CN104047563B - Deblocking packer is pressed under hydraulic setting - Google Patents
Deblocking packer is pressed under hydraulic setting Download PDFInfo
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- CN104047563B CN104047563B CN201410297238.5A CN201410297238A CN104047563B CN 104047563 B CN104047563 B CN 104047563B CN 201410297238 A CN201410297238 A CN 201410297238A CN 104047563 B CN104047563 B CN 104047563B
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- slips
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Abstract
The present invention relates to downhole packing device technique field, be to press deblocking packer under a kind of hydraulic setting, it includes mandrel, locking key urceolus, deblocking ratchet, ratchet mandrel, locking key, seal assembly, lower slips seat, slips and piston assembly；The most integrally be fixed with in the external wall of upper portion of mandrel that external diameter is sequentially reduced topping bar and getting out of a predicament or an embarrassing situation, annular groove is had in the bottom got out of a predicament or an embarrassing situation, crown pawl upward is distributed on outer wall of getting out of a predicament or an embarrassing situation above annular groove, the upper end inwall of locking key urceolus is integrally fixed with the internal projecting ring matched with outer wall of getting out of a predicament or an embarrassing situation.Present configuration is reasonable and compact, easy to use, use hydraulic way just can complete to set operation, it is not necessary to dynamic tubing string, simple to operate, bear pressure high, it is ensured that Oil/gas Well safety in recovery process, seal and set effective, set stable, can effectively prevent sand from burying, chip precipitates, it is ensured that deblocking is smoothed out, and the reliability, the safety that set and unseal can be effectively ensured.
Description
Technical field
The present invention relates to downhole packing device technique field, be to press deblocking packer under a kind of hydraulic setting.
Background technology
Packer is extremely important instrument during exploitation of oil-gas field, it is possible to normal for Oil/gas Well produces and various technological measures offer effective machinery means.Progress along with petroleum exploration and development, more Oil/gas Well needs to improve yield by the enforcement of down-hole technological measure, bury deep reservoir due to top by huge thickness rock cover extruding, the finest and close, need to carry out well stimulation and just can obtain stable high yield and stable yields.When subterranean strata carries out the measures such as acid fracturing, ground cryogen is quickly injected in down-hole string, after the fluid temperature reduction being injected into, owing to the reason tubing string entirety expanded with heat and contract with cold to shorten, is equivalent to carry on tubing string.At present, the removing seal for packer mode often used has three kinds: the first is permanent, and hydraulic cylinder extruding rubber parts seals, dependable performance, but releases and need milling；The second rotates and sets pressurization extruding rubber parts sealing, above proposes deblocking, it is impossible to bear tubing string pulling force upwards, above carry and can unseal, cause packer to lose efficacy；The third is that hydraulic cylinder extruding rubber parts seals, and relies on hydraulic anchor to prevent upper pulling force from surprisingly unsealing, and deblocking relies on pulling force upwards, but hydraulic anchor can make removing seal for packer when losing efficacy, hydraulic anchor is on packing element top, if waterpower anchor fluke can not be regained smoothly, it is also possible to cause tubing string by card.These all directly influence oil gas well stimulation success rate and development cost.
Summary of the invention
The invention provides and press deblocking packer under a kind of hydraulic setting, overcome the deficiency of above-mentioned prior art, its rubber seal that can effectively solve existing packer needs the problem that the using effect such as milling or unexpected deblocking is undesirable.
The technical scheme is that and realized by following measures: under a kind of hydraulic setting, press deblocking packer, including mandrel, locking key urceolus, deblocking ratchet, ratchet mandrel, locking key, seal assembly, lower slips seat, slips and piston assembly；nullThe most integrally be fixed with in the external wall of upper portion of mandrel that external diameter is sequentially reduced topping bar and getting out of a predicament or an embarrassing situation，Annular groove is had in the bottom got out of a predicament or an embarrassing situation，Crown pawl upward is distributed on outer wall of getting out of a predicament or an embarrassing situation above annular groove，Integrally it is fixed with, on the upper end inwall of locking key urceolus, the internal projecting ring matched with outer wall of getting out of a predicament or an embarrassing situation，Crown pawl upward is distributed on locking key urceolus below internal projecting ring，The crown that the pawl being distributed on the inwall of deblocking ratchet and get out of a predicament or an embarrassing situation on outer wall matches pawl down，The crown that with pawl locking key outer tube inner wall on match pawl down is distributed on the outer wall of deblocking ratchet，Deblocking ratchet is arranged on the locking key urceolus below internal projecting ring Nei by pawl and is arranged on by pawl on getting out of a predicament or an embarrassing situation above annular groove，Fixedly mount, on locking key outer tube inner wall below deblocking ratchet, the back-up ring that restricted deblocking ratchet moves，Upper installation annular groove and lower installation annular groove that internal diameter increases successively is had on locking key urceolus below back-up ring，The upper inside wall of ratchet mandrel has and the installation groove of the annular matched of getting out of a predicament or an embarrassing situation，The external wall of upper portion of ratchet mandrel is integrally fixed with limited ring dais，The corresponding ratchet mandrel installing groove top is fixedly installed togather by deblocking shear pin with the bottom got out of a predicament or an embarrassing situation，Upper end edge even circumferential at ratchet mandrel is installed with the locking key of at least two，Locking key is arc body，The lateral part of locking key is the taper of outer narrow inner width，Locking key there is opening axial resilient key outwardly groove is installed，In resilient key installs groove, resilient key is installed，The upper end of resilient key offsets with the upper surface of upper installation annular groove，The lower end of resilient key is positioned at inside the upper end of ratchet mandrel，There is sealing that annular groove is installed in the external wall of upper portion of seal assembly，Seal assembly is sleeved on ratchet mandrel and seals installation annular groove and is fixedly installed togather with lower installation annular groove，The inner small and outside big taper ring cavity matched with locking key is formed between upper surface and the upper surface inside seal assembly inside lower installation annular groove，The lower end of seal assembly is installed with upper slips seat，The upper slips seat having annular on the bottom outer wall of upper slips seat installs groove，It is tapered slope wide at the top and narrow at the bottom that upper slips seat installs the upper surface of groove，Install at upper slips seat and be integrally fixed with upper slips seat lug on groove，The frustum that upper slips seat lug is big up and small down，The lower slips seat having annular in the external wall of upper portion of lower slips seat installs groove，It is up-narrow and down-wide tapered slope that lower slips seat installs the lower surface of groove，Install at lower slips and be integrally fixed with lower slips seat lug on groove，Lower slips seat lug is up-narrow and down-wide frustum，Slips is tubular，Slips has the most interlaced slot，The upper suspension groove matched with upper slips seat lug and lower