CN104747099A - Screw drill locking and unlocking device - Google Patents
Screw drill locking and unlocking device Download PDFInfo
- Publication number
- CN104747099A CN104747099A CN201510130996.2A CN201510130996A CN104747099A CN 104747099 A CN104747099 A CN 104747099A CN 201510130996 A CN201510130996 A CN 201510130996A CN 104747099 A CN104747099 A CN 104747099A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- hydraulic motor
- screw rod
- helicoid hydraulic
- tripper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 6
- 238000005553 drilling Methods 0.000 abstract description 18
- 239000012530 fluid Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
- E21B7/068—Deflecting the direction of boreholes drilled by a down-hole drilling motor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/02—Fluid rotary type drives
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a screw drill locking and unlocking device. The device comprises a screw shell and a customized screw arranged in the screw shell. The upper portion of the screw shell is connected with an anti-drop cylinder. The upper portion of the anti-drop cylinder is connected with an upper connector. A middle core tube is arranged in the upper connector and the anti-drop cylinder. The upper portion of the middle core tube is connected with the interior of the upper connector through an upper spline pair. The middle of the middle core tube is provided with a check clamping spring. The middle of the middle core tube is fixed to the upper connector through a shear pin. The upper connector is provided with a check step. The middle of the upper connector is provided with a communication hole. The lower portion of the middle core tube is connected with the customized screw through a lower spline pair. The middle core tube is provided with a flow guide hole. The maximum distance of the check clamping spring and the check step which are in the separated state is larger than the length of the lower spline pair. The screw drill locking and unlocking device is simple in structure, safe and reliable and solves the problem that a screw drill is rotated due to open pump cycle when a whipstock is oriented, the locking mechanism is unlocked after the whipstock is anchored, the screw drill rotates to conduct window sidetrack drilling, and the branching well drilling efficiency is improved greatly.
Description
Technical field
The invention belongs to oil Multilateral Wells directional technology field, be specifically related to the locking of a kind of helicoid hydraulic motor and tripper.
Background technology
In branch hole drilling process, window sidetracking is key one ring of operation, and a brill window sidetracking can shorten drilling period, reduces drilling cost.In the process, whipstock is connected to helicoid hydraulic motor bottom, the complete grappling of whipstock is the prerequisite of window sidetracking, only have after the complete grappling of whipstock, helicoid hydraulic motor could rotate and depart from whipstock, and carries out window sidetracking, therefore, before the complete grappling of whipstock, preventing helicoid hydraulic motor from rotating becomes whole key point of boring window sidetracking success or failure for a time.
Summary of the invention
The object of the invention is to overcome the problem that in prior art, whipstock complete grappling front screw drilling tool rotates in advance.
For this reason, the invention provides the locking of a kind of helicoid hydraulic motor and tripper, comprise screw rod housing and the customization screw rod being arranged on screw rod enclosure interior, described screw rod housing upper is threaded anti-lost cylinder, the top of anti-lost cylinder is threaded top connection, described top connection and anti-lost cylinder inside are provided with SMIS cylinder, described SMIS cylinder top is connected by upper spline pair with top connection inside, retaining jump ring is provided with in the middle part of SMIS cylinder, fixed by shear pin with top connection in the middle part of described SMIS cylinder, top connection below described retaining jump ring is provided with the retaining step engaged with retaining jump ring, intercommunicating pore is provided with in the middle part of described top connection, described SMIS cylinder bottom is connected by lower spline pair with customization screw rod top, SMIS cylinder above described lower spline pair arranges pod apertures, described retaining jump ring and retaining step disengaged condition ultimate range are greater than the length of lower spline pair.
Sealing ring one is provided with between above-mentioned SMIS cylinder top and top connection.
Sealing ring two is provided with between above-mentioned SMIS cylinder bottom and top connection.
Above-mentioned SMIS cylinder top seal sectional area is greater than SMIS cylinder lower seal sectional area.
Above-mentioned customization screw rod outer surface of upper has been threaded anti-lost cap.
Above-mentioned anti-lost cap outer setting has spline shape notch one.
Above-mentioned anti-lost cylinder inside is provided with spline shape notch two.
Above-mentioned spline shape notch one internal diameter is greater than the external diameter of spline shape notch two.
Rubber bushing is provided with between above-mentioned screw rod enclosure interior and customization screw rod.
Beneficial effect of the present invention:
(1) when this helicoid hydraulic motor locking provided by the invention solves whipstock orientation with tripper, turn on pump circulates the problem causing helicoid hydraulic motor to rotate, effectively preventing SMIS cylinder axial float and helicoid hydraulic motor circumference from rotating, ensureing that drilling fluid can smoothly by completing the setting of whipstock.
