Патент USA US2136229код для вставки
‘N°v.8,1928. > GjJBALDWINh-TAL. NATURAL GAS PRODUCT ION Filed May 1e, 1233 2,136,229 kPatented Nov. 8, 1938 * 2,136,229 x UNITED: STATES; mfr-awr> OFFICE-. ' x ' George' Judsonßaldwin NATURAL ` „Ámsazza .Gasand PRODUCUON» George Wesley Addy,` ~ N ~ , Cayuga, Ontario, Canada' \ y l y ‘f , _ ' Applicaties May 16, isssg’se?i'al No, _203,321` -5 claimed (c1. lofaèzaa) f " This> invention’relates _to improvements in the , y 'ing water from a gaswell the pressure of gas on , method of ‘ejecting- seep'age water/'from natural the surface water up of the thevvaterpipe in the If the wellpressure' ytends tolsforce not»" , gas wells `and 'an automa'ti'c'apparatus therefor. 1 Natural gas'wells,`notwithstanding all known precautions such' as well casings, are usually en-k croachedV by"a"_considerable quantity of water which gradually seeps in fromcthe water bearingr sand which is mostlyencountered above -the gas sufilcient to force the water> to the surface of the well when' pipe C is 'valvularly opened `at thewellï «5. head, the water will surge‘beyond the level where the weight> of column of waterin pipe C and pres' sure forcing water up piper CA are equal and there sand, untilr it rises t'othepoint where itI interferes 'after the water in’pipe C will recede and‘equaliae '10 with the flow of,_ gas to the surface,'whereupon the gas flow- must be closed off and the water unless such recession' is‘checked. then transferred wholly to the water surface'.4 ' vof', lthe'wa'ter sand.r _It‘has walls'N' of internally N l0 l ` ",Inits _presèntqemb'odim'ent vthe invention conf/> syphoned tothe surface through a' pipe provided sists of a tubular devicey indicated in general by N for the purpose, by means of the gas Vpressure and situated in the water pipe C above th'e‘level i5. In man3/,instances the volume ,of'water> becomes - too greatlfor the v.normal pressure of the' gas to eject it to thesurface and in consequence either the¿wel1'is abandoned or thefwater mu‘stjbe pumped to the surface vat 'great expense -and coni` 20 siderable loss of time. `-In facton many occasions it is more economical to abandonïthe well than " to attempt water- evacuation. The principal object- ofy this invention isïtoçprof vide an improved apparatus yand process»4 for re y25 moving._'collectedjll‘water from the bottom of< a gas well, the apparatus and process being such ‘ that 'the pressure of'thevgas in’l thjewell forms the increased 'thlckne'ssÍclose to its endsy which: are’ 1'5» internally pipe threadedv at lN2 for thej’reception l v of theconforming externally threaded‘ends of the , ` ’ contiguous pipe sections between which i'tîis inter-¿_ posed foruse.r4 , ' ' v-z ' i f lSlidingly arranged'in the cylindrical lowerrnost- 20 end ofjthe tube _N is'a'hollów'piston or `plunger ' having an upwardly extending skIrtII).> In" the piston head >ID'is an automatic'valve‘, preferably ofthe ball` type, the ballbeinß indicated by I I and its seat'in the plstonfhead by I2`._ , It willfbe 25 seen.that,__this valvewill act yto permit upward> flow and to prevent down orreturnflow. ' _It'will be observed also that'upon movement‘ofthe pis# A second important Objectis to provide an ap@ ton to'ïb'ottom dead centerits frustro-conical or' sole means fore expelling, collected waterf Y, f , paratus >of the class speciiìed which will be sim-` truncated head will seat upon thefshoulder _Il 30 ple, durable,.feñlcient, and inexpensive to’proyduce formed' by the 'reduced internal4v diameter of the -andto install.’ g , > ~ l i _», j . With the above and >otherfobjects in viewas will 35 beghereinafte‘r general of certain apparent, novel the detailsof inventionconstruction consists , and» combinations , of parts hereinafter , fully de, lscribed, illustrated in the accompanying drawing and specifically claimed. l , , „ ,y . Figure v1 is a diagrammatic section of a char 40 acteristic ‘gas well showing atypical position , thereinlof the invention when used; and, >Figure 2 is an elevation in median section of theapparatus constructed in accordance with thisv . invention. In the figure showing la gas well, A indicates tubeand‘when `thus, seated “will valvularly close - ' ’ the .tube against leakage between the piston' and . Journalledin theskirt'of the piston is alwrist 35 pin.|4 upwardly from kwhichxextends a rod".I » Well above theV piston this -rod passes through fa , sleeve’IB'. which dependscoaxially of Ithe‘tube from a bracket I1 extending'inward'ly from the tube wall.' The bracket has a passage It leading 40 from outside the tube` to inside said sleeve. ~ , " The upper end ofthe rod, Il'terminates in a head `I9 the -,diameter of `which conforms to the internaljdiameter of the sleeve, and when the piston and frodfare at upper dead centerthe head 45 y `the well shaft; Byth'e gas` tubing; C, the water I9fcloses ther passagelß. `The' h'ead'fivl!" is pro pipe; D, the rubber packer; E, the water intake ' yided with a conical tip’20 adapted to seat ragainst ' port; F, the ground surface; G, the usual top soil; the shoulder 2i 'formed'at the mouth of the sleeve H, rock; J, slate; K, water sand; L, second strata >by reducing the internal diameter thereof, there 50 of slate; and M, the gas sand. ,Introduced in by constituting a needle valve to close the core of ‘ 50 the water pipe is the apparatus constituting the the sleeve from the tube._ The lower end of the sleeve is permanently , subject vmatterwof this invention and which is in'-= ' dicated in general by N in Figure 1 and shown . closed by meansl of a plug 22 which is cored In separately in sectional detailin Figure 2. y 55 First it should be understood> that in evacuat conformity to the rod I5 and also serves as a guide therefor.y Sealing the sleeve is a packing 55' 2,136,229 2 ring 23 surmounted by apacking retaining washer 2l which further serves as seat for a helical spring 25 which expands against the