CN107829778B - A kind of monoblock type slicing and filling device - Google Patents
A kind of monoblock type slicing and filling device Download PDFInfo
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- CN107829778B CN107829778B CN201710958471.7A CN201710958471A CN107829778B CN 107829778 B CN107829778 B CN 107829778B CN 201710958471 A CN201710958471 A CN 201710958471A CN 107829778 B CN107829778 B CN 107829778B
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- filling
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- 238000012856 packing Methods 0.000 claims abstract description 105
- 239000004576 sand Substances 0.000 claims abstract description 53
- 238000005406 washing Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 49
- 239000007788 liquid Substances 0.000 claims description 43
- 230000007704 transition Effects 0.000 claims description 18
- 238000010008 shearing Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 2
- 230000003993 interaction Effects 0.000 claims 1
- 238000005056 compaction Methods 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 17
- 239000010959 steel Substances 0.000 description 17
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000012530 fluid Substances 0.000 description 9
- 206010055018 Gingival cyst Diseases 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 210000004907 gland Anatomy 0.000 description 8
- 239000003129 oil well Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 210000000664 rectum Anatomy 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- XQCFHQBGMWUEMY-ZPUQHVIOSA-N Nitrovin Chemical compound C=1C=C([N+]([O-])=O)OC=1\C=C\C(=NNC(=N)N)\C=C\C1=CC=C([N+]([O-])=O)O1 XQCFHQBGMWUEMY-ZPUQHVIOSA-N 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
- Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
Abstract
The present invention relates to a kind of monoblock type slicing and filling devices.Its technical solution is: being mainly made of the connection of a group or more of packing tools, sand screen, washing pipe and packer, the inner cavity of packing tool is connected by washing pipe, outer wall is connected by sand screen, the top of every group of packing tool is equipped with packer, the bottom of bottom one group of packing tool is equipped with blind plugging, and every group of packing tool is separately positioned on corresponding oil reservoir filling position；The beneficial effects of the present invention are: the present invention solves the problems, such as that existing single zone compaction tool is unable to slicing and filling, it also overcomes the interior filling tubing string in the layering squeeze pack tool of existing design and outer filling tubing string has mobile difficulty, it avoids malfunctioning switch and positions inaccurate problem, easier realize to multiple oil reservoirs hierarchically fill out and ring is filled out, operating efficiency is improved, is reduced costs.
Description
Technical field
The present invention relates to a kind of petroleum well workover tool, in particular to a kind of monoblock type slicing and filling device.
Background technique
The main reason for sand production filling is one of oil field development urgent need to solve the problem, sand production is oil reservoir
For loose cementing sandstone.In addition, in mid-late oilfield development, since long-term injecting water or gas injecting mining also can greatly destroy reservoir
Skeleton causes sand production.The harm of sand production be mainly manifested in three aspect: one, sand buries payzone, cause the oil well underproduction or
It stops production；Two, the sand grains of high speed causes ground and underground equipment to aggravate abrasion；Three, shaking out leads to formation depletion and collapses, and causes
Casing damage scraps oil well.Sand production causes oil well output to subtract greatly, and operating cost increases sharply, and economic loss is serious.In order to
It solves sand production and guarantees normal production, various sand control techniques and filling including chemical sand control have been carried out in each oil field extensively
The research and application of technology.Currently, more commonly used solution is to carry out sand filling, Ke Yiyou to the position of sand production
Effect fills the stratum in debt that shakes out, and industry also referred to as is filled out；In addition, the annular space between sand screen and casing is best
There is layer of sand, that is, the sand block wall the real more is conducive to the oil recovery in later period, sand stowing operation herein is known as ring in the industry and fills out.
Currently, be single zone compaction method using most of packing tool, and most of in oil well is multiple oil reservoirs
State need to be plowed in this way, single zone compaction tool cannot meet the layering gravel filling to multiple oil reservoirs with single zone compaction tool one
The filling of tubing string in layer, at the same a bite multiple zone well need under the construction of multiple tubing string, complicated for operation, construction trouble, low efficiency,
Production cost increases severely.
