US2035326A - Oil well cup saver - Google Patents

Description

ATTORNEY 6 em a a 5 a- 3 2 A 1 .I n M 2 51 1111.11w1.1m: m1w1 111111113 1 wn w y M L m 1: 1 u n n; I .m J IIIZ 4 F A w 11:: f, 1 :1 1

Patented Mar. 24, 1936 UNITED STATES PATENT OFFICE 1 Claim.

This invention relates to deep well pumps and more particularly to a device for increasing the life of the pump cups and similar moving parts of the pump, and has for the primary object the 5 provision of means whereby the movements of the pump sucker construction and sections of the pump tubing will not agitate the sand and other sediments of the well permitting the latter to remain undisturbed at the bottom of the well so 10 as not to rise with the fluid and come in contact with the cups and other moving parts thus eliminating cutting or wearing of the parts by the sand and like sediment.

With these and other objects in View this in- 15 vention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter more fully described and claimed.

For a complete understanding of my invention,

reference is to be had to the following description and accompanying drawing, in which The figure is a fragmentary vertical sectional view showing a pump located in a well with my invention applied thereto.

25 Referring in detail to the drawing, the numeral l indicates a well and 2 the pump tubing which in this instance includes a pair of sections, one of which is of comparatively short length and rests upon the bottom of the well and has a series 30 of perforations 3 to admit the liquid of the well to the interior thereof. The other or uppermost section ext-ends from the surface of the well downwardly into the latter and is spaced from the upper end of the lowermost section and has 35 reciprocally mounted therein a sucker construction 4 including the usual cups 5 contacting with the walls of the uppermost section of the tubing and the latter-named section has a standing or check valve 6 and the lower end is exteriorly 40 screw threaded to have threaded thereon a collar 1. The upper end of the lowermost section is also exteriorly screw threaded to receive an internally screw threaded collar 8. The collars I and 8 are employed for connecting my invention 45 to the sections of the tubing and consists of a pipe or tube 9 which is threaded in the bore of a head Ill. The round head ID has exterior threads to be engaged by the interior threads of the collar 1', and the said collar is also threaded on the 50 lower end of the tubing section 2, and forces the head [0 against and rigidly associates the same with the said tubing section 2. The pipe or tube 9 enters the lower section of the pump tubing and has threaded to its lowermost end a stop collar ll. Resting on the top of the lower tube section there is a round head l2, substantially similar to the head Ill. The head In has a smooth bore through which the pipe 9 freely passes. The exterior threads of the head ID are engaged by 5 the sleeve 8 which is also screwed on the outer end of the lower tube section. The head l2 may be provided with suitable packing between itself and the tube 9 and the latter places the upper section of the pump tubing in which the sucker 10 construction reciprocates in communication with the lower pump section so that the liquid therein may be drawn up and discharged from the well by way of the upper pump tube section during the reciprocation of the sucker construction and during the reciprocation of the latter the uppermost section of the pump tubing moves upwardly and downwardly which movement is interrupted or not transmitted to the lower section due to the slidable connection between the tube 9 and the head l2, consequently these movements will be prevented from agitating the sediment at the bottom of the well which lies between the walls of the well and the exterior face of the lowermost well tube section below the perforations 3. Thus it will be seen that the liquid entering the lowermost section of the well tubing will be free of sediment and thereby eliminate the possibility of the sediment rising and contacting with the sucker construction 4 and valve 6, permitting these parts to successfully operate over a long period of time.

section is perforated and the upper section has a standing valve and a reciprocatory plunger; of a pipe member between said sections, a round threaded head having a bore in which the upper end of the pipe is threaded an interiorly threaded collar engaging the head and the threads of the upper tube section for holding the head thereagainst, a round exteriorly threaded head resting on the upper end of the lower tube section and having a round bore which receives the pipe therethrough, an interiorly threaded collar screwed on said head and said lower tube section for holding the head on said section, and a stop element removably screwed on the end of the pipe received in the lower tube section.

GUY A. MAHANEY.

Images