CN107002467A - Drill string drilling rod with guiding shoulder - Google Patents
Drill string drilling rod with guiding shoulder Download PDFInfo
- Publication number
- CN107002467A CN107002467A CN201580063020.6A CN201580063020A CN107002467A CN 107002467 A CN107002467 A CN 107002467A CN 201580063020 A CN201580063020 A CN 201580063020A CN 107002467 A CN107002467 A CN 107002467A
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- China
- Prior art keywords
- drilling rod
- shoulder
- external diameter
- length
- sleeve pipe
- Prior art date
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- 238000005553 drilling Methods 0.000 title claims abstract description 111
- 230000004323 axial length Effects 0.000 claims abstract description 44
- 238000009434 installation Methods 0.000 claims description 21
- 230000007704 transition Effects 0.000 claims description 14
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 description 9
- 239000011435 rock Substances 0.000 description 6
- 241001074085 Scophthalmus aquosus Species 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 230000010339 dilation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 208000028780 ocular motility disease Diseases 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000004080 punching Methods 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/16—Drill collars
-
- 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
- E21B1/00—Percussion drilling
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
- E21B17/0426—Threaded with a threaded cylindrical portion, e.g. for percussion rods
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
A kind of drill string drilling rod (100) and a kind of drill string component including drilling rod (100) and drill bit (112), wherein, the drilling rod includes threaded male form end (103) and female end (102).Axially extending shoulder (110) is arranged on the male form end, and the external diameter (D including than the shoulderA) big axial length (LA), to provide shoulder drive-type drilling rod, it shows the guiding function improved, to realize more straight drilling and more preferable perforating.
Description
Technical field
The present invention relates to a kind of drill string drilling rod and drill rod assemblies, the drill string drilling rod and drill rod assemblies to formed have by
The part of the drill string of the separated male form end of main length thereof and female end, and be related to especially but not exclusively
A kind of drilling rod, the drilling rod has the shoulder of axial elongation, and the shoulder is configured to promote the straight line of the drill bit end of drill string to bore
Enter and extract.
Background technology
Percussion drilling is connected in one for end-to-end via the interconnection by pin-end and female threaded pipe end
The drill string drilling rods of multiple elongations produce long drilling.The perfect technology passes through the rock by the end installed in drill string
Aiguille carrys out fractured rock to the rock transmission hammer impacts at the bottom of drilling.Typically, the energy needed for fractured rock by
Hydraulic drive piston generate, hydraulic drive piston contact drill string end (via shank adapter), with produce stress (or punching
Hit) ripple, stress wave propagated through drill string and be finally reached floor rocks layer.
Conventional pin thread connector and female threaded coupling refer to US 4,332,502, US 4,398,756, US 1,
926,925、US 5,169,183、EP 1705415、GB 2321073、US 4,076,436、US 6,030,004、CA
2634557 and US 4,687,368.
When the pin-end and female threaded pipe end of adjacent drill pipes are linked up to form drill string, joint is during creeping into
It is generally subjected to bending force.This kind of moment of flexure can make connector tired and cause the damage in the threaded portion of joint.In addition, also existing
The drill bit for being attached to nethermost drilling rod is subjected to lateral run-out and the risk of card in the borehole when extracting drill string in drilling.
Using conventional arrangement, also there is the problem of drill bit deviates during initial bore hole (commonly referred to as perforating).Have attempted to
Cross by " connector " between drill bit and nethermost drilling rod such issues that be interconnected to solve.Such connection
Device generally than drilling rod more rigidity and be intended to it is counter-bending so that drill bit is advanced faster more straight during creeping into.Example it is attached
Plus guiding connector refers to WO 00/65192, US 4,874,045, EP 0192622, CA 2550801 and US 2002/
0050362.However, conventional and additional intermediate connector existing defects for several reasons.Particularly, this kind of adapter
Dislocation occurs in use of common occurrence.Further, since including additional threaded connection, the effect of shock motion to drill bit
Rate has declined, and the stress in whole drill string can generally increase.Accordingly, it would be desirable to overcome the drilling rod and drilling rod group of these problems
Part.
The content of the invention
It is an object of the present invention to provide a kind of drilling rod that can be connected to adjacent drill pipes and being rushed by shoulder drive-type
Hit drilling system and show the improved drill bit of guiding function.Particularly, it is an object of the present invention to provide a kind of drilling rod,
It is provided with male form end and female end, wherein, the male form end is configured to be formed the extension of the drill bit, uses
With the perforating realized more straight drilling faster and particularly improved.Another specific purposes of the present invention are, prevent or reduce
The drill bit possibility of card in the borehole when extracting drill string.
