US1891615A - Operating rod guide - Google Patents

Description

Dec. 20, 1932. R. R. BOSTIC OPERATING ROD GU IDE Filed June 21. 1929 INVENTOR. R R. B08 T/ C A TTORNE Y.

Iatented Dec. 20, 1932 QYU-NI'T'E ATEJS RALPH R. BOSTIC, or LONG BEACH, camronnm PATENT oFF1cEq OPERATING ROD GUIDE Application filed June 21,

This invention relates toimprovementsin snap-on" guides for oil well drill pipes and sucker rods; V g I The general object of the invention is to provide a guide of the class described which can be economically manufactured V and quickly installedqr Another object of the invention is to provide a spirally wound flexible guide'ha'ving resilient means for 'engaging the article on which it is mounted.

A specific object of the invention is to'provide a flexible member for snapping on a drill pipe or sucker rod to act asa guide therefor.

' A more specific object of the invention is to provide a device ofthe class descr bed which is made of rubber or a similar suitable composition having a metal core therein.

Other objects and the advantages of this invention will be apparent from the following description'taken in connection with the accompanying drawing whereinr Fig. 1 is a central sectional view showing a portion of a well with 'a sucker rod therein equipped with myinvention.

Fig. 2 is a view similar to Fig.1 on alarger scale. i I V Fig. 3 is an enlarged cross section through the guide shown in Fig. 2. I

Fi 1 is a view of a portionof drill pipe showlng a modified form of guide thereon.

Fig. 5 is an enlarged cross section through the guide shown-in Fig. 4, and

Fig. 6 is a view of the metal core used in the guide shown in Fig. 4.

Referring to the drawing by reference characters I have indicated my improved guide generally at 10. In Fig. 1 I have shown it as mounted on a sucker rod 12 which is positioned to operate in a pump tubing 13 positioned in a well casing 14. Instead of being mounted on a sucker rod it can be mounted on a drill pipe, as will be readily understood.

As shown the guide 10 comprises a body portion 15 which is preferably made of flexible material such as compressed fibre or rubber and a flexible core 16 imbedded in the body portion and which is made of metal.

portion and which is made of 1929. Serial No. 372,728.

but does effectively support the sucker I'Odi and when mounted on a drill pipe it does not interfere with the flow of the circulating fluid but doesefiectively guide the drill pipe and prevents it from striking the well cas- 'When a pluralityof devices 10 are used on a sucker rod they may be so positioned that asthe sucker rod moves up and down inits'pumping operation the guides 10 effectively prevent the accumulation of par'affin or other solids on the inner wall of the pump casing.

In Fig. 4 I have indicated generally at 20 a slightly modified form of guide and have shown it as operatively mounted on a portion of drill pipe 21. As shown the guide 20 comprises a body portion 22 which is made of rubber or some other similar composition and a metal core 23 imbedded in the body a spring metal bar. k r

, The guide 20 like the guide 10 is flexible and is constructed tonormally take the position of a spiral. The inner surface of the body portion 22 is shown as provided with a plurality of depressions 24 which are shaped to form suction cups to retain the guide in engagement with the object on which it is mounted and the, outer surface of thebody may be provided with aplurality of recesses 26 which are filled with graphite 27 or some similar material which acts as a lubricant between the guide and the casing within which it is operating.

The metal core 23 is provided with a plurality of apertures 28 through which the material from which the body portion is made flows at the time of moldingand which prevents the core from shifting within the body Portion.

shape, a core n sald body, said core being The core 23 when made is preferably of a size wherein the diameter of the central longitudinal aperture therein is of a size which corresponds approximately to the diameter of the article on which the device 20 is intended to be used. That is, if the device is intended for use on a four inch drill pipe the diameter ofthe-"core 23 when made would be four inches and the diameter of the longitudinal aperture of the body portion would be one half the thickness of the body thus necessitating springing the device to position it on the object with which it is intended to be used.

Adjacent each end of the guide 201 provide an aperture 29 which continues through the core .23 and forms holes in which tools may be positioned to help positionthe guideon or remove it from the object on which it operates. I f

, Itvis well known thatrnbber is particularly adaptedfor water lubrication, and as water is alwaysjpresent in deep well drilling therefore by reason of their wet and slippery surfaces and the yielding nature of the rub her body portions 15 and 22 of the devices 10 and 20 theyido not retain abrasive grit upon their-surfaces. Therefore when the devices 10 and 20 contact' with the object in which they are positioned they do not damage it but merely slipover the surface thereof. From the foregoing description'it will be apparent that I have provided an improved guide for use on sucker rods or drill pipes which is simple in construction, easy to apply to the article onwhich it is to be used, and very eflicient in use;

Having thus described my invention, I claim: w

. 1. In a device of the class described, a body portion, said body portion being made of a resilient material and formed in spiral shape, a core in said body, said core being made of a spring metal'and shaped to conform to said body, there being a plurality of recesses in the outer face of said body portion and a filling of lubricant in said recesses.

i 2. In a device of the class described, a body portion, said bodyportion being made of a resilient material and formed in spiral shape,

a core in said body, said corebeing made of "in the inner faceof said body portion, said depressions being formed to provide suction C ps.-

In "a device of the classdescribed, a body portion, said body portion being made ofa resilientmaterial and formed in spiral made ofa spring metal and shaped to conform to said body, a plurality of apertures in saidcore, said apertures being adapted to receive portions of said body portionto retain said core and said body portion in correct relationship.

4. In a device of the class described, a body portion, said body portion being made of a resilient material and formed in spiral shape, a core in said body, said core being made of a spring metal and shaped to conform to said body, there being a plurality of recesses in the outer face of said body portion with lubricant in said recesses, there also being a plurality of depressions in the inner face of said body portion, said depressions being formed to provide suction cups.

5. In a device of the class described, a body portion, said body portion being resilient and formed in spiral shape and having a central aperture extending longitudinally of the device, a core in said body, said core being made of metal shaped to conform to said body, the normal inside diameter of the longitudinal aperture of said core being constructed to approximately correspond to the inside diameter of saidlongitudinal apertureof said body portion when saidbody portion is in service position. I V

6. In a device of the class described, a body portion, said body portion being made of a resilient material and formed in spiral shape, a core in said body, said core being made of a spring metal and shaped to conform to said body, said core having a plurality of apertures therein, said apertures being adapted to receive portions of said body portion to retain said core and said body portion in correct relationship, there being a plurality of recesses in the outer face of said body portion with lubricant in said recesses, there also being a plurality of depressions in the inner face of said body portion, said. depressions being formed to provide suction cups.

7. In a device of the class described, a body portion, said body'portion being made of a resilient material and formed in spiral shape, a core in said body, said core being made of a spring metal and shaped to conform to said body.

In testimonywhereof, I hereunto afiix my signature. v

RALPH R. BOSTIC.

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