CN106930684A - Planet milling formula broken rock device - Google Patents
Planet milling formula broken rock device Download PDFInfo
- Publication number
- CN106930684A CN106930684A CN201511004393.4A CN201511004393A CN106930684A CN 106930684 A CN106930684 A CN 106930684A CN 201511004393 A CN201511004393 A CN 201511004393A CN 106930684 A CN106930684 A CN 106930684A
- Authority
- CN
- China
- Prior art keywords
- stabilizer
- drill bit
- broken rock
- power transmission
- transmission shaft
- 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.)
- Pending
Links
- 239000011435 rock Substances 0.000 title claims abstract description 47
- 238000003801 milling Methods 0.000 title claims abstract description 23
- 239000003381 stabilizer Substances 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 238000006073 displacement reaction Methods 0.000 claims abstract description 21
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 abstract description 26
- 230000033001 locomotion Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 7
- 230000035515 penetration Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000007787 solid Substances 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
- 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)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of planet milling formula broken rock device, mainly it is made up of housing, positive displacement power assembly, by-pass prot, stabilizer, power transmission shaft, lower contact, drill bit, wherein, the center overlapping of axles of positive displacement power assembly and power transmission shaft constitutes bit central axle；Housing, stabilizer, the center overlapping of axles of lower contact, constitute well central shaft；Bit central axle 7 and well central shaft 8 are misaligned.The device can make drill bit produce planetary motion, solve the problems, such as that the low broken rock energy of conventional bit center line velocity is not enough, for drill bit broken rock provides rotating speed high and high pulling torque, with the function that big size hole is drilled to using small bits, having broken one drill bit of tradition can only bore the limitation of single size well, and drilling well integrated cost is reduced while efficiency of breaking rock is improved；Bigger cutting output can be obtained, BHA can also more stablized, be conducive to controlling hole quality, moreover it is possible to prevent landwaste Repeated Cutting, promote to be returned on landwaste.
Description
Technical field
The present invention relates to oil and gas well drilling, the drilling tool in CBM Drilling field, especially a kind of planet milling formula broken rock device.
Background technology
For the exploitation of deep-seated oil gas reservoir, with the increase of well depth, rock stratum is harder to be difficult to crush, and has had a strong impact on the raising of rate of penetration, and existing conventional rock-breaking and well-drilling technology can not meet the technological requirement for putting forward effect.The subject matter that PDC drill bit faces is that big size hole drilling speed is slow, high abrasive stratum bit wear is serious, large scale or high-performance drill bit are expensive, the low broken rock energy of bit central linear velocity is not enough.New well drilling technology such as laser drill, drilling by use of heat, particle punching drilling can't carry out live application.
The content of the invention
The purpose of the present invention is directed to the problem of prior art presence, is oil and gas well drilling, CBM Drilling, geological prospecting, a kind of mine probing simple structure of proposition, dependable performance, control accuracy planet milling formula broken rock device high, easy to operate.The device is while conventional drilling technology advantage is played, further improve solid rock, the rock breaking capacity of high abrasive rock, break foreign technology monopolization, realize that small bits are drilled to the function of big size hole, improve the control ability of hole quality, reduce drilling well integrated cost, shorten the construction operation cycle, meet the technological requirement of deep-seated oil gas reservoir Efficient Development drilling well, the drilling technology level for lifting deep-seated oil gas reservoir Efficient Development has important economic worth and social value.
The technical solution adopted for the present invention to solve the technical problems is：
Planet milling formula broken rock device, mainly it is made up of housing 1, positive displacement power assembly 2, by-pass prot 4, stabilizer 5, power transmission shaft 6, lower contact 10, drill bit 9, wherein, positive displacement power assembly 2, power transmission shaft 6 are installed in inside housing 1, the top of power transmission shaft 6 is provided with by-pass prot 4 with the joint portion of positive displacement power assembly 2, and the bottom of power transmission shaft 6 is connected with lower contact 10, and lower contact 10 is located at the bottom of housing 1, lower contact 10 is connected with drill bit 9, it is characterised in that：Positive displacement power assembly 2 and the center overlapping of axles of power transmission shaft 6, constitute bit central axle 7；Housing 1, stabilizer 5, the center overlapping of axles of lower contact 10, constitute well central shaft 8；Bit central axle 7 and well central shaft 8 are misaligned.
Such scheme is further included：
Shaft coupling 3 is installed between positive displacement power assembly 2 and power transmission shaft 6.
The outside of housing 1 is installed by stabilizer 5.
The stabilizer 5 is idler wheel stabilizer, or spiral stability stabilizer, or straight rib type stabilizer.
