US1896719A - Pump barrel and plunger - Google Patents

Description

Feb. 7, 1933. H. w. PARKIN PUMP BARREL AND PLUNGER y Filed July 5, 1928 v nvantoz: 192mg MZ Pnoz,

amm/1115.

Patented Feb. 7, 1933 UNITED sTATr-:s

PATENT oFFlcEf'ff NEVADA Application med J'uly 5,

This invention relates to pumping barrels, and more particularly to a novel arrangement wherein a plunger may operate within a working barrel in such a manner that a tight fluid seal exists between the barrel and which system and means so functions as to allow the same to be readily the well.

@ther objects of the invention will appear as the specification proceeds, as well as different uses and embodiments of the invention not specifically set forth, and which embodiments are contemplated, and with the above named and other objects in view, the invention consists in the .novel and useful provicleaned within t sion, formation, constuction, association, and

relative arrangement of parts, members, and features, all as shown in a certain embodiment in the accompanying drawing, described generally, and more particularly pointed out 1n the claim. p

.In the drawing: Figure 1 is a longitudinal sectional view of the invention, c

' Figui-e1 is a longitudinal sectional view of a standing valve, sue-h view forming a continuation of Figure 1, n

Figure 2 is a cross-sectlonal view on the line 2-2 of Figure 1, i Figure 3 is an enlarged detail sectlonal view ol ya portion of the invention, and

Figures l `and are elevations of members of the inventiom Referring now with particularlty to the drawing, the improved inventlon is designated as an entirety by A, and the same includes means aV adapted to be received within a barrel l) and tov cooperate with said barrel; means c cooperating with a plunger d, all of rm maar. AND PLUNGEB HENRY W. PARKIN, 0F LOS ANGELES, CALIFORNIA, ASIGNOB, IB'Y DIRECT ANDIEBNE ASSIGNMENTS, TO OIL FIELD APPLIANCE COMPANY,

LTD., A couronner or 1928L, Serial No. 890,298.

which elements may be used in practicing one embodiment of the invention. In particular the said means a illustrated in Figure 5 comprises a member formed with a conical bore 1 and a uniformly curved outer surface 2. Means c is ring like information, and provided with a uniform central bore 3, and the outer surface 4 is inclined or conical in form. In the present instance, the taper or bore 1 of the means a has ,the same slant or angle of slant as the outer surface of the means c. For convenience of descri tion, the means a will be hereinafter termed) a liner ring, and the means c 'a plunger ring. The liner rings are itted'withln the barrel b, and one or more thereof, as shown at 5, may occupy a selected zone within said barrel. Within said zone 5 are live of said rings and'said rings are held in position within the barrel liners 6'. In the have provided groups of ner rings at other zones of said barrel, as shown at 7 and 8, with said groups separated by liners 6. Said rings are arranged one upon the other in such a manner that the borel 1 thereof converges upwardly, as shown in Figure 1. The lowermost liner 6 is held in position by means of the coupling 9, which lis screw-threaded at the lower end of the barrel b, it being noted that the coupling is provided with the usual internal flange 10 to accommodate ends of said liner an the barrel.. The upper end of the barrel likewise secures the cou lin 11 which accommodates the upper end ofpthearrel and the topmost barrel liner, the relation being such that when the couplings are in position the liners closely hold the several oups of llner rings toget er. The plunger rings c are u on the periphery of the plunger d and as in t e case of the liner rin Said plunger ringsare likewise arrangedsin groups at different zones of said plunger, as shown at 12 and 13, and which plun er ring groups are separated by sleeves 14. ghe said plunger is shouldered at 15 to accommodatefor the lowermost plunger ring in zone 12 and said plunger is internally screw-threaded at 16 to accommodate the bottom valve c. rIhis bottom valve vis conventional in form, includin the usual crown 17, ball 18, seat 19 ffor accombarrel by means ofl present instance, I

gicov modating the ball, and nut 20, all of which members aforesaid are held in working relation, as shown. A top working valve f 1s provided which is secured to the uppermost end of the plunger and the same includes the usual crown 21, seat 22, and ball 23 cooperating with the seat. The uppermost sleeve 14 and the plunger are screw-threaded together at 24 and the sleeves 14 are so arranged as to hold the several plunger rings in close cooperative arrangement upon the plunger. The coupling 9 is adapted to secure the tube 25, which tube in turn carries a seat coupling 26, which seat coupling is adapted to secure the standing valve g. The standing valve is conventional in form and is similar to the valves e and f. Pump rods L. are secured to the crown 21 of the valve f. It will be noted upon reference to Figures 1 and 3 that the Aplunger which will include its .associated mem ers c, has moved within the barrel and its associated members a to a position where the zone 12 of the members c and the zone 5 of the members a are insubstantially side by side relation with the top and bottom surfaces thereof in alignment. The space included between each cooperating member a and c is annular in nature and presents a greater space area at one end than adjacent the opposite end or what would be the apex, it being noted that this space would approximate an isoceles triangle, considering a cross section of the device as shown in the figures. The group of the rings c in the zone 13 are in zigzag or staggered relation with respect to the group of rings a shown in zone 7. This relation just described is shown in enlarged cross section in Figure 3. It is thus evident that when the plunger is in movement with- 1n the barrel that the open area that might exist between the'imembers a and c increases and diminishes. It is evident upon reference to Figure 3 that the areas indicated at 27 and 28 are substantiallyr equal and further that as the plunger moves upwardly that portion 27 would diminish as to area, whereas the area 28 would increase and include that portion which was formerly 27. It is not intended by the above to`ndicate that there would ever be any variation in area between the members a and c because the area would at all times remain the same.

