US1512500A - Pumping equipment - Google Patents

Description

ocx. 21 1924.` Lzoo J. B. SWARTZ PUMPING/ EQUIPMENT Filed Nov. 12, 1923 IN V EN TOR 7J/155.3 6109/? rz v A TTozgNE Ys WITNEssEs- Patented ct. 21, 1924.

UNITED STATES PATENT OFFICE.

PUMPING EQUIPMENT.

Application filed November 12, 1923. Serial No. 674,236.

To all whom it may con-cera.'

Be it known that I, JAMES B. SwARTz, a citizen of the United States, and resident of Wichita, in the county of Sedgwick and State of Kansas, have invented certain new and useful Improvements in Pumping Equipments, of which the following is a specification.

This invention relates to Vpumps especially adapted for use in wells.

Brieiy stated an important object of this invention is to provide a pumping 'equipment in which the-down stroke of the pump is utilized-to lift a column of oil and in which the plunger is required to lift only a portion of the oil on its upstroke.

A further object is to provide a pumping equipment which may be quickly withdrawn from the well for the purpose of replacement or repair.

A further object is to provide a pumping equipment of the character specified in which a wire cable may be employed as well as theusual sucker rods, thereby enabling the plunger and associated elements to be quickly withdrawn from the well when necessary.

A further object is to provide a pumping equipment which is simple to operate, durable in use and cheap to manufacture.

Other objects and advantages will be apparent during the course of the following description.

In the accompanying drawing forming a part o-f this application and in which like numerals are employed to designate like parts throughout the same,

F ifgure 1 is a vertical sectional view through the upper portion of the improved equipment.

Figure 2 is a vertical sectional view through the lower portion of the improved pumping mechanism.

Figure 3 is a horizontal sectional view taken on line 3-3 of Figure 1.

In the drawing wherein for the purpose of illustration is shown a preferred embodiment of the invention, the numeral 5 designates the tubing having a reducer 6 intermediate its ends to define a lower tubing 7 of a reduced diameter.

However, the tubing 7 is substantially longer than the upper tubing 5 and has a greater capacity than that portion of the tubing above the reducer 6, the purpose of which will be fully described.

A plunger 8 is located at the lower portion that the wire lines or cables 4 and 9 take the place of the usual sucker rod employed for reciprocating the plunger.

It might be said that the tubing is provided with a lower pump chamber 7 above which a working barrel or pumping chamber 10 is located.

On the upstroke of the plunger 8 the Huid above the same is directed through the ports 12 in what might be said to be a standing valve 13 having one-way valves 14 enclosed within cages 15. The fluid which enters the working barrel chamber 10 is prevented from returning to the lower portion of the tubing by the spherical valve 13.

On the downward stroke of the polished rod or what might be said to be the piston rod 9 a piston 15 arranged within the barrel 10 is lowered so as to force the oil previously introduced into the chamber up through a plurality of liquid conveying conduits 16.

The piston 15 is securely connected to the piston rod 9 by any suitable means so that when the rod is reciprocated the piston also will be reciprocated. Furthermore, the piston 15 is provided with openings to receive the tubes 16 which remain stationary during the opera-tion of the pump.

Figure 1 illustrates that the upper portions of the tubes 16 are securely connected to van upper stationary valve 18 having one* way valves 19 by means of which thepumped fluid is allowed to pass into the u per portion of the tubing and is prevente from returning through the lower portion of the tubing.

Attention is directed to the fact that the polished rod or piston rod 9 is provided with annular shoulders 2O and 21 which on the down stroke of the piston rod engage the stationary valves 18 and 13 and thereby firmly anchor the same. The upper fixed valve 18 rests upon shoulders or a single annular shoulder 23 formed on the inner side of the tubing. As previously stated the lower stationary valve 13 is wedged in the tapered reducer 6. f

The valves 13 and 18 consist of alternate layers of steel and leather or other suitable material and the leather or its equivalent extends beyond the periphery of the steel 7 of the tubing and has connection with a or equivalent layers of the valve so as to have awliqui'd tight engagement With the tubing.

In operation the-down stroke of the plunger 8 results in the elevation orunseating of the valve 26 carried thereby so that a quantity of oil may pass through the plunger. On the upstroke of the plunger the oil within the tubing 7 is lifted through the fixed valve 13 and is introduced into 'the chamber 10. .On .the ldown stroke of the plunger the piston 15 also moves downwardly and forces the oil in the chamber 10 up through the tubes 16 and into the upper portion ofthe tubing. It will be seen that the down stroke of the pump is utilized to elevate a. quantity of the oil and at no time is the column of oil supported solely by the Wire line or cable and consequently the ivire line is Vnot unduly strained.

Attention is directed to the fact that the Weight Vof the column of oil in the tubing Vbelovv the stationary valve is when combined With the Weight of the plunger, the line 4 and the line 10 greater than the column of oil in the upper portion of the well so that the Weight of the oil and said movable parts is utilized to pump the oil up through the tubes 16.

By the use of this invention the movableI parts such as the plunger S may be quickly removed for replacement in case the same become worn or are broken.

Having thus described the invention, what is claimed is A pump for use in ivells comprising a barrel, a stationary valve body positioned in the barrel and having a plurality7 of one- Way valves, pipes rigidly secured to said valve body and depending therefrom. said pipes being adapted to conifey liquid upwardly past said one-Way valves, a piston in said barrel and lnwing openings receiving said depending pipes, and a )iston rod connected to said piston and lieing movable through said valve body, said piston being provided with a shoulder to bump against said valve body to firmly seat the same.

JAMES BENJAMIN SWARTZ.

Images