CN104074471B - Super large caliber rig rotary joint structure - Google Patents
Super large caliber rig rotary joint structure Download PDFInfo
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- CN104074471B CN104074471B CN201410337936.3A CN201410337936A CN104074471B CN 104074471 B CN104074471 B CN 104074471B CN 201410337936 A CN201410337936 A CN 201410337936A CN 104074471 B CN104074471 B CN 104074471B
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Abstract
<b> super large caliber rig rotary joint structure, this device has a flanged (FLGD) total pipeline expansion coupling in bottom, rotate in pipe at drilling cramp, the flexible lower elastic conveyance conduit of band and elasticity conveyance conduit joint are installed, wear-resistant seal ring is installed, on the both sides of lower elastic conveyance conduit, lower circuit passage is installed, upper end has one to be with flexible brushgear housing, top elasticity conveyance conduit and upper circuit passage are fixed by top differential and are connected on total pipeline expansion coupling tube wall, lower circuit passage and lower elastic conveyance conduit are fixed differential by bottom and are fixed and be connected to drilling cramp and rotate on tube wall, this drilling cramp rotates tube end and is threaded, respectively connected fixing big nut and conical bearing from top to bottom, this structure is arranged on dexterously and rotates drilling cramp top, do not affect the rotation operation of bottom pivoted frame at all, the fixing of top total pipeline expansion coupling is not affected yet, the suction of the conducting of power supply and dregs all can straightwayly be carried out.</b>
Description
Technical field
the present invention relates to a kind of rotary joint structure of rotary rig, especially a kind of super large caliber rig rotary joint structure.
Background technology
at present, for the trepan of drillng operation, drilling well bore is mostly smaller, and the degree of depth of drilling well is also inadequate.Like this to drillng operation very unfavorable, not only can not meet the bore requirement of drilling well, further, in drilling operation course, also waste too much resource, one is that existing rig volume is large, be difficult to transport, two is use energy large, and drilling cost is increased, especially all the more so to the drilling well of super-large diameter, three is complex structures of large type drill, and price of complete machine is expensive.The propelling rig used in such as subway engineering is exactly like this.
at present, although there is super large caliber rig to occur, its structure and operating principle are, it is by rotating pivoted frame structure, bore pick header structure, the part such as suction structure and revolving joint composition, during operation, first drive and rotate drilling cramp rotation, while the large diameter of rotation pivoted frame is rotated, it rotates brill pick header structure and suction structure that pivoted frame structure is installed, automatically own rotation excavates simultaneously, suction structure synchronization is followed brill pick header structure and is moved around to large diameter by minor diameter in track, carry out adsorbing and deslagging, but at present the concrete structure of super large caliber rig is not all well solved, to the solution of these structures at present or a very large difficult problem.
Summary of the invention
in order to solve in actual well drilled operation, the problems of the drilling rig existed, the invention provides a kind of super large caliber rig rotary joint structure, this rotary rig rotary joint structure is one of key structure of super large drilling well bore rig, this structure installment is on rotation drilling cramp top, its line seal and circuit devices are all fine, do not affect the rotation operation of bottom pivoted frame at all, do not affect the fixing of top total pipeline expansion coupling, the suction of the conducting of power supply and dregs all can straightwayly be carried out yet.
