US1546649A - Anchor attachment for spudding shoes - Google Patents

Description

July 21, 1925. 1,546,649

P. J. GLYNN ANCHOR ATTACHMENT FdR SPUDDING SHOES Filed Aug. 30, 1925 Patented July 21, 192 351 entree rates orrics.

PATRICK J'. GLYNN, 0F TULSA, OKLAHOMA.

ANCHOR ATTACEMENT FOR 'SPUDDING SHOES.

Apphcation filed. August 30, 1923. Serial No. 660,082.

dent of the city of Tulsa, in the county of Tulsa and State of Oklahoma, have invented certain new and useful Improvements in an Anchor Attachment for Spudding Shoes; and I do hereby declare that the following is a full, clear, and exact description of the samereference being had to the accompanying drawings and to the numerals of reference marked, which form a part of this specification.

This invention relates to an anchor attachment for spudding shoes.

In drilling oil wells, it is common practice to dispense with the use of the walking beam on the derrick when it is desired to carry on the operation known as spudding, and position a sp-udding. shoe against the drilling cable and connect the spudding shoe with an operating crank so that the drilling tool is quickly raised and lowered by the actuation of the spudding shoe against the cable.

Inorder to prevent excessive wear upon the cable and to avoid lost motion and expedite the operation of spudding, it is de sirable that the sp-udding shoe be anchored against improper vertical movements. To this end, I have invented an anchor attachment in connection with a spudding shoe that may be quickly applied and secured to parts of the derrick for maintaining the spudding shoe in the proper plane of reciprocation.

The invention comprises the novel structure and combinations hereinafter described and more particualrly pointed out and defined in the appended claim.

In the accompanying drawings which illustrate a preferred embodiment of this invention and in which similar reference numerals refer to similar features in the different views.

On the drawings:

Figure 1 is an elevational view of the anchor attachment involving this invention.

Figure 2 is a top plan view of the attachment.

Figure 3 is an end elevation of the attachment.

Figure 4: is a sectional view upon the line l4i of Figure 1.

Figure i fragmenta y eva eae view of a derrick showing the application of my invention. 7

As shown on the drawings:

In. referring to the drawings which illustrate one embodiment of this invention there 'is shown an arcuate spudding shoe 1 having an arcuate groove in its upper surface and a .pair of laterally extending trunnions 2. A, V-shaped member or clevis .3 having its arms terminate in hooks 4: and so spaced apart as to straddle the spudding shoe, is pivotally connected to the said shoe bv means of said hooks engaging the truri nions 2.

A collar or ring 5 surrounds the V-shaped member 3 just above the spudding shoe, and is secured thereto by bolts or rivets or in any suitable way. Opposite sides of said ring are bulged outwardly to provide recesses 6 for receiving cables or tie ropes.

lVhen it is desired to use the spudding shoe in connection with the spudding operation, it is applied to the drilling cable and anchored to the derrick as shown in Figure 5. A simple way of applying the spudding shoe consists in removing the clevis 3 and positioning the spudding shoe upon the upwardly extending part 7 of the drilling cable adjacent the drum. Then applying the clevis and connecting it by a cable 8 with the crank arm 9 of a motor. A pair of anchor lines 10 and 11 attached to opposite sides of the ring 5 may then be fastened to appropriate parts of the derrick for anchoring the spudding shoe against undue vertical movement. In the drawings, I have illustrated one method of securing the anchor lines 10 and 11; the anchor line 10 being secured to the floor of the derrick while the anchor line 11 is trained over a pulley 12 mounted upon one of the vertical standards of the derrick at any suitable height and then brought down and attached to the head arch post 13.

The spudding tool is supported upon the lower end of the drilling cable 14 which passes through the floor of the derrick. The other end of the drilling cable is attached to asuitable drum 15; the intermediate portion of the cable being trained over a pulley mounted upon the top of the derrick (not shown). During the spudding operation the drum 15 may be controlled in any well known way as the same involves no part of this inventiop During the spudding operation, the motor Will reciprocate the cable 8 and thereby raise and lower the sp-udding tool for drilling the Well as is Well known. The anchor attachment involving this invention Will maintain the spudding shoe in operative relation with the drilling cable and prevent all looseness in operation with the consequent Wear upon the drilling; cable. Further, the sp-uddin-g shoe Will be substantially maintained in a. rectilinear line of reciprocation thuswise insuring a complete stroke of the spudding shoe.

In View of the foregoing, the spudding operation is speeded up and the Wear and tear on the cable and spudding' shoe. is greatly reduced.

I am aware that numerous details of construction may be varied through a Wide P. J. GLYNN.

Witnesses J. M. HENoH, CLYDE W. HAMMON.

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