Патент USA US2405697код для вставки
Aug. 13, 1946. lll. G. HousToN ETAL OIL WELL SAND PUMP 2,405,697 V I Filed Dec. 22, 1944 4Fi7z„.fzMfz_a.T,/5“âmáv / 7 f. . . .5. l. INVENTORÃ G. Hoc/'.5 ‘ro/V and Patented Aug. 13, 1946 2,405,697 UNITED STATES PATENT -OFFIC'E .2,405,697 OIL WELL SAND PUMP Howard G. Houston and John B. Humphrey, Inglewood, Calif. Application December 22, 1944, Serial No. 569,357 15 -Clalì-mé. (Cl. lr03-»204) 2 This invention relates in general to oil Well pumps but more particularly to means coopera tively mountedin a well with respect to> a con ventional pump and Valves for controlling the flow of oil from the well to the surface, and an object is to provide means for introducing a huid into the bottom or standing valve section of the pump barrel for the purpose of iiushing and washing the standing valve and its seat at pump to which our improvements are applied for use; . Fig. 2 is -a sectional elevation on an enlarged scale showing a portion of a typical pump, top plunger valve, and our improvements coopera tively connected with the plunger and top valve; Fig. 3 is a cross sectional View on line 3_3 of Fig. 2; and Figs. 4 and 5 are, respectively, cross sectional least once in each pumping operation, whereby 10 views on vlines fir-'ci and 5--5 of Fig. l. accumulations of sand around the standing valve Fig. 1 shows a casing C in which the usual may be prevented and the pump may operate pump barrel B is suspended and is attached at continuously over long periods of time without its lower end, as by means of a collar I to a pulling and removing the standing valve, as is usual perforated anchor pipe 2. A plunger P necessary by the use of prevailing methods and 15 is reciprocally mounted in barrel B and carries apparatus. a top valve T, while barrel B supports a stand ` It is well known in the oil industry that too ing valve S. Valve S has an anchor ñXture '2a frequent sanding up of the standing valve and, formed of a split extension 3 having enlargements pump barrel occurs in the operation of oil wells, 4 on its lower end which, when positioned prop and such conditions require stoppage of pump v20 erly, underlie an annular portion of a fixture ing operations while the barrel is completely scavenged and cleared of the accumulated sand, etc. Heretofore the barrel scavenging and clear 6 but are compressible so as to permit the re moval of valve S and associa-ted yparts from the barrel when necessary. ing operations have been accomplished by first Valve S is carried in a cage 'l and has a seat withdrawing the standing valve and then intro 25 8 on the upper end of anchor 2. A Valve vlift rod ducing, through the medium of an emergency 9 is usually ñxed vto the valve S (Fig. l) and has pipe, a solution to the pump barrel. 'Our Ipump, a T head at its upper> end arranged to be gripped however, is arranged for introducing a volume by a suitable tool for the purpose of withdraw ing the standing valve assembly from the well. of water or other washing solution to the pump barrel at points in the vicinity of the standing 30 Thus oil from a subterranean reservoir enters pipe 2 through peripheral perforations 2b, and valve on each down stroke of the plunger and, upon each up-stroke of plunger P rises through hence, at frequent and regularly -timed intervals so as to prevent any undue accumulation of sand a central passage of anchor 2a, valve seat 8 and peripheral ports I0 in cage 1, and thence into in the barrel. The wash solution is fed by suit able means above the surface of the ground .35 the interior I I of barrel B. Cage l has a een through the barrel and through the top plunger vtral boss I2 in which the rocl`9 is threaded for withdrawing the cage when necessary. Valve, and our invention comprehends the pro It will be noted that plunger P is 4of tubular visions of means embodied in the pump barrel form and the portion thereof below the top valve and plunger for directing the iio-w of the solu tion to desired points of usefulness and notwith 40 T is substantially extended downwardly in the direction of the standing valve S. standing the presence of certain necessary fea Now, referring particularly to Fig. 2, we will tures requisite for said purpose, to provide for describe the connections between the ton kvalve the ñow of oil into and from the pump, as .in T and our wash fluid supply means. Plunger well known oil well pumps. 45 P has an elongated skirt I3, formed of one or Other and more detailed objects of our inven more connected sections and Yhaving a clear in tion will appear as the hereinafter following ternal passage I4 extending therethrough for the description of our improvements progresses. flow of oil upwardly as the pump operates. We have shown a preferred form of our ap- I An uppermost section I3 of the plunger stem paratus in the accompanying drawing, subject 50 may be, as shown, threadedly attached, as at I5, to modification, within the scope of the appended to a cage I6 arranged to support the topI valve claims. In said drawing: Fig. l is a fragmentary sectional elevation of an oil well,- showing a typical Well structure and 55 T, and an intermediate kValve seat Ymember 'Il may' be conñned between the stem I3 and cage I6 so as to alïord free opening and closing of the Valve while it is held 'against displacement 2,405,697 3 4 We claim: from its cage I6. The peripheries of stem I3 and 1. An oil well pump comprising: a barrel, a plunger reciprocable therein, a valve on said plunger for regulating the out flow of oil from the well, and means for injecting a desanding B must rise and flow through the control pas fluid through said valve to points in the barrel , sage I8 at the top of stem I3,` a passage I9 in below said valve. member I'I, and thence through radial passages 2i) 2. An oil well pump comprising: a barrel, a in cage I6 into the barrel B when valve T is open plunger reciprocable therein, a valve on said to permit flow of oil, as on a downward stroke of the plunger. It will be observed that valve 10 plunger for regulating the out flow of oil from the well, and means for injecting a desanding T is urged into closed position by a spring 2| iiuid through said valve to points in the barrel which is compressed between the valve and an below said valve, said means including tubular end portion 22 of a packing gland G which is connections with said valve and a surface source threaded into the upper end of cage IB. The body portion 23 is of less diameter than the bore of 15 of fluid, and means for closing said connections against the flow of a ñuid downwardly there barrel B so that oil may flow around the gland. through, except on an up-stroke of the plunger. ` Gland G is attached to the lower end of a hollow . 