CN201428666Y - Multi-stage hydraulic cylinder type packer - Google Patents
Multi-stage hydraulic cylinder type packer Download PDFInfo
- Publication number
- CN201428666Y CN201428666Y CN2009201659311U CN200920165931U CN201428666Y CN 201428666 Y CN201428666 Y CN 201428666Y CN 2009201659311 U CN2009201659311 U CN 2009201659311U CN 200920165931 U CN200920165931 U CN 200920165931U CN 201428666 Y CN201428666 Y CN 201428666Y
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- sleeve
- following
- sliding sleeve
- packer
- upper sliding
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Abstract
The utility model relates to a multi-stage hydraulic cylinder type packer for being used after cementing wells of petroleum gas. The multi-stage hydraulic cylinder type packer comprises a fixing sleeve (1), an upper sliding sleeve (4) and a lower sliding sleeve (5) which are connected on the front end of a body (1), a packer combination sleeved on a lower body (6), a suppressing body (17) and a ball seat (18), wherein the upper sliding sleeve (4) and the lower sliding sleeve (5) are connected in series and form a two-stage hydraulic cylinder with the upper body (1) and the lower body (6) whichare connected in series, a connecting sleeve (7) is fixed on an outer step surface on the lower end of the lower sliding sleeve (5), a lock ring (8) is arranged in a groove of the connecting sleeve (7), the packer combination is composed of a plurality of packers which are connected in series, the compressing body (17) is a normal coupling, and is connected with a lower pressing sleeve (15) through a double-male connector (16), and the ball seat (18) is fixed in the middle of the compressing body (17) through a pin (19). The multi-stage hydraulic cylinder type packer is composed of a plurality of stages of hydraulic cylinders which are connected in series, and the sealing component is alternatively connected with a metal skeleton, the design is novel, the seat seal pressure is high, and the performance is stable.
Description
Technical field
The utility model relates to the solid required packet of completion of petroleum gas, particularly can satisfy a kind of multistage fluid cylinder formula packet of high sealing Capability Requirement, belongs to the downhole tool class.
Background technique
In construction operations such as the solid completion of oil, well workover, packet is used in a large number.But in use there is following problem in traditional packet: 1. required pressure is big during packer set; 2. sealing load does not satisfy engine request.
Summary of the invention
In order to solve the problem that exists in the background technique, the utility model provides a kind of multistage fluid cylinder formula packet, can realize the multistage bloated sealed packer that builds the pressure simultaneously, and multiple-string packer expands simultaneously and seals, thereby satisfies the high demand of the required sealing load of engineering.
For achieving the above object, the technical solution adopted in the utility model is: mainly by the fixed cover that is connected the upper body front end, upper sliding sleeve, low sleeve, be enclosed within down packet on the body make up, build the pressure body and ball seat and form, be fixed with outer step, the front end of upper sliding sleeve is fixed on the step surface of fixed cover lower end; Upper sliding sleeve is enclosed within on the upper body, its inner chamber has step, interior step surface and upper body form and are slidingly matched, upper body has boss at the middle part, the cavity that upper sliding sleeve inner chamber, fixed cover lower end surface and upper body outer surface are formed is divided into two up and down, and upper body leaves pressure transmission hole at following empty cavity position, and the tubing string inner chamber is communicated with following cavity, upper sliding sleeve leaves side opening in the upper plenum position, realizes that upper plenum is communicated with annular space; Upper sliding sleeve has step at outer surface, and the low sleeve front end is fixed on the step surface, and low sleeve is identical with the upper sliding sleeve structure; Following body front end is connected with the upper body lower end with screw thread, and following body front end has boss, boss is divided into two up and down with the cavity of upper sliding sleeve lower end surface, low sleeve internal surface, upper body outer surface and this external surface formation down, following body leaves pressure transmission hole at following empty cavity position, be communicated with the tubing string inner chamber, low sleeve leaves side opening in the upper plenum position, is communicated with annular space; Step surface forms with following body and is slidingly matched in the low sleeve; Connecting sleeve is fixed on outside the low sleeve lower end on the step surface; There is interior step the connecting sleeve lower end, leaves groove on the interior step, and lock ring places in the groove; Packet combination by be enclosed within down last gland on the body, go up packer, middle packer, packer, the last central ring of separating packer and following central ring and the following gland that is fixed on down the body lower end are formed down, last packer, middle packer, following packer directly vulcanize on following body; The body that builds the pressure is conventional box cupling, and it is connected with pressing down to overlap with two tool joint pins, ball seat with dowel fixes in the middle of the body that builds the pressure.
