CN108343393A - Front suspension device - Google Patents
Front suspension device Download PDFInfo
- Publication number
- CN108343393A CN108343393A CN201710052991.1A CN201710052991A CN108343393A CN 108343393 A CN108343393 A CN 108343393A CN 201710052991 A CN201710052991 A CN 201710052991A CN 108343393 A CN108343393 A CN 108343393A
- Authority
- CN
- China
- Prior art keywords
- suspension device
- front suspension
- housing
- valve body
- ontology
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 40
- 238000005553 drilling Methods 0.000 claims abstract description 26
- 230000000694 effects Effects 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 8
- 210000000515 tooth Anatomy 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 2
- 230000008676 import Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Safety Valves (AREA)
Abstract
The present invention relates to completions, a kind of front suspension device is provided, including the first noumenon that can be connected and fixed with drilling rod and can be with fixed second ontology of casing connection that is built in drilling rod, between the first noumenon and the second ontology by least two give up screw connection, screw of respectively giving up is disposed radially, second ontology includes can sliding axially to cut the check valve of screw of respectively giving up along the first noumenon, check valve includes valve body and the plug in valve body, there is the extraneous channel with casing of connection, plug activity to block channel in valve body.Staff need to only continue to import the medium that builds the pressure into valve body when the front suspension device of the present invention builds the pressure, it is very simple, and on the other hand, front suspension device is installed by the way of preposition, is located at the front end of casing and drilling rod, after drilling rod and the first noumenon are taken out completion, casing is located at the outermost of completion, when needing to be salvaged at this time, directly casing can be salvaged, salvaged more convenient.
Description
Technical field
The present invention relates to completion more particularly to a kind of front suspension devices.
Background technology
Whether conventional or its horizontal section length of unconventionaloil pool horizontal well is generally shorter, mainly by drilling technology and complete
The limitation of well technique causes, and wherein hanger is mainly the structure type using postposition, installs the terminal position in casing, must
Directly casing cannot be salvaged when wanting, salvaging is cumbersome, and in addition hanger needs first when being built the pressure to hanger
Bead is inside put into form one-way valve structures, and after the completion of hanger builds the pressure, needs to melt the bead, it is cumbersome.
Invention content
The purpose of the present invention is to provide a kind of front suspension devices, it is intended to for solving existing hanger using postposition
Structure type influences casing salvaging, and the cumbersome problem that builds the pressure.
The invention is realized in this way：
The embodiment of the present invention provides a kind of front suspension device, including the first noumenon that can be connected and fixed with drilling rod and can be with
Fixed second ontology of casing connection being built in drilling rod, passes through at least two between the first noumenon and second ontology
A screw connection of giving up, each screw of giving up are disposed radially, and second ontology includes can be along the first noumenon
It slides axially to cut the check valve of each screw of giving up, the check valve includes valve body and blocking up in the valve body
Head, the valve body is interior to have the extraneous channel with described sleeve pipe of connection, the plug activity closure channel.
Further, the channel has the first flow path that can be connected to described sleeve pipe and can be in communication with the outside second
Flow path, the plug are located in the second flow path, and the size of the plug is more than the bore of the first flow path, and described the
The bore of two flow paths is more than the size of the plug.
Further, second ontology further includes housing, and the check valve is located in the housing, the bottom of the valve body
Portion is provided with several first hydrophthalmias being connected to housing inside, and outer put on is provided on the inside of the connection housing with outside
Several second hydrophthalmias on boundary.
Further, the valve body has the sliding part being bonded with the outer casing inner wall, and edge is offered on the sliding part
The flow channels of the second flow path are extended radially through and are connected to, being provided on the inner wall of the housing can be connected to described sleeve pipe
Circulation stream, the circulation stream are located on the mobile route of the flow channels.
Further, in be arranged on the outer surface of the sliding part at least one circle sealing rubber ring, each sealing rubber ring
It is spaced apart successively in an axial direction.
Further, second ontology further includes the inner sleeve that can be connected and fixed with described sleeve pipe, the inner sleeve with it is described
It is connected using bearing between housing, and safety pin is connected between the inner sleeve and the bearing.
Further, it is described be coated on the mobile route of the check valve be fitted into be equipped with and can radially be unfolded at least
One slips, and the slips has the guide surface for stretching into and in the housing and axially extending, the guide surface is along the valve
The moving direction of body tilts inwardly, and the valve body has the sliding surface being bonded with the guide surface.
