulus access, has import will descend annulus access and lower contact 14 outside connections at the middle part of lower contact 14.
Can according to actual needs above-mentioned bridge-type packer be made further optimization and/or improvements:
In order further to improve performance of the present utility model, shown in accompanying drawing 1 to 3: be set with glue tube base 9 in the bottom of exterior central tube 5, be set with packing element, be set with transfer ring 2 on the top of exterior central tube 5 at the middle part of exterior central tube 5; Between glue tube base 9 and exterior central tube 5, be useful on the O shape circle 10 of sealing; Packing element comprises limit packing element 6 and middle packing element 8, respectively is set with limit packing element 6 up and down and separates with spacer ring 7 at the middle packing element 8 of exterior central tube 5 middle part suits; Between the bottom of the lower end of inner central tube 4 and lower contact 4, be useful on the 2nd O shape circle 13 of sealing; So all be in order to play further excellent sealing effect.
As shown in Figure 1, transfer ring 2 preferably is fixedly mounted on the lower end of top connection 1 by screw 3.
As shown in Figure 1, glue tube base 9 is fixedly mounted on the exterior central tube 5 by safety shear pin 27, its load is not at first to act on the packing element when transferring tubing string load and set like this, but act on the safe shear pin 3, the shear load of safe shear pin 27 is greater than the required load of first envelope of device packing element, only set substantially, and just can set under the safe shear pin situation of being cut off, to guarantee when setting, having enough seating sealing loads to pass on the lower packet at lower packet.
As shown in Figure 1, install between expansion controlling ring-shaped insert 2 and the lower contact 4 and be used to prevent the key 11 that rotates, be convenient to transmit torque, and carry out supporting use with the packer that needs rotation pipeline to set by oil pipe.
In the utility model: between top connection 1 and the exterior central tube 5, all be to adopt the tubing round thread of prior art to link to each other between top connection 1 and the inner central tube 4.
Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
One of use of the present utility model is as follows: when workover treatment, be lowered to (from bottom to top by end packer (connecing sealing intubate 22) by design if be lowered to 15 completion tubular column foots of releasing type packer, connect oil pipe, the utility model bridge-type packer 21, ball-receiver 20, circulation sliding sleeve 19, kill-job sliding sleeve 18, oil pipe 17, tubing hanger is formed) pipe string (seeing accompanying drawing 4), set then, lower packet (retrievable), sit well head, two packers separate oil reservoir 25 and water layer 16, replace out in the well mud and should close by the circulation sliding sleeve by the sliding sleeve of circulation shown in Fig. 4 19, make oil well recover its blowing ability.The water of lower packet bottom is by the lower packet central tube, oil pipe in the connection between lower packet enters the utility model bridge-type packer 21 inner central tubes 4, at top connection 1 place by flowing to top oil jacket annular space output after the side through hole commutation: the fluid between two packers (being generally oil) enters last annulus access between inner central tube 4 and the exterior central tube 5 by the hole of advancing of the utility model bridge-type packer 21 lower contacts 14, connect orifice flow at top connection 1 place by annular space and go into top oil pipe 7 outputs, thereby realize (oil, water) branch is adopted, and reaches to eliminate the oil well interlayer interference, improve the effect of oil well output.
Claims (10)
1, a kind of bridge-type packer, it is characterized in that comprising top connection, inner central tube, exterior central tube, expansion controlling ring-shaped insert and lower contact, last interface is arranged at the top of top connection, the middle part of top connection has mutually, and obstructed annular space connects hole and side through hole, there is lower interface the bottom of top connection and communicates with side through hole, during the upper end of inner central tube is installed in the bottom of top connection on the pit of the stomach, the lower end of inner central tube is installed in the inside of lower contact and communicates with the interior middle pit of the stomach of lower contact, exterior central tube is enclosed within and forms annulus access on the inner central tube, and connect the hole by annular space annulus access is communicated with last interface, the upper end of exterior central tube is installed in the lower end of top connection, the lower end of exterior central tube is installed on the expansion controlling ring-shaped insert, and expansion controlling ring-shaped insert is installed in the upper inner of lower contact, form annulus access down between the middle part of lower contact and the bottom of inner central tube, last annulus access communicates with following annulus access, has import will descend annulus access and the outside connection of lower contact at the middle part of lower contact.
