CN107542420A - Salvaging type expandable casing patching exempts to bore plug device - Google Patents
Salvaging type expandable casing patching exempts to bore plug device Download PDFInfo
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- CN107542420A CN107542420A CN201610466990.7A CN201610466990A CN107542420A CN 107542420 A CN107542420 A CN 107542420A CN 201610466990 A CN201610466990 A CN 201610466990A CN 107542420 A CN107542420 A CN 107542420A
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- functional
- sliding sleeve
- splined shaft
- starter
- hole
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- 239000007858 starting material Substances 0.000 claims abstract description 29
- 238000010276 construction Methods 0.000 abstract description 7
- 238000011109 contamination Methods 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The present invention exempts to bore plug device for salvaging type expandable casing patching, and package unit outer layer is starter, and starter is built-in with expansion cone and expansion cone support, multi-functional splined shaft, sliding sleeve, key block；Wherein, multi-functional spline shaft through-hole top is provided with spline, is connected with forming spline below expansion cone support；Reducing terraced slope is provided with multi-functional spline shaft through-hole；Multi-functional splined shaft bottom forms spline fitted with sliding sleeve；Sliding sleeve body and starter are provided with rectangular channel, and the key block in rectangular channel is spacing by sliding sleeve and starter；Interlocking connector has through hole, and interlocking connector bottom forms screw thread with multi-functional splined shaft and coordinated.The apparatus structure is simple, and cost is cheap, and function is reliable, play out drill bit after the completion of expansion operation, tripping in salvage pin thread can fast salvaging go out bottom device, the construction available for long length expansion tube, without boring plug and well head power-equipment, efficiency of construction is improved, and avoid pit shaft by cuttings contamination.
Description
Technical field
The present invention relates to a kind of expansion sleeve of underground work in downhole tool field to subsidize instrument, and especially a kind of salvaging type expandable casing patching exempts to bore plug device.
Background technology
Bulged tube technology is typically positioned as being plastically deformed special substance body and screw thread using means mechanically or hydraulically in underground complex condition, being increased internal-and external diameter, to reach a kind of technology of the purpose of petroleum works.Bulged tube technology field application is increasingly extensive, and especially expandable casing patching technology has evolved into a kind of conventional reparation means in casing damaged well, has the advantages that big orifice, the high leakproofness of uniqueness.But at present under technology status expandable casing patching it is latter as blocked up to handle lower bottom by the way of plug using boring, time-consuming, and requires that well head must be equipped with power-equipment, and certain workload is brought to site operation personnel.Swollen integral expandable casing patching instrument is dragged for for such as patent CN102182417A of scene appearance at present, although the instrument can realize a drilling tool expansion and the function that recovery bottom is blocked up, but there is design defect in the instrument, that is the length of bottom pull bar is greater than the length of expansion tube, the structure is unfavorable for the connection tripping in of pull bar instrument, can not carry out longer section of expandable casing patching construction.
The content of the invention
The defects of can not carrying out growing section expandable casing patching in the prior art it is an object of the invention to overcome, there is provided a kind of salvaging type expandable casing patching exempts to bore plug device, and the recovery for realizing bottom device is bored using two times, can realize that long length expands pipe construction.
The technical scheme is that：
A kind of salvaging type expandable casing patching exempts to bore plug device, including starter 1 and expansion cone 3 built in starter 1 and expansion cone support 2, includes multi-functional splined shaft 4, sliding sleeve 5, key block 6；Wherein, expansion cone 3, expansion cone support 2 and multi-functional splined shaft 4 are equipped with through hole, and the multi-functional through hole top of splined shaft 4 is provided with spline 41, and forming spline with the lower section of expansion cone support 2 is connected；Reducing terraced slope 45 is provided with the multi-functional through hole of splined shaft 4；It is through hole among sliding sleeve 5, the multi-functional bottom of splined shaft 2 forms spline fitted through sliding sleeve 5 and with sliding sleeve 5；The body of sliding sleeve 5 radially offers rectangular channel 52；Starter 1 is also offering rectangular channel with the corresponding position of rectangular channel 52, and rectangular channel includes key block 6, and key block 6 is spacing by sliding sleeve 5 and starter 1, and key block top is provided with slope 61；Also include interlocking connector 8, interlocking connector 8 has through hole, and the bottom of interlocking connector 8 forms screw thread with multi-functional splined shaft 4 and coordinated.