the technical solution adopted for the present invention to solve the technical problems is: this super large caliber rig rotary joint structure, comprise wear-resistant seal ring, top elasticity conveyance conduit, elasticity connects wire, upper circuit passage, total pipeline expansion coupling, brush ring, brushgear housing, brush head, fixing big nut, upper flanges, lower circuit passage, differential is fixed in bottom, drilling cramp rotates pipe, conical bearing, lower elastic conveyance conduit, elasticity conveyance conduit joint, two narrow short flange, two narrow regular way orchid, lower swivel mechanism on super large caliber rotary rig, super large caliber rotary rig rotary drilling shelf structure, super large caliber rotary rig rotates drilling cramp drive mechanism, super large caliber rotary rig rotates suction mechanism, super large caliber rotary rig rotary excavator head mechanism, this super large caliber rig rotary joint structure, has one to be with the total pipeline expansion coupling of upper flanges, the top that this total pipeline expansion coupling extends by two narrow short flange, fixed cross support, electric-controlled hydraulic cylinder, stretch out joint and be fixedly connected with cement circle, the upper flanges that the flange of described total pipeline expansion coupling rotates pipe with the drilling cramp of bottom is fixedly connected with, rotate in pipe at drilling cramp, the flexible lower elastic conveyance conduit of band and elasticity conveyance conduit joint are installed, this elasticity conveyance conduit joint is a tapering shape pipe, and its tapering shape pipe border is provided with wear-resistant seal ring, lower circuit passage is installed around lower elastic conveyance conduit, there is an elastic brush seat being with inside pressure the upper end of this lower circuit passage, brushgear housing is provided with elastic brush head, corresponding brushgear housing and elasticity conveyance conduit joint, in the total pipeline expansion coupling on top, be separately installed with the brush ring on corresponding top elasticity conveyance conduit bell and bell outer circle wall, inner and the outside brush ring correspondence of bell is connected to the brush head on the elasticity conveyance conduit joint of bottom and brushgear housing, thus solve sealing and the electrical connection problem of upper and lower conveyance conduit, top elasticity conveyance conduit and upper circuit passage all have horizontal top differential to fix and are connected on total pipeline expansion coupling tube wall, lower circuit passage and lower elastic conveyance conduit are fixed differential by the bottom of transverse direction and are fixed and be connected to drilling cramp and rotate on tube wall, this drilling cramp rotates tube end and is threaded, respectively connected fixing big nut and conical bearing from top to bottom, the outer race of fixing big nut and conical bearing is filled with upper flanges.
the upper end of lower circuit passage, the brushgear housing of hinge-connection " L " shape, install one at interlinkage spindle place and there is the little spring that elasticity opens dynamics, one end of little spring is connected to the bottom of brushgear housing, the other end of little spring is connected on lower circuit passage, shape brushgear housing one outwardly power that little spring gives " L ", when top elasticity conveyance conduit bell and cone shaped elastic conveyance conduit joint are fitted and connected, the bottom pushing down " L " shape brushgear housing below of top elasticity conveyance conduit bell, brushgear housing gets on to the pressing of bell outer wall, brush head on brushgear housing namely with the brush ring close contact On current on bell outer wall, thus solve the powerup issue of lower rotational system.
the brush ring at elasticity conveyance conduit bell outer wall place, top is connected with elasticity and connects wire, this elasticity connects the wire other end and upper circuit expanding channels, it is connected with the supplying electricity and power distribution device on upper base by upper circuit passage, it is helical form that this elasticity connects wire, and it can stretch or shrink when top and the bottom circuit path moves up and down.
elasticity conveyance conduit in top described in this at top conveyance conduit bottom, in the drawings, it is a undulatory structure of band, be formed with the crest of ripple projection, be a sunk low ebb of ripple between adjacent crest, the material of this tube wall is a kind of flexible rubber-plastics material, is filled with hard annulus in the crest tube wall of projection wherein, this annulus plays the effect supporting tube wall, makes it not easily subside; The combination of this kind of structure and material, and make this pipeline have a kind of elasticity as spring, enable it shrink and extend; This lower elastic conveyance conduit is also same elastic construction, therefore, when bottom drilling cramp rotate pipe withdraw up and down, follow up time, there is flexible upper and lower displacement, also namely can while the state that is tightly connected bonded to each other, the change that synchronous completing withdraws or follow up.
in the top total pipeline of upper flanges, there is one section of total pipeline expansion coupling, this total pipeline expansion coupling upper end is a tubular structure with outer lug ring, this outer lug ring structure is peripheral, be slidably installed one two the regular way orchid that narrows, this two narrow regular way orchid be fixedly connected with the total pipeline on top by bolt; When the drilling cramp of bottom rotate pipe upwards withdraw or the follow-up of operation downwards time, what this total pipeline expansion coupling namely can be synchronous and then completes the change in displacement withdrawing or follow up; The periphery of this total pipeline expansion coupling evenly has the keyway of up/down perforation; Narrow in the inwall of short flange two, also the keyway of up/down perforation is had, when the two short flanges that narrow are fixedly mounted on fixed cross support, this total pipeline expansion coupling and two narrows after short flange is slidably matched and assembles, be assemblied in two keyways narrowed in short flange and total pipeline expansion coupling by slide key, namely total pipeline expansion coupling can be made to slide up and down along the two fixing slide keys narrowed in short flange, and can not rotate, thus solve withdrawing or following up of total pipeline expansion coupling.
