US2215514A - Well device - Google Patents

Description

SPt 24, 1940 R.- R. MaoGRl-:GOR 2,215,514

Y WELL' DEVICE Filed July 25, 1938 2 Sheets-snaaiI l Fi TZ. jf l @gm Ff/gm? f 14 15 il@ f3 zz f 4f l ,9A .9J f

I "4f j j?. ,l I I' l IN VEN T l /O A j A TToR/VE Y sept. 24, 1940.

j??? @gi R. R. MaoGREGoR A 2,215,514

WELL DEVICE Filed July 25, 193s 2 Sheets-Sheet 2 /N VENTQR,

A TTORNE Y 35 f uopportunity.- such as upon reaching any perfo- 55, bers and features, all as S110@ ill certain ern- -Pstetfee'sepe 24,1940

fUNl-TED STAT-r.

nnvlcn ltobertoy MacGregor, Long Beach, -Calif., as-

signor, by mcsne assignments, of one-third to Orvel C.Slavens, one-third to LaurenceA B.

MacGregor,

and one-third to Robert Roy MacGregor-ian of Long Beach, Calif.

Application July 25, 1938, Serial No. 221,128

claims.

This invention relates to well devices, and pary ticularly to aform of brush adapted to eiectively clean liners, and the like.

The present invention has been found in actual practice to readily clean the porforations of liners, removing all sediment of every lcharacter so that non-producing wells, which would produce otherwise if the oil was permitted to enter .the liner, may have production reestablished.

An object of the invention is the provision of a device which is so constructed as to readily withstand abuse, hard usage, andstill perform excellent services in the scraping and cleaningof Well tubing and thelike.

Another object of the invention resides in the l novel construction of a well cleaner, whereby the main cleaning'elements may be readily and inexpensively removed and new ones substituted,

which does not require skilled labor for the said removal and renewal of such elements, and which as to cost of. manufacture is superior to devices for the vpurpose of'cleaning tubing, casing, and

In the practice -of the invention, I .have provided a plurality of wires carried by a cylindrical body, the' wires of rwhich project radially from the -bodyand in a spiral arrangement, whereby the Awires are assured of contacting every porvtion of a tubing or casing within whichthe said tool 'is received, thus assuring that a proper cleaning of the tubing or casing results. Furthermore, the tool is so constructed 'that the insertion of said tool with its wires within a, tubing or casing does not break the wires but permits the wires to readily move radially-when given the rated area of the tubing or casing.

In actual practice, it has been found that device of the character about to be disclosedmay be inserted within a well hole through the me- -dium of a wire line, and after a few hours of Working the tool; that the casingvor tubing will useful provision, formation, construction, association, and relative arrangement of parts, membodiments in the accompanying drawings, described generally, and more particularly pointed out -in the claims.

-In the drawings; A

Figure 1 is a. fragmentary elevation of the improved tool as an entirety,

Figure 2 is an elevation of the tool in slightly modified form,

Figure 3 is a sectional view on the line 3--3 of Figure 1, L

Figure 4 is a sectional view on the line 4-4 of Figure 1,"and, t

Figures 5, 6, 'Z and 8 are-elevations, partly in vertical section and fragmentary, illustrating the operation incident to the insertion of wire mexnl5 bers between two elements of the invention for the purpose of securing said wire members'in position to said elements.

Referring 'now with particularity to the drawings, I have shown in Figure 1 a complete embodiment of my invention and which I herein designate I. A modified form 4of the invention is shown in Figure 2 and designated as an entirety by 2. Both' devices I and 2 operate on the same principle so far as action' of theinstrumentalities is concerned,y save and except that that form of the invention 2 is capable of negotiating tortuouspaths. In this respect, the instrumentality 2 has articulated members for the purpose named aforesaid. 'Ihe instrumentality I, so far asl separate components thereof are concerned, includes a man- -drel orpull rod 3, a sleeve or body 4 surrounding the mandrel, and brush members 5 locked between the mandrel and the sleeve or body and radially or tangentially extendedmoutwardly from the periphery of said sleeve or body for a given area or length thereof. Slidably fitted' upon the sleeve or bodyare spring guide members 6 and 1, the brush members being interposed therebetween. The spring guide membersin both instances are of identical construction, both including spaced apa- rt rings 8 and 9 surrounding the sleeveor body with bowed leag springs Ill spacedly secured between said rings. The body or sleeve isthreaded adjacent one end II and there is secured to .this end I'I la vmember I2, which includes a box I3 for threaded "engagement with II, a squared area I4 whereby the member I2 may be manipulated or rotated for. jolnder with the sleeve or body, and a pin ISN Adapted to be secured to the pin I5 is a member I6 having a box Il and a bail I8.