Further, at least one scraper extended outward is provided on the outer surface of the housing, it is described to scrape cutter spacing
In the end position of second ontology far from the first noumenon.
Further, the scraper is three, and each scraper is uniformly distributed around the end of the housing, and each described
Scraper all has sequentially connected several cutting tooths.
Further, the junction of the first noumenon and second ontology all has the hierarchic structure being engaged,
And the screw of giving up is equipped in the hierarchic structure.
The invention has the advantages that：
The present invention front suspension device in, the first noumenon can be connect with drilling rod, and the second ontology can with casing connection, when to
When building the pressure in check valve, only need to import the medium that builds the pressure into valve body, by build the pressure medium push plug closure channel, at this time to
Continuing in valve body after importing the medium that builds the pressure, pressure, which starts to increase, in valve body forms the effect that builds the pressure, and after pressure reaches zero dividing value,
Check valve can cut screw of giving up, so that the first noumenon is detached with the second ontology.During above-mentioned build the pressure, work people
Member need to only continue to import the medium that builds the pressure into valve body, and very simply, and on the other hand, front suspension device is by the way of preposition
Installation is located at the front end of casing and drilling rod, and after drilling rod and the first noumenon are taken out completion, casing is located at the outermost of completion
Side when needing to be salvaged at this time, can directly salvage casing, salvage more convenient.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram of front suspension device provided in an embodiment of the present invention；
Fig. 2 is the sectional view of the front suspension device of Fig. 1；
Fig. 3 be Fig. 1 front suspension device set give up after abrupt pressure reduction when structural schematic diagram；
Fig. 4 is the structural schematic diagram of the check valve of the front suspension device of Fig. 1.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1 and Fig. 2, the embodiment of the present invention provides a kind of front suspension device 1, including the first noumenon 11 and second
Body 12, wherein the first noumenon 11 are mainly used for being connected and fixed with drilling rod 2, and the second ontology 12 is then mainly used for and casing 3
It is connected and fixed, and in this structure type, casing 3 is located in drilling rod 2, and the first noumenon 11 and the second ontology 12 are located at drilling rod 2
With the same end of casing 3, between the first noumenon 11 and the second ontology 12 by least two give up screw 13 connect, spiral shell of respectively giving up
Nail 13 is disposed radially, so as to by front suspension device 1 by the first noumenon 11 and the second ontology 12 be connected as one it is whole
Body, wherein the second ontology 12 includes check valve 14, which can be sliding along the axial direction of the first noumenon 11 under external force
It is dynamic, and then screw 13 of respectively giving up can be cut so that the first noumenon 11 is detached with the second ontology 12, and check valve 14 includes valve body
141 and the plug 142 in valve body 141, there is the extraneous channel with casing 3 of connection in valve body 141, and plug 142 can
The channel is blocked with activity.In the present invention, front suspension device 1 when in applied to completion, front suspension device 1 be located at drilling rod 2 with
The unidirectional end position of casing 3, is particularly located at the front end of drilling rod 2 and casing 3, can be to check valve 14 when building the pressure
Valve body 141 in import and build the pressure medium, start to build the pressure in the second ontology 12, by building the pressure, medium pushes plug 142 in valve body 141
Until plug 142 blocks channel, channel is separated for interior movement, and when continuing to build the pressure, the medium that built the pressure of check valve 14 is pushed along the
One ontology 11 is moved axially until that screw 13 of respectively giving up is cut, at this time the first noumenon 11 of front suspension device 1 and second
Body 12 disconnects, then drilling rod 2 is detached from casing 3, and the process of building the pressure terminates, at this time due to pressure releases, 142 automatic fall-back of plug
To original position, channel automatically opens.In above process, staff need to only continue to import the medium that builds the pressure into valve body 141, single
Traditional bead is substituted to plug 142 built in valve 14, operation is very simple, and on the other hand since front suspension device 1 is located at
The front end of drilling rod 2 and casing 3 can lift drilling rod 2 and the ontology of front suspension device 1 after building the pressure, and casing 3 is located at this time
The outermost of completion, and the second ontology 12 of front suspension device 1 is located at the inside of completion, it, can be direct when needing to salvage casing 3
Casing 3 is salvaged by completion using fishing tool, it is more convenient.