And Chinese patent literature number is 1294337, patent name is " layered pipe column for squeeze packing sand control process ", should be suitable for more
The squeeze pack sand-preventing process of oil reservoir, also can be used for individual reservoir.The invention has interior filling tubing string and outer filling tubing string, interior filling
Tubing string includes washing pipe and interior packing tool, and outer filling tubing string includes top hanging packer, outer packing tool and sand screen, is filled outside
It fills out tool and is equipped with filling mouth.Interior filling tubing string is equipped with to set and give up, and outer filling tubing string is equipped with Inter-zonal packing device.It gives up when setting
It is suppressed after setting top hanging packer, sets to give up and separated with top hanging packer, interior filling tubing string can be outside
It is moved up and down in filling tubing string and sets Inter-zonal packing device, cooperate squeeze pack stratum with outer packing tool.Improve sand controlling result and
Validity period.The construction of multiple oil reservoirs layering squeeze pack sand controls can be completed in lower one-trip string, greatly reduce production cost and
The labor intensity of worker.But the problem is that: the invention uses interior filling tubing string and outer filling tubing string, the two are
Dynamic fit, tubing string is mutually shifted twice, it is not easy to be positioned；In addition, ring fill out all be carried out again after the completion of ground is filled out, that is,
It says, after the completion of ground is filled out, if sand tamps, fills be bound between tubing string and outer filling tubing string there are a small amount of sand inside,
Mainly spring has the problem of a small amount of sand caused by wriggling, this results in ring when filling out, interior filling tubing string and outer filling tubing string
Mobile difficulty, or even channel can not be opened, also can not just establish the circulation canal that ring is filled out；And if sand is packless, ground is filled out
Expected filling effect is just not achieved.Therefore, defect existing for the split-type design of interior filling tubing string and outer filling tubing string is difficult to
It reconciles.
Summary of the invention
The purpose of the present invention is to drawbacks described above of the existing technology, provide a kind of monoblock type slicing and filling dress
Set, solve the problems, such as that single zone compaction tool is unable to slicing and filling, also overcome existing design interior filling tubing string and outer filling
There is mobile difficulty in tubing string, while realizing to fill out with dividing oil reservoir and fill out with ring, improve efficiency.
A kind of monoblock type slicing and filling device that the present invention mentions, technical solution is: mainly by a group or more of
Packing tool (10), sand screen (28), washing pipe (30) and packer (7) connection composition, the inner cavity of packing tool (10) passes through
Washing pipe (30) connection, outer wall are connected by sand screen (28), and the top of every group of packing tool (10) is equipped with packer (7), most lower
The bottom of the one group of packing tool (10) in face is equipped with blind plugging (27), and every group of packing tool (10) is separately positioned on corresponding oil reservoir filling
Position；Wherein, the packing tool (10) include packing tool lower contact (3), sealing sliding sleeve (4), layering return connector (5),
Packing tool top connection (6), core pipe of giving up (11) and ball seat (12), packing tool top connection (6) and packing tool lower contact (3)
Between connection layering return connector (5) formed stay well casing column, core pipe of giving up (11) is fixed on the inner cavity for staying well casing column, core pipe of giving up
(11) inner cavity is equipped with boss, and ball seat (12) is installed in the top of boss, is additionally provided with interior pack hole above boss；The layering
The inner wall of return connector (5) is equipped with sealing cavity, cooperates turning off or on for external pack hole by sealing sliding sleeve (4), and divide
Upper circulation canal up and down, top and packing tool top connection (6) and core pipe of giving up (11) are equipped in layer return connector (5)
Between annular space connection, the interior lower circulation canal being equipped with of lower part and packing tool lower contact (3) is connected to by liquid transition cavity,
It is formed by core pipe of giving up (11) by being connect under interior pack hole, outer pack hole, the annular space of packing tool (10) and casing, packing tool
The lower circulation canal of annular space, packing tool lower contact (3) between head (3) and core pipe of giving up (11), liquid transition cavity, layering
The upper circulation canal of return connector (5), the annular space between packing tool top connection (6) and core pipe of giving up (11), entirely forms liquid
The circulation canal of body.
