CN201507270U - Inner tube type drilling-free multi-stage cementing tool assembly - Google Patents
Inner tube type drilling-free multi-stage cementing tool assembly Download PDFInfo
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- CN201507270U CN201507270U CN2009201621530U CN200920162153U CN201507270U CN 201507270 U CN201507270 U CN 201507270U CN 2009201621530 U CN2009201621530 U CN 2009201621530U CN 200920162153 U CN200920162153 U CN 200920162153U CN 201507270 U CN201507270 U CN 201507270U
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- pressure transmission
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- box cupling
- sleeve
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Abstract
The utility model relates to an inner tube type drilling-free multi-stage cementing tool assembly for an oil gas solid completion well; the assembly is composed of an insertion type inner tube assembly, a multi-stage cementing device assembly and a locating device; a locating groove is arranged in the middle inside a locating collar (1), an elastic claw (2) is hidden in the groove of a locating collar body (5), an elastic claw retaining sleeve (3) is fixed on the locating collar body (5), a limit baffle ring (4) is connected with the locating collar body (5) by internal screw threads, the lower end of a cross-over joint (7) is connected with an outer sleeve (14) by omega-shaped screw threads, a hole-closing pressure transferring valve (9) is fixed on a convex plate of a hole-closing pressure transferring valve body (8), a hole-closing sleeve (13) is fixed in the outer sleeve (14) by a pin, a hole-opening sleeve (15) is fixed in the outer sleeve (14) by a pin, and a hole-opening pressure transferring valve (19) is fixed on the convex plate of a rubber stopper seat (18) by a pin. The inner tube type drilling-free multi-stage cementing tool assembly leaves no cement mantles when carrying out the cementing operation without the follow-up drilling-out procedure, therefore, the working time is saved.
Description
Technical field
The utility model relates to the instrument that the solid completion practice of oil gas field is used, and particularly exempting to bore ash plug stage cementing instrument is that a kind of interior tubular type exempts to bore stage cementing instrument assembly, belongs to the downhole tool class.
Background technology
In recent years, domestic oil field deep well, ultradeep well get more and more, conventional single-stage cementing well mode has not satisfied the deep well cementing needs, the application of stage cementing instrument and technology has then solved this problem, and after the conventional classification well cementation, all need bore ash plug flow chart, bore the operation of ash plug and have length consuming time, bore problems such as the borehole wall is rough in the ash plug section of back, cement sheath is impaired.
Summary of the invention
The purpose of this utility model provides a kind of interior tubular type and exempts to bore stage cementing instrument assembly, can realize need not to bore the operation of ash plug after the well cementation, thereby save drilling period, the raising cementing quality.
For achieving the above object, the technical solution adopted in the utility model is: by the plug-in type inner tube assembly, stage cementing device assembly and positioner are formed, the plug-in type inner tube assembly is mainly by interior pipe upper packer, close hole pressure transmission valve body, close hole pressure transmission valve, close the hole interstage sleeve, packer in the interior pipe, the plug seat, perforate pressure transmission valve, interior pipe lower packet, reverse ball-and-seat, interior pipe centralizer, wall scraper, the perforate guide shoe is formed, the stage cementing device assembly is mainly by closing borehole jack, outer sleeve, the perforate cover, inner sleeve, external packer of pipe is formed, positioner is mainly by the location box cupling, elastic claw, the elastic claw interstage sleeve, limit baffle ring, location box cupling body is formed, it is trapezoidal groove that there is axial cross section box cupling bosom position, location, location box cupling body outer surface of upper has at least three grooves, elastic claw quantity consistent with this groove quantity and its be hidden in the groove, elastic