US20160017668A1 - Precision polycrystalline diamond compact (pdc) pockets - Google Patents
Precision polycrystalline diamond compact (pdc) pockets Download PDFInfo
- Publication number
- US20160017668A1 US20160017668A1 US14/334,287 US201414334287A US2016017668A1 US 20160017668 A1 US20160017668 A1 US 20160017668A1 US 201414334287 A US201414334287 A US 201414334287A US 2016017668 A1 US2016017668 A1 US 2016017668A1
- Authority
- US
- United States
- Prior art keywords
- cutter pocket
- cutting surface
- registration device
- drill bit
- pdc
- 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.)
- Abandoned
Links
- 239000010432 diamond Substances 0.000 title claims description 13
- 229910003460 diamond Inorganic materials 0.000 title claims description 11
- 238000005520 cutting process Methods 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 238000005553 drilling Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005219 brazing Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 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
- 239000013078 crystal Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/56—Button-type inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
Definitions
- the invention is directed to methods and devices for manufacturing and refurbishing drill bits. Specifically, the invention is directed to methods and devices for inserting and replacing polycrystalline diamond compacts (PDCs) in drill bits.
- PDCs polycrystalline diamond compacts
- Drill bits typically comprise a solid metal or composite matrix-type metal body having a lower cutting face region and an upper shank region for connection to the bottom hole assembly of a drill string formed of jointed tubular members which are then rotated as a single unit by a rotary table or top drive drilling rig, or by a downhole motor selectively in combination with the surface equipment.
- rotary drill bits may be attached to a bottom hole assembly, including a downhole motor assembly, which is, in turn, connected to a drill string wherein the downhole motor assembly rotates the drill bit.
- the bit body may have one or more internal passages for introducing drilling fluid, or mud, to the cutting face of the drill bit to cool cutters provided thereon and to facilitate formation chip and formation fines removal.
- the sides of the drill bit typically may include a plurality of radially or laterally extending blades that have an outermost surface of a substantially constant diameter and generally parallel to the central longitudinal axis of the drill bit, commonly known as gage pads.
- gage pads generally contact the wall of the borehole being drilled in order to support and provide guidance to the drill bit as it advances along a desired cutting path or trajectory.
- Fixed cutter drill bits have no moving parts. Instead, drilling occurs due to percussion or rotation of the drill string.
- Fixed cutter bits can be polycrystalline diamond compact (PDC), grit hotpressed inserts (GHI), or other hard materials.
- PDCs are aggregate tiny, inexpensive, manmade diamonds into relatively large, intergrown masses of randomly oriented crystals that can be formed into useful shapes called diamond tables.
- Diamond tables are the part of a cutter that contacts a formation. Besides their hardness, PDC diamond tables efficiently bond with tungsten carbide materials that can be brazed (attached) to bit bodies. Diamonds, by themselves, will not bond together, nor can they be attached by brazing.
- the PDCs Under the high temperature, high stress, high impact, and/or corrosive conditions that the PDCs are subjected to, the PDCs often chip, crack, become loose, or otherwise degrade. While the PDCs may become less effective, the drill bit body may still be useable. Therefore, a process to remanufacture (or repair) drill bits has been developed over the years. The process involves removing broken or problematic PDCs and replacing them with new PDCs. However, during initial fabrication and replacement, the PDCs may not be properly centered or positioned. Therefore, there is a desire for a method and system to properly position PDCs in drill bits.
- the present invention overcomes the problems and disadvantages associated with current strategies and designs and provides new tools and methods of manufacturing and remanufacturing drill bits.
- One embodiment of the invention is directed to a method of manufacturing a wellbore drill bit.
- the method comprises providing a drill bit having at least one blade, providing at least one cutter pocket in each blade, providing a registration device in each cutter pocket, and positioning a cutting surface within each cutter pocket and in engagement with each the registration device therein.
- each cutting surface is a polycrystalline diamond compact (PDC).
- a registration device is milled into each cutter pocket.
- the registration device aligns the cutting surface within the cutter pocket.
- the alignment preferably comprises coaxially aligning the cutting surface with the cutter pocket.
- the alignment occurs automatically.
- each cutting surface is positioned within the associated cutter pocket with a constant peripheral brazed joint of between 0.004′′ and 0.006′′ between the cutting surface and the cutter pocket.
- the cutting surface is brazed into the cutter pocket.
- Another embodiment of the invention is directed to a method of remanufacturing a wellbore drill bit.
- the method comprises, providing a drill bit having at least one blade, providing at least one cutter pocket in each blade, providing a registration device in each cutter pocket, positioning a cutting surface within each cutter pocket and in engagement with each the registration device therein, distributing the drill bit for use, receiving the drill bit after use, assessing each cutting surface, removing damaged cutting surfaces, and replacing the damaged cutting surfaces with new cutting surfaces within each cutter pocket and in engagement with each the registration device therein.
- each cutting surface is a polycrystalline diamond compact (PDC).
- a registration device is milled into each cutter pocket.
- the registration device aligns the cutting surface within the cutter pocket.
- the alignment preferably comprises coaxially aligning the cutting surface with the cutter pocket.
- the alignment occurs automatically.
- each cutting surface is positioned within the associated cutter pocket with a constant peripheral brazed joint of between 0.004′′ and 0.006′′ between the cutting surface and the cutter pocket.
- the new cutting surfaces have the same tolerances as the replaced cutting surfaces.
- the step of removing damaged cutting surfaces occurs without damaging the registration devices.
- the use is preferably drilling a wellbore.
- Another embodiment of the invention is directed to wellbore drill bits manufactured by the methods disclosed herein.
- FIG. 1 is a schematic depicting the existing process of inserting PDCs into a drill bit.
- FIG. 2 is a schematic depicting the inventive method of inserting PDCs into a drill bit.
- FIG. 1 depicts the current method of installing and replacing polycrystalline diamond compacts (PDCs) in drill bits. While the invention is described with reference to PDCs and drill bits, the cutting surfaces can be grit hotpressed inserts (GHIs), aluminum oxide, silicon carbide, cubic boron nitride or another material with a high
- Young's Modulus and the housing can be a router or another drilling, grinding, or cutting device.
- the cutter pocket's interior dimensions must be larger than the PDC's exterior dimensions.
- This gap 115 allows for the brazing material (e.g. molten silver solder) to be inserted between the PDC 110 and cutter pocket 105 to couple the PDC 110 to the drill bit 120 .
- the gap 115 can range between, for example, no gap at all (as shown in dashed lines 125 ) and a 0.012′′ gap (as shown in dotted lines 130 ).
- the variation in the size 135 of the gap 115 can cause the PDC 110 to be seated improperly. Such variations can cause the PDC 110 not to extend the proper distance proud of the drill bit 120 body, be off center, or improperly angled.
- the drill bit is heated to at or above 375° C. so that the damaged PDCs are easily removable. Once the PDCs are removed, the cutter pocket is conditioned by removing any excess material and sized to receive a new PDC.
- the new PDC is then placed in the cutter pocket and brazed to affix the PDC to the drill bit.
- the cutter pocket can become irregularly shaped, enlarged, or otherwise degraded.
- FIG. 2 depicts a schematic of an embodiment of the inventive method of positioning a PDC 210 in a cutter pocket 205 .
- a registration device 240 is added to the cutter pocket 205 prior to insertion of the PDC 210 .
- the registration device 240 preferably aligns or properly positions the PDC 210 relative to the cutter pocket 205 .
- the registration device 240 is machined directly into base material (for example the registration device can be milled, ground, or molded into the cutter pocket 205 ).
- the registration device 240 can be a rod, ball, hemisphere, triangular, a prism, or another shape.
- the registration device 240 may be affixed to the interior surface of the cutter pocket 205 .
- recesses can be machined to receive a registration device 240 or one or more registration devices 240 to be affixed to the interior surface of the cutter pocket 205 during manufacturing of the drill bit 220 .
- a registration device 240 can be steel, bronze, a PDC, or another material.
- the registration device(s) 240 can be affixed with adhesive, solder, brazing, a mechanical coupling, friction, or another fixation method.