slips seat lug and lower suspension groove is had respectively in the upper inside wall of slips and lower inner wall，Upper slips seat lug and lower slips seat lug lay respectively in suspension groove and lower suspension groove，The upper surface of slips and lower surface are respectively the inclined-plane that the tapered slope of the tapered slope and lower slips seat installation groove lower surface of installing groove upper surface with upper slips seat matches，Slips shear pin it is installed with between the top of the bottom of slips and lower slips seat，Crown pawl down is distributed in the external wall of upper portion of slips，Crown pawl upward is distributed on the bottom outer wall of slips，The lower inner wall of lower slips seat has groove under annular installation，The upper surface installing lower groove is up-narrow and down-wide taper surface，The outer wall of lower slips seat is fixedly installed togather by setting shear pin with the upper end of piston assembly，Piston assembly includes piston cylinder，The lower end of lower slips seat is fixedly installed togather with the outer wall of the piston cylinder of piston assembly，Pressure transmission passage is had between mandrel inside and piston assembly，Upper slips seat、Lower slips seat、Slips and piston assembly are set on ratchet mandrel，Lower slips seat、The conical cavity of annular is formed between piston cylinder and ratchet mandrel，It is set with spring base in the conical cavity of piston cylinder upper end，The ratchet lock dog that under being set with in the top of conical cavity and installing, the taper surface of groove matches，In toroidal cavity between ratchet lock dog and spring base, spring is installed，Crown pawl down is distributed on the inwall of ratchet lock dog，Crown pawl upward is distributed on ratchet mandrel above ratchet lock dog，The lower inner wall of piston cylinder is integrally fixed with land in the piston that internal diameter and ratchet outside diameter of mandrel match，It is installed with on ratchet mandrel outer wall above land in piston
C
Type ring, the inwall of piston assembly is fixedly installed togather with the bottom outer wall of mandrel, the bottom outer wall of ratchet mandrel respectively.
Be presented herein below to foregoing invention technical scheme optimize further or
/
And improvement:
Above-mentioned seal assembly includes ring on packing element, packing element inner sleeve, upper packing element, middle packing element and lower rubber cylinder；nullThere is sealing that annular groove is installed on packing element in the external wall of upper portion of ring，Packing element upper ring cap is contained on ratchet mandrel and seals installation annular groove and is fixedly installed togather with lower installation annular groove，Slip toroidal cavity is formed between ring and ratchet mandrel on packing element，The inner small and outside big taper ring cavity matched with locking key is formed between upper surface inside ring on upper surface inside lower installation annular groove and packing element，Packing element is integrally fixed with on the lower end inner wall of ring land in suspension，The outer land of suspension integrally it is fixed with on the upper end outer wall of packing element inner sleeve，The internal diameter of packing element inner sleeve matches with the external diameter of ratchet mandrel，Hang outer land and be positioned at the slip toroidal cavity above suspension land seat in suspension land，The lower end outer wall of packing element inner sleeve is fixedly installed togather with the upper end inwall of upper slips seat，Packing element is set with packing element on set in the packing element of the supreme slip spider of ring the most successively、Middle packing element and lower rubber cylinder，Middle packing element is the annular frustum of inner wide and outer narrow，The lower surface of upper packing element is the inclined-plane that the upper surface with middle packing element matches，The upper surface of lower rubber cylinder is the inclined-plane that the lower surface with middle packing element matches，On packing element, the lower end of ring offsets with the upper end of upper packing element，The upper end of upper slips seat offsets with the lower end of lower rubber cylinder.
It is installed with sealing ring on the upper end inwall of above-mentioned packing element inner sleeve, hangs and on the outer wall of outer land, be installed with sealing ring, between lower end and the upper end of upper slips seat of packing element inner sleeve, be installed with sealing ring；Or
/
With, sealing and annular groove is installed is threadably secured with lower installation annular groove and is installed together, the upper end inwall of the lower end outer wall of packing element inner sleeve and upper slips seat is threadably secured and is installed together.
Above-mentioned piston assembly includes piston cylinder, piston urceolus, pressure tube and piston lower contact；nullThe outer wall of lower slips seat is fixedly installed togather by setting shear pin with piston urceolus，The lower inner wall of piston urceolus is integrally fixed with land in the installation of annular，In installing, the inwall of land is fixedly installed togather with the bottom outer wall of ratchet mandrel，Piston cylinder is positioned at installs the toroidal cavity that the piston urceolus above land is formed with ratchet mandrel，The bottom outer wall of piston cylinder is integrally fixed with external diameter and land outside the piston of piston urceolus diameter compatible，Top bar installing hole and installing hole of getting out of a predicament or an embarrassing situation that internal diameter is sequentially reduced is had in the upper inside wall of piston lower contact，The lower end of ratchet mandrel is positioned at installing hole of topping bar，The bottom outer wall of inwall and mandrel that the lower end of mandrel is positioned at get out of a predicament or an embarrassing situation installing hole and installing hole of getting out of a predicament or an embarrassing situation is fixedly installed togather，Axial up-small and down-big hole of topping bar is had in land in installing，Up big and down small the get out of a predicament or an embarrassing situation hole corresponding with hole of topping bar is had in the top of piston lower contact，There is the radial direction through hole communicated with hole of getting out of a predicament or an embarrassing situation the get out of a predicament or an embarrassing situation lower end in hole of correspondence，External diameter is installed and hole macropore internal diameter and the pressure tube of hole macropore diameter compatible of getting out of a predicament or an embarrassing situation of topping bar in the macropore in the macropore in hole of topping bar and hole of getting out of a predicament or an embarrassing situation，There is axial passage the inside of pressure tube，It is installed with plug in the outer end of radial direction through hole，Top bar the aperture in hole、Axial passage、Get out of a predicament or an embarrassing situation the aperture in hole、The inner of radial direction through hole is connected and forms pressure transmission passage，The inwall of land in piston、Sealing ring it is installed with respectively on the outer wall of the outer land of piston，It is installed with sealing ring between land and ratchet mandrel in An Zhuaning，Top bar the macropore inwall in hole and the macropore inwall in hole of getting out of a predicament or an embarrassing situation respectively and is installed with sealing ring between the outer wall of pressure tube.
The lower end of above-mentioned ratchet mandrel and top bar and be installed with sealing ring between installing hole inwall, the lower end of mandrel and get out of a predicament or an embarrassing situation and be installed with sealing ring between installing hole inwall；Or
/
With, in installing, the inwall of land is threadably secured with the bottom outer wall of ratchet mandrel and is installed together, and the bottom outer wall of the inwall of installing hole of getting out of a predicament or an embarrassing situation and mandrel is threadably secured and is installed together.
It is installed with steady pin between locking key urceolus and deblocking ratchet below above-mentioned internal projecting ring；Or
/
With, deblocking ratchet and ratchet lock dog there is the most interlaced slot respectively；Or
/
With, corresponding limited ring dais has balance pipe on the ratchet mandrel installing below groove.
It is installed with sealing ring between lower end and the outer wall of piston cylinder of above-mentioned lower slips seat；Or
/
With, the lower end of lower slips seat is threadably secured with the outer wall of piston cylinder and is installed together, and the upper end of mandrel has female thread, the lower end of piston lower contact to have external screw thread.
Present configuration is reasonable and compact, easy to use, use hydraulic way just can complete to set operation, it is not necessary to dynamic tubing string, simple to operate, bear pressure high, it is ensured that Oil/gas Well safety in recovery process, seal and set effective, set stable, can effectively prevent sand from burying, chip precipitates, it is ensured that deblocking is smoothed out, and the reliability, the safety that set and unseal can be effectively ensured.
Accompanying drawing explanation
Accompanying drawing
1
Top half master for preferred embodiment regards half section structural representation.
Accompanying drawing
2
The latter half for preferred embodiment is main regarding half section structural representation.
Accompanying drawing
3
Master for locking key of the present invention regards structure for amplifying schematic diagram.
Accompanying drawing
4
For accompanying drawing
3
Plan structure schematic diagram.
Accompanying drawing
5
For accompanying drawing
3
In
A-A
To sectional structure schematic diagram.
Coding in accompanying drawing is respectively as follows:
1
For mandrel,
2
For topping bar,
3
For getting out of a predicament or an embarrassing situation,
4
For annular groove,
5
For locking key urceolus,
6
For internal projecting ring,
7
For unsealing ratchet,
8
For back-up ring,
9
For ratchet mandrel,
10
For installing groove,
11
For limited ring dais,
12
For unsealing shear pin,
13
For locking key,
14
For resilient key, groove is installed,
15
For resilient key,
16
For upper slips seat,
17
For upper slips seat, groove is installed,
18
For upper slips seat lug,
19
For lower slips seat,
20
For lower slips, groove is installed,
21
For lower slips seat lug,
22
For slips,
23
For slot,
24
For slips shear pin,
25
For installing lower groove,
26
For setting shear pin,
27
For piston cylinder,
28
For conical cavity,
29
For spring base,
30
For ratchet lock dog,
31
For spring,
32
For land in piston,
33
For
C
Type ring,
34
For ring on packing element,
35
For slip toroidal cavity,
36
For hanging interior land,
37
For hanging outer land,
38
For middle packing element,
39
For lower rubber cylinder,
40
For upper packing element,
41
For packing element inner sleeve,
42
For sealing ring,
43
For installing interior land,
44
For piston urceolus,
45
For the outer land of piston,
46
For piston lower contact,
47
For hole of topping bar,
48
For hole of getting out of a predicament or an embarrassing situation,
49
For radial direction through hole,
50
For pressure tube,
51
For axial passage,
52
For plug,
53
For steady pin,
54
For balance pipe.
Detailed description of the invention
The present invention is not limited by following embodiment, can determine specific embodiment according to technical scheme and practical situation.
In the present invention, for the ease of describing, the description of the relative position relation of each parts is all according to Figure of description
1
Butut mode be described, such as: the position relationship of upper and lower, left and right etc. is based on what the Butut direction of Figure of description determined.
Below in conjunction with embodiment and accompanying drawing, the invention will be further described:
Such as accompanying drawing
1
、
2
、
3
、
4
、
5
Shown in, press deblocking packer to include mandrel under this hydraulic setting
1
, locking key urceolus
5
, deblocking ratchet
7
, ratchet mandrel
9
, locking key
13
, seal assembly, lower slips seat
19
, slips
22
And piston assembly；Mandrel
1
External wall of upper portion on be the most integrally fixed with that external diameter is sequentially reduced top bar
2
With get out of a predicament or an embarrassing situation
3
, getting out of a predicament or an embarrassing situation
3
Bottom have annular groove
4
, at annular groove
4
Getting out of a predicament or an embarrassing situation of top
3
Crown pawl upward, locking key urceolus are distributed on outer wall
5
Upper end inwall on be integrally fixed with and get out of a predicament or an embarrassing situation
3
The internal projecting ring that outer wall matches
6
, internal projecting ring
6
The locking key urceolus of lower section
5
On crown pawl upward be distributed, unseal ratchet
7
Inwall on be distributed and get out of a predicament or an embarrassing situation
3
The crown that pawl on outer wall matches pawl down, unseals ratchet
7
Outer wall on be distributed and locking key urceolus
5
The crown that pawl on inwall matches pawl down, unseals ratchet
7
It is arranged on internal projecting ring by pawl
6
The locking key urceolus of lower section
5
In and be arranged on annular groove by pawl
4
Getting out of a predicament or an embarrassing situation of top
3
On, at deblocking ratchet
7
The locking key urceolus of lower section
5
Restricted deblocking ratchet is fixedly mounted on inwall
7
The back-up ring of movement
8
, back-up ring
8
The locking key urceolus of lower section
5
On have the upper installation annular groove and lower installation annular groove, ratchet mandrel that internal diameter increases successively
9
Upper inside wall have and get out of a predicament or an embarrassing situation
3
The installation groove of the annular matched
10
, at ratchet mandrel
9
External wall of upper portion on be integrally fixed with limited ring dais
11
, corresponding installation groove
10
The ratchet mandrel on top
9
With get out of a predicament or an embarrassing situation
3
Bottom by deblocking shear pin
12
It is fixedly installed togather, at ratchet mandrel
9
Upper end edge even circumferential be installed with the locking key of at least two
13
, locking key
13
For arc body, locking key
13
Lateral part be the taper of outer narrow inner width, in locking key
13
On have opening axial resilient key outwardly that groove is installed
14
, at resilient key, groove is installed
14
Resilient key is inside installed
15
, resilient key
15
The upper surface of upper end and upper installation annular groove offset, resilient key
15
Lower end be positioned at ratchet mandrel
9
Upper end inside, the external wall of upper portion of seal assembly has sealing install annular groove, seal assembly is sleeved on ratchet mandrel
9
Go up and seal installation annular groove to be fixedly installed togather with lower installation annular groove, between upper surface and the upper surface inside seal assembly inside lower installation annular groove, form inner small and outside big and locking key
13
The taper ring cavity matched, the lower end of seal assembly is installed with upper slips seat
16
, upper slips seat
16
Bottom outer wall on have annular upper slips seat install groove
17
, upper slips seat installs groove
17
Upper surface be tapered slope wide at the top and narrow at the bottom, upper slips seat install groove
17
Upper integrally it is fixed with upper slips seat lug
18
, upper slips seat lug
18
Big up and small down frustum, lower slips seat
19
External wall of upper portion on have annular lower slips seat install groove
20
, lower slips seat installs groove
20
Lower surface be up-narrow and down-wide tapered slope, lower slips install groove
20
Upper integrally it is fixed with lower slips seat lug
21
, lower slips seat lug
21
For up-narrow and down-wide frustum, slips
22
For tubular, at slips
22
On have the most interlaced slot
23
, slips
22
Upper inside wall and lower inner wall on have respectively and upper slips seat lug
18
With lower slips seat lug
21
The upper suspension groove matched and lower suspension groove, upper slips seat lug
18
With lower slips seat lug
21
Lay respectively in suspension groove and lower suspension groove, slips
22
Upper surface and lower surface be respectively and upper slips seat install groove
17
The tapered slope of upper surface and lower slips seat install groove
20
The inclined-plane that the tapered slope of lower surface matches, at slips
22
Bottom and lower slips seat
19
Top between be installed with slips shear pin
24
, slips
22
External wall of upper portion on crown pawl down, slips are distributed
22
Bottom outer wall on crown pawl upward, lower slips seat are distributed
19
Lower inner wall have annular installation under groove
25
, lower groove is installed
25
Upper surface be up-narrow and down-wide taper surface, lower slips seat
19
The upper end of outer wall and piston assembly by setting shear pin
26
Being fixedly installed togather, piston assembly includes piston cylinder
27
, lower slips seat
19
The piston cylinder of lower end and piston assembly
27
Outer wall be fixedly installed togather, mandrel
1
Pressure transmission passage, upper slips seat is had between inside and piston assembly
16
, lower slips seat
19
, slips
22
It is set in ratchet mandrel with piston assembly
9
On, lower slips seat
19
, piston cylinder
27
With ratchet mandrel
9
Between formed annular conical cavity
28
, at piston cylinder
27
The conical cavity of upper end
28
Inside it is set with spring base
29
, at conical cavity
28
Top in be set with and install lower groove
25
The ratchet lock dog that matches of taper surface
30
, at ratchet lock dog
30
With spring base
29
Between cavity in spring is installed
31
, ratchet lock dog
30
Inwall on crown pawl down is distributed, at ratchet lock dog
30
The ratchet mandrel of top
9
On crown pawl upward is distributed, at piston cylinder
27
Lower inner wall on be integrally fixed with internal diameter and ratchet mandrel
9
Land in the piston that external diameter matches
32
, land in piston
32
The ratchet mandrel of top
9
It is installed with on outer wall
C
Type ring
33
, the inwall of piston assembly is respectively and mandrel
1
Bottom outer wall, ratchet mandrel
9
Bottom outer wall be fixedly installed togather.Ratchet mandrel
9
With deblocking ratchet
7
With mandrel
1
It is all hollow tubular structure, only because of ratchet mandrel
9
With deblocking ratchet
7
On pawl is distributed, be therefore ratchet mandrel
9
With deblocking ratchet
7
；Resilient key
15
For existing known technology.
When needs set, first lower end of the present invention is implemented the most stifled, to mandrel
1
Inner chamber is suppressed, and pressure promotes the piston cylinder of piston assembly by pressure transmission passage
27
Upwards eject, when pressure is sufficiently large, cuts off and set shear pin
26
, band flexible spring seat
29
, spring
31
, lower slips seat
19
, slips
22
, upper slips seat
16
Move up crush seal assembly to be allowed to expand, when seal assembly expand into and is in close contact with peripheral internal surface of sleeve pipe, the lower slips seat moved up
19
Slips shear pin
24
Cut off, and continue to move up, due to upper slips seat
16
Lower surface and lower slips seat
19
Upper surface be and slips
22
The inclined-plane that upper surface and lower surface match, therefore, cuts off slips shear pin
24
After, upper slips seat
16
With lower slips seat
19
Slips can be slipped into smoothly
22
Internal by slips
22
Strut, slips
22
On slot
23
It is more beneficial for slips
22
Strut, slips
22
After strutting, slips
22
On the inwall being snapped to sleeve pipe that pawl on outer wall can be more firm, ratchet lock dog
30
During moving upward, ratchet lock dog
30
Pawl on inwall and ratchet mandrel
9
Pawl on outer wall matches, and works as slips
22
After occlusion puts in place, ratchet lock dog
30
On pawl now with ratchet mandrel
9
On pawl be also mutually twisted, so, slips
22
Setting position the most locked, effectively prevent from setting inefficacy, seal assembly is in compressive state before deblocking forever, and seal assembly realizes the purpose insulated up and down.
When needs unseal, lower pressure pipe post, i.e. mandrel
1
Move down, now, ratchet mandrel
9
By ratchet lock dog
30
, upper slips seat
16
, lower slips seat
19
And slips
22
It is engaged on sleeve pipe, it is impossible to mobile, mandrel
1
Opposed ratchet teeth mandrel
9
Move down, now cut off deblocking shear pin
12
, work as mandrel
1
Mobile to locking key
13
It is positioned at annular groove
4
Time, locking key
13
Annular groove is entered from taper ring cavity abjection radial contraction
4
, seal assembly loses support, moves on the elastic reaction lower seal assembly of seal assembly, and seal assembly diameter diminishes, casing annulus seal failure, mandrel
1
Continue to move down, work as mandrel
1
It is displaced downwardly to get out of a predicament or an embarrassing situation
3
Lower end with install groove
10
Upper end offset after, mandrel
1
Drive ratchet mandrel
9
In company with mandrel
1
Together move down, work as mandrel
1
With ratchet mandrel
9
It is displaced downwardly to
C
Type ring
33
With land in piston
32
Upper surface when offseting,
C
Type ring
33
Effect under, mandrel
1
With ratchet mandrel
9
Drive piston cylinder
27
, lower slips seat
19
, slips
22
, upper slips seat
16
, ratchet lock dog
30
Together move down, slips
22
Lose support and carry out resilience, upper slips seat lug
18
With lower slips seat lug
21
Return is in upper suspension groove and lower suspension groove respectively, slips
22
It is forced to continue to shrink, move down, it is achieved deblocking.
Can according to actual needs, optimize pressing deblocking packer to make further under above-mentioned hydraulic setting or
/
And improvement:
Such as accompanying drawing
1
、
2
Shown in, seal assembly includes ring on packing element
34
, middle packing element
38
, lower rubber cylinder
39
, upper packing element
40
With packing element inner sleeve
41
；Ring on packing element
34
External wall of upper portion on have sealing install annular groove, ring on packing element
34
It is sleeved on ratchet mandrel
9
Go up and seal installation annular groove to be fixedly installed togather with lower installation annular groove, ring on packing element
34
With ratchet mandrel
9
Between formed slip toroidal cavity
35
, the upper surface inside lower installation annular groove and ring on packing element
34
Inner small and outside big and locking key is formed between the upper surface of inner side
13
The taper ring cavity matched, ring on packing element
34
Lower end inner wall on integrally be fixed with suspension in land
36
, packing element inner sleeve
41
Upper end outer wall on integrally be fixed with suspension outer land
37
, packing element inner sleeve
41
Internal diameter and ratchet mandrel
9
External diameter match, hang outer land
37
It is positioned at suspension land
36
The slip toroidal cavity of top
35
Interior also seat land in hanging
36
On, packing element inner sleeve
41
Lower end outer wall and upper slips seat
16
Upper end inwall be fixedly installed togather, ring on packing element
34
Supreme slip spider
16
Packing element inner sleeve
41
On be set with packing element the most successively
40
, middle packing element
38
And lower rubber cylinder
39
, middle packing element
38
For the annular frustum of inner wide and outer narrow, upper packing element
40
Lower surface be and middle packing element
38
The inclined-plane that matches, upper surface, lower rubber cylinder
39
Upper surface be and middle packing element
38
The inclined-plane that matches, lower surface, ring on packing element
34
Lower end and upper packing element
40
Upper end offset, upper slips seat
16
Upper end and lower rubber cylinder
39
Lower end offset.When setting, pressure promotes the piston cylinder of piston assembly
27
Upwards eject to cut off and set shear pin
26
, band flexible spring seat
29
, spring
31
, lower slips seat
19
, slips
22
, upper slips seat
16
Move up, because ring on packing element
34
With locking key urceolus
5
It is fixedly installed togather, therefore ring on packing element
34
Immovable, now packing element inner sleeve
41
Upper shifting, and then upper slips seat
16
Extruding lower rubber cylinder
39
, and then packing element in extruding
38
With upper packing element
40
Expand, because middle packing element
38
For the annular frustum of inner wide and outer narrow, upper packing element
40
Lower surface be and middle packing element
38
The inclined-plane that matches, upper surface, therefore i.e. can be good at ensureing transmission extruding force during extruding, can guarantee that again packing element
40
, middle packing element
38
And lower rubber cylinder
39
Packing element in will not occurring in expansion process
38
The situation of abjection, when upper packing element
40
, middle packing element
38
And lower rubber cylinder
40
When expanding into the close contact of peripheral internal surface of sleeve pipe, the lower slips seat moved up
19
Slips shear pin
24
Cut off, upper packing element
40
And lower rubber cylinder
39
Hardness identical, upper packing element
40
And lower rubber cylinder
39
With middle packing element
38
Hardness different, therefore crimp is different, upper packing element
40
, middle packing element
38
And lower rubber cylinder
39
Cooperate and can be good at sealing ring empty set pipe；During deblocking, upper packing element
40
, middle packing element
38
And lower rubber cylinder
39
Lose support, at upper packing element
40
, middle packing element
38
And lower rubber cylinder
39
Elastic reaction under carry out resilience, the seal failure of casing annulus.
Such as accompanying drawing
1
、
2
Shown in, packing element inner sleeve
41
Upper end inwall on be installed with sealing ring
42
, hang outer land
37
Outer wall on be installed with sealing ring
42
, packing element inner sleeve
41
Lower end and upper slips seat
16
Upper end between be installed with sealing ring
42
；Or
/
With, sealing installation annular groove is threadably secured with lower installation annular groove and is installed together, packing element inner sleeve
41
Lower end outer wall and upper slips seat
16
Upper end inwall be threadably secured and be installed together.Sealing ring
42
Ensure that preferable sealing function, threaded be easily installed in dismounting.
Such as accompanying drawing
1
、
2
Shown in, piston assembly includes piston cylinder
27
, piston urceolus
44
, piston lower contact
46
And pressure tube
50
；Lower slips seat
19
Outer wall and piston urceolus
27
By setting shear pin
26
It is fixedly installed togather, at piston urceolus
27
Lower inner wall on be integrally fixed with annular installation in land
43
, land in installing
43
Inwall and ratchet mandrel
9
Bottom outer wall be fixedly installed togather, piston cylinder
27
It is positioned at installation land
43
The piston urceolus of top
44
With ratchet mandrel
9
In the toroidal cavity formed, at piston cylinder
27
Bottom outer wall on be integrally fixed with external diameter and piston urceolus
44
The outer land of the piston of diameter compatible
45
, piston lower contact
46
Upper inside wall on have top bar installing hole and installing hole of getting out of a predicament or an embarrassing situation, the ratchet mandrel that internal diameter is sequentially reduced
9
Lower end be positioned at installing hole of topping bar, mandrel
1
Lower end be positioned at get out of a predicament or an embarrassing situation installing hole and the inwall of installing hole of getting out of a predicament or an embarrassing situation and mandrel
1
Bottom outer wall be fixedly installed togather, install in land
43
Inside there is axial up-small and down-big hole of topping bar
47
, in piston lower contact
46
Top in have and top bar hole
47
Corresponding up big and down small hole of getting out of a predicament or an embarrassing situation
48
, correspondence is got out of a predicament or an embarrassing situation hole
48
Lower end have the radial direction through hole communicated with hole of getting out of a predicament or an embarrassing situation
49
, in hole of topping bar
47
Macropore and get out of a predicament or an embarrassing situation hole
48
Macropore in external diameter and hole of topping bar are installed
47
Macropore internal diameter and hole of getting out of a predicament or an embarrassing situation
48
The pressure tube of macropore diameter compatible
50
, pressure tube
50
Inside have axial passage
51
, at radial direction through hole
49
Outer end be installed with plug
52
, hole of topping bar
47
Aperture, axial passage
51
, hole of getting out of a predicament or an embarrassing situation
48
Aperture, radial direction through hole
49
The inner be connected formation pressure transmission passage, land in piston
32
Inwall, the outer land of piston
45
Outer wall on be installed with sealing ring respectively
42
, land in installing
43
With ratchet mandrel
9
Between be installed with sealing ring
42
, hole of topping bar
47
Macropore inwall and get out of a predicament or an embarrassing situation hole
48
Macropore inwall respectively with pressure tube
50
Outer wall between be installed with sealing ring
42
.When setting, to mandrel
1
Inner chamber is suppressed, and pressure promotes piston cylinder by pressure transmission passage
27
Upwards eject, land in piston
32
, the outer land of piston
45
On sealing ring
42
, install in land
43
With ratchet mandrel
9
Between sealing ring, hole of topping bar
47
With hole of getting out of a predicament or an embarrassing situation
48
With pressure tube
50
Between sealing ring
42
Preferable sealing function can be played, it is ensured that piston cylinder during suppressing
27
The smooth enforcement of upper shifting；Piston cylinder
27
Identical with the action principle of the piston rod in common power-equipment；In hole of topping bar
47
With hole of getting out of a predicament or an embarrassing situation
48
In pressure tube can not also be installed
50
, can be directly by radial direction through hole
49
, hole of getting out of a predicament or an embarrassing situation
48
With hole of topping bar
47
As pressure transmission passage, but so need at piston urceolus
44
, install in land
43
With piston lower contact
46
Sealing ring is installed, it is ensured that preferably sealing effectiveness between the end face contacted；Radial direction through hole
49
It is not only involved in defining pressure transmission passage, and radial direction through hole
49
For the inside and outside more convenient processing of the through hole run through, after machining, at radial direction through hole
49
Outer end fixed installation plug
52
?.
Such as accompanying drawing
1
、
2
Shown in, ratchet mandrel
9
Lower end and top bar and be installed with sealing ring between installing hole inwall
42
, mandrel
1
Lower end and get out of a predicament or an embarrassing situation and be installed with sealing ring between installing hole inwall
42
；Or
/
With, land in installing
43
Inwall and ratchet mandrel
9
Bottom outer wall be threadably secured and be installed together, the inwall of installing hole of getting out of a predicament or an embarrassing situation and mandrel
1
Bottom outer wall be threadably secured and be installed together.Sealing ring
42
Ensure that preferable sealing function, threaded be easily installed in dismounting.
Such as accompanying drawing
1
、
2
Shown in, internal projecting ring
6
The locking key urceolus of lower section
5
With deblocking ratchet it
7
Between be installed with steady pin
53
；Or
/
With, unseal ratchet
7
With ratchet lock dog
30
Upper have the most interlaced slot respectively；Or
/
With, corresponding limited ring dais
11
Groove is being installed
10
The ratchet mandrel of lower section
9
On have balance pipe
54
.Steady pin
53
It is possible to prevent to unseal ratchet
7
With locking key urceolus
5
Between there is relative moving radially；Deblocking ratchet
7
On slot and ratchet lock dog
30
On slot can ensure that deblocking during unseal ratchet
7
Mandrel relatively
1
Upper shifting, ratchet lock dog
30
Opposed ratchet teeth mandrel
9
Upper shifting；Balance pipe
54
Convenient during setting, when packing element inner sleeve
41
During upper shifting, it is ensured that internal and external pressure balance, and then ensure the smooth enforcement of work.
Such as accompanying drawing
1
、
2
Shown in, lower slips seat
19
Lower end and piston cylinder
27
Outer wall between be installed with sealing ring
42
；Or
/
With, lower slips seat
19
Lower end and piston cylinder
27
Outer wall be threadably secured and be installed together, mandrel
1
Upper end have female thread, piston lower contact
46
Lower end have external screw thread.Sealing ring
42
Ensure that preferable sealing function, threaded be easily installed in dismounting.
The present invention uses hydraulic way just can complete to set operation, it is not necessary to dynamic tubing string, and simple to operate, seal assembly uses
3
Individual packing element combinative structure, can bear high pressure, it is ensured that Oil/gas Well safety in recovery process, slips
22
It is positioned at below seal assembly, effectively prevents sand from burying, chip precipitation, it is ensured that during deblocking smoothly, and slips
22
Using monoblock type, gmatjpdumamics is big, it is ensured that setting position is motionless, strengthens sealing effectiveness, meanwhile, even if down-hole string temperature declines, when tubing string length shortens, and mandrel
1
With ratchet mandrel
9
Also can together shorten, there is no relative motion, it is ensured that set stable, during deblocking, lower pressure pipe post, mandrel
1
With ratchet mandrel
9
There is relative motion, unseal shear pin
12
Shear, locking key
13
Shrinking, seal assembly extends, slips
22
Reclaim, the most just depressurization and releasing can set smoothly, it is not necessary to milling sealing member, and the reliability that set and unseal can be effectively ensured.
Above technical characteristic constitutes highly preferred embodiment of the present invention, and it has stronger adaptability and optimal implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
Claims (12)
1. press deblocking packer under a hydraulic setting, it is characterised in that include mandrel, locking key urceolus, deblocking ratchet, ratchet mandrel, locking key, seal assembly, lower slips seat, slips and piston assembly；nullThe most integrally be fixed with in the external wall of upper portion of mandrel that external diameter is sequentially reduced topping bar and getting out of a predicament or an embarrassing situation，Annular groove is had in the bottom got out of a predicament or an embarrassing situation，Crown pawl upward is distributed on outer wall of getting out of a predicament or an embarrassing situation above annular groove，Integrally it is fixed with, on the upper end inwall of locking key urceolus, the internal projecting ring matched with outer wall of getting out of a predicament or an embarrassing situation，Crown pawl upward is distributed on locking key urceolus below internal projecting ring，The crown that the pawl being distributed on the inwall of deblocking ratchet and get out of a predicament or an embarrassing situation on outer wall matches pawl down，The crown that with pawl locking key outer tube inner wall on match pawl down is distributed on the outer wall of deblocking ratchet，Deblocking ratchet is arranged on the locking key urceolus below internal projecting ring Nei by pawl and is arranged on by pawl on getting out of a predicament or an embarrassing situation above annular groove，Fixedly mount, on locking key outer tube inner wall below deblocking ratchet, the back-up ring that restricted deblocking ratchet moves，Upper installation annular groove and lower installation annular groove that internal diameter increases successively is had on locking key urceolus below back-up ring，The upper inside wall of ratchet mandrel has and the installation groove of the annular matched of getting out of a predicament or an embarrassing situation，The external wall of upper portion of ratchet mandrel is integrally fixed with limited ring dais，The corresponding ratchet mandrel installing groove top is fixedly installed togather by deblocking shear pin with the bottom got out of a predicament or an embarrassing situation，Upper end edge even circumferential at ratchet mandrel is installed with the locking key of at least two，Locking key is arc body，The lateral part of locking key is the taper of outer narrow inner width，Locking key there is opening axial resilient key outwardly groove is installed，In resilient key installs groove, resilient key is installed，The upper end of resilient key offsets with the upper surface of upper installation annular groove，The lower end of resilient key is positioned at inside the upper end of ratchet mandrel，There is sealing that annular groove is installed in the external wall of upper portion of seal assembly，Seal assembly is sleeved on ratchet mandrel and seals installation annular groove and is fixedly installed togather with lower installation annular groove，The inner small and outside big taper ring cavity matched with locking key is formed between upper surface and the upper surface inside seal assembly inside lower installation annular groove，The lower end of seal assembly is installed with upper slips seat，The upper slips seat having annular on the bottom outer wall of upper slips seat installs groove，It is tapered slope wide at the top and narrow at the bottom that upper slips seat installs the upper surface of groove，Install at upper slips seat and be integrally fixed with upper slips seat lug on groove，The frustum that upper slips seat lug is big up and small down，The lower slips seat having annular in the external wall of upper portion of lower slips seat installs groove，It is up-narrow and down-wide tapered slope that lower slips seat installs the lower surface of groove，Install at lower slips and be integrally fixed with lower slips seat lug on groove，Lower slips seat lug is up-narrow and down-wide frustum，Slips is tubular，Slips has the most interlaced slot，The upper suspension groove matched with upper slips seat lug and lower slips seat lug and lower suspension groove is had respectively in the upper inside wall of slips and lower inner wall，Upper slips seat lug and lower slips seat lug lay respectively in suspension groove and lower suspension groove，The upper surface of slips and lower surface are respectively the inclined-plane that the tapered slope of the tapered slope and lower slips seat installation groove lower surface of installing groove upper surface with upper slips seat matches，Slips shear pin it is installed with between the top of the bottom of slips and lower slips seat，Crown pawl down is distributed in the external wall of upper portion of slips，Crown pawl upward is distributed on the bottom outer wall of slips，The lower inner wall of lower slips seat has groove under annular installation，The upper surface installing lower groove is up-narrow and down-wide taper surface，The outer wall of lower slips seat is fixedly installed togather by setting shear pin with the upper end of piston assembly，Piston assembly includes piston cylinder，The lower end of lower slips seat is fixedly installed togather with the outer wall of the piston cylinder of piston assembly，Pressure transmission passage is had between mandrel inside and piston assembly，Upper slips seat、Lower slips seat、Slips and piston assembly are set on ratchet mandrel，Lower slips seat、The conical cavity of annular is formed between piston cylinder and ratchet mandrel，It is set with spring base in the conical cavity of piston cylinder upper end，The ratchet lock dog that under being set with in the top of conical cavity and installing, the taper surface of groove matches，In toroidal cavity between ratchet lock dog and spring base, spring is installed，Crown pawl down is distributed on the inwall of ratchet lock dog，Crown pawl upward is distributed on ratchet mandrel above ratchet lock dog，The lower inner wall of piston cylinder is integrally fixed with land in the piston that internal diameter and ratchet outside diameter of mandrel match，It is installed with C-shaped ring on ratchet mandrel outer wall above land in piston，The inwall of piston assembly respectively with the bottom outer wall of mandrel、The bottom outer wall of ratchet mandrel is fixedly installed togather.
Deblocking packer is pressed, it is characterised in that seal assembly includes ring on packing element, packing element inner sleeve, upper packing element, middle packing element and lower rubber cylinder under hydraulic setting the most according to claim 1；nullThere is sealing that annular groove is installed on packing element in the external wall of upper portion of ring，Packing element upper ring cap is contained on ratchet mandrel and seals installation annular groove and is fixedly installed togather with lower installation annular groove，Slip toroidal cavity is formed between ring and ratchet mandrel on packing element，The inner small and outside big taper ring cavity matched with locking key is formed between upper surface inside ring on upper surface inside lower installation annular groove and packing element，Packing element is integrally fixed with on the lower end inner wall of ring land in suspension，The outer land of suspension integrally it is fixed with on the upper end outer wall of packing element inner sleeve，The internal diameter of packing element inner sleeve matches with the external diameter of ratchet mandrel，Hang outer land and be positioned at the slip toroidal cavity above suspension land seat in suspension land，The lower end outer wall of packing element inner sleeve is fixedly installed togather with the upper end inwall of upper slips seat，Packing element is set with packing element on set in the packing element of the supreme slip spider of ring the most successively、Middle packing element and lower rubber cylinder，Middle packing element is the annular frustum of inner wide and outer narrow，The lower surface of upper packing element is the inclined-plane that the upper surface with middle packing element matches，The upper surface of lower rubber cylinder is the inclined-plane that the lower surface with middle packing element matches，On packing element, the lower end of ring offsets with the upper end of upper packing element，The upper end of upper slips seat offsets with the lower end of lower rubber cylinder.
Deblocking packer is pressed under hydraulic setting the most according to claim 2, it is characterized in that being installed with sealing ring on the upper end inwall of packing element inner sleeve, hang and on the outer wall of outer land, be installed with sealing ring, between lower end and the upper end of upper slips seat of packing element inner sleeve, be installed with sealing ring；Or/and, sealing and annular groove is installed is threadably secured with lower installation annular groove and is installed together, the upper end inwall of the lower end outer wall of packing element inner sleeve and upper slips seat is threadably secured and is installed together.