Referringto Figure'4, it will be observed that the mandrel is threaded-at I9 to receive a nut 55 20. The purpose of this nut is to secure adjustment between the mandrel and the body when the wires are in position between. the mandrel and body. To completethe device, a round headed cap nut 2| is threaded to the sleeve at 22.-

Referring now to Figures 5 to 8, inclusive, I preferably so position the mandrel relative tothe sleeve that a plurality of diarnetricI bores may be formed in both said members, the bores being adapted to align under certain conditions. To

effectively provide for such bore alignment, I

have provided adjacent one end of both the sleeve and mandrel, bores 23 and 24, and these bores when aligned as shown in Figure 5, may have received therein apilot .n 25, see Figure 6. 'Ihis pilot pin positions the sleeve and mandrel so that the openings adapted to receive the wire brushes may be readily formed by drilling or otherwise.

As stated, I may form the bores in the mandrel and sleeve in any direction desired; however, assuming for the instant thatall of said bores are radial, for a given length of said sleeve and mandrel, the bores are of the same diameter,as indicated in Figure 6 at 26 and 21. In each instance, I preferably form the bores so that the bores are of a slightly greater diameter than the bunched diameter of` the wires forming the individual A- brushes, as shown in Figure '1. In Figures 1 and 8, it will be observed that a given area of the vdrilled openings of the sleeve are rearned, thereby makingv holes greater in diameter than the diameter of the openings 26 oi the mandrel, as indicated at 28.

In the drilling of the various openings of both- -the sleeve and body, and particularly when the sleeve and body have been locked in a denite position by the pilot pin, I preferably so form the bores that after the wirel brushes are received therein, that a wire brush area from top to bottom defines a spiral, which in the present.

,j In order to drill holes either radially, tangentially, or otherwise, through both the mandrel and the sleeve, I have provided at 54 a pilot pin` opening and at 55 is a drilled opening inA the mandrel, whereby when the pilot pin openings are in alignment and the pilot pin inserted within said openings, the holes for receiving the brushes are in alignment, The mandrel 53 is formed with a threaded area 56 and a reduced diameter threaded portion 51. An adjusting nut 58 is carried on the threads 56, this nut abutting against an end of the sleeve 52 so that the mandrel may be forcibly moved in one direction relative tothe sleeve. A ball 59 is provided with a threaded opening forthreaded engagement with 'Ihe second section 60 of the device includes, as before, the mandrel 6l and sleeve 62, the sleeve in this instance being internally threaded at 63 to receive a threaded nut 64. This threaded nut has anl 'enlarged diameter portion which is threaded at 65 to receive a socket nut 66. In

-the holes at certain portions of the sleeve.

this regard, it is to be observed that the end 61 of the nut 64 is curved so as to conform to the curvature of the ball 59. This construction affords what may be termed .a ball and socket arrangement. The section 6,0 is similar in construction tothat shown in Figures 5 to 8, inclusive.

The operation, uses and advantages of the invention just described are as follows:

Viewing Figure 6, it will be seen that the openings adapted to receive the brushes 5 are in alignment. These brushesare preferably formed of a plurality o-f spring wires. The spring wires are inserted through the aligned openings of the mandrel and the'y sleeve, and after being properly positioned so ythat end lengths thereof extend substantially equal distances from the periphery of thesleeve, the brushes are locked in working relationship with the sleeve and mandrel. This is accomplished by removing the pilot pin 25 and then, in the case of the form of the invention depicted 'in Figure 1, rotating the nut 20 (see Figures 4, .f and 8) so that the mandrel is forcibly moved outwardly of the sleeve. This forcible movement will cause the brushes 'to be clamped between the mandrel and the sleeve, ,as illustrated in Figure 84 at 10, 1|, 12 and 13. Thus, the mandrel is placed in tension and the sleeve in .compression In order that there should be an equal gripping action upon all of the brushes by the mandrel f and sleeve, it has been found necessary to ream As a rule, a large number of brushes are utilized and the clamping action that occurs against each" `brush when the mandrel is moved relative to the sleeve is such as to substantially occur in a progressive manner. Hence, it will be recognized upon viewing Figure '7 that the brush at 14 will actually move a greater distance than the brush at 15 confined at another zone of the device. Adjacent the top of the device, and viewing Figure l with its bail, the bail being considered the top portion, the drilled openings of the mandrel and the sleeve conform more as to diameter than do those openings from the central zone downwardly of the device. The Iconstruction is such that substantially equal gripping is effected upon the wire brushesfrom top to bottom.

The same procedure of alignment of openings, .the insertion of the brush members, and the like, occurs for that `form of the device shown in Figure 2. A

When it is desired to operate the tool, the 'same may be lowered in any approved manner within Well tubingor casing by a wire line or other instrumentality, a wire line being shown at 90. If it lis desired to scrape the interior 0T the tubing or casing, the' device may be of sufficient weight to drop within the tubing or casing, and then by moving the same upwardly or downwardly within the tubing or casing, properly clean the walls thereof.

form shown in Figure 2 so that the device will4 not bind within the tubing.

After the device has been run and removed from the tubing orv casing, an operator may examine the vbrushes and if any of the brushes have.

been worn to a considerable extent or bent so. as

to render the same non-usable, the brushes may lthe device are the-brushes, and that these brusheskl are of very simple construction consisting, as

shown, of elongated bunches of flexible wire adapted to be clamped or locked in a given position between the mandrel and the sleeve. Thus, any replacement, means replacement of brushes only, an item of small expense.

The leaf springs i0 aid in guiding the tool as it enters either the casing or tubing in its downward movement' and during reciprocation of the `tool to perform a cleaning action.l To limit movement of the leaf springs I0 in one direction, I'have provided stop' collars 9|. In this manner, the leaf spring collars 9 are prevented from damaging the brushes 5. Y

Furthermore, the spiral arrangement `of the brushes assures -that the brushes will contact all of the interior surface of the tubing or casing during reciprocation of the tool.

It is obvious that various changes and' modifications and variations mjay be made -in practicing the invention in departure from the particular embodiments of the invention shown herein, without, however,'departing from the true spirit thereof. v

I claim:

1. A device adapted to clean well tubing, casing liners and thelike, comprising a sleeve, a mandrel received within said sleeve, said mandrel and sleeve being provided with registrable openings extending therethrough, fiexible wirel brush forming elements extending through said openings and extending from spaced points of said sleeve,- means for temporarily locking said sleeve and mandrel with their openings in coaxial relationship Ato permit adjustment of said brush forming elements, and means to shift said mandrel'with respect to said sleeve tolock said brush forming elements in position.

2. A well device for cleaning tubing, casing liners, and the like, comprising an articulated body, .brush members extended from the periphery of said body in espiral arrangement. guide 4members positioned on said body above and besaid body and brush membe s as the device is low the brush members for centering and guiding reciprocated, and means for reciprocating thedevice in a tube, casing liner, and the like.

3.' A well device for cleaning tubing, casing liners, and the like, comprising an articulated body, wire brush members extended from the periphery of said body in a spiral arrangement, guide members positioned on said body above and `below the brush members for centering and guiding said body and brush members as the device is reclprocated, and means secured to the body whereby the tool may be reciprocated within a casing, tubing, liner, or the like.

4. In a well device of the character disclosed, 'a mandrel. a sleeve surrounding said mandrel, said sleeve and mandrel formed with diametrical openings adapted to be in registry when the mandrel and sleeve are in one position, said diametrical openings being arranged longitudinally of the sleeve and mandrel, and said openings adapted to receive brush members; certain of said openings in the sleeve being of greater diameter than the corresponding openings in the mandrel, whereby all of said brush members are held under substantially the sameV gripping pressure when the sleeve -is moved in one direction relative to the mandrel to bring the openings of said sleeve and mandrel out ofA registry.

5. A device `for cleaning a well tubing, casing liner, and the like, including a mandrel and a sleeve slidable on said mandrel, said mandrel and said sleeve being provided withopenings, a. re. movable pin cooperable with registrable apertures in said sleeve and mandrel for holding said sleeve inposition on said mandrel with said openof said mandrel being threaded and extending below the lower end oi said sleeve,vand,a nut on said threaded lower end of said mandrel lor en. gaging-thelower end' oi vsaid sleeve for drawing said mandrel downwardly in clamped relationship with respect to said sleeve, when said alignment means is released, for gripping said bristles in said openings between said sleeve and said' mandrel nomi' ROY mcoaaooa

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