US1518492A

US1518492A - Deep-well-drilling apparatus

Info

Publication number: US1518492A
Application number: US560163A
Authority: US
Inventors: Duda Oswald
Original assignee: Reed Roller Bit Co
Current assignee: Reed Roller Bit Co
Priority date: 1922-05-11
Filing date: 1922-05-11
Publication date: 1924-12-09
Anticipated expiration: 1941-12-09

Description

LEMQ

Een., 9 i953@- o. DUDA DEEP WELL DRLLING APPARATUS F11-ed May 11.. 1922 Patented DecQS, 1924.

UNITE STATES PATENT. FFI'CE.

DSWAL) DUDA, OF HOUSTON, TEXAS., ABSIGNOR, BY HESNE ASSIGNMENTS, T REED ROLLER BIT GOMBANY, .A CRPOBATION.

DEEP-WELL-DBELING APPARATUS.

Application led Hay 11, 1822. I Serial No. 560,163.

To all whom t may concern.'

Be it known that I, OswALnDUDA, a cit;- zenof the United States, vand resident of Houston, in the co'unty of Harms, 1n the State of Texas, have invented certain new and useful Improvements in Deep-Well- Drilling Apparatus, of which the following is a specificatwn.

The invention relates to deep well drilling apparatus and particularly to means for pumping lubricant tothe cutters thereof. The 'pump is embodied in the apparatusitself and derives its power from the motion of the apparatus in the wall.

The invention consists in the features and combination and arrangement of parts hereinafter described and particularly pointed out in thc claims.l

In the drawings- F ig. 1 is a central, vertical sectional view of the apparatus, it being noted, however, that the section through the cutters is taken upon'two planes at 90 apart in relation to each other-,so that one of the inclined rotary cutters appears and also one-half of the cross roller cutter is shown.

' Figi@ is a vertical sectional view on an enlarged scale of the pumping apparatus combined with a portion of the lubricant holder.

In these drawings- 1 indicates the drill stem; 2, one of the inclined side cutters; 3, a portion of the cross roller cutter; 4 a lubricant holder in the form ol' an elongated tube arranged eoaxially with the drill stem and seated by its screw threaded lower end upon a socket member 5 which in turn is seated in the upperftnd of the reamer block 6 which carries reamer cutters?. rThe flushing fluid 'forced down through the drill stem passes along the annular space 8 between the drill stein and the lubricant holder 4, and thence through ports E) and a central passage 10 of the socket member and through the central channel 1l of the reamer block. from whence it passes through passage-s 12 in the. drill head to the cutters to flush the same, as is well known yto these skilled in the art.

The socket member 5 is provided with passages, one et' which is indicated in dotted lilies at 1?, tor conducting the lubricant from the holder It by way of tlh` annular passage 14 to suitable conduits that )cad the lubricant to the parts to be lubricated, such for instance, as the passage 15 which directs the lubricant to a central chamber 16 .from whence it is distributed through passages such as 17 to the bearings of the cutters. Other passages such as 18 conduct the -lubricant to the journal pins of the -rearncr cutters 7. A

At 19 is shown a piston inthe lubricant holder and when this is forced downwardly the lubricant is-forced through'the various passages mentioned to the parts to be lubricated. l

For forcing the piston 19' downwardly, a. portion of the flushing fluid is forced into the top of the lubricant holder above the l piston 19 and in order to accomplish this result a pumping arrangement is employed which includes apiston 20, a. cylinder 21 within which the piston reciprocates coaxially of the lubricant holden The cylinder 2l is carried by a block 22 which is screw threaded into the upper end of the lul bricant holder'4. This block or partition member has a screw threaded seat at 23 receiving the shell of a chamber 24 which is arranged as a coaxial extension of the lu` bricant holder, the said chamber being closed at its upper end by a cap Amember 25 screw threaded into connection therewith. At 26 there is an inlet for flushing fluid to the chamber 24, this inlet being protected by a screen 27 of any suitable form held in place by a screw threaded ring 28. The flushing water passes to the chamber 24 through a port 29 after passing through the screen.

The piston 2O is connected with a rod 30 the upper end of which is reduced and is slidably guided at nl in the cap member 25. On this rod a weight 32 is mounted to have slight longitudinal movement in relation to the rod and the rod is provided with a flange 33 at or near its lower end, and a nut 34 at its upper portion between which and the collar the weight 32 is arranged, it being noted, as above stated, that the weight is loosely mounted on the stem and can have slight longitudinal movement between the nut 3:1- and the collar 33. At each end of this weight a spiral spring is arranged as shown at 35, each of these springs bearing at one end upon the weight and at its opposite end upon the adjacent stationary structure such as the block 22 and the cap member 25. The weight is of somewhat smaller diameter .than the interior diameter of the chamber 24 and it is of less length than the said chamber so that room is provided for longitudinal movement of the stem or rod together with the weight, in relation to the chamber containing these part-s.

