US1432768A - Working barrel for wells - Google Patents

Description

A. .'w. YMccALL|sTER. WORKING BARREL FOR WELLS. -RPPLICATION FILED JAAN. I9, 1922.

24, 1922?-L 2 SHEETS-SHEE] l.

mames.,

IIIIIII vill!) 0 lllnffnalllllllllllli inl: lulllllllldlllltrilll.. lv l JA .i

Patented Oct.

ArhurwM- Bau-LELE? A. W. MCCALLISTER. WORKING BARREL FOR WELLS.

,1922. 2 SHEETS-SHEET 2.

APPLICATION FILED 1AN.I9. 1922.

Patented' oct. 24

Y y l In/vento@ Y APhur'WT/IBEELLL Patented ct. 24, i922.

moslims-Banani non WELLS.

A.Appliilationle'diJanuarv 19;"1515272.` Serial No. 530,416.

'T01-'f @ZZ/Mom it may concern: Y

V'Belitk-Iioivin that I', ARTHR W. MCCAL- .Lisiriimacitiz'enf of the United States, resid- ,ing at 'Baird7` in the county` of Cotton and State vof Qllahoma, have' invented certain new and` useful"linproveinents in Working 'Barrels f'or' iVellsof which' the following is as'peei'cation. 1

invention relates. to pumps for deep "Wellg; Such" as`oil` Wells, and the primary `ohlject @of this invention' is the provision of nov'elfmeaiis" for insuring the correct operation .of thefpiimp by preventing the settling Vojflsand or, other foreign. matter'on the v lves, which vvvoiild tend toc'log said valves, and vthus prevent the free. operation thereof. Q'In'ld'eep Wellfpumps considerable difficulty has heen-experienced with sand getting into the' nioifliin'g barrel Vand` clogging up the standing laridiWorking valves, often necessi tati-rigfthe pulling ofthe valves andthe cleaningout of the `Working barrel. C0nsiderahle ,experimenting has been. done 4in ,O''derto prevent the-'sand from getting into Athe Working'harrels and certai-nsand traps have been designed, 'which have not been folunid to 'be satisfactory in `use.

lt-is`therefore a prime. oh'ject. ofthe inventioi'ito'fprovidea novel Working barrel frpnnips and a vrnovel arrangement of valves therefor,` u'rrfiereloyl the collecting of lsand in the lo'arrelfand on'the vvalves and seats will absolutely' beprecluded,the valves -and'Workng barrel being so constructed as to f permit i the fluid passing therethrough to Wash fandlreep the valves in a cleanly condition.l n Y Another object of the invention is the pro- `vision of a Working barrel for fitting directly Within the pump casing and spaced therefrom` and having valves disposed in `Workingbarrel for forcingthe-liquid ,iii'st'into the lovvervportion of-the working loa-riell and then out hetweenthe working barrel and casing intothe ordinaryl casing .pire 4 'l furtherohject of the inventioniis the provision of. novel means for preventing the 4falling'-of' sand kor other dbrisiinto the Yivorlinguharrel of-the pumpas the fluid is forced-up intothe Well vca'singpipe and to providea novel 4means for preventing the collecting"of sand at the lower eend of the WorkingJoarrel. ,ports being disposed therein in' such a mannerfafsfto permitfthe sand to be wa-shed ont-.from the lower endoffthe workd harrel and finto the spa-ce intermediate the Working -`barrel .and the Well vpump casing.

` fr still furthery ohjectof the invention is to provide val noveldevice for preventing the Ycollecting of 'sand or other foreign matter around the standingand Working valves of `purnps of 'the above character, Which will he .durable Vand eiiicient in use, one that will be s iinp'le and easy to manufacture, and one vwhich can be associated With.. the pump cas ing at allow cost. l

'Vith these Vand other. objects in view, the invention consistsin the novel construction, arrangement' and formation of parts7 as will he, vhereinafter more specifically described, claimedand illustrated in the accompanying "draai"ings,` forming" a. partof this specification; in `which drawings `l `igure l `is a vertical longitudinal section ltln'ough V a ivellipump easing `and Working Barrel thereof, shoiving the standing valve andjtlie Workingplunger or .piston in eleva.- tion.l v

Figure' Qlis Aan enlarged longitudinal sectional' view through the Well pump casing, barrel-andfstanding' valve .and operating plungeixshowing the plunger in its lowermost position.