Such scheme further comprises：
The bottom of multi-functional splined shaft 4 is also associated with guide shoe 7, and guide shoe 7 is through-hole structure, and the bottom of guide shoe 7 is hemisphere, and four rib structures 72 are uniformly processed on hemisphere.
The body of sliding sleeve 5 and starter 1 are provided with three rectangular channels 52 being uniformly distributed along the circumference, and rectangular channel 52 is configured with three key blocks 6.
Multi-functional splined shaft 2 forms spline fitted with the spline 51 that sliding sleeve 5 is the splined shaft 43 and through hole first half of sliding sleeve 5 being provided with by the multi-functional bottom of splined shaft 2.
The upper/lower terminal 53,54 of sliding sleeve 5 is respectively ramp structure；Seal groove 42 is provided with multi-functional splined shaft 2 and the faying face of starter 1.
The present invention expansion cone in hydraulic coupling or machinery in the presence of moved upwards since starter, it is plastically deformed expansion tube body, after the expansion tube in pit shaft is completely expanded, above carry drilling tool and act expansion cone, then proceed to tripping in second and plow drilling tool, bottom is connected with interlocking connector, under at the top of multi-functional splined shaft in starter, rotary tools, by interlocking connector and the box thread make-up of multi-functional splined shaft endoporus, then drilling tool is above carried, the whole series are salvaged to exempt to bore plug device, prepare power-equipment without well head and tripping in milling tool drills bottom and blocked up, improve efficiency of construction, reduce operating cost.
Brief description of the drawings
Fig. 1 is that salvaging type expandable casing patching of the present invention exempts to bore the structural representation before plug device expansion.
Fig. 2 is that salvaging type expandable casing patching of the present invention exempts to bore the structural representation that plug device salvages process.
Fig. 3 is the cross section structure diagram of the multi-functional splined shaft of the present invention.
Fig. 4 is the dimensional structure diagram of the multi-functional splined shaft of the present invention.
Fig. 5 is the cross section structure diagram of sliding sleeve of the present invention.
Fig. 6 is the dimensional structure diagram of sliding sleeve of the present invention.
Fig. 7 is the cross section structure diagram of key block of the present invention.
Fig. 8 is the dimensional structure diagram of key block of the present invention.
Fig. 9 is the cross section structure diagram of guide shoe of the present invention.
Figure 10 is the dimensional structure diagram of guide shoe of the present invention.
In figure：1st, starter, 2, expansion cone support, 3, expansion cone, 4, multi-functional splined shaft, 5th, sliding sleeve, 6, key block, 7, guide shoe, 8, interlocking connector, 41st, spline, 42, seal groove, 43, splined shaft, 44, one section of cylindrical type, 45th, slope, 46, two sections of cylindrical type, 47, male thread, 51, sliding sleeve spline, 52nd, rectangular channel, 53, sliding sleeve lower end, 54, sliding sleeve upper end, 61, inclined-plane, 62nd, bottom arc structure, 71, box thread, 72, bar rib structure, 81, counterpart joint male thread.
Embodiment
In order to which the technical characteristic to the present invention, purpose effect are more clearly explained, the embodiment that the present invention is expanded on further in Figure of description is now compareed.