Above-mentioned purpose realizes that the drilling rod has the main length portion provided with male form end and female end by a kind of drilling rod
Point, wherein, male form end is provided with axially extending guiding collar or shoulder.The shoulder of elongation is formed as the footpath of main length thereof
To enlarging extension, to provide rigidity larger nipple part, it is suitable for the female end for being attached to adjacent drill pipes
The female screw shell of portion and particularly drill bit.The drilling rod of the present invention is also particularly well suited for creeping into relatively small drilling, its
It is typically sized to about below 54mm.
The guiding shoulder of the male form end of the drilling rod of the present invention includes the axial length bigger than the external diameter of shoulder.Namely
Say, guide shoulder relative to main length thereof radial outward dilations, and it is bigger in the shoulder drive-type drilling rod compared to routine
Apart from upper axially extending, so that forming the axially-extending portion of the elongation of drill bit.Especially, the external diameter of shoulder is equal or approximately equal to
The external diameter of the installation sleeve of the axially rear of drill bit, so that the shoulder of drilling rod and the rear portion of drill bit are interconnected, so as to carry
For the cylindrical part of single elongation, the external diameter of the cylindrical part of the elongation is more than the main length thereof of drilling rod.This construction
The shoulder drive characteristic for percussion drilling is effectively provided, and more rigid and potential deviation angle is than existing component more
Small system.Denotion for deviation angle in this specification, which includes drill bit, can rotate about the axis thereof the cutting head end of drill bit
And/or shoulder axially rearward-most position contact drilling be facing in a direction inwardly towards the angle that the position on surface is rotated.
There is provided a kind of drill string drilling rod to form the part of drill string, the brill according to the first aspect of the invention
Bar includes：The main length thereof of hollow elongated, it extends in the axial direction between male form end and female end；The male form end
Portion is included from the axially projecting sleeve pipe with threaded portion of shoulder, and the shoulder exists described sleeve pipe and the main length thereof
Separated on axial direction, the external diameter of the shoulder is more than the external diameter of the main length thereof；It is characterized in that：The institute of larger external diameter extension
The axial length for stating shoulder is more than the external diameter of the shoulder.
The shoulder construction in male form end of the present invention is applied to drilling rod, the commonly referred to as " guiding with DRILL-STRING SYSTEM
The third member of pipe " is contrasted, and wherein the guiding tube sets on the drill bit of drill string and is presented axially in drill bit and bored with end
Between bar.The drilling rod of the present invention is conducive to the guiding tube avoided additional need for, and this additional guiding tube is in use
It may misplace or damage, thus hinder lasting drilling.The present invention is conducive to provide improved drill bit applied to the arrangement of drilling rod
In drill hole into and out this is by via the multiple male form existed at each drilling rod in the drilling rod of interconnection
End obtains to improve the integral rigidity of drill string.
Preferably, the axial length of each elongation shoulder is less than the axial length of each main length thereof of each drilling rod.
Term " main length thereof " can be defined as shoulder farthest away from sleeve pipe an axial end and sleeve (in female end) most
Axial distance between one axial end of the end anchor ring away from female end.Bored that is, main length thereof corresponds to
Axial component of the bar between radially enlarged shoulder and radially enlarged female end.
Preferably, shoulder is included defined in such as between the axial inner ends and radially enlarged female sleeve of shoulder axially
Length, its for main length thereof axial length 5 to 40%, 5 to 30%, 5 to 20%, 5 to 15%, 7 to 13%, 8 to
13% or 9 to 12%.
Preferably, the external diameter of shoulder is the maximum outside diameter of drilling rod.Preferably, the external diameter of shoulder is slightly less than drill bit head most
Big external diameter, to assist to guide driven rotation during drill bit enters rock.
Preferably, maximum outside diameter of the drilling rod at shoulder is homogeneous on the axial length of shoulder or substantially homogeneous.This
The construction of sample be configured to it is consistent with the female cylindrical mounting sleeve of the axially rear at the axle posterior end for being arranged on drill bit, with
Just the shoulder after combining constitutes the homogeneous single cylindrical part of external diameter with drill holder.