Figure 3 is asimilar view showing-the Working' or opjeratingnplunger in a raised lposition and illu'strating` the position. of the inletl anfdhoutlet valves when thev plunger is 'inits raised position. lug-ure 4lv isa detail ,transverse section taken :ony the line ,4V-4. of Figure 3, illustratvingthemanner of connecting the air escape valve to the `vprking Vor operating plunger gland.-

'Figuren is a detail section taken von the line of Figure 3 shoivingthe air escape or, pressure, port'. y

'Figure 6 is an enlarged detail transverse section taken on thle`line 6j-6 of Figure 3, illustrating the iuid 4escape ports in the standing valve. l

`Figure 7 is -an enlarged detailtransverse sectionta-kenpn the line 7 7 of` Figure 3. l Figure-8 is an enlarged detail transverse Asection takenon'theline 8 8 ofV Figure 3. 'Referring to the drawings in det-ail, avherein similar reference characters desig- 'na-teYcerrespendingV parts throughout the ,sever/alvvievvs, the'letter `nindicates a Well pnmpca'sing; BVa working barreli C. the standing orstationaryportion of the pump;

. D, the operating or working portion of the pump; E, the means for preventing the settling of the sand or other dbris into the working barrel at the upper end thereof; and F, the means for permitting the escape of pressure through the Working barrel onA the up stroke of the working or operating plunger.

The well casing A consists of the usual ynumber of pipe lengths, which can be connected together in the ordinary manner. A section 11 is interposed between certain of the pipe lengths for the reception of the working barrel and this section 11 has its upper and lower ends Contracted as at 12 and 13. The contracted portion 13 forms a seat for the standing portion or valves of the pump and a seat for the working barrel B as will be hereinaftermore fully apparent as the description proceeds.

The working barrel B consists of a cylindrical tube 15 which is entirelyindependent of the section 11, and has a diameter less than that of the section 11, in order to form a chamber 16, between the section 11 and the working barrel. The tube -15 is preferably formed in sections to facilitate the assembly of the vparts of the pump and includes the upper section or gland section 15', the intermediate section 16 and the lower section 17. These sections are threaded to certain stationary portions of the pump as will be hereinafter described. The upper end of the barrel B extends through a guide plate 17, which can be formed of any suitable rigid material, andthis plate can be held in position in the sect-ion 11 in any preferred manner.

By way of eXample,-the same has been shown held in position against displacement by setting the same between upper and lower portions 18 and 19 of the section 11. These portions 18 and 19 can be connected together by suitable collar 20. This plate 17 is provided at spaced points with openings '21', which establish communication between the chamber 16 and the upper port-ion of the section l1 and form escape ports for the fluid being pumped.

The standing portion of the pump consists of a central suction tube 25, which has a novel packing gland 26 associated therewith for establishing intimate contact between the same and the contracted end 13 of the casing A.

