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Publication numberUS1317192 A
Publication typeGrant
Publication dateSep 30, 1919
Filing dateFeb 27, 1919
Publication numberUS 1317192 A, US 1317192A, US-A-1317192, US1317192 A, US1317192A
InventorsS. Jones
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1317192 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)



1,317,192, Pmentedsept. 30,1919.I





Specification of Letters Patent.

Patented Sept. 30, 1919.

Application led February 27, 1919` Serial No. 279,489.

To all whom t may concern.'

Be it known that I, ARTHUR S. JONES, a citizen of the United States, residing Iat Independence, Ain the county of Jackson and State of lMissouri, have invented certain new and useful Improvements .in Well- Cleaning Devices; and I do declare the following to be a full, clear, and exact dcscri'ption of the invention,` such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had tothe accompanying drawings, and to the letters and figures of lreference marked thereon, which form apart of this specification.

This invention relates to a well cleaning device and particularly to a mechanism for cleaning out and enlarging the lower uncased part of 'a well so that a freerflow to the casing may be provided. One of the objects of the invention is 4to provide a cleaner or reamer for oilV wells which is adapted to be lowered linto the well into working position and revolved so as to enlarge the cavity thereof. `Another object is to provide an expansible reamer with means for holding it in position and means for adjusting the expansible head members "as well as to provide a construction in which water may be fed to the well while the cleaning is taking place. Another object of the invention is to provide a reamer and an operating shaft therefor which may be,conveniently introduced into the well and readily removed therefrom, as the occasion may demand.

Other objects and advantages of this in- `vention will be referred to hereinafter, it being understood that changes in form, pro portion and minor details of construction may be resorted to without departing lfrom the spirit of the invention or sacrificing any of its advantages.

In the drawings,A

Figure I is a vertical longitudinal sectional View through a well casing into which my invention has been introduced, the reamer being shown in an expanded position.

y Fig.' II is a View, partly in elevation and partly in section, of a reamer collapsed.

Fig. III is a fragmentary/detail perspcc* tive view of the lower reamer head, showing one of the toggle lever arms and a fragment of one of thecutter rods.

Fig. IV is a cross sectional view'of the reamer showin'r the expanding rod and the r cutters 1n grouped relation.

Fig. Y is a detail perspective View of one of the cutters, and

Fig. VI is a sectional view through the reamer supporting tube, the tube rotating lever being shown in plan.

Referring now to the drawings by numerals of reference:

l designates a well casing which may be of any preferred construction but which is here shown as comprising a plurality of tubes or pipes and below the lowermost tube is the well cavity 2 to be cleaned. Resting upon the ground and adjacent to the well casing is a staging or platform 3 on which is a gear step 4 provided with a bearing plate a supporting a beveled gear G clampedon the bearing plate collar 7, which is secured to the staging or platform 3 by bolts 8. The gear is adap'ted to be driven from a pinion 9 on the shaft 10 in bearings 11 and 12, said shaft 10,being rotated by the pulley 13 which may be driven from any suitable source. The gear 6 has an outwardly projectiug arm 14 fast thereon, which is provided with an upstanding projection .1 5 adapted to contact with a tube rotating lever l(.removably clamped to a tube 17 which .may be o'f any appropriate length and which may be suspended from a yoke 18 supported by an appropriate hanger 1S). The tube is rotatable upon the yoke plate 20 by a flange cap 21l which rests upon the anti-friction bearings 22 supported'by plate 20 and said tube 17 is vertically slidable through an opening in the gear G, as will be clearly apparent by referenceto Fig. I. It will, therefore, be seen that the tube rotating arm 16 may be clamped to any point with respect to the tube 17 so as to be in position to be contacted by the projection 15 as the gear 6 rotates. The tube 17 extends into the casing 1 and preferably terminates at a point adjacent to the bottom edge thereof, tor which point it carries a head 23 which supports a plurality of pivoted cutter-carry ing rods or arms 24, there being four shown in the illustration, spaced equi-distantly apart at angles of about 900 and these rods 24 carry alternate cutters and washers 25 vand 2G, the lower ends of the rods being ,expanding rod 3l by means` of the pin 32 which fits'in the groove 33. as will be clearly seen by reference to Fig. Il, and on the lower end of the expanding rod 31 are nuts 34 which reain the downward movement of the head 80 with respect to said' rod 3l. The toggle levers 27 are provided with outsets or cam 'faces 35, against which the cone-- shaped expanding collar 36 on rod 31 may contact to effect an initial vopening movement of the toggle levers 27. rl`he vertical movelment of the expanding rod 31 may be effeoted by rotating the nut 37 on the threaded portion 38 of the rod 31, said nut bearing against the cap 21. The rotation of the nut may be eected by a suitable wrench, or Vany other suitable turning collar or nut may be.

substituted for the one illustrated.

WVhen it is desired to clean or ream a well i cavity, the devicel will be inserted through the casing 1 in a collapsed condition, -as shown in Fig. Il, suitablesections of tubing 17 and rod B1 being added to provide the desired length, the whole being lowered through the gear 6. The arm 16 will` then be clamped on the tube 17 so as to beengaged by the projection 15 as it rotates horizontally about the aXis of the gear 6.

l The power will then be applied to the pulley i the gear 6 will be rotated,

vstood that the reamer 13 and through the shaft 10 and pinion 9,

it being undern has been previously expanded through the medium of the rod 31. As the tube 17 is rotated, carrying with it the reamer cutters on rods 24, the cavity will be enlarged in an obvious manner, it being apparent that the expansion may be gradually increased by rotating the nut 37.

Ifdesired, a suitable lubricating medium may be introduced'into the casing 1 duringthe cleaning or reaming operation.

with the Abottom The expanding cone 36 will impart an 4initial opening movement to the toggle levers 27 by' sliding against the cam faces 35 and as-soon as the pivot vpoints 39 are `moved out of vertical alinement with the pivot points 40 andthe pivot points 41, an upward pressure of the head 29 through v the medium of rod 31 will complete the eX- pansion of the reamer, as shown in Fig. I.

Therefore, it will be apparent that a ,com- Aparatively large cavity may be reamed or cleaned out below the well casing.

'In order to prevent the head 29 from `being raised too'high, l have provided a stop collar -l2 on rod 31 which may contact of head Q3; therefore, liability of accident due to'inverted inclina- 'tion 'of the toggle levers 27 will be avoided.

Having thus described invention, what toggle l claim as new therein, and desire to secure by Letters-Patent is:

.1. A Well cleaning device coniprisinga tubular shaft adapted to be inserted into a well casing, a head carried by the tubular shaft, cutter-carrying arms pivoted to the head and radially movable with respect thereto, toggle leversI connected to the cutter-carrying arms and having cam projections on their inner edges, ahead connect-I kan expanding rod ing the toggle levers,

mentioned head and connected to the second passing through the'iirst, Vand a cone carried by the head for contact with the cam faces of the toggle levers to initially move them outwardly .away from the rod.'

' 24. A well cleaning devicecomprising a.

tubular shaft adapted to be inserted into a well casing, a head carried by the tubular shaft, cutter-carrying arms pivoted tothe head and radially movable with respect thereto, toggle levers connected to the cuttercarrying arms :and having cam projections on their inner edges, a 'head connecting the toggle levers, an expanding rod connected to the second mentioned head 'and passing through the first, a cone carried by the head for contact with the cam faces of the toggle 'levers to' initially L move them outwardly' away from the nod, and a stop on the rod for limiting themoveinent thereoffin one direction.

3. A well cleaning device comprising-atubular shaft adaptedto' be inserted into a well casing, a head on the end of the shaft, l

pivoted arms carried by said "headcutteri carried by the' tubular shaft, a second head carried by the rod, a stop member on the rod f or limlting its vertical movement in one direction, toggle levers connected to the ifoo:

head on the tubular shaft and to the head on the rod, and `means the rod for expanding the togglelevers.

vIn testimony whereofl affix .my signature; t, ARTHUR'S. JONES;

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2450223 *Nov 25, 1944Sep 28, 1948Barbour William RWell reaming apparatus
US2548724 *Sep 5, 1947Apr 10, 1951L Ray SamerOil well reamer
US2688465 *Aug 3, 1951Sep 7, 1954Birdwell Robert MCutting head for earth augers
US2690325 *Sep 2, 1948Sep 28, 1954Dismukes Newton BMachine for increasing the subterranean flow of fluid into and from wells
US2697586 *Nov 26, 1949Dec 21, 1954Talley Dolen OEarth underreamer
US4071098 *Oct 28, 1976Jan 31, 1978Ingersoll-Rand CompanyCutter mounting extension apparatus
US4365677 *Mar 23, 1981Dec 28, 1982The Robbins CompanyEarth boring apparatus
US6575255 *Aug 13, 2001Jun 10, 2003Cdx Gas, LlcPantograph underreamer
US6591922Aug 13, 2001Jul 15, 2003Cdx Gas, LlcPantograph underreamer and method for forming a well bore cavity
US6595301Aug 17, 2001Jul 22, 2003Cdx Gas, LlcSingle-blade underreamer
US6595302Aug 17, 2001Jul 22, 2003Cdx Gas, LlcMulti-blade underreamer
US6644422 *Aug 13, 2001Nov 11, 2003Cdx Gas, L.L.C.Pantograph underreamer
US6722452Feb 19, 2002Apr 20, 2004Cdx Gas, LlcPantograph underreamer
US6851479Jul 17, 2002Feb 8, 2005Cdx Gas, LlcCavity positioning tool and method
US6962216May 31, 2002Nov 8, 2005Cdx Gas, LlcWedge activated underreamer
US6976547Jul 16, 2002Dec 20, 2005Cdx Gas, LlcActuator underreamer
US7007758Feb 7, 2005Mar 7, 2006Cdx Gas, LlcCavity positioning tool and method
US7182157Dec 21, 2004Feb 27, 2007Cdx Gas, LlcEnlarging well bores having tubing therein
US7213644Oct 14, 2003May 8, 2007Cdx Gas, LlcCavity positioning tool and method
US7434620Mar 27, 2007Oct 14, 2008Cdx Gas, LlcCavity positioning tool and method
US20050139358 *Feb 7, 2005Jun 30, 2005Zupanick Joseph A.Cavity positioning tool and method
US20060131076 *Dec 21, 2004Jun 22, 2006Zupanick Joseph AEnlarging well bores having tubing therein
U.S. Classification175/202, 175/342, 175/285, 175/384
Cooperative ClassificationE21B7/003