CN205977172U - A inflation formula cement injection device for screen pipe crest water flooding bricklayer skill - Google Patents
A inflation formula cement injection device for screen pipe crest water flooding bricklayer skill Download PDFInfo
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- CN205977172U CN205977172U CN201620948344.XU CN201620948344U CN205977172U CN 205977172 U CN205977172 U CN 205977172U CN 201620948344 U CN201620948344 U CN 201620948344U CN 205977172 U CN205977172 U CN 205977172U
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Abstract
The utility model provides an inflation formula cement injection device for screen pipe crest water flooding bricklayer skill, include: cement injection ware body, a sliding block groove on being equipped with feed liquor hole, circulation hole on it and lieing in the inner wall, packer packing element, cover are established and are hugged closely in the lower part of cement injection ware body and with the feed liquor hole, close the hole sliding sleeve, hug closely the inner wall of cement injection ware body, be equipped with on it and close hole sliding sleeve hole and slider fixed orifices, the closing plug seat, fixed connection is equipped with the 2nd sliding block groove on it in closing the hole sliding sleeve, the slider is with a slider fixed orifices and a sliding block groove phase -match that closes the hole sliding sleeve, in still being arranged in slipping into the 2nd sliding block groove from a sliding block groove, the stop collar is located and closes hole sliding sleeve inboard and link to each other, the trompil sliding sleeve, it is inboard and continuous to be located the stop collar, and the upper end outer wall and the inner wall that closes the hole sliding sleeve of trompil sliding sleeve are hugged closely, the inner wall setting of lower clutch is hugged closely to the pitching type isolating valve. The utility model discloses the high operating risk of traditional handicraft has been avoided.
Description
Technical field
This utility model is related to one kind for screen casing crest water flooding mud device in Cementing, and more particularly, to one kind is used for sieving
The expansion type hook-up for cementing of pipe crest water flooding bricklayer's's skill.
Background technology
Screen casing crest water flooding bricklayer's's skill, is generally used for the completion of horizontal well or high angle hole.The horizontal segment of whole pit shaft or
Enter one section of screen casing under High angle section and be then followed by setting of casing up to well head, in order to prevent channelling or the upper sleeve of annular space gas-liquid
Need separate zone production, upper sleeve will carry out well cementing operation.Conventional pipe string structure：Screen casing string+blind plate+external packer of pipe+classification
Hoop+bunch tube.Process implementing：Lower tubular column, to designing well depth, is realized building the pressure by the injection drilling fluid into pipe, first rise tube sealing covering
Every device, then open sizing collar circulation port.The effect of wherein blind plate is to realize building the pressure in pipe, blind plate top cement mortar during well cementation
Prevent it from entering screen casing；Packer rises to be honored as a queen and isolates screen casing and the outer annular space of upper sleeve, prevents cement mortar from entering screen casing lower loop
Empty.Packer rises and opens sizing collar circulation port after sealed knot bundle and set up circulation canal, carries out upper sleeve well cementing operation.
In traditional handicraft tubing string, because the presence of blind plate makes isolation inside and outside sleeve pipe, it is closing space in sleeve pipe.In setting of casing
In process middle sleeve, the vibration of fluid column can produce certain surge pressure, exist and lead to sizing collar easily to shift to an earlier date perforate, pipe covering
The risk of the envelope that rises in advance every device.
Meanwhile, there is drilling fluid in the presence of blind plate, inside needs timely off set drilling all the time outside tubing string during lower tubular column
Liquid, to offset tubing string inside and outside differential pressure, increased the casing job time.And before sizing collar perforate cannot circulating fluid,
Once leakage occurring or being hampered and can only play sleeve pipe, so this traditional technique also limit the process handss to down-hole abnormal conditions
Section.
In traditional handicraft, when tubing string is transferred or above carried, intraluminal fluid post produces pressure oscillation, if causing stage cementing to shift to an earlier date
Perforate, cannot rise sealing tube external packer then, then cannot complete well cementing operation, bring loss to engineering.
Utility model content
Feature and advantage of the present utility model are partly stated in the following description, or can be aobvious and easy from this description
See, or can be learnt by putting into practice this utility model.
For overcoming problem of the prior art, this utility model provides a kind of expansion type for screen casing crest water flooding bricklayer's's skill
Hook-up for cementing is it is characterised in that include：
Cementing device body, its two ends is connected with top connection and lower contact respectively；Described cementing device body be provided with into
Fluid apertures, circulation port and the first slip recess on the inwall of described cementing device body, described first slip recess
Bottom surface has the first inclined plane；
Packing element, is set in the bottom of described cementing device body；With on described cementing device body described in enter
Fluid apertures is close to；
Close hole sliding sleeve, be close to the inwall setting of described cementing device body, described pass hole sliding sleeve is provided with pass hole sliding sleeving hole
And slide block fixing hole；
Close obturating plug, be fixedly connected in the sliding sleeve of described pass hole, described closing obturating plug is provided with the second slip recess；
Slide block, in the slide block fixing hole and described first slip recess of described pass hole sliding sleeve, is used for realizing described pass
Spacing between hole sliding sleeve and described cementing device body；The bottom of described slide block is provided with and is matched with described first inclined plane
Second inclined plane, is used for enabling described slide block to skid off from described first slip recess and to enter into described second slip recess
Interior；
Stop collar, positioned at the inner side of described pass hole sliding sleeve, and is connected with closing hole sliding sleeve；
Perforate sliding sleeve, positioned at the inner side of described stop collar, and is connected with described stop collar；The upper end of described perforate sliding sleeve
Outer wall is close to the inwall of described pass hole sliding sleeve, and the cross-sectional area of the upper end of described perforate sliding sleeve is more than the cross section of lower end
Long-pending；
Ball-throwing type isolating valve, is close to the inwall setting of described lower contact, and described ball-throwing type isolating valve includes valve body, is arranged on
The isolation sliding sleeve for closing described isolation valve opening that the isolation valve opening of described valve body lower end is close to described valve interior wall；Institute
The upper end inwall stating isolation sliding sleeve is provided with ball seat.
Preferably, the inwall of described cementing device body is provided with guide pin, and the outer wall of described pass hole sliding sleeve is provided with strip
Gathering sill, for accommodating described guide pin.
Preferably, the inwall of described pass hole sliding sleeve is provided with the first limited step, for the lower edge with described closing obturating plug
Match.
Preferably, described cementing device body is provided with the second limited step, for the lower edge with described pass hole sliding sleeve
Match.
Preferably, described stop collar is connected with described pass hole sliding sleeve by screw thread；Described stop collar pass through pin with described
Perforate sliding sleeve is connected.
Preferably, described perforate sliding sleeve is provided with balance pipe.
Preferably, described perforate sliding sleeve is provided with perforate sliding sleeve draw-in groove, and described stop collar is provided with and described perforate sliding sleeve
The perforate sliding sleeve jump ring that draw-in groove matches；Described pass hole sliding sleeve is provided with pass hole sliding sleeve jump ring, and described cementing device body sets
There is the pass hole sliding sleeve draw-in groove matching with described pass hole sliding sleeve draw-in groove.
Preferably, described isolation sliding sleeve is provided with isolation sliding sleeve draw-in groove, the valve body of described ball-throwing type isolating valve be provided with
The isolation sliding sleeve jump ring that described isolation sliding sleeve draw-in groove matches.
Preferably, it is provided with multiple wiper blocks around the outer wall of described lower contact.
Preferably, also include two protrusion-dispelling rings, be located at the two ends of described packing element respectively；Described protrusion-dispelling ring passes through tight
Gu nail is fixed on described cementing device body.
