US1868747A - Drill pipe racking apparatus - Google Patents

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July 26, 193 2. s, s, HEMBREE 1,868,747

DRILL PIPE BACKING APPARATUS Filed Au jls. 1950 SSheets-Sheet 1 r 1 I Z/ INVENTOR Samuel Q/fembrea ATTORNEY July 1932- s; s. HEMBREE 1,868,747

' I DRILL PIPE BACKING APPARATUS Filed'Aug. 15,1930 5 Sheets-Sheet 2 INVENTOR BY Samue/ J. Haw/as ATTORNEY July 26, 1932.

S. S. HEMBREE DRILL PIPE BACKING APPARATUS Filed Aug. 15, 1950 70 j 4 i 9 a0 99 7a 57 A g INVENTOR BY Samue/ Mia/fibres ATTORNEY 3 Sheets-Sheet 3 Patented July 26, 1932 UNITED STATES PATENT OFF 2 SAMUEL SPENCER HEMBREE, OF OKLAHOMA CITY, OKLAHOMA; ASSIGNOR IO AMERI- CAN IRON & MACHINE WORKS COMPANY, OF'OKLAHOMA CITY, OKLAHOMA, A. 003- PORATION OF OKLAHOMA DRILL PIPE BACKING- APPARATUS Application filed. August 15. 1930. Serial No. 475,518.

My invention relates to well drilling equipment and more particularly to rotary drilling p equipment including drill pipe and means for periodically removing the pipe from the well hole for repair or replacement of drilling parts, racking the pipe sections as they are removed from the well and replacement of the pipe when drillingis to be resumed, the principal objects of the invention being to reduce the labor and hazard incident to manual racking of the pipe section.

In accomplishing these and other objects of my invention, I have provided improved details of structure, the preferred forms of which are illustrated in-the accompanying drawings, wherein: p

Fig. 1 is a sectional view of an oil well derrick equipped with a pipe racking apparatus v embodying my invention.

Fig. 2 is a fragmentary view of a derrick leg, a cable winding mechanism and operating means being attached to a pair of girders illustrated in section.

Fig. 3 is a detail perspective view of a cable reeling member and supporting frame.

Fig. 4 is a detail perspective view in disassembled relation of an operating lever and a bracket for supporting the same Fig. 5 is a sectional view of a girder portion, with the cable reeling drum pivotally attached thereto by the supporting'frame.

Fig. 6 is a detail perspective. view of a hook for engaging a drill pipe. I

Fig. 7 is a sectional view of the upper portion of an oil well derrick equipped with a modified form of pipe racking apparatus.

Fig. 8 is an elevational view, partly in section, of a supporting bracketand reeling mechanism mounted therein. Fig. 9 is a cross section on the line 9- Fig. 8, particularly illustrating the method of securing a wire line to a reeling drum.

Referring more in detail to the drawings: 1 designates a derrick floor and 2 an oil well derrick, including a crownblock 3 rotatably supporting a sheave wheel 4. A cable 5 wound on a drum 6 of rotary draw works 7 is run over the crown sheave for operating a travelingblock 8, the draw works being driven by an engine 9 through suitable sprockets 10 and chain belts 11 as in common 13 of the block is engaged with drill pipe sections 14 for lowering or elevating drill pipe into, or from, well holes.

In removing the drill pipe from a well to replace or repaira drill bit, sections of the pipe, after being uncoupled by workmen onthej-derrick floor,- are disconnected from the elevator and racked in their respective order by a workman stationed on a platform 15 near the top of the derrick. r l

To obviate much of the laborand danger incident to this operation I have provided a racking mechanism to be operated by pow? er from the rotary draw works, and to be controlled by the workman on the platform 15. y In itspreferred form the apparatus includesa friction collar 16 fixed to a shaft 17 of the draw works, and adapted to be ractice. An elevator 12 attached to a hook A frictionally engaged by a reeling mechanism 24 having outer threaded ends 25 for receiving nuts 26, being extended through aligning openings 27 and 28 in the arms and ears respectively.

Provided in the arms near their lower ends are aligning openings 29 for receiving journal ends 30 of a reeling shaft 31 on which is mounted a drum 32 fixed to the shaft by collars 33 engaging threaded portions 34: of the shaft, the arms being maintained in spaced parallel relation by a cross bar "35 having lateral: ears 36 fixed to the arms by bolts 37 or the like. 1 l

One'end'portion of the drum is covered with fibrous material 38 for engaging the collar 16, thefother end portion being. provided with an annular recess 39. to serve derrick, and over a pulley 47 similarly attached to a cross member 48.

Interposed in the cable between the pulleys 44 and 17 is a pipe-engaging hook 49 provided with openings 50 and 51 for receiving the cable ends, the free end of the cable being passed through an aperture 52 in the platform 15 and attached to a weight 53 for normally unreeling the cable from the drum to return the hook toward the workman.

Means for effecting engagement of the drum 82 with the collar 16 includes an operating cable 54, extending from a position adjacent the operator, over pulleys 55 and 56 attached to the derrick by brackets 57 and 58 respectively, to a bell crank lever 59 pivotally supported by a pin 60 from a bracket 61, said bracket being secured by bolts 62 to a derrick girder 63 extending parallel to the girder 19. A connecting link 64 attached by an integral yoke 65and pin 66 to a short arm 67 of the bell crank lever is provided with a hook 68 for engaging an opening 69 in the cross bar 35 of the reeling mechanism.

In racking drill pipe with an apparatus constructed and assembled as described, the operator after disconnecting an elevated pipe section from the elevator engages the hook 49 with the upper end of said section and pulls on the cable 54, to move the drum 32 into frictional contact with the collar 16, thereby causing the cable 40 to wind on said reel and move the pipe section to a desired position Within the derrick. Upon release of the cable 54 the drum is moved by gravity to its normal position, permitting the weight 53 to unwind the cable 40.

In the modified form illustrated in Figs. 7, 8, and 9 the same principle for racking drill pipe is employed; however, in this form, power for moving the pipe is taken from a wire line 71 or other cable of common well drilling equipment by a swinging reel mechanism 72, attached to the derrick by a bracket 7 3.

The bracket 7 3 includes a hook portion 7 4 on its inner end cooperating with a hook 75, said hooks being clamped by a bolt 76 to the flanges of an I beam 77. an inverted U-shaped outer end 78 of the bracket is adapted to pivotally receive therebetween the connected ends 79 of a yoke member 80, terminating in spaced arms 81, a bolt 82 being extended through the U-shaped portion and through the connected ends 79 to support the yoke member from the bracket.

Supported between the arms 81, and fixed on a sleeve 8 1 rotatably mounted on a shaft 85 extending through openings 86 in said arms is a pulley S7 for engaging the wire line, and a spool 88 adapted for receiving an actuating cable 89, washers 90 being provided on the shaft to space the spool and pulley from each other and from the arms, and a nut 91 being threaded on the shaft for retaining the parts in adjusted relation.

The cable 89 passed through an aperture 92 in the spool and provided with a knot for securing it thereto is run over pulleys 93 and 94 attached by respective brackets 95 and 96 to the derrick, a hook 97 and weight 98 being provided on the cable as in the preferred form. V Attached to an extended portion 99 of one of the yoke arms is an operating cable 100 run over a pulley 101 and provided with a grip 102.

The operation for racking pipes with the modified form is simila' to that of the pre ferred form, a workmanstationed on the derrick platform pulling the cable 100 to cause engagement of the pulley 87 with the wire line to effect winding of the actuating cable on the drum and racking of the drill pipe. Upon release of the operating cable, the actuating cable is returned to its normal position by the weight.

What 1 claim and desire to secure by Letters Patent is:

1. In combination with well drilling equipment including a derrick having means for supporting a pipe in vertical position, and a member moving during operation of the equipment, means including a drum adapted to be driven by said member for racking a pipe vertically within the derrick, and means for opcrably connecting said drum with said moving member at desired intervals.

2. In combination withequipment inclrding a movable member, and a derrick for .upporting a pipe or the like in upright position, means including a line and a hook on said line engageable with the pipe for shifting the same, transversely in the derrick and means for effecting intermittent driving re lation between said member and said line for moving the hook to shift the pipe.

In combination with well drilling equipment, pipe racking apparatus including a reel, a cable attached to the reel, pipeengaging means on the cable, driving means for rotating the reel to windthe cable and effect movement of said pipe to vertically racked position within the derrick, means for effecting a driving relation between the reel and driving means, and means'for unwinding the cable to return the pipe-engaging means to its starting position.

1. Pipe racking apparatus including a mine, a reel and a drum carried by the frame, a cable attached to the reel, pipe engaging means on the cable. a driving member, means for swinging the drum to frio tional engagement with said driving member to wind the cable, and means for unwinding the cable from the reel.

5. Pipe racking apparatus including a frame, a reel and a drum carried by the l i frame, a cable attachedto the reel, pipe engaging means on the cable, a driving collar, means for swinging the drum to frlctlonal engagement with said collar to wind the cable,

including a second cable attached to the frame, and means for unwinding the first named cable from the reel.

6. Pipe racking apparatus includlng a frame, a drum carried by the frame, a cable attached to the drum, a hook interposed 1n the cable, a driving collar, means for swinging the drum to frictional engagement with said collar to wind the cable, and a weight on the free end of the cable to unwind the cable and normally maintain the drum and collar in disengaged relation.

7. In combination with well drilling equipment, pipe racking apparatus includ ing a frame, a reel and a drum carried by the frame, a cable attached to the reel, means for directing a portion of the cable to move transversely in the derrick, pipe engaging means on said transverse portion of the cable, a driving collar on the drilling equipment, means for swinging the drum to frictional engagement with said collar to wind the cable, and move the pipe laterally in the derrick, and means for unwinding the cable from the reel. I

8. In combination with well drilling equipment including draw works having rotating members, a floor, and a platform spaced from said floor, pipe racking apparatus including a frame, a reel and a drum carried by the frame, a. cable attached to the reel, means for directing a portion of the cable above and in substantially parallel relation with the platform, pipe engaging means on said parallel portion of the cable, means for swinging the drum to frictional engagement with a rotating member of the draw works to wind the cable, and means for unwinding the cable from the reel.

9. In combination with well drilling equipment including draw works having rotating members, a floor, and ,a platform spaced from said floor, pipe racking. apparatus including a frame, a reel, and a drum carried by the frame, a cable attached to the reel, means for directing a portion of the cable transversely of the derrick and'adjacent said said transverse portion, means for swinging the drum to frictional engagement with a rotating member of the draw works to, wind the cable, said means including an operating cable leading to a point adjacent said platform, and from the reel. 7

In testimony whereof I aflix my signature.

SAMUEL SPENCER HEMBREE.

platform, pipe engaging means on means for unwinding said'cable

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