2, bridge-type packer according to claim 1 is characterized in that the bottom of exterior central tube is set with glue tube base, is set with packing element at the middle part of exterior central tube, is set with the transfer ring on the top of exterior central tube.
3, bridge-type packer according to claim 2 is characterized in that the transfer ring is installed in the lower end of top connection by screw.
4, according to claim 2 or 3 described bridge-type packers, it is characterized in that glue tube base is fixedly mounted on the exterior central tube by the safety shear pin.
5, bridge-type packer according to claim 4 is characterized in that an O shape that is useful on sealing between glue tube base and the exterior central tube is enclosed.
6, according to claim 2 or 3 described bridge-type packers, it is characterized in that packing element comprises limit packing element and middle packing element, the middle packing element of suit respectively is set with the limit packing element up and down and separates with the earrings spacer ring in the middle part of exterior central tube.
7, bridge-type packer according to claim 5 is characterized in that packing element comprises limit packing element and middle packing element, and the middle packing element of suit respectively is set with the limit packing element up and down and separates with spacer ring in the middle part of exterior central tube.
8,, it is characterized in that being equipped with between expansion controlling ring-shaped insert and the lower contact and be used to prevent the key that rotates according to claim 1 or 2 or 3 described bridge-type packers.
9, bridge-type packer according to claim 6 is characterized in that being equipped with between expansion controlling ring-shaped insert and the lower contact and is used to prevent the key that rotates.
10, bridge-type packer according to claim 9 is characterized in that being useful between the bottom of the lower end of inner central tube and lower contact the 2nd O shape circle of sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620200574 CN2921265Y (en) | 2006-06-29 | 2006-06-29 | Bridge packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620200574 CN2921265Y (en) | 2006-06-29 | 2006-06-29 | Bridge packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2921265Y true CN2921265Y (en) | 2007-07-11 |
Family
ID=38253744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620200574 Expired - Lifetime CN2921265Y (en) | 2006-06-29 | 2006-06-29 | Bridge packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2921265Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608538B (en) * | 2009-07-24 | 2012-12-05 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | External packer of expanding sealing sleeve of internal pipe string tool and construction technique |
| CN104265230A (en) * | 2014-07-17 | 2015-01-07 | 阜宁县宏达石化机械有限公司 | Compensation type sealing mechanism of underground packer and bridge plug for oil field |
| CN104295261A (en) * | 2014-10-17 | 2015-01-21 | 中国石油天然气股份有限公司 | Self-seal-checking packer |
| CN104612624A (en) * | 2015-01-06 | 2015-05-13 | 陈爱民 | Staged fracturing method for degradable bridge plug, timing sliding sleeve, staged fracturing tubular column and strata |
-
2006
- 2006-06-29 CN CN 200620200574 patent/CN2921265Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608538B (en) * | 2009-07-24 | 2012-12-05 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | External packer of expanding sealing sleeve of internal pipe string tool and construction technique |
| CN104265230A (en) * | 2014-07-17 | 2015-01-07 | 阜宁县宏达石化机械有限公司 | Compensation type sealing mechanism of underground packer and bridge plug for oil field |
| CN104295261A (en) * | 2014-10-17 | 2015-01-21 | 中国石油天然气股份有限公司 | Self-seal-checking packer |
| CN104612624A (en) * | 2015-01-06 | 2015-05-13 | 陈爱民 | Staged fracturing method for degradable bridge plug, timing sliding sleeve, staged fracturing tubular column and strata |
| CN104612624B (en) * | 2015-01-06 | 2018-02-27 | 陈爱民 | Degradable bridging plug, timing sliding sleeve, fracturing strings and stratum staged fracturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070711 |
|
| EXPY | Termination of patent right or utility model |