US2292345A - Oil production control device - Google Patents

Description

Aug. 11, 1942.

A. ARUTUNOFF OIL PRODUCTION CGNTROL DEVICE FiledAug. 23. 1940 SVS, S.v lS ,/S, Sm S, SiS, VS. S, S (.7 S ,.S? S1 A haill plwmmtmrn 1 i la- INVENTOR z 515.5% wy N y@ VS. S. S. S. SKS f1 S .,S., S. Y fS. SVS. f S, ..,S,VS.. SVS, l

EV- EEE.

Patented Aug-ll,

on. PRODUCTION CONTROL nevica Armais Arutunoil, Bartlesville, Okla., assigner to Reda Pump Company, Bartlesvillekla., a cor,-

poration of Delaware Application August 23, 1940, Serial No. 353,862`

Claims.

My invention relates to an oil production control device.

In many areas,voil production is limited by law to a certain amount. Frequently this amount is so small that it is difiicult to find pumping equipment f small enough capacity to produce thewells. If larger size equipment is used, there an oil production control device in which standard size pumping equipment may be used. In the accompanying drawing which forms part of the instant specication and is to be read in conjunction therewith and in which like reference numerals are used to indicate like parts in the various views:

Figure l is a sectional view of a well showing my oil production control device in place.

Figure 2 is an enlarged sectional View showing my device being lowered into the well.

Figure 3 is an enlarged sectional view showing my device' in production controlling position.

Referring now to the drawing, the assembly is attached to the end of any suitable pumping equipment I by means of a perforated nipple 2, and comprises a member 3 formed with a bore 4 and tapered outer side walls 5. Supported within the bore 4 is a plug 6 yprovided with an orice 1. The plug 6 is removable and a plurality of interchangeable plugs 6 provided, each with an Orice of a size different than that of any of the other plugs,.so that the plug with the desired size orifice may be employed, depending upon the particular well for which my device is used. 'The orice 'l is calibrated so that, for the pressure in a particular well, the amount of oil flowing through the Orifice will be equal to the allowable production. The member 3 carries a tube 8 which supports an anchoring and packing assembly positioned thereabout. A sleeve member 9 surrounding and slidably mounted on tubes 8 is held in its lower position shown in Figure 2 when the assembly is being lowered into the well. Secured to the sleevel 9 are housing members I6 and I'I which house a packing member I8 adapted to pack oil the well against the well casing I9. The housing member I6 is formed with a vertically disposed slot I8 hav- 55 ing a horizontal portion II.- A pin I2 secured to the tube 8 holds the sleeve 9 in the lower position shown in Figure 2. Secured to the sleeve are spring members I3, supporting anchoring members or slips I4. The anchoring members are formed with a tapered inner surface I5, adapted to coact with the tapered surface of the member 3. The spring members I3 norinally hold the anchoring members I4 inwardly as shown in Figure 2.

The lower housing member Il supports spring iingers 20 which are normally bowed outwardly to frictionally contact with the casing I9. The

lower portion of member I'l is also provided with the lower porlower portion of member II containing the packing rings 2| acts as a valve controlling ports 23 formed in the pipe 8. A number of ports 24 are foned in the upper portion of the sleeve 9.

In operation, the assembly is lowered into the well with the parts in the position shown in Figure 2. Oil below the packer I8 is displacedby the packer as the assembly is lowered. This oil passes upwardly through pipe 8, as shown by the arrows, through ports 23 into the annular space 22 and out through the ports 24 in the sleeve 9. When the assembly has reached the desired position `in the well casing, it is rotated to move the pin I2 out of the horizontal portion II of the slot, permitting it to enter the vertical slot I0. Continued lowering of the assembly will move the member 3 and pipe 8 downwardly relativeto the external sleeve 9. Downward motion of the body member 3 will cause the tapered surface 5 therefore to engage the tapered surfaces I5 of the anchoring members I4 to cam the members outwardly to the position-engaging the well casing I9, as shown in Figure 3, thereby securing the assembly to the casing I9. The downward movement of the pipe 8 relative to the sleeve 9 also moves the valve at the lower end of the member I1 upwardly relative to the ports 23, closing these ports from access to the annular space 22. The position of the parts can be seen by reference to Figure 3, in which it will be noted that the skirt 25, secured to the member I'I, covers the ports 23, while the sealing rings 2I are sealed against the exterior of the pipe 8 above the ports 23. The downward movement of the sleeve 9 relative to the pipe 8 when the pin I 2' is positioned in the vertical` portion of slot I is prevented by frictional engagement of the spring fingers 2Q with the wa-lls of the casing I9. When the parts are in the position shown in Figure 3, oil may ow ourl of the well only through the orifice I of the plug 6. Oil ows outwardly through the openings 26 in the nipple 2 and fills the casing I9 above the packer I8 to the height determined by the pressurein the well. It will' be seen, therefore, that the packer I8 forms a reservoir above the packer with the casing, which reservoir is filled only through the orifice 1 of the:

plug 6. At suitable intervals the pump I may be operated to empty the reservoir formed by the packer I8 with the casing. During this pumping operation, the pump may be run at full the same time, full size pumping equipment can be used and, through this pumping equipment, the well may be operated eiciently over short periods of time, rather than inefliciently over long periods of time.

