US1536370A - Oil-well packer - Google Patents

Description

May 5, 1925. 1,536,370

H. E. BECKER OIL WELL PAGKER Filed March '7, 1923 Patented May 5, -1925.

UNITED STATES PATENT OFFICE.

HARRY E. BECKER, OF BREA, CALIFORNIA, ASSIGNOR TO REGAN FORGE AND EN- GINEERING COMPANY, INC., O'F SAN PEDRO, CALIFORNIA, A.

CALIFORNIA.

CORPORATION OE OIL-WELL PACKER.

Application filed March 7, 1923. Serial No. 623,554.'

To all 'whom t may concern.'

Be it known that I, HARRY E. BECKER, a citizen of the United States, residing at Brea, in the county ot Orange and Staterot California, have invented new and useful Improvements in Oil-Well Packers, ot which the following is a specification.

My inventionrelates to packers for oil wells, particularly adapted for sealing the Space between the well tubing and the wel] casing, in orderthat water or other objectional fluids-'may be prevented from seeping into the well, becoming mixed with the oil and discharged therewith through the well tubino* and for many other purposes which will be apparent to experienced oil well dri'llers.

My invention contemplates a novel construction of packer device, adapted to be interposed in the oil well tubing at any desired position between its ends, which issimple, durable, eicient, inexpensive and which may be easