CN107762442A - A kind of sump packer - Google Patents
A kind of sump packer Download PDFInfo
- Publication number
- CN107762442A CN107762442A CN201711248172.0A CN201711248172A CN107762442A CN 107762442 A CN107762442 A CN 107762442A CN 201711248172 A CN201711248172 A CN 201711248172A CN 107762442 A CN107762442 A CN 107762442A
- Authority
- CN
- China
- Prior art keywords
- setting
- mandrel
- lock ring
- setting sleeve
- sump packer
- 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.)
- Withdrawn
Links
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 238000012856 packing Methods 0.000 claims abstract description 34
- 238000003780 insertion Methods 0.000 claims abstract description 15
- 230000037431 insertion Effects 0.000 claims abstract description 15
- 230000002028 premature Effects 0.000 claims description 3
- 210000000664 rectum Anatomy 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000004576 sand Substances 0.000 description 7
- 230000013011 mating Effects 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000012545 processing Methods 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
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)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of sump packer, including packing portion, interface portion and the sealing surface coordinated with insertion sealing；The interface portion is provided with setting sleeve, and the internal diameter of the setting sleeve is more than the internal diameter of mandrel, and the sealing surface is arranged on the inwall of setting sleeve.Sump packer of the present invention is provided with single setting sleeve, and matching trim is arranged on to the inwall of setting sleeve, improves the interior latus rectum of insertion sealing；Use instead and set shear pin and replace threaded connection setting tool and packer, tubing string need not be rotated during separation；Set carrying lug to set shear pin instead of anti-morning before shear pin, there is stronger anti-premature setting ability.
Description
Technical field
The present invention relates to oil, natural gas sand control completion field, more particularly to a kind of sump packer.
Background technology
Sump packer is usually located at the foot of sand control completion wellbore tool tubing string, its main function be sealing sleeve pipe and
Annular space between sand control completion wellbore tool tubing string, entered back into after preventing sand grains by sump packer when filling mortar
To inside tubing string.
Sump packer is monopolized by external major company mostly at present, and domestic aspect data is few.Authorize publication number CN
103233698 A Chinese patent, a kind of sump packer, including the central tube for support inside packer are disclosed, in
Heart pipe, which is provided with, sets retaining mechanism and suspension seal assembly；Setting retaining mechanism includes fixing by shear pin and central tube
Pressure ring；Suspension seal assembly includes upper slipses, upper cone, cartridge component, the lower cone being sleeved on successively on central tube
And lower slipses.Three major defects of presence of the packer, when it by registration interface designs packer mandrel inner surface, will
Insertion sealing device insertion packer mandrel during producing, which is formed, to be coordinated, but due to the limitation of size, inserts the interior logical of sealing
Footpath is inevitable smaller；Second, packer is connected with setting tool by the screw thread on mandrel top, packer setting is completed to revolve
Tube post can take out setting tool, and rotate tubing string have it is in general highly difficult, particularly in high angle hole and horizontal well
In；Third, with setting shear pin（No. 2 parts in accompanying drawing）As anti-premature setting pin, must be sheared due to setting shear pin
Value is generally smaller, thus the ability of anti-premature setting is poor.
The content of the invention
It is an object of the invention to provide a kind of sump packer, have in supporting insertion sealing that latus rectum is big, setting tool
It is easy to take out, the advantages of anti-premature setting ability is strong；Concrete technical scheme is：
A kind of sump packer, including packing portion, interface portion and the sealing surface coordinated with insertion sealing；The interface portion is set
There is setting sleeve, the internal diameter of the setting sleeve is more than the internal diameter of mandrel, and the sealing surface is arranged on the inwall of setting sleeve.
Further, the setting sleeve is connected with top connection by setting shear pin.
Further, the carrying lug for preventing sump packer from early setting is provided with the setting sleeve.
Further, the inwall of the setting sleeve is provided with the annular groove of the fixed carrying lug position.
Further, the annular groove is arranged on side of the sealing surface away from the packing portion.
Further, the packing portion also includes preventing the retaining mechanism for setting rear packing element bounce-back.
Further, the retaining mechanism is made up of mandrel, lock ring and lock ring seat；The lock ring seat inwall is provided with lock ring seat
Locking teeth, the outer wall of the mandrel are provided with mandrel locking teeth；The inwall of the lock ring is provided with and the mandrel locking teeth pair
The internal locking tooth answered, outer wall are provided with outer locking tooth corresponding with the lock ring seat locking teeth.
Further, the locking teeth, internal locking tooth, outer locking tooth and mandrel locking teeth are annular tooth.
Sump packer of the present invention is provided with single setting sleeve, and matching trim is arranged on to the inwall of setting sleeve, carried
The high interior latus rectum of insertion sealing；Use instead and set shear pin and replace threaded connection setting tool and packer, be not required to during separation
Rotate tubing string；Set carrying lug to replace anti-premature setting shear pin before shear pin, anti-sat in advance with stronger
Envelope ability.
Brief description of the drawings
Fig. 1 is sump packer structural representation of the present invention；
Fig. 2 is insertion sealing and sump packer structural representation；
Fig. 3 is setting sleeve structural representation；
Fig. 4 is lock ring structural representation left view；
Fig. 5 is the sectional view of lock ring structural representation front view；
Fig. 6 is mandrel thread partial enlargement structural representation.
In figure：1st, setting sleeve；1-1, annular groove；1-2, sealing surface；1-3, mounting hole；2nd, top connection；3rd, lock ring seat； 4、
Lock ring；5th, upper slipses；6th, upper cone；7th, support ring；8th, packing element guide shoe；9th, outer packing element；10th, interior packing element；11st, mandrel；12nd, lower cone
Body；13rd, lower slipses；14th, lower contact；15th, shear screw；16th, anti-rotation pin；17th, starting sets screw；18th, holding screw；
19th, sealing ring；20th, sealing ring；21st, shear pin is set；22nd, lug is carried；23rd, insertion sealing.
Embodiment
The present invention is more fully illustrated below with embodiment.The present invention can be presented as a variety of multi-forms,
It is not construed as being confined to the exemplary embodiment described here.
For ease of explanation, space relative terms such as " on ", " under " " left side " " right sides " can be used herein, for saying
The element or feature shown in bright figure is relative to another element or the relation of feature.It should be understood that except in figure
Outside the orientation shown, spatial terminology is intended to include the different azimuth of device in use or operation.If for example, in figure
Device is squeezed, be stated as positioned at other elements or feature " under " element will be located into other elements or feature " on ".Cause
This, exemplary term " under " both upper and lower orientation can be included.Device can be positioned otherwise（It is rotated by 90 ° or is located at
Other orientation）, can correspondingly be explained used herein of the relative explanation in space.
As shown in figure 1, the sump packer in embodiment, including packing portion, interface portion and coordinate with insertion sealing
Sealing surface；Interface portion includes top connection 2, sets shear pin 21, holding screw and setting sleeve 1, and sump packer is by setting
Shear pin 21 and setting sleeve 1 are connected with setting tool.The inner chamber of top connection 2 is provided with annular boss, is buckled in the head end of mandrel 11,
Top connection 2 is connected by screw thread with mandrel 11, and terminally positioned holding screw 18 is fastened.Packing portion includes being socketed successively
Upper slipses 5, upper cone 6, support ring 7, packing element guide shoe 8, outer packing element 9, Inner packing elements 10, outer packing element 9 on the outer wall of mandrel 11, under
Cone 12, lower slipses 13；Lower contact 14 is fixed on the end of mandrel 11.Shear screw 15 is respectively by upper cone 6 and lower cone 12
It is fixed on mandrel 11.Support ring 7, packing element guide shoe 8 can protect outer packing element 9, improve the bearing capacity of packer.
As shown in Fig. 2 the internal diameter of setting sleeve 1 is more than the internal diameter of mandrel 11；The sealing surface 1-2 coordinated with insertion sealing 23 is set
Put on the inwall of setting sleeve 1, rather than on the endoporus of mandrel 11 so that insertion sealing 23 can have larger interior latus rectum.Sit
After envelope instrument takes out, together with other sand control wellbore tool G.I.Hs, between sump packer forming sealing matches somebody with somebody for insertion sealing
Close.
As shown in figure 3, setting sleeve 1 is connected with top connection 2 by setting shear pin 21；Rather than using threaded connection.
Shear pin 21 is set to insert through mounting hole 1-3 in the mounting hole of top connection 2.
Connected using shear pin, when needing setting tool to depart from mandrel 11, can be cut by the way of pressurization
Shear pin.Set after shear pin 21 cut, setting tool is kept completely separate with packer, smoothly can be taken out of pit shaft
Go out, without rotating tubing string.This structure is especially suitable in high angle hole and horizontal well；It is difficult that operation can effectively be reduced
Degree.
Being provided with setting sleeve 1 prevents the carrying lug 22 of sump packer premature setting.During setting, setting tool
Carrying lug 22 first shrink, separated with packer；Then set shear pin 21 to be cut, setting tool is thorough with packer
Separation, is finally removed pit shaft.Bearing capacity is much larger than the carrying lug 22 for setting shear pin 21 in setting sleeve 1,
Shear pin in packer is protected, avoids packer from causing construction accident because of unexpected premature setting.
The position of fixed carrying lug 22 is arranged on the inwall of setting sleeve；Can be in sealing surface 1-2 both sides；Structure is
Annular groove.Annular groove is preferably arranged on sides of the sealing surface 1-2 away from packing portion.
As shown in Figure 4, Figure 5, in order to avoid preventing from setting rear rubber ring bounce-back, the effect of hermetic barrier is influenceed；Packing portion
Retaining mechanism should be also set.
Retaining mechanism is made up of mandrel 11, lock ring 4 and lock ring seat 3；Lock ring 4 is set on the outer wall of mandrel 11,3 sets of lock ring seat
It is located on the outer wall of lock ring 4.The inwall of lock ring seat 3 is provided with lock ring seat locking teeth, and accordingly, the outer wall of lock ring 4 is provided with and lock ring
Outer locking tooth corresponding to seat locking teeth.The outer wall of mandrel 11 is provided with mandrel locking teeth with 4 corresponding position of lock ring；Accordingly,
The inwall of lock ring 4 is provided with internal locking tooth corresponding with mandrel locking teeth.
Lock ring seat locking teeth, internal locking tooth, outer locking tooth and mandrel locking teeth are annular tooth；To reduce assembly difficulty.
As shown in fig. 6, annular tooth is small towards the domatic angle in direction of well head；Domatic angle towards packing portion is big；Facilitate the edge of lock ring seat 3
Mandrel 11 slides to packing portion, extrudes packing element；After setting, extruding force is removed, retaining mechanism can prevent lock ring seat counter motion,
Keep packing state.
Locking teeth can also use the structure of thread forms；Locking teeth processing efficiency of the locking teeth of thread forms than annular
It is high.In order to prevent being produced relative rotation between lock ring seat 3 and lock ring 4, lock ring 4 is provided with opening, the stop pin fixed on lock ring seat 3
The opening of the insertion lock ring 4 of nail 16.
Sealing ring 19 is provided with the head end close to mandrel 11；Sand grains is avoided to enter mandrel 11 and the mating surface of top connection 2
Between gap.Position between the end of mounting hole 1-3 and top connection 2, between setting sleeve 1 and the mating surface of top connection 2
It is also equipped with sealing ring 20；Sand grains is avoided to enter the gap between setting sleeve 1 and the mating surface of top connection 2.Sealing ring 19 and sealing
Circle 20 can use "O"-ring.
During work, in the annular groove 1-1 that ground is first stuck in the carrying lug 22 of setting tool on setting sleeve 1.Simultaneously
Because setting sleeve 1 is linked together with packing portion by setting shear pin 21；During going into the well if be hampered can above carry or
Tubing string is transferred, now above puies forward or transfers power and act on carrying lug, set shear pin 21 and do not stress, because carrying lug is held
Loading capability is far longer than the bearing capacity for setting shear pin, therefore the packer has very strong anti-premature setting ability.
After packer is lowered into precalculated position, setting tool is suppressed.The piston of setting tool is moved downward so that carrying
The radial contraction of lug 22 separates with packer.Continue to suppress, the piston of setting tool promotes setting sleeve 1, lock ring seat 3, lock successively
Ring 4, upper slipses 5, upper cone 6, support ring 7, packing element guide shoe 8, outer packing element 9, interior packing element 10, outer packing element 9, lower cone 12, lower card
Watts 13 are moved downward, and set shear pin 21, starting sets screw 17, shear screw 15 is cut successively, and upper and lower slips is stuck in
On internal surface of sleeve pipe, expand, the annular space between sealing sleeve pipe and packer, realize after interior packing element 10 and outer packing element 9 are compressed
Packing.
Above-mentioned example is only intended to the explanation present invention, in addition, also a variety of different embodiments, and and these are implemented
Mode be all those skilled in the art after comprehension inventive concept it is also envisioned that therefore, will not enumerate herein.
Claims (8)
1. a kind of sump packer, including packing portion, interface portion and the sealing surface coordinated with insertion sealing；Characterized in that,
The interface portion is provided with setting sleeve, and the internal diameter of the setting sleeve is more than the internal diameter of mandrel, and the sealing surface is arranged on setting sleeve
Inwall on.
2. sump packer as claimed in claim 1, it is characterised in that the setting sleeve is with top connection by setting shear pin
Nail connection.
3. sump packer as claimed in claim 1, it is characterised in that being provided with the setting sleeve prevents sump packer
The carrying lug of premature setting.
4. sump packer as claimed in claim 3, it is characterised in that the inwall of the setting sleeve is provided with described in fixation and held
Carry the annular groove of lug position.
5. sump packer as claimed in claim 4, it is characterised in that the annular groove is arranged on the sealing surface away from institute
State the side in packing portion.
6. sump packer as claimed in claim 1, it is characterised in that the packing portion also includes preventing from setting rear packing element anti-
The retaining mechanism of bullet.
7. sump packer as claimed in claim 6, it is characterised in that the retaining mechanism is by mandrel, lock ring and lock ring seat
Composition；The lock ring seat inwall is provided with lock ring seat locking teeth, and the outer wall of the mandrel is provided with mandrel locking teeth；The lock ring
Inwall be provided with internal locking tooth corresponding with the mandrel locking teeth, outer wall is provided with corresponding with the lock ring seat locking teeth
Outer locking tooth.
8. sump packer as claimed in claim 7, it is characterised in that the lock ring seat locking teeth, internal locking tooth, outer locking
Tooth and mandrel locking teeth are annular tooth or triangle thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711248172.0A CN107762442A (en) | 2017-12-01 | 2017-12-01 | A kind of sump packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711248172.0A CN107762442A (en) | 2017-12-01 | 2017-12-01 | A kind of sump packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107762442A true CN107762442A (en) | 2018-03-06 |
Family
ID=61275751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711248172.0A Withdrawn CN107762442A (en) | 2017-12-01 | 2017-12-01 | A kind of sump packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107762442A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653695A (en) * | 2019-02-19 | 2019-04-19 | 中科金佳（北京）油田技术开发有限公司 | Bearing assembly and tubing string for tubing string |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4832129A (en) * | 1987-09-23 | 1989-05-23 | Otis Engineering Corporation | Multi-position tool and method for running and setting a packer |
| US20050056417A1 (en) * | 2003-09-11 | 2005-03-17 | Porter Jesse C. | Hydraulic setting tool for packers |
| CN101787865A (en) * | 2010-01-11 | 2010-07-28 | 中国石油化工股份有限公司 | Midway setting-proof permanent packer |
| CN202031510U (en) * | 2011-05-13 | 2011-11-09 | 中国石油天然气股份有限公司 | Sleeve hoop positioner |
| CN103206195A (en) * | 2013-04-22 | 2013-07-17 | 中国海洋石油总公司 | Filling conversion tool |
| CN103233698A (en) * | 2013-04-22 | 2013-08-07 | 中国海洋石油总公司 | Sump packer |
| US20140151025A1 (en) * | 2012-12-04 | 2014-06-05 | Halliburton Energy Services, Inc. | Packer Setting Tool |
| CN104265235A (en) * | 2014-09-15 | 2015-01-07 | 四机赛瓦石油钻采设备有限公司 | Hydraulic-setting large-size detachable insertion tube packer |
| CN204609829U (en) * | 2015-05-15 | 2015-09-02 | 中国海洋石油总公司 | Hanging packer |