shoulder of the rod head i9 for normal closure retainance oi.' that valve. In operation, the valve B' is closed thus build ing up gas pressure in the well. The water pipe C, in which the tube N is inserted, is then opened by opening valve C', thus releasing pressure at 10 the head of pipe C. The water in well bottom is then forced up the pipe C and through the tube N, with such velocity that the water will surge above the normal level that the gas pressure will hold, whereupon the s returning surge of water in pipe C automatically closes ball valve and di vides the column oi water. Coincident with clo sure of the ball valve the weight of the upper part of the column of water falls upon the piston, forcing piston to the lower end of its movement, 20 thereby opening needle valve for the admission of gas into water pipe C, under the upper column of water, whereupon the> upper column of water is then forced up the pipe C and ejected at the well head. Upon the reduction of the weight of the ,upper column on the piston the needle valve assisted by the spring will close and shut on? the gas,at this point, allowing water in well . bottom to be forced through tube N, up portion of kpipe C previously evacuated. Thus the cycle 30 is repeated again and again until evacuation is inlet, a tubular guide extending downwardly in said casing, a valve stem carrying said lvalve and having its lower end projecting downwardly from the guide and connected to said piston, and a spring in said tubular guide urging said valve Ul _to closed position. . 3. In a device of the kind described, a casing arranged for interposition in the water flow line of a gas well, a tubular piston slidably mounted in _the lower part oi said casing and having an upwardly facing valve seat at its lower end, a ball valve normally resting on said seat, a gas inlet at the upper part of the casing añording communication from the exterior to the interior `ofthe casing, a valve normally closing said gas inlet and movable downwardly in the casing to open the inlet, a tubular guide extending down wardly in said casing, a valve stem carrying said valve and having its lower end projecting> down wardly from the guide, a cross member extend 20 ing across the upper part of said piston and sup ported in the piston wall, means connecting said valve stern and cross member, and -a spring in said »tubular guide urging said valve to closed position. - -4. In a device of the kind described, a casing arranged for interposition in the water flow line of a gas well, a tubular piston mounted in the lower part of said casing, an upwardly opening check valve at the lower end of said piston, a gas inlet at the upper part oi the casing afford ing communication from the exterior to the in terior of the casing, a valve normally closing said gas inlet and movable downwardly to open purpose speciñed. . It is obvious that minor changes may be made the inlet, a tubular guide extending downwardly 35 in the form and construction of the invention in said casing and having an open lower end, a tubular closure iitted in the lower end of said without departing from the material spirit there a valve stem carrying said valve and slid of. It is not, therefore, desired to conñne the guide, ably iitting said closure, means connecting 'the invention to the exact form herein shown and described, but it is desired to include all such as lower end oi the valve stem to the piston, and 40 40 properly come within the scope claimed.l ' a spring in said tubular guide between said clo sure and the last mentioned valve. We claim: 5. In a device of the kind described, a casing 1. `A tubular body for insertion in a pipe line, an internal valve seat in said body, a piston including varranged for connection in'the water flow line a skirt and a frustro-conical piston head having of a gas well, a tubular piston slidably mounted an axial opening, said head being adapted for in the lower part oi said casing and having an inverted frusto-conical bottom providing a cen engagement with said seat, a ball movably con trally disposed opening, said bottom forming a ` iined within the skirt and adapted for engage ment with the rim of said opening, a piston rod valve seat, a ball valve normally seating on said bottom, a gas inlet at the upper part of the cas 50 associated with the piston, means in the oppo ing affording communication from the exterior to 50 site end of the tubular body establishing com. the interior of the casing, said gas inlet having a munication through the body wall, and a shut horizontal leg extending radially inthe casing of! valve carried Vby the piston rod and asso c_iated with said means’and controlled by the and avertical leg vopening upwardly from the movement of the piston to close said means when inner end of the horizontal leg, a tubular guide 55 the piston is in one position and to open said extending downwardly from the lower side of said horizontal leg in alinement with the vertical leg, means when the piston is in another position. 2. In a. device oi' the kind described, a casing a gas valve located at the junction of the hori arranged for vertically positioning in a well, a zontal and vertical legs of the inlet and normally tubular piston slidably mounted in the lower part closing said inlet, said valve being slidable down 60. 60 ~offsaid casing, and upwardly opening check valve wardly in said guide, a valve stem connecting at the lower end of said piston, a gas inlet at the said pistón and said gas valve, and a spring urg ing said gas valve to closed position. » „_ upper» part of the casing affording communica tion from the exterior to the interior oi the cas GEORGE JUDSON BALDWIN. ing, a valve normally closing said gas inlet and complete. ' Y' ' There has thus been provided a. simple and efiicient device of the kind described and Ior the -65 movable _downwardly in the casing to open the GEORGE WESLEY ADDY.