Preferably, female end include sleeve part, it has female thread portion, to another drilling rod of drill string
The threaded portion of sleeve pipe is engaged, and the external diameter of sleeve part is more than the external diameter of main length thereof.Preferably, the external diameter of shoulder is equal to
Or it is substantially equal to the external diameter of sleeve part.However, according to other embodiments, the external diameter of female sleeve can be less than shoulder
External diameter.However, the equal construction of external diameter promotes drilling rod guiding function, to realize more straight drilling, and promote from drilling
Extract drill string.
Preferably, the annular end face of sleeve pipe from shoulder is axially extending, and the axial length of sleeve pipe is constructed such that shoulder
Annular end face can abut the annular end face of the female end of the adjacent drilling rod of drill string.Preferably, sleeve pipe is divided in the axial direction
Into represent sleeve pipe distal portion threaded portion and be located axially between end of thread part and the annular end face of shoulder
Unthreaded shank.Preferably, the external diameter of shank, should to reduce in the joint radial outward dilations with the annular end face of shoulder
Power concentrate and sleeve pipe relative to shoulder any transverse curvature.Alternatively, the axial length of sleeve pipe is less than or equal to shoulder
Axial length.
Alternatively, whole axial length of the external diameter of sleeve pipe along sleeve pipe is equal to or less than the external diameter of main length thereof.This
The construction of sample provides the annular end face at shoulder, and the annular end face is configured to abut the annular end face of drill bit, to realize
Expected shoulder contact connection construction.
Preferably, drilling rod includes extending axially through the endoporus of main length thereof and sleeve pipe, and the internal diameter of the endoporus is along master
Whole axial lengths of length thereof and sleeve pipe are homogeneous.Homogeneous internal diameter is provided to internally by Drill-pipe conveyed to brill
The expected control of the pressure of the rinse fluid art of head.
Preferably, the threaded portion of sleeve pipe includes at least one axially extending rib and at least one is axially extending
Spiral grooves, wherein, on the whole axial length of threaded portion, along radial position of the threaded portion in spine and groove
Radial position at external diameter be homogeneous.Preferably, threaded portion includes two axially extending spiral coils on sleeve pipe, it
Be configured to inside the installation sleeve of drill bit in the corresponding fillet of screw that sets and/or the inside female end of thread of adjacent drill pipes
Portion is engaged.
Alternatively, drilling rod can include the transition portion for being located axially at the joint of main length thereof and shoulder, wherein,
The external diameter of transition part office changes according at least one radius of curvature.Alternatively, the external diameter of transition part office is from main length thereof
Radially reduced to center section according to first curvature radius, and the external diameter from center section to shoulder according to torsion
Radius and it is radially enlarged.
There is provided a kind of drill rod assemblies to form the part of drill string, the component according to the second aspect of the invention
Including：According to drilling rod specifically described herein；Drill bit, it can be releasably attached to the male form end of drilling rod；Drill bit has axle
Cutting head and the installation sleeve of axially rear anteriorly, male form end of the installation sleeve to be attached to drilling rod；Wherein,
The external diameter of installation sleeve is equal or approximately equal to the external diameter of shoulder.
Preferably, the external diameter of installation sleeve is homogeneous on the axial length of installation sleeve or substantially homogeneous, installation set
Between the axial length of cylinder is limited at the axial direction of the rearmost end of drill bit and installation sleeve foremost, the external diameter of installation sleeve exists
Axially region increase foremost, to be engaged with cutting head formation.The installation sleeve of shoulder and drill bit limits single circle jointly
Cylindrical section, the cylindrical part has constant external diameter, and it is slightly less than the brill of the axially front positioned at installation sleeve and shoulder
The maximum outside diameter in head portion.Such construction is advantageously implemented the outer surface (area in the male form end of drilling rod of drilling rod and drill bit
At domain) and drilling the expecting pressure being facing in a direction inwardly towards between surface, to promote flushing material backward.
Alternatively, the axial length of shoulder is substantially equal to or less than the axial length of installation sleeve.Such construction reduces
Drill bit may horizontal (including perpendicular to longitudinal axis of drilling rod) skew deviation angle, to realize more straight drilling and
More preferably perforating.