main operation principles of the present invention is, the ground on top is provided with power transmitting device and negative pressure slag absorbing slag-draining device, power transmitting device needs power supply and links up up and down, slag absorbing slag-draining device also needs pipeline and links up up and down, here difficult point is exactly the power transmitting device on top and slag absorbing slag-draining device is all fixing, and the excavation of bottom, follow-up, to withdraw and the device such as suction is all in large rotation, individual rotation, and the operation carried out under the situation moved up and down, so fastening devices, whirligig and the contact moved up and down in device design very important, the present invention just solves well and rotates pivoted frame structure, bore pick header structure, these concrete problems such as the contact point structure of suction structure and rotation.Concrete detailed construction and principle can references: super large caliber rig mining head structure, super large caliber rig discharging machine header structure, super large caliber rig rotary drilling shelf structure and super large caliber rig drive mechanism particular location in figure 3.
the invention has the beneficial effects as follows, the upper and lower rotary joint device of this super large caliber is one of key structure of super large drilling well bore rig, this structure is arranged on dexterously and rotates drilling cramp top, its line seal and circuit devices are good especially, do not affect the rotation operation of bottom pivoted frame at all, do not affect the fixing of top total pipeline expansion coupling, the suction of the conducting of power supply and dregs all can straightwayly be carried out yet.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the present invention is further described.
fig. 1: be the structural principle schematic diagram of super large caliber rig rotary joint structure.
fig. 2: be the installation site schematic diagram of super large caliber rig rotary joint structure.
fig. 3: the installation site schematic diagram of rotary joint structure in the overall structure of super large caliber rig.
fig. 4: be the elasticity conveyance conduit structural representation of super large caliber rig rotary joint structure.
fig. 1, 2, 3, in 4: 1. wear-resistant seal ring, 2. top elasticity conveyance conduit, 3. elasticity connects wire, 4. upper circuit passage, 5. total pipeline expansion coupling, 6. brush ring, 7. brushgear housing, 7-1. little spring, 8. brush head, 9. fixing big nut, 10. upper flanges, 11. lower circuit passages, differential is fixed in 12. bottoms, 13. drilling cramps rotate pipe, 14. conical bearings, 15. lower elastic conveyance conduits, 16. elasticity conveyance conduit joints, 17. cement circles, 18. stretch out joint, 19. electric-controlled hydraulic cylinders, 20. fixed cross supports, 21. liang of short flanges that narrow, 22. slide keys, 23. liang of regular way orchids that narrow, lower swivel mechanism on 24. super large caliber rigs, 25. super large caliber rig rotary drilling shelf structures, 26. super large caliber rigs rotate drilling cramp drive mechanism, 27. super large caliber rigs rotate suction mechanism, 28. super large caliber rig rotary excavator head mechanisms.
Detailed description of the invention
in the drawings, this super large caliber rig rotary joint structure, comprise wear-resistant seal ring 1, top elasticity conveyance conduit 2, elasticity connects wire 3, upper circuit passage 4, total pipeline expansion coupling 5, brush ring 6, brushgear housing 7, brush head 8, fixing big nut 9, upper flanges 10, lower circuit passage 11, differential 12 is fixed in bottom, drilling cramp rotates pipe 13, conical bearing 14, lower elastic conveyance conduit 15, elasticity conveyance conduit joint 16, two narrow short flange 21, two narrow regular way orchid 23, lower swivel mechanism 24 on super large caliber rotary rig, super large caliber rotary rig rotary drilling shelf structure 25, super large caliber rotary rig rotates drilling cramp drive mechanism 26, super large caliber rotary rig rotates suction mechanism 27, super large caliber rotary rig rotary excavator head mechanism 28, this super large caliber rig rotary joint structure, have one to be with the total pipeline expansion coupling 5 of upper flanges 10, the top that this total pipeline expansion coupling 5 extends by two narrow short flange 21, fixed cross support 20, electric-controlled hydraulic cylinder 19, stretch out joint 18 and be fixedly connected with cement circle 17, the upper flanges 10 that the flange of described total pipeline expansion coupling 5 rotates pipe 13 with the drilling cramp of bottom is fixedly connected with, rotate in pipe 13 at drilling cramp, the flexible lower elastic conveyance conduit 15 of band and elasticity conveyance conduit joint 16 are installed, this elasticity conveyance conduit joint 16 is a tapering shape pipe, and its tapering shape pipe border is provided with wear-resistant seal ring 1, lower circuit passage 11 is installed around lower elastic conveyance conduit 15, there is an elastic brush seat 7 being with inside pressure the upper end of this lower circuit passage 11, brushgear housing 7 is provided with elastic brush 8, corresponding brushgear housing 7 and elasticity conveyance conduit joint 16, in the total pipeline expansion coupling 5 on top, be separately installed with the brush ring 6 on corresponding top elasticity conveyance conduit 2 bell and bell outer circle wall, inner and outside brush ring 6 correspondence of bell is connected to the brush head 8 on the elasticity conveyance conduit joint 16 of bottom and brushgear housing 7, thus solve sealing and the electrical connection problem of upper and lower conveyance conduit, top elasticity conveyance conduit 2 and upper circuit passage 4 all have horizontal top differential to fix and are connected on total pipeline expansion coupling 5 tube wall, lower circuit passage 11 and lower elastic conveyance conduit 15 are fixed differential 12 by the bottom of transverse direction and are fixed and be connected to drilling cramp and rotate on pipe 13 tube wall, this drilling cramp rotates pipe 13 end and is threaded, respectively connected fixing big nut 9 and conical bearing 14 from top to bottom, the outer race of fixing big nut 9 and conical bearing 14 is filled with upper flanges 10.
in FIG, the upper end of lower circuit passage 11, the brushgear housing 7 of hinge-connection " L " shape, install one at interlinkage spindle place and there is the little spring 7-1 that elasticity opens dynamics, one end of little spring 7-1 is connected to the bottom of brushgear housing 7, the other end of little spring 7-1 is connected on lower circuit passage 11, little spring 7-1 gives " L " shape brushgear housing one outwardly power, when top elasticity conveyance conduit 2 bell and cone shaped elastic conveyance conduit joint 16 are fitted and connected, the bottom pushing down " L " shape brushgear housing 7 below of top elasticity conveyance conduit 2 bell, brushgear housing 7 gets on to the pressing of bell outer wall, brush head 8 on brushgear housing 7 namely with the brush ring 6 close contact On current on bell outer wall, thus solve the powerup issue of lower rotational system.
in FIG, the brush ring 6 at elasticity conveyance conduit 2 bell outer wall place, top is connected with elasticity and connects wire 3, this elasticity connects wire 3 other end and upper circuit expanding channels, it is connected with the supplying electricity and power distribution device on upper base by upper circuit passage 4, it is helical form that this elasticity connects wire 3, and it can stretch or shrink when top and the bottom circuit path moves up and down.
top elasticity conveyance conduit 2 described in this at top conveyance conduit bottom, in the diagram, it is a undulatory structure of band, be formed with the crest 2-2 of ripple projection, be a sunk low ebb 2-3 of ripple between adjacent crest, the material of this tube wall is a kind of flexible rubber-plastics material, is filled with hard annulus 2-1 in the crest tube wall of projection wherein, this annulus 2-1 plays the effect supporting tube wall, makes it not easily subside; The combination of this kind of structure and material, and make this pipeline have a kind of elasticity as spring, enable it shrink and extend; This lower elastic conveyance conduit 15 is also same elastic construction, therefore, when bottom drilling cramp rotate pipe about 13 withdraw, follow up time, there is flexible upper and lower displacement, also namely can while the state that is tightly connected bonded to each other, the change that synchronous completing withdraws or follow up.
at Fig. 1, in 2, in the top total pipeline of upper flanges 10, there is one section of total pipeline expansion coupling 5, this total pipeline expansion coupling 5 upper end is a tubular structure with outer lug ring, this outer lug ring structure is peripheral, and be slidably installed one two the regular way orchid 23 that narrows, and this two regular way orchid 23 that narrows is fixedly connected with the total pipeline on top by bolt; When the drilling cramp of bottom rotate pipe 13 upwards withdraw or the follow-up of operation downwards time, what this total pipeline expansion coupling 5 namely can be synchronous and then completes the change in displacement withdrawing or follow up; The periphery of this total pipeline expansion coupling 5 evenly has the keyway of up/down perforation; Narrow in the inwall of short flange 21 two, also the keyway of up/down perforation is had, when the two short flanges 21 that narrow are fixedly mounted on fixed cross support 20, this total pipeline expansion coupling 5 and two narrows after short flange 21 is slidably matched and assembles, be assemblied in two keyways narrowed in short flange 21 and total pipeline expansion coupling 5 by slide key 22, namely total pipeline expansion coupling 5 can be made to slide up and down along the two fixing slide keys 22 narrowed in short flange 21, and can not move, thus solve withdrawing or following up of total pipeline expansion coupling 5.
at Fig. 1, 2, 3, in 4, main operation principles of the present invention is, the ground on top is provided with power transmitting device and negative pressure slag absorbing slag-draining device, power transmitting device needs power supply and links up up and down, slag absorbing slag-draining device also needs pipeline and links up up and down, here difficult point is exactly the power transmitting device on top and slag absorbing slag-draining device is all fixing, and the excavation of bottom, follow-up, to withdraw and the device such as suction is all in large rotation, individual rotation, and the operation carried out under the situation moved up and down, so fastening devices, whirligig and the contact moved up and down in device design very important, the present invention just solves well and rotates pivoted frame structure, bore pick header structure, these concrete problems such as the contact point structure of suction structure and rotation.Concrete detailed construction and principle can references: super large caliber rig mining head structure 28, super large caliber rig discharging machine header structure 27, super large caliber rig rotary drilling shelf structure 25 and super large caliber rig drive mechanism 26 particular location in figure 3.
Claims (5)
1.
super large caliber rig rotary joint structure, comprise wear-resistant seal ring (1), top elasticity conveyance conduit (2), elasticity connects wire (3), upper circuit passage (4), total pipeline expansion coupling (5), brush ring (6), brushgear housing (7), brush head (8), fixing big nut (9), upper flanges (10), lower circuit passage (11), differential (12) is fixed in bottom, drilling cramp rotates pipe (13), conical bearing (14), lower elastic conveyance conduit (15), elasticity conveyance conduit joint (16), two narrow short flange (21), two narrow regular way orchid (23), lower swivel mechanism (24) on super large caliber rotary rig, super large caliber rotary rig rotary drilling shelf structure (25), super large caliber rotary rig rotates drilling cramp drive mechanism (26), super large caliber rotary rig rotates suction mechanism (27), super large caliber rotary rig rotary excavator head mechanism (28), it is characterized in that: this super large caliber rig rotary joint structure, have a total pipeline expansion coupling (5) being with upper flanges (10), the top that this total pipeline expansion coupling (5) extends by two narrow short flange (21), fixed cross support (20), electric-controlled hydraulic cylinder (19), stretch out joint (18) and be fixedly connected with cement circle (17), the described flange of total pipeline expansion coupling (5) and the drilling cramp of bottom rotate the upper flanges (10) of managing (13) and are fixedly connected with, rotate in pipe (13) at drilling cramp, the flexible lower elastic conveyance conduit (15) of band and elasticity conveyance conduit joint (16) are installed, this elasticity conveyance conduit joint (16) is a tapering shape pipe, and its tapering shape pipe border is provided with wear-resistant seal ring (1), lower circuit passage (11) is installed around lower elastic conveyance conduit (15), there is an elastic brush seat (7) being with inside pressure the upper end of this lower circuit passage (11), brushgear housing (7) is provided with elastic brush head (8), corresponding brushgear housing (7) and elasticity conveyance conduit joint (16), in the total pipeline expansion coupling (5) on top, be separately installed with the brush ring (6) on corresponding top elasticity conveyance conduit (2) bell and bell outer circle wall, inner and outside brush ring (6) correspondence of bell is connected to the brush head (8) on the elasticity conveyance conduit joint (16) of bottom and brushgear housing (7), thus solve sealing and the electrical connection problem of upper and lower conveyance conduit, top elasticity conveyance conduit (2) and upper circuit passage (4) all have horizontal top differential to fix and are connected on total pipeline expansion coupling (5) tube wall, lower circuit passage (11) and lower elastic conveyance conduit (15) are fixed differential (12) by the bottom of transverse direction and are fixed and be connected to drilling cramp and rotate and manage on (13) tube wall, this drilling cramp rotates pipe (13) end and is threaded, respectively connected fixing big nut (9) and conical bearing (14) from top to bottom, the outer race of fixing big nut (9) and conical bearing (14) is filled with upper flanges (10).
2.
super large caliber rig rotary joint structure according to claim 1, it is characterized in that: the upper end of lower circuit passage (11), the brushgear housing (7) of hinge-connection " L " shape, install one at hinge spindle place and there is the little spring (7-1) that elasticity opens dynamics, one end of little spring (7-1) is connected to the bottom of brushgear housing (7), and the other end of little spring (7-1) is connected on lower circuit passage (11).
3.
super large caliber rig rotary joint structure according to claim 1, it is characterized in that: the brush ring (6) at elasticity conveyance conduit (2) bell outer wall place, top is connected with elasticity and connects wire (3), this elasticity connects wire (3) other end and upper circuit expanding channels, it is connected with the supplying electricity and power distribution device of upper base by upper circuit passage (4), and it is helical form that this elasticity connects wire (3).
4.
super large caliber rig rotary joint structure according to claim 1, it is characterized in that: top elasticity conveyance conduit (2) described in this at top conveyance conduit bottom, it is a undulatory structure of band, be formed with the crest (2-2) of ripple projection, it is a sunk low ebb of ripple (2-3) between adjacent crest, the material of this tube wall is a kind of flexible rubber-plastics material, is filled with hard annulus (2-1) in the crest tube wall of projection wherein.
5.
super large caliber rig rotary joint structure according to claim 1, it is characterized in that: in the top total pipeline of upper flanges (10), there is one section of total pipeline expansion coupling (5), this total pipeline expansion coupling (5) upper end is a tubular structure with inside and outside protruding ring, this outer lug ring structure is peripheral, be slidably installed one two the regular way orchid (23) that narrows, and this two regular way orchid (23) that narrows is fixedly connected with total pipeline by bolt; The periphery of this total pipeline expansion coupling (5) evenly has the keyway of up/down perforation; Narrow in the inwall of short flange (21) two, also have the keyway of up/down perforation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410337936.3A CN104074471B (en) | 2014-07-16 | 2014-07-16 | Super large caliber rig rotary joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410337936.3A CN104074471B (en) | 2014-07-16 | 2014-07-16 | Super large caliber rig rotary joint structure |
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| Publication Number | Publication Date |
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| CN104074471A CN104074471A (en) | 2014-10-01 |
| CN104074471B true CN104074471B (en) | 2016-04-06 |
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| CN201410337936.3A Expired - Fee Related CN104074471B (en) | 2014-07-16 | 2014-07-16 | Super large caliber rig rotary joint structure |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE449015B (en) * | 1985-10-16 | 1987-03-30 | Atlas Copco Ab | Discharge appts. for drilling waste |
| DE10054659A1 (en) * | 2000-11-03 | 2002-05-08 | Bohr Und Vortriebstechnik Cell | Pipe laying machine, includes boring and inner drilling tubes with screw conveyors for rotary and percussion drilling |
| CA2375754A1 (en) * | 2001-12-06 | 2002-08-10 | Corion Diamond Products Ltd. | Drilling system suitable for coring and other purposes |
| CN200985748Y (en) * | 2006-12-21 | 2007-12-05 | 新疆石油管理局钻井工艺研究院 | Rotetable type casing tube flexible joint |
| CN101203656A (en) * | 2005-06-10 | 2008-06-18 | 地质力学水和环境技术公司 | Dth-hammer drilling device and overburden drilling method |
| CN203961817U (en) * | 2014-07-16 | 2014-11-26 | 徐州工程学院 | Super large caliber rig rotary joint structure |
-
2014
- 2014-07-16 CN CN201410337936.3A patent/CN104074471B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE449015B (en) * | 1985-10-16 | 1987-03-30 | Atlas Copco Ab | Discharge appts. for drilling waste |
| DE10054659A1 (en) * | 2000-11-03 | 2002-05-08 | Bohr Und Vortriebstechnik Cell | Pipe laying machine, includes boring and inner drilling tubes with screw conveyors for rotary and percussion drilling |
| CA2375754A1 (en) * | 2001-12-06 | 2002-08-10 | Corion Diamond Products Ltd. | Drilling system suitable for coring and other purposes |
| CN101203656A (en) * | 2005-06-10 | 2008-06-18 | 地质力学水和环境技术公司 | Dth-hammer drilling device and overburden drilling method |
| CN200985748Y (en) * | 2006-12-21 | 2007-12-05 | 新疆石油管理局钻井工艺研究院 | Rotetable type casing tube flexible joint |
| CN203961817U (en) * | 2014-07-16 | 2014-11-26 | 徐州工程学院 | Super large caliber rig rotary joint structure |
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| CN104074471A (en) | 2014-10-01 |
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Inventor after: Li Fuxing Inventor before: Li Fuxing Inventor before: Chen Liang Inventor before: Li Peilin Inventor before: Li Chuanqi |
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Granted publication date: 20160406 Termination date: 20170716 |