Effect of the invention is mainly reflected in：
Planet milling formula drilling technique is combined with drilling technology, planet milling formula broken rock device enables drill bit with planetary rotary motion rock cutting, more conventional single-shaft-rotation broken rock mode, institute's bored borehole better quality, stability is stronger, it is adaptable to all kinds drill bit（Rock bit, PDC drill bit）Technical requirements, compared with conventional breaking technique for rock, under conditions of same consumption energy and drilling period, can cut more rocks, i.e. rate of penetration faster, efficiency of breaking rock it is higher；And small bits large-size drill bit is cheap, and big size hole can be got out again, its economic benefit is very notable.Field practice is proved, average to improve drilling efficiency 56.7% using planet milling formula broken rock device drilling well, saves drilling period 5-8 days, and drilling quality meets design standard, realizes low energy consumption, efficient drilling well purpose.
Meanwhile, planet milling formula broken rock device also has that structure design is simple, dependable performance, easy to operate feature.
Brief description of the drawings
Fig. 1 is according to planet milling formula broken rock apparatus structure schematic diagram proposed by the invention.
Fig. 2 is the lower contact and drill bit combination diagram according to planet milling formula broken rock device proposed by the invention.
Fig. 3 is according to drill bit movement locus schematic diagram in the wellbore in planet milling formula broken rock device rotary course proposed by the invention.
1- housings, 2- positive displacements power assembly, 3- shaft couplings, 4- by-pass prots, 5- stabilizers, 6- power transmission shafts, 7- bit centrals axle, 8- wells central shaft, 9- drill bits, 10- lower contacts in figure.
Specific embodiment
Describe the present invention in detail below in conjunction with the accompanying drawings.
Reference picture 1, planet milling formula broken rock device, mainly it is made up of housing 1, positive displacement power assembly 2, by-pass prot 4, stabilizer 5, power transmission shaft 6, lower contact 10, drill bit 9, wherein, positive displacement power assembly 2, power transmission shaft 6 are installed in inside housing 1, and the top of power transmission shaft 6 is provided with by-pass prot 4 with the joint portion of positive displacement power assembly 2, the bottom of power transmission shaft 6 is connected with lower contact 10, lower contact 10 is located at the bottom of housing 1, and lower contact 10 is connected with drill bit 9, and its essential distinction is：Positive displacement power assembly 2 and the center overlapping of axles of power transmission shaft 6, constitute bit central axle 7；Housing 1, stabilizer 5, the center overlapping of axles of lower contact 10, constitute well central shaft 8；Bit central axle 7 and well central shaft 8 are misaligned.
Above-described embodiment is further included：
Shaft coupling 3 is installed between positive displacement power assembly 2 and power transmission shaft 6.
The outside of housing 1 is installed by stabilizer 5.
The stabilizer 5 is idler wheel stabilizer, or spiral stability stabilizer, or straight rib type stabilizer.
Operation principle of the invention and effect：
During well drilling and rock crushing, drill bit is connected with lower contact, ground rotating disk and hydraulic pump is then started, after drilling fluid enters planet milling formula broken rock device, drilling fluid drives positive displacement power assembly to start to rotate, drive axis are driven by shaft coupling, and then drives lower contact to rotate, lower contact is rotated and drives drill bit to start rotation broken rock, drilling fluid is by after positive displacement power assembly, enter inside power transmission shaft through by-pass prot, then reach lower contact, eventually pass drill bit and reach shaft bottom.At the same time, drill bit is reached because the driving torque of ground rotating disk is transferred to planet milling formula broken rock device case by drill string, also drill bit is driven to rotate broken rock with the rotation of planet milling formula broken rock device case, when different component rotates respectively around respective central shaft in planet milling formula broken rock device, drill bit is allowed for while having rotation and revolution two states.Due to positive displacement power assembly, shaft coupling, the central shaft of power transmission shaft and bit central overlapping of axles, and housing, stabilizer, the central shaft of lower contact and well center overlapping of axles, allow for bit central axle and produce bias with well central shaft, as drill bit rotation is carried out with while revolution, drill bit is formed planetary motion in shaft bottom.Planetary motion can make small bits with the function of being drilled to big size hole, bottom rock can be to greatest extent cut again, so as to obtain rate of penetration higher, additionally it is possible to control hole quality, while also overcoming the deficiency of the low efficiency of breaking rock difference of conventional bit center line velocity.Planet milling formula broken rock device enables drill bit with planetary rotary motion rock cutting, and more conventional single-shaft-rotation broken rock mode, institute's bored borehole better quality, stability is stronger, it is adaptable to all kinds drill bit（Rock bit, PDC drill bit）Technical requirements, compared with conventional breaking technique for rock, under conditions of same consumption energy and drilling period, can cut more rocks, i.e. rate of penetration faster, efficiency of breaking rock it is higher；And small bits large-size drill bit is cheap, and big size hole can be got out again, its economic benefit is very notable.
Claims (4)
1. planet milling formula broken rock device, mainly by housing（1）, positive displacement power assembly（2）, by-pass prot（4）, stabilizer（5）, power transmission shaft（6）, lower contact（10）, drill bit（9）Composition, wherein, positive displacement power assembly（2）, power transmission shaft（6）It is installed in housing（1）Inside, power transmission shaft（6）Top and positive displacement power assembly（2）Joint portion is provided with by-pass prot（4）, power transmission shaft（6）Bottom and lower contact（10）Connection, lower contact（10）Positioned at housing（1）Bottom, lower contact（10）With drill bit（9）Connection, it is characterised in that：Positive displacement power assembly（2）With power transmission shaft（6）Center overlapping of axles, constitute bit central axle（7）；Housing（1）, stabilizer（5）, lower contact（10）Center overlapping of axles, constitute well central shaft（8）；Bit central axle（7）With well central shaft（8）It is misaligned.
2. planet milling formula broken rock device according to claim 1, it is characterized in that：Positive displacement power assembly（2）With power transmission shaft（6）Between shaft coupling is installed（3）.
3. planet milling formula broken rock device according to claim 1 and 2, it is characterized in that：Housing（1）Outside is installed by stabilizer（5）.
4. planet milling formula broken rock device according to claim 3, it is characterized in that：The stabilizer（5）It is idler wheel stabilizer, or spiral stability stabilizer, or straight rib type stabilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511004393.4A CN106930684A (en) | 2015-12-29 | 2015-12-29 | Planet milling formula broken rock device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511004393.4A CN106930684A (en) | 2015-12-29 | 2015-12-29 | Planet milling formula broken rock device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106930684A true CN106930684A (en) | 2017-07-07 |
Family
ID=59458329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511004393.4A Pending CN106930684A (en) | 2015-12-29 | 2015-12-29 | Planet milling formula broken rock device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106930684A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992019835A1 (en) * | 1991-04-29 | 1992-11-12 | C. Deilmann Aktiengesellschaft | Hydraulically driven drilling motor for deep drilling |
| CN202689934U (en) * | 2012-06-21 | 2013-01-23 | 中国石油化工股份有限公司 | Underground vibration damper |
| CN202990851U (en) * | 2012-11-01 | 2013-06-12 | 中国海洋石油总公司 | Screw type high-frequency percussion drilling tool |
| US20140332275A1 (en) * | 2011-11-18 | 2014-11-13 | Smith International, Inc. | Positive Displacement Motor With Radially Constrained Rotor Catch |
| CN204200458U (en) * | 2014-09-28 | 2015-03-11 | 中国石油化工集团公司 | Positive displacement charging turbine motor |
| CN204457418U (en) * | 2015-01-31 | 2015-07-08 | 中石化石油工程技术服务有限公司 | Transient state low pressure cavitation corrosion pulsing jet drill motor |
| CN205445460U (en) * | 2015-12-29 | 2016-08-10 | 中石化石油工程技术服务有限公司 | Rock device is broken to planet milling formula |
-
2015
- 2015-12-29 CN CN201511004393.4A patent/CN106930684A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992019835A1 (en) * | 1991-04-29 | 1992-11-12 | C. Deilmann Aktiengesellschaft | Hydraulically driven drilling motor for deep drilling |
| US20140332275A1 (en) * | 2011-11-18 | 2014-11-13 | Smith International, Inc. | Positive Displacement Motor With Radially Constrained Rotor Catch |
| CN202689934U (en) * | 2012-06-21 | 2013-01-23 | 中国石油化工股份有限公司 | Underground vibration damper |
| CN202990851U (en) * | 2012-11-01 | 2013-06-12 | 中国海洋石油总公司 | Screw type high-frequency percussion drilling tool |
| CN204200458U (en) * | 2014-09-28 | 2015-03-11 | 中国石油化工集团公司 | Positive displacement charging turbine motor |
| CN204457418U (en) * | 2015-01-31 | 2015-07-08 | 中石化石油工程技术服务有限公司 | Transient state low pressure cavitation corrosion pulsing jet drill motor |
| CN205445460U (en) * | 2015-12-29 | 2016-08-10 | 中石化石油工程技术服务有限公司 | Rock device is broken to planet milling formula |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20170707 |