3. An oil well pump comprising: a casing, a pump rod R, which is threaded at 24 into the pump barrel suspended therein, a standing valve gland and carries an internal abutment 25 with at the bottom of the barrel, a plunger reciprocable a central aperture 25, thereby affording com in the barrel relative to the standing valve for munication between the interior of the pump rod cage I6 are of such diameters that they will oor respondingly and slidably engage the bore of barrel B. Thus, oil from the lower end of barrel and a chamber 21 in the gland, a washing or inducing a transfer of oil from the well to a flushing fluid being introduced through the pump position above the standing valve upon each up stroke of the plunger, a valve carried by and oper 25 able upon each down-stroke of the plunger and rod and gland to the lowermost areas of the bar rel, in the manner hereinafter described. ' Valve T has an upwardly extended tube F and said upper end which, when valve T is seated, as closable on each up-stroke thereof for lifting successive volumes of oil on alternate cycles oi the pump, a pump rod for operatively support ing the plunger, and means connected with the pump rod and the plunger valve for introducing a desanding fluid to the barrel through .the plunger valve at each up-stroke of the plunger. 4. An oil wellpump comprising: a casing, a in Fig. l, are closed by packing rings 3 I, but when pump barrel suspended therein, a standing valve a downwardly extended tube F’ coaxially con nected therewith and a passage 2,8 therein which affords communication between rod R and the interior of plunger P and barrel B at times. Tube F is closed, as at 29, at its upper end but has peripheral perforations 3D formed slightly below said valve is raised to open position, will be open 35 at the bottom of the barrel, a plunger recipro cable in the barrel relative to the standing valve so that ñuid may flow downwardly from rod R for inducing a transfer of oil from the well to a through tube F, valve T and tube F'. A washer position above the standing valve upon each up 32 is provided above the packing rings 3| between stroke of the plunger, a valve carried by and oper which and abutment 25 a spring 33 is compressed able upon each down-stroke thereof for lifting for applying pressure to the packing rings. .49 successive volumes of oil on alternate cycles of Thus, _it will be understood that a washing ñuid the pump, a pump rod for operatively support can flow downwardly into the pump `barrel only ingthe plunger, and means connected with the when valve T is raised from its seat for permit pump rod and the plunger valve for introducing ting the flow of oil upwardly around the valve. a desanding iiuid to the barrel through the Of course, it is obvious that valve T only opens on ( plunger valve at eachup-stroke of the plunger, the down-stroke of plunger P-v-hence, the wash- ` said desanding means including a tubular connec ing ñuid only ñows into the barrel at such times. tion extended upwardly and downwardly from The operation of the pump is conventional eX and through the plunger valve and coaxially dis cept as to the intermittently timed introduction posed relative to the plunger. " of the washing iluid. For instance, on each down 5. An oil Well pump comprising: a casing, a stroke of the plunger valve T is opened so as to pumpbarrel suspended therein, a standing valve' discharge ~oil from the space in the barrel be at the bottom of the barrel, a plunger reciprocable tween valves S and T, while on alternate up in the barrel relative to the standing valve for in strokes of the plunger the valve S will remain open ducing a transfer of oil from the well to a posi for recharging said space while valve T remains tion above the standing valve upon each up-stroke closed. As in other types of pumps, the plunger of the plunger, a valve carried by and operable can be readily withdrawn from the barrel and upon each down-stroke thereof for lifting suc access to and the removal of the standing valve cessive volumes of oil on alternate cycles of the S is readily effected by the application of a suit pump, a pump rod for operatively supporting the able tool to the head of the valve puller 3. ' plunger, and means connected with the pump rod It is obvious that liquid delivered from a source and the plunger valve for introducing a desand above the surface of the» ground through pump rod R, gland b1 and valve T is prevented from mingling with the oil output in barrel B above valve T. However, all liquid introduced into the ' barrel below valve T is evacuated with the oil` by the pump. , The essence of this invention is the provision of means for permanent. application to an oil well pump for iiushing and washing away the accumu lation of sand, etc., from the pump barrel and valves which tend to clog the operating parts, de crease production, incur unnecessary delays in op eration and extraordinary expense. ing iiuid to the barrel through the plunger'valve