(2) this helicoid hydraulic motor locking provided by the invention and tripper are after whipstock grappling completes, retaining mechanism unlocks, SMIS cylinder departs from the lower spline pair of customization screw rod, ensure that the complete setting rear helicoid hydraulic motor of whipstock normal rotation can carry out window sidetracking.
(3) this helicoid hydraulic motor locking provided by the invention is simple with tripper structure, convenient and practical, safe and reliable, is applicable to one time and bores the directed grappling, the window sidetracking that realize whipstock, substantially increase branch hole drilling efficiency.
Below with reference to accompanying drawing, the present invention is described in further details.
Accompanying drawing explanation
Fig. 1 is the structural representation of helicoid hydraulic motor of the present invention locking and tripper.
Description of reference numerals: 1, top connection; 2, SMIS cylinder; 3, sealing ring one; 4, shear pin; 5, retaining jump ring; 6, sealing ring two; 7, anti-lost cylinder; 8, screw rod is customized; 9, anti-lost cap; 10, rubber bushing; 11, screw rod housing; 12, upper spline is secondary; 13, intercommunicating pore; 14, retaining step; 15, pod apertures; 16, lower spline pair; 17, spline shape notch one; 18, spline shape notch two.
Detailed description of the invention
Embodiment 1:
In order to overcome the problem that the complete grappling front screw of whipstock in prior art drilling tool rotates in advance, present embodiments provide a kind of helicoid hydraulic motor as shown in Figure 1 to lock and tripper, comprise screw rod housing 11 and the customization screw rod 8 being arranged on screw rod housing 11 inside, described screw rod housing 11 top is threaded anti-lost cylinder 7, the top of anti-lost cylinder 7 is threaded top connection 1, described top connection 1 is provided with SMIS cylinder 2 with anti-lost cylinder 7 inside, described SMIS cylinder 2 top is connected by upper spline secondary 12 with top connection 1 inside, retaining jump ring 5 is provided with in the middle part of SMIS cylinder 2, fixed by shear pin 4 with top connection 1 in the middle part of described SMIS cylinder 2, top connection 1 below described retaining jump ring 5 is provided with the retaining step 14 engaged with retaining jump ring 5, intercommunicating pore 13 is provided with in the middle part of described top connection 1, described SMIS cylinder 2 bottom is connected by lower spline pair 16 with customization screw rod 8 top, SMIS cylinder 2 above described lower spline pair 16 arranges pod apertures 15, described retaining jump ring 5 and retaining step 14 disengaged condition ultimate range are greater than the length of lower spline pair 16.
In branch hole drilling process, this helicoid hydraulic motor locking provided by the invention is connected to whipstock top with tripper, drilling fluid enters helicoid hydraulic motor by aperture pod apertures 15 in SMIS cylinder 2, be passed to whipstock, after pressure is raised to the setting pressure of whipstock, whipstock completes setting, now, lower spline pair 16 between customization screw rod 8 and SMIS cylinder 2 and the upper spline pair 12 between SMIS cylinder 2 and top connection 1 are all in engagement, and helicoid hydraulic motor can not rotate, and is in locking state.
Along with drilling fluid continue add, in device, pressure continues to raise, when pressure rise to shear pin 4 cut off pressure time, under the effect of the pressure, shear pin 4 is cut off, SMIS cylinder 2 is descending under the effect of the pressure, until the retaining jump ring 5 of SMIS cylinder 2 is in engagement with the retaining step 14 of top connection 1, meanwhile, customization screw rod 8 is in disengaged condition with the lower spline pair 16 of SMIS cylinder 2, and helicoid hydraulic motor is in released state, and helicoid hydraulic motor rotates under the driving of drilling fluid, and discharge helicoid hydraulic motor and whipstock fixed connection point, and then realize window sidetracking function.
This helicoid hydraulic motor locking provided by the invention and tripper efficiently solve whipstock directed time turn on pump to circulate the problem causing helicoid hydraulic motor to rotate, prevent SMIS cylinder axial float and helicoid hydraulic motor circumference from rotating, ensure that drilling fluid can smoothly by completing the setting of whipstock, simultaneously after whipstock grappling completes, retaining mechanism unlocks, SMIS cylinder departs from the lower spline pair of customization screw rod, ensure that the complete setting rear helicoid hydraulic motor of whipstock normal rotation can carry out window sidetracking.