Fixed cover with dowel fixes at the upper body front end.
Upper sliding sleeve is fixed on the fixed cover with shear pin, low sleeve with dowel fixes on upper sliding sleeve, connecting sleeve with dowel fixes on low sleeve.
The body that builds the pressure can connect following pair tool joint pin, convenient and other instruments polyphones.
Between upper body boss and the upper sliding sleeve seal ring is arranged; Step surface has seal ring and upper body to form sealing in the upper sliding sleeve; Following body boss has seal ring and low sleeve sealing; Step surface has seal ring and following body sealing in the low sleeve; The low sleeve lower end has seal ring and following body to form sealing; Ball seat and build the pressure seal ring is arranged between the body.
Lock ring is a trip ring, the inside and outside screw thread that anti-back-off is all arranged, and its outer button is greater than interior button.
For the anti-shear ability of guaranteeing pin is higher than shear pin, require the external diameter of the external diameter of shear pin less than pin.
The utility model major advantage is:
1. adopt the polyphone fluid cylinder, fluid cylinder thrust is multiplied, improve the bloated envelope ability of packet;
2. central ring and packer alternately are connected design and have improved the packet integral sealing effect.
Description of drawings
Fig. 1 is three part-structure schematic representation of the present utility model.
Specific embodiments
The utility model is not subjected to the restriction of following enforcement example, can determine specific embodiment according to the technical solution of the utility model use condition.
Below in conjunction with accompanying drawing the utility model is described in further details.
As shown in Figure 1, the utility model mainly by the fixed cover 2 that is connected upper body 1 front end, upper sliding sleeve 4, low sleeve 5, be enclosed within down packet combination on the body 6, build the pressure body 17 and ball seat 18 form, fixed cover 2 has outer step, and the front end of upper sliding sleeve 4 is fixed on the step surface of fixed cover 2 lower ends; Upper sliding sleeve 4 is enclosed within on the upper body 1, its inner chamber has step, interior step surface and upper body 1 form and are slidingly matched, upper body 1 has boss at the middle part, the cavity that upper sliding sleeve 4 inner chambers, fixed cover 2 lower end surfaces and upper body 1 outer surface are formed is divided into two up and down, and upper body 1 leaves pressure transmission hole at following empty cavity position, and the tubing string inner chamber is communicated with following cavity, upper sliding sleeve 4 leaves side opening in the upper plenum position, realizes that upper plenum is communicated with annular space; Upper sliding sleeve 4 has step at outer surface, and low sleeve 5 front ends are fixed on the step surface, and low sleeve 5 is identical with upper sliding sleeve 4 structures; Following body 6 front ends are connected with upper body 1 lower end with screw thread, and following body 6 front ends have boss, the cavity that boss forms upper sliding sleeve 4 lower end surfaces, low sleeve 5 internal surfaces, upper body 1 outer surface and following body 6 outer surfaces is divided into two up and down, following body 6 leaves pressure transmission hole at following empty cavity position, be communicated with the tubing string inner chamber, low sleeve 5 leaves side opening in the upper plenum position, is communicated with annular space; Step surface forms with following body 6 and is slidingly matched in the low sleeve 5; Connecting sleeve 7 is fixed on outside low sleeve 5 lower ends on the step surface; There is interior step connecting sleeve 7 lower ends, leave groove on the interior step, and lock ring 8 places in the groove; Packet combination by be enclosed within down last gland 9 on the body 6, go up packer 10, middle packer 12, packer 14, the last central ring 11 of separating packer and following central ring 13 and the following gland 15 that is fixed on down body 6 lower ends are formed down, last packer 10, middle packer 12, following packer 14 directly vulcanize on following body 6; The body 17 that builds the pressure is conventional box cupling, and it is connected with following gland 15 with two tool joint pins 16, and ball seat 18 is fixed in the middle of the body 17 that builds the pressure with pin 19.
Can be according to actual needs, to above-mentioned a kind of multistage fluid cylinder formula packet further optimization and/or improvements:
Fixed cover 1 with dowel fixes at upper body 1 front end.