This packing gland comprises a sleeve 27 `fitted upon said suction pipe 25. The lower end of. the `sleeve is provided with an enlarged head 28, in which is threaded a nut 29. The upper end of the sleeve 27 is provided with exterior threads and threaded into a plug 30, which is in turn threaded into engagement with the lower end of the working barrel B. Confined between the plug 30 and the head 28' formed upon the .This plug 32 is provided with an annular row of spaced ports 33, through which the fluid is adapted to flow as will be hereinafter more fully apparent. The lower face of this plug 32 is provided with an annular valve kseat 34, on which is adapted to normally rest the outlet valve 35. This valve 35 has an annular raised portion 36, which is adapted to snugly fit within the annular seat 34 formed in the plug. The valve 35 is slidably mounted upon the suction tube 25 and is provided with the hollow cylindrical sleeve 37, around which is coiled an expansion spring 38. The terminals of the expansion' spring engage respectively the upper surface oft-he plug 30 and the lower surface of the valve 35 and normally holds the valve 35 in a raised position on its seat 34. The upper end of the suction tube 25 exq tends slightly above the plug 32 and is provided with. a' valve seat 39 for the reception of a ball valve 40, which forms the inlet valve. A suitable cage 41 may be carried by the valve seat in order to prevent accidental displacement of this valve from operative position off of its seat. The barrel `B directly above the plug 30 is provided with suitable outlet ports 42 as clearly shownin Figures 2 and 3 of the drawings. A

The plunger or operating portion D of the pump comprisesv the suction or operating rod 50, the lower edge of which has secured l thereto the suction head or piston 51. This vsuction head or piston 51 consists of body 52 preferably formed of rubber packing or the like, and this body is confined between a pair of metal discs and 54. The lower end of the rod has threaded thereon a nut 55, againstjwhich bears an expansion spring 56, This expansion spring has its lower end bearing against the disc 54 and normally tends to holdv the same in contact with the body 52. The upper surface of the disc moved into intimate contactwith the inner surface of the working barrel B. The rod 50 extends through a suitable packing gland 60, which is supported by a plug 61.'v 4This plug 61 connects the upper section 15 and y the intermediate section 16 together. p y

The base 62 of. the gland 60 is threaded inM x.normally closed by a valve 7l,`r which is held on-itsseatwithin the ,port by means ofr an Theupper end of the ofthe upperend of thesection or gland pro- -tector l', andjcovers the opening 68 therein through-which theplunger rod 50 extends .andzabsolutely precludes the falling of sand or otherdbris. within thefworling barrel.

The-means F torrelieving pressure within .the :Working barrel between the plunger 52 and the rod 6l, consists of aniescape .port70 formed in=theplug 6l. l`hisescape port is `.expansion,spring `72. :The valve and ex- ,pansion vspring are carried ,by an arm T3,

which is secured in Aany .preferred manner,

.-suchHas by a-.collar "(5A with the gland base ger and plug, whichwillvfaeilitate the ,opera- Qtionof the plunger' due to the fact that the -plunger'will not have to yoperate against al carrythe same away fromzthe valve seat 39 y.andtheifluid-will carry the same through the-ports fand around the valvewS. In 1. .order to further l .permit the lcarrying `oft of 62. In the initial starting of the pump, the aiuconfined between the/.plunger and `plug 4willbe forced above the plug 50 and thus create,l a .partial vacuum between the plunhead .Ott air.

.f In operation of the improved device, upon :the up :stroke ofthe plunger or piston 52, vtheinlet valve 40 will be moved off of its seat y39,V and, a suction will be causedl within the y pipe 25,A suckingfthe--fluid therethrough and w40;

`.into-the working barrel B abovethe plug 32. During; this operation, the outlet valve 35 vlwillibe. held uponits seat. During the rais- .ing movement of the plunger, theuair .con-

lined between-xthe plunger.A and the plug 6l Jifaany, will ,be permitted to escape, owing to the fact vthat the` pressurewill lift the `valve 7l from-.offofyits seat. Upon the down stroke ofthe piston or plunger-52, the `valve Zl0 will .beforced on lits seat, while the outlet.V valve 35 will bemoved off. its seatfthus .permitting` the `.escape of the vfluid through )the ports 33 into thelower end of the work l ing barrel 4.below the pluggSQ through the out- -let ports.,LlvformedA in. the barrel. and then 11155* theplate. 17 and then on up `into thepump i casing.

