US1193609A - Pneumatic fluid-lift - Google Patents

Description

I. K. PUTNAM PNEUMATIC FLUID LIFT.

APPLICATION FILED JULY 6 Patented Aug. 8, 1916.

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@ttor/nuda J. K. PUTNAM.

PNEUMATIC FLUI-D LIFT.

APPLICATION FILED JULY 6.1915.

Patented Aug. 8, 1916.

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' ermee.

JAMES K. PUTNAM, OF TULSA, OKLAHOMA.

PNEUMATIC FLUID-LIFT.

Application filed July 6, 1915.

To all whom it may concern:

Be it known that I, JAMES K. PUTNAM, a citizen of the United States', residing at lTulsa, in the county of Tulsaand State of Oklahoma, have invented certain new and` useful Improvements in Pneumatic Fluid- Lifts; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to`- make and use the saine.

My invention relates' to improvements in pneumatic fluid lifts for blowing oil` wells and removing various other liquids from other forms of wells or pits.

The primary object of the invention is to provide means whereby a rigid pipe, eX- tending throughout the depth of the well,

.will operate a number of valves for closing and opening a number of ports in said pipe when turned, thereby controlhng the pressure entering said pipe from the well or pit.

To the above end, I provide the above.

mentioned 'rigid pipe and formv the same with a number of vertically spaced ports, provide valves for closing and opening said ports, circumferentially rotatable members ber of yielding leaf springs for yieldingly preventing movement of said members and to mount said springs in `such a manner as to allow them to freely expand and contract for the purpose of adapting. the invention to well tubing of dii'erent diameters.

With the above and minor objects in view,

the invention resides in certain novel fea-` tures of 'construction and combination herein described' and claimed and shown inthe drawings wherein Figure 1 is a vertical section through al well and its tubing showing the application of one form of my invention thereto;

,Fig 2 is an enlarged side elevation of a portion of the parts shown in Fig. 1, illustrating more clearly the positioning ofthe ports in respect to the circumferentially movable members, the port shown in this Specification of Letters Patent.

Patented Aug. 8, 1916.

Serial No. 38,235.

figure, being open; Fig. 3 is a similar view with the ports closed; Fig. 4 is a horizontal section on the top line 4-4 of Fig. 3; Fig. 5 is a vertical section taken upon the line 5-5 of Fig. 4; Fig. 6 is a viewl similar to Fig. l, showing a slightly different form .of construction .in which mechanically operated valves are employed; Fig. 7 is an enlarged side elevation of a portion of the parts shown in Fig. 6; Fig. 8 is a horizontal section on the line 8 8 of Fig. 7; and Fig. 9 is a vertical section upon the line 9-9 of Fig. 7. Fig. 10 is a detail vertical section through Ythe bell or hood at the lower end of the pipe.

ln the irst ive figures of the drawings, l have shown my invention as applied to a well W having the usual tubing or piping P and being substantially closed at its upper end by the usual cap C which is threaded onto the upper end of the pipe P and is provided with a central stuiing boX S.

Depending through the stuffing box S, eX- tending throughout the depth f the well and having its lower end embedded in the bottom thereof, is a pipe l which may be of any appropriate dimensions and which is preferably formed in a number of sections which are rigidly united by means of internally threaded sleeves 2. The pipe 1 is providedfnear its lower end, with a number of perforations 3 which communicate with the interior of a hood or bell 4, the latter being carried rigidly by said pipe and being preferably-threaded thereon. Below each sleeve or joint 2, the pipe l is formed with a port 5 and adjacent said ports, stop pins 6 are disposed, said stop pins coacting with segmental extensions 7 which rise from the upper ends of a number of sleeves 8, the upper ends of said extensions contacting with the lower ends of the couplings 2 and being held against downward movement by means of pins 9 or other suitable means. As clearly shown in Fig. l, the segmental eX- teiisions 7 increase in length from the lower to the upper end of the well, this construction becoming expedient in a manner to aptheir upper ends rigidly secured to the sleeves 8 while their lower ends are united ment being freely allowed by the sliding en-v gagement of the rings 11 with said pipe..

By reference particularly to Figs. 2 and 3, it will be seen that each stop pin 6 lies between the opposed ends of its respective upright extension `7 and that the space between said ends is suflicient to allow the ports 5 to be exposed when, the pipe 1 is rotated in the proper direction, certain portions of said extensions 7 overlying the ports, when the pipe is rotated in the opposite direction. For the purpose of forming an effective closure for said ports, I have provided the extensions 7 'with rubber valves 12 which are preferably inset in recesses 13 whereby theyare held against dislocation.l

With the parts as above described, the operation is as follows: A pipe 1 is inserted into the well to be blown and the cap C is threaded over the upper end of the pipe P, the latter projecting rotatably through the stuffing box S. If suiicient gas is trapped within the well, to raise the fluid therefrom,

no other fluid pressure need be employed. If however, the supply of gas is not sufficiently strong to raise the fluid, air may be forced into the tubing' at a proper pressure..

Whether air or gas is employed, the operation of the device is precisely the same.