Brief description of the drawings
Now by only by way of example and referring to accompanying drawing describe the present invention embodiment, wherein：
Fig. 1 is the cross-sectional view of the drill string drilling rod for being attached to drill hammer of the embodiment according to the present invention；
Fig. 2 is Fig. 1 drilling rod and the cross-sectional view of drill bit assembly；
Fig. 3 is the perspective view of the male form end of Fig. 2 drilling rod；
Fig. 4 is another perspective view of the male form end of Fig. 2 drilling rod；
Fig. 5 is the perspective view of the male form end of the Fig. 2 coupled with Fig. 1 and Fig. 2 drill bit drilling rod；
Fig. 6 is Fig. 5 male form end and the cross section of drill bit.
Embodiment
Referring to Figures 1 and 2, sinker bar 100 includes axially extending main length thereof 101, and it is in first end with big
Body is terminated as the male form end shown in reference 103 and on the second opposite end with generally by the institute of reference 102
The female end shown is terminated.Drilling rod 100 can with adjacent drilling rod is end-to-end couples, to constitute drill string.Male form end 103 includes
Shoulder 110, it is projected radially outwardly relative to main length thereof 101, and the cylinder by shape to extend on axial distance
Part, the axial distance is the partial-length of main length thereof 101.Similarly, female end 102 includes cylindrical sleeve portion
111, it is approximately equal to the length to the axial length of shoulder 110.According to embodiment, shoulder 110 and female sleeve 111 it is outer
Footpath is roughly equal.Corresponding transition portion 107 is in main length thereof 101 and corresponding shoulder 110 and main length thereof 101 and the moon
It is axially extending between jacket cylinder 111.Each transition portion 107 includes being slightly less than shoulder 110 and the axial direction of female sleeve 111 is long
The axial length of degree.In addition, as described in the further detail below of reference picture 4, the external diameter of each transition portion 107 is respectively less than main length
Spend the external diameter of part 101.
Fig. 1 illustrates drilling rod 100, the drilling rod 100 be releasably attached to conventional configurations generally by reference 112
Shown drill bit.Drill bit 112 includes axially most preceding drill bit head 105, and drill bit head 105 is mounted with multiple from the edge of head 105
The wear-resisting cutting button 106 protruded axially forward.Installation sleeve 104 is extended axially rearward from head 105, and including to hold
Receive male form end 103 male form portion internal thread cavity.Especially, reference picture 2, male form end 103 include sleeve pipe 204, its from
Shoulder 110 and particularly annular abutment surface 108 is protruded axially forward, the annular abutment surface 108 represent shoulder 110 most before
End.Abutment surface 108, which is oriented to contact surface 109 with the ring-shaped end of drill holder 104, to be in contact.According to specific configuration,
The axial length of sleeve pipe 204 is less than the corresponding axial length or depth of the cavity in drill holder 104, so that the brill of the present invention
Bar 100 is configured to shoulder contact drilling rod or shoulder drive-type drilling rod.Therefore, passed through by the shock wave produced by surface piston
Matching surface 108,109 and be transferred to drill bit 112 from drilling rod 101.Especially, reference picture 3 and Fig. 6, the ring-shaped end of sleeve pipe 204
Surface 303 and the innermost end portions 600 of the internal cavity in drill holder 104 are separated in the axial direction, to provide shoulder contact
Construction.As being shown specifically in Fig. 6, drilling rod 100 and drill bit 112 it is releasable fit through it is radially projecting at sleeve pipe 204
Screw 301,302 is realized with the cooperation of the radially projecting screw thread 601 being facing in a direction inwardly towards in surface of drill holder cavity.
Reference picture 2, the female end 102 of drilling rod 100 is included in the interior end face 202 from axially rear of sleeve 111 in axial direction
The inner chamber 200 of upper extension.The end face 202 of first drilling rod is configured to：It is linked together when multiple drilling rods 100 are end-to-end to be formed
During drill string, the shoulder abutment surface 108 of the male form end 103 of the second drilling rod is contacted.Screw 201 is arranged on sleeve cavity
200 are facing in a direction inwardly towards at surface, and are configured to the cooperation of casing threads 301,302 with adjacent drill pipes 100.Endoporus 203
Extend axially through drilling rod 100 and particularly extend to the annular end face 303 of sleeve pipe 204 in the axial direction from female cavity 200.
According to embodiment, the internal diameter of endoporus 203 is in its whole axial direction between male form end 103 and female end 102
Generally it is homogeneous in length.