It will be seen, therefore, that I have accomplished the objects of my invention. I have provided an oil production control device enabling efiicient use of standard size pumping equipment to be made without the danger of exceeding the allowable production for the well.

When it is desired to remove the assembly from the well or to change its position, the pumping equipment is lowered until the pin I2 contacts the upper wall of the horizontal slot II. The pump is then rotated to seat the pin in the slot II. As the member 3 moves upwardly with respect to the slips Il, the spring fingers I3- will move the slips inwardly to the position shown in Figure 2. With the parts in this position, the assembly may be removed from the well or shifted to any desired position and again located in place.

It will be understood that certain features and sub-combinations are of utility and may be employed without reference to other features and sub-combinations. This is contemplated by and is within the scope of my claims. obvious that various changes may be made in details within the scope of my claims without departing from the spirit of my invention. It is, therefore, to be understood that my invention is not to be limited to the specific details shown and described.

Having thus described my invention, I claim:

1. An oil production control device including in combination a perforated nipple adapted to be placed in communication with the intake port of a pump, a body member supported by said nipple, an orifice plug within said body member, a tube supported by said body member communieating with said orifice plug, a sleeve slidably 'mounted around said tube, a packer carriedby said sleeve, said sleeve forming an annular passageway with said tube, a port in said sleeve above said packer, a port in said tube below said packer, valve means carried by Said sleeve adapted to be moved to positions opening and closing said tube port, anchoring means carried by said assembly and moved to anchoring position bymotion of said sleeve with respect to said tube, means normally holding said anchoring means in non-anchoring position, the construction being It is furtherl tive by relative rotation between said tube and said sleeve.

2. An oil production control device including in combination a tube, a sleeve slidably mounted about said tube, said sleeve being formed with a bayonet slot, a pin secured to said tube and posiy tioned in said bayonet slot, an orifice plug carried by said tube, a packer carried by said sleeve, means carried by said sleeve for frictionally engaging the walls of a well, anchoring means carried by said assembly for securing the same in a well, said anchoring means being constructed to move to anchoring position upon relative vertical motion of said tube to said sleeve, said pin and said bayonet slot being constructed normally to prevent relative motion between said tube and said sleeve, said tube and said sleeve forming an annular passageway, said sleeve being formed with a port above said packer providing communication between the well and said annular passageway, said tube being formed with a port below said packer providing communication between said annular passageway and the interior of said tube, a valve carried by said sleeve adapted to cover said tube port when said tube and sleeve move relative to each other in a vertical direction to operate said anchoring means, said bayonet slot and pin being such that upon rotation of said tube and said sleeve relative to each other, said pin is moved to a position permitting vertical relative movement of said tube with respect to said sleeve.

3. An oil production control devicev including in combination a tube, a sleeve mounted on the tube for movement relative thereto, means for moving the sleeve to different adjusted positions on the tube, a passageway between the tube and the sleeve, a packer carried by the sleeve, means for anchoring the packer in the well, an orifice plug for controlling the ilow through the tube, ports in the inner tube below the orifice plug for admitting fluid in the tube into the passageway between the tube and sleeve, ports in the outer sleeve above the packer for discharging fluid in the passageway exteriorly of the sleeve, and a.

` combination a tube, a sleeve mounted on the tube for movement relative thereto, means for moving the sleeve to different adjusted positions on the tube, a packer carried by the sleeve, means rendered operative by movement of the sleeve for anchoring the packer within the well, an orifice plug for controlling flow through the tube, a bypass between the tube and sleeve, said bypass opening through the tube below the orifice plug and through the sleeve above the packer, and a valve carried by the sleeve adapted to open and close the bypass in different adjusted positions of the sleeve, the arrangement being such that in one adjusted position of the sleeve the valve will open the bypass so that uid in the tube can discharge from the device above the packer without passing' through the orice plug and that in another adjusted position of the sleeve the valve will close the bypass so that fluidin the tube must pass through the orifice plug before discharging from the device. v

5. An oil production control device including in combination a tube, a sleeve` mounted on the tube for movement relative thereto, means for moving the sleeve to dilerent adjusted positions on the tube, a packer carried by the sleeve, an orilice plug for controlling flow through the tube, a bypass between the tube and sleeve, said by'- pass opening through the tube below the orifice plug and through the sleeve above the packer, and a valve adapted to open and close the bypass in different adjusted positions ofthe sleeve, the arrangement being such that in one adjusted position of the sleeve the valve will open the bypass so that liuid in the tube can discharge from the device above the packer without passing through the orice plug and that in another adjusted position of they sleeve the valve will close the bypass so that fluid in the tube must pass through the orifice plug before discharging from the device.

ARMAIS ARUTUNOFF.

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