The operation, uses and advantages of the invention, although previously set out in the preamble, contemplate further a type of pump which is so constructed as to work well within formations that generally stop operation of a plunger after a certain period of use. The present invention will operate efficlently under most unfavorable conditions. IVhen the device shown in Figure 1 is operating within oil sand, it is evident that the interior of the plunger will be filled with oil and that this plunger must operate within the 011. Oil will, of course, be received in the space included between the plunger and the barrel liner and a part of this oil will be received between the means a and c. When the lowermost zone 12 of the plunger ring c moves below the zone 5, oil may be received within the space between said rings and when the plunger commences its upstroke, the oil thus trapped is in a measure conveyed by the rings c upwardly and as a consequence the means a and c act as a pump for pumping oil upwardly within the oil tubing to the surface of the well. This arrangement will act both alone and in cooperation with the standing valve g and the lower and upper working valves e and f respectively. It is evident that the relation that exists between the means a and c is such as to at all times aid in the lifting of oil or other liquids which are received between the sleeve and the barrel. Furthermore, the relation betwecn the means a and 0 is such as to prevent an effective seal against movement of oil in a downward direction, assuming the parts in the relation and position shown in Figure 1.

The device just described is so formed and arranged with respect to the rings utilized that there is no `working surface contact between said rings. However, the arrangement is such that the plunger may operate within the barrel in oil affiliated with sand, tar oils, and all low gravity oils without impairment of operation.

In connection with sand, it is a known fact that when a pump is what is called sanded up, it becomes necessary to pull the pump and wash it and at the same time the sand must be washed from the well, and if there is an over amount of sand, it is necessary to work the sand out before a plain barrel pump can be put back into operation. However, when sand is encountered with a pump of my design, the so-callcd saw-toothed surface or corrugated appearance presented by the different zones of liner rings and plunger rings, which corrugations it will be noted present right angled surfaces, these right angled surfaces function as conveyors and convey the sand upwardly during the stroke of the plunger. lVhen the plunger returns within the barrel, the sand is sheared from the plunger by the right angled surfaces of the rings in the barrel. Results have shown by actual test that a pump constructed in accordance with this invention will etliciently pump a 7 O70 sand afiiliated with oil, and when the well has been relieved of the Sand, the working barrel and plunger automatically cleans, due to discharge of liquid between the liner rings and plunger rings.

In arranging the different zones of liner rings and plunger rings, I have preferably so arranged the zones that when one zone is 1n registration, for instance'the zones 5 and 12, as shown in Figure 1` that other zones for instance the zones 7 and 13 are out of registration. This means that the right angled surfaces do not lie in .the same plane except in one zone. This arrangementis necessary in order that the liquid lock should not be so great as to impair the operation ofthe lunger within the barrel. Ihe lifting of t e liquid,`\whatever its nature, is executed by 1ifting the plunger which primes the barrel with the liquid and is locked by the foot valve and when the plunger is dropped, forms a pressure on the liquid which passes through the interior ofthe barrel and up between the corrugated surfaces and as these corrugated surfaces at different intervals increase and decrease the area existing therebetween in Cer tain stages ofthe downward movement of the plunger Within the barrel. rllhe liquid has ample room to pass between the corrugations at a rapid rate due to the long angled surfaces the plunger and interiorly contemplated by the periphery of the plunger rings and the inner surfaces of the liner rings, it being evident that there are no abrupt surlaces, namely, the right angled surfaces, when the plunger is moving downwardly within the barrel. inasmuch as the barrel is primed, there will be oil both exteriorly ont of the plun er and when the plunger makes its upstroA e, the right angled surfaces which exist between the rings, act to convey the liquid up the long taper or tapered surface oit' the rings, anon ing the liquid to the top ot the barrel. The liquid is, of course, prevented 'trom dowin backward due to 'the liquid seal that wo exist at certain zones during the upward movement of the plunger, it being evident that as the liquid is lifted, the space there behind is sealed, due to registration between the liner rings and plunger rings at Zones below the zone ot litt.

l claim:

A pump comprising a barrel, a plurality of superposed rings in the barrel forming cor rugations therein, means securing said rin in the barrel, a plunger, a plurality ot super posed rings on the plunger whereby the outer surface of the plunger is corrugated, and means to secure said last named rings on the plunger, a check valve on the top of said plunger, and a second check valve on the bot tom of the plunger.

ln testimony whereof, l havel signed my name to this speciication at Los geles California, this 15th day of June 1928.

HENRY PAR.,

Images