US1833477A - Well drill - Google Patents

Description

Nov. 24, 1931.

L. TOMANEK \WELL DRILL Filed Sept. 4, 1930 Imf enf g 1 272022 MM w encountered in drilling for a novel and efiicient I ing the invention 10 Patented Nov. 24, 1931 UNITED STATES LOUIS TOMANEK, OF

PATENT CHICAGO, ILLINOIS This invention has for its object to provide deep-well drill of simple construction and easily operablein substantially the ordinary way common to devices of this character to effect drilling through all types of geological formations ordinarily oil, gas, or water. 11 the accompanying drawings illustratig. 1 is a vertical sectional view of a pipe lined drill hole in course of being extended to greater depth by means of a drill con-r structed in accordance with this invention.

Fig. 2 is an enlarged vertical sectional view of the pipe and the drill of the present invention disposed therein and illustrating details of construction of the latter.

Fig. 3 is a bottom plan view of the drill.

The drill of this invention comprises a cylindrical head 1 preferably integral with a point element 2, the element 2 tapered and of appreciably smaller diameter at its upper and larger end than said head 1. Between its ends said point element 2 is provided with a series of longitudinal recesses 3 alternating with longitudinal ribs 4 having sharp side edges 5 which partly overhang the recesses 3. The latter are spaced appreciably from the lower extremity of said point element 2 which is flat bottomed.

At the other or upper end ,ofthe head 1, there is provided a shank 6 which is externally threaded to engage in the threaded socket of the cylindrical block 7. The latter and the drill element 1-2, are provided with axial bores 8 and 9, respectively, communicating with each other. The upper end portion of the bore 8 is threaded to receive and en gage the eye-bolt 10 by means of which the block 7 and drill element'12 are suspended from the cable 11 or other elementby means of which said drill cated.

In the block 7 there is provided an inclined bore which communicates at its lower end with the bore 8 ofsaid block and is adapted to be suitably connected at its upper end with a tube or pipe 13.

The drill element and block 7 are preferably disposed within a pipe 14 of slightly element may be reciprogreater diameter than the OFFICE 7 so as to provide a free annular space about the last mentioned elements.

In operation, the lower end of the is set upon the pipe 14 ground concentric with the proposed drill-hole and the drill assembly is t ereupon reciprocated in such manner that,

will

after being raised, it

blow

lmpart consecutive to cause the lower to crush and pulverize ro er material. As said drop by gravity to s which will serve end of point element 2 ck or displace softpoint element penetrates the earth to a depth suflicient to bring the ribs 4 into contact be removed, the sharp with the material to side edges 5 of said ribs will cut into the same to remove it gradually, all material encountered being comminuted by the action of the drill element.

This comminuted material is preferably removed by means of'fluid under pressure, preferably water, supplied from a suitable' source through the 13, this fluid serving to carry the comminuted material up through the space betwe the pipe 14.

en the head 1 and The pipe 14 constitutes a guide for the drill assembly which,

in practice, rotates slowly or is rotated slowly during reciprocation either automatically or by force suitably exerted upon th 11, the pipe 14 being for intervals to cause it to terial in its path which away by the drill assem e suspension element ced downwardly at break down the ma may not be broken bly.

ractice has demonstrated, that if element 11 consists of a rope or cable, the drill assembly will automatically rotate durin reciprocation so that the sharp edges 5 o the ribs 4 will seldom strike place during consecutive twice in the same strokes. The drill assembly will also become slightly canted or will wabble about its longitudinal axis so that the drill hole produced thereby will be of appreciably cylindricalportion 1 w greater diameter than the hich operates below the lower end of the pipe 14 so that the latter 'may be quite readily Icl owered at intervals. mm as my invention:

1. A well drill head comprising an integral K member having a cylindr ical upper end porliead 1 and block I2 I r 11,933,477-

. tion andatapered pointportion constituting an inverted truncated cone, said point or- I i tion being provided with aplurality of ongitudinal recesses having their lower ends spaced from the lower extremity of said 1 head and having theirupper ends disposed substantially flush with the lower end of the cylindrical portion, said recesses defining I a series of-ribs having sharp side edges.

: '2. c A drill head comprising an integral I member having acyli'ndrical upper end.por- ,tion and a tapered point portion constituting an inverted truncated c0ne,-the base of which f corresponds 'in diameter with said cylindrical portion, said point portion equipped with aseries of longitudinal recesses spaced from the lower extremity of said-point portion v and terminating substantiallyat the lower end of said cylindrical portion, said-recesses v 20 defining-a series of ribs having sharp, paral v lel side edges extending coincidentally with c said recesses. 1- 3. drill head comprising an integral member having a cylindrical upper end por 5 tion and a tapered point portion constitut ing'a-n inverted truncated cone, the base of, which corresponds in diameter with said cylindrical portion, said point portion 1 equipped with a series of longitudinal recesses I .50 ,spacedfrom the lower extremity of said point portion and'terminating substantially atjahe lower end of said cylindrical portion, said recesses defining'a series of ribs having sharp,-parallel side edges extending co-- '55 incidentally with said recesses, the said. side edges vof said ribs being sharp and over hanging the mouthsof said recesses.

In testimony whereofiI have hereunto set a my hand this-2nd day ofSeptember, 1930..

, LOUIS TOMANEKY.

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