US2073859A - Pipe holder - Google Patents
Pipe holder Download PDFInfo
- Publication number
- US2073859A US2073859A US756864A US75686434A US2073859A US 2073859 A US2073859 A US 2073859A US 756864 A US756864 A US 756864A US 75686434 A US75686434 A US 75686434A US 2073859 A US2073859 A US 2073859A
- Authority
- US
- United States
- Prior art keywords
- adapter
- slips
- pipe
- seat
- rotary table
- 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
- 238000005553 drilling Methods 0.000 description 4
- 238000010276 construction Methods 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/10—Slips; Spiders ; Catching devices
Definitions
- This invention relates to a pipe holder.
- An object of the invention is to provide a pipe holder for supporting a string of pipe suspended in a well bore.
- Figure 1 shows a vertical sectional view of the holder showing the pipe therein
- Figure 2 shows a plan view, partly in section.
- the numeral I designates the table of a rotary drilling machine which is mounted on the bed plate 2, as shown. table is extended through a central opening in the bed plate and is mounted to revolve on the rollers 3. The rotary table is driven by the beveled pinion l fixed on the drive shaft 5.
- the rotary table has a downwardly converging rectangular countersunk portion I provided to receive a drive bushing which is used for driving the drill stem 8 during ordinary drilling operations.
- the pipe holding means In making up the drill stem when going into the well, or when breaking up the drill stem while removing the same from the well, the pipe holding means, presently to be described, is used, and comprises the adapter 9 and the slips Ill.
- the adapter is preferably formed of two segments arcuate in cross-sectional contour and whose lower ends are tapered downwardly to conform to the shape of and to fit into the seat 6. At their upper ends these segments are widened as at H, and rest upon the bottom of the countersunk portion 1 of the rotary table.
- the upper end of the adapter is approximately flush with the upper surface of the table, and the adapter has a downwardly converging seat [2 ex- The tending from the upper to the lower ends thereof.
- slips H! are provided, two being shown. These slips are provided with the handles 13, by means of which they may be handled.
- the inner surfaces of the slips are toothed to form gripping surfaces to engage the pipe 8 and their outer surfaces are tapered downwardly so as to conform to the shape of, and to fit within, the adapter seat I2, and said slips may be ex- 1 tended upwardly above and downwardly beneath the adapter to provide maximum gripping surface to engage the pipe to be held.
- the seat l2 has a vertical length considerably in excess of that on the seat 15 6.
- the downwardly converging seat 6 is available to receive the slips and if long slips are used in such seat 6, their upper ends would be unsupported laterally, and said unsupported ends would consequently yield outwardly and not provide efiective gripping surfaces for the pipe.
- the rotary table would have to be reconstructed and made higher, which is undesirable, as it would add to weight unnecessarily and make the work around it more difficult.
- the upper ends of the slips are provided with lateral support, and consequently a longer type of slip can be effectively used, with the present type of rotary by utilizing the walls of the countersunk portion 1 as a lateral support.
- each section of the adapter is provided with two outwardly extended lugs M, M.
- said adapter is lowered with the lugs l4 located in corresponding angles or corners of the countersunk portion 1 until the outwardly enlarged upper end ll of the adapter rests on the bottom of said countersunk portion, and the adapter is then turned to cause said lugs to enter the corresponding slots IS in the rotary table, and the adapter is thereby held against upward movement relative to the rotary table when the pipe 8 is moved upwardly.
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- 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)
- Machine Tool Units (AREA)
Description
March 16, 1937. LQ-HLBURY I 2,073,859
I PIPE HOLDER Filed Dec. 10, 1954 Patented Mar. 16 1937 amass!) PATENT OFFICE PIPE HOLDER Lyle C. Tilbury, Houston, Tex., assignor, by
mesne assignments, to A. W. Crosby, Harris I County, Tex.
Application December 10, 1934, Serial No. 756,864
1 Claim.
This invention relates to a pipe holder.
An object of the invention is to provide a pipe holder for supporting a string of pipe suspended in a well bore.
5 It is common practice to support pipe in a well bore suspended from the rotary table of the rotary drilling machine by the use of pipe engaging slips, which in turn are seated in a downwardly converging seat in the rotary table or in an adapter which, in turn, is seated in the table. As at present constructed, these slips do not have sufficient gripping area to support long strings of pipe or drill stem such as are now used in deep well drilling. It is the prime object of this invention to provide pipe holding means which embodies slips of a greater length than those commonly used with novel means for supporting the slips in the rotary table.
With the above and other objects in view,
the invention has particular relation to certain novel features of construction, operation, and arrangement of parts, an example of which is given in this specification and illustrated in the accompanying drawing, wherein:
Figure 1 shows a vertical sectional view of the holder showing the pipe therein, and
Figure 2 shows a plan view, partly in section.
In the .drawing the numeral I designates the table of a rotary drilling machine which is mounted on the bed plate 2, as shown. table is extended through a central opening in the bed plate and is mounted to revolve on the rollers 3. The rotary table is driven by the beveled pinion l fixed on the drive shaft 5.
The rotary table has a downwardly converging rectangular countersunk portion I provided to receive a drive bushing which is used for driving the drill stem 8 during ordinary drilling operations.
In making up the drill stem when going into the well, or when breaking up the drill stem while removing the same from the well, the pipe holding means, presently to be described, is used, and comprises the adapter 9 and the slips Ill.
The adapter is preferably formed of two segments arcuate in cross-sectional contour and whose lower ends are tapered downwardly to conform to the shape of and to fit into the seat 6. At their upper ends these segments are widened as at H, and rest upon the bottom of the countersunk portion 1 of the rotary table. The upper end of the adapter is approximately flush with the upper surface of the table, and the adapter has a downwardly converging seat [2 ex- The tending from the upper to the lower ends thereof.
A plurality of slips H! are provided, two being shown. These slips are provided with the handles 13, by means of which they may be handled. The inner surfaces of the slips are toothed to form gripping surfaces to engage the pipe 8 and their outer surfaces are tapered downwardly so as to conform to the shape of, and to fit within, the adapter seat I2, and said slips may be ex- 1 tended upwardly above and downwardly beneath the adapter to provide maximum gripping surface to engage the pipe to be held.
It will be noted that the seat l2 has a vertical length considerably in excess of that on the seat 15 6. At the present time only the downwardly converging seat 6 is available to receive the slips and if long slips are used in such seat 6, their upper ends would be unsupported laterally, and said unsupported ends would consequently yield outwardly and not provide efiective gripping surfaces for the pipe. In order to give such lateral support to the upper ends of said longer type of slips, the rotary table would have to be reconstructed and made higher, which is undesirable, as it would add to weight unnecessarily and make the work around it more difficult. With the present type of adapter, as shown in the drawing, the upper ends of the slips are provided with lateral support, and consequently a longer type of slip can be effectively used, with the present type of rotary by utilizing the walls of the countersunk portion 1 as a lateral support.
As shown, each section of the adapter is provided with two outwardly extended lugs M, M. In assembling the adapter in the rotary table, said adapter is lowered with the lugs l4 located in corresponding angles or corners of the countersunk portion 1 until the outwardly enlarged upper end ll of the adapter rests on the bottom of said countersunk portion, and the adapter is then turned to cause said lugs to enter the corresponding slots IS in the rotary table, and the adapter is thereby held against upward movement relative to the rotary table when the pipe 8 is moved upwardly.
The drawing and description disclose what is now considered to be a preferred form of the invention by way of illustration only, while the broad principle of the invention will be defined by the appended claim.
What I claim is:
The combination with a rotary table having a downwardly converging seat whose upper end 55 10 having an inside downwardly converging seat approximately from its upper to its lower end, the vertical thickness of the enlarged portion of the adapter being greater than the transverse thickness of the adapter beneath the thickened portion, pipe engaging slips in the adapter seat and extended above and beneath the seat, but being supported laterally by the adapter substantially throughout the length of the slips.
LYLE C. 'I'ILBURY.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US756864A US2073859A (en) | 1934-12-10 | 1934-12-10 | Pipe holder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US756864A US2073859A (en) | 1934-12-10 | 1934-12-10 | Pipe holder |
Publications (1)
Publication Number | Publication Date |
---|---|
US2073859A true US2073859A (en) | 1937-03-16 |
Family
ID=25045383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US756864A Expired - Lifetime US2073859A (en) | 1934-12-10 | 1934-12-10 | Pipe holder |
Country Status (1)
Country | Link |
---|---|
US (1) | US2073859A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2741459A (en) * | 1953-02-18 | 1956-04-10 | Shaffer Tool Works | String centering device for deep well platforms |
CN103362464A (en) * | 2012-04-11 | 2013-10-23 | 成都清华机械制造有限公司 | Multifunctional hydraulic power slip |
-
1934
- 1934-12-10 US US756864A patent/US2073859A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2741459A (en) * | 1953-02-18 | 1956-04-10 | Shaffer Tool Works | String centering device for deep well platforms |
CN103362464A (en) * | 2012-04-11 | 2013-10-23 | 成都清华机械制造有限公司 | Multifunctional hydraulic power slip |
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