claw interstage sleeve top is thin plate, it is being located the box cupling body by dowel fixes, elastic claw interstage sleeve front end blocks elastic claw, its length of blocking elastic claw part comes downwards to the distance of limit baffle ring less than the elastic claw interstage sleeve, and limit baffle ring has internal thread and locatees the box cupling body and be connected; Location box cupling body is connected with box cupling with interior pipe upper packer; The snapping of change head is arranged between location box cupling and the outer sleeve, become snapping head upper end and be the conventional criteria connecting thread, employing Ω type is threaded between lower end and the outer sleeve; Interior pipe upper packer is connected with pass hole pressure transmission valve body with box cupling, closing outside, hole pressure transmission valve body middle part is a boss, closing hole pressure transmission valve front end has dowel fixes closing on the hole pressure transmission valve body boss, close the hole interstage sleeve with the inboard of dowel fixes at pass borehole jack pressure transmission valve body correspondence position, close hole pressure transmission valve interior lower end one step is arranged, its step end face with close hole pressure transmission valve body boss lower end cavity arranged, close hole pressure transmission valve body and leave the hole at the cavity middle part, close the hole interstage sleeve and should block this hole fixedly the time; Closing hole pressure transmission valve body is connected with packer in the interior pipe with box cupling; There is step the inner sleeve lower end, form cavity between its step end face and external surface and the outer sleeve inner surface, the built-in pass of cavity front end borehole jack, close borehole jack with dowel fixes in outer sleeve, the perforate cover with dowel fixes in the outer sleeve inboard, the inner sleeve front end leaves pressure transmission hole, and outer sleeve leaves intercommunicating pore at the cavity lower end position; Inner sleeve links to each other with outer two public pipe nipples with internal thread; Packer connects the plug seat with box cupling in the interior pipe, there is interior step plug seat lower end, its external surface is positioned at the step medium position boss, perforate pressure transmission valve with dowel fixes on boss, a hole is left in the boss bottom, there is interior step perforate pressure transmission valve lower end, and step upper surface and plug seat boss lower surface, plug seat external surface, perforate pressure transmission valve inner surface form cavity in it, and the plug seat leaves pressure transmission hole at the cavity middle part; Two public pipe nipples in plug seat lower end connects with box cupling, pipe lower packet in interior two public pipe nipples connect with box cupling, interior pipe lower packet connects reverse ball-and-seat with box cupling, the spool top be hemispherical and with valve body in the hemispherical incline bench suitable; Oppositely the ball-and-seat lower end has internal thread to be connected with interior pipe centralizer, interior pipe centralizer is identical with conventional cannula centralizer shape, outer be the helical form wiper block, and interior pipe centralizer lower end is connected with the wall built-up device with external screw thread, between wall built-up device and the perforate guide shoe below pair public pipe nipples be connected.
When pass borehole jack and perforate cover were fixed in the outer sleeve, closing borehole jack length should overlap Bottom Runby greater than perforate; The length that perforate cover lower end surface overlaps greater than perforate to the distance of inner sleeve lower step end face.
Fixedly the pin diameter of perforate cover should be less than the fixing diameter that closes borehole jack.
The beneficial effects of the utility model are: tubular type in cementing tool adopts, behind the cemented up well head is proposed instrument, and do not stay cement plug in the sleeve pipe, bore the operation of ash plug after the release cementing, save the drilling well duration, guarantee cementing quality.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
The utility model is described in more detail below in conjunction with accompanying drawing 1.