Preferably, the sealing cavity of above-mentioned layering return connector (5) inner wall and sealing sliding sleeve (4) cooperation, sealing cavity
Upside be equipped with shearing boss, downside be equipped with support rim, sealing sliding sleeve (4) downside by shear pin and give up core pipe (11) even
Fixation is connect, when core pipe of giving up (11) above mentions, shearing boss and the top for sealing sliding sleeve (4) interact, so that shear pin is cut,
Make to seal the outer pack hole sealing that sliding sleeve (4) will be layered return connector (5).
Preferably, it is formed between packing tool lower contact (3) top on the downside of the inner wall of above-mentioned layering return connector (5)
Liquid transition cavity, wherein the top of packing tool lower contact (3) is local crowning, divides water to connect by local crowning and layering
Head (5) contact is equipped with retractable support ring to form the liquid transition cavity, in liquid transition cavity, passes through retractable support ring
Cooperate with the notch of sealing sliding sleeve (4) lower outside, sealing sliding sleeve (4) is limited in the sealing of layering return connector (5) inner wall
In cavity.
Preferably, the lower end of above-mentioned packing tool lower contact (3) connects washing pipe (30), is connected and is compensated by washing pipe (30)
Device (1), the compensator (1) include inner tube (14), outer tube (24), sealing ring (26), and the lower end of the outer tube (24) is equipped with interior
Outer lug boss cooperation at the top of boss, with inner tube (14), and the outside of the outer lug boss is equipped with one or more sealing ring
(26), the flexible of compensator (1) is realized in moving up and down for outer tube (24) inner cavity by inner tube (14).
Preferably, the outer wall of the lower part of above-mentioned inner tube (14) is equipped with multiple gingival cyst of mucous gland in the newborn buttons (16), passes through inner tube (14)
Catcher (9) at the top of the core pipe of giving up (11) of gingival cyst of mucous gland in the newborn button (16) and next group of packing tool (10) cooperates；The catcher (9)
Interior to be equipped with multiple groups snap ring cooperation corresponding with gingival cyst of mucous gland in the newborn button, the snap ring uses round-like structure.
Preferably, the outer wall of the lower part of above-mentioned inner tube (14) is equipped with multiple snap rings, by the snap ring of inner tube (14) with
Catcher (9) cooperation at the top of the core pipe of giving up (11) of next group of packing tool (10)；Be equipped in the catcher (9) multiple groups with
The corresponding gingival cyst of mucous gland in the newborn snap fit of snap ring is closed, and the snap ring uses round-like structure.
Preferably, it is respectively equipped with ball seat (12) in every group of packing tool (10), the interior latus rectum of each ball seat (12) is by lower layer
Packing tool is sequentially increased to upper layer packing tool, and corresponding steel ball size is also to be sequentially increased.
Preferably, it is suppressed by liquid, ball seat (12), which is moved downward to, gives up after investment steel ball in core pipe of giving up (11)
Boss in core pipe, and steel ball is located at the downside of interior pack hole；When core pipe of giving up (11) above mentions, ball seat (12) and steel ball pass through
The support of boss is suggested well head.
