CN203347681U - Cam type high-frequency percussion drilling tool - Google Patents
Cam type high-frequency percussion drilling tool Download PDFInfo
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- CN203347681U CN203347681U CN 201320365898 CN201320365898U CN203347681U CN 203347681 U CN203347681 U CN 203347681U CN 201320365898 CN201320365898 CN 201320365898 CN 201320365898 U CN201320365898 U CN 201320365898U CN 203347681 U CN203347681 U CN 203347681U
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Abstract
The utility model relates to a cam type high-frequency percussion drilling tool which is characterized in that a screw rod assembly composed of a sealing barrel, a mandrel and a lower connector and an axial vibration assembly composed of an upper cam, a lower cam, a disc spring arranged on the outer portion of the mandrel in a sleeved mode, a hanging nut and a thrust bearing are included, the hanging nut is in threaded connection with the lower connector, an upper sealing cover is arranged between the sealing barrel and the mandrel, a floating piston is arranged between the sealing barrel and the lower connector in a sleeved mode, and the floating piston, the upper sealing cover, the mandrel, a first sealing ring and the sealing barrel form a sealed cavity which can be filled with hydraulic oil. The cam type high-frequency percussion drilling tool has the advantages that when the tool is used for drilling, high-frequency even stable mechanical shock energy is formed so that a drilling bit and a well bottom can maintain continuous high-frequency cutting all the time, cutting efficiency is improved, one or more kinds of harmful vibration and stick slip phenomena which may happen when the drilling bit moves are removed, axial jumping, horizontal vortex motion and stick slip phenomena during a drilling process can be removed, drilling mechanical rotating speed can be improved, and the service life of the drilling tool is prolonged.
Description
Technical field
The utility model belongs to oil gas and bores the completion technique field, particularly relates to a kind of cam-type high-frequency percussion drilling tool.
Background technology
At present when the conventional drilling operation, generally adopt single rotary drilling technology, the motion of PDC drill bit is extremely unordered, comprise laterally, vertically and turn round to vibration and the combination of these several vibrations, and underground vibrating can damage single PDC cutting teeth, has so not only shortened the application life of drill bit, affect the safety of drilling tool, but also can cause the drilling machinery drilling speed low, and drilling depth is slow, and drilling tool produces stress fatigue etc. in advance.In addition, also can cause that torque ripple disturbs directed control and well logging during (LWD) signal, and produce irregular borehole reduction wellbore quality.Therefore traditional rotary drilling technology can't meet the drilling well timeliness requirement on the poor stratum of drillabilitys such as the staggered stratum of soft or hard, hard formation in deep formation.The drilling technology that spins is on the basis of conventional rotary drilling, by the boring method impacted and rotation combines.Its principle is that an impactor is installed in the drill bit upper end, form mechanical shock energy high frequency, uniform and stable in drilling process, make drill bit and shaft bottom can remain continuous high frequency cutting, improve shear efficiency, one or more nuisance vibrations and the stick-slip phenomenon that may occur while eliminating drill bit movement.The drilling technology that spins is compared with other drilling technology, better utilized solid rock fragility large, and shear strength is lower, not impact-resistant weakness, and only need apply less the pressure of the drill and carry out the pressure holding drill bit when drilling well, therefore can effectively solve some problems in competent bed and some complex formation drilling process.
The utility model content
The utility model provides a kind of cam-type high-frequency percussion drilling tool for solving the technical problem existed in known technology, this instrument can be eliminated the axial runout of drilling process, horizontal whirling motion and stick-slip phenomenon, improve the drilling machinery rotating speed, extend drilling tool application life.
The technical scheme that the utility model is taked for the technical problem existed in the solution known technology is:
Cam-type high-frequency percussion drilling tool, comprise screw rod assembly and axial vibration assembly;
Described screw rod assembly comprises the sealing drum be connected with helicoid hydraulic motor, the axle connected with the drilling well motor shaft and the lower contact be connected with axle;
Described axial vibration assembly comprise be arranged between sealing drum and axle and by securing member the overhead cam affixed with the sealing drum inwall, be arranged between sealing drum and axle and the lower cam be connected with the axle key and dish spring, flag nut and the thrust bearing that is sleeved on the axle outside, the lower contact that is threaded of described flag nut;
Also be provided with the upper sleeve gasket that is positioned at the overhead cam opposite side between described sealing drum and axle;
Be set with floating piston between described sealing drum and lower contact, and by floating piston, upper sleeve gasket, axle and be arranged on axle and lower contact between the first sealing ring and sealing drum form the airtight chamber that can be full of hydraulic oil.
The utility model can also adopt following technical scheme:
He Xia two ends, described sealing drum upper end are shaped with respectively for injecting and discharge the oil filler point of hydraulic oil, oil are housed on described oil filler point stifled.
The 2nd J type slip ring type combined sealing is housed between described upper sleeve gasket and axle.
Ball bearing and a J type slip ring type combined sealing are housed between described floating piston and sealing drum, lower contact.
Advantage and the good effect that the utlity model has are: because the utility model adopts technique scheme, during drillng operation by this instrument upper end connecting screw rod drilling tool, lower end connects drill bit, the pressure of the drill passes to flag nut by the power transmission shaft of helicoid hydraulic motor, the butterfly spring of this percussion drilling tool, and flag nut passes to drill bit again.Moment of torsion is to pass to drill bit by the spline joint on screw drill transmission shaft and flag nut, and the helicoid hydraulic motor overcoat is connected with the sealing drum of this percussion drilling tool, in the sealing drum cavity, is full of hydraulic oil.Overhead cam is fixed by fixing pin and sealing drum, and lower cam is fixed by key and axle, and overhead cam and lower cam produce relative motion, and produce vertical mechanical pressure, makes lower cam driven mandrel produce the impact force of high frequency.This instrument can be eliminated the axial runout of drilling process, laterally whirling motion and stick-slip phenomenon, improves the drilling machinery rotating speed, extends drilling tool application life.
This high-frequency percussion drilling tool forms mechanical shock energy high frequency, uniform and stable in drilling process, make drill bit and shaft bottom can remain continuous high frequency cutting, improve shear efficiency, one or more nuisance vibrations and the stick-slip phenomenon that may occur while eliminating drill bit movement.The drilling technology that spins is compared with other drilling technology, better utilized solid rock fragility large, and shear strength is lower, not impact-resistant weakness, and only need apply less the pressure of the drill and carry out the pressure holding drill bit when drilling well, therefore can effectively solve some problems in competent bed and some complex formation drilling process.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, lower contact; 2, an O RunddichtringO; 3, floating piston; 4, a J type slip ring type combined sealing; 5, adjusting pad; 6, the 2nd O RunddichtringO; 7, oil is stifled; 8, thrust bearing; 9, flag nut; 10, butterfly spring; 11, axle; 12, key; 13, lower cam; 14, overhead cam; 15, fixing pin; 16, A type circlip for hole; 17, the 3rd O RunddichtringO; 18, upper sleeve gasket; 19, sealing drum; 20, urceolus under helicoid hydraulic motor; 21, the 4th O RunddichtringO; 22, the 2nd J type slip ring type combined sealing; 23, deep groove ball bearing.
The specific embodiment
For further understanding utility model content of the present utility model, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, cam-type high-frequency percussion drilling tool, comprise screw rod assembly and axial vibration assembly;
Described screw rod assembly comprises the sealing drum 19 be connected with urceolus under helicoid hydraulic motor 20, the axle 11 connected with the drilling well motor shaft and the lower contact 1 be connected with axle, is provided with the 4th O RunddichtringO 21 under described sealing drum 19 and helicoid hydraulic motor between urceolus 20.
Described axial vibration assembly comprise be arranged between sealing drum and axle and by securing member the overhead cam 14 affixed with the sealing drum inwall, be arranged between sealing drum and axle and the lower cam 13 and the dish spring 10 that is sleeved on successively the axle outside, flag nut 9 and the thrust bearing 8 that with axle, by key 12, are connected, described flag nut is threaded connection lower contact 1, and described thrust bearing 8 is arranged between flag nut and the interior shoulder of sealing drum.In the present embodiment, described securing member is preferably fixing pin 15, and described overhead cam 14 is connected with the sealing drum inwall with A type circlip for hole 16 by 4 fixing pins 15, and by the 3rd O RunddichtringO 17 sealings.