When now the fluid is to be-extractedf from thewell, the pipe 1 is turned by meansI of a suitable handle l in such a'direction as to cause the uppermost stop pin 6 to move from its normal position against one end 7 of the extension 7 and contact with the other end 7 thereof, this movement exposing the uppermost port 5 and .allowing the -compressed air or gas, within the well, to escape through the upper end of the-pipe 1. The outrush of said air or gas provided the same be powerfulV enough, now draws the fluid from the well and discharges the same at the upper end of the pipe 1 from which it may be conveyed to suitable reservoirs (not shown). If the pressure, coming through the uppermost port 5, is not powerful enough to effectually extract Ythe fluid from the well, the ypipe 1 is further rotated until the next port 5 is exposed, thus giving twice the amount of pressure. From this descripyeo tion, it will be seen that a continued turn of the pipe will open all of the ports, the uppermost opening first and the lowermost last.' During. this turning of the pipe 1 after the-various stop pins 6-contact with crease in length as they near the-bottom of In Figs. 6 to 9, the construction' of the pipe 1, and the arrangement of the ports 5 and stop pins 9, is practically the same as the form previously described. In this case however, the ports 5 are provided with inwardly closing valves 12 which include cone-shapedl heads which are integrally joined with inwardly extending Shanks, nuts being threaded on the inner ends of the Shanks, which latter project loosely through the ports 5. For the purpose of operating the valves 12 when the pipe 1 is turned, I provide a number of sleeves S -which have upright extensions 7 a, the width of said extensions increasing from the top of the pipe to the bottom thereof. The sleeves 8 are provided with springs 10 which are similar to the springs 10 and are secured at their lower ends to rings 11 similar to the rings 11.

It may here be stated that the valves 12 .are canted when the pipe is turned in -a proper direction to cause the extensions 7a 12 thus cutting offv the supply of escaping air or gas and thereby preventing the discharge of fiuid from the pipe 1.

From the foregoing description, taken in connection with the accompanying drawings, it will be seen that I have produced an extremely simple fluid pressure lift which will be highly eflicient in operation and whichneeds no operating means other than the handle 1, attached to the top of the pipe 1.

I have described my invention with considerable minuteness but I do not wish to be limited to. details of construction or arrangement of parts otherwise than as amplified in the appended claims. 4.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is A 1. A pneumatic fluid lift including a revolubly mounted outlet pipe, Vcontinuing rigidly throughout the depth of the well and having 4a number ofvertically spaced ports, valves for the ports, circumferentially revoluble members upon the pipe adjacent the ports for operating the valves, means for yieldingly locking s aid members against movement and means for rotating the pipe whereby the ports may be opened and closed by the valves.

for the ports, circumferentially revoluble.

members on the pipe adjacent the ports, segmental extensions projecting from said members and lying in the lateral paths of the ports for operating the valves, means for yieldingly holding the members against movement, and means for rotating the pipe, whereby the ports may be opened and closed by the valves.

3. A pneumatic fluid lift including a revolubly mounted outlet pipe, continuing throughout the depth of the well and having a number of vertically spaced ports, valves for the ports, circumferentially revoluble members on the pipe adjacent the ports, segmental extensions projecting from said members and lying in the lateral paths of the ports for operating the valves, means for yieldingly holding the members against movement, stops in the swinging path of said segmental extensions, and means for rotating the pipe whereby the ports may be opened and closed by the valves. 4

4. A pneumatic fluid lift including a revolubly mounted pipe extending rigidly throughout the depth ofthe well and having a number of vertically spaced ports, sleeves encircling the pipe and having upright segmental projections lying in the paths of the ports, means for yieldingly holding the sleeves against rotation, and means for rotating the pipe whereby the ports may be opened and closed bythe projections.

A pneumatic fluid lift including a revolubly mounted pipe extending rigidlythroughout the depth of the Well and having a number of vertically spacedjports, sleeves encircling the pipe and having upright segmental projections ot' varied lengths and lying in the planes of' the ports, means for yieldingly holding the sleeves against rotation and means for rotating the pipe, Whereby the ports may be opened and closed by said projections.

6. A pneumatic`fluidliftincluding a revolubly mounted pipe extending rigidly throughout the depth of the well, andchaving vertically spaced ports, valves for the ports, circumferentially movable members on the pipe and having segmental portions lying in the planes of the ports for operating the valves, rings loosely mounted on the pipe and spaced from the members, outwardly curved springs secured. at their opposite ends to the rings and to said members and means for rotating the pipe.

T. A lpneumatic fluid lift including a revolubly mounted pipe extending rigidly throughout the depth of the Welland having vertically spaced ports, circumferentially movable members on the pipe and. having segmental portions lying in the planes of the ports for controlling the latter, means forrotating the pipe and stops for limiting the amount of rotation thereof in respect to said members.

8. A pneumatic fluid lift including a revolubly mounted pipe extending throughout the depth of the well and having vertically spaced ports, sleeves rotatable upon the pipe and having upright segmental portions lying in the paths of' the ports for controlling the latter, means for yieldingly holding the sleeves against rotation, means for rotating the pipe in the sleeves and. stops on the pipe adapted to contact with the ends of the segmental projections to limit the rotary movement of the pipe in respect to the sleeves. i

9. A pneumatic fluid lift including a revolubly mounted pipe extending throughout the depth of the well and including a number of sections each having a port, couplings I uniting the meeting ends of' the pipe sections, sleeves encireling the sections, segmental projections on one end of the sleeves in contact with the couplings and adapted to control the ports, stops carried by the pipe and contactingwith the other end of the sleeves, means for yieldingly preventing movement ot' said sleeves, means for rotatingl the. pipe within said sleeves, and stops on the. pipe adapted to contact with the ends of the segmental projections and limit the movement ol thepipe in respect thereto.

In testimony whereof I have hereunto set my hand in presence of two subscribing wit-

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