| CN206309338U (en) * | 2016-12-12 | 2017-07-07 | 百勤能源科技（惠州）有限公司 | A kind of hanging packer of hydraulic setting |
| CN207470151U (en) * | 2017-12-01 | 2018-06-08 | 中科金佳（北京）油田技术开发有限公司 | A kind of sump packer |
-
2017
- 2017-12-01 CN CN201711248172.0A patent/CN107762442A/en not_active Withdrawn
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4832129A (en) * | 1987-09-23 | 1989-05-23 | Otis Engineering Corporation | Multi-position tool and method for running and setting a packer |
| US20050056417A1 (en) * | 2003-09-11 | 2005-03-17 | Porter Jesse C. | Hydraulic setting tool for packers |
| CN101787865A (en) * | 2010-01-11 | 2010-07-28 | 中国石油化工股份有限公司 | Midway setting-proof permanent packer |
| CN202031510U (en) * | 2011-05-13 | 2011-11-09 | 中国石油天然气股份有限公司 | Sleeve hoop positioner |
| US20140151025A1 (en) * | 2012-12-04 | 2014-06-05 | Halliburton Energy Services, Inc. | Packer Setting Tool |
| CN103206195A (en) * | 2013-04-22 | 2013-07-17 | 中国海洋石油总公司 | Filling conversion tool |
| CN103233698A (en) * | 2013-04-22 | 2013-08-07 | 中国海洋石油总公司 | Sump packer |
| CN104265235A (en) * | 2014-09-15 | 2015-01-07 | 四机赛瓦石油钻采设备有限公司 | Hydraulic-setting large-size detachable insertion tube packer |
| CN204609829U (en) * | 2015-05-15 | 2015-09-02 | 中国海洋石油总公司 | Hanging packer |
| CN206309338U (en) * | 2016-12-12 | 2017-07-07 | 百勤能源科技（惠州）有限公司 | A kind of hanging packer of hydraulic setting |
| CN207470151U (en) * | 2017-12-01 | 2018-06-08 | 中科金佳（北京）油田技术开发有限公司 | A kind of sump packer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653695A (en) * | 2019-02-19 | 2019-04-19 | 中科金佳（北京）油田技术开发有限公司 | Bearing assembly and tubing string for tubing string |
| CN109653695B (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 and tubular column |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209228337U (en) | A kind of dissolvable bridge plug | |
| CN101614117B (en) | Expansion tube type liner hanger | |
| CN101382052B (en) | Back-off packer | |
| CN201460778U (en) | Expansion pipe type tail pipe hanger | |
| CN101358512B (en) | Rotary tail pipe hanger capable of respectively drilling and completing | |
| CN112343538A (en) | Self-adaptive all-metal soluble ball seat | |
| CN112253044A (en) | High-ductility small-diameter dissolvable bridge plug | |
| CN109854204A (en) | Repeatable docking salvaging type hollow bridging plug | |
| CN107762442A (en) | A kind of sump packer | |
| CN207470151U (en) | A kind of sump packer | |
| CN111894512A (en) | Liner hanger assembly and top mechanical expansion type packer thereof | |
| CN107387006A (en) | Running tool and the large diameter hanger for being provided with the running tool | |
| CN112709545A (en) | Soluble ball seat capable of improving dissolving speed | |
| CN2835532Y (en) | Whipstock anchoring device | |
| CN103195389B (en) | A kind of suspension packer for open hole well completion | |
| CN205532458U (en) | Packer is adopted to long -term separating of oil field | |
| CN211448603U (en) | Hard-sealing soluble bridge plug | |
| CN109138918A (en) | A kind of anchoring type solvable pressure break ball seat and application method entirely | |
| CN111608611A (en) | Large-drift-diameter bridge plug capable of realizing single upper seal fracturing and method | |
| CN201778707U (en) | Disfunctional safety release with plug-in butt joint | |
| CN201412099Y (en) | Expansible sleeve assistance mechanism for safe expansion | |
| CN201025006Y (en) | Once extrusion and cycling filling tool for high pressure sealing | |
| CN108316885B (en) | A kind of bridge plug with combination packing element | |
| CN201297153Y (en) | Releasing blocking-device | |
| CN214330593U (en) | Soluble bridge plug for bidirectional pressure-bearing fracturing |
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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180306 |
|
| WW01 | Invention patent application withdrawn after publication |