*Byythisconstruction, it can .be seen that throughstherescape ports. 2L formed within if-any-,sand isdrawn up .with fthefluid through thesuction pipe 25, the flu-id will any sand around the valve 35 and preventthe A- rel and casing .adhering ofhsand around the same .inclined ports. 80, are. Jformed directly. in the valve and thusdt can be seen that the sand will drop therethrough, and be washed and be carried through these ports. If any sand 1s carried up with the-fluid through the chamber 16,

and through the ports 2l, it will be prevented from flowing back into 'the barrel owing to the vfelt washer 6T engaging the dome shaped head of the gland protector ,or section 15.

`From thc :foregoing description, it can be .seen that an improved and simple means has been provided for rendering a pump posi tive in operation and for absolutely preclud .ing sandinguup of the valves and working barrel.

- Changes indetails may be made without departing from the spirit or.scope of this invention; but,

l claim:

l; In a well pump, a casing, a barreldisyposed in thecasing in spaced relation thereto forming a chamber between the barrel and casing, means for establishing fluid ti'ght ..Y

connection between the lower end of -thebar- D, an inletpipe extending -into the barrel and establishing communication between the barrel belowthe means vfor` .es-

tablishing fiuid tight connection between the,`

barrel andcasing, an inlet valve for controlling the-flow of fiuid through the pipe, a

body having ports ltherein fitted around said pipe in :fluid tight engagement with the barrel, escape portsl formed in the barrel.. vbelow the body and establishing comm-unication between the barrel andthe chamber .between the casing and barrel, a valve .for

Controlling flow of fluid Vthrough said body,

and a plunger reciprocably:mounted within,

said barrel.

' 2.' In a well pump, a casing, a working barrel disposed inthe casing and arranged m `spaced relation. thereto forming a chamber intermediate-'the casing and barrel, any Opf 4eratmg plunger in said barrel, means for preventing the entrance ofcfiuid and foreign `matter into said barrel above the plunger,

a lower stationary men'iberfitted in said barrel, means for establishing fluid tight,

connection between said member and the casing, a suction pipe carried by and terminating above said member, `an yinlet valve ycarried by the upper end of the suction pipe,

an outlet valve carried by the member and disposed below the inlet valve and above said means for establishing fluid tight `connection between the casing and member, and outlet ports formed in the `barrel above said means-for establishing fluid tight connection between `the member and casing and communicating with the chamber intermediate the ,casing and working valve.

8. In av well pump, a casing, a working barrel disposed in thefcasing.' and; arranged in spaced relation thereto forming a chamber around said barrel, means for establishing connection between the lower end of the barrel and the casing, means for preventing the entrance of foreign matter in the barrel at the upper end thereof, a plunger disposed in said barrel below said last mentioned means, a member fitted within the barrel, means for establishing fluid tight connection between the lower end of the barrel and casing, means for permitting the fiow of liquid through said member into the barrel above said member, an inlet valve for controlling the flow of fiuid through said means, an outlet valve carried by said member and arranged below the inlet valve and above said means for establishing fluid tight connection between the casing and barrel,

and means for permitting the flow of fiuid from the barrel below said outlet valve into the chamber through said barrel.

4. In a well pumping` apparat-us, a casing having a working barrel seat formed on the lower end thereof, a working barrel fitted within the casing and arranged on said seat, the barrel having a smaller diameter than the casing and arranged in spaced relation to the casing to form a chamber around the same; a working plunger in said barrel, means for preventing the entrance of fluid and foreign matter into said barrel above said plunger, a stationary member disposed in said barrel atI the lower end' thereof, means for permitting the flow of fluid through said member into said barrel, inlet and outlet valves carried by said member, fluid escape ports formed within the barrel below said valves and communicating with the chamber, and means for permitting the escape of pressure within said barrel above said plunger.

