CA2090758C - Variable depth grooved drill string member - Google Patents
Variable depth grooved drill string memberInfo
- Publication number
- CA2090758C CA2090758C CA002090758A CA2090758A CA2090758C CA 2090758 C CA2090758 C CA 2090758C CA 002090758 A CA002090758 A CA 002090758A CA 2090758 A CA2090758 A CA 2090758A CA 2090758 C CA2090758 C CA 2090758C
- Authority
- CA
- Canada
- Prior art keywords
- section
- inertia
- grooved
- cross
- slip
- 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
- 238000005452 bending Methods 0.000 abstract description 17
- 238000005553 drilling Methods 0.000 description 13
- 230000007704 transition Effects 0.000 description 5
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- NRTLIYOWLVMQBO-UHFFFAOYSA-N 5-chloro-1,3-dimethyl-N-(1,1,3-trimethyl-1,3-dihydro-2-benzofuran-4-yl)pyrazole-4-carboxamide Chemical compound C=12C(C)OC(C)(C)C2=CC=CC=1NC(=O)C=1C(C)=NN(C)C=1Cl NRTLIYOWLVMQBO-UHFFFAOYSA-N 0.000 description 1
- 241001584759 Potentilla baileyi Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 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
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/22—Rods or pipes with helical structure
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)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US1991/003159 WO1993000500A2 (en) | 1991-06-25 | 1991-06-25 | Variable depth grooved drill string member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2090758A1 CA2090758A1 (en) | 1992-12-26 |
| CA2090758C true CA2090758C (en) | 1998-07-28 |
Family
ID=22225514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002090758A Expired - Lifetime CA2090758C (en) | 1991-06-25 | 1991-06-25 | Variable depth grooved drill string member |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0544835B1 (de) |
| CA (1) | CA2090758C (de) |
| DE (1) | DE69121575T2 (de) |
| WO (1) | WO1993000500A2 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2411253A1 (en) * | 2001-04-26 | 2002-10-28 | Furukawa Co., Ltd. | Step tube rod, and drilling machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3125173A (en) * | 1964-03-17 | Tubular drill string members | ||
| US4285407A (en) * | 1979-12-17 | 1981-08-25 | Samford Travis L | Straight hole driller |
| US4460202A (en) * | 1980-11-26 | 1984-07-17 | Chance Glenn G | Intermediate weight drill string member |
| FR2517357A1 (fr) * | 1981-11-27 | 1983-06-03 | Smf Int | Tige de forage |
| US4811800A (en) * | 1987-10-22 | 1989-03-14 | Homco International Inc. | Flexible drill string member especially for use in directional drilling |
-
1991
- 1991-06-25 DE DE69121575T patent/DE69121575T2/de not_active Expired - Lifetime
- 1991-06-25 EP EP91919444A patent/EP0544835B1/de not_active Expired - Lifetime
- 1991-06-25 WO PCT/US1991/003159 patent/WO1993000500A2/en active IP Right Grant
- 1991-06-25 CA CA002090758A patent/CA2090758C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2090758A1 (en) | 1992-12-26 |
| DE69121575T2 (de) | 1997-03-13 |
| EP0544835A4 (en) | 1993-09-22 |
| WO1993000500A3 (en) | 1993-02-18 |
| WO1993000500A2 (en) | 1993-01-07 |
| DE69121575D1 (de) | 1996-09-26 |
| EP0544835A1 (de) | 1993-06-09 |
| EP0544835B1 (de) | 1996-08-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |