CN203296693U - Drilling tool capable of generating axial impact vibration - Google Patents

Drilling tool capable of generating axial impact vibration Download PDF

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Publication number
CN203296693U
CN203296693U CN2013203623842U CN201320362384U CN203296693U CN 203296693 U CN203296693 U CN 203296693U CN 2013203623842 U CN2013203623842 U CN 2013203623842U CN 201320362384 U CN201320362384 U CN 201320362384U CN 203296693 U CN203296693 U CN 203296693U
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CN
China
Prior art keywords
sleeve
drilling tool
jump bit
drilling
hammering block
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.)
Expired - Fee Related
Application number
CN2013203623842U
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Chinese (zh)
Inventor
陶瑞东
王瑞和
许京国
王鹏
张建荣
倪红坚
王永路
邱明川
杨静
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
THIRD DRILLING ENGINEERING SERVICE BRANCH OF CNPC BOHAI DRILLING ENGINEERING Co Ltd
China University of Petroleum Beijing CUPB
China University of Petroleum UPC East China
Original Assignee
THIRD DRILLING ENGINEERING SERVICE BRANCH OF CNPC BOHAI DRILLING ENGINEERING Co Ltd
China University of Petroleum UPC East China
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by THIRD DRILLING ENGINEERING SERVICE BRANCH OF CNPC BOHAI DRILLING ENGINEERING Co Ltd, China University of Petroleum UPC East China filed Critical THIRD DRILLING ENGINEERING SERVICE BRANCH OF CNPC BOHAI DRILLING ENGINEERING Co Ltd
Priority to CN2013203623842U priority Critical patent/CN203296693U/en
Application granted granted Critical
Publication of CN203296693U publication Critical patent/CN203296693U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to the technical field of petroleum and natural gas drilling supporting devices and provides a drilling tool capable of generating axial impact vibration. The drilling tool comprises a sleeve, wherein an upper connector is installed at the upper end of the sleeve. An inner barrel with the lower end sealed is clamped in the sleeve, the upper end of the inner barrel abuts against the upper connector, and the position of the center of the lower end of the inner barrel is provided with an inner barrel center hole. An anvil is slidably arranged in the sleeve, the lower end of the anvil penetrates through the sleeve and is in threaded connection with a lower connector, and an impact hammer capable of generating axial impact on the anvil is arranged between the anvil and the inner barrel and slidably arranged in the sleeve. To overcome drag pressure and stick slip in the drilling process of a high-friction-drag well section, the characteristic that vibration can have influence on friction coefficient of friction pairs is utilized, an axial vibration anti-drag technology is introduced into drilling engineering, limitation of conventional anti-drag measures is broken through, friction drag and torque between a drill column and a well wall can be effectively reduced, and the drilling tool has the advantages of being effective and controllable and has extensive application prospect.