Upper sliding sleeve 4 is fixed on the fixed cover 2 with shear pin 3, low sleeve 5 with dowel fixes on upper sliding sleeve 4, connecting sleeve 7 with dowel fixes on low sleeve 5.
The body 17 that builds the pressure can connect following pair tool joint pin 20, convenient and other instruments polyphones.
Between upper body 1 boss and the upper sliding sleeve 4 seal ring is arranged; Step surface has seal ring and upper body to form sealing in the upper sliding sleeve 4; Following body 6 boss have seal ring and low sleeve 5 sealings; Step surface has seal ring and following body 6 sealings in the low sleeve 5; Low sleeve 5 lower ends have seal ring and following body 6 to form sealing; Ball seat 18 and build the pressure and between the body 17 seal ring is arranged.Except that being sealed into 1 seal ring of following body 6 and low sleeve 5 lower ends, all the other are two seal rings, to guarantee sealing effect, can come quantification according to actual demand during enforcement, can be a plurality of seal rings in the present embodiment.
For ease of lock ring 8 is installed is trip ring, can be the semi-ring of two symmetries also, and the screw thread of anti-back-off is all arranged inside and outside it, and its outer button is greater than interior button.
For the anti-shear ability of guaranteeing pin 19 is higher than shear pin 3, require the external diameter of the external diameter of shear pin 3 less than pin 19.
Above-mentioned upper sliding sleeve 4 and low sleeve 5 form the two-stage fluid cylinder, also can be connected in series multistage similar fluid cylinder again.
The utility model working principle: during on-the-spot the use, this model utility is connected on the bunch tube or other pipe strings on, down to design attitude, pitching and turn on pump circulation, when ball is circulated to ball seat 18, begin in the pipe to build the pressure, drilling fluid is by upper body 1, pressure transmission hole on the following body 6 enters upper sliding sleeve 4 simultaneously, 5 times cavitys of low sleeve, cut off shear pin 3, upper sliding sleeve 4, low sleeve 5 is descending, and promotion connecting sleeve 7, last gland 9 is descending, packer 10 in the promotion, last central ring 11, middle packer 12, following central ring 13, following packer 14 is descending, because gland 15 is fixing down, forces packer 10, middle packer 12, following packer 14 is compressed and expands and then the sealing annular space to annular space; Continue liter and build the pressure, pin 19 is cut off, and ball seat 18 falls into the shaft bottom, and the pipe internal pressure drops to zero.Packer 10, middle packer 12, following packer 14 will be in expansion, closed loop dummy status by tight lock always on this moment under lock ring 8 effects.
Claims (7)
1, a kind of multistage fluid cylinder formula packet, mainly form by the fixed cover (2) that is connected upper body (1) front end, upper sliding sleeve (4), low sleeve (5), the packet combination, the body that builds the pressure (17) and the ball seat (18) that are enclosed within down on the body (6), it is characterized in that: fixed cover (2) has outer step, and the front end of upper sliding sleeve (4) is fixed on the step surface of fixed cover (2) lower end; Upper sliding sleeve (4) is enclosed within on the upper body (1), its inner chamber has step, interior step surface and upper body (1) form and are slidingly matched, upper body (1) has boss at the middle part, the cavity that upper sliding sleeve (4) inner chamber, fixed cover (2) lower end surface and upper body (1) outer surface are formed is divided into two up and down, and upper body (1) leaves pressure transmission hole at following empty cavity position, and the tubing string inner chamber is communicated with following cavity, upper sliding sleeve (4) leaves side opening in the upper plenum position, and upper plenum is communicated with annular space; Upper sliding sleeve (4) has step at outer surface, and low sleeve (5) front end is fixed on the step surface, and low sleeve (5) is identical with upper sliding sleeve (4) structure; Following body (6) front end is connected with upper body (1) lower end with screw thread, and following body (6) front end has boss, the cavity that boss forms upper sliding sleeve (4) lower end surface, low sleeve (5) internal surface, upper body (1) outer surface and following body (6) outer surface is divided into two up and down, following body (6) leaves pressure transmission hole at following empty cavity position, be communicated with the tubing string inner chamber, low sleeve (5) leaves side opening in the upper plenum position, is communicated with annular space; The interior step surface of low sleeve (5) forms with following body (6) and is slidingly matched; Connecting sleeve (7) is fixed on outside low sleeve (5) lower end on the step surface; There is interior step connecting sleeve (7) lower end, leaves groove on the interior step, and lock ring (8) places in the groove; Packet combination by be enclosed within down last gland (9) on the body (6), go up packer (10), middle packer (12), packer (14), the last central ring (11) of separating packer and following central ring (13) and the following gland (15) that is fixed on down body (6) lower end are formed down, last packer (10), middle packer (12), following packer (14) directly vulcanize on following body (6); The body (17) that builds the pressure is conventional box cupling, and it is connected with following gland (15) with two tool joint pins (16), and ball seat (18) is fixed in the middle of the body that builds the pressure (17) with pin (19).
2, a kind of multistage fluid cylinder formula packet according to claim 1 is characterized in that: fixed cover (2) with dowel fixes at upper body (1) front end.
3, a kind of multistage fluid cylinder formula packet according to claim 1, it is characterized in that: upper sliding sleeve (4) is fixed on the fixed cover (2) with shear pin (3), low sleeve (5) with dowel fixes on upper sliding sleeve (4), connecting sleeve (7) with dowel fixes on low sleeve (5).
4, a kind of multistage fluid cylinder formula packet according to claim 1, it is characterized in that: the body that builds the pressure (17) can connect following pair tool joint pin (20), convenient and other instruments polyphones.
5, a kind of multistage fluid cylinder formula packet according to claim 1 is characterized in that: between upper body (1) boss and the upper sliding sleeve (4) seal ring is arranged; The interior step surface of upper sliding sleeve (4) has seal ring and upper body to form sealing; Following body (6) boss has seal ring and low sleeve (5) sealing; The interior step surface of low sleeve (5) has seal ring and following body (6) sealing; Low sleeve (5) lower end has seal ring and following body (6) to form sealing; Between ball seat (18) and the body that builds the pressure (17) seal ring is arranged.
6, a kind of multistage fluid cylinder formula packet according to claim 1, it is characterized in that: lock ring (8) is a trip ring, and the screw thread of anti-back-off is all arranged inside and outside it, its outer button is greater than interior button.
7, a kind of multistage fluid cylinder formula packet according to claim 1, it is characterized in that: the external diameter of shear pin (3) is less than the external diameter of pin (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201659311U CN201428666Y (en) | 2009-07-08 | 2009-07-08 | Multi-stage hydraulic cylinder type packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201659311U CN201428666Y (en) | 2009-07-08 | 2009-07-08 | Multi-stage hydraulic cylinder type packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201428666Y true CN201428666Y (en) | 2010-03-24 |
Family
ID=42032403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201659311U Expired - Fee Related CN201428666Y (en) | 2009-07-08 | 2009-07-08 | Multi-stage hydraulic cylinder type packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201428666Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742100A (en) * | 2013-12-31 | 2014-04-23 | 大庆市福万通石油科技有限公司 | Packer applicable to environment of 120 DEG C and 70 MPa |
| CN103790547A (en) * | 2014-02-11 | 2014-05-14 | 中国石油集团西部钻探工程有限公司 | Suspended packer device |
| CN105587288A (en) * | 2016-03-14 | 2016-05-18 | 中国石油集团西部钻探工程有限公司 | Packer for double-hydraulic-cylinder fracture |
-
2009
- 2009-07-08 CN CN2009201659311U patent/CN201428666Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742100A (en) * | 2013-12-31 | 2014-04-23 | 大庆市福万通石油科技有限公司 | Packer applicable to environment of 120 DEG C and 70 MPa |
| CN103790547A (en) * | 2014-02-11 | 2014-05-14 | 中国石油集团西部钻探工程有限公司 | Suspended packer device |
| CN103790547B (en) * | 2014-02-11 | 2016-06-22 | 中国石油集团西部钻探工程有限公司 | hanging packer device |
| CN105587288A (en) * | 2016-03-14 | 2016-05-18 | 中国石油集团西部钻探工程有限公司 | Packer for double-hydraulic-cylinder fracture |
| CN105587288B (en) * | 2016-03-14 | 2018-03-06 | 中国石油集团西部钻探工程有限公司 | Biliquid cylinder pressure break packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100324 Termination date: 20160708 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |