US1660449A - Deep-well tool - Google Patents

Description

Feb. 28, 1928. 1,660,449 H. D. KINNEY DEEP WELL TOOL Filed Nov. 24. 1926 2 Sheets-Sheet 1 I 1 Qt gwwnloz 3 HD- R I Z I Quoting Feb. 2s, 1.928. 1,660,449

H. D. Kl NNEY DEEP WELL TOOL Filed Nov. 24. 1926 2 Sheets-Sheet 3 Patented Feb. 28, 1928.

UNITED STATES PATENT OFFICE.

HOWARD n. KINNEY, or EL nonnno, ARKANSAS.

DEEP-WELL 'roo Application filed November 24, 1926. Serial No, 150,493.

1 This invention supplies a toolwhereby pipe, rods, tools and the like lodging in a deep well may be readily removed. I

The invention contemplates a tool including a one-piece barrel having a shank to which the operating part, such as a rod, may be coupled, slips within the barrel, and combined guide and retaining means for directing the slips in their movements and preventing displacement thereof from the barrel.

While the drawings illustrate a preferred embodiment of the invention it. is to be understood that in adapting the means to meet specific needs and requirements the design may be varied and such other changes in the minor details of construction may be resorted to within the scope ofthc' invention as claimed, without departing from the spirit thereof. i i

For a full understanding of the invention and the merits thereof, reference is to be had to the following description. and the drawings hereto attached, in which,

Figure 1 is a side view of'a deep well tool, embodying the invention. i e

Figure 2 is an enlarged sectional view on the line 22 of Figure 1.

Figure 3 is a sectional view on the line 33 of Figure 2.

Figure 4 is a transverse the line H of Figure 3, looking in the direction of the arrows.

Figure 5 is a similar sectional View on the line 5-5 of Figure 3, looking in the direction of the arrows.

Figure 6 is a detail perspective View of one of the combined guides and retainers.

Corresponding and like parts are referred to in the following description and designated in the several views of the drawings by like reference characters.

The tool comprises a body including a barrel 10 and a shank 11, the latterhaving an externally threaded terminal portion to which a rod or other part is adapted to be coupled for lowering the tool into a well and withdrawing it therefrom. The body, including the barrel 10 and shank 11, is a one-piece structure and the opening 12 is enlarged for a short distance atdiametrical- .ly opposite points, asindicated at13. The

enlarged'portion 13 of the opening 12 is provided with shoulders 14 and 15 at opposite ends and tapers throughout'its length,

the smaller end being adjacent the lower end sectional view on of the barrel and the larger end remote therefrom. and terminating in the shoulder 15. Longitudinal grooves or channels 16 V are formed within the inner wall of the bar rel at diametrically opposite points and terminate a short distance from the inner end of theopening 12, as indicatedmost clearly is oblongand comprises a major and a minor axis. The grooves or channels 16 are ,lo cated in line with the minor axis of the enlarged portion 13 of the opening 12 formed depth within the barrel. The outermost walls of the opening 13 are in line with the major axis, as indicated most clearly in Figure 3. A combined guide and retainer is secured within each of the grooves'or channels 16 and consists of a bar 17 having a raised portion 18 upon the side facing within the open ing of I the barrel. Opposite sides of the raised portion 18 of each of the bars 17 incline in opposite directions to conform to the inclination of the outermost walls of the opening 13 in line with the "major axis of said opening. The bar 17 fits snugly within the groove or channel 16 and comes flush with the inner wall of the opening 13.

-Longitudinal slots 19 are formed in opposite sides of the barrel 10 adjacent the upper ends of the grooves or channels 16; Transverse slots 20 intersect the lower ends of the: longitudinal slots 19 and receive outer extensions 21 at the upper ends of the bars 17, whereby to prevent longitudinal displacementof said bars and to sustain the end thrust thereon when the tool is in operation. Machine screws 22 and 23 connect each of the bars 17 with the barrel 10, the screws 23 operating in the slots 19, and the screws 22 fitting snugly in openings formed in opposite sides of the barrel. screws 22' are removed and the screws 23 loosened, the bars 17 may be moved upward ly within the opening 12 of the barrel, as indicated by the dotted lines in Figure 2,

whereby to admit of placing slips 24 in When the i .The slips 24 are of similar or like formation, each being of semi-circular outline and. of wedge-formation, and disposed-upon opposite sides of the raised portionslS- of the bars 17 The edges of the slips 2% are in contact with the inclined sides of the parts 18- and are adapted to ride thereon, whereas the outer side is adapted to ride upon the walls I of the opening 18. As the slips 2a move upwardly, they correspondingly separate due to the taper of the parts 18, and the taper of the opening 13. \Vhen the slips 2e are at the upper end of the opening 13, they are separated a maximum distance, and upward movement is limited by the shoulder 15, and

inward displacement prevented by the parts 18 lying between the inner edges of the slips. The inner or active faces of the slips 2% are toothed to enable them to obtain a firin and positive grip upon the tool, pipe, or'fother part to be removed from the'well.

In the operation of the tool it is lowered inl to the well from which the part is to be removed, by means of a rod or cable coupled to the upper threaded, end of the shank 11. When the tool reaches the part to be removed it continues its descent, the part being direct ed into the opening of the barrel by the lower beveled edge thereof and passing upwardly within the barrel andcoming in contact with the slips 24: causing the same to likewise move upwardly. As the slips 24 move upwardly they at the same time, separate, and at a do terminate point the part entering the opening of the barrel passes between the slips, and

. it is required to remove the slips 24 from the barrel 10, the screws 22 are withdrawn and the screws 23 loosened to admit of disengage ment of the projections 21 from the slots 20, after which the parts 17 are moved upwardly to the position indicated in dotted lines in Figure 2, thereby clearing the slips which are free to move inwardly to clear the shoulder 14 so as to be withdrawn through the lower end of the opening 12. When the slips 24 are in place they are retained in position by meanso't the raised portions 18 of the bars rel, slips within the enlarged opening of the barrel, combined retainers and guides between'the inner or opposing edges of the slips and let into the inner wallof the barrel at diametrically opposite points, fastenings connecting the lower ends of the combined retainers and guides to the barrel and other fastenings adapted to operate in the slots formed in the sides of the barrel and serving to connect the upper ends of the combined retainers and guides thereto. p I

2. A tool of the character specified coinprisinga barrel having a portion of its open ing enlarged and tapered throughout its length and provided in opposite sides with longitudinal and intersecting transverse slots, and having inner groovesor channels, slips within the enlarged portion of the opening, combined retainers and guides disposed be tween the inner or opposing edges ofthe slips and let into thesaid grooves or channels, and having outer projections to snugly fit within the said transverse slots, fastenings connecting the lower ends of the combined retainers and guides to the barrel and other fastenings operating in the longitudinal slots and connecting the upper ends of the said re tainers and guides to the barrel.

In testimony whereof I afiix' my signature.

HOWARD n. KINNEY. 1,. 5.

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