The utility model is mainly by the plug-in type inner tube assembly, stage cementing device assembly and positioner are formed, the plug-in type inner tube assembly is mainly by interior pipe upper packer 6, close hole pressure transmission valve body 8, close hole pressure transmission valve 9, close hole interstage sleeve 10, packer 12 in the interior pipe, plug seat 18, perforate pressure transmission valve 19, interior pipe lower packet 22, reverse ball-and-seat 23, interior pipe centralizer 24, wall scraper 25, perforate guide shoe 27 is formed, the stage cementing device assembly is mainly by closing borehole jack 13, outer sleeve 14, perforate cover 15, inner sleeve 16, external packer of pipe 20 is formed, positioner is mainly by location box cupling 1, elastic claw 2, elastic claw interstage sleeve 3, limit baffle ring 4, location box cupling body 5 is formed, it is trapezoidal groove that there is axial cross section box cupling 1 bosom position, location, location box cupling body 5 outer surface of upper have at least three grooves, elastic claw 2 quantity consistent with this groove quantity and its be hidden in the groove, elastic claw interstage sleeve 3 tops are thin plate, it is being located box cupling body 1 by dowel fixes, elastic claw interstage sleeve 3 front ends block elastic claw 2, its length of blocking elastic claw 2 parts comes downwards to the distance of limit baffle ring 4 less than elastic claw interstage sleeve 3, and limit baffle ring 4 has internal thread to be connected with location box cupling body 5; Location box cupling body 5 and interior pipe upper packer 6 are connected with box cupling; The snapping of change head 7 is arranged between location box cupling 1 and the outer sleeve, become snapping head 7 upper ends and be the conventional criteria connecting thread, employing Ω type is threaded between lower end and the outer sleeve 14; Interior pipe upper packer 6 is connected with pass hole pressure transmission valve body 8 with box cupling, closing outside, hole pressure transmission valve body 8 middle part is a boss, closing hole pressure transmission valve 9 front ends has dowel fixes closing on hole pressure transmission valve body 8 boss, close hole interstage sleeve 10 with the inboard of dowel fixes at pass borehole jack pressure transmission valve body 8 correspondence positions, close hole pressure transmission valve 9 interior lower end one step is arranged, its step end face has cavity with pass hole pressure transmission valve body 8 boss lower ends, close hole pressure transmission valve body 8 and leave the hole, close hole interstage sleeve 10 and should block this hole fixedly the time at the cavity middle part; Closing hole pressure transmission valve body 8 is connected with packer 12 in the interior pipe with box cupling; There is step inner sleeve 16 lower ends, form cavity between its step end face and external surface and outer sleeve 14 inner surfaces, the built-in pass of cavity front end borehole jack 13, close borehole jack 13 with dowel fixes in outer sleeve 14, perforate cover 15 with dowel fixes in outer sleeve 14 inboards, inner sleeve 16 front ends leave pressure transmission hole 14, and outer sleeve 14 leaves intercommunicating pore at the cavity lower end position; Inner sleeve 16 links to each other with outer two public pipe nipples 17 with internal thread; Packer 12 connects plug seat 18 with box cupling in the interior pipe, there is interior step plug seat 18 lower ends, its external surface is positioned at the step medium position boss, perforate pressure transmission valve 19 with dowel fixes on boss, a hole is left in the boss bottom, there is interior step perforate pressure transmission valve 19 lower ends, and step upper surface and plug seat 18 boss lower surfaces, plug seat 18 external surfaces, perforate pressure transmission valve 19 inner surfaces form cavity in it, and plug seat 18 leaves pressure transmission hole at the cavity middle part; Two public pipe nipples 21 in plug seat 18 lower ends connect with box cupling, pipe lower packet 22 in interior two public pipe nipples 21 connect with box cupling, interior pipe lower packet 22 connects reverse ball-and-seat 23 with box cupling, the spool top be hemispherical and with valve body in the hemispherical incline bench suitable; Oppositely ball-and-seat 23 lower ends have internal thread to be connected with interior pipe centralizer 24, interior pipe centralizer 24 is identical with conventional cannula centralizer shape, outer is the helical form wiper block, in pipe centralizer 24 lower ends is connected with wall built-up device 25 with external screw thread, between wall built-up device 25 and the perforate guide shoe 27 below pair public pipe nipples 26 be connected.
Can exempt to bore stage cementing instrument assembly further optimization and/or improvements to above-mentioned a kind of interior tubular type according to actual needs:
When pass borehole jack 13 and perforate cover 15 were fixed in the outer sleeve 14, closing borehole jack 13 length should overlap 15 Bottom Runbies greater than perforate; Perforate is overlapped 15 lower end surfaces to the distance of the inner sleeve 16 lower step end faces length greater than perforate cover 15.
Outer two public pipe nipple 17 is connected with centralizer with box cupling, and centralizer is connected with external packer of pipe with box cupling, and it connects the conventional cannula string down again.
Fixedly the pin diameter of perforate cover 15 should be less than the fixing diameter that closes borehole jack 13.
