US1720979A - Standing-valve puller - Google Patents

Description

July 16, 1929. w. R. TIERCE STANDING'VALVE FULLER Filed Dec'. 19, 1927 Inventor W 2 Z'ei'ce g2. By A Patented July 16, 1 929.

WILLARD B.

TIERCE,OF VERNON, TEXAS.

. STANDING-VALVE FULLER.

Application filed December 19, 1927. Serial No. 241,239.

' The present, invention relates to improvements in standing valve pullers and has for its principal object to provide a simple and eflicient device which is capable of remov ing the standing valve from the lower end of the working barrel without necessitating the removal of the working barrel from the -ground.

One of the important objects of the present invention is to provide a standing valve puller which is simple in construction, in expensive, strong and durable and'further well adapted'to the purpose for which it is designed.

' Other objects and advantages will become apparent from the following description taken in connection with the accompanying drawing.

In the accompanying drawing forming part of this specification, and in which like numerals indicate like parts throughout the same: I Figure 1 is an elevational view of the standing valve puller embodying my invention showing the same attached to a standing valve just prior to lifting the standing valve upwardly out of the working barrel.

Figure 2 is a vertical sectional viewthro'ughthe sleeve that forms an important part of the present invention, showing the expansible coil spring arranged therein.

Figure 3 is a bottom plan view of the sleeve, and

Figure 4 is a detail perspective view of the screw member that also forms a salient part of .the present invention.

In the,drawing wherein for the purpose of illustration is shown the preferred embodiment of my invention, the numeral 1 designates the lower portion of a working barrel of a pump that is used in conjunction with the drilling of oil ,wells and seated in the lower end of this working barrel is the conventional standing valve 2. A cage 3 is associated with the upper end of the-standing valve for housing the ball valve 4 and is formed in its top with a tapered threaded opening 5, the purposeof which will be presently apparent.

My improved standing valve puller comprises a sleeve 6 that is ofa diameter slightly less than the inner diameter of the working barrell and the upper end of this sleeve is internally threaded as at 7 for attachment to the lower end of the travelling valve 8,

the lower end portion of which isdisclosed in Figure 1 of the drawing. It is of course to be understood that the-traveling valve is of the conventional construction and is carried by the lower end of the sucker rod in the manner well known in the art. An annular shoulder 9 is formed on the interior of this sleeve 6 adjacent the lower end thereof, and this is clearly illustrated in Figure 2. An expansible coil spring 10 is arranged within the sleeve and rests on the shoulder, the upper end of the coil spring being adapted to engage the lower end of the traveling valve 8 which is threaded in the upper threaded end 7 of the sleeve.

The lower end of the sleeve is furthermore formed with a pair of diametrically opposed bayonet slots 11 and 12 respectively. The lower ends of the vertical portions of these slots terminate at the bottom edge of the sleeve as clearly illustrated in the drawing. The purpose of the bayonet slots will also be presently apparent.

The invention further comprehends the provision of a screw member 13, the lower" end of which is reduced and threaded as at 14 with reference more particularly to F igure 4, the upper end of this screw member is rounded and pins 15 and 16 extend laterally from the upper portion of this screw member at diametrically opposite points.

The reduced threaded lower end 14 of this out'of the tubing and the well stops pumping; When sand has cut and damaged the standing valve, it is necessary to pull out the entire tubing from the ground to get to the f stationary standing valve, and this necessitates the expenditure of a considerable amount of time and labor. Hbwever, by providing a standing valve puller or extractor of the character such as shown and above described, it will not be necessary to remove the working barrel or tubing from the earth. The standing valve has the screw member threaded therein before the standing valve is initially inserted in the lower end of the working barrel.

The sleeve 6 is carried by the lower end of the traveling valve and the spring 10 will normally be expanded so as to engage the shoulder 9 at one end and the lower end of the traveling valve at its opposite end, this sleeve will act as a part of the traveling valve and the usual cups are arranged on the traveling valve. The traveling valve will hold the fluid on its upstroke and take in fluid on its down stroke. The valve associated with the standing valve works oppositely from the valve that is associated with the traveling valve, the two together holding all of the fluid that is sucked into the tubing at all times.

It is of course, understood that the sleeve is disconnected from the pins 15 and 16 of the screw member during the ordinary operation of the sucker rods and the traveling valve carried on the lower end thereof and to which is secured the sleeve 6.

Should it become necessary to remove the standing valve from the working barrel, the sucker rod elevators on the top of the tubing (not shown) and sucker rod are forced downwardly so that the sleeve .6 will move downwardly in the working barrel and when the open lower ends of the bayonet slots are in registry with the respective pins carried by the screw member 13, said pins will then be positioned in the slot so that the horizontal portions of the bayonet slots are in alinernent with the pins, and when the sleeve is slightly turned, said pins will be disposed in the horizontal portions of the respective slots, thereby locking the sleeve to the screw member and to the standing valve. Simultaneously with the connecting of the sleeve to the screw member, the pins 15 and 16 Will compress the spring 10 in the manner shown in Figure 1 and exert the necessary tension to retain the pins in the horizontal portions of the respective bayonet slots so that when the traveling Valve is raised upwardly out of the well, the standing Valve will also be raised and removed.

After the necessary repairs have been made, the standing valve is dropped into the working barrel, and the same will again be seated are set and the traveling valve in a stationary mannerv in the bottom of the working barrel for further use.

It will thus'be seen from the foregoing description that I have provided a standing valve puller which will at all times be positive and efficient in its operation and which will furthermore save considerable time and labor in removing a standing valve and making the necessary repairs without necessitating the removal of the working valve from the ground.

While I have shown the preferred embodiment of my invention, it is to be understood that various changes in the size, shape and arrangement of parts may be resorted to without departing from the spirit of the invention and the scope of the appended claim.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent is In combination, a working barrel, a standing valve unit removably seated in the bottom of the barrel, a reciprocable traveling valve operable in the barrel, a sleeve carried by the lower end of the traveling valve, said sleeve being formed at its lower end with a pair of diametrically opposed bayonet slot-s, an an- ,nular shoulder formed on the interior of the lower portion of the sleeve, an expansible coil spring arranged within the sleeve and disposed between the shoulder and the lower end of the traveling valve, a member rigidly secured at its lower end on the top of the standing valve, and laterally extending pins carried by the upper portion of the member for cooperation with the bayonet slots to connect the sleeve to said member whereby the standing valve may be removed from the lower end of the working barrel when the traveling valve is raised upwardly out of the barrel, said expansible coil spring being compressed by the pins when the same are engaged within the slots so as to secure said pins within the circumferential portions of the slots.

In testimony whereof I affix my signature.

' WILLARD R. TIERGE.

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