Referring to Fig. 2-Fig. 4, optimize above-described embodiment, channel has the first flow path 143 that can be connected to casing 3 and can be with
The second flow path 144 of external world's connection is connected state between certain first flow path 143 and second flow path 144, and second flow path
144 caliber size is more than the caliber size of second flow path 144, and above-mentioned plug 142 is built in second flow path 144, blocks up
First 142 size is less than the bore of second flow path 144 and the bore more than first flow path 143.In the present embodiment, plug 142 is logical
Often also use spherical shape structure, when into second flow path 144 import build the pressure medium when, the medium that builds the pressure can push 142 edge of plug
Second flow path 144 is moved at first flow path 143, since the bore of first flow path 143 is less than 142 size of plug, then plug 142
First flow path 143 can be blocked, the effect that builds the pressure is formed in the second ontology 12 of front suspension device 1, and when the pressure for the medium that builds the pressure
After releasing, the original position of 142 receipt second flow path 144 of plug, first flow path 143 and second flow path can be made by direct circulation
144 continue to keep connected state.In this structure type, front suspension device 1 is using the structure type reversely to build the pressure, specifically
For the second ontology 12 includes housing 121, and check valve 14 is located in the housing 121, and the bottom of valve body 141 is provided with and housing
Several first hydrophthalmias 145 that 121 insides are connected to are provided with 121 inside of connection housing and extraneous several second water on housing 121
Eye 122, wherein the first hydrophthalmia 145 is connected to second flow path 144, and be followed successively by an axial direction first flow path 143, second flow path 144,
First hydrophthalmia 145 and the second hydrophthalmia 122, the medium that builds the pressure enter by the external world and through the second hydrophthalmia 122 in housing 121, then by outer
Set 121 enters through the first hydrophthalmia 145 in second flow path 144, then pushes the plug 142 in second flow path 144 to block first-class
Road 143.Whole process with traditional forward direction builds the pressure mode just on the contrary, ecto-entad builds the pressure, and the end that builds the pressure in this form
Afterwards, plug 142 can be made to be moved to the end of second flow path 144 by direct circulation, at this time for avoid plug 142 block first
Hydrophthalmia 145, the first hydrophthalmia 145 is provided with it is multiple, when plug 142 is located at the bottom of second flow path 144, it is at least one or
Multiple first hydrophthalmias 145 keep the connection with 121 inside of housing.And the second hydrophthalmia 122 is provided with multiple, then is to ensure to suppress
Press medium smoothly can enter 121 inside of housing by the external world.It is, of course, also possible to using another structure type, check valve 14
Second flow path 144 formed by the inner wall of housing 121, i.e. the part-structure of check valve 14 and housing 121 is an entirety, first
Flow path 143 can be detached with second flow path 144, and when building the pressure, plug 142 continues to block first flow path 143, while check valve 14
The part of corresponding first flow path 143 is axially moveable, and in this configuration, then the second water only need to be provided on housing 121
Eye 122 is not necessarily to 145 structure of the first hydrophthalmia.
Referring to Fig. 2 and Fig. 3, further, valve body 141 has the sliding part 146 being bonded with 121 inner wall of housing, sliding
The flow channels 147 for extending radially through and being connected to second flow path 144 are offered in portion 146, and are arranged on the inner wall of housing 121
There is the circulation stream 123 that can be connected to casing 3, and the circulation stream 123 is located on the mobile route of flow channels 147.This reality
It applies in example, after the medium that builds the pressure pushes plug 142 to block first flow path 143, the medium that builds the pressure starts that valve body 141 is pushed to erect in an axial direction
It directly moves up, and since sliding part 146 is bonded with the inner wall of housing 121, then 121 inner wall of housing is formed to flow channels at this time
147 closure, when valve body 141 is moved at circulation stream 123, circulation stream 123, flow channels 147 and second flow path
144 are sequentially communicated, and the medium that builds the pressure in second flow path 144 passes sequentially through in flow channels 147 and circulatory flow sleeve pipe 3,
Abrupt pressure reduction in valve body 141, the process of building the pressure terminate, and staff imports the medium that builds the pressure without continuing at this time.Certainly in valve body
In 141 before abrupt pressure reduction, the screw 13 of respectively giving up of radial setting, front suspension device 1 have been cut in the movement of check valve 14
The first noumenon 11 detached with the second ontology 12.In addition, it is close to be arranged at least one circle on the outer surface of sliding part 146
Sealing rubber ring 148, each sealing rubber ring 148 are spaced apart successively in an axial direction, and usually multiple, and the top of flow channels 147 is under
Side is both provided with sealing rubber ring 148, thereby may be ensured that the sealing performance around flow channels 147 so that flow channels 147 are not
The medium that builds the pressure is not had before corresponding with circulatory flow, in second flow path 144 to be flowed out by flow channels 147, is influenced in valve body 141
The effect that builds the pressure.