Referring to the drawings 1, to exempt to bore plug device the invention provides a kind of salvaging type expandable casing patching, the device includes starter 1, multi-functional splined shaft 4, sliding sleeve 5, key block 6, guide shoe 7.Before expansion, package unit outer layer is starter 1, and the top of starter 1 is built-in with expansion cone 3, and the inclined-plane of expansion cone 3 is fitted close with the inner chamfer of starter 1, and 1 middle upper position of starter has three rectangular channels being uniformly distributed along the circumference（Or 4, depending on the expansion pipe size of concrete application）；Endoporus is machined among expansion cone 3, endoporus is connected with expansion cone support 2, and bottom tail end is machined with multi-functional splined shaft 4, and centre is through hole.Referring to the drawings 3 and 4, the multi-functional outer surface upper end of splined shaft 4 is cylindrical structural, cylindrical structural top is an inclined-plane, cylindrical structural bottom is machined with seal groove 42, the lower section of seal groove 42 is machined with splined shaft 43, the multi-functional bottom of splined shaft 4 is one section 44 of a thinner cylindrical type, then lower section is two section 46 thinner of a cylindrical type, and bottom is male thread 47.It is through hole among multi-functional splined shaft 4, through hole is topmost spline 41, and the lower section of spline 41 is box thread；Box thread is an elongated reducing venturi downwards, has inclined-plane 45 at one among venturi.43 sections of the splined shaft of the multi-functional outer surface of splined shaft 4 is arranged with a sliding sleeve 5, and the upper and lower side of sliding sleeve 5 has ramp structure referring to the drawings 5 and 6, and the body of sliding sleeve 5 has three rectangular channels being uniformly distributed along the circumference 52, is through hole among sliding sleeve, the through hole first half is spline 51.1 three rectangular channels of three rectangular channels 52 and starter of sliding sleeve 5 overlap, and include three key blocks 6.Referring to the drawings 7 and 8, key block top is provided with inclined-plane 61, and bottom is arc structure.Referring to the drawings 9 and 10, the multi-functional bottom of splined shaft 4 is connected with guide shoe 7, and guide shoe 7 is through-hole structure, and through hole upper end is a box thread 71, and the bottom of guide shoe 7 is hemisphere structure, and four rib structures 72 are uniformly processed on hemisphere.
Referring to the drawings 1, salvaging type expandable casing patching of the invention exempts to bore plug device when it is implemented, will be under tubing string to rear connection well head high pressure pumping unit in well.Circulation well cleanup is carried out by accompanying tubing string and the through hole for exempting from boring device first, removes and is sent into plug or metal ball in pit shaft after debris, plug or metal ball outside dimension are less than the minimum diameter at multi-functional splined shaft inner chamber slope 45.Sealing function is formed with slope 45 after plug or metal ball reach slope 45, the sealing ring of the multi-functional outer surface seal groove 42 of splined shaft 4 seals its pressure between starter 1, now forms sealing space between expansion cone 3 and seal groove 42.Pass through the further rise of pressure, after the required pressure for reaching expansion tube swelling, the holding of well head lifting means is accompanied tubing string original suspending weight and at the uniform velocity above carried, up distending expansion tube body under the action of hydraulic force of expansion cone 3, spline in expansion cone support 2 at the multi-functional through hole upper end spline 41 of splined shaft 4 depart from it is up, until whole expansion body is completed in expansion.
The salvaging type expandable casing patching of the present invention exempts to bore plug device after completing to expand operation, upper proposition expansion cone 3, then tripping in interlocking connector 8, after exempting to bore multi-functional splined shaft 4 in plug device to the contact of the position of starter 1 under interlocking connector 8, rotate tubing string, the male thread 81 of the lower end of interlocking connector 8 is set to be connected with the box thread of the multi-functional inner chamber of splined shaft 4, above carry drilling tool, multi-functional splined shaft 4 is run up with respect to sliding sleeve 5 and key block 6, that is relative slide occurs for the bottom arc structure 62 of one section 44 of splined shaft lower cylindrical type and sliding sleeve 5 and key block 6, now guide shoe 7 is in the motion upwards synchronous with the presence of box thread 71 of male thread 47.When cylindrical type passes fully through sliding sleeve 5 and key block 6 for one section 44, two section 46 of the horizontal post for corresponding to multi-functional splined shaft 4 circle of key block 6.Continue above to carry drilling tool, expansion tube, which has expanded, to be finished, and the position of starter 1 will not change, and edge can produce obliquely perpendicular to the stress on inclined-plane 61 inclined-plane 61 in key block 6 on three rectangular channels.Under the stress, 3 key blocks are fallen between two section 46 of sliding sleeve 5 and cylindrical type in caused cavity, due to the limitation of size, in the rectangular channel 52 in the still embedded sliding sleeve 5 of key block 6.During above drilling tool is carried afterwards, the ramp structure that the upper and lower side of sliding sleeve 5 has can reduce the resistance for the process of carrying, and apparatus above will be suggested well head with this state, complete expandable casing patching and exempt to bore the salvaging of plug device.
