US1569731A - Pump - Google Patents

Description

Jan. 12 ,1925;

` C. R. EDWARDS PUMP Filed sept. 18, 1920 Patented dan. Y12, 1926.

CHARLES n. nnwaans or notieren, Texas.'

FUD/IP.

Appiicationjaia september ie, i920; 'seran Naai-1,307.

To all whom t may concern;

lBe it known that I, CHARLES R. EDWARDS., a citizen of Vthe United States, residing at Houston, in 'the county of Harris and `State of Texas, have invented certain *new and useful Improvements in a Piu-mp, of which the'following is a specification.

Thisy invention .relates to new and useful improvements in a pump.

One object of the invention is to provide a pump of 'the character `"described 'whi'ch has been specially designed for pumpingjoil or' other fluids from wells. 'In pumping oil,:` or other fluid, containing sand, iff the pump is stopped or if the flow oit luid is,

for anyieason, retarded, .the sand has al tendency to settle .around lthe valves rand other working parts and 4seriously interfere with their operation `and to sometimes so clog the pump asto interfere` with or entirely stop its operation. Furthermore, the 'sand causes the working parts to wear away very rapidly, thus causing the pump to leak and become ineliicient. YTt is the object of this invention to provide .a pump which is so constructed that there will. alwaysbe a free circulation of fluid therethrough, which is jetted against and past .the valves and which sweeps away all sand ,and other detritus tending to settle in the pump.V This circulating fluid is `kept in motion through the pump during its operation irrespective of whether there is a continuous current of.

fluid being produced from the wellbr not.

Another object of theinvention is `to provide a pump so constructedthat the Huid `being pumped will pass up through the tubular sucker rod and will'beentirely eX- Acluded from the Ycups of the traveling valve, thus protecting 'said cups against 'collection of sand or other detritus betweenrthem andV rel around the sucker rodwhich -is'forced by the action of the pump through the stand-k ing` valve "and up vthrough the traveling valve. A sufficient quantity 'of this diluting i fluid is introduced into the pump to partially balance the column of'liuid in the sucker'rod and this will 4have the leffect of dividing thework on the cups of the traveling valve between up stroke and down A j 'istanti 7 stroke, thus increasing` the life of thev cups. f i

With the above and other objects in View the inventionhas particular relation toy certain novel features of construction, operation and arrangement of parts, an example of which is given in this specification and illustrated in the accompanying drawings,

, wherein The ligure shows a verticalsectional view of the pump.` f

Referring now more particularly `to theV drawing, the numeral l designates kthe working barrel lwhich Yis 'tubulariii foi-in and whose lower end is contracted;` fiithin said lower end therev is a tubular nipple' which is surrounded by thepackingr and whose lower end i-s internally threaded to receive the ordinary gas anchor, common to pumpsof this` character. The uppere'ndof the nipple 2 supports the annular valve seat .el which is clamped in placeby the cage .5 which is screwed onto the upper end of the nipple and which coni'inesther'ball 'valve-6 which controls said seat, said seat cage 'and 'ball valve constituting the standing'valve. An upstandingjacket 7 is secured to and. ysurrounds said cage, and stands some disj tance above it and this jacket is spaced from the working barrel. -ably -four), of -ducts 8 lead 'fromthe space 'around said j1ac-ket,through the jacket'and cage 5, and incline upwardly toward said A. plurality, (preferv'alve' underneath' it. .A traveling valve `works in the barrel above 'the standing valve., Thisvalveincludes'atubularnipple f 9 whose upper endis formed with van enlarged head l0 seated inwhich is the *an nular seat l1, which is held in place by the cage 12, screwed into said head. A'hollo'w catedv up Vand dow-n. A hollow sleeve A; surrounds and is spaced from` the nipplef). The upper' end of kthis sleeve is threaded sucker rod 13 is attached tofth'is cage and- ,through itl the vtraveling valve is recipro .ica

vis threaded onto the nipple 19.

`onto the head and its lower end is anchored by means of the clamp nut which The sleeve 141 has the usual cup rings 16 secured thereon which fit between it and the working barrel and prevent the passage of fluid between said barrel and the traveling valve. The upper end of the sleeve 1a is spaced from the working barrel and has the constricted inlet ports 17, 17 into the space between said sleeve and the nipple 9, and leading from said space there are the constricted ducts i8 through the nut l5. A ring-like valve 19 is normally held against the underside of the nut 15 by means of a coil spring 2() upon which the valve is seated, and thus normally closes said ducts 18. The lower end of the nipple 9 has a nut Q1 threaded thereon, whereon the spring 20 is seated, and a cup-like plunger 22 is threaded onto and depends from said nut 21 and fits loosely within the jacket 7. This plunger is internally threaded so that it may be screwed onto the externally threaded upper end of the cage 5 and when so screwed onto said cage both the standing and traveling valves may be withdrawn from the working barrel by an upward pull upon the sucker rod 13.

Upon up stroke of the traveling valve, fluid is drawn up through the standing valve and upon down stroke of the traveling` valve, the fluid will pass above it and upon successive strokes this process will be repeated, forcing the fluid up through the hollow sucker rod to the ground surface. This fluid is laden with sand which has a tendency to settle around the valves, particularly when there is not much fluid being pumped and the current up through the pump is weak. To obviate this, I constantly supply clean oil into the working barrel around theV sucker rodso as to maintain a suitable head of clean oil above the traveling valve during the down or discharge stroke of said valve. This relieves the cups or other packing between the traveling valve and the working barrel of excessive one way pressure and greatly lessens the wear of said cups or other packing as it greatly lessens the difference of the static pressure of the sandy oil below the traveling valve and the clean oil above the traveling valve outside of the hollow sucker rod and therefore prevents the forcing of the sandy oil into the working joint between the traveling valve and working barrel. This is also much aided by the peculiar construction of, and the passage of clean oil downwardly to, the standing valve. Upon up stroke a limited supply of the clean oil passes through the constricted ports 17 into the space between the nipple 9 and sleeve 14 and thence through the constricted ducts 1S past the valve 19 and info the chamber beneath the traveling valve.

`Upon down stroke, the valve 19 closes and the clean oil is then driven under pressurepartly through between the plunger and jacket, thus cleansing the jacket, and partly through ducts 8 and is projected against the valve 6 and it all returns with a strong current up through the standing and traveling valves and on up through the sucker rod andsweeps out all sand and settlings and carries the sameup out of the pump,

lt is to be observed that inasmuch as the fluid being pumped passes up through the hollow sucker rod 13 there can be no settling of sand around the traveling valve to wear away the cups thereof. i

Vhat .I claim is 1. A pump including a working barrel, a standing valve therein, a traveling valve reciprocable therein and having a fluid passageway therethrough for Aascending fluid and, controlled by an upwardly opening valve, said traveling valve having also a fluid passageway therethrough for descending fluid and controlled by a downwardly opening valve, said last named passagi-iwayV being provided to conduct a cleansing fluid from within the barrel above the traveling valve and discharge the same into the working barrel beneath said traveling valve and means separating the ascending and descending fluids.`

2. A pump including a working barrel, a standing valve in the lower end thereof, a traveling valve reciprocable above the standing valve, a tubular ysucker rod to which the traveling valveV is attached and through which the fluid being pumped is delivered, and valve controlled conduits in said travelingvalve through which a diluting fluid may be discharged from said working barrel up through said valves and sucker rod to be mingled with the fluid being pump ed 8. A pump including a working barrel,

a standing valve fixed to the lower end` thereof, and provided with a duct,`a traveling valve reeprocable above the standing valve, a hollow sucker rod attached to said traveling valve and adapted to reciprocate the latter, a `valve-controlled fluid passageway through said traveling valve through which fluid is introduced into the working barrel, beneath the `traveling valve, upon up stroke of the latter, said fluid being driven by said traveling valve, upon down Vstroke through said ducts and against the standing valve j j 4. A, pump including `a working barrel, a standing valvefixed in the lower end thereof, a tubular jacket fixed to and upstanding from said valve, a traveling valve in said barrel above the standing valve, a tubular sucker rod through which said traveling valve be reciprocated, a plunger carried by' thetraveling valve and provided' with to yreciprocate back andforth` vin 'said acket vas the pump is operated, said traveling valve having a valve-controlled' passageway therethrough provided to admity fluid into saidr barrel beneath the traveling valve.

upon up stroke of the latter, said fluid being forced, upon down stroke thereof, in

.through between said plunger and jacket Q a downwardly-"opening valve y'controlling said ports, vsaid last ymentioned passageway being provided to permit the passage of a cleansing fluidfroin within the barrel above the traveling barrel, and to discharge the sainebeneathy said traveling valver to surround the fluidbeing pumped with said cleansing fluid. 1

G. In a pump, a workingbarrel, a standing valve therein, a traveling valve in said barrel above the standing valve,said traveling valve-being provided with a fluid passageway through which .the fluid being pumped may pass upwardly, an upwardly opening valve controlling said passageway, said traveling valve also being provided with a fluid passageway for descending fluid, leading from the barrel above the traveling valve and communicating kwith the interior of the barrel beneath the traveling valve, ay downwardly opening valve controlling said last named passageway, and means to prevent the interiningling of the oppositely moving fluids. p

7. In a pump, a working barrel, a standing valve therein, a traveling valve in said barrel, a tubular sucker rod, to the lower end of which the traveling valve is attached, said traveling valve being provided with a valve controlled fluid passageway through which fluid being pumped is delivered into the sucker rod, and having another valve controlled fluid passageway through which fluid is delivered ,from above said traveling valve through the barrel beneath the traveling valve, said last named passageway being formed at its lower end to deliver said fluid in an annular sheet all the way around the traveling valve.

8. ln a pump, a traveling valve provided therethrough, through one of which ak fluid is forcediipwardly, upon `down str-oke of the valve,=and through-the other of'which i m l fluid passes downwardly uponrup stroke of said valve, a barrel in whichsaidtravelvalve vcontrolled fluid passageways ing valve operates,a standing valve in thebarrelbeneath said traveling valve having a valve'controlledfluid passageway through Y which the fluid beingl pumped `may pass upwardly and also having fluid pas-sageways through which the fluid delivered downwardly through the traveling valive is discharged into the" first named of' the stan'dingvvalvei i 9.1The combination ina pump vof'a working-barrel, a standing valve therein, through passageway which the fluid beneath it is permitted to:

pass upwardly, said valve Vbeing providedV with radiating ducts, a traveling. valve. inthe vbarrel abovefthe standing valvev Vand providedfwith valve-controlled fluid passagekways through one of which fluid passes downwardly-upon up stroke ,ofthe vvalve and through the other of which fluid passes. upwardly upon down vstroke thereof, said traveling valver operating4 upon..l Y down stroke to force the fluid between said valves, through said ductsv and up through thel standing andtraveling valves. Y. V` 10A pump, including a working .barrel, a standingvalve-fixed to the lower end thereof and provided with a duct, a traveling valve reciprocableabove ythe standing valve, a hollow sucker rod attached to said j traveling valve Yand'y adapted to reciprocate the latter, `said traveling valve being provided with y a valve controlled fluid .passageway through which fluid is introduoedinto the. working .barrell beneath the traveling valve upon iipstroke ofl the latter,'said fluid' so admitted being driven by the traveling valve through said duct against the standing valve.

1l. A .pump including a working barrel, a standing valve and a traveling valve associated therewith, said valves having conlill) trolled fluid passageways through which i fluid may pass upwardly through them,and

being also provided with other controlled Y passagewaysk through which fluidr may be forced downwardly therethrough.

l2. A pump including a lworking barrel,

a standing valve therein having fluid passageways therethrough, ,a traveling valve therein equipped with means for. working against the fluid pressure at both ends of the traveling valve, said traveling valve being provided with controlled fluid passageways whereby fluid may intermittently and in phase with the change of travel of K said traveling valve be conducted alternately both ways through each of said valves.

13. A pump including a working barrel,

a standing valve therein, a traveling valve in said barrel, both valves having controlled passageways through which fluid may be conducted alternately both ways through said traveling valve and standing valve.

lll. In a deep well pump a barreha standing valve therein, a' traveling valve in the barrel above the standing valve, a tubular Vsucker rod to which the traveling Valve the sucker rod may be discharged beneath the traveling valve, the discharge end of said last named passageway being formed to discharge an annular sheet of cleansing fluid around the fluid being pumped, up through the traveling valve, said sheet of cleansing fluid excluding the fluid being pumped 'from the working joint between the traveling valve and barrel.

l5. In a deep well pump, a barrel, a standing valve xed therein, a traveling valve above the standing valve, autubular sucker rod, to the lower end oi which the traveling valve is attached, each of said valves having fluid passageways therethrough, through 'which the fluid being pumped may be delivered into the sucker rod, valves controlling said respective passageways, said traveling valve and standing valve each having fluid passageways therethrough, through which a cleansing fluid may be delivered from the barrel above the traveling valve, and discharged 'against the valves controlling said passageways vjust preceding the closing of said valves,and a downwardly opening valve controlling the passage of said cleansing fluid through the` traveling valve.

16. In a pump a worlringbarrel, a stand@` ing valve associated therewith, a traveling valve in the barrel, said pump having an annular passageway within Vthe working barrel between said valves forming a guide- `way for a cleansing fluid. l

17. In pump a working barrel a stand` having openings to permit the fluid moving downwardly through the travelling valve to be discharged against the standing valve, said pump also having two passageways inside the working barrel andbetween said valves forming conduits forvasccnding and descending fluid. i y i f i i9. In a pump a barrel, a travelling valve therein, a standing valve associated with the barrel, said pump having passageways for conducting the cleansing fluid through the working parts of said valves during the closing of the valvessaid passageway being disposed so as to `conduct the cleansing fluid between the ascending fluid being pumped and the inside of the working barrel.

In testimony whereof I have signed my name.

CHARLES R. EDWARDS. Y

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