US1494720A - Method of building up bits and underreamer cutters - Google Patents
Method of building up bits and underreamer cutters Download PDFInfo
- Publication number
- US1494720A US1494720A US586788A US58678822A US1494720A US 1494720 A US1494720 A US 1494720A US 586788 A US586788 A US 586788A US 58678822 A US58678822 A US 58678822A US 1494720 A US1494720 A US 1494720A
- Authority
- US
- United States
- Prior art keywords
- tool
- bits
- building
- underreamer
- cutters
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title description 8
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- QFXZANXYUCUTQH-UHFFFAOYSA-N ethynol Chemical group OC#C QFXZANXYUCUTQH-UHFFFAOYSA-N 0.000 description 3
- 241000167854 Bourreria succulenta Species 0.000 description 2
- 235000019693 cherries Nutrition 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000677 High-carbon steel Inorganic materials 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
Definitions
- This invention relates to a new and im- 1 proved method of building up bits and underreamer cutters such as used in drilling water, oil or gas wells. It is a fact 'well known to those skilled in the art that these tools soon become worn and chipped as a result of their impact against the hard rock,
- bit or cutter In carrying out the process the bit or cutter is heated to a cherry red by subjecting the same to a slow heat. A layer of high carbon (tool) steel is then welded onto the tool by means of an oxy-acetylene torch. This steel is then hammered andreheated and another layer of tool steel is welded on as before. This process is repeated until ht to the desired shape and the tool is broug size. to cool slowly.
- tools high carbon
Description
Patented May 20, 1924.
UNITED STATES PATENT OFFICE.
TfiOMAS M. SULLIVAN, OF SANTA PAULA, CALIFORNIA, ASSIGNOR OF ONE-HALF '10 WILLIAM D. SHAFFER, OF SANTA PAULA, CALIFORNIA.
METHOD OF BUILDING UP BITS AND UNDERREAMER CUTTEBS.
No m'awing.
Santa Paula, in the county of Ventura and 6 State of California, have invented a new and useful Method of Building Up Bits and Underreamer Cutters,of which the following is a specification.
This invention relates to a new and im- 1 proved method of building up bits and underreamer cutters such as used in drilling water, oil or gas wells. It is a fact 'well known to those skilled in the art that these tools soon become worn and chipped as a result of their impact against the hard rock,
being worked and, as a result of this wear and tear it becomes necessary to trim and consequently waste the material of the tool.
In the case of underreamer cutters the wear is considerable and after repeated dressmgs these cutters become too short to expand properly although the shank portions are still usable.
It is an object of the present invention to build up these tools to their original size and shape so that they can be dressed and hardened to resist wear, thus prolonging the lives of the tools indefinitely.
In carrying out the process the bit or cutter is heated to a cherry red by subjecting the same to a slow heat. A layer of high carbon (tool) steel is then welded onto the tool by means of an oxy-acetylene torch. This steel is then hammered andreheated and another layer of tool steel is welded on as before. This process is repeated until ht to the desired shape and the tool is broug size. to cool slowly.
After it is thoroughly cool The tool is then reheated and allowed I Application filed September 7, 1922. Serial No. $88,788.
one heat, a sufiicient amount of material being used to build up the toolto the proper' size. After the tool has been allowed to cool it is reheated and dressed by hammeringdto a cutting edge, and thereafter hardene In practice it has been found that this method of buildingup tools of this character results in a considerable saving inasmuch as many tools that would otherwise be discarded because too small for further use, can remain in use.
What is claimed is The herein described method ofbuilding up worn well drillin tools and the like which consists in slow y heating the tool to a cherry red, applying to the tool a layer of high carbon steel, welding said layer to the tool by the oxy-acetylene process, subsequently hammering and reheating the steel and applying thereto another layer of steel by the oxy-acetylene process, then reheating the tool and. allowing it to cool, and finally again heating the tool, shaping it and hardening it.
In testimony that I claim the foregoing as my own, I have hereto afiixed my signature Witnesses:
C. C. FULLER, H. L. PERRY-
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US586788A US1494720A (en) | 1922-09-07 | 1922-09-07 | Method of building up bits and underreamer cutters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US586788A US1494720A (en) | 1922-09-07 | 1922-09-07 | Method of building up bits and underreamer cutters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1494720A true US1494720A (en) | 1924-05-20 |
Family
ID=24347109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US586788A Expired - Lifetime US1494720A (en) | 1922-09-07 | 1922-09-07 | Method of building up bits and underreamer cutters |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1494720A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2494970A (en) * | 1946-04-27 | 1950-01-17 | Jeremiah F Shea | Method of reconditioning forging dies |
-
1922
- 1922-09-07 US US586788A patent/US1494720A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2494970A (en) * | 1946-04-27 | 1950-01-17 | Jeremiah F Shea | Method of reconditioning forging dies |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2640379A (en) | Drill | |
| US2354656A (en) | Drill bit | |
| US2134749A (en) | Method of making cast iron slips for oil tools | |
| US1494720A (en) | Method of building up bits and underreamer cutters | |
| US1207808A (en) | Method of making screen. | |
| US2104579A (en) | Method of and apparatus for mining coal and the like | |
| US1629581A (en) | Tool for drilling concrete, etc. | |
| US2218069A (en) | Tool and method of making the same | |
| US2166478A (en) | Drill bit | |
| US1973657A (en) | Well drilling bit and its process of manufacture | |
| Pinahin et al. | Investigation into strength T5К10 hard alloy after volumetric pulsed laser hardening (VPLH) | |
| USRE25684E (en) | Method of making rock bit cutter | |
| US1580255A (en) | Bit die | |
| US1725515A (en) | Method of sharpening hollow or mortiser chisels | |
| US2137470A (en) | Process for producing cutting teeth | |
| US1277770A (en) | Method of making reamers. | |
| GB350607A (en) | Improvements in or relating to the facing of cutting, drilling and boring tools | |
| GB1293905A (en) | Oil drilling tools | |
| US1995284A (en) | Cutting edge for drilling tools and method of producing same | |
| SU623971A1 (en) | Method of obtaining stone blanks | |
| US1769636A (en) | Method of forming teeth on cutters | |
| US1886835A (en) | Metal treating process | |
| US55488A (en) | Improved rock-drill | |
| US2268715A (en) | Method of reconditioning rock drill bits | |
| US2042447A (en) | Quarrying tool |