US1667900A - Sand and fluid guide for oil-well equipment - Google Patents

Description

May 1, 192.3.

M. M. MUCKELRATH SAND AND FLUID GUIDE FOR OIL WELL EQUIPMENT Filed April 1927 Patented May 1, 1928.

UNITED STATES PATENT OFFICE. f

Mormon M. vMuo KELnATH, oE'E noEAno, AEKAnsAs, Assieivon 0E ONE-FOURTH To onos A. BALL, oNE-EoUETH'ro ORVILLE c. BEEBE, AND ONE-FOURTH TO JAMES R. ALBRITTAIN, LL or EL Do Ano, nKANsAs.

SAND Ann FLUID GUIDE FOR OIL-WELL. EQUIPMENT.

Application filed April 18, 1927. Serial No. 184,627.

This invention relates to equipment for pumping oil wells and more especially to a structure for use on the end of the sucker rod whereby, during the operation of the pump,sand will be kept away from the cups in the Working barrel.

It is a fact well known to those skilled in the art that in pumping equipment for oil wells the old style cups in the Working barrel are most desirable because they enable the pump to bring out more oil than is possible with any other device. However these old types of cups have been found objectionable because they are quickly cut up by the sand.

It is an object of the present invention to provide a means whereby injury to these cups by the sand is prevented.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of What is claimed, Without departin from the spirit of the invention.

In t e accompanying drawings, the preferred form of the invention has been shown.

In said drawings,

Figure 1 is an elevation of the structure constitutin the present invention, a portion of the tube eing broken away. i

Figure 2 is an enlarged longitudinal sec tion through a portion of the tube, the housing thereon, and the sand guide between the tu e and housing.

Figure 3 is a section on line 33, Figure 2.

Referring to the figures by characters of reference 1 designates a tube adapted to extend downwardly into the working barrel, not shown, and to be supported therein with sufficient clearance therearound to allow the fluid to flow upwardly along the outer side of the tube. The usual cage 2 with a ball 3 therein is connected to the upper end of the tube while another cage at having a ball 5 therein is connected to the lower end of the tube, said tube being attached to the standard travelling valve 6 provided with the standard cups and followers 7.

Mounted on the tube is a sleeve 8 the lower endof which is tapered as at 9 so as to seat on the upper endof the working barrel. The upper portion of this sleeve is re duced and exterior-1y screw threaded asat 10 where it is engaged by the interiorly screw threaded end of a tubular housing 11. This housing is spaced from the tube except at. its upper end where it is in sliding contact with the tube, and numerous apertures 12 extend through the housing. Arranged around the tube and within the housing in a frusto-conical sand guide 13 the lower p01 tion of which contacts with the lower por tion of the housing while the upper portion is spaced from the housing but contacts with the tube 1.

A coiled spring 14 is mounted on the tube 1 and bears at one end against the upper end of the housing 11. A bushing 15 is arranged on the tube near the upper end thereof.

In practice the tube 1 is reciprocated and each time it descends the bushing 15 strikes and compresses the spring 14 so as to keep the sand agitated and prevent it from centering upon the upper end of the housing 11. The guide 13, which is slidably engaged by the surface of the tube 1, acts to scrape sand from the tube on the downward stroke so that this sand flows outwardly with the fluid through the apertures 12 and is thus kept away from the cups in the working barrel on which the tapered end 9 of the sleeve 8 is seated. Thus old style cups can be used without being cut up by the sand and the structure will consequently be more efficient than those devices wherein means other than the old type cups 7 are employed. During the operation of this device fluid will come in through the seat at the lower end of the tube 1 and travel through this tube, ultimately escaping past the valve 3. The perforated housing 11 is at all times covered with fluid because the well tubing will be full while the pump is working.

What is claimed is:

1. A device of the class described including a tube, a cage at each end thereof, a valve within each cage, a travelling valve depend ing from the lower cage having cups and fol lowers, a tapered sleeve adapted to be seated on a working barrel in which the tube is adapted to be suspended, said tube extending through the sleeve, a frusto-conical scraper mounted on the sleeve and extending around the tube, and a perforated housing supported by the sleeve and enclosing the scraper.

2'. In a device of the class described a tube having a valved cage at each end, a travelling valve depending from the lower cage having cups and followers, a housing having apertures, said tube being slidable within the housing. means for supporting the housing above theupper end are working barrel in which the tube is adapted to be suspended, and means within the housing for scraping sand from said tube and directing it with fluid through the apertures in the housin 3. The combination with a tube having a 'alved cage at each end and a travelling valve depending from the lower cage, of a sleeve on the tube adapted to be seated on the upper end of a working barrel in which the tube is adapted to be suspended, a pcrforated housing supported by the sleeve and surrounding the tube and means within the housing for scraping sand from the tube and directing it with fluid tl'irough the apertures in the housing.

at. The combination with a tube having a valved cage at each end and a travelling valve depending from the lower cage, ot a sleeve on the tube adapted to be $61 ted on the upper end of a working barrel iii which the tube is adapted to be suspended, a perforated housing supported by the sleeve and surrounding tlie tube, means within the housing for scraping sand from the tube and directing it with fluid through the apertures in the housing. a spring upon the tube and bearing against the upper end of the housing, and means movable with the tube for compressing the spring during each downward stroke of the tube, thereby to agitate sand and prevent it from accumulating on the upper end of the housin In testimony that I claim the foregoing as my own, I have hereto aliixed my 'signiu ture.

MONROE M. MUoKnnRATr-r.

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