CN108204224A - A kind of no casing pressure packing tool - Google Patents
A kind of no casing pressure packing tool Download PDFInfo
- Publication number
- CN108204224A CN108204224A CN201810068683.2A CN201810068683A CN108204224A CN 108204224 A CN108204224 A CN 108204224A CN 201810068683 A CN201810068683 A CN 201810068683A CN 108204224 A CN108204224 A CN 108204224A
- Authority
- CN
- China
- Prior art keywords
- top connection
- sand washing
- casing
- slip
- tube assembly
- 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
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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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/04—Gravelling of wells
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- 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)
- Earth Drilling (AREA)
Abstract
The present invention provides a kind of no casing pressure fill tool,Including top connection,Lower contact,Center tube assembly and the outer barrel component mounted on center tube assembly periphery,Sliding sleeve is socketed with outside top connection,Locker is installed on sliding sleeve,Locker is outer to be mounted on by lock ring in sheath,Packing element set is mounted on casing,Slip spider is connect with outer tube,Slip insert is mounted on by slip spider in sand washing top connection,Backwash set and spring are mounted in sand washing top connection,Slip sleeve is mounted on the periphery of sand washing top connection,Sand washing lower contact is internally provided with sealing shroud and spring,Lower contact is mounted on the connector of sand washing lower contact,Oil reservoir is realized as multilayer,Lower floor's oil reservoir needs to exploit,And it constructs when having the hole condition of leak source on the production string of top,And it can realize the pumping liquid well-flushing from casing,It will not be by tool lower portion pressure transmission to upper tool part,One is realized without casing pressure in upper tool part,So as to fulfill the purpose of protection top oil reservoir.
Description
Technical field
The present invention relates to a kind of packing tools, and in particular to a kind of no casing pressure packing tool.
Background technology
Packing tool is a kind of underground filling tool, be by packing tool by gravel huge discharge, high pump pressure insert to
Behind stratum, annular pack is carried out, closely knit high permeability zone is formed in the range of pit shaft certain radius, makes up formation depletion, improved
Near wellbore permeability increases flow conductivity, reduces producing pressure differential, alleviates formation sand production.Popular says, is exactly prevented with back-up sand
Reservoir sand.When encountering oilbearing stratum for multilayer, lower floor's oil reservoir needs to exploit, and when having the hole condition of leak source on the production string of top,
When tool is constructed in lower part, the recovery pressure of lower part is locked in lower part to form casing pressure in the upper tool part set, no
Then the casing pressure on top will be transmitted to top oil reservoir, it may appear that and it is fuel-displaced to shake out, influence lower part reservoir exploitation.
Invention content
The technical problem to be solved by the present invention is to：There is provided it is a kind of protect oil reservoir without casing pressure fill tool.
To solve the above-mentioned problems, the present invention includes top connection, lower contact, center tube assembly and mounted on center tube assembly
The outer barrel component of periphery, the center tube assembly include piston, connecting tube, connector sleeve and lower valve body, are equipped in the top connection
Piston, the piston are mounted in connecting tube, and the connecting tube is connected with lower valve body, the periphery of the connecting tube and lower valve body
Periphery forms center tube assembly inner cavity with top connection inner wall, and the connector sleeve is connect with center tube assembly inner cavity；The outer barrel group
Part includes sliding sleeve, lock ring, locker, sheath, casing, packing element set, slip spider, slip sleeve, slip insert, spring, sand washing lower contact
And sealing shroud, the top connection are socketed with sliding sleeve outside, and locker is equipped on the sliding sleeve, the locker is outer to be pacified by lock ring
In sheath, the packing element set is mounted on casing, and the slip spider is connect with outer tube, and the slip insert is pacified by slip spider
In sand washing top connection, the backwash set and spring are mounted in sand washing top connection, and the slip sleeve is mounted in sand washing and connects
The periphery of head, the sand washing lower contact are internally provided with sealing shroud and spring, and the lower contact is mounted on the connector of sand washing lower contact
On.
As an optimization, sliding sleeve of the present invention is equipped with hole, between the outer wall of outer tube wall and center tube assembly inner cavity is equipped with
Gap.
As an optimization, sand washing top connection of the present invention is internally provided with bark pocket chamber, and the backwash set is mounted on bark pocket intracavitary.
After adopting the above technical scheme, the invention has the advantages that：
(1) oil reservoir is realized as multilayer, and lower floor's oil reservoir needs to exploit, and while having the hole condition of leak source on the production string of top applies
Work, and can realize the pumping liquid well-flushing from casing, will not be by tool lower portion pressure transmission to upper tool part, in upper tool part
One is realized without casing pressure, so as to fulfill the purpose of protection top oil reservoir.
(2) after the completion of tool filling anchoring work, from upper sleeve small displacement pumping liquid, enter folder from the hole on sliding sleeve
Bellows opens backwash set, into center tube assembly inner cavity, washes out central tube and gravel extra inside oil pipe.
(3) by the way that backwash set is mounted on bark pocket intracavitary, to form a kind of structure of ball-and-seat, pressure may only be by casing
Input tool lower part, when tool lower portion, which carries out work, generates pressure, pressure is kept off by backwash set does not enter upper tool part, real
Show the pumping liquid well-flushing from casing, tool lower portion pressure transmission to upper tool part will not be realized one in upper tool part
Without casing pressure, so as to fulfill the purpose of protection top oil reservoir.
Description of the drawings
Fig. 1 is a kind of sectional view of no casing pressure fill tool provided by the invention；
Fig. 2 is the close-up schematic view at A in Fig. 1.
Wherein：1- top connections, 2- pistons, 3- connecting tubes, 4- sliding sleeves, 5- lock rings, 6- lockers, 7- outer tubes, 8- sheaths, 9-
Casing, 10- packing elements, 11- gaskets, 12- slip spiders, 13- slip sleeves, 14- spring leafs, 15- slip inserts, 16- washers, 17- backwashes
It covers, 18- springs, 19- sand washing top connections, 20- sealing shrouds, 21- sand washing lower contacts, 22- lower valve bodies, 23- connector sleeves, is connect under 24-
Head.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be configured to arrange and design with a variety of different.Therefore, below to provide in the accompanying drawings the present invention reality
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need to that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instructions such as " level ", " interior ", " outer " are based on orientation shown in the drawings or position relationship or are somebody's turn to do
Invention product using when the orientation usually put or position relationship, be for only for ease of the description present invention and simplify description, without
It is instruction or implies that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
It solves to indicate or implying relative importance.
As shown in Figs. 1-2, the embodiment of the present invention is provided without casing pressure fill tool, including top connection 1, lower contact 24, center
Tube assembly and the outer barrel component mounted on center tube assembly periphery, center tube assembly include piston 2, connecting tube 3,23 and of connector sleeve
Lower valve body 22, top connection 1 is interior to be equipped with piston 2, and piston 2 is mounted in connecting tube 3, and connecting tube 3 is connected with lower valve body 22, connecting tube
3 periphery and the periphery of lower valve body 22 form center tube assembly inner cavity, the connector sleeve 23 and central tube group with 1 inner wall of top connection
Part inner cavity connects；Outer barrel component includes sliding sleeve 4, lock ring 5, locker 7, sheath 8, casing 9, packing element set 10, slip spider 12, slips
Set 13, slip insert 15, spring 18, sand washing lower contact 19 and sealing shroud 20, top connection 1 are socketed with sliding sleeve 4 outside, are installed on sliding sleeve 4
Have a locker 7, locker 7 is outer to be mounted on by lock ring 5 in sheath 8, and packing element set 10 is mounted on casing 9, slip spider 12 with it is outer
Pipe 7 connects, and slip insert is mounted on by slip spider 12 in sand washing top connection 19, and backwash set 17 and spring 18 are mounted in sand washing and connect
In first 19, slip sleeve 13 is mounted on the periphery of sand washing top connection 19, and sand washing lower contact 19 is internally provided with sealing shroud 20 and spring 18,
Lower contact 24 is mounted on the connector of sand washing lower contact 21.
In the present embodiment, sliding sleeve 4 is equipped with hole, and 7 inner wall of outer tube and the outer wall of center tube assembly inner cavity are equipped with gap.Work
After the completion of tool filling anchoring work, from 9 small displacement pumping liquid of upper sleeve, enter bark pocket chamber from the hole on sliding sleeve 4, open anti-
Set 17 is washed, into center tube assembly inner cavity, washes out central tube and gravel extra inside oil pipe.
In the present embodiment, sand washing top connection 21 is internally provided with bark pocket chamber, and backwash set 17 is mounted on bark pocket intracavitary.Passing through will
Backwash set 17 is mounted on bark pocket intracavitary, to form a kind of structure of ball-and-seat, pressure may only by 9 input tool lower part of casing,
When tool lower portion, which carries out work, generates pressure, pressure is kept off by backwash set 17 does not enter upper tool part, realizes from casing 9
Tool lower portion pressure transmission to upper tool part will not be realized one without casing pressure by middle pumping liquid well-flushing in upper tool part, thus
Realize the purpose of protection top oil reservoir.