The beneficial effects of the present invention are: firstly, the present invention solves existing single zone compaction tool has and be unable to slicing and filling
Problem overcomes and connects difficult problem between two tubing strings, reduces production cost, time saving and energy saving；
Second, the present invention is used cooperatively using multiple groups packing tool, realizes the slicing and filling of multiple oil reservoirs, and each fill
Filling out giving up for tool core pipe and stays well casing column to cooperate, when being filled to oil reservoir deficit, by the cooperation of steel ball and ball seat,
Pack hole in opening, is connected to interior pack hole with outer pack hole, the circulation canal of closing liquid, and then fills out with realizing；To set
When annular space between pipe and sand screen is filled, by opening the circulation canal of liquid, realize that ring is filled out；In addition, being lost when giving up
Hand core pipe drives annular sliding sleeve to move up, and is cut shear pin by shearing boss, realizes the sealing of annular sliding sleeve and interior pack hole,
Exactly because also being cooperated using annular sliding sleeve with interior pack hole, the spring of the prior art is eliminated, therefore, avoids spring
The a small amount of sand sedimentation of wriggling bring, keep the closing of pack hole more reliable with the cooperation for sealing sliding sleeve by shear pin, avoid
The problem of closing failure of pack hole；
Third, the present invention is by compensator and catches the quick connection for catching device, realizes the quick connection of tubing string, and compensator energy
It is enough flexible, construction is facilitated, operating efficiency is improved；In addition, having liquid transition cavity by design, can make on packing tool
Upper circulation canal in connector can be very good to be connected to the lower circulation canal of packing tool lower contact, reduce machine-building at
This, makes it be easily accomplished the connection of the two；
In short, the present invention solves the problems, such as that existing single zone compaction tool is unable to slicing and filling, existing fission is also overcomed
The existing shifting as caused by a small amount of sand of interior filling tubing string and outer filling tubing string in the layering squeeze pack tool of formula design
Difficult problem is moved, its malfunctioning switch is avoided and positions inaccurate problem, easier realizes the layering to multiple oil reservoirs
Ground is filled out to be filled out with ring, moreover, can preferably realize that ring is filled out by establishing liquid circulation channel, improve operating efficiency, is reduced
Cost.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of one group of packing tool of the invention；
Attached drawing 2 is the operation schematic diagram after packing tool steel ball is cast；
Attached drawing 3 is the structural schematic diagram of compensator；
Attached drawing 4 is to catch the structural schematic diagram for catching device；
Attached drawing 5 is the structural schematic diagram of packing tool lower contact；
Attached drawing 6 is the schematic diagram of two layers of filling；
Attached drawing 7 is the schematic diagram of three layers of filling；
In upper figure: compensator 1, core pipe of giving up lower contact 2, packing tool lower contact 3, sealing sliding sleeve 4, layering return connector
5, packing tool top connection 6, packer 7, shearing boss 8, catch catch device 9, packing tool 10, core pipe of giving up 11, ball seat 12, sealing
Cavity 13, inner tube 14, screw buckle 15, gingival cyst of mucous gland in the newborn button 16, snap ring 17, shear pin 18, liquid transition cavity 19, retractable support ring 20, branch
Support boss 21, groove 22, outer pack hole 23, outer tube 24, pipe screw thread 25, sealing ring 26, blind plugging 27, sand screen 28, core pipe 29, punching
Pipe 30, steel ball 31.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment 1, referring to attached drawing 1, a kind of monoblock type slicing and filling device that the present invention mentions, technical solution is: main
It to be connected and be formed by two groups of packing tools 10, sand screen 28, washing pipe 30 and packer 7, the inner cavity of packing tool 10 passes through washing pipe
30 connections, outer wall are connected by sand screen 28, and the top of every group of packing tool 10 is equipped with packer 7, bottom one group of stower
The bottom of tool 10 is equipped with blind plugging 27, and every group of packing tool 10 is separately positioned on corresponding oil reservoir filling position；Wherein, the filling
Tool 10 includes packing tool lower contact 3, sealing sliding sleeve 4, layering return connector 5, packing tool top connection 6, core pipe of giving up 11
With ball seat 12, well casing column is stayed in the connection layering formation of return connector 5 between packing tool top connection 6 and packing tool lower contact 3, loses
Hand core pipe 11 is fixed on the inner cavity for staying well casing column, and the inner cavity of core pipe of giving up 11 is equipped with boss, and ball seat 12 is installed in the top of boss,
Interior pack hole is additionally provided with above boss；The inner wall of the layering return connector 5 is equipped with sealing cavity, is matched by sealing sliding sleeve 4
Turning off or on for external pack hole is closed, and is layered in return connector 5 equipped with upper circulation canal up and down (in referring to Fig.1
Dotted portion), the annular space between top and packing tool top connection 6 and core pipe 11 of giving up is connected to, under lower part and packing tool
The lower circulation canal (dotted portion in referring to Fig.1) being equipped in connector 3 is connected to by liquid transition cavity, is formed by core of giving up
Pipe 11 is by the annular space of interior pack hole, outer pack hole, packing tool 10 and casing, packing tool lower contact 3 and core pipe 11 of giving up
Between annular space, the lower circulation canal of packing tool lower contact 3, liquid transition cavity, be layered return connector 5 upper circulation it is logical
Road, the annular space between packing tool top connection 6 and core pipe 11 of giving up, the entire circulation canal for forming liquid.
It should be understood that upper circulation canal does not intersect with outer pack hole, it is not connected to mutually, upper circulation canal is only under
It is connected between circulation canal, load fluid or liquid is avoided to be directly entered upper circulation canal by outer pack hole.
Wherein, the sealing cavity and sealing sliding sleeve 4 for being layered 5 inner wall of return connector cooperate, and the upside of sealing cavity, which is equipped with, cuts
Boss 8 is cut, downside is equipped with support rim 21, and the downside of sealing sliding sleeve 4 is connected and fixed by shear pin with core pipe 11 of giving up, core of giving up
When pipe 11 above mentions, shearing boss and the top for sealing sliding sleeve 4 interact, so that shear pin be cut, be layered sealing sliding sleeve 4 will
The outer pack hole of return connector 5 seals；In addition, shearing boss 8, which is equipped with sealing ring, realizes that core pipe 11 of giving up divides water to connect with layering
The sealing of first 5 inner wall；Realize give up core pipe 11 and layering return connector 5 inside and outside sealing sliding sleeve 4 by sealing ring respectively
Sealing.
In addition, it is empty to form liquid transition between 3 top of packing tool lower contact on the downside of the inner wall of layering return connector 5
Chamber, wherein the top of packing tool lower contact 3 is local crowning, is contacted by local crowning with layering return connector 5 to shape
At the liquid transition cavity 19, it is equipped with retractable support ring 20 in liquid transition cavity 19, is slided by retractable support ring and sealing
The notch cooperation for covering 4 lower outsides will seal sliding sleeve 4 and be limited in the sealing cavity of layering 5 inner wall of return connector.Therefore, it keeps away
Exempt from there is the problem of a small amount of sand caused by the spring in documents is wriggled, has made to fill by the cooperation of shear pin and sealing sliding sleeve
The closing of filling perforation is more reliable.
Referring to attached drawing 3, the lower end of packing tool lower contact 3 of the invention connects washing pipe 30, is connected and is compensated by washing pipe 30
Device 1, the compensator 1 include inner tube 14, outer tube 24, sealing ring 26, and the lower end of the outer tube 24 is equipped with inner convex platform, with inner tube 14
The outer lug boss at top cooperates, and the outside of the outer lug boss is equipped with one or more sealing ring 26, is existed by inner tube 14
The flexible of compensator 1 is realized in moving up and down for 24 inner cavity of outer tube, and the inner cavity top of outer tube 24 is equipped with pipe screw thread 25.
Further, referring to attached drawing 3, the outer wall of the lower part of inner tube 14 is equipped with multiple gingival cyst of mucous gland in the newborn buttons 16, passes through the horse of inner tube 14
Tooth button 16 and the catcher 9 at 11 top of core pipe of giving up of next group of packing tool 10 cooperate；Be equipped in the catcher 9 multiple groups with
The corresponding snap ring 17 of gingival cyst of mucous gland in the newborn button cooperates, and the snap ring uses round-like structure.
Ball seat 12 is respectively equipped in every group of packing tool 10, the interior latus rectum of each ball seat 12 is by lower layer's packing tool to upper layer
Packing tool is sequentially increased, and the diameter of corresponding steel ball 31 is also to be sequentially increased.
Referring to attached drawing 2, after putting into steel ball 31 in core pipe 11 of giving up, suppressed by liquid, ball seat 12, which is moved downward to, to be lost
Boss in hand core pipe, and steel ball 31 is located at the downside of interior pack hole；And when core pipe 11 of giving up above mentions, ball seat 12 and steel ball are logical
The support for crossing boss is suggested well head, it should be understood that being equipped with sleeve valve at wellhead casing pipe, wherein close casing valve
Door and when being injected downwardly into liquid or load fluid, may be implemented to fill out to Filling sand；When opening sleeve valve and inject
When liquid or load fluid, it may be implemented to fill sand at the annular space between sand screen and casing, i.e. ring is filled out.
Referring to attached drawing 6, a kind of application method for monoblock type slicing and filling device that the present invention mentions, technical solution is packet
Include following steps:
One, lower tubular column: the tripping in blind plugging 27 in the casing of oil well, then tripping in sand screen 28,28 lower part of sand screen and blind plugging
27 connections, then first group of packing tool 10 of tripping in, sand screen 28 are connect with packing tool 10 by packing tool lower contact 3, together
When the give up catcher on 11 top of core pipe connect with the core pipe lower contact 2 of giving up of second group of packing tool 10 by compensator；According to
Secondary connection forms two groups or more packing tool, is equipped with packer 7 on the top of each group of packing tool 10；
Two, it fills out with carrying out first layer and is filled out with ring: putting into the steel ball of first layer respective diameters into core pipe 11 of giving up from well head
31, steel ball falls in the top of the ball seat 12 of the packing tool of first layer, then injects liquid into core pipe 11 of giving up from well head, pressure
Power reaches 18 megapascal or more, and packer 7 is setting, and (schematic diagram when display is packer non-distending in Fig. 6 passes through under lower going-into-well
Liquid suppress rear packer can distending realize it is setting), ball seat 12, which is moved downward at boss, to be stopped, at this point, steel ball be located at it is interior
The downside of pack hole, interior pack hole are opened, formed by give up core pipe 11 by interior pack hole, outer pack hole, packing tool 10 with
The lower circulation canal of annular space, packing tool lower contact 3 between the annular space of casing, packing tool lower contact 3 and core pipe 11 of giving up,
Liquid transition cavity, the upper circulation canal for being layered return connector 5, the annular space between packing tool top connection 6 and core pipe 11 of giving up,
The entire circulation canal for forming liquid；At this moment, the sleeve valve for closing well head closes the circulation canal of liquid, by giving up
Load fluid is injected in core pipe 11, pressure is gradually promoted, and is filled sand to the undermost oil reservoir of oil well, is filled out with carrying out, until reaching
The filling pressure set points of the oil reservoir, stop suppressing, and carry out pressure diffusion, fill out with completing；The sleeve valve for opening well head again, is opened
The circulation canal for opening liquid, by injecting load fluid into core pipe 11 of giving up, pressure is gradually promoted, and load fluid passes through sand screen
Afterwards, liquid flows out the casing of well head by the circulation canal of liquid, and sand is deposited in the annular space between casing and sand screen, directly
It fills up and tamps to annular space, first layer ring is completed into；
Three, it fills out with carrying out the second layer and is filled out with ring: putting into second layer respective diameters into core pipe 11 of giving up from well head for the second time
Steel ball, steel ball falls in the top of the ball seat 12 of the packing tool of the second layer, then injects liquid into core pipe 11 of giving up from well head
Body, pressure reach 18 megapascal or more, and the packer 7 on the packing tool top of the second layer is setting, and ball seat 12 is moved downward to convex
Stop at platform, at this point, steel ball is located at the downside of the interior pack hole of the packing tool of the second layer, interior pack hole is opened, and core of giving up
The downward channel of pipe 11 is blocked, and liquid enters the liquid circulation channel of second layer packing tool；
At this moment, it is again switched off the sleeve valve of well head, the circulation canal of the liquid of second layer packing tool is closed, is passed through
Load fluid is injected in core pipe of giving up 11, pressure is gradually promoted, and fills sand to the oil reservoir of the oil well second layer, it fills out with carrying out, until
The filling pressure set points for reaching the oil reservoir, stop suppressing, and carry out pressure diffusion, the ground for completing the second layer is filled out；Well head is opened again
Sleeve valve, open the circulation canal of liquid, by injecting load fluid in core pipe 11 of giving up, pressure is gradually promoted, load fluid
After sand screen, liquid flows out the casing of well head, sand sedimentation by the circulation canal of the liquid of the packing tool of the second layer
In annular space between the casing and sand screen of the second layer, tamped until filling up, second layer ring is completed into；
Four, it gives up: being formed by packing tool top connection 6, packing tool lower contact 3 and layering return connector 5 and stayed well
Tubing string above proposes core pipe 11 of giving up by wellhead assembly, and core pipe of giving up 11 is moved up by shear pin band dynamic sealing sliding sleeve 4, when being moved to
When shearing boss, shearing boss and the top for sealing sliding sleeve 4 interact, so that shear pin be cut, make outer filling bore closure, by
It stays the tubing string of well casing column and sand screen formation filter sand then to stay in the position of corresponding oil reservoir, provides filter sand for subsequent oil producing operation
Function；Core pipe of giving up 11 drives the compensator of connection and ball seat, the steel ball of inner cavity to propose well head together, completes operation of giving up.