Description

A kind of drilling tool that can produce the axial impact vibration
Technical field
The utility model relates to the corollary apparatus technical field of oil, gas drilling, relates in particular to a kind of drilling tool that can produce the axial impact vibration.
Background technology
Contacting in drilling process between drill string and the borehole wall, friction, make the pressure of the drill and moment of torsion can't effectively pass to drill bit, namely produce " dragging pressure ", " stick-slip " phenomenon, this phenomenon is along with the increase of difference and more obvious between head of liquid and formation pore pressure in the formation of the increase of hole angle, cutting bed and well, when serious, the pressure of the drill can't impose on drill bit fully, cause can't continuing to creep into, or cause drill bit to produce the stick-slip vibration, accelerate damage and the inefficacy of drill bit.Routine reduces the frictional resistance between drill string and the borehole wall, the main method of moment of torsion comprises Optimize Casing Program and mud property, reduces or avoid the formation of cutting bed, improves mud cake quality, adopts rotary steerable drilling and underbalance or near-balance drilling mode etc.But all there is certain limitation in abovementioned technology, and effect is limited.
Research shows that vibration can change the Frotteurism between friction pair, and the friction factor between friction pair is reduced, and the vibration drag reduction technology has been widely used in each engineering field.The vibration drag reduction technology belongs to controlled active drag reduction technology, is applied to drill string and borehole wall drag reduction, can overcome the limitation of conventional antifriction resistance moment of torsion technology, is an important development direction of high frictional resistance well drilling well drag reduction theoretical research and instrument development.Laboratory test results shows, in axial vibration, twisting vibration and three kinds of mode of vibrations of oscillation crosswise, the axial vibration drag-reduction effect greater than twisting vibration greater than oscillation crosswise.
The utility model content
The purpose of this utility model is to provide a kind of drilling tool that can produce the axial impact vibration, is intended to reach " stick-slip " phenomenon for eliminating " dragging pressures " that drilling process exists, thus raising rate of penetration and ultimate extension distance.
The utility model is to realize like this, a kind of drilling tool that can produce the axial impact vibration, comprise sleeve, the upper end of described sleeve is equipped with top connection, in described sleeve, be arranged with the inner core of lower end closed, the upper end of described inner core leans in described top connection, and the center, lower end of described inner core offers the inner core centre bore;
In described sleeve, slide and be provided with hammering block, described sleeve the lower contact that has been threaded are passed in the lower end of described hammering block, between inner core described hammering block and described, are provided with and can to described hammering block, produce the jump bit of axial impact, and jump bit slides and is arranged in described inner core.
As a kind of improved plan, described jump bit is provided with the throttling projection near the center of an end face of described inner core lower surface, and the diameter of described throttling projection is less than the diameter of described inner core centre bore;
What on described jump bit, be positioned at described throttling projection offers some jump bit pod apertures on every side, and drilling liquid flow is when described jump bit, along the axis of described jump bit pod apertures away from described jump bit;
On described hammering block, along its circumferential correspondence, offer some hammering block pod apertures, drilling liquid flow is when described hammering block, along the axis of described hammering block pod apertures near described hammering block.
As a kind of improved plan, the center of the lower surface of described jump bit is provided with impacts projection.
As a kind of improved plan, between the top end face of described jump bit and described inner core and described sleeve, surround the pressure buffer chamber, the position that is positioned at described pressure buffer chamber on described sleeve wall is circumferentially with some relieving devices along it.
As a kind of improved plan, between the bottom of described hammering block and the lower end of described sleeve, for polygon, be slidably matched.
As a kind of improved plan, described all interior generations of drilling tool that can produce the axial impact vibration are equipped with seal between two parts in axial sliding.
The drilling tool that can produce the axial impact vibration that the utility model provides, be provided with top connection, inner core, jump bit and hammering block in sleeve due to it, and the lower contact that is threaded in the lower end of hammering block; This drilling tool is arranged in the drill string apart from the drill bit certain distance, when drilling liquid flow during through this drilling tool, drilling tool produces the axial impact vibration, this axial impact vibration drives lower drilling string and produces axial vibration, eliminate " dragging pressure " and " stick-slip " phenomenon in drilling process, thereby improve rate of penetration and ultimate extension distance; When this drilling tool was directly installed on drill bit top, this axial impact vibration directly acted on bottom rock by drill bit, changes the stress of rock, improves rate of penetration.
The utility model reaches " stick-slip " phenomenon for " dragging pressure " of in high frictional resistance well section drilling process, existing, the characteristic of utilizing vibration to exert an influence to the friction factor between friction pair, the axial vibration drag reduction technology is introduced in drilling engineering, break through the limitation of conventional drag reduction measure, can effectively reduce frictional resistance and moment of torsion between drill string and the borehole wall, have effective, controlled characteristics, be with a wide range of applications.
The accompanying drawing explanation
Fig. 1 is the structural representation of the drilling tool that can produce axial impact vibration that provides of the utility model;
Fig. 2 is the sectional view of A-A in Fig. 1;
In figure: the 1-top connection, the 2-sleeve, the 3-inner core, 4-pressure buffer chamber, 41-relieving device, 5-jump bit, 51-impact projection, 6-hammering block, 7-lower contact, 8-inner core centre bore, 9-throttling projection, 10-jump bit pod apertures, 11-hammering block pod apertures.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The drilling tool that can produce the axial impact vibration that the utility model provides comprises sleeve, the upper end of this sleeve is equipped with top connection, in sleeve, be arranged with the inner core of lower end closed, the upper end of inner core leans in top connection, and the center, lower end of inner core offers the inner core centre bore;
Slide and be provided with hammering block in sleeve, sleeve is passed and the lower contact that has been threaded in the lower end of hammering block, hammering block and inner core between be provided with and can produce to hammering block the jump bit of axial impact, jump bit slides and is arranged in sleeve.
Fig. 1 shows the structural representation of the drilling tool that can produce the axial impact vibration that the utility model provides, and for convenience of explanation, this figure only provides the structure division relevant with the utility model.
The drilling tool that can produce the axial impact vibration comprises sleeve 2, its upper end is equipped with top connection 1, in this embodiment, the inboard that the mode that top connection 1 is threaded connection is fixed on sleeve 2 helps installation and the dismounting of following other structure, in sleeve 2, be arranged with the inner core 3 of lower end closed, the upper end of inner core 3 leans in top connection 1, and the center, lower end of inner core offers inner core centre bore 8;
The interior slip of sleeve 2 is provided with hammering block 6, and sleeve is passed and the lower contact 7 that has been threaded in the lower end of hammering block 6, between hammering block 6 and inner core 3, is provided with and can to hammering block 6, produces the jump bit 5 of axial impact, and jump bit slides and is arranged in sleeve 2.
In this embodiment, jump bit 5 is provided with throttling projection 9 near the center of an end face of inner core 3 lower surfaces, and the diameter of throttling projection 9 is less than the diameter of inner core centre bore 8;
What on jump bit 5, be positioned at throttling projection 9 offers some jump bit pod apertures 10 on every side, and drilling liquid flow is when jump bit 5, along the axis of jump bit pod apertures 51 away from jump bit 5;
On hammering block 6, along its circumferential correspondence, offer some hammering block pod apertures 11, drilling liquid flow is when hammering block 6, along the axis of its pod apertures near hammering block 6.
during use, top connection 1 is connected with upper drilling string, cleaner for high-pressure drilling fluid is flowed in this drilling tool by top connection 1, under the guide effect of the jump bit pod apertures 10 of cleaner for high-pressure drilling fluid in jump bit 5, while flowing out jump bit, be full of the cavity between jump bit 5 and hammering block 6, and promotion jump bit 5 moves upward, along with reducing of distance between jump bit 5 and inner core 3, throttling projection 9 stretches into inner core centre bore 8, due to the drilling fluid area of passage, reduce to produce water hammer, jump bit 5 moves downward at a high speed and impacts hammering block 6 under the effect of surge pressure, and by lower contact 7, this axial impact vibration is passed to connected lower drilling string or drill bit.
In the time of in this drilling tool is arranged on apart from the drill string of drill bit certain distance, this axial impact vibration drives lower drilling string and produces axial vibration, eliminates " dragging pressure " and " stick-slip " phenomenon in drilling process, thereby improves rate of penetration and ultimate extension distance; When this drilling tool was directly installed on drill bit top, this axial impact vibration directly acted on bottom rock by drill bit, changes the stress of rock, improves rate of penetration.
In this embodiment, in the center of the lower surface of jump bit 5, be provided with and impact projection 51.After adopting this kind structure, the pressure in the time of can increasing by 5 pairs of hammering blocks of jump bit 6 and impact, strengthen the effect of the impact shock of its generation.
In this embodiment, surround pressure buffer chamber 4 between between the top end face of jump bit 5 and inner core 3 and sleeve 2, the position that is positioned at pressure buffer chamber 4 on sleeve 2 walls is circumferentially with some relieving devices 41 along it.After adopting this kind structure, the relieving device 41 on sleeve 2 can be incorporated into low-pressure drilling liquid in pressure buffer chamber 4, plays the effect of buffering, prevents that jump bit 5 from impacting inner core 3 when moving upward.
In this embodiment, as shown in Figure 2, between the lower end of the bottom of hammering block 6 and sleeve 2, for polygon is slidably matched, the moment of torsion of drill string can be passed to drill bit effectively.
In this embodiment, all generations in this can produce the drilling tool of axial impact vibration are equipped with seal between two parts in axial sliding, can make it keep between any two slipper seal, prevent that drilling fluid is in its cooperation place leakage, both guarantee the descending impact force of jump bit 5, and can protect its speed uplink again.
The drilling tool that can produce the axial impact vibration that the utility model provides, be provided with top connection, inner core and percussion mechanism in sleeve due to it, and the lower contact that is threaded in the lower end of percussion mechanism; This drilling tool is arranged in the drill string apart from the drill bit certain distance, when drilling liquid flow during through this drilling tool, drilling tool produces the axial impact vibration, this axial impact vibration drives lower drilling string and produces axial vibration, eliminate " dragging pressure " and " stick-slip " phenomenon in drilling process, thereby improve rate of penetration and ultimate extension distance; When this drilling tool was directly installed on drill bit top, this axial impact vibration directly acted on bottom rock by drill bit, changes the stress of rock, improves rate of penetration.
The utility model reaches " stick-slip " phenomenon for " dragging pressure " of in high frictional resistance well section drilling process, existing, the characteristic of utilizing vibration to exert an influence to the friction factor between friction pair, the axial vibration drag reduction technology is introduced in drilling engineering, break through the limitation of conventional drag reduction measure, can effectively reduce frictional resistance and moment of torsion between drill string and the borehole wall, have effective, controlled characteristics, be with a wide range of applications.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.