When the fill tool of the present invention carries out filling operation, the ball for first throwing a ￠ 35 acts on the working face of lower valve body 22
On, then from oil pipe pumping liquid, lower valve body downlink, pack hole is opened and is filled with sand washing top connection 19 on the tube assembly inner cavity of center
Filling perforation is aligned, and the entire channel that fills is opened, and tool is filled, anchoring work；The ring that tool exterior is formed with casing at this time
Pressure in shape space is in 15-20MPa, and the casing of upper tool part cannot have so if there is leak source when not exploiting
Big pressure, 17 blocking high pressures of backwash set in center tube assembly inner cavity and sand washing top connection are from bark pocket chamber entering tool top；
After the completion of tool filling anchoring work, from upper sleeve small displacement pumping liquid, enter bark pocket chamber from the hole on sliding sleeve 4, open
Backwash set 17 into center tube assembly inner cavity, washes out center tube assembly inner cavity and gravel extra inside oil pipe.
Above-mentioned specific embodiment is only the specific case of the present invention, and scope of patent protection of the invention includes but not limited to
The product form and style of above-mentioned specific embodiment, any claims of the present invention and any technical field of meeting
The appropriate variation or modification that those of ordinary skill does it should all fall into the scope of patent protection of the present invention.
Claims (3)
1. a kind of no casing pressure packing tool, including top connection, lower contact, center tube assembly and mounted on center tube assembly periphery
Outer barrel component, it is characterised in that：The center tube assembly includes piston, connecting tube, connector sleeve and lower valve body, in the top connection
Equipped with piston, the piston is mounted in connecting tube, and the connecting tube is connected with lower valve body, the periphery of the connecting tube and lower valve
The periphery of body forms center tube assembly inner cavity with top connection inner wall, and the connector sleeve is connect with center tube assembly inner cavity；It is described outer
Cartridge module is included under sliding sleeve, lock ring, locker, sheath, casing, packing element set, slip spider, slip sleeve, slip insert, spring, sand washing
Connector and sealing shroud, the top connection are socketed with sliding sleeve outside, and locker is equipped on the sliding sleeve, passes through lock outside the locker
Ring is mounted in sheath, and the packing element set is mounted on casing, and the slip spider is connect with outer tube, and the slip insert passes through slips
Seat is mounted in sand washing top connection, and the backwash set and spring are mounted in sand washing top connection, and the slip sleeve is mounted on sand washing
The periphery of top connection, the sand washing lower contact are internally provided with sealing shroud and spring, and the lower contact is mounted on sand washing lower contact
On connector.
2. a kind of no casing pressure fill tool according to claim 1, it is characterised in that：The sliding sleeve is equipped with hole, outer tube
Inner wall and the outer wall of center tube assembly inner cavity are equipped with gap.
3. a kind of no casing pressure fill tool according to claim 1, it is characterised in that：The sand washing top connection is internally provided with
Bark pocket chamber, the backwash set are mounted on bark pocket intracavitary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810068683.2A CN108204224A (en) | 2018-01-24 | 2018-01-24 | A kind of no casing pressure packing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810068683.2A CN108204224A (en) | 2018-01-24 | 2018-01-24 | A kind of no casing pressure packing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108204224A true CN108204224A (en) | 2018-06-26 |
Family
ID=62606449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810068683.2A Pending CN108204224A (en) | 2018-01-24 | 2018-01-24 | A kind of no casing pressure packing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108204224A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201025006Y (en) * | 2007-02-15 | 2008-02-20 | 孔利生 | Once extrusion and cycling filling tool for high pressure sealing |
| CN201650252U (en) * | 2009-05-27 | 2010-11-24 | 胜利油田金岛实业有限责任公司 | Primary gravel packing tool for heat recovery |
| CN202731864U (en) * | 2012-08-18 | 2013-02-13 | 胜利油田金岛实业有限责任公司 | Rupture-proof packing tool |
| CN205225211U (en) * | 2015-10-21 | 2016-05-11 | 胜利油田金岛实业有限责任公司 | Fracturing formula packing tool |
-
2018
- 2018-01-24 CN CN201810068683.2A patent/CN108204224A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201025006Y (en) * | 2007-02-15 | 2008-02-20 | 孔利生 | Once extrusion and cycling filling tool for high pressure sealing |
| CN201650252U (en) * | 2009-05-27 | 2010-11-24 | 胜利油田金岛实业有限责任公司 | Primary gravel packing tool for heat recovery |
| CN202731864U (en) * | 2012-08-18 | 2013-02-13 | 胜利油田金岛实业有限责任公司 | Rupture-proof packing tool |
| CN205225211U (en) * | 2015-10-21 | 2016-05-11 | 胜利油田金岛实业有限责任公司 | Fracturing formula packing tool |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180626 |
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| RJ01 | Rejection of invention patent application after publication |