- the PDC 210 is then placed into the cutter pocket 205 and into engagement with the registration device 240 .
- the registration device 240 automatically aligns the PDC 210 within the cutter pocket 205 such that the center of the PDC 210 is coaxial with the center of the cutter pocket 205 and the PDC 210 extends proud of the drill bit 220 the desired distance without the need for grinding the full diameter PDCs (gage).
- the registration device 240 allows the brazer to exert pressure on the PDC 210 without dislocating the PDC 210 from its ideal position.
- the registration device 240 preferably provides a constant peripheral brazed joint of between 0.004′′ and 0.006′′ between the PDC 210 and the cutter pocket 205 .
- any damaged PDCs 210 can be removed, preferably without damaging the registration device 240 and new PDCs 210 can preferably be inserted into the cutter pocket 205 and into engagement with the registration device 240 in the same manner as the original PDCs 210 .
- the new PDCs 210 have the same tolerances as the original PDCs 210 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
- 1. Field of the Invention
- The invention is directed to methods and devices for manufacturing and refurbishing drill bits. Specifically, the invention is directed to methods and devices for inserting and replacing polycrystalline diamond compacts (PDCs) in drill bits.
- 2. Background of the Invention
- Wellbore drilling is the process of drilling one or more holes into the ground for the extraction of water, brine, natural gas, petroleum, or other natural resources. One of the main components for wellbore drilling is the drill bit. Drill bits typically comprise a solid metal or composite matrix-type metal body having a lower cutting face region and an upper shank region for connection to the bottom hole assembly of a drill string formed of jointed tubular members which are then rotated as a single unit by a rotary table or top drive drilling rig, or by a downhole motor selectively in combination with the surface equipment. Alternatively, rotary drill bits may be attached to a bottom hole assembly, including a downhole motor assembly, which is, in turn, connected to a drill string wherein the downhole motor assembly rotates the drill bit. The bit body may have one or more internal passages for introducing drilling fluid, or mud, to the cutting face of the drill bit to cool cutters provided thereon and to facilitate formation chip and formation fines removal. The sides of the drill bit typically may include a plurality of radially or laterally extending blades that have an outermost surface of a substantially constant diameter and generally parallel to the central longitudinal axis of the drill bit, commonly known as gage pads. The gage pads generally contact the wall of the borehole being drilled in order to support and provide guidance to the drill bit as it advances along a desired cutting path or trajectory.
- Fixed cutter drill bits have no moving parts. Instead, drilling occurs due to percussion or rotation of the drill string. Fixed cutter bits can be polycrystalline diamond compact (PDC), grit hotpressed inserts (GHI), or other hard materials. PDCs are aggregate tiny, inexpensive, manmade diamonds into relatively large, intergrown masses of randomly oriented crystals that can be formed into useful shapes called diamond tables. Diamond tables are the part of a cutter that contacts a formation. Besides their hardness, PDC diamond tables efficiently bond with tungsten carbide materials that can be brazed (attached) to bit bodies. Diamonds, by themselves, will not bond together, nor can they be attached by brazing. Under the high temperature, high stress, high impact, and/or corrosive conditions that the PDCs are subjected to, the PDCs often chip, crack, become loose, or otherwise degrade. While the PDCs may become less effective, the drill bit body may still be useable. Therefore, a process to remanufacture (or repair) drill bits has been developed over the years. The process involves removing broken or problematic PDCs and replacing them with new PDCs. However, during initial fabrication and replacement, the PDCs may not be properly centered or positioned. Therefore, there is a desire for a method and system to properly position PDCs in drill bits.
- The present invention overcomes the problems and disadvantages associated with current strategies and designs and provides new tools and methods of manufacturing and remanufacturing drill bits.
- One embodiment of the invention is directed to a method of manufacturing a wellbore drill bit. The method comprises providing a drill bit having at least one blade, providing at least one cutter pocket in each blade, providing a registration device in each cutter pocket, and positioning a cutting surface within each cutter pocket and in engagement with each the registration device therein.
- Preferably, each cutting surface is a polycrystalline diamond compact (PDC). In a preferred embodiment, a registration device is milled into each cutter pocket. Preferably, the registration device aligns the cutting surface within the cutter pocket. The alignment preferably comprises coaxially aligning the cutting surface with the cutter pocket. Preferably, the alignment occurs automatically. In a preferred embodiment, each cutting surface is positioned within the associated cutter pocket with a constant peripheral brazed joint of between 0.004″ and 0.006″ between the cutting surface and the cutter pocket. Preferably, the cutting surface is brazed into the cutter pocket.
- Another embodiment of the invention is directed to a method of remanufacturing a wellbore drill bit. The method comprises, providing a drill bit having at least one blade, providing at least one cutter pocket in each blade, providing a registration device in each cutter pocket, positioning a cutting surface within each cutter pocket and in engagement with each the registration device therein, distributing the drill bit for use, receiving the drill bit after use, assessing each cutting surface, removing damaged cutting surfaces, and replacing the damaged cutting surfaces with new cutting surfaces within each cutter pocket and in engagement with each the registration device therein.
- Preferably each cutting surface is a polycrystalline diamond compact (PDC). In a preferred embodiment, a registration device is milled into each cutter pocket. Preferably, the registration device aligns the cutting surface within the cutter pocket. The alignment preferably comprises coaxially aligning the cutting surface with the cutter pocket. Preferably, the alignment occurs automatically. In a preferred embodiment, each cutting surface is positioned within the associated cutter pocket with a constant peripheral brazed joint of between 0.004″ and 0.006″ between the cutting surface and the cutter pocket. Preferably, the new cutting surfaces have the same tolerances as the replaced cutting surfaces. Preferably, the step of removing damaged cutting surfaces occurs without damaging the registration devices. The use is preferably drilling a wellbore.
- Another embodiment of the invention is directed to wellbore drill bits manufactured by the methods disclosed herein.
- Other embodiments and advantages of the invention are set forth in part in the description, which follows, and in part, may be obvious from this description, or may be learned from the practice of the invention.
- The invention is described in greater detail by way of example only and with reference to the attached drawing, in which:
-
FIG. 1 is a schematic depicting the existing process of inserting PDCs into a drill bit. -
FIG. 2 is a schematic depicting the inventive method of inserting PDCs into a drill bit. - As embodied and broadly described herein, the disclosures herein provide detailed embodiments of the invention. However, the disclosed embodiments are merely exemplary of the invention that may be embodied in various and alternative forms. Therefore, there is no intent that specific structural and functional details should be limiting, but rather the intention is that they provide a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention
-
FIG. 1 depicts the current method of installing and replacing polycrystalline diamond compacts (PDCs) in drill bits. While the invention is described with reference to PDCs and drill bits, the cutting surfaces can be grit hotpressed inserts (GHIs), aluminum oxide, silicon carbide, cubic boron nitride or another material with a high - Young's Modulus and the housing can be a router or another drilling, grinding, or cutting device.
- As can be seen in
FIG. 1 , in order for aPDC 110 to fit within a cutter pocket 105 (or cavity in the drill bit for the PDC 110), the cutter pocket's interior dimensions must be larger than the PDC's exterior dimensions. Ideally, there is between a 0.004″ and 0.006″gap 115 between the outer surface of thePDC 110 and the inner surface of the cutter pocket. Thisgap 115 allows for the brazing material (e.g. molten silver solder) to be inserted between thePDC 110 andcutter pocket 105 to couple thePDC 110 to thedrill bit 120. However, in practice, thegap 115 can range between, for example, no gap at all (as shown in dashed lines 125) and a 0.012″ gap (as shown in dotted lines 130). - The variation in the
size 135 of thegap 115 can cause thePDC 110 to be seated improperly. Such variations can cause thePDC 110 not to extend the proper distance proud of thedrill bit 120 body, be off center, or improperly angled. - During the remanufacturing process, the drill bit is heated to at or above 375° C. so that the damaged PDCs are easily removable. Once the PDCs are removed, the cutter pocket is conditioned by removing any excess material and sized to receive a new PDC.
- The new PDC is then placed in the cutter pocket and brazed to affix the PDC to the drill bit. During this process, the cutter pocket can become irregularly shaped, enlarged, or otherwise degraded.