This utility model provides the expansion type hook-up for cementing for screen casing crest water flooding bricklayer's's skill, and this device collection is classified
Cementing device, external packer of pipe, isolator are integrated.Instead of the blind plate knot in traditional handicraft tubing string with sleeve type isolating device
Structure, changes the version of traditional tubing string.Avoid surge pressure during setting of casing, it is to avoid the high work of traditional handicraft
Industry risk.
By reading description, those of ordinary skill in the art will be best understood the feature of these technical schemes and interior
Hold.
Brief description
It is specifically described this utility model below with reference to accompanying drawing and with reference to example, advantage of the present utility model and realization
Mode will become apparent from, and wherein shown in accompanying drawing, content is only used for explanation of the present utility model, and does not constitute to this reality
With the new restriction gone up in all senses, in the accompanying drawings：
Fig. 1 is the structure of the expansion type hook-up for cementing for screen casing crest water flooding bricklayer's's skill of this utility model embodiment
Schematic diagram.
Fig. 2 is that the expansion type hook-up for cementing for screen casing crest water flooding bricklayer's's skill shown in Fig. 1 is in perforate state
Structural representation.
Fig. 3 is that being in of the expansion type hook-up for cementing for screen casing crest water flooding bricklayer's's skill shown in Fig. 1 closes poroid state
Structural representation.
Specific embodiment
As shown in Figure 1 to Figure 3, this utility model provides a kind of expansion type cementing for screen casing crest water flooding bricklayer's's skill
Device, including：
Cementing device body 2, its two ends is connected with top connection 1 and lower contact 4 respectively, and for example cementing device body 2 passes through
Screwed connection top connection 1 and lower contact 4, usually, between top connection 1 and cementing device body 2 and lower contact 4 and classification
It is additionally provided with sealing ring between hoop body 2；Cementing device body 2 is provided with inlet opening 6, circulation port 9 and is located at cementing device originally
The first slip recess 51 on the inwall of body 2, the bottom surface of the first slip recess 51 has the first inclined plane 53；
Packing element 3, is set in the bottom of cementing device body 2；It is close to the inlet opening 6 on cementing device body 2；
Close hole sliding sleeve 7, be close to the inwall setting of cementing device body 2, close hole sliding sleeve 7 be provided with pass hole sliding sleeving hole 17 and
Slide block fixing hole 55；
Close obturating plug 8, be fixedly connected in pass hole sliding sleeve 7, for example, pass through shear pin 29 and mutually fix with closing hole sliding sleeve 7；Close
Obturating plug 8 is provided with the second slip recess 52；
Slide block 31, in the slide block fixing hole 55 closing hole sliding sleeve 7 and the first slip recess 51, for realizing closing hole sliding sleeve
Spacing between 7 and cementing device body 2；The bottom of slide block 31 is provided with the second inclined plane matching with the first inclined plane 53
57, it is used for so that slide block 31 is skidded off from the first slip recess 51 and to enter in the second slip recess 52；On slide block 31
Two inclined planes 57 and the first inclined plane 53 on the first slip recess 51 are to be close to that is to say, that the first inclined plane 53 and second
The inclination angle of inclined plane 57 horizontal plane is the same；Close hole sliding sleeve 7 descending when, slide block 31 can be subject to a downward power, from
And so that slide block 31 is skidded off from the first slip recess 51 and enter in the second slip recess 52.It should be noted that working as slide block
31 when being located in the slide block fixing holes 55 closing hole sliding sleeve 7 and the first slip recess 51, close pass hole sliding sleeving hole 17 on hole sliding sleeve 7 with
Circulation port 9 on cementing device body 2 is connected to logical, that is, close hole sliding sleeving hole 17 and flush with circulation port 9；Work as shut-off plug
