EP0044335A1 - Verbindungsstangen zwischen dem lasthaken und dem elevator eines bohrgestänges - Google Patents
Verbindungsstangen zwischen dem lasthaken und dem elevator eines bohrgestängesInfo
- Publication number
- EP0044335A1 EP0044335A1 EP19810900449 EP81900449A EP0044335A1 EP 0044335 A1 EP0044335 A1 EP 0044335A1 EP 19810900449 EP19810900449 EP 19810900449 EP 81900449 A EP81900449 A EP 81900449A EP 0044335 A1 EP0044335 A1 EP 0044335A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- elevator
- connection
- connecting rods
- rods
- rod
- 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.)
- Withdrawn
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 3
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 241001417523 Plesiopidae Species 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005496 tempering 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/02—Rod or cable suspensions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
- F16G15/08—Swivels
Definitions
- the invention relates to connecting rods between the load hook and the elevator of a drill pipe with eyes provided at each end of the rod.
- Such connecting rods are used in pairs on the load hooks in drilling towers for suspending the "elevators” as so-called “elevator brackets”.
- the connecting rods are subject to severe wear, which mainly occurs in the eye area. This damage can be remedied by grinding out and build-up welding and tempering the connecting rods again, however a reduction in lifting capacity may be unavoidable. If there are major signs of wear, the connecting rods must be scrapped for safety reasons.
- the previously known connecting rods are made in one piece in a cast or Sch deie construction or from a combination of both manufacturing processes
- the invention has for its object to reduce the amount of connecting rods to be stored as spare parts.
- the couplings can be designed using joints, threads, clamps, bolts, brackets, etc.
- the stock of the reserve rods can additionally be reduced if the load hook eye is also interchangeably attached to the shaft. Worn load hook and elevator eyes are then easily exchangeable.
- the connecting rods By dividing the connecting rods into several parts, different materials can be used. For example, the cast iron or the eyes and the shaft is made of rolled material. This will reduce! the manufacturing cost. If the hook eye is not to be coupled to the shaft, a welded connection is also conceivable.
- damping devices can be provided in the connecting rods via, for example, Fer hydraulics, which enable a reduction in the shock effect when the load is taken up, as a result of which it is conceivable to use inexpensive, ie undamped load hook types.
- Fer hydraulics which enable a reduction in the shock effect when the load is taken up, as a result of which it is conceivable to use inexpensive, ie undamped load hook types.
- FIG. 1 shows an elevator 5 of a drill rod, also not shown, suspended on the load hook 4 of a hoist (not shown) with the aid of connecting rods 3.
- Each of the connecting rods 3 consists of two flat iron strips 6, which are detachably connected to the upper hook eye 1 and the lower elevator eye 2 by means of a bolt, screw or plug connection 16.
- Fig. 2 shows between the load hook 4 and the elevator 5 i
- Attachment to the eyes 1 'and 2' consists of a bolt, screw or plug connection 17.
- 3 shows connecting rods 3 "in rod shape 9.
- the detachable connection with eyes 1" and 2 " is shown using the example of the elevator eye 2" in FIGS. 3a to 3e and the example of the lifting hook eye 1 "in FIG. 3f.
- Fig. 3c shows two cuts perpendicular to each other through a two-part, e.g. screws 12 (not shown) held in holes 11a of the flanges 11 coupling 12 Rectangular or round heads of the parts 2 "and 3" detachable and, if necessary, non-rotatably connected
- 3d shows a detachable connection of the parts 2 "and 3" produced by flat overlaps 13 by means of screws 13a.
- Fig. 3e shows a similar overlap '14 as shown in FIG. 3d, but with a shear surface 15 for relief of the bolt 14a in tension.
- __c: 3f shows a connection of the parts 1 "and 3" by welding. This connection is released by a flame or saw cut along line 18 and the connection is restored by welding the machined cut surfaces of parts 1 "and 3" again.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19803002314 DE3002314A1 (de) | 1980-01-23 | 1980-01-23 | Verbindungsstangen zwischen dem lasthaken und dem elevator eines bohrgestaenges |
| DE3002314 | 1980-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0044335A1 true EP0044335A1 (de) | 1982-01-27 |
Family
ID=6092750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19810900449 Withdrawn EP0044335A1 (de) | 1980-01-23 | 1981-01-23 | Verbindungsstangen zwischen dem lasthaken und dem elevator eines bohrgestänges |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0044335A1 (sv) |
| JP (1) | JPS57500159A (sv) |
| DE (1) | DE3002314A1 (sv) |
| WO (1) | WO1981002182A1 (sv) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE79846T1 (de) * | 1981-11-13 | 1983-12-08 | Hughes Tool Co., 77023 Houston, Tex. | Mehrteilige verbindungsstange fuer einen elevator. |
| US6520709B1 (en) * | 1999-04-30 | 2003-02-18 | Frank's Casing Crew And Rental Tools, Inc. | Variable length/capacity elevator links |
| DE102008050581A1 (de) * | 2008-09-26 | 2010-04-01 | Blohm + Voss Repair Gmbh | Verfahren zur Herstellung von Verbindungselementen sowie Verbindungselement |
| CN104632105B (zh) * | 2015-02-02 | 2017-03-08 | 中国石油天然气集团公司 | 接钻具作业工艺方法及工具 |
| AU2019258608A1 (en) | 2018-04-27 | 2020-11-26 | Noetic Technologies Inc. | Adjustable bail extension |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2067700A (en) * | 1936-09-08 | 1937-01-12 | Skelly Oil Co | Sucker rod adjuster |
| GB544267A (en) * | 1941-02-06 | 1942-04-03 | North British Electric Welding | Improvements in and relating to shackles |
| US3351372A (en) * | 1966-05-02 | 1967-11-07 | Dresser Ind | Split hook hoisting apparatus |
| US3461666A (en) * | 1967-10-17 | 1969-08-19 | Byron Jackson Inc | Elevator link and process of making the same |
| GB1325524A (en) * | 1971-01-22 | 1973-08-01 | Parsons Chain Co Ltd | Chains and other lifting gear |
-
1980
- 1980-01-23 DE DE19803002314 patent/DE3002314A1/de not_active Ceased
-
1981
- 1981-01-23 JP JP50057881A patent/JPS57500159A/ja active Pending
- 1981-01-23 EP EP19810900449 patent/EP0044335A1/de not_active Withdrawn
- 1981-01-23 WO PCT/EP1981/000009 patent/WO1981002182A1/de not_active Application Discontinuation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO8102182A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1981002182A1 (en) | 1981-08-06 |
| DE3002314A1 (de) | 1981-07-30 |
| JPS57500159A (sv) | 1982-01-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19811030 |
|
| AK | Designated contracting states |
Designated state(s): AT FR GB NL |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19831026 |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: POPPE, HORST Inventor name: ULBRICH, JUERGEN |