US2508746A - Suction bailer - Google Patents

Description

Patented May 23,A 1950 UNITED STATES PATENT QFF'ICE SUCTEON BAILE?? Elmo Il. Gondra, Loris,r Beah, Calif.l rplieatiprl .February 19, 1.946,. Setialle ,G e claims. (01, 16s-19) 1 This inventipri relates te a suetlerl beller te be used luwells fer the purpose et retrieving sand .dirt arid .other aeeumulatleiif .iu the Well.

'This 'in'veutierl' relates 'te the type el taller .liavinie a self euilta'iiieel plunger' Whlelli is reeiereleatel. by ef a suprertlpe sable, this pluueer .er1 "reeipreeatipn ereatlng' a reduced pressure Lvv'it-,lliu the teel; thus drawing slaud and other material .er artielles'iute the barrel of the teal .se that this material eau be lifted te the surface. An object of`my invention is to provide a novel suetieu beiler wherein an autematle valve eperls there is pressure in the tle'el 'thereby relievthis pressure; but the valve .remains eleseel as leus es there is. a reduced 'er suetierl in the' te'el.

enether ebieet ,is te previste a uevel leettem valve assembly .la a suttieri taller whereby .perte are autematleally'eeeueel when tue teel eaters la layer et 'send er .ether material, erle the valve eleses as seen as the teel is lifted. "A feature of my '.irlveutlell 'resides lll the serine' which tends to close the bottom "Sleeve valve and ,also acts as 'a centering lrrs'ea'ns for tire tool.

Still another' feature is to 'provile'a novel pressure relief 'valve Within the tool, this valve being automatically Qpenedas 'soon'as a predetermined essure has been -built up within 'the 4tool.

' 'OtherV objects, 'advantages' and features pf invention' may 'appear 'from the accompanying drawing, the sbj'oinel cletailegl description ancl the appended claims. HIn the (ir/Whig?Y 'Figure l is a quarter sectionalfview of the upper part of my bailer showing the reciprocating plunger.

'Figure 2 is a quarter sectional View of the lower paire of'mybaiier."

* Figure 3 isa quarter sectional view of the valve portion of my baler showingfthe valve in Closed psition.

" Referring more particularly to the drawing, bellers are" frequently' 'used ip casing or tubing, which isusually placed. in' a Wel-l such as an oil ivell- This tuples' er @asias is shown at l, and is lellal arid Well lsuewrl lrl'tlle art- My suction ball 'r .2 eeuslsts ef au puter barrel 3, which is .ruelfirl plurality ef seetl.` s; which will be subsequently 'deserileesl .ill eetl .A plunger 4 extends lute the tela er the learrel threueh a peels- ,lug gland 5- Aittins or; the top 0l the plunger enables .this plu vser to he .attached to a cable seelset' l. iu Wtuet sable is seeurei The eutire teal is ,suse-eusse ou :the ealele and also.

as this' cable is rciprocated. the plunger 4'Wi11 move due te the lett ,that vtue teal resting au the sauel. `er other material Wtllell' ,ifs Wltluir'the pipe or tubing l: w 'v en the lower yrare .er tue perret ,s tuere is reeuuted er attaelled el situe' Sz in. 'vvllleh apluf rality of side iulet perils, l!! are eut. A niet??? 'll ,screws lute. the lever eed .ef tile sltee 9" and, releasing valve I'Z is'mouted in 'the nipple Il" sg that the lluld er etller material .lu tlle taller .een be removed Wuea'tlle teelis vvltlleravru frejm the Well- Tllls valve l? le usual alle Well lsuwa ln. ballers ef. this type.- ll Sleeve l?. 'is slldably mounted eu the'eutslde ef tlle 's llee'? and normally savers the Herts lll-tllat Aeral/ity will vnormally held the .le the. levver ,Resi ,ariel also a spring 1 4 urges the' sleeve 'slew vrlly- The serine I4 is learel ,sllauetl se that ,lt will en.-` eaee the leise .er tubing I. aus tuus terul to seater the beller as tile' beller .is .dreleped .lute the sane er ether material, the s'le e ".13 will be forced upwardly against' the te n el tlle spring l5'. thus @perline theperts l!! s0. that salud and ether material can enter the blll'f Y I l y Y It is obvious that as tlfrev eluueer 4 yis reeieref eated a suetieu will erreur en .eue strelse .ana a pressure on the opposite stroke. To prevent the .building up ef pressure within the teel7 l Previde an autemate val elllen euteutate'ally @peus whenv a presleterraf ,eu uressure -eeeurs witlllri the bauer, .anu this valve seusllsts et the'tellewieer A tubular valve 'le is eulfletl lu tlle pipe eeutllue .lten annular paelslrtell is .ureyi'sled la' the sop .ef the valve leganel .this eaellus eeeaees the rlrle '.8 .in the closed pesitleri ef tue valve! Tue rlae 't is attuate-a 'in' the uleeeeurliue t .in a suitable manner es yvelellue erettile, ete- A plurality ef parts. .20 are eut la the Wall 'elf the bailer, and as' the valve yIf 'moves downwardly', these ports are Queries! tluls perruittlue the escape ef any pressure iu tile 'barrer is ring 2l pears, against tue .peu-pm ef .the tubular valve, l5, and a spring 22 bears against the ring and. ure-es the tubular valve upwardly to its Closed position. Faerie beets :sans 24 are aueehetl to the top and bottom of the tubular valve 1,5 resleeetivelyland. est te'ereveut the Vaus;.uululatierl ef any A.material sueh .en tule eutsiaeef the valve wleieh might prevent its'free sliding movement.. The .spline 2? rests e'rl a nipple 25'; and this nipple threads ,into a .oupling 2;6. The tension ef'tlie spring .22 een te adjusted by lireadlne the .nipple Z tuer `eut e'f the eeuullfle ,Irl aperatieu, tllefteel :le leu-ered. lute tlle wel! and sinks into' the sand or other materialin the well due to its weight. As the tool sinks into the sand, the sleeve I3 is pushed upwardly against the tension of the spring I4. The .ports I are now open, and the sand or the like, can enter the tool. The cable 8 is now reciprocated, which moves the plunger 4 and each upstroke of the plunger will create a reduced pressure within the bailer. This suction within the bailer causes the sand or other material to be forced through the ports l0, and will iill the lower part of the bailer. The down stroke of the plunger 4 will tend to create a pressure in the bailer, and as pressure is built u-p, it will act on the upper surface of the tubular valve l5, pressing this valve downwardly against the tension of the spring 22. Since there is a larger area on the top of the valve than on the bottom, the valve will be forced downwardly oir of its seat. The ports 20 will thus be opened and the pressure will be relieved. Asl

soon as this pressure relief occurs, the spring 23 again closes the valve I5, and the plunger 4 continues to partially evacuate the bailer on its next upstroke. Any pressure without the bailer will act on the top surface of the ring 2l, as well as against the bottom surface of this ring, and consequently, this ring is placed as far as pressure is concerned. Consequently, the only upward thrust tending to close the valve l5 is the spring 22.

Having described my invention, I claim:

l. In a suction bailer comprising an outer barrel, a plunger slidably extending into the barrel, a cable attached to the plunger whereby said @plunger is reciprocated, a tubular valve mounted for vertical movement in the barrel below the plunger, said barrel having exhaust ports therein adjacent the said tubular valve, said tubular valve being movable to open said ports when a predetermined fluid pressure in the bailer is exerted on said valve, a shoulder on said valve against which the fluid pressure is exerted to open said valve, and spring means engaging the tubular valve and urging said valve into position to close said ports, and a valve seat on the interior of the outer barrel in the upper end of said tubular valve, engageable by said value when in port closing position.

2. In a suction bailer comprising an outer barrel, a plunger slidably extending into the barrel, a cable attached to the plunger whereby said plunger is reciprocated, a tubular valve mounted for vertical movement in the barrel below the plunger, said barrel having exhaust eports therein adjacent the said tubular valve, said tubular valve being movable to open said ports when a predetermined fluid pressure in the bailer is exerted on said valve, a shoulder on said valve against which the iiuid pressure is exerted to open said valve, and spring means engaging the tubu lar valve and urging said valve into position to close said ports, and iiexible boots mounted on both the upper and lower ends of the tubular valve, said boots closing the space between the outside of the valve and the inside of the barrel to prevent accumulation of sand on the outside of said valve.

3. In a suction bailer comprising an outer barrel, a plunger slidably extending into the barrel, a cable attached to the plunger whereby said plunger is reciprocated, a tubular valve mounted for vertical movement in the barrel below the plunger, said barrel having exhaust ports therein adjacent the said tubular valve, said tubular valve being movable to open said ports when a predetermined fluid pressure in the bailer is exerted on said valve, a shoulder on said valve against which the iiuid pressure is exerted to open said valve, and spring means engaging the tubular valve and urging said valve into position to close said ports, and a valve seat on the interior of the outer barrel at the upper end of said tubular valve engageable by said valve when in port closing position, and flexible boots mounted on both the upper and lower ends of the tubular valve, said boots closing the space betweenthe outside of the valve and the inside of the barrel to prevent accumulation of sand on the outside of said valve.

4. In a suction Ibailer comprising an outer barrel, a plunger slidably extending into the barrel, a cable attached to the plunger whereby said plunger is reciprocated, a tubular valve, mounted for vertical movement in the barrel below the plunger, said barrel having exhaust ports therein adjacent the said tubular valve, said tubular valve being movable to open said ports when a predetermined uid fpressure in the bailer is exerted on said valve, a shoulder on said valve against which the iiuid pressure is exerted to open said valve, and spring means engaging the tubular valve and urging said valve into position to close said ports, a shoe on the lower end of said barrel, said shoe having ports in the side thereof, a sleeve slidably mounted on the shoe and movable to open said ports in said shoe in one position of the sleeve, and a spring engaging the sleeve and urging said sleeve into position to close said ports in said shoe.

5. In a suction bailer comprising an outer barrel, a plunger slidably extending into the barrel. a cable attached to the plunger whereby said plunger is reciprocated, a tubular valve mounted for vertical movement in the barrel below the plunger, said barrel having exhaust ports therein adjacent the said tubular valve, said tubular valve being movable to open said ports when a predetermined fiuid pressure in the bailer is exerted on said valve, a shoulder on said Valve against which the uid .pressure is exerted to open said valve, and spring means engaging the tubular valve and urging said valve into position to close said ports, and a Valve seat on the interior of the outer barrel at the upper end of said tubular valve engageable by said valve when in port closing position, a shoe on the lower end of said barrel, said shoe having ports in the side thereof, a sleeve slidably mounted on the shoe and movable to open said ports in said shoe in one position of the sleeve, and a spring engaging the sleeve and urging said sleeve into positon to close said ports in said shoe. 6. In a suction bailer comprising an outer barrel, a plunger slidably extending into the barrel, a cable attached to the plunger whereby said plunger is reciprocated, a tubular valve mounted for vertical movement in the barrel below the plunger, said barrel having exhaust ports there- 4in adjacent the said tubular valve, said tubular valve being movable to open said ports when a predetermined uid pressure in the bailer is exerted on said valve, a shoulder on said Valve against which the iiuld pressure is exerted to open said valve, and spring means engaging the tubular valve and urging said valve into position to close said ports, and iiexlble boots mounted on both the upper and lower ends of the tubular valve, said boots closing the space between the outside of the valve and the inside of the barrel to prevent accumulation of sand on the outside of said valve, a shoe on the lower end of said barrel, said shoe having ports in the side thereof,

a sleeve slidably mounted on the shoe and movable to open said ports in said shoe in one position of the sleeve, and a spring engaging the sleeve and urging said sleeve into position to close said ports in said shoe.

7. In a suction bailer including an outer barrel, a plunger slidably extending into the barrel, a cable attached to the plunger whereby said plunger is reciprocated, a shoe on the lower end. of the barrel, said shoe having ports in the side thereof, a sleeve slidably mounted on the shoe and adapted to close said ports in one position of the sleeve, a tubular relief valve mounted for vertical movement, in the barrel and positioned below the plunger, said barrel having ports in the side thereof, adjacent the tubular relief valve, said ports being opened on movement of the tubular valve when a, predetermined fluid pressure in the bailer is exerted on said tubular valve, a shoulder on said valve against which the pressure is exerted to open said valve, an annular seat on the interior of the outer barrel at the upper end of the valve engageable by said valve when in port closing position, and a spring bearing against the lower end of the valve whereby said valve is urged into closed position.

8. In a. suction bailer including an outer barrel, a plunger slidably extending into the barrel, a cable attached to the plunger whereby said plunger is reciprocated, a shoe on the lower end of the barrel, said shoe having ports inthe side thereof, a sleeve slidably mounted on the shoe and adapted to close said ports in one position of 'the sleeve, a tubular relief valve mounted for vertical movement, in the barrel and positioned below the plunger, said barrel having ports in the side thereof, adjacent the tubular relief valve, said ports being opened on :n Qvement of the tubular valve, when a predetermined fluid pressure in the bailer is exerted on said tubular valve, a

shoulder on said valve against which the pressure is exerted to open said valve, an annular seat on the interior of the outer barrel at the upper end of the valve engageable by said valve when in port closing postion and a spring bearing against the lower end of the valve whereby said valve is urged into closed position, and flexible boots on the upper and lower ends of the valve, said boots extending between the valve and the inside of thebarrel whereby accumulation of sand around the valve is prevented.

9. In a suction bailer comprising an outer barrel, a plunger slidably extending into the barrel, a cable attached to the plunger whereby said plunger is reciprocated, a tubular valve mounted for vertical movement in the barrel below the plunger, said barrel having exhaust ports therein adjacent the tubular valve, said valve being movable to open said ports when a predetermined fluid pressure in the bailer is exerted on said valve, a shoulder on said valve against which the fluid pressure is exerted to open the valve, spring means engaging the tubular valve and urging said valve into position to close said ports, a ring seat on the interior of the outer barrel at the upper end of said tubular valve, engageable by said valve when in port closing position.

ELMO L. CONDRA.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Cavins May 24, 1938

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