Seat 8 descending when, slide block 31 will skid off from the first slip recess 51 and enter in the second slip recess 52, more specifically,
Now, slide block is located in the slide block fixing hole 55 closing hole sliding sleeve 7 and the second slip recess 52, closes obturating plug 8 and comes downwards to the first limit
To follow closing obturating plug 8 descending together, thus closing circulation port 9 so that closing hole sliding sleeve 7 for position step 32；
Stop collar 18, positioned at the inner side closing hole sliding sleeve 7, and is connected with closing hole sliding sleeve 7, in the present embodiment, stop collar 18
Screwed connection can be passed through with closing hole sliding sleeve 7；
Perforate sliding sleeve 5, positioned at the inner side of stop collar 18, and is connected with stop collar 18, and specifically, perforate sliding sleeve 5 can lead to
Cross pin to be connected with stop collar 18；The upper end of the perforate sliding sleeve 5 i.e. outer wall near top connection 1 one end and the inwall closing hole sliding sleeve 7
It is close to；The upper end of the perforate sliding sleeve 5 i.e. cross-sectional area near top connection 1 one end is more than lower end i.e. near the horizontal stroke of lower contact 4 one end
Sectional area, is used for realizing perforate sliding sleeve 5 under uniform pressure environment, and two ends active force is different and slide downward；When perforate sliding sleeve 5
After downslide, above-mentioned stop collar 18 just can make the lower end position that the top of perforate sliding sleeve 5 rests on circulation port 9 and closes hole sliding sleeving hole 17
Put, make the circulation port 9 being interconnected and pass hole sliding sleeving hole 17 be in open mode；
Ball-throwing type isolating valve 40, is close to the inwall setting of lower contact 4, and ball-throwing type isolating valve 40 includes valve body 41, is arranged on
The isolation sliding sleeve 44 for closing isolation valve opening 43 that the isolation valve opening 43 of valve body lower end is close to valve interior wall；Wherein, isolate
The upper end inwall of sliding sleeve 44 is provided with ball seat 42.
In the present embodiment, perforate sliding sleeve 5 is provided with perforate sliding sleeve draw-in groove 20, and stop collar 18 is provided with and perforate sliding sleeve draw-in groove
The perforate sliding sleeve jump ring 21 that 20 match, for when perforate sliding sleeve 5 reaches the lower limit that stop collar 18 limits, entering perforate and sliding
Set draw-in groove 20, thus realize the locking of perforate sliding sleeve 5.Equally, isolation sliding sleeve 44 can also arrange isolation sliding sleeve draw-in groove 25,
The valve body 41 of ball-throwing type isolating valve 40 is provided with and isolates the isolation sliding sleeve jump ring 26 that sliding sleeve draw-in groove 25 matches.
For avoiding " dead space " between perforate sliding sleeve 5 and cementing device body 2 to exist, balance can be arranged on perforate sliding sleeve 5
Hole 28.For preventing packing element 3 in the envelope process packing element edge break that rises, can be respectively provided with the two ends of packing element 3
Protrusion-dispelling ring 13, protrusion-dispelling ring 13 can be fixed on cementing device body 2 by fastening nail 39, to strengthen protrusion-dispelling ring to packer rubber
The compression of cylinder 3.
In the present embodiment, also include multiple wiper blocks 10, e.g. 8, be arranged on the outer wall of lower contact 4, those are helped
Positive block 10 can enter process effective protection packing element 3 under tubing string and cementing device body 2 is not collided with.Additionally, closing hole
Shaping-orientation groove 34 and guide pin 35 between sliding sleeve 7 and cementing device body 2, specifically, in the inwall setting of cementing device body 2
Guide pin 35, arranges the gathering sill 34 of strip, for accommodating guide pin 35 in the outer wall closing hole sliding sleeve 7；So closing hole cunning
Set 7 just can play the guiding role when sliding, and when boring except inner sleeve in the later stage, has anti-rotating function, usually, the length of gathering sill 34
It is not less than and close the ultimate range that hole sliding sleeve 7 can be descending.