Reference picture 3, sleeve pipe 204 is axially projecting from annular abutment surface 108, and the annular abutment surface 108 is generallyperpendicular
Cylindrical outer surface at shoulder 110.Sleeve pipe 204 can be considered as is divided into threaded portion 301,302 and in axle in the axial direction
It is located at the unthreaded shank 300 between threaded portion 301,302 and shoulder 110 upwards.Shank 300 with annular abutment surface
Relative to the radial outward dilations of longitudinal axis 305 of drilling rod 100 at 108 engagement 304, so that shank 300 engages 304 in shoulder
The outer surface at place increases according to certain curvature radius.
The threaded portion of sleeve pipe 204 includes a pair of ribs 302, a pair of ribs 302 be limited to shank 300 with
Axially extending middle groove 301 between sleeve pipe annular end face 303.Reference picture 4, including shank 300 and threaded portion 301,302
Sleeve pipe 204 axial length LBLess than the axial length L of shoulder 110A.Shoulder length LAAnnular is limited in the axial direction to support
Connect surface 108 (with the perpendicular alignmnet of axis 305) and shoulder 110 it is axially rearward-most between, the external diameter of drilling rod 100 at this axially most
At rear portion reduce, and the external diameter from annular abutment face 108 on direction axially backward it is no longer homogeneous.Especially, shoulder 110
Rear end terminate at transition portion 107.According to embodiment, axial length LBCan be in axial length LA60 to 100%
Or in the range of 75 to 85%.
Part 107, which can be considered as, is divided into three axial regions, including define main length thereof 101 first area 401,
In defining the second area 402 of the rear end of shoulder 110 and being located axially between first area 401 and second area 402
Between region 400.The external diameter of drilling rod 100 is radially reduced (relative to master at First Transition region 401 according to first curvature radius
Length thereof 101).The external diameter of drilling rod 100 is generally homogeneous on intermediate region 400, is then pressed at second area 402
It is radially enlarged according to second curvature radius.Therefore, the external diameter of drilling rod 100 is formed to be located axially at transition portion 107
Axial sipes or axial nick portion between main length thereof 101 and shoulder 110.The transition region 304 of radially bending makes sleeve pipe 204
Minimized with the stress concentration of the joint of shoulder 110.In addition, the radius of curvature at the second transitional region 402 makes shoulder
Minimized at 110 axial rearward end and with the stress concentration of the joint of main length thereof 101.
Shoulder 110 includes external diameter or outer dia DA, it is substantially equal to the outer of the female sleeve 111 at female end 102
Footpath.Outer diameter DARepresent maximum outside diameter part of the drilling rod 100 along its whole axial length.By DCRepresent sleeve pipe 204 corresponding to each
The respective outer diameters of the threaded portion office of radial position at the ridge peak of rib 302, now DCLess than DA.Especially, according to tool
Body embodiment, DCCan be in DA60 to 100% or 75 to 85% in the range of.In addition, the outside of main length thereof 101
Diameter DBLess than the outer diameter D of shoulder 110A, and according to embodiment, DBIt is DA70 to 100% or 85 to 99%.
Pass through the axial length L of shoulderAMore than the outer diameter D of shoulderAThere is provided the drilling guiding function and speed of raising
The ability that the drilling of quickening more directly drills.When drilling rod 100 couples as illustrated in figures 1 and 2 with drill bit 112, shoulder 110 has
Effect ground provides the axially-extending portion of drill holder 104.Especially, reference picture 5, the outer diameter D of drill holder 104EEssentially equal to
The outer diameter D of shoulder 110A, so that the two cylindrical parts 104,110 cooperate to define drill bit head 105 and transition portion 107
Between the single cylinder that extends, the cylinder has homogeneous diameter D on its whole axial lengthA、DE, the whole axial direction
Length incorporates LAWith the axial length L of drill holderC.Therefore, the axial length L of shoulder is metAMore than drill holder 104
Outer diameter DE。
Shoulder 110 effectively provides the linear extension of drill holder 104, and this reduces drill bit 112 in its insertion drilling
Or possible deviation angle during extraction drilling with the male form end 103 of drilling rod 100.That is, in the region of drill bit 112
Any bending or lateral run-out in place, drilling perpendicular to axis 305 are reduced, and are effectively limited to shoulder 110
Axial length L A, and especially it is constrained to the axial rearward end of shoulder 110 contacted with the inner surface drilled.According to specific implementation
Mode, the axial length L of drill holder 104CBe limited at circular contact surface 109 (at the axial rearward end of drill bit 112) with
Axially between most preceding sleeve ends 500, outer diameter DEIncrease at this axially most preceding sleeve ends, it is radially expanded to be formed
Drill bit head 105.According to embodiment, the axial length L of drill holderCCan shoulder axial length LA60
To in the range of 100% or 75 to 95%.