Referring again to Fig. 1 and Fig. 2, further, the second ontology 12 further includes having inner sleeve 124, the inner sleeve 124 and casing
3 are fixedly connected, and typically by the way of being threadedly coupled, and are connected using bearing 125 between inner sleeve 124 and housing 121, and interior
It is connected with safety pin 126 between set 124 and bearing 125.In the present embodiment, by losing between housing 121 and the first noumenon 11
Hand screw 13 is connected and fixed, and bearing 125 is then used to connect between housing 121 and inner sleeve 124, to this when drilling rod 2 drives first
When ontology 11 and housing 121 rotate, casing 3 will not be driven to rotate, certainly when casing 3 rotates, drilling rod 2 will not be driven
Rotation can reduce the torque load for screw 13 of giving up before cutting.At least one is usually provided on the outer surface of housing 121
A scraper 127 extended outward, scraper 127 are located at the second end position of the ontology 12 far from the first noumenon 11.By drilling rod 2
With the decentralization of casing 3 to during completion, when occur being hampered card the phenomenon that when, then can pass through the drive housing 121 of drilling rod 2
Scraper 127 rotates, and drilling rod 2 is facilitated to reentry completion with casing 3, and due to being that bearing 125 connects between housing 121 and inner sleeve 124,
Casing 3 will not be driven to rotate when 127 rotary moveable of scraper, reduce the torque of connection structure between the first noumenon 11 and housing 121.
For scraper 127, three are usually provided with, each scraper 127 is uniformly distributed around the end of housing 121, i.e., between neighboring blades 127
Angle be 120 degree, each scraper 127 all has sequentially connected several cutting tooths, and each cutting tooth is that uniform force is divided
The shallow pyramidal structure of circular arc of cloth handles the inner wall of completion by the rotation of each cutting tooth, and certain each scraper 127 does not interfere with each
The distribution of second hydrophthalmia 122.Specifically, the junction of the first noumenon 11 and the second ontology 12 is all made of the ladder knot being engaged
Structure, above-mentioned screw 13 of giving up can be arranged in the hierarchic structure.By this intermeshing hierarchic structure, can enhance
Transmission torque between the first noumenon 11 and the second ontology 12, improves the rotation function of front suspension device 1, on the second ontology 12
Hierarchic structure is located on housing 121.
Referring to Fig. 1-Fig. 3, further, chimeric be equipped with can be radially on the mobile route of check valve 14 for housing 121
At least one slips 15 of expansion, and each slips 15 all has the guide surface 151 for stretching into and in housing 121 and axially extending, and leads
Moving direction to face 151 along valve body 141 tilts inwardly, and valve body 141 has the sliding surface 149 being bonded with guide surface 151.
In the present embodiment, in screw 13 of giving up by before cutting, check valve 14 is axially moveable after building the pressure, due to leading for slips 15
It is to be obliquely installed to face 151, so that the bore in housing 121 tapers into, when the sliding surface 149 of valve body 141 is moved to
At guide surface 151, valve body 141 can generate extruding force after continuing to move to each slips 15, can force 15 edge of each slips
The radially outward outside movement of set 121, and make the outer surface of the outside protrusion housing 121 of each slips 15 and be caught in the interior of completion
On wall, setting for front suspension device 1 is realized, and this structure can be prevented by the first noumenon of drilling rod 2 and front suspension device 1
11 when going out, the second ontology 12 of casing 3 and front suspension device 1, which will not be synchronized, takes or generates displacement out of.