The utility model operating principle: shown in accompanying drawing 1, successively the stage cementing device assembly is mainly assembled by pass borehole jack 13, outer sleeve 14, perforate cover 15, inner sleeve 16, external packer of pipe 20 from bottom to top, be connected to the sizing collar position of designing in the bunch tube, G.I.H, the pipe string upward is positioned at location box cupling 1 top, 1～2m in the position of elastic claw 2 in making, with under the plug-in type inner tube assembly behind the precalculated position, build the pressure, open elastic claw interstage sleeve 3,2 of elastic claws automatically spring open, pipe string in slowly transferring embeds in the box cupling 1 of location elastic claw 2, finishes the location.Positioning operation finishes, and pressure release also builds the pressure once more, manages separator 12 and interior pipe lower packet 22 in upper packer 6, the interior pipe in the filling, thus two sections annular space spaces of interior pipe of shutoff and outer layer sleeve; Continue to build the pressure, opening perforate pressure transmission valve 19, and fill external packer of pipe 20; Continue to build the pressure, open sizing collar perforate cover 15, carry out cementing job; Cementing job finishes, and the throwing plug pumps into and replaces slurry to send plug, and when plug passed through to close hole pressure transmission valve 9, pass hole pressure transmission valve 9 was opened, and continuation is annotated and replaced slurry to send plug to plug seat 18, and after the bruising, the pass is closed the border borehole jack 13 and finished pass hole operation; Close the hole operation and finish, slowly release, after packer 12, interior pipe lower packet 22 deblockings restored in pipe upper packer 6, the interior pipe in treating, tubing string in proposing was finished construction operation.
After the pipe string extracted in this instrument was extracted out, can change relevant shear pin and reuse.
Claims (3)
1. tubular type exempts to bore stage cementing instrument assembly in one kind, by the plug-in type inner tube assembly, stage cementing device assembly and positioner are formed, the plug-in type inner tube assembly is mainly by interior pipe upper packer (6), close hole pressure transmission valve body (8), close hole pressure transmission valve (9), close hole interstage sleeve (10), packer in the interior pipe (12), plug seat (18), perforate pressure transmission valve (19), interior pipe lower packet (22), reverse ball-and-seat (23), interior pipe centralizer (24), wall scraper (25), perforate guide shoe (27) is formed, the stage cementing device assembly is mainly by closing borehole jack (13), outer sleeve (14), perforate cover (15), inner sleeve (16), external packer of pipe (20) is formed, positioner is mainly by location box cupling (1), elastic claw (2), elastic claw interstage sleeve (3), limit baffle ring (4), location box cupling body (5) is formed, it is characterized in that: it is trapezoidal groove that there is axial cross section box cupling (1) bosom position, location, location box cupling body (5) outer surface of upper has at least three grooves, elastic claw (2) quantity consistent with this groove quantity and its be hidden in the groove, elastic claw interstage sleeve (3) top is thin plate, it is being located box cupling body (1) by dowel fixes, elastic claw interstage sleeve (3) front end blocks elastic claw (2), its length of blocking elastic claw (2) part comes downwards to the distance of limit baffle ring (4) less than elastic claw interstage sleeve (3), and limit baffle ring (4) has internal thread and locatees box cupling body (5) and be connected; Location box cupling body (5) is connected with box cupling with interior pipe upper packer (6); Between location box cupling (1) and the outer sleeve snapping head (7) of change is arranged, become snapping head (7) upper end and be the conventional criteria connecting thread, employing Ω type is threaded between lower end and the outer sleeve (14); Interior pipe upper packer (6) is connected with pass hole pressure transmission valve body (8) with box cupling, closing outside, hole pressure transmission valve body (8) middle part is a boss, closing hole pressure transmission valve (9) front end has dowel fixes closing on hole pressure transmission valve body (8) boss, close hole interstage sleeve (10) with the inboard of dowel fixes at pass borehole jack pressure transmission valve body (8) correspondence position, close hole pressure transmission valve (9) interior lower end one step is arranged, its step end face has cavity with hole pressure transmission valve body (8) boss lower end, pass, close hole pressure transmission valve body (8) and leave the hole, close hole interstage sleeve (10) and should block this hole fixedly the time at the cavity middle part; Closing hole pressure transmission valve body (8) is connected with packer (12) in the interior pipe with box cupling; There is step inner sleeve (16) lower end, form cavity between its step end face and external surface and outer sleeve (14) inner surface, the built-in pass of cavity front end borehole jack (13), close borehole jack (13) with dowel fixes in outer sleeve (14), perforate cover (15) with dowel fixes in outer sleeve (14) inboard, inner sleeve (16) front end leaves pressure transmission hole (14), and outer sleeve (14) leaves intercommunicating pore at the cavity lower end position; Inner sleeve (16) links to each other with outer two public pipe nipples (17) with internal thread; Packer in the interior pipe (12) connects plug seat (18) with box cupling, there is interior step plug seat (18) lower end, its external surface is positioned at the step medium position boss, perforate pressure transmission valve (19) with dowel fixes on boss, a hole is left in the boss bottom, there is interior step perforate pressure transmission valve (19) lower end, and step upper surface and plug seat (18) boss lower surface, plug seat (18) external surface, perforate pressure transmission valve (19) inner surface form cavity in it, and plug seat (18) leaves pressure transmission hole at the cavity middle part; Two public pipe nipples (21) in plug seat (18) lower end connects with box cupling, pipe lower packet (22) in interior two public pipe nipples (21) connect with box cupling, in the pipe lower packet (22) connect reverse ball-and-seat (23) with box cupling, the spool top be hemispherical and with valve body in the hemispherical incline bench suitable; Oppositely ball-and-seat (23) lower end has internal thread to be connected with interior pipe centralizer (24), interior pipe centralizer (24) is identical with conventional cannula centralizer shape, outer is the helical form wiper block, in pipe centralizer (24) lower end is connected with wall built-up device (25) with external screw thread, between wall built-up device (25) and the perforate guide shoe (27) below pair public pipe nipples (26) be connected.
2. according to claim 1 a kind of in tubular type exempt to bore stage cementing instrument assembly, it is characterized in that: close borehole jack (13) and perforate cover (15) and be fixed on outer sleeve (14) when interior, pass borehole jack (13) length should be greater than perforate cover (15) Bottom Runby; Perforate cover (15) lower end surface is to the distance of inner sleeve (16) the lower step end face length greater than perforate cover (15).
3. exempt to bore stage cementing instrument assembly according to claim 1 or the described a kind of interior tubular type of claim 2, it is characterized in that: fixedly the pin diameter of perforate cover (15) should be less than the fixing diameter that closes borehole jack (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201621530U CN201507270U (en) | 2009-06-29 | 2009-06-29 | Inner tube type drilling-free multi-stage cementing tool assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201621530U CN201507270U (en) | 2009-06-29 | 2009-06-29 | Inner tube type drilling-free multi-stage cementing tool assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201507270U true CN201507270U (en) | 2010-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201621530U Expired - Fee Related CN201507270U (en) | 2009-06-29 | 2009-06-29 | Inner tube type drilling-free multi-stage cementing tool assembly |
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| CN (1) | CN201507270U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606107A (en) * | 2011-01-21 | 2012-07-25 | 中国石油化工股份有限公司 | Halfway cementing well completion tube column and halfway cementing method |
| CN105822252A (en) * | 2015-01-04 | 2016-08-03 | 中国石油天然气股份有限公司 | Well cementation pipe column combination and well cementation method |
-
2009
- 2009-06-29 CN CN2009201621530U patent/CN201507270U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606107A (en) * | 2011-01-21 | 2012-07-25 | 中国石油化工股份有限公司 | Halfway cementing well completion tube column and halfway cementing method |
| CN102606107B (en) * | 2011-01-21 | 2015-02-18 | 中国石油化工股份有限公司 | Halfway cementing well completion tube column and halfway cementing method |
| CN105822252A (en) * | 2015-01-04 | 2016-08-03 | 中国石油天然气股份有限公司 | Well cementation pipe column combination and well cementation method |
| CN105822252B (en) * | 2015-01-04 | 2018-09-04 | 中国石油天然气股份有限公司 | Pipe string combination of cementing the well and cementing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20160629 |
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| CF01 | Termination of patent right due to non-payment of annual fee |