at each up-stroke of the plunger, said desanding means including a tubular connection extended upwardly and downwardly from and through the plunger valve and coaxially disposed relative to the plunger, and means intermediate the upper extremity of said tubular connection for -prevent ing the flow of a ñuid through' the plunger valve except upon the down-stroke of the plunger.: . . G. An oil well pump comprising: a barrelfa plunger reciprocable therein, `a valve on said plunger, a hollow pump rod, a packing gland 'con neoting said Pump rod and said gland,v and a tube 2,405,697 5 6 . extending through said valve for at times permit ting the flow of a fluid through said rod, said gland and said valve to the position of the barrel below the valve, said tube having means at its upper extremity for alternately opening and clos ing the tube to the flow of a fluid delivered through the pump rod as the plunger is recip-v rocated. 7. An oil well pump comprising: a casing, a pump barrel suspended therein, a plunger recip control thereof for introducing a washing liquid to the vicinity of the standing valve at regularly timed intervals during the operation of the pump. 12. An oil well pump comprising: a casing, a barrel suspended therein, a standing valve oper atively supported at the lower end of the barrel for regulating the flow of oil from the ‘well to the barrel, a valve carried by the »plunger for regulating the output of oil from the barrel and 10 means connected with said output valve and un rocable in the barrel and having a valve for regu der the control thereof for introducing a washing lating the flow of oil through the plunger, a hol low pump rod for operatively supporting the liquid to the vicinity of the standingV valve at reg ularly timed intervals during the operation of the plunger, and means for affording direct com» pump, said means including a passage through munication between the pump rod and that part 15 said plunger valve through which a liquid from a of the barrel below said valve on each alternate source thereabove is delivered to a portion of the stroke of the plunger for injecting a Washing barrel adjacent to the standing valve. liquid to the lower portion of the barrel. 13. An oil well pump comprising: a casing, a 8. An oil well pump comprising: a casing, a barrel suspended therein., a standing valve oper pump barrel suspended therein, a plunger recip 20 atively supported at the lower end of the barrel rocable in the barrel and having a valve for regu for regulating the flow of oil from the well to the lating the flow of oil through the plunger, a hol barrel, a valve carried by the plunger for regulat low pump rod for operatively supporting the ing the output of oil from the barrel and means plunger, and means for affording direct com connected with said output valve and under the munication between the pump rod and that part 25 control thereof for introducing a washing liquid of the barrel below said valve on each alternate to the vicinity of the standing valve at regularly stroke of theV plunger for injecting a washing timed intervals during the operation of the pump, liquid to the lower portion of the barrel, said a hollow pump rod for supporting the plunger, means including a passage through the plunger said means leading from the interior of the pump valve sealed against communication with' the out 30 rod to and through the plunger valve, and being let of the barrel. arranged to prevent communication of the de 9. An oil well pump comprising: a casing, a pump barrel suspended therein, a plunger recipn rocable in the barrel and having a valve for regu lating the flow of oil through the plunger, a hol low pump rod for operatively supporting the plunger, and means for affording direct com munication between the pump rod and that part of the barrel below said valve on each alternate livered liquid with the portion of the barrel above Y the plunger valve. 14. An oil well pump comprising: a barrel, a 35 plunger reciprocable therein, valve means in said barrel for controlling the output of the well, ahol low rod for operatively supporting said plunger, and means for introducing a iìuid from a source of supply on the surface through the pump rod stroke of the plunger for injecting a Washing 40 to the lower valved portion of the barrel at alter liquid to the lower portion of the barrel, said nate strokes of the plunger, said valve means in liquid injecting means being under control of the cluding a pair of spaced valves between which plunger valve. volumes of oil are held and exhausted upon each 10. An oil well pump comprising: a barrel, a` downstroke of the plunger, the uppermost of said plunger therein having a valve for regulating the 45 valves having a passage therethrough to permit ' output of the well, and means coaxial with Said the iioW of a liquid from said pump rod through valve and sealed against communication with the the valve on each downstroke of the plunger. output passage of the barrel for introducing a 15. An oil well pump comprising: a barrel, a liquid through the valve to the lower portion of plunger reciprocable therein, a valve on said 50 plunger for regulating the out flow of oil from the the' barrel at alternate strokes of the plunger. 11. An oil well pump comprising: a casing, a Well, and means for injecting a desanding fluid barrel suspended therein, a standing valve oper through said valve to points in the barrel below atively supported at the lower end of the barrel said valve, said means including a valve mech for regulating the flow of oil from the well to the anism to close the iiow of liuid during a part ci barrel, a valve carried by the plunger for regulat 55 the travel cycle of the plunger. ing the output of oil from the barrel and means HOWARD G. HOUSTON. connected with said output valve and under the VJOHN B. HUMPHREY.