US2673713A - Hydraulic well boring arrangement for rotary jumper method of boring - Google Patents

Description

2 Sheefs-Sheet l INGLER INVENTOR. MAURYCY IWA/@LER` "guw Army/EY ROTARY JUMPER METHOD OF BORING M. HYDRAULIC WELL BFRING ARRANGEMENT FOR March 30, 1954 Filed Aug. 18, 1949 MarCh 30, 1954 M R|NG| ER HYDRAULIC WELL BORING ARRANGEMENT FOR ROTARY JUMPER METHOD OF BORING Filed Aug. 18, 1949 2 Sheets-Sheet 2 /ffff INVENTOR. MAURYCY R/NGLER BY WM5.

Arron/ver Patented Mar. 30, 1954 UNITED srArEs PATENT, oFfFfI HYDRAULIC'WELLI BORING' ARRANGEMEN'I` f FOR` ROTARY AJUMPER, METHOD V0F BOR- Maurycy Ringler, Walbrzych, yPoland Application August 18, 1949,!SeriallNo. 111,058I

6 Claims. Y. (Cl. .255?38) The: present invention relates to wellf drill gear.

Ias .used in connection with the drillingbfioilwells. M0re particularly,. .theinvention relates. to .well drill gear ofthe jumpertypein which bymeans.4

of a fluid under pressure a rotary and anupand down' movement is imparted to the cutting tool assemblyof the. drill gear,A the .power required for operating. the drill gear .being supplied by a power unitsuch as a hydraulic.. motor.:

One object. of the'presentinventionis to proand. efficient control ofthe'power unit and .of the quantity and the distribution oi the rinsing liquid generally employed in connection. with drilling operations.. As a result, the:drilling-operations can-.be'conducted in accordance with the specifici properties of the strata through which a welll is drilled.

YAnother. object ofthe yinvention is .to provide` a vdrill gear of the gcneraltype above referred to. which permits an'ecientclearing ofobstructions i encountered bythe head of the drill during the drilling operation.l vMore specifically,y the f drill gear according .to the invention .permits to'direct.v the fluid under pressures@ thatzit is directedfb partly to the power Vunit andpartlyinto the drill..v hole :bypassingthe power unitorthe entire fluid y is directed into the drill hole foririnsing .the same.;V

Another .object of-v the inventionis uto. provide i a drill gear. which permits to direct therinsing fluid so `that it doesnot spill on thegiiooriof the'.

Fig. 2 isa section-al view of the middle partof the drill gear.

Fig. 3 is Va sectional vievvof the lowertpart of thedrill gear including the cuttingassembly.V

Fig. 4 is a sectionv takenL on lined-'4 of Figzi.v

Fig. 5 is a section taken on line '5-`5 of Figi. Fig. 6 vis a sectiontalen ony line GLi ofFigrl.

Fig. 7 is an enlarged fragmentary sectional View ofv the upper part of the drill gear showing the control means for the gear in one limit position;-

Fig. `8 is `a sectional viewfsimilar to: Fig-'7 vbutV shoWingthe-control means inan intermediatepo-n sition.y and` ll() videizcontrolmeans whiclrperrnit a convenient..

55 stop 39'.' Whenv the sleeve is n'its uppermost po- Fig. 9 is a sectional view similar to Fig.;.7 but showingthe control means inthe other limit position.

Before describing the'iigures in vdetail it .Shouldbe .mentioned vthat Fig. 2 should be visualized asa continuation of `Fig. 1 and that therdrilll gearis .1 in ,Vertical position when in operationrthe right;l hand end of Fig'.` 1 constituting thetop-of-the drilligear and the left hand end Aof,1",'ig.2 .the `bottom Vend ofthe drill gear.V -In the subsequent-def.

scription it is lassumed thattheqdrill gear isg-in;V

the aforementioned position.

Referring now to the iiguresirr detail the en -l tire drill gear with the exception ofthe drillhead I is encased in ashell 6. A ,bush 6l 'is securedtoithe top endof shell 6. `Ahollovv control member 51 is rotatably and axially displaceably inserted inl this bush as will be incre fullyexplained heresV inafter. lvlembercl also serves asconduit'for the admission of nuid under pressure andis pro-a` vided for this purpose at. its outer end with a conf.-`

ical thread 53.

able vdesign, to member 5l.

thread. This member'serves as thestaticnary Theuid under pressure is -fed 1 to the drill gearby connecting a conduit ofsuit- 1 The portionof vbush 6| `within shellis widened and provided with an;` internal thread. A member @t is threaded in thisg valve'body oi 'a control valvethe movable 'com-,-

ponent of which .is controlled by member 51; i

Member llil'suloports a sleeve composed'of sections i i9, 28 kand 42. joined by i'lttingsl andl. f The z top section 132 is `iixedly secured to .member 48:

Theentire sleeve. i9, 28 and 42 is disposed Vcoaxially with shell 6 spaced therefrom so as to form an annularspace 29 for the passage of the rins-` ing fluid.` The top portionlit of the sleeve forms a cylinder for a piston d3 slidablyseated therein..-

by` means .of packings M. Piston `litisslidablyv supported on a pipe [i6 `'by means'of a packingV 45. This pipe is `continued in a centric bore of member.; 48. The rod of piston 1311s formed by a pipe 'i0 c:

which leads'to a power unit 330i conventionalr design such as a hydraulic motor.`

component of the power unit secured to pipefl. 'I'his sleeve includes inlet and outlet ports for the nuid andis sealed by means of a packing 36. The sli'dable sleeve-coacts with a flexible stop 27 when This power- `unit includes a sleeveslide-ble relative to the" it reaches its lowermost position. rihis stopA is disposed within sleeve section 2B. The sleeve 3!) can move relative to piston i3 between the a'iore'm mentioned lowermost position and an uppermost position in which, it is stopped by a second flexible4 sition rinsing uid such as diluted loam can be fed through channel 35 to the power unit. As can best be seen on Fig. 2, channel 35 may then be in registry with a corresponding port in sleeve 3|). As a result, the supplied fluid enters the space below the piston thereby lifting the same. Lifting of the piston effects also lifting of pipes 2|, 20 and the drill head I. The lifting of the piston is continued until the power unit is stopped by the upper stop 39 whereupon the sleeve 30 is shifted down with respect to piston 43. In its lower position sleeve 30 closes channel 35 and opens a channel 34 whereby the fluid trapped in the passage-way of member above channel 35 forces the piston down while the fluid in the cylinder 42 below piston head 43 discharges through channel 34 and the longitudinal passages in members 2U, 2| and drill head I. When piston 43 reaches its lowermost position, sleeve 30 strikes stop member 21, is raised to its open position and the cycle is repeated.

The bottom part of shell 6 supports a threaded ring 5 which is composed of two sections. This ring forms an inwardly protruding portion 3 which serves as a catch for the drill head in case the shank thereof is unscrewed or broken during a drilling operation. For this purpose a collar Ia is provided which cannot pass through portion 3.

Referring now to the control means for controlling the operation of the drill gear, there is shown a valve member 5| threaded upon control member 51. This member 5I is hollow and is formed with a lower conical surface andan upper conical surface. The circumference of member 5I includes six guide grooves engageable by a screw 59 forthe purpose of preventing a rotation of member 5| but allowing a Vertical displacement of the same. Member 5| includes ports 50 which communicate with the interior of control member 51. The lower portion of the member coacts with a valve seat 49 formed by member 48. The upper portion of member 5I cooperates with a valve seat 52 formed in bush GI. rhis valve seat 52 communicates through channels 53 and 54 with channel 29 formed between the sleeve and the outer shell.

In the position of control member 51 and of member 5| as shown in Figs. 1 and 7, the lower cone of member 5I is separated from valve seat 49 and the upper cone presses against valve seat 52. As a result, fluid can flow through ports 5E) into pipe 45 thereby feeding the full now of the operational iluid to the power unit. The flow of uid to channel 29 for the rinsing iiuid is cut off by the upper cone of member 5|. When member 51 is moved downwardly into a position of Fig. 9 in which the lower cone of member 5| is seated upon sea-t 49, the flow of Huid through ports 50 is cut off and channels 53 and 54 are opened. Consequently, the entire uid is supplied to channel 29 and the power unit is stopped. In the intermediate position of members 51 and 5| as shown in Fig. 8 all the aforementioned ports and channels are open so that part cf the fluid is supplied to the power unit and part to channel 29.

As will be apparent from the previous description, cone member 5I in which member 51 is threaded can be axially moved by rotating member 51 in bush 6|.

The hereinbefore described control of the admission of fluid under pressure permits to direct the entire flow of Iiuid into channel 29. From this channel the fluid flows from bores 4 into the well thereby washing out any obstructions preventing an operation of the drill head or any other part of the drill gear. As will be apparent from the previous explanation, the power unit is stopped when the entire rinsing uid is directed into the channel. As soon as the obstruction has been removed the power unit is started again by turning control member 51 into a position in which at least part of the fluid is fed to the power unit. By regulating the portion of the fluid fed to the power unit the speed of the up and down movements of the cutting assembly of the drill gear can be conveniently regulated.

Control member 51 is provided with upwardly protruding teeth 51a which coact with downwardly protruding teeth 60 of bush 6I. Engagement of teeth 60 and 51a prevents a rotation of control member 51 during a drilling operation. As will be apparent, the drill gear hangs with its full weight on the teeth thereby pressing the same together. When it is desired to rotate member 51 for varying the distribution of the flow of fluid the drill gear is lowered to the bottom of the drill hole. As a result, the teeth are relieved of the Weight of the gear and the control member 51 can be easily rotated.

In case the drill head or the conduit bar connected to control member 51 is jammed by an obstruction, member 51 can be lowered by lowering the conduit bar connected thereto. As is previously explained, a lowering of member 51 opens channels 53 and 54 thereby admitting fluid into channel 29 from where it reaches the drill hole through bores 4.

To prevent lifting of uid to the top of the drilling hole when it is desired to lift the drill gear for instance for inspection the gear is rst lowered to the bottom of the drill hole and then channels 53 and 54 are opened by turning control member 51 in the appropriate direction. Rinsing fluid can now freely pass through channel 29 and bores 4 of the drill gear.

For the purpose of rotating cutting head during a drilling operation, sleeve section I9 is connected at its lower end with a pipe |8 by means of shock absorbing elements 8, 9, I0 and II. This pipe I8 is secured at its upper end to a pipe 20 operatively connected with the power unit and the lower end of pipe I8 is operatively connected with the cutting head I. The outer wall of pipe I8 is formed with slanted grooves I6 engaged by lugs I5 of a ring I3. This ring has on its periphery ratchet teeth which coact with two pawls I2. These pawls retain ring I3 during the downward movement of pipe I8 and permit rotation of pipe I8 in unison with the cutting head through an angle of a few tenths degrees during each part movement of the cutting assembly.

What is claimed, is:

l. In a well drill gear of the jumper type in which by means of fluid under pressure a rotary and an up and down movement is imparted to a cutting tool assembly, a shell, the bottom end of said shell guiding the cutting tool assembly, the operating fluid being admitted at the top end of said shell, sleeve means xedly mounted within said shell concentric therewith, a power unit for the cutting tool assembly mounted within said sleeve means, said shell and said sleeve means forming an annular channel therebetween open at the bottom end of the shell near said cutting tool assembly, and valve means at the top end of the shell for selectively directing the operating fluid either to said power unit or to said channel for use as rinsing fluid or partly to the power unit and partly to said channel, the said valve means comprising a stationary valve body secured to said sleeve means and formed with a port in communication with the power unit and with a port leading to said annular channel respectively and a movable hollow valve body having outlet ports mounted in the shell axially displaceable relative to the stationary valve body and communicating with a supply of iuid under pressure, the said movable valve body closing in one position the ports communicating with the power unit and in another position the ports leading to the annular channel and in a position intermediate to the said two positions opening all the ports for the purposes aforesaid.

2. A well drill gear as dened in claim l, wherein pipe means are secured within said sleeve means coaxially therewith leading from the top of the sleeve means to the power unit and supporting said cutting tool assembly, the top end of said pipe means communicating with the respective port in said stationary valve body, and wherein said movable valve body comprises a fluid inlet member mounted at the top end of the shell axially displaceable relative to the shell, said member having said outlet ports for disu charge therefrom of the pressure iluid fed to the inlet member from the source of supply, the bottom end of the inlet member forming a first valve member adapted to be seated upon said port communicating with the pipe means for closing the ingress of iluid into the pipe means, and an intermediate portion of the inlet member forming a second valve member, said second valve member controlling the port of the stationary valve body leading into said annular channel, the said valve members and the said ports of the movable and the stationary valve body being disposed in a relative position in which the channel ports are covered by the second valve member when the first stationary valve member is seated upon said valve body and are uncovered when the inlet member is axially lifted into a position above said stationary valve body.

3. A well drill gear as dened in claim 2, in combination with a guide bushing secured to the top end of said sleeve means, the said bushing being formed with internal threads and the said inlet member being formed with external threads engaging each other for axial displacement of said inlet member by rotating the same7 said bushing further having external upwardly extending teeth, a second bushing secured to the top end of said pipe means and having downwardly extending teeth engageable with said teeth of the rst bushing, substantially the entire weight of the drill being suspended on said two sets of teeth for preventing rotation of the inlet member relative to the bushing during the drilling operation, whereby resting of the cutting tool assembly upon the bottom of the ell relieves vthe axial pressure between said teeth thus permitting rotation and axial displacement or" Ythe inlet member for the purpose of varying the positions of the valve members supported thereon relative to said stationary valve body and the respective ports.

e. A well drill gear as dened in claim 3, wherein the said sleeve means extend from said power unit to the cutting tool assembly, and wherein shock absorbing means are included in said sleeve means between the power unit and the cutting tool assembly.

5. A well drill gear as dened in claim 4, wherein said sleeve means between the power unit and the cutting tool assembly comprise two pipe sections, and wherein unilaterally acting locking means connect said two pipe sections, said locking means including a slanted guide groove in one pipe section and a lug extending from the other pipe section and engaging said groove so as to impart a limited rotary movement to the cutting tool assembly for each up and down movement thereof.

6. A well drill gear as defined in claim l, wherein the bottom end of said shell is provided with inwardly extending flange means, and wherein said cutting tool assembly includes an outwardly protruding portion wider than the shell opening and said ange means for retaining the cutting tool assembly within the shell in case the said assembly becomes separated from its support during a drilling operation.

MAURYCY RINGLER.

References Cited in the ile of this patent UNITED STATES PATENTS Number Name Date 1,983,287 Grinnell et al Dec. 4, 1934 2,033,527 Kitching Mar. 10, 1936

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