In the present embodiment, the inwall closing hole sliding sleeve 7 is provided with the first limited step 32, for the lower edge with closing obturating plug 8
Match.Cementing device body 2 is provided with the second limited step 36, for matching with the lower edge closing hole sliding sleeve 7.When pass hole
When sliding sleeve 7 lower end touches limited step 36, enter positioned at the pass hole sliding sleeve jump ring 23 closing on hole sliding sleeve 7 and be located at cementing device originally
Pass hole sliding sleeve draw-in groove 22 on body 2, thus realize closing the locking of hole sliding sleeve 7.
Additionally, all designing black box between each part described in this device it is ensured that sealing between each part.
A kind of expansion type hook-up for cementing for screen casing crest water flooding bricklayer's's skill of this utility model, including top connection 1, note
Cement device body 2, packing element 3, lower contact 4, the ball-throwing type isolating valve 40 being located in lower contact 4, and it is located at cementing
Perforate sliding sleeve 5 within device 2, pass hole sliding sleeve 7 and pass stopple seat 8；The top female connector pipe of top connection 1, bottom then pass through screw thread with
Cementing device body 2 connects.Cementing device body 2 outer surface is uniformly distributed circulation port 9.Packing element 3 is arranged on cementing
The bottom of device body 2, the bottom of cementing device body 2 is provided with inlet opening 6, in communicating pipe with packing element 3, realize envelope
Rise envelope every device.Screwed connection lower contact 4 is passed through in cementing device body 2 lower end.Wherein lower contact 4 body peripheral is helped to being uniformly distributed
Positive block 10, enters well process protecting packer packing element 3 and cementing device body 2 in tubing string.The internal setting ball-throwing type isolation of lower contact 4
Valve 40, ball-throwing type isolating valve 40 is provided with isolation valve opening 43, and for entering process under tubing string, lower tubular column in connection, thus avoid
Enter the presence of process inside and outside differential pressure under tubing string, can achieve automatic grouting again.
It can be seen that, the expansion type hook-up for cementing for screen casing crest water flooding bricklayer's's skill being provided using this utility model is in pipe
Enter the inside and outside connection of process pipe under post, under enter process and can voluntarily be in the milk, the water that the fluid column covering closed frame tube space produces can be avoided
Hit pressure.Carry out packing element 3 by the pitching mode of building the pressure to rise envelope, continuing to build the pressure makes perforate sliding sleeve slides downwards, cementing device this
The inside and outside connection of body 2 body, simultaneously closes off inlet opening and is forever filled in inside packing element by liquid.Close stopple 33 to replace in well cementation
Slurry put in place bruising when, push pass stopple seat and drive that to close hole sliding sleeve descending and close circulation port.
A kind of expansion type hook-up for cementing for screen casing crest water flooding bricklayer's's skill providing with reference to this utility model
Using method this utility model is expanded on further.
During entering under tubing string, because the cementing device body 2 of hollow and the presence of isolation valve opening 43 are so that in tubing string
Outer connection, when arriving design attitude under tubing string, puts into the ball 14 that builds the pressure in well head is to tubing string, pumps, by small displacement, the ball 14 that builds the pressure
To the ball seat 42 of ball-throwing type isolating valve 40 it is achieved that the closing of top tubing string.The 5MPa that builds the pressure after tubing string inner sealing realizes isolation
The closing isolation to isolation valve opening 43 for the sliding sleeve 44, continues in tubing string to build the pressure, liquid enters packing element by inlet opening 6 first
Realize packer inside 3 to rise envelope.
As shown in Fig. 2 continuing to build the pressure to 15MPa when packing element 3 fully rises to be honored as a queen, due to the horizontal stroke of perforate sliding sleeve upper end
Sectional area is more than the cross-sectional area of perforate sliding sleeve lower end, therefore under same pressure environment, acts on the effect of perforate sliding sleeve upper end
Power is more than the active force acting on perforate sliding sleeve lower end, thus realizing perforate sliding sleeve 5 slide downward, closes hole sliding sleeving hole 17 and circulation
Hole 9 forms communicating passage inside and outside cementing device.When perforate sliding sleeve 5 is snapped down to stop collar 18, realize the lower limit of perforate sliding sleeve,
Now, perforate sliding sleeve jump ring 21 enters perforate sliding sleeve draw-in groove 20, realizes the locking of perforate sliding sleeve 5.Perforate sliding sleeve 5 bottom is closed simultaneously
Close inlet opening 6, realize circulation and the cementing conditions of whole tubing string upper sleeve.