Referring to Fig. 1 and Fig. 3, for above structure, after setting, slips 15 is clamped on the inner wall of completion, is needed at this time
When salvaging casing 3, then the connection structure formed between slips 15 and casing 3 should be first released, due to bearing 125 and inner sleeve 124
Between using safety screw connect, when being salvaged to casing 3 after building the pressure, may be used at this time fishing tool pressurization 10t,
Fishing tool is engaged with the casing 3 positioned at outside, above carries fishing tool at this time, suspending weight is detected by pressure gauge, if suspending weight increases
It then continues through fishing tool after adding to be pressurized into each casing 3, and then can will be between innermost inner sleeve 124 and bearing 125
Safety pin 126 for connection is cut, and inner sleeve 124 is detached with innermost housing 121, to relieve slips 15 to salvaging
The obstruction that process is put forward on tool, after measuring stable suspending weight, you can all pull each casing 3 out completion, certainly after continuing pressurization,
The suspending weight measured does not increase, then it is poor to show that fishing tool is engaged with the casing 3 in outside, then continues the 10t that pressurizes so that the two
Between contact it is close.And after each casing 3 all rises, the housing 121 of the second ontology 12 can be retained in completion, from
Body length is only 1m, and positioned at the bottom of completion, does not interfere with the operation in later stage, then can be with when needing also to play out it certainly
Fishing tool is changed, lower drill bushing washes the housing 121 of 12 part of the second ontology of front suspension device 1 and salvaged completion.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of front suspension device, including the first noumenon that can be connected and fixed with drilling rod and can be with the casing that is built in drilling rod
The second ontology being connected and fixed, it is characterised in that：It gives up by least two between the first noumenon and second ontology
Screw connects, and each screw of giving up is disposed radially, and second ontology includes that can be slided along the axial direction of the first noumenon
It moves to cut the check valve of each screw of giving up, the check valve includes valve body and the plug in the valve body, institute
Stating in valve body has the extraneous channel with described sleeve pipe of connection, and the plug activity blocks the channel.
2. front suspension device as described in claim 1, it is characterised in that：The channel has can be connected to described sleeve pipe the
One flow path and the second flow path that can be in communication with the outside, the plug is located in the second flow path, and the size of the plug
More than the bore of the first flow path, the bore of the second flow path is more than the size of the plug.
3. front suspension device as claimed in claim 2, it is characterised in that：Second ontology further includes housing, described unidirectional
Valve is located in the housing, and the bottom of the valve body is provided with several first hydrophthalmias being connected to housing inside, described outer
It puts on to be provided with and is connected to several second hydrophthalmias on the inside of the housing and extraneous.
4. front suspension device as claimed in claim 3, it is characterised in that：The valve body, which has, to be bonded with the outer casing inner wall
Sliding part, offers the flow channels for extending radially through and being connected to the second flow path on the sliding part, the housing it is interior
The circulation stream that can be connected to described sleeve pipe is provided on wall, the circulation stream is located at the mobile route of the flow channels
On.
5. front suspension device as claimed in claim 4, it is characterised in that：It is arranged at least on the outer surface of the sliding part
One circle sealing rubber ring, each sealing rubber ring are spaced apart successively in an axial direction.
6. front suspension device as claimed in claim 3, it is characterised in that：Second ontology further includes that can connect with described sleeve pipe
Fixed inner sleeve is connect, is connected using bearing between the inner sleeve and the housing, and connected between the inner sleeve and the bearing
There is safety pin.
7. front suspension device as claimed in claim 3, it is characterised in that：It is described to be coated on the mobile route of the check valve
It is chimeric that at least one slips that can be radially unfolded is installed, and the slips has and stretches into the housing and axially extend
Guide surface, the guide surface tilts inwardly along the moving direction of the valve body, and the valve body has and the guide surface
The sliding surface of fitting.
8. front suspension device as claimed in claim 3, it is characterised in that：It is provided on the outer surface of the housing at least one
The scraper extended outward, the scraper are located at the end position of second ontology far from the first noumenon.
9. front suspension device as claimed in claim 8, it is characterised in that：The scraper is three, and each scraper is around described
The end of housing is uniformly distributed, and each scraper all has sequentially connected several cutting tooths.