4. press deblocking packer according under the hydraulic setting described in claim 1 or 2 or 3, it is characterised in that piston assembly includes piston cylinder, piston urceolus, pressure tube and piston lower contact；nullThe outer wall of lower slips seat is fixedly installed togather by setting shear pin with piston urceolus，The lower inner wall of piston urceolus is integrally fixed with land in the installation of annular，In installing, the inwall of land is fixedly installed togather with the bottom outer wall of ratchet mandrel，Piston cylinder is positioned at installs the toroidal cavity that the piston urceolus above land is formed with ratchet mandrel，The bottom outer wall of piston cylinder is integrally fixed with external diameter and land outside the piston of piston urceolus diameter compatible，Top bar installing hole and installing hole of getting out of a predicament or an embarrassing situation that internal diameter is sequentially reduced is had in the upper inside wall of piston lower contact，The lower end of ratchet mandrel is positioned at installing hole of topping bar，The bottom outer wall of inwall and mandrel that the lower end of mandrel is positioned at get out of a predicament or an embarrassing situation installing hole and installing hole of getting out of a predicament or an embarrassing situation is fixedly installed togather，Axial up-small and down-big hole of topping bar is had in land in installing，Up big and down small the get out of a predicament or an embarrassing situation hole corresponding with hole of topping bar is had in the top of piston lower contact，There is the radial direction through hole communicated with hole of getting out of a predicament or an embarrassing situation the get out of a predicament or an embarrassing situation lower end in hole of correspondence，External diameter is installed and hole macropore internal diameter and the pressure tube of hole macropore diameter compatible of getting out of a predicament or an embarrassing situation of topping bar in the macropore in the macropore in hole of topping bar and hole of getting out of a predicament or an embarrassing situation，There is axial passage the inside of pressure tube，It is installed with plug in the outer end of radial direction through hole，Top bar the aperture in hole、Axial passage、Get out of a predicament or an embarrassing situation the aperture in hole、The inner of radial direction through hole is connected and forms pressure transmission passage，The inwall of land in piston、Sealing ring it is installed with respectively on the outer wall of the outer land of piston，It is installed with sealing ring between land and ratchet mandrel in An Zhuaning，Top bar the macropore inwall in hole and the macropore inwall in hole of getting out of a predicament or an embarrassing situation respectively and is installed with sealing ring between the outer wall of pressure tube.
Deblocking packer is pressed, it is characterised in that the lower end of ratchet mandrel and top bar and be installed with sealing ring between installing hole inwall, the lower end of mandrel and get out of a predicament or an embarrassing situation and be installed with sealing ring between installing hole inwall under hydraulic setting the most according to claim 4；Or/and, in installing, the inwall of land is threadably secured with the bottom outer wall of ratchet mandrel and is installed together, and the bottom outer wall of the inwall of installing hole of getting out of a predicament or an embarrassing situation and mandrel is threadably secured and is installed together.
6. press deblocking packer according under the hydraulic setting described in claim 1 or 2 or 3, it is characterised in that between locking key urceolus and the deblocking ratchet below internal projecting ring, be installed with steady pin；Or/and, deblocking ratchet and ratchet lock dog there is the most interlaced slot respectively；Or/and, corresponding limited ring dais has balance pipe on the ratchet mandrel installing below groove.
Deblocking packer is pressed, it is characterised in that between locking key urceolus and the deblocking ratchet below internal projecting ring, be installed with steady pin under hydraulic setting the most according to claim 4；Or/and, deblocking ratchet and ratchet lock dog there is the most interlaced slot respectively；Or/and, corresponding limited ring dais has balance pipe on the ratchet mandrel installing below groove.
Deblocking packer is pressed, it is characterised in that between locking key urceolus and the deblocking ratchet below internal projecting ring, be installed with steady pin under hydraulic setting the most according to claim 5；Or/and, deblocking ratchet and ratchet lock dog there is the most interlaced slot respectively；Or/and, corresponding limited ring dais has balance pipe on the ratchet mandrel installing below groove.
Deblocking packer is pressed, it is characterised in that between lower end and the outer wall of piston cylinder of lower slips seat, be installed with sealing ring under hydraulic setting the most according to claim 4；Or/and, the lower end of lower slips seat is threadably secured with the outer wall of piston cylinder and is installed together, and the upper end of mandrel has female thread, the lower end of piston lower contact to have external screw thread.
Deblocking packer is pressed, it is characterised in that between lower end and the outer wall of piston cylinder of lower slips seat, be installed with sealing ring under hydraulic setting the most according to claim 5；Or/and, the lower end of lower slips seat is threadably secured with the outer wall of piston cylinder and is installed together, and the upper end of mandrel has female thread, the lower end of piston lower contact to have external screw thread.
Deblocking packer is pressed, it is characterised in that between lower end and the outer wall of piston cylinder of lower slips seat, be installed with sealing ring under 11. hydraulic settings according to claim 6；Or/and, the lower end of lower slips seat is threadably secured with the outer wall of piston cylinder and is installed together, and the upper end of mandrel has female thread, the lower end of piston lower contact to have external screw thread.
Deblocking packer is pressed, it is characterised in that between lower end and the outer wall of piston cylinder of lower slips seat, be installed with sealing ring under 12. hydraulic settings according to claim 7；Or/and, the lower end of lower slips seat is threadably secured with the outer wall of piston cylinder and is installed together, and the upper end of mandrel has female thread, the lower end of piston lower contact to have external screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410297238.5A CN104047563B (en) | 2014-06-28 | 2014-06-28 | Deblocking packer is pressed under hydraulic setting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410297238.5A CN104047563B (en) | 2014-06-28 | 2014-06-28 | Deblocking packer is pressed under hydraulic setting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104047563A CN104047563A (en) | 2014-09-17 |
| CN104047563B true CN104047563B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410297238.5A Active CN104047563B (en) | 2014-06-28 | 2014-06-28 | Deblocking packer is pressed under hydraulic setting |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041260B (en) * | 2015-07-21 | 2017-12-12 | 中海油能源发展股份有限公司 | A kind of KCMF types pressure expansion formula insertion sealing |
| CN108894729B (en) * | 2018-09-18 | 2024-01-30 | 中国石油天然气集团有限公司 | Hydraulic pushing type rotary guiding tool |
| CN110952950B (en) * | 2018-09-26 | 2022-03-01 | 中国石油天然气股份有限公司 | Packer (CN) |
| CN109653694B (en) * | 2019-02-19 | 2024-03-08 | 中科金佳（北京）油田技术开发有限公司 | Bearing assembly for tubular column |
| CN113073958B (en) * | 2021-03-19 | 2023-04-07 | 中国石油天然气集团有限公司 | Recyclable bridge plug and using method |
| CN113090222B (en) * | 2021-05-14 | 2021-09-24 | 大庆市晟威机械制造有限公司 | Oil field is packer in pit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4834175A (en) * | 1988-09-15 | 1989-05-30 | Otis Engineering Corporation | Hydraulic versa-trieve packer |
| CN201027528Y (en) * | 2007-05-23 | 2008-02-27 | 魏军 | Multifunctional releasing hydraulic packer |
| CN201057016Y (en) * | 2007-06-26 | 2008-05-07 | 大港油田集团有限责任公司 | Hydraulic self-sealing slip packer |
| US8087458B2 (en) * | 2009-09-08 | 2012-01-03 | Weatherford/Lamb, Inc. | Removable hydraulic-set packer |
| CN203978373U (en) * | 2014-06-28 | 2014-12-03 | 新疆华油油气工程有限公司 | Hydraulic setting presses down deblocking packer |
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2014
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| CN104047563A (en) | 2014-09-17 |
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