As shown in figure 3, in well cementation, cement injection terminates, stopple 33 is closed in release, for slurry, moves to pass when closing stopple 33
During stopple seat 8, seal engagement therewith, i.e. well cementation, for slurry bruising, continues additional 5MPa pressure after bruising, now, close stopple seat 8 with
The shear pin 29 closing between hole sliding sleeve 7 is cut off, and slide block 31 is under down force due to the first inclined plane 53 and the second inclined plane
57 same inclination angle smooth connect slide to the second slip recess 52, that is, close the limit between hole sliding sleeve 7 and cementing device body 2
Position inefficacy, closes stopple seat 8 and is snapped down to the first limited step 32, and pass stopple 33 pushes pass stopple seat 8 and drives pass hole sliding sleeve 7 descending,
So that close hole sliding sleeving hole 17 being staggered with circulation port 9 on cementing device body 2, realize closing hole action；Come downwards to when closing hole sliding sleeve 7
When lower end touches the second limited step 36, close hole sliding sleeve jump ring 23 and enter to enter the GATT hole sliding sleeve draw-in groove 22, realize closing the lock of hole sliding sleeve 7
Gu, that is, complete screen casing crest water flooding mud construction technology.
Modularized design is taken in lower contact of the present utility model, for simplifying structure, takes and non-cut de- formula ball seat in straight well
Structure design.After putting in place under sleeve pipe pitching to this non-cut de- ball seat position, after building the pressure direct spreading packer and realize open set
Descending perforate.
This utility model provides a kind of expansion type hook-up for cementing for screen casing crest water flooding bricklayer's's skill.This device master
Top connection to be included, lower contact, cementing device body, packing element and ball-throwing type isolating valve.Built the pressure ball by throwing, close every
From valve, realize packer and rise envelope, build the pressure in pipe and realize cementing device circulation port and open, and special pass stopple carries out cementing
Device circulation port closes hole.The cementing device body of this utility model device and packing element take integrated design, simplify biography
System process pipe string structure, sleeve type isolates the surge pressure that valve gear avoids the blind plate structure in traditional handicraft tubing string to produce, and throws
Ball isolation valve arrangement replaces blind plate, makes the inside and outside connection of sleeve pipe, it is to avoid the presence of surge pressure in pipe during lower tubular column.Also keep away
Exempt from setting of casing process frequently to drilling fluid charge in pipe to balance inside and outside differential pressure, save the activity duration, reduces cost, effectively reduce well
Lower operating risk.Pipe string under enter during occur being hampered, the complex situations such as leakage when can the circulation of turn on pump small displacement, carry out follow-up
Process, change the technique drawback that conventional tube string can not circulate.Packing element is designed with anti-lug structure, Protection glue up and down
Cylinder under enter during not frayed, rise envelope during prevent expansion process cause rubber rupture.It is arranged on lower contact periphery
Wiper block enters process effective protection packing element under tubing string and sizing collar is not collided with.Internal structure is all bored except gold using easy
Belong to material, not only ensured strength of parts but also facilitated follow-up inner sleeve to bore to remove operation, brill is consistent with sleeve pipe, favorably except rear whole device latus rectum
In follow-up completion practice.This utility model device, takes module design principle, will build the pressure and isolated part design can assembled
Lower contact in, the lower contact of different structure can be can be selected for, tied accordingly also dependent on special process according to different well's conditionses
Structure adjusts.
The preferred embodiment of the present utility model above by reference to brief description, those skilled in the art are new without departing from this practicality
The scope and spirit of type, can have multiple flexible programs to realize this utility model.For example, as the part of an embodiment
The feature illustrating or describing can be used for another embodiment to obtain another embodiment.These are only that this utility model is preferably feasible
Embodiment, not thereby limits to interest field of the present utility model, all utilization this utility model description and accompanying drawing content
The equivalence changes made, are both contained within interest field of the present utility model.
Claims (10)
1. a kind of expansion type hook-up for cementing for screen casing crest water flooding bricklayer's's skill is it is characterised in that include：
Cementing device body (2), its two ends is connected with top connection (1) and lower contact (4) respectively；Described cementing device body (2)
It is provided with inlet opening (6), circulation port (9) and the first slip recess on the inwall of described cementing device body (2)
(51), the bottom surface of described first slip recess (51) has the first inclined plane (53)；
Packing element (3), is set in the bottom of described cementing device body (2)；With the institute on described cementing device body (2)
State inlet opening (6) to be close to；
Close hole sliding sleeve (7), be close to the inwall setting of described cementing device body (2), described pass hole sliding sleeve is provided with pass hole sliding sleeve
Hole (17) and slide block fixing hole (55)；
Close obturating plug (8), be fixedly connected in described pass hole sliding sleeve (7), described closing obturating plug is provided with the second slip recess
(52)；
Slide block (31), in the slide block fixing hole (55) and described first slip recess (51) in described pass hole sliding sleeve (7), is used for
Realize spacing between described pass hole sliding sleeve (7) and described cementing device body (2)；The bottom of described slide block (31) is provided with and institute
State the second inclined plane (57) that the first inclined plane (53) matches, be used for making the described slide block (31) can be from described first slip recess
(51) skid off in and enter in described second slip recess (52)；
Stop collar (18), positioned at the inner side in described pass hole sliding sleeve (7), and is connected with closing hole sliding sleeve (7)；
Perforate sliding sleeve (5), positioned at the inner side of described stop collar (18), and is connected with described stop collar (18)；Described perforate sliding sleeve
(5) outer wall of upper end is close to the inwall in described pass hole sliding sleeve (7), and the cross-sectional area of the upper end of described perforate sliding sleeve (5)
Cross-sectional area more than lower end；
Ball-throwing type isolating valve (40), is close to the inwall setting of described lower contact (4), and described ball-throwing type isolating valve (40) includes valve body
(41), be arranged on that the isolation valve opening (43) of described valve body (41) lower end is close to described valve interior wall for close described every
Isolation sliding sleeve (44) from valve opening (43)；The upper end inwall of described isolation sliding sleeve (44) is provided with ball seat (42).
2. it is used for the expansion type hook-up for cementing of screen casing crest water flooding bricklayer's's skill according to claim 1 it is characterised in that institute
The inwall stating cementing device body (2) is provided with guide pin (35), and the outer wall in described pass hole sliding sleeve (7) is provided with the gathering sill of strip
(34), for accommodating described guide pin (35).
3. it is used for the expansion type hook-up for cementing of screen casing crest water flooding bricklayer's's skill according to claim 1 it is characterised in that institute
The inwall stating pass hole sliding sleeve (7) is provided with the first limited step (32), for matching with the described lower edge closing obturating plug (8).
4. it is used for the expansion type hook-up for cementing of screen casing crest water flooding bricklayer's's skill according to claim 1 it is characterised in that institute
State cementing device body (2) and be provided with the second limited step (36), match for the lower edge with described pass hole sliding sleeve (7).
5. it is used for the expansion type hook-up for cementing of screen casing crest water flooding bricklayer's's skill according to claim 1 it is characterised in that institute
State stop collar (18) to be connected with described pass hole sliding sleeve (7) by screw thread；Described stop collar (18) is passed through pin and is slided with described perforate
Set (5) is connected.
6. it is used for the expansion type hook-up for cementing of screen casing crest water flooding bricklayer's's skill according to claim 1 it is characterised in that institute
State perforate sliding sleeve (5) and be provided with balance pipe (28).
7. it is used for the expansion type hook-up for cementing of screen casing crest water flooding bricklayer's's skill according to claim 1 it is characterised in that institute
State perforate sliding sleeve (5) and be provided with perforate sliding sleeve draw-in groove (20), described stop collar (18) is provided with and described perforate sliding sleeve draw-in groove
(20) perforate sliding sleeve jump ring (21) matching；；Described pass hole sliding sleeve (7) is provided with pass hole sliding sleeve jump ring (23), described water filling
Mud device body (2) is provided with pass hole sliding sleeve draw-in groove (22) matching with described pass hole sliding sleeve draw-in groove.
8. it is used for the expansion type hook-up for cementing of screen casing crest water flooding bricklayer's's skill according to claim 1 it is characterised in that institute
State isolation sliding sleeve (44) and be provided with isolation sliding sleeve draw-in groove (25), the valve body (41) of described ball-throwing type isolating valve be provided with described every
Isolation sliding sleeve jump ring (26) matching from sliding sleeve draw-in groove (25).
9. it is used for the expansion type hook-up for cementing of screen casing crest water flooding bricklayer's's skill according to claim 1 it is characterised in that institute
It is provided with multiple wiper blocks (10) around the outer wall stating lower contact (4).
10. according to claim 1 be used for screen casing crest water flooding bricklayer's's skill expansion type hook-up for cementing it is characterised in that
Also include two protrusion-dispelling rings (13), be located at the two ends of described packing element (3) respectively；Described protrusion-dispelling ring (13) is followed closely by fastening
(39) it is fixed on described cementing device body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620948344.XU CN205977172U (en) | 2016-08-26 | 2016-08-26 | A inflation formula cement injection device for screen pipe crest water flooding bricklayer skill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620948344.XU CN205977172U (en) | 2016-08-26 | 2016-08-26 | A inflation formula cement injection device for screen pipe crest water flooding bricklayer skill |
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| Publication Number | Publication Date |
|---|---|
| CN205977172U true CN205977172U (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620948344.XU Active CN205977172U (en) | 2016-08-26 | 2016-08-26 | A inflation formula cement injection device for screen pipe crest water flooding bricklayer skill |
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| CN (1) | CN205977172U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869114A (en) * | 2017-12-01 | 2019-06-11 | 中石化石油工程技术服务有限公司 | A kind of packing formula stage cementing device and its operational method |
| CN111749642A (en) * | 2020-08-11 | 2020-10-09 | 中国石油集团渤海钻探工程有限公司 | Novel pressure control integrated upper sealing well completion tool |
| CN112443290A (en) * | 2019-08-28 | 2021-03-05 | 中国石油化工股份有限公司 | Anchoring packing cement surface control device and well cementation tubular column comprising same |
| CN112443289A (en) * | 2019-08-27 | 2021-03-05 | 中国石油化工股份有限公司 | Packing type stage cementing device |
-
2016
- 2016-08-26 CN CN201620948344.XU patent/CN205977172U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869114A (en) * | 2017-12-01 | 2019-06-11 | 中石化石油工程技术服务有限公司 | A kind of packing formula stage cementing device and its operational method |
| CN109869114B (en) * | 2017-12-01 | 2021-09-17 | 中石化石油工程技术服务有限公司 | Packing type stage cementing device and operation method thereof |
| CN112443289A (en) * | 2019-08-27 | 2021-03-05 | 中国石油化工股份有限公司 | Packing type stage cementing device |
| CN112443289B (en) * | 2019-08-27 | 2023-01-20 | 中国石油化工股份有限公司 | Packing type stage cementing device |
| CN112443290A (en) * | 2019-08-28 | 2021-03-05 | 中国石油化工股份有限公司 | Anchoring packing cement surface control device and well cementation tubular column comprising same |
| CN111749642A (en) * | 2020-08-11 | 2020-10-09 | 中国石油集团渤海钻探工程有限公司 | Novel pressure control integrated upper sealing well completion tool |
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