Also be provided with the upper sleeve gasket 18 that is positioned at the overhead cam opposite side between described sealing drum and axle, the 2nd J type slip ring type combined sealing 22 is housed between described upper sleeve gasket and axle.
Be set with floating piston 3 between described sealing drum and lower contact, and by floating piston, upper sleeve gasket, axle and be arranged on axle and lower contact between an O RunddichtringO 2 form the airtight chamber that can be full of hydraulic oil with sealing drum.In the present embodiment, ball bearing and a J type slip ring type combined sealing 4 are housed between described floating piston and sealing drum, lower contact, described ball bearing is preferably deep groove ball bearing 23.
He Xia two ends, described sealing drum upper end are shaped with respectively for injecting and discharge the oil filler point of hydraulic oil, and stifled the 7 and the 2nd O RunddichtringO 6 of oil is housed on described oil filler point.
In described lower contact, the shoulder place is provided with adjusting pad 5, under original state, under the effect of butterfly spring 10, overhead cam, lower cam are in engagement, this instrument is exerted pressure to drill bit after entering well contact shaft bottom, drill bit and described lower contact 1 are up, by flag nut 9 compression butterfly springs 10, produce certain deformation quantity, i.e. distance between described adjusting pad 5 upper surfaces and axle 11 bottom faces.The thickness that changes described adjusting pad 9 can be regulated the deformation quantity of butterfly spring 10, thereby changes the impact force size that this instrument produces, and described adjusting pad thickness is less, and the high-frequency percussion power of generation is larger.
Operating principle of the present utility model is:
During normal drilling well, this high-frequency percussion drilling tool sealing drum 19 is connected to become integral body with helicoid hydraulic motor, and lower contact 1 connects drill bit.The power transmission shaft of helicoid hydraulic motor transfers a torque to axle 11, and axle is rotated, and axle drives lower contact 1 by flag nut 9 and rotates, thereby transfers a torque to drill bit.Meanwhile, axle and lower cam 13 are connected in one by key 12, lower cam rotates with axle 11, between sealing drum due to screw drill transmission shaft and this instrument, speed discrepancy is arranged, therefore make to produce relative rotation between overhead cam 14 and lower cam 13, thereby lower cam driven axle produces periodically vertically mechanical oscillation.Because axle is connected with drill bit by lower contact, vibration reaches drill bit the most at last, and then shaft bottom is produced to the high frequency axial impact.While being overhead cam, lower cam generation relative motion, two cam point produce periodically and meet, and produce vertical mechanical pressure, make lower cam driven mandrel produce the impact force of high frequency, and now, lower cam driven axle is descending.When meet in the two non-tops of cam, under the effect of butterfly spring 10, make two cams in engagement, lower cam driven axle is up, so goes round and begins again, and just can produce high frequency extensional vibration.Due to two cams all the time in the contact friction state, very easily wear and tear and produce high temperature, therefore be capable of reducing friction resistance and raising heat-sinking capability, therefore fill with hydraulic oil in the closed chamber formed by floating piston, upper sleeve gasket, axle and an O RunddichtringO 2 and sealing drum, and be equipped with thrust bearing 8 between flag nut 9 and the interior shoulder of sealing drum 19.
Claims (4)
1. a cam-type high-frequency percussion drilling tool, is characterized in that: comprise screw rod assembly and axial vibration assembly;
Described screw rod assembly comprises the sealing drum be connected with helicoid hydraulic motor, the axle connected with the drilling well motor shaft and the lower contact be connected with axle;
Described axial vibration assembly comprise be arranged between sealing drum and axle and by securing member the overhead cam affixed with the sealing drum inwall, be arranged between sealing drum and axle and the lower cam be connected with the axle key and dish spring, flag nut and the thrust bearing that is sleeved on the axle outside, the lower contact that is threaded of described flag nut;
Also be provided with the upper sleeve gasket that is positioned at the overhead cam opposite side between described sealing drum and axle;
Be set with floating piston between described sealing drum and lower contact, and by floating piston, upper sleeve gasket, axle and be arranged on axle and lower contact between the first sealing ring and sealing drum form the airtight chamber that can be full of hydraulic oil.
2. cam-type high-frequency percussion drilling tool according to claim 1 is characterized in that: He Xia two ends, described sealing drum upper end are shaped with respectively for injecting and discharge the oil filler point of hydraulic oil, oil are housed on described oil filler point stifled.
3. cam-type high-frequency percussion drilling tool according to claim 1, is characterized in that: the 2nd J type slip ring type combined sealing is housed between described upper sleeve gasket and axle.
4. cam-type high-frequency percussion drilling tool according to claim 1, is characterized in that: ball bearing and a J type slip ring type combined sealing are housed between described floating piston and sealing drum, lower contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320365898 CN203347681U (en) | 2013-06-25 | 2013-06-25 | Cam type high-frequency percussion drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320365898 CN203347681U (en) | 2013-06-25 | 2013-06-25 | Cam type high-frequency percussion drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203347681U true CN203347681U (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320365898 Expired - Fee Related CN203347681U (en) | 2013-06-25 | 2013-06-25 | Cam type high-frequency percussion drilling tool |
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| CN (1) | CN203347681U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321569A (en) * | 2013-06-25 | 2013-09-25 | 中国海洋石油总公司 | Cam type high-frequency percussion well drilling tool |
| CN104775783A (en) * | 2015-04-17 | 2015-07-15 | 北京沃客石油工程技术研究院 | Axial oscillating module for hydroscillator |
| CN105932507A (en) * | 2016-04-18 | 2016-09-07 | 中国石油天然气集团公司 | Collector slip ring device for electric drilling tool |
| CN107178361A (en) * | 2017-06-28 | 2017-09-19 | 大庆纽斯达采油技术开发有限公司 | A kind of holographic tester of eccentric stratified injection well and method of testing |
| CN110984843A (en) * | 2019-12-29 | 2020-04-10 | 东莞海特帕沃液压科技有限公司 | Hydraulic percussion drill power device |
| RU2774342C2 (en) * | 2018-04-27 | 2022-06-17 | РАЙВЛ ДАУНХОУЛ ТУЛС ЭлСи | Integrated bearing section and method |
| CN118327448A (en) * | 2024-06-12 | 2024-07-12 | 山东石油化工学院 | Torque-increasing driving device |
-
2013
- 2013-06-25 CN CN 201320365898 patent/CN203347681U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321569A (en) * | 2013-06-25 | 2013-09-25 | 中国海洋石油总公司 | Cam type high-frequency percussion well drilling tool |
| CN104775783A (en) * | 2015-04-17 | 2015-07-15 | 北京沃客石油工程技术研究院 | Axial oscillating module for hydroscillator |
| CN105932507A (en) * | 2016-04-18 | 2016-09-07 | 中国石油天然气集团公司 | Collector slip ring device for electric drilling tool |
| CN105932507B (en) * | 2016-04-18 | 2018-08-14 | 中国石油天然气集团公司 | Motor-driven drilling tool current-collecting slip ring device |
| CN107178361A (en) * | 2017-06-28 | 2017-09-19 | 大庆纽斯达采油技术开发有限公司 | A kind of holographic tester of eccentric stratified injection well and method of testing |
| RU2774342C2 (en) * | 2018-04-27 | 2022-06-17 | РАЙВЛ ДАУНХОУЛ ТУЛС ЭлСи | Integrated bearing section and method |
| CN110984843A (en) * | 2019-12-29 | 2020-04-10 | 东莞海特帕沃液压科技有限公司 | Hydraulic percussion drill power device |
| CN110984843B (en) * | 2019-12-29 | 2021-09-10 | 东台市高科技术创业园有限公司 | Hydraulic percussion drill power device |
| CN118327448A (en) * | 2024-06-12 | 2024-07-12 | 山东石油化工学院 | Torque-increasing driving device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20190625 |