5. In a well pumping apparatus, a casing having a barrel seat formed therein, a barrel having a smaller diameter than said casing disposed therein and fitted on said seat and arranged in spaced relation to the casing, an operating plunger in said barrel, means for preventing the entrance of fluid and foreign matter into the barrel above said plunger, a rod carried by the plunger, means for preventing the seeping of Huid around said plunger and into said barrel, means disposed in the barrel above said plunger for permitting the escape of air above said plunger during the operation thereof, a stationary member carried by the lower end of the barrel arranged in fluid tight connection therewith, inlet and outlet valves carried by said member, and outlet ports formed in the barrel below said inlet and outlet valves establishing communication with the barrel and the space intermediate the barrel and casing, the said ports being arranged above the lower end of said barrel.

6. In a well pumping apparatus, a casing having a barrel seat formed therein, a barrel having a smaller diameter than the seat fitted therein and resting upon said seat, a plunger reciprocably mounted within said barrel, means for'preventing the entrance of fluid and foreign matter in the barrel above said plunger, a suction pipe extending into the lower end of the barrel, means fitted around the suction pipe for establishing fiuid tight connection between the suction pipe and the lower end of said barrel, an inlet valve carried by the Lipper end of the suction pipe7 an outlet valve fitted around the suction pipe, outlet ports formed in the barrel below said outlet valve, the ports being arranged above the lower end of the barrel, and resilient means for normally maintaining the outlet valve in its raised operative position.

7. In a well pumping apparatus, a casing having a barrel seat formed therein, a barrel having a smaller diameter than the casing tted concentrically within the casing and disposed upon said seat, a plunger reciprocably mounted in the barrel, means for preventing the flow of fluid and foreign matter into the barrel above said plunger, a suction pipe disposed in concentric relation to the lower end of the barrel, a packing gland disposed around the suction pipe and engaging the casing to prevent the flow of fluid past the barrel and suction tube, a valve seat disposed about the suction pipe adjacent to the upper end thereof engaging said barrel, the seat having a plurality of ports extending therethrough, an inlet valve carried by the upper end of the suction pipe and disposed above the mentioned valve seat, an outlet valve slidably mounted upon the suction pipe, means normally maintaining the valve on its seat, the valve having ways formed therein for permitting the passage of fluid therethrough when the valve is forced off its seat, and escape ports formed in the valve below said outlet valve and above the lower end of the barrel and said barrel seat.

8. In a well pumping apparatus, a well casing having a working barrel seat formed therein, a working barrel having a smaller diameter' than the casing disposed in concentric relation to the casing, a member fitted in the lower end of the barrel in fluid tight connection therewith and resting upon said barrel seat, inlet and outlet valves carried by said member, means for establishing communication between the barrel and the space between the barrel and the casing below the inlet valve, a plug fitted within the barrel above said plunger, a packing gland carried by said plug, a plunger rod connected to the plunger and extending through said packing gland, an air escape formed in said plug, and a spring pressed valve for controlling theJ flow of fluid through said port.

9. In an oil well pumping apparatus having a working barrel seat formed therein, a working barrel having a smaller diameter than the casing fitted in said casing in spaced relation thereto, a plunger reciprocably mounted in said barrel, a plunger rod connected to the plunger, a guide plate for the upper end of the barrel engaging the casing, the barrel having an opening therein for the reception of the plunger rod, a plug disposed in the barrel above said plunger, a packing gland carried by the plug and disposed about said rod, a felt washer disposed about the rod and the upper end of the packing gland for engaging the inner face of the upper end of said barrel to prevent the How of foreign matter into the barrel above said plunger, an air escape port formed in said plug, a spring pressed valve carried by the packing gland for normally {itting in said port, a member carried by the lower end of the barrel and arranged in fluid tight connection therewith, inlet and outlet valves carried by the member7 means for permitting the flow of iuid through said member, and ports formed in the barrel below the valves and establishing connection between the barrel and the space intermediate the barrel and the casing, said ports being arranged above the lower end oi"- the barrel.

ARTHUR W'. MCCALLISTER.

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