Claims (15)
1. a kind of drill string drilling rod (100) to form the part of drill string, the drilling rod (100) includes：
The main length thereof (101) of hollow elongated, the main length thereof male form end (103) and female end (102) it
Between axially extend；
The male form end (103) includes the sleeve pipe (204) with threaded portion protruded in the axial direction from shoulder (110), institute
State shoulder (110) to separate described sleeve pipe (204) in the axial direction with the main length thereof (101), outside the shoulder (110)
Footpath (DA) it is more than the external diameter (D of the main length thereof (101)B)；
It is characterized in that：
Larger external diameter (DA) extension the shoulder (110) axial length (LA) it is more than the external diameter (D of the shoulder (110)A)。
2. drilling rod according to claim 1, wherein, the external diameter (L of the shoulder (110)A) be the drilling rod (100) most
Big external diameter.
3. drilling rod according to claim 2, wherein, maximum outside diameter of the drilling rod (100) at the shoulder (110) place
(LA) in the axial length (L of the shoulder (110)A) on be homogeneous, it is or substantially homogeneous.
4. the drilling rod according to any preceding claims, wherein, the female end (102) includes sleeve part (111),
The sleeve part has female thread portion, and the female thread portion is to the institute with another drilling rod (100) of the drill string
The threaded portion for stating sleeve pipe (204) is engaged, and the external diameter of the sleeve part (111) is more than the main length thereof
(101) external diameter (DB)。
5. drilling rod according to claim 4, wherein, the external diameter (D of the shoulder (110)A) it is equal or approximately equal to the set
The external diameter of cylinder part (111).
6. the drilling rod according to any preceding claims, wherein, annular of the described sleeve pipe (204) from the shoulder (110)
End face (108) extends in the axial direction, the axial length (L of described sleeve pipeB) it is constructed such that the ring of the shoulder (110)
Shape end face (108) can abut the annular end face (202) of the female end (102) of the adjacent drilling rod (100) of the drill string.
7. the drilling rod according to any preceding claims, wherein, the axial length (L of described sleeve pipe (204)B) be less than or wait
In the axial length (L of the shoulder (110)A)。
8. the drilling rod according to any preceding claims, wherein, the external diameter (D of described sleeve pipe (204)C) along described sleeve pipe
Whole axial length (LB) it is equal to or less than the external diameter (D of the main length thereof (101)B)。
9. the drilling rod according to any preceding claims, including the main length thereof (101) is extended through in the axial direction
With the endoporus (203) of described sleeve pipe (204), the endoporus (203) is along the main length thereof (101) and described sleeve pipe
(204) whole axial length has homogeneous internal diameter.
10. the drilling rod according to any preceding claims, wherein, it is axially extending that the threaded portion includes at least one
Rib (302) and at least one axially extending spiral grooves (301), wherein in the whole axially long of the threaded portion
Spend (LB) on, along the threaded portion at the radial position of the spine (302) and the radial position of the groove (301)
External diameter (DC) it is homogeneous.
11. the drilling rod according to any preceding claims, including it is presented axially in the main length thereof (101) and institute
The transition portion (107) of the joint of shoulder (110) is stated,
Wherein, the external diameter at transition portion (107) place changes according at least one radius of curvature.
12. drilling rod according to claim 11, wherein, the external diameter at transition portion (107) place is from the main length
Degree part (101) diametrically reduces to center section (400) according to first curvature radius, and the external diameter is from the centre
Partly (400) diametrically increase to the shoulder (110) according to second curvature radius.
13. a kind of drill rod assemblies to form the part of drill string, the component includes：
Drilling rod (100) according to any preceding claims；
Drill bit (112), the drill bit can be releasably attached to the male form end (103) of the drilling rod (100)；
The drill bit (112) has the cutting head (105) of axially forward portion and the installation sleeve (104) of axially rear, described to install
The male form end (103) of the sleeve to be attached to the drilling rod (100)；
Wherein, the external diameter (D of the installation sleeve (104)E) it is equal or approximately equal to the external diameter (D of the shoulder (110)A)。
14. component according to claim 13, wherein, the external diameter (D of the installation sleeve (104)E) in the installation sleeve
(104) axial length (LC) on be homogeneous or substantially homogeneous, the axial length (L of the installation sleeve (104)C) be defined
It is described to install in the rearmost end (109) of the drill bit (112) and the axial direction of the installation sleeve (104) foremost between (500)
External diameter (the D of sleeve (104)E) increase at the axial direction foremost region of (500), to be formed with the cutting head (105)
Engagement.
15. component according to claim 14, wherein, the axial length (L of the shoulder (110)A) be substantially equal to or less than
Axial length (the L of the installation sleeve (104)C)。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP14194246.6 | 2014-11-21 | ||
| EP14194246.6A EP3023575A1 (en) | 2014-11-21 | 2014-11-21 | Drill string rod with shoulder |
| PCT/EP2015/076502 WO2016079013A1 (en) | 2014-11-21 | 2015-11-13 | Drill string rod with guidance shoulder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107002467A true CN107002467A (en) | 2017-08-01 |
Family
ID=51947195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580063020.6A Pending CN107002467A (en) | 2014-11-21 | 2015-11-13 | Drill string drilling rod with guiding shoulder |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US20170321496A1 (en) |
| EP (1) | EP3023575A1 (en) |
| CN (1) | CN107002467A (en) |
| AU (1) | AU2015348706A1 (en) |
| BR (1) | BR112017010617A2 (en) |
| CA (1) | CA2965868A1 (en) |
| CL (1) | CL2017001287A1 (en) |
| MX (1) | MX2017006589A (en) |
| PE (1) | PE20171231A1 (en) |
| RU (1) | RU2017121599A (en) |
| WO (1) | WO2016079013A1 (en) |
| ZA (1) | ZA201702931B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113454310A (en) * | 2019-03-18 | 2021-09-28 | 山特维克矿山工程机械工具股份有限公司 | Drill pole |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3095955A1 (en) | 2015-05-22 | 2016-11-23 | Sandvik Intellectual Property AB | Threaded coupling end for drill string component |
| US20180100356A1 (en) * | 2016-10-10 | 2018-04-12 | Padley & Venables Limited | Drill Rod |
| PT3536894T (en) | 2018-03-09 | 2020-11-19 | Sandvik Mining And Construction Tools Ab | Coupling for connecting downhole tubulars |
| CN109372443A (en) * | 2018-12-14 | 2019-02-22 | 无锡双马钻探工具有限公司 | A kind of coal mine stem |
| CN112888836B (en) | 2018-12-21 | 2023-10-13 | 哈利伯顿能源服务公司 | Single action buckle guide |
| WO2021069657A1 (en) * | 2019-10-11 | 2021-04-15 | Sandvik Mining And Construction Tools Ab | Shoulder protected drilling assembly |
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- 2015-11-13 CN CN201580063020.6A patent/CN107002467A/en active Pending
- 2015-11-13 MX MX2017006589A patent/MX2017006589A/en unknown
- 2015-11-13 PE PE2017000842A patent/PE20171231A1/en unknown
- 2015-11-13 AU AU2015348706A patent/AU2015348706A1/en not_active Abandoned
- 2015-11-13 US US15/527,778 patent/US20170321496A1/en not_active Abandoned
- 2015-11-13 CA CA2965868A patent/CA2965868A1/en not_active Abandoned
- 2015-11-13 RU RU2017121599A patent/RU2017121599A/en not_active Application Discontinuation
- 2015-11-13 BR BR112017010617A patent/BR112017010617A2/en not_active Application Discontinuation
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- 2017-05-18 CL CL2017001287A patent/CL2017001287A1/en unknown
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| CN113454310B (en) * | 2019-03-18 | 2023-11-28 | 山特维克矿山工程机械工具股份有限公司 | Drill stem |
Also Published As
| Publication number | Publication date |
|---|---|
| PE20171231A1 (en) | 2017-08-24 |
| CL2017001287A1 (en) | 2017-12-15 |
| MX2017006589A (en) | 2017-12-14 |
| CA2965868A1 (en) | 2016-05-26 |
| BR112017010617A2 (en) | 2018-02-14 |
| AU2015348706A1 (en) | 2017-05-18 |
| US20170321496A1 (en) | 2017-11-09 |
| RU2017121599A (en) | 2018-12-21 |
| WO2016079013A1 (en) | 2016-05-26 |
| RU2017121599A3 (en) | 2019-02-15 |
| ZA201702931B (en) | 2019-10-30 |
| EP3023575A1 (en) | 2016-05-25 |
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Application publication date: 20170801 |