-
FIG. 2 depicts a schematic of an embodiment of the inventive method of positioning aPDC 210 in acutter pocket 205. As can be seen in the figure, aregistration device 240 is added to thecutter pocket 205 prior to insertion of thePDC 210. Theregistration device 240 preferably aligns or properly positions thePDC 210 relative to thecutter pocket 205. Preferably, theregistration device 240 is machined directly into base material (for example the registration device can be milled, ground, or molded into the cutter pocket 205). Theregistration device 240 can be a rod, ball, hemisphere, triangular, a prism, or another shape. However, theregistration device 240 may be affixed to the interior surface of thecutter pocket 205. For example, recesses can be machined to receive aregistration device 240 or one ormore registration devices 240 to be affixed to the interior surface of thecutter pocket 205 during manufacturing of thedrill bit 220. For example, three, four, or fiveregistration devices 240 can be affixed to the interior surface of thecutter pocket 205. The registration device(s) 240 can be steel, bronze, a PDC, or another material. The registration device(s) 240 can be affixed with adhesive, solder, brazing, a mechanical coupling, friction, or another fixation method. - The
PDC 210 is then placed into thecutter pocket 205 and into engagement with theregistration device 240. Preferably, theregistration device 240 automatically aligns thePDC 210 within thecutter pocket 205 such that the center of thePDC 210 is coaxial with the center of thecutter pocket 205 and thePDC 210 extends proud of thedrill bit 220 the desired distance without the need for grinding the full diameter PDCs (gage). Preferably theregistration device 240 allows the brazer to exert pressure on thePDC 210 without dislocating thePDC 210 from its ideal position. Furthermore, theregistration device 240 preferably provides a constant peripheral brazed joint of between 0.004″ and 0.006″ between thePDC 210 and thecutter pocket 205. - After the drill bit returns from the oil fields or other use, any damaged
PDCs 210 can be removed, preferably without damaging theregistration device 240 andnew PDCs 210 can preferably be inserted into thecutter pocket 205 and into engagement with theregistration device 240 in the same manner as theoriginal PDCs 210. Preferably, thenew PDCs 210 have the same tolerances as theoriginal PDCs 210. - Other embodiments and uses of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. All references cited herein, including all publications, U.S. and foreign patents and patent applications, are specifically and entirely incorporated by reference. It is intended that the specification and examples be considered exemplary only with the true scope and spirit of the invention indicated by the following claims. Furthermore, the term “comprising of” includes the terms “consisting of” and “consisting essentially of.”
Claims (20)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/334,287 US20160017668A1 (en) | 2014-07-17 | 2014-07-17 | Precision polycrystalline diamond compact (pdc) pockets |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/334,287 US20160017668A1 (en) | 2014-07-17 | 2014-07-17 | Precision polycrystalline diamond compact (pdc) pockets |
Publications (1)
Publication Number | Publication Date |
---|---|
US20160017668A1 true US20160017668A1 (en) | 2016-01-21 |
Family
ID=55074154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/334,287 Abandoned US20160017668A1 (en) | 2014-07-17 | 2014-07-17 | Precision polycrystalline diamond compact (pdc) pockets |
Country Status (1)
Country | Link |
---|---|
US (1) | US20160017668A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10508503B2 (en) | 2016-09-23 | 2019-12-17 | Baker Hughes, A Ge Company, Llc | Cutting elements, earth-boring tools including the cutting elements, and methods of forming the earth-boring tools |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100314176A1 (en) * | 2009-06-12 | 2010-12-16 | Smith International, Inc. | Cutter assemblies, downhole tools incorporating such cutter assemblies and methods of making such downhole tools |
US20120090900A1 (en) * | 2010-10-15 | 2012-04-19 | Smith International, Inc. | Special curve braze sheet for top loading cutter to get better braze strength |
US20130146367A1 (en) * | 2011-11-14 | 2013-06-13 | Smith International, Inc. | Rolling cutter with improved rolling efficiency |
US20140326515A1 (en) * | 2011-12-05 | 2014-11-06 | Smith International, Inc. | Rotating cutting elements for pdc bits |
US20140367174A1 (en) * | 2013-06-12 | 2014-12-18 | Smith International, Inc. | Cutting structures and structures for retaining the same |
-
2014
- 2014-07-17 US US14/334,287 patent/US20160017668A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100314176A1 (en) * | 2009-06-12 | 2010-12-16 | Smith International, Inc. | Cutter assemblies, downhole tools incorporating such cutter assemblies and methods of making such downhole tools |
US20120090900A1 (en) * | 2010-10-15 | 2012-04-19 | Smith International, Inc. | Special curve braze sheet for top loading cutter to get better braze strength |
US20130146367A1 (en) * | 2011-11-14 | 2013-06-13 | Smith International, Inc. | Rolling cutter with improved rolling efficiency |
US20140326515A1 (en) * | 2011-12-05 | 2014-11-06 | Smith International, Inc. | Rotating cutting elements for pdc bits |
US20140367174A1 (en) * | 2013-06-12 | 2014-12-18 | Smith International, Inc. | Cutting structures and structures for retaining the same |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10508503B2 (en) | 2016-09-23 | 2019-12-17 | Baker Hughes, A Ge Company, Llc | Cutting elements, earth-boring tools including the cutting elements, and methods of forming the earth-boring tools |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
RU2544946C2 (en) | Casing string bit and spudding bit | |
US10072464B2 (en) | Earth-boring tools including formation-engaging structures having retention features and related methods | |
AU2011201710B2 (en) | Core drill bit with extended matrix height | |
US7594554B2 (en) | Cutting element insert for backup cutters in rotary drill bits, rotary drill bits so equipped, and methods of manufacture therefor | |
US10494876B2 (en) | Earth-boring tools including rotatable bearing elements and related methods | |
US9303460B2 (en) | Cutting element retention for high exposure cutting elements on earth-boring tools | |
US9879484B2 (en) | Formation-engaging assemblies, earth-boring tools including such assemblies, and associated methods | |
US10724304B2 (en) | Cutting element assemblies and downhole tools comprising rotatable and removable cutting elements and related methods | |
US20180252044A1 (en) | Earth-boring tools including bearing element assemblies, and related methods | |
US10711529B2 (en) | Cutting tool | |
US20050279533A1 (en) | Apparatus and method for securing diamond segment to rotating tool | |
US10458188B2 (en) | Cutting element assemblies comprising rotatable cutting elements, earth-boring tools including such cutting element assemblies, and related methods | |
US20160017668A1 (en) | Precision polycrystalline diamond compact (pdc) pockets | |
US10450806B2 (en) | Cutting element assemblies comprising rotatable cutting elements | |
US7900718B2 (en) | Earth-boring tools having threads for affixing a body and shank together and methods of manufacture and use of same | |
US20190063163A1 (en) | Cutting element assemblies comprising rotatable cutting elements insertable from the back of a blade | |
US20190063162A1 (en) | Cutting element assemblies comprising rotatable cutting elements, downhole tools comprising such cutting element assemblies, and related methods | |
AU2011201711B1 (en) | Core drill bit with extended matrix height | |
WO2010077838A2 (en) | Drillable bit nozzle retainer with interchangeable nozzle capability | |
US20190032407A1 (en) | Cutting element assemblies comprising rotatable cutting elements and earth-boring tools comprising such cutting element assemblies | |
CN113227530A (en) | Replaceable nozzle for drill bit | |
US8757296B2 (en) | Methods, systems, and apparatus for processing drill tools | |
US20230407709A1 (en) | Drill Bit Cutter Pocket With Stress Reducing Features |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SUPERIOR DRILLING PRODUCTS, INC., UTAH Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MEIER, GILBERT T;OSTERLOH, JAMES D;SMITH, JOSHUA J;AND OTHERS;SIGNING DATES FROM 20140917 TO 20140930;REEL/FRAME:033928/0902 Owner name: SUPERIOR DRILLING PRODUCTS, INC., UTAH Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ASCHENBRENNER, JOSEPH;REEL/FRAME:033928/0928 Effective date: 20140905 |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |