US143141A - Improvement in casing-spears - Google Patents
Improvement in casing-spears Download PDFInfo
- Publication number
- US143141A US143141A US143141DA US143141A US 143141 A US143141 A US 143141A US 143141D A US143141D A US 143141DA US 143141 A US143141 A US 143141A
- Authority
- US
- United States
- Prior art keywords
- casing
- spears
- improvement
- square
- wickers
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241001077898 Melanthera Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000382509 Vania Species 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/20—Grappling tools, e.g. tongs or grabs gripping internally, e.g. fishing spears
Definitions
- the object of my invention is to loosen casing in oil-wells by jarring with ordinary drilling-jars, with a hold within, near the bottom, (where the sticking always oocurs,) thus obviating the necessity of cutting the same, which is the method of removal now employed.
- a tool is necessary which can take a rm gripe at any point within, and at the same time one which can be loosened to allow withdrawal when the work is accomplished, and the casing hangs free from above.
- S S is a solid, square, tapering iron stem, with pin on top to fit ordinary drilling-tools, and conical guide at bottom,witl1 shoulder Z Z.
- the four wickers W W are secured by rims R R to square Vcollar N N, which works up and down on the stem.
- Steel springs L L are inserted in the stem,to catch in slots X X in the inside of the square collar, so that on down jarring the wickers can be caught up and ⁇ supported by the springs L L, and the tool withdrawn.
- the eye Y on the square collar.. secures a line or wire with whichl to lift wickers in case of accident to the springs.
- the loose collar K K is screwed onand on, so that the wickers may be removed when necessary.
- Figure 3 shows-the method of talring the weightof the casing C from above.
- the yoke M is secured by two chains to clamps Q, at a sufficient widthapart to allow ⁇ jarring to be done by working beam B, to which the temper-screw T is attached in the usual way to drillingcable and drilling-tools.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Marine Sciences & Fisheries (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Description
V. 'GRETTEIL Casin-g Spears.
Patented September 23,1873.
No. 143,141.v
lkw/@7720.21 @w "UNITED STATES PA'ralv'r OFFICE.
VICTOR GRETTER, OF RICHLAND TOWNSHIP, CLARION COUNTY, PA.
{MPRovEMENT IN cAslNG-SPEARS.
Specification forming part of Letters Patent No. 143,141, dated September 23, 1873; application led May 14, 1873. Y
To all whomt may concern:
Be it known that I, VICTOR GRETTER, of Richland township, Clarion county, Pennsyl- Vania, (St. Petersburg P. 0.,) have invented certain Improvements in Casing-Spears, of which the following is a specification:
The object of my invention is to loosen casing in oil-wells by jarring with ordinary drilling-jars, with a hold within, near the bottom, (where the sticking always oocurs,) thus obviating the necessity of cutting the same, which is the method of removal now employed. For this purpose a tool is necessary which can take a rm gripe at any point within, and at the same time one which can be loosened to allow withdrawal when the work is accomplished, and the casing hangs free from above.
In the annexed drawing, S S is a solid, square, tapering iron stem, with pin on top to fit ordinary drilling-tools, and conical guide at bottom,witl1 shoulder Z Z. The four wickers W W are secured by rims R R to square Vcollar N N, which works up and down on the stem. Steel springs L L are inserted in the stem,to catch in slots X X in the inside of the square collar, so that on down jarring the wickers can be caught up and `supported by the springs L L, and the tool withdrawn. The eye Y on the square collar.. secures a line or wire with whichl to lift wickers in case of accident to the springs. The loose collar K K is screwed onand on, so that the wickers may be removed when necessary.
Figure 3 shows-the method of talring the weightof the casing C from above. The yoke M is secured by two chains to clamps Q, at a sufficient widthapart to allow` jarring to be done by working beam B, to which the temper-screw T is attached in the usual way to drillingcable and drilling-tools.
I claim the following: l
The combination of the wickers W VV,fstraps R R, and square collar N with the tapering square stem S S, having movable collar K,
spring L, conical point, and shoulders Z Z, all
constructed substantially as and for the purposes set forth. y VICTOR GRETTER.
Witnesses:
C. C. BONE, F. A. CONKLE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US143141A true US143141A (en) | 1873-09-23 |
Family
ID=2212554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US143141D Expired - Lifetime US143141A (en) | Improvement in casing-spears |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US143141A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030120394A1 (en) * | 2001-12-26 | 2003-06-26 | Ziarnik Gregory P. | Adaptive fan controller for a computer system |
| US20110215998A1 (en) * | 2010-03-08 | 2011-09-08 | Brent Paul Fitzgerald | Physical action languages for distributed tangible user interface systems |
-
0
- US US143141D patent/US143141A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030120394A1 (en) * | 2001-12-26 | 2003-06-26 | Ziarnik Gregory P. | Adaptive fan controller for a computer system |
| US20110215998A1 (en) * | 2010-03-08 | 2011-09-08 | Brent Paul Fitzgerald | Physical action languages for distributed tangible user interface systems |
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