US1347806A - Well cable-pump - Google Patents

Description

I. N'. FENDER. WELL CABLE PUMPi APPLICATION man on. 24. 1919.

Patented July 27, 1920.

Snvmtoz madam Gama Witnuo UNITED STATES PAT N OFFICE.

JOE 1v. FENDERLOF DALLAS, TEXAS.

WELL CABLE-PUMP.

To all whom it may concern Be it known that 1, Jon N. FENDER, a citizen of the United States, residing at Dallas, in the county of Dallas and State of Texas, have invented a new and useful llvell Cable-Pump, of which the following 1s a specification.

This-invention relates to an improved pump and more particularly toone adapted to be used in connection with deep wells for pumping oil or other fluids and the; ob ect thereof is to provide an improved construction whereby it will obviate the necessity of employing a long line of extra pipe and the usual pump rod which gives so much trouble.

A further object of the invention is to provide an improved pump employing a cable in lieu of the ordinary pump rod, and which includes a novel construction of pump device facilitating the pumping operation, and also the removal of the parts for cleaning or repair or any other cause.

ll'ith the above and other objects in view which will appear as the description pro ceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that within the scope of what is claimed, changes 1n the precise embodiment of the inventlon shown, can be made without departing from the spirit of the invention.

In the accompanying drawings Figure 1 is a vertical sectional view of the upper portion of the pump;

Fig. 1 is a similar view of the lower portion of the pump;

Fig. 2 is a sectional view taken on the line 2-2 of Fig. 1 7

Referring to the drawings in which like reference characters designate similar parts throughout the several views, the numeral 10 designates a well casing'which is driven into the ground at a suitable depth so as to strike a subterranean stream or supply of fluid, such as oil, water or the like. The casing is shown extended to the cap rock 11,

'of the stream 12, from which the fluid supply is drawn. hlountedin the bott0m of theicasing is a perforated strainer or suctlon pipe 13 which is connected at itsupper end tothe lower end'of the cylinder or working barrel 141 by a pipe coupling 15, preferably internally threaded to engage the corresponding external threads of the ad acent ends of the pump cylinder and suction pipe;

Specification of Letters Patent;

Thepuinp cylinder or working barrel-ex tends upwardly at a'suitable distance, and has the upper end thereof provided with a reduced perforated swage nipple-16,. the perforations below said nipple or swaged portion being indicated at 17 in the tapering Patented July 27, 1920.

Application filed October 24, 1'919.' Serial-N0. 332,994. I

or. conical upper end of the pump cylinder or working barrel, so as to receive the short section or pump rod 18 therethrough. Said pump rod is made in a. series of sections the lowerend of-which is connected by a coupling 19 with, a suitable valved pump plunger 20 having the usual passage 21 therethrough, and the cage 23 mounted on the upper end thereof to retain the ball.

valve 24. in position, saidv ball being designed to open on the downward stroke of the plunger and to, close on the upward stroke of the plunger so as to lift the fluid within the pump: cylinder or workingbarrel.

The connection of the pump rod is made with a reduced extension 25 extending from the upper end of the cage, the coupling preferably being internally threaded for engagement with the corresponding external threads of the pump rod and the extension 25 as clearly. shown in Fig. 1 of the drawing. r

Mounted in the lower end of the pump cylinder or Working barrel above the perfo rated suction pipe 13, isa valve member, 26 v the same having a cage 27 on the upper end thereof which retains a ball valve 24, ex-. cept that the ball: valve 28 is-open 'on the upward stroke of the: plunger 20 and closed on the downward stroke thereof in opposite relation to the operation of the ballvvalve 24, thus providing one of the valves to supportor maintain the column of liquid within the pumpcylinder or working barrel and the casing, atall' times.

Above the coupling 19,. is disposed a similar coupling 29 which is limited in its upward movement by the nipple 16 and which also permits separation of the parts for the pu-rposeof cleaning or repair and also facilitates assemblage thereof. The pump cylinder or working barrel carries externally below the nipple 16, a supporting collar or seat 30 having an enlarged upper end portion providedwith a suitable leather packing collar or washer 31 seated therein, and forming a water or fluid tight connection with the lower end of a pipe section 32 which. fits over the working barrel at the upper end thereof and is provided at its upper end, with a swaged nipple 33 beneath which said pipe is tapered and provided with suitable apertures 3 L for the escape of the fluid therethrough. There is provided between the,

nipple 16 and the nipple 33, a coupling 35 similar to thecouplinsrs-lQ and329, the coupling 35 being limited in its upward movement by the nipple 33,"although the short sectional pump rod or shaft'18, com-,

prising three sections as shown, extends through the nipple 33 and considerably abovethe same for connection with a cable 36 which'is employed in lieu of the usual pump rod, thereby permitting the cable to be wound upon a suitable drum for raising the parts, while permitting reciprocation of the plunger in theusual or any preferred manner. The connection of the pump rod with the cable is made through the medium 'of-a coupling 37 andsuitable clamps 38 anchoring the extremityof the cable above the coupling, which latter is'preferabl'y provided with a threadedsocket in its lower end to whichthe upper endvof the pump rod is connected as shown at 39,'said ends being externally threaded for this purpose.

' The lower end of this pipe or outer work'- ing barrel or pump cylinder'32 rests upon the collar in engagement with the packing washer 31, immediately above which the pipe 32 is'provided with a series of apertures 40.7 Aboveand below the apertures or openings 40 in the wall of the pipe 32, there 7 are disposed collars or'lock nuts 41 between which are'clamped an annular leather or V rubberpacking sleeve 4i2 which fits against 1 the interior wall of the well casing.

V In theloperation of the device, it should b'e'noted that there is slight space between pump cylinder or working barrel 14 and the outer pump cylinder or working barrel mountecb'above and over the same and formed 'by the pipes 32, so that as the plunger is reciproeated, the fluid such as oil, when the device isfused in connection with an oil well, will be caused to pass successively'by'the valves '28 and 24 and above the plunger, being prevented from passing downwardly by said valves when in closed positions, but beingeifectivelystrained in' passing through the perforated suction pipe 13. This prevents entrance of foreignmatter to the pump and as the fluid 'islifted, it

will pass out through'the openingsl'? from the pump cylinder or working barrelinto' the outer or upper pump cylinder or working barrel 32 or pipe formingithesame, and then 'passthrough the openlngs 34to be lifted in the wellcasing to be discharged. However,"acertain amount of fluid after passing through the openings 17 will pass between said cylinders 14 and 32, and enter the space between the same through theopenings '40 behind the packing sleeve 42 and being forced outwardly under the pressure, caused by the fluid or oil, will seal it against the casing and make a perfect fluid tight oint which will prevent the fluid from charged from the top of the casing and should it be desired to pull the pump for any cause, itwill'be simply necessary to wind on the cable which will cause the coupling 35 to strikeythe nipple or sleeve 33,

thuslifting the pipe or outer pump cylinder 32 from its seat upon the'washer 3l-of the collar30, thus relieving the'pressure and a1- lowing the fluid to be discharged downwardly into the casing around the collar 30 and further permitting the coupling 29 to engage the "nipple or sleeve 16 and to raise the working valve and parts associated therewitli,:as soon as the head of oil above the "valve is relieved} the plunger moving upwardly with the rodrduring this opera- 'tion,and thereby permitting the pump to be drawn out.

Having thus fully described "my invention, what claim is: V

1. A pump rod comprising a casing, a working barrel in said casing and providing an annular space between the same, 'a

strainer coupled to the lower end of the barrel, a ball va'lve in the lower portion of the passing therebetween. As the pump is 0011 .tinued to be operated the fluid will be dis upper barrelbe'ing provided with a reduced upper end and apertures therebeneath, said reduced portions of the barrels being designed for engagement by couplings connectingsections of the rod whereby to successively lift the'upper and lower barrel, and apacking-in the upper barrel-and the casing adjacent said seat, saidfupper barrel being provided with openings at said'packing.

' 2. The combinationwith a working barrel having a'valved'lower end and a nipple at its upperend' with apertures therebe neath; of a valve and plunger operating in said barreha rod connected to said plunger, operating means connected to said rod, a

collar connecting; sections'of" the barrel and having a seat on its upper end, there being a space between saidicollar and the usual'well casing, a pipe around said barrel and resting on said seatat its lower end, said'pipe having anipple at its upper endand apertures therebeneath, enlargements on the rod beneath said nipples, the nipple of the barrel being at a greater distance from the enlargements beneath it than the nipple of the pipe is above the enlargement beneath it, said pipe having openings in said lower end communicating with a space between pipe and valve, and a sleeve forming a packing anchored to the pipe above and below the apertures therethrough to seal against'the casing.

3. In a pump,'the combination with a sectional barrel including an inner section, a plunger operating therein, meansfor' actuating said plunger, an upperbarrel section, said upper section being located outwardly of the lower valve section and provided with a space between the upper portion of the lower section and thelower. portion of the upper section, means to permit the escape of fluid at the upper ends of said barrel sections, said upper section having apertures through its wall near the lower end thereof, a collar connecting to said lower section and having a seat on its upper end for the lower end of the upper section, a flexible packing surrounding said upper section and spaced therefrom providing an annular chamber around said apertures, the upper and lower ends of the packing sleeve being provided with inturned flanges and means for anchoring said flanges to said vupper section to prevent the escape of fluid therebetween.

In a pump, the combination'with a sectional barrel including an inner section, a plunger operating therein, means for actuating said plunger, an upper barrel section, said upper section being located outwardly of the lower barrel section provided with a rounding said upper section and spaced therefrom providing an annular chamber around said apertures, the upper and lower ends of the packing sleeve being provided with inturned flanges, means for anchoring said flanges to said upper section to prevent the escape of fluid therebetween, said barrel sections being provided with perforated swaged nipples at their upper ends and tapered portions immediately therebcneath having apertures therethrough, said barrels being adapted to be disposed in spaced relation to the well casing and said packing being designed to contact with the interior of said casing, and means on said rods for successively displacing the upper and lower sections of the barrel when lifting the rods out of the casing, whereby to unseat said upper section from said collar and relieve the fluid pressure thereabove, whereby said plunger and valve can be removed.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two.witnesses.'

' JOE N. FENDER. Witnesses:

J. H. NAPIER, C D. PILLEY.

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