Claims (6)

1. one kind can produce the drilling tool that axial impact vibrates, comprise sleeve, it is characterized in that: the upper end of described sleeve is equipped with top connection, in described sleeve, be arranged with the inner core of lower end closed, the upper end of described inner core leans in described top connection, and the center, lower end of described inner core offers the inner core centre bore;
In described sleeve, slide and be provided with hammering block, described sleeve the lower contact that has been threaded are passed in the lower end of described hammering block, between inner core described hammering block and described, are provided with and can to described hammering block, produce the jump bit of axial impact, and jump bit slides and is arranged in described sleeve.
2. the drilling tool that can produce axial impact vibration as claimed in claim 1, it is characterized in that: described jump bit is provided with the throttling projection near the center of an end face of described inner core lower surface, and the diameter of described throttling projection is less than the diameter of described inner core centre bore;
What on described jump bit, be positioned at described throttling projection offers some jump bit pod apertures on every side, and drilling liquid flow is when described jump bit, along the axis of described jump bit pod apertures away from described jump bit;
On described hammering block, along its circumferential correspondence, offer some hammering block pod apertures, drilling liquid flow is when described hammering block, along the axis of described hammering block pod apertures near described hammering block.
3. the drilling tool that can produce axial impact vibration as claimed in claim 2, it is characterized in that: the center of the lower surface of described jump bit is provided with impacts projection.
4. the drilling tool that can produce axial impact vibration as claimed in claim 3, it is characterized in that: the gap that surrounds between the top end face of described jump bit and described inner core and described sleeve forms the pressure buffer chamber, and the position that is positioned at described pressure buffer chamber on described sleeve wall is circumferentially with some relieving devices along it.
5. the drilling tool that can produce the axial impact vibration as described as claim 1 to 4 any one, is characterized in that: between the bottom of described hammering block and the lower end of described sleeve, for polygon, be slidably matched.
6. the drilling tool that can produce axial impact vibration as claimed in claim 5 is characterized in that: all generations in the described drilling tool that can produce the axial impact vibration are equipped with seal between two parts in axial sliding.
CN2013203623842U 2013-06-22 2013-06-22 Drilling tool capable of generating axial impact vibration Expired - Fee Related CN203296693U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103742076A (en) * 2014-01-02 2014-04-23 中国石油集团川庆钻探工程有限公司长庆钻井总公司 Axial vibrator
CN103774983A (en) * 2013-12-25 2014-05-07 中国石油大学(华东) Jet type torsional impact drilling tool
CN103953281A (en) * 2014-05-06 2014-07-30 北京信息科技大学 Composite impact drilling tool
CN104314471A (en) * 2014-09-29 2015-01-28 中国石油大学(华东) Underground torsion impact stimulation device based on drill string vibration
CN104790894A (en) * 2015-03-30 2015-07-22 西南石油大学 Slim hole drilling friction reduction and resistance reduction speed increase tool
CN105756597A (en) * 2016-04-07 2016-07-13 中国地质大学(武汉) Jar
CN106103883A (en) * 2014-04-18 2016-11-09 哈里伯顿能源服务公司 Reactive valve drilling jar system
CN106812462A (en) * 2016-12-28 2017-06-09 倪红坚 A kind of multidimensional percussion drilling tool
CN106958416A (en) * 2017-03-30 2017-07-18 中石化石油工程技术服务有限公司 A kind of percussion drilling tool
CN108915591A (en) * 2018-07-05 2018-11-30 中煤科工集团西安研究院有限公司 Underground coal mine approximate horizontal long-hole directional drilling drillstring vibrations drag reduction method
CN110905419A (en) * 2019-12-23 2020-03-24 中国石油大学(华东) Petroleum drilling tool

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103774983A (en) * 2013-12-25 2014-05-07 中国石油大学(华东) Jet type torsional impact drilling tool
CN103742076B (en) * 2014-01-02 2017-01-04 中国石油集团川庆钻探工程有限公司长庆钻井总公司 axial vibrator
CN103742076A (en) * 2014-01-02 2014-04-23 中国石油集团川庆钻探工程有限公司长庆钻井总公司 Axial vibrator
US10294745B2 (en) 2014-04-18 2019-05-21 Halliburton Energy Services, Inc. Reaction valve drilling jar system
US10787875B2 (en) 2014-04-18 2020-09-29 Halliburton Energy Services, Inc. Reaction valve drilling jar system
CN106103883A (en) * 2014-04-18 2016-11-09 哈里伯顿能源服务公司 Reactive valve drilling jar system
CN103953281B (en) * 2014-05-06 2016-01-13 北京信息科技大学 composite impact drilling tool
CN103953281A (en) * 2014-05-06 2014-07-30 北京信息科技大学 Composite impact drilling tool
CN104314471B (en) * 2014-09-29 2015-07-08 中国石油大学(华东) Underground torsion impact stimulation device based on drill string vibration
CN104314471A (en) * 2014-09-29 2015-01-28 中国石油大学(华东) Underground torsion impact stimulation device based on drill string vibration
CN104790894A (en) * 2015-03-30 2015-07-22 西南石油大学 Slim hole drilling friction reduction and resistance reduction speed increase tool
CN105756597B (en) * 2016-04-07 2018-08-10 中国地质大学(武汉) A kind of bumper jar
CN105756597A (en) * 2016-04-07 2016-07-13 中国地质大学(武汉) Jar
CN106812462A (en) * 2016-12-28 2017-06-09 倪红坚 A kind of multidimensional percussion drilling tool
CN106958416A (en) * 2017-03-30 2017-07-18 中石化石油工程技术服务有限公司 A kind of percussion drilling tool
CN108915591B (en) * 2018-07-05 2019-11-08 中煤科工集团西安研究院有限公司 Underground coal mine approximate horizontal long-hole directional drilling drillstring vibrations drag reduction method
CN108915591A (en) * 2018-07-05 2018-11-30 中煤科工集团西安研究院有限公司 Underground coal mine approximate horizontal long-hole directional drilling drillstring vibrations drag reduction method
CN110905419A (en) * 2019-12-23 2020-03-24 中国石油大学(华东) Petroleum drilling tool
CN110905419B (en) * 2019-12-23 2021-06-11 中国石油大学(华东) Petroleum drilling tool

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Granted publication date: 20131120

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