Embodiment 2:
Present embodiments provide the locking of a kind of helicoid hydraulic motor and tripper, comprise screw rod housing 11 and the customization screw rod 8 being arranged on screw rod housing 11 inside, described screw rod housing 11 top is threaded anti-lost cylinder 7, the top of anti-lost cylinder 7 is threaded top connection 1, described top connection 1 is provided with SMIS cylinder 2 with anti-lost cylinder 7 inside, described SMIS cylinder 2 top is connected by upper spline secondary 12 with top connection 1 inside, retaining jump ring 5 is provided with in the middle part of SMIS cylinder 2, fixed by shear pin 4 with top connection 1 in the middle part of described SMIS cylinder 2, top connection 1 below described retaining jump ring 5 is provided with the retaining step 14 engaged with retaining jump ring 5, intercommunicating pore 13 is provided with in the middle part of described top connection 1, sealing ring 1 is provided with between described SMIS cylinder 2 top and top connection 1, sealing ring 26 is provided with between described SMIS cylinder 2 bottom and top connection 1, described SMIS cylinder 2 top seal sectional area is greater than SMIS cylinder 2 lower seal sectional area, described SMIS cylinder 2 bottom is connected by lower spline pair 16 with customization screw rod 8 top, SMIS cylinder 2 above described lower spline pair 16 arranges pod apertures 15, described retaining jump ring 5 and retaining step 14 disengaged condition ultimate range are greater than the length of lower spline pair 16.
In the present invention, the pressure of cutting off of shear pin 4 is arranged higher than the setting pressure of whipstock, and prevent SMIS cylinder 2 axial float, structure is simple, safe and reliable.Between SMIS cylinder 2 with top connection 1, SMIS cylinder 2 all adopts spline pair to be connected with customization screw rod 8, prevents the circumferential rotation of helicoid hydraulic motor.SMIS cylinder 2 bottom is provided with pod apertures 15, makes drilling fluid can smoothly by completing the setting of whipstock.Sealing ring 1 and sealing ring 26 is provided with between SMIS cylinder 2 and top connection 1, top connection 1 is provided with intercommunicating pore 13, after whipstock is setting, SMIS cylinder 2 can be descending accurately under the ordering about of pressure, SMIS cylinder 2 is departed from the lower spline pair 16 of customization screw rod 8, ensure that the complete setting rear helicoid hydraulic motor of whipstock can normally work.And top connection 1 is provided with retaining step 14, after SMIS cylinder 2 is descending, retaining jump ring 5 engages with retaining step 14, after preventing SMIS cylinder 2 descending again on alter, the rotation of impact customization screw rod 8, thus ensure that the normal rotation of helicoid hydraulic motor.
In addition, in order to prevent customization screw rod from departing from helicoid hydraulic motor, described customization screw rod 8 outer surface of upper has been threaded anti-lost cap 9.Described anti-lost cap 9 outer setting has spline shape notch 1, described anti-lost cylinder 7 inside is provided with spline shape notch 2 18, described spline shape notch 1 internal diameter is greater than the external diameter of spline shape notch 2 18, this structure had both increased the area of passage of drilling fluid, ensure passing through smoothly of drilling fluid, prevent again spline shape notch 1 and spline shape notch 2 18 from interfering, affect the normal work of helicoid hydraulic motor.
In sum, this helicoid hydraulic motor locking provided by the invention is simple with tripper structure, convenient and practical, safe and reliable, solve and bore for one time in window sidetracking process, when whipstock is directed, turn on pump circulates the problem causing helicoid hydraulic motor to rotate, after whipstock grappling completes, retaining mechanism unlocks, helicoid hydraulic motor rotates and carries out window sidetracking, is applicable to one time and bores the directed grappling, the window sidetracking that realize whipstock, substantially increase branch hole drilling efficiency.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (9)
1. a helicoid hydraulic motor locking and tripper, comprise screw rod housing (11) and be arranged on the inner customization screw rod (8) of screw rod housing (11), it is characterized in that: described screw rod housing (11) top is threaded anti-lost cylinder (7), the top of anti-lost cylinder (7) is threaded top connection (1), described top connection (1) and anti-lost cylinder (7) inside are provided with SMIS cylinder (2), described SMIS cylinder (2) top is connected by upper spline pair (12) with top connection (1) inside, SMIS cylinder (2) middle part is provided with retaining jump ring (5), described SMIS cylinder (2) middle part is fixed by shear pin (4) with top connection (1), the top connection (1) of described retaining jump ring (5) below is provided with the retaining step (14) engaged with retaining jump ring (5), described top connection (1) middle part is provided with intercommunicating pore (13), described SMIS cylinder (2) bottom is connected by lower spline pair (16) with customization screw rod (8) top, the SMIS cylinder (2) of described lower spline pair (16) top arranges pod apertures (15), described retaining jump ring (5) and retaining step (14) disengaged condition ultimate range are greater than the length of lower spline pair (16).
2. helicoid hydraulic motor locking as claimed in claim 1 and tripper, is characterized in that: be provided with sealing ring one (3) between described SMIS cylinder (2) top and top connection (1).
3. helicoid hydraulic motor locking as claimed in claim 1 and tripper, is characterized in that: be provided with sealing ring two (6) between described SMIS cylinder (2) bottom and top connection (1).
4. helicoid hydraulic motor locking as claimed in claim 1 and tripper, is characterized in that: described SMIS cylinder (2) top seal sectional area is greater than SMIS cylinder (2) lower seal sectional area.
5. helicoid hydraulic motor locking as claimed in claim 1 and tripper, is characterized in that: described customization screw rod (8) outer surface of upper has been threaded anti-lost cap (9).
6. helicoid hydraulic motor locking as claimed in claim 5 and tripper, is characterized in that: described anti-lost cap (9) outer setting has spline shape notch one (17).
7. helicoid hydraulic motor locking as claimed in claim 1 and tripper, is characterized in that: described anti-lost cylinder (7) inside is provided with spline shape notch two (18).
8. as claimed in claims 6 or 7 helicoid hydraulic motor locking and tripper, it is characterized in that: described spline shape notch one (17) internal diameter is greater than the external diameter of spline shape notch two (18).
9. helicoid hydraulic motor locking as claimed in claim 1 and tripper, is characterized in that: be provided with rubber bushing (10) between described screw rod housing (11) inside and customization screw rod (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510130996.2A CN104747099B (en) | 2015-03-25 | 2015-03-25 | Screw drill locking and unlocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510130996.2A CN104747099B (en) | 2015-03-25 | 2015-03-25 | Screw drill locking and unlocking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104747099A true CN104747099A (en) | 2015-07-01 |
| CN104747099B CN104747099B (en) | 2017-01-11 |
Family
ID=53587278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510130996.2A Expired - Fee Related CN104747099B (en) | 2015-03-25 | 2015-03-25 | Screw drill locking and unlocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104747099B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2307915C1 (en) * | 2006-09-01 | 2007-10-10 | Общество с ограниченной ответственностью "ИНКОС" | Method for directional side window cutting in well casing pipe in single drilling tool pass with the use of screw downhole motor and screw downhole motor output shaft stopping device for above method realization |
| CN101560875A (en) * | 2009-05-18 | 2009-10-21 | 中国石油辽河油田钻采工艺研究院 | Multifunctional horizontal well completion tubular pile device |
| CN101871332A (en) * | 2010-07-02 | 2010-10-27 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Multi-way releasing device |
| CN202913998U (en) * | 2012-10-31 | 2013-05-01 | 中国石油集团川庆钻探工程有限公司 | Mechanical-hydraulic double-acting releasing mechanism |
| CN103277049A (en) * | 2013-05-31 | 2013-09-04 | 中国石油集团川庆钻探工程有限公司 | Slip type whipstock |
| CN204571879U (en) * | 2015-03-25 | 2015-08-19 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of helicoid hydraulic motor locking and tripper |
-
2015
- 2015-03-25 CN CN201510130996.2A patent/CN104747099B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2307915C1 (en) * | 2006-09-01 | 2007-10-10 | Общество с ограниченной ответственностью "ИНКОС" | Method for directional side window cutting in well casing pipe in single drilling tool pass with the use of screw downhole motor and screw downhole motor output shaft stopping device for above method realization |
| CN101560875A (en) * | 2009-05-18 | 2009-10-21 | 中国石油辽河油田钻采工艺研究院 | Multifunctional horizontal well completion tubular pile device |
| CN101871332A (en) * | 2010-07-02 | 2010-10-27 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Multi-way releasing device |
| CN202913998U (en) * | 2012-10-31 | 2013-05-01 | 中国石油集团川庆钻探工程有限公司 | Mechanical-hydraulic double-acting releasing mechanism |
| CN103277049A (en) * | 2013-05-31 | 2013-09-04 | 中国石油集团川庆钻探工程有限公司 | Slip type whipstock |
| CN204571879U (en) * | 2015-03-25 | 2015-08-19 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of helicoid hydraulic motor locking and tripper |
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| Publication number | Publication date |
|---|---|
| CN104747099B (en) | 2017-01-11 |
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| C10 | Entry into substantive examination | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20200325 |
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| CF01 | Termination of patent right due to non-payment of annual fee |