In the operation process that salvaging type expandable casing patching of the present invention exempts from brill plug device, two sets of drilling tools of tripping in are needed to carry out altogether：（1）Referring to the drawings 1, first drilling tool completes the subsidy operation of expansion tube, proposes expansion cone 3 and above mechanism；（2）Referring to the drawings 2, tripping in interlocking connector 8, complete the connection of the multi-functional inner chamber box thread of splined shaft 4 and interlocking connector male thread, now lock-out state of the key block in sliding sleeve 5 and the rectangular channel of starter 1, above carry drilling tool, key block is set to be between two section 46 of sliding sleeve 5 and cylindrical type in caused cavity, now key block no longer plays a whole set of position-limiting action for exempting to bore plug device, has continued interior tubing string.Which is constructed available for big section expandable casing patching, not by tripping in expansion tube length limitation, is provided well power-equipment without operator, is improved efficiency of construction, saved construction cost.
The schematical embodiment of the present invention is the foregoing is only, it is non-to be used to limit the scope of the present invention.Any those skilled in the art, made equivalent variations and modification, all should belong to the scope of protection of the invention on the premise of the design of the present invention and principle is not departed from.
Claims (5)
1. a kind of salvaging type expandable casing patching exempts to bore plug device, including starter（1）And starter（1）Built-in expansion cone（3）With expansion cone support（2）, it is characterised in that：Also include multi-functional splined shaft（4）, sliding sleeve（5）, key block（6）；Wherein, expansion cone（3）, expansion cone support（2）With multi-functional splined shaft（4）It is equipped with through hole, multi-functional splined shaft（4）Through hole top is provided with spline（41）, with expansion cone support（2）Lower section forms spline connection；Multi-functional splined shaft（4）Reducing terraced slope is provided with through hole（45）；Sliding sleeve（5）Centre is through hole, multi-functional splined shaft（2）Bottom passes through sliding sleeve（5）And and sliding sleeve（5）Form spline fitted；Sliding sleeve（5）Body radially offers rectangular channel（52）；Starter（1）And rectangular channel（52）Corresponding position also offers rectangular channel, and rectangular channel includes key block（6）, key block（6）By sliding sleeve（5）And starter（1）Spacing, key block top is provided with slope（61）；Also include interlocking connector（8）, interlocking connector（8）There are through hole, interlocking connector（8）Bottom and multi-functional splined shaft（4）Screw thread is formed to coordinate.
2. salvaging type expandable casing patching as claimed in claim 1 exempts to bore plug device, it is characterised in that：The multi-functional splined shaft（4）Bottom is also associated with guide shoe（7）, guide shoe（7）For through-hole structure, guide shoe（7）Bottom is hemisphere, and four rib structures are uniformly processed on hemisphere（72）.
3. salvaging type expandable casing patching as claimed in claim 1 or 2 exempts to bore plug device, it is characterised in that：The sliding sleeve（5）Body and starter（1）Provided with three rectangular channels being uniformly distributed along the circumference（52）, rectangular channel（52）It is configured with three key blocks（6）.
4. salvaging type expandable casing patching as claimed in claim 3 exempts to bore plug device, it is characterised in that：Multi-functional splined shaft（2）With sliding sleeve（5）It is by multi-functional splined shaft（2）The splined shaft that bottom is provided with（43）And sliding sleeve（5）The spline of the through hole first half（51）Form spline fitted.
5. salvaging type expandable casing patching as claimed in claim 1 exempts to bore plug device, it is characterised in that：The upper/lower terminal of sliding sleeve 5（53）、（54）Respectively ramp structure；In multi-functional splined shaft（2）With starter（1）Faying face is provided with seal groove（42）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610466990.7A CN107542420B (en) | 2016-06-24 | 2016-06-24 | Salvaging type expansion pipe patch drilling-free plug device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610466990.7A CN107542420B (en) | 2016-06-24 | 2016-06-24 | Salvaging type expansion pipe patch drilling-free plug device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107542420A true CN107542420A (en) | 2018-01-05 |
| CN107542420B CN107542420B (en) | 2024-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610466990.7A Active CN107542420B (en) | 2016-06-24 | 2016-06-24 | Salvaging type expansion pipe patch drilling-free plug device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107542420B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681142A (en) * | 2018-12-13 | 2019-04-26 | 大港油田集团有限责任公司 | A kind of naked eye expansion device and application method |
| CN109869108A (en) * | 2018-10-22 | 2019-06-11 | 中国石油集团渤海钻探工程有限公司 | A kind of broken well expandable casing patching device and its subsidy method |
| CN114776245A (en) * | 2022-05-16 | 2022-07-22 | 大庆长垣能源科技有限公司 | Drilling plug-free salvageable well completion process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB522824A (en) * | 1938-12-19 | 1940-06-27 | James Cuthill | Improvements in and relating to means for withdrawing casing from wells or bore holes |
| GB888752A (en) * | 1959-07-21 | 1962-02-07 | Joy Mfg Co | Improvements in well tools |
| WO2004094766A2 (en) * | 2003-04-17 | 2004-11-04 | Enventure Global Technology | Apparatus for radially expanding and plastically deforming a tubular member |
| CN104481443A (en) * | 2014-12-08 | 2015-04-01 | 北京盛隆源科技开发有限公司 | Fishable lower seal head device of expansion pipe |
| CN205876250U (en) * | 2016-06-24 | 2017-01-11 | 中石化石油工程技术服务有限公司 | Stopper device is exempted from to bore in subsidy of salvage formula expansion pipe |
-
2016
- 2016-06-24 CN CN201610466990.7A patent/CN107542420B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB522824A (en) * | 1938-12-19 | 1940-06-27 | James Cuthill | Improvements in and relating to means for withdrawing casing from wells or bore holes |
| GB888752A (en) * | 1959-07-21 | 1962-02-07 | Joy Mfg Co | Improvements in well tools |
| WO2004094766A2 (en) * | 2003-04-17 | 2004-11-04 | Enventure Global Technology | Apparatus for radially expanding and plastically deforming a tubular member |
| CN104481443A (en) * | 2014-12-08 | 2015-04-01 | 北京盛隆源科技开发有限公司 | Fishable lower seal head device of expansion pipe |
| CN205876250U (en) * | 2016-06-24 | 2017-01-11 | 中石化石油工程技术服务有限公司 | Stopper device is exempted from to bore in subsidy of salvage formula expansion pipe |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869108A (en) * | 2018-10-22 | 2019-06-11 | 中国石油集团渤海钻探工程有限公司 | A kind of broken well expandable casing patching device and its subsidy method |
| CN109681142A (en) * | 2018-12-13 | 2019-04-26 | 大港油田集团有限责任公司 | A kind of naked eye expansion device and application method |
| CN114776245A (en) * | 2022-05-16 | 2022-07-22 | 大庆长垣能源科技有限公司 | Drilling plug-free salvageable well completion process |
| CN114776245B (en) * | 2022-05-16 | 2023-03-24 | 大庆长垣能源科技有限公司 | Drilling plug-free salvageable well completion process |
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| Publication number | Publication date |
|---|---|
| CN107542420B (en) | 2024-06-28 |
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