10. front suspension device as described in claim 1, it is characterised in that：The company of the first noumenon and second ontology
The place of connecing all has the hierarchic structure being engaged, and the screw of giving up is equipped in the hierarchic structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710052991.1A CN108343393A (en) | 2017-01-22 | 2017-01-22 | Front suspension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710052991.1A CN108343393A (en) | 2017-01-22 | 2017-01-22 | Front suspension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108343393A true CN108343393A (en) | 2018-07-31 |
Family
ID=62961817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710052991.1A Pending CN108343393A (en) | 2017-01-22 | 2017-01-22 | Front suspension device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108343393A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704876A (en) * | 2012-05-28 | 2012-10-03 | 中国石油天然气集团公司 | Method and tool for putting well completion pipe down by utilizing drill rod |
| CN102979472A (en) * | 2012-12-06 | 2013-03-20 | 中国石油集团西部钻探工程有限公司 | Expansion hanger |
| WO2015038119A1 (en) * | 2013-09-11 | 2015-03-19 | Halliburton Energy Services, Inc. | Reverse circulation cementing system for cementing a liner |
| CN204920867U (en) * | 2015-09-09 | 2015-12-30 | 克拉玛依塔林石油工程技术服务有限责任公司 | Circulated hanger of horizontal well screen pipe |
| CN105569592A (en) * | 2014-10-11 | 2016-05-11 | 中国石油化工股份有限公司 | Pipe string operation method with convenient release equipment determination and drilling liner hanger system |
| CN206429213U (en) * | 2017-01-22 | 2017-08-22 | 江楠 | Front suspension device |
-
2017
- 2017-01-22 CN CN201710052991.1A patent/CN108343393A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704876A (en) * | 2012-05-28 | 2012-10-03 | 中国石油天然气集团公司 | Method and tool for putting well completion pipe down by utilizing drill rod |
| CN102979472A (en) * | 2012-12-06 | 2013-03-20 | 中国石油集团西部钻探工程有限公司 | Expansion hanger |
| WO2015038119A1 (en) * | 2013-09-11 | 2015-03-19 | Halliburton Energy Services, Inc. | Reverse circulation cementing system for cementing a liner |
| CN105569592A (en) * | 2014-10-11 | 2016-05-11 | 中国石油化工股份有限公司 | Pipe string operation method with convenient release equipment determination and drilling liner hanger system |
| CN204920867U (en) * | 2015-09-09 | 2015-12-30 | 克拉玛依塔林石油工程技术服务有限责任公司 | Circulated hanger of horizontal well screen pipe |
| CN206429213U (en) * | 2017-01-22 | 2017-08-22 | 江楠 | Front suspension device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107387006B (en) | Running tool and the large diameter hanger for being equipped with the running tool | |
| CN104612624A (en) | Staged fracturing method for degradable bridge plug, timing sliding sleeve, staged fracturing tubular column and strata | |
| CN106639994A (en) | Oil pipe gas injection and water drainage technique and tools thereof | |
| CN206753533U (en) | Split type front suspension device | |
| CN201714338U (en) | Multifunctional double-slip packer | |
| CN108343393A (en) | Front suspension device | |
| CN206111091U (en) | But reducing reamer | |
| CN206429213U (en) | Front suspension device | |
| CN203296727U (en) | Mechanical-hydraulic double-action release rotary tail pipe hanger | |
| CN209908438U (en) | Disposable type tail pipe hanger | |
| CN109882114B (en) | Zero-pollution well cementing tool for oil well production layer and process method | |
| CN107724991A (en) | Buckling type tail pipe hanger with slips | |
| US2734582A (en) | bagnell | |
| CN204175184U (en) | Multilateral Wells window opening tool | |
| BRPI1100973A2 (en) | apparatus and methods for extending coatings in large wells | |
| CN202467657U (en) | Well drilling hydraulic pressure reaming device | |
| CN214170456U (en) | Rotary guide shoe | |
| CN105735934B (en) | Packing cup formula shunts packer | |
| CN212428706U (en) | Large-drift-diameter treatment-free underground high-pressure temporary plugging device | |
| CN207750058U (en) | Reversible fishing anchor | |
| CN105735899B (en) | Armature boring is bored with cylinder | |
| CN207315276U (en) | Automatic shut-in well integrated window-opening side-drilling tool | |
| CN106320998A (en) | Horizontal well technique pipe and casing hanger releasing method for same | |
| CN105221075A (en) | Major diameter mechanical and hydraulic linkage formula enlarging while drilling device | |
| CN205558814U (en) | Anchor is barrel drill for anchor drilling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |