US1714486A - Pump - Google Patents

Description

May 2s, 1,929.

L. D. BAlRD ET AL PUMP FiledA March '7, 1927 f/ J/ j// ///L//// INVENToR A'TTORNEY Patented May 2s, 15929.

i vliilafflf` STATES PATEN oF FICE LYNNE D. Balm) AND SAMUEL nDuRBIN, or TULsafoizLAHoMA.; f

' Pumping Applicationniea Mar-117,192?. sanar N0.Y 173,522'.

Ourtinvention =relates to ypumps and more particularly to pumps ofthe standingvalve type for ,use'in oil wells, theprincipal object 'of the invention being to provide for positive seating of the standiugva'lve and for removal of the standing valve with the working Avalve when re airs o r replacements are required or as a pre .iminary'step inthe clean-k ing out o'fft'hewell. Y

AIn accomplishing these objectswe have provided improved details of Structure, the-preferredpforms of which are illustrated in the accompanying drawings wherein: Fig. 1 is a vertical section of a: portion of `an oil well equipped with our improvementpf .Fig 2 is an enlarged vertical section of' the standing valve, showing thevalve closed.

Fig. 3^is'an enlarged section of the well tubing showing the standing valve'connected with the workingivalve for removal from the well, parts of the valve being Vbroken away for better illustration. .A

Referring more in detail to the drawings: 1 designates an oil wellextended into the oil sand 2 andl comprising a' casing 3 having its shoe 4 seated on bed rock 5j over the oil sand. Extending `through the casingB-into the well pocket .6 istubing 7, provided at its prising a shoulder f14vsupporti1'1g the valve rings l'andV cups 1'6-whi`cl`1 maybe ofordinary construction.y Threaded intof'th'e` head. 13 a depending tube 17 which extendsinto the strainer `to receive the oil to be passed through the pump. The-upper valve cup 15 is elongated'with its body threaded onto the sleeve'1'2 to compress the-'packing rings and having an inset shoulder 18jv and threadedl nipple 19 for receiving the valve vcage 2() of ordinary construction, comprising. the lower collar 21 having threaded connection with the valve cup extension 19, the ribs 22 spaced to form the port openings 23 and an upper neck V24, which latter is extended' to form a stem guide and provided with downwardly facingcorrugations 25 on its outer faceto provide a grip for a fishing tool in case of necessit Within the valve cage is a reversible va ve seat 26 comprising a ring 27 having a lner vface of the valve cage. l j Slidable in the guide neclr'24 is a stem 3() having a threaded shank -31 at its lower end a pump embodying i' gripped bya tool as presently described-i" beveled Vinner edge23 atftop. and bottonr'for receiving avalve as will presently be de-v lscribed,'and havingan outstanding annular ring 27 located between the top of the valvel cup extension 19 and a shoulder 2.97011 the in- 60 l carrying'thefvalve'head 32" which is held to Vthe shank Vand againstthe collar 33 on v'the V'lower en'dfof thestem by a nut The valvev y head `is threaded onto the shankv 31, and 'in f order to facilitate rapplicationo the" head to the shank and its removal therefrom, I' provide the head with laterally opening recesses 35 for receiving a Spanner wrench.'` TheV stem 30 is oi a length to extend ashOrtdiS- tance above thetop of the valve cage andhas -f a pin36 located in the transverse borey 37 eX- tending1v through the stein near its upper. end

and held in place by a set `screw 38 that extends through the end ofthe stern to'contact with the pin ;V theends of vthe pin; projecting suici'ently from the sides of the stem to be Theworking val'vefcomprises a cage 39 sus'- lpended lfrom the usualsucker'rods 40 and housing a fluid' check valvel for:` controlling flow through the workinglbarrelwhen'qthe working valve is reciprocated by they sucker f rods. Inone'construction asthelower member of the rworking valvey 42 carries a'male thread, vprovidea collar r44 which threads A onto-threaded: neck 43 provided with a down-A Wardly extending sleeve 45 provided with downwardly opening bayonet slots 46, l*one side having an arm capable of permitting a seating engagement of pin-36 on valve stem rod 30,*so-that after the working valve is hookedv to the standing valvelit-w'i'llbe -possible: to'lift valveV head-32 off-its seat 2 7 to vbleed the chamber above ofluid, and to eliminate forehgnV substance which might have' becomeV temporarily seated in and wouldv af-fy feet the eiicient seating of the valve;v We do not' desire to be limited to any one manner of connection from the workingvalve' to 'ing valves will require different means `of clutch connection, the manner of clutch openingand seat, however, being identical in so far as engagementv with pin 36on valve stem 3() of the standing valve is concerned.

The reducing neck between the collar and v Y sleeve 'is preferably provided with ports 47 1 the vstanding valve, as different type workfor permitting a greater liuid entry 'to the ing valve through the bayonet jointtFig Vand the two valves let in Vto, ether on the sucker rod. lVhen the standing valve reaches the coupling at the bottom ofthe tubing, weightof the rod will force the standing valve to its seat, butin order topinsure a close lit of the standing valve head in the coupling seat, it is desirable to raise and lower the suckerrod with short strokes to reciprocate the stem of the standing valve in its guide neck to produce a jarring action which will hammer the standing valve to its seat.

lVhen the standing valve is set, the work ing valve is given a part rotation to expose the vertical leg of the bayonet slot to the pin on the standing valve stein, andthe working valve is raised in the tubing to free the-standing valveand position the working valve in proper pumping` location. Tit-h the parts so arranged, the pumping may be effected by Y reciprocating the workingvalve by means p. of the sucker rod, the automatic valves openling and closing 1n accordance with ordinary pumping practice. Y

Should it be desired to remove the standing valve for repairs or replacement or when the tubing is to be pulled at well cleaning periods, the Working `valve is lowered onto the standing valve and rotated Ato seat the pin 36 in the bayonet slot. When the valves are connected through the bayonet'joint, the working valveis lifted, lifting the standing valve and carrying the latter with'it from the well. Should'th'estanding valve stick in its seat so thatan ordinary pull is insuiiicient toremove it, then the shortstroke, jarring action heretofore described may be resorted to, the `head of the standing valve rapping the top of the cage at the upper limit of .its reciprocation to jar the valve cage from its coupling seat. It isapparent that when the standing valve is lifted through connection of its'stem with the working valve, the standing valve isunseated so that contents ofthe tubing may flow-out through the valve and relieve the rod ofthe weight of the oil in tions to eliminate dead weight of the conw tents of the tube above the valve, i

Itis also apparent that bec-anse of the eX- tension of the stem of the standing valve for a substantial distance through the guideneck of its cage, an accurate true seat of ,the stand ing valve headis effected, which increases the serviceability of the valve. l

lVhat we claim and desireto secure by Letters Patent is: r 1

l. In a pump, a working valve, a swedged coupling on Athe lower .end of the Vworking valve having openingsifor the passage of oil.,

a standing valve comprising a cage, a valve seat and aneck on the cage, a valve member cooperative with said seat and having a stem slidable in said guide neck and receivable in the swedged end of the coupling, and means on the swedged coupling and on the standing valve stem for removably connecting the working valve with the stem.

2. In combination with a pump barrel, a standing valve at the bottom of the barrel including a seat, a crown and a stem slidable in the crown, having a valvel member on vits lowercend co-operative with the seat lwith Y its upper end terminating within the barrel abovetheicrown, a plunger' reeiprocable 1n fthebarrel having a nipple at its lowerv end adapted to receive vthe upperv vend of the a standing valve stem, the nipple and stem hav ing one a bayonet-slot and the other a pin for interlocking the plunger and stem` In testimony whereof we ,l aiiiX our signatures. i Y

LYNNE D; BAIRD. i 4 SAMUEL B. DURBIN.

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