Embodiment 2, referring to attached drawing 7, difference from Example 1 of the present invention is three groups of packing tools of tripping in oil well,
Slicing and filling operation is carried out to three groups of oil reservoirs.When specific operation, step 3 can be repeated, connects and three component layers is filled under lower going-into-well
Tool is filled out, realizes that three layers of hierarchically filling out for oil reservoir are filled out with ring.
Embodiment 3, the present invention is a difference in that with Examples 1 and 2: the outer wall of the lower part of inner tube 14 of the invention is equipped with
Multiple snap rings 17 are cooperated by the snap ring of inner tube 14 and the catcher 9 at 11 top of core pipe of giving up of next group of packing tool 10；Institute
It states and is equipped with multiple groups gingival cyst of mucous gland in the newborn snap fit conjunction corresponding with snap ring in catcher 9, the snap ring uses round-like structure.
Structure of the invention can equally complete to give up core pipe (11) and each group packing tool (10) effectively connect and consolidates
It is fixed, it can equally play the role of embodiment 1 or 2.
The above, is only part preferred embodiment of the invention, and anyone skilled in the art may benefit
Equivalent technical solution is modified or is revised as with the technical solution of above-mentioned elaboration.Therefore, technology according to the present invention
Any simple modification or substitute equivalents that scheme is carried out, belong to the greatest extent the scope of protection of present invention.
Claims (2)
1. a kind of monoblock type slicing and filling device, it is characterized in that: mainly by a group or more of packing tools (10), filter sand
It manages (28), washing pipe (30) and packer (7) connection composition, the inner cavity of packing tool (10) to connect by washing pipe (30), outer wall is logical
Sandpipe (28) connection is filtered, the top of every group of packing tool (10) is equipped with packer (7), bottom one group of packing tool (10)
Bottom is equipped with blind plugging (27), and every group of packing tool (10) is separately positioned on corresponding oil reservoir filling position；Wherein, the stower
Tool (10) includes packing tool lower contact (3), sealing sliding sleeve (4), layering return connector (5), packing tool top connection (6), loses
Hand core pipe (11) and ball seat (12), connection layering return connector between packing tool top connection (6) and packing tool lower contact (3)
(5) it being formed and stays well casing column, core pipe of giving up (11) is fixed on the inner cavity for staying well casing column, and the inner cavity of core pipe of giving up (11) is equipped with boss,
Ball seat (12) is installed in the top of boss, is additionally provided with interior pack hole above boss；The inner wall of the layering return connector (5) is set
There is sealing cavity, turning off or on for external pack hole is cooperated by sealing sliding sleeve (4), and be layered in return connector (5) and be equipped with
Upper circulation canal up and down, the annular space between top and packing tool top connection (6) and core pipe of giving up (11) are connected to, lower part
It is connected to, is formed by core pipe of giving up (11) by liquid transition cavity with the lower circulation canal being equipped in packing tool lower contact (3)
By the annular space of interior pack hole, outer pack hole, packing tool (10) and casing, packing tool lower contact (3) and core pipe of giving up
(11) the lower circulation canal of annular space, packing tool lower contact (3) between, is layered the upper of return connector (5) at liquid transition cavity
Circulation canal, the annular space between packing tool top connection (6) and core pipe of giving up (11), the entire circulation canal for forming liquid；Institute
Liquid transition cavity is formed between on the downside of the inner wall for the layering return connector (5) stated and at the top of packing tool lower contact (3),
In, the top of packing tool lower contact (3) is local crowning, is contacted by local crowning with layering return connector (5) to shape
At the liquid transition cavity, it is equipped with retractable support ring in liquid transition cavity, by under retractable support ring and sealing sliding sleeve (4)
Notch cooperation on the outside of portion will seal sliding sleeve (4) and be limited in the sealing cavity of layering return connector (5) inner wall.
2. monoblock type slicing and filling device according to claim 1, it is characterized in that: in the layering return connector (5)
The sealing cavity and sealing sliding sleeve (4) cooperation of wall, the upside of sealing cavity are equipped with shearing boss, and downside is equipped with support rim, close
The downside of envelope sliding sleeve (4) is connected and fixed by shear pin with core pipe of giving up (11), when core pipe of giving up (11) above mentions, shear boss with it is close
The top interaction of sliding sleeve (4) is sealed, so that shear pin be cut, makes to seal the outer filling of sliding sleeve (4) will return connector (5) are layered
Hole sealing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710958471.7A CN107829778B (en) | 2017-10-16 | 2017-10-16 | A kind of monoblock type slicing and filling device |
| CN201811439239.3A CN109339862B (en) | 2017-10-16 | 2017-10-16 | integral layered filling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710958471.7A CN107829778B (en) | 2017-10-16 | 2017-10-16 | A kind of monoblock type slicing and filling device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811439239.3A Division CN109339862B (en) | 2017-10-16 | 2017-10-16 | integral layered filling device |
Publications (2)
| Publication Number | Publication Date |
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| CN107829778A CN107829778A (en) | 2018-03-23 |
| CN107829778B true CN107829778B (en) | 2018-12-07 |
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| CN201710958471.7A Active CN107829778B (en) | 2017-10-16 | 2017-10-16 | A kind of monoblock type slicing and filling device |
| CN201811439239.3A Active CN109339862B (en) | 2017-10-16 | 2017-10-16 | integral layered filling device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201811439239.3A Active CN109339862B (en) | 2017-10-16 | 2017-10-16 | integral layered filling device |
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| CN (2) | CN107829778B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111042776B (en) * | 2018-10-11 | 2023-08-04 | 中国石油化工股份有限公司 | Anti-crossflow layered filling sand prevention pipe column and method |
| CN109779580B (en) * | 2019-02-22 | 2022-01-25 | 山东立鑫石油机械制造有限公司 | Double-layer bidirectional filling device for layered oil extraction |
| CN109826596A (en) * | 2019-02-22 | 2019-05-31 | 宋肖萍 | A kind of application method of the double-layer double-direction device for filling for oil production by layer |
| CN112814629A (en) * | 2019-11-18 | 2021-05-18 | 东营市蕴东石油科技有限公司 | One-time washing and two-way filling sand prevention pipe column |
| CN113431514B (en) * | 2021-07-08 | 2022-12-27 | 中石化石油工程技术服务有限公司 | Anti-erosion circulation well-flushing tool capable of improving well-flushing effect |
| CN113969765A (en) * | 2021-09-06 | 2022-01-25 | 中海油能源发展股份有限公司 | Horizontal open hole gravel packing tool with standby channel and operation method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107829778A (en) | 2018-03-23 |
| CN109339862A (en) | 2019-02-15 |
| CN109339862B (en) | 2020-01-31 |
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Effective date of registration: 20201208 Address after: Fengxian County 221000 Jiangsu Province, Xuzhou City Song Lou Zhen Feng Huang Ludong Patentee after: Fengxian Feiyang Metal Products Co.,Ltd. Address before: 257 300 No. 85 Yanhe West Road, Dawang Town, Guangrao County, Dongying City, Shandong Province Patentee before: Gao Ruimin |
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Application publication date: 20180323 Assignee: XUZHOU HUACHUANG ELECTRONIC CO.,LTD. Assignor: Fengxian Feiyang Metal Products Co.,Ltd. Contract record no.: X2021320000179 Denomination of invention: An integral layered filling device Granted publication date: 20181207 License type: Exclusive License Record date: 20211227 |
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