The piston 2() is provided with an inlet port'36, extending mainly coaxially of Athe piston and having a lateral branch at its upper end so that this piston will act in the` nature of au inlet valve whereby when the piston is raised so that the mouth 36 of the port 36 is above. the upper surface of the block 22, then the flushing liluid vwill pass lfrom the chai'uber 2li into the cylinder 2l, whereas when. the piston is lowered, as shown in Fig. 2, the inlet ofthefiushing fluid will be cut oil' from the. cylinder 2i.

The cylinder )'u'oviiiled with a discharge valve and as an example of this a valve 87 is shown adapted to be seated at 37 against the block 22 and this valve' is pressed upwardly to closed position against this seat by a spring 23S, the lower end of which rests upon a screw plug 39 seated in the. block 22. The discharge valve is guided in the block, but 'it controls the discl-iargc port leading from the cylinder 2l.

The fluid ailier passing this discharge valve, enters the top of the lulfiricant holder by way of the port 4l).

In the operation otthe apparatus the drill stem derives a vertical ribratory movement due to the roller cutter at the lower end thereof running over the. uneven surfaces being cut, or when ruiming over smoother surfaces the vibratory action of the drill stem will be d uc to the formation of the cutters which are provided with teeth ontheir peripheries supposingl the parts to be in the position of Fig. 2 and with the drill stem vibrating vertically and supposing the drill stem is et the uppeiI endv of its vibratory stroke, the 'discharge valve will be closed and the combined pump iston and inlet valve 20 also will be closed. hen the upper limit of this vibratory stroke of the apparatus is reached and the downward strol-'e begins` the weight 32 will not respond immediately to this change in direction of the stroke, diie to its inertia or momentum,

. and hence it will assume a position relative to the. drill stem in which it will hc raised so as to uncover the port 36', and thiswill allow the water to tlow'into the, pump cylinder from the chamber 24. it being noted that the relative up stroke of the piston 20 while the discharge valve is closed'` creates a vacuum under the piston 2O in the chamber 21. Now when the movement reverses, that is by the drill stem rising, the weight with its piston will again lag in respect to the movement of the stem, thus assuming a lowered the piston 20 to force the Waterfrom the cylinder 21 past the spring pressed discharge valve 37 which will open durin;f this pumping stroke of the. piston 20 and the weight 32,

and thus the water will be forced from the the source from which the water is derivedto be forced by the pump into the upper end ofthe lubricant, holder and it will be understood that the above specification anddrawings are presented in an illustrative way and are not to be considered as restrictive upon the scope of the invention, which is defined by the appended claims. The springs at' opposite ends of the weight cushion 'the stroke of this weight and also aid in moving the weight in opposite directions, for instance, when the weight moves upwardly relative to the drill stern the upper spring is compressed and reacts at the proper time 'to force the weight with its rod and piston downwardly and the saine is true when the downward movement of the weight takes place, namely, it compresses the lower spring and upon reversal of the. action this spring aids 'in throwing the weight upwardly.

As before stated, the weight has some slight movement freely on the rod 30 so that in its action in either direction it will.

' movements is out ot time with the vibrations of the drill stem and hence the pumping zaction results, this being due to the relative movement between the lubricant holder and the parts attached thereto and the weighted piston, it being understood that the lubricant holder and its attached parts conform in their vertical vibratory movements exactly with those of the drill stem because they are permanently attached thereto.

The fluid for operation in the pump can be derived from outside the-drill stem.

' What is claimed is 1. In deep Well drilling apparatus, a drill stem, cutters, a lubricant holder, and a pump for forcing the lubricant Ato the parts to be lubricated, carried 'by the apparatus and.

operated by the vibration of the apparatus, due to its'working against-the material being' cut, said pump having a piston reiproJ y position in relation to said stem, and causing\cating relative to the lubricant holder substantially as described.

stein, cu'rfzers, e lubricant holder, anda pump for, forcing the lubricant to the parts to be lubricated, carried byl the apparatus and baring a pisicnl reciproeated relaive to the lubricant holder by. the vertical vibration of tlfe apparaus, due to its Working against the material being cut, substantially as described. v

3. In deep well drilling apparatus, a-drill stern, toothed rotary cutters giving to the drill stern vvertical vibratory motion during the cutting operation, a lubricant holder and a pump for forcing the lubricant to the cut ter bearings having a piston reciprocated,

relative to the lubricant holder by the vibraicry motion of the drill stein, substantially as described. y

d ln deep 'well drilling apparatus, c. drill stem, entiers, a lubricant holder, and a pump for forcing' the lubricant no the paris to be lubricated, carried by the apparatus and operated by Idie Vibration ci thev ap par-eins, due to its Working against the inaterinl being cui, seid pump orcing duid into ille holder, substantially as described.

' being disposed coamally with the drill stem and the lubricant bolder, substantially as described. f

7. ln combination in deep Well drilling apparatus, a drill stem, a lubricant holder arranged coaxially with the stem, a pump a discharge valve for said cylinder opening into the lubricant holder, a. piston operating in the cylinder, means for the in iet or fluid into the cylinder when the piston rises,ja Weil ht connected with the piston, said weight eing operated vertically by the Vertical vibration to which the drill. stem is subjected while working in the well, to thereby operate the piston, substantially as described. 1

8. Irl-combination in deep Well drilling apparatus, a drill stem, a lubricant holder arranged coaxially with the stem, a pump cylinder, a discharge -Valve for said cylinder ,opening into the lubricant holder, a iston cper'atingin the cylinder, means for tie in-' A. let ci? iluiu into the cylinderiwhen 'the pision.

rises, a Weight connected Vwith the pistou, said weight being-operated vertically by. the vertical vibration' to which the drill stern is subjected While working in the Well, to

' as described,

thereby lopende the piston, the said duid*l inlet means consisting of a port through 'the piston which when the piston israised receives the fluid to be forced and directs it into the cylinder, substantially es described.

.9. ln combination in deep Welldrilg l0. ln combination in deep Well drilling apparatus, a drill stem, a lubricant holder,

arranged coax'ially with the stem, a pum-.p cylinder, a discharge valve for said cylinder opening into the lubricant holder, a pistou operating in the cylinder, means for the inlet ci duid into the cylinder when the pision rises, a Weight connected with the iston, said weight being operated vertically y the vertical vibration to which the drill stem is subjected while working in the. Well, to thereby operaie the piston, and a spring at',

each end of the Weight "to cushion the action 'o the same and to force said Weight longitudinally, substantially as described, i

l1, lin combination in deep Well drilling apparatus, a drill stem, cutters, a lubricant holderarranged ccaxially Within the drill pistonv and cylinder arranged stem, a pump lq coaxially with and at the upper end of lubricant, holder, a Weight connected with the upper end of the piston, .a chamber in which said Weight moves, a. port for inlet of fluid to said chamber, a discharge valve for controlling the outlet. of -iuid from the cylinder to the lubricant holder, and means for the inlet oi fluid to the cylinder from the said chamber, substantially as described.

12.(ln combination in deep Well drilling apparatus, a drill stem 'having vertical vibration, a lubricant holder Within the stem, and a pump operated from the vibratory movement oi' the stem, saidpump consisting of a cylinder and piston and means for the inlet and discharge of fluid to the cylinder isc to be `forced into the-upper end of the lubri cane holder, a rod connected with the piston,

Va weight mounted on said rod to have movement along the rod, and means on the rod affainst which the Weight abuts to edecz a hiimrner blow thereon, substantially as de scribed u 0 i3. :in combination in deep Well drilling ports to be lubricated, .a pump operated bly the vibration of the drill stem, said .pump

lil

forcingr fluid into the lubricant lioldcrabovc the piston, substantially as described.

14. ln combination in deep Welldrilling apparatus, a drill Stem,- a lubricant holder arranged coerxially therewith, a block closing the upper end of the lubricant holder, a chamber the shell of which is supported .on the block, u Uston rcciprocating in the block and having a rod extended through the Said chamber, n. weight mounted on the rod, means for the inlet of fluid into ille top of thc chambcr and means for the inlet of Snfl fluid from Said chfimhcr to the cylinder in mimosa which the piston rcciprocates, and a. clis- -of the lubricant holder, Substantially -as clescribcd.

15. In Conxbination in deep well drilliiig apparatus, a drill stem., a coaxially arranged lubricant holder, and a p'ump opcratcdzoy the vibration oi the drill stem, said pump taking the. Bushing! water 4from thc drill stem sind forcing' it. into thc ripper end or" the lubricant' holdcr, Substantially as (lcln testimony wiwi-cof l :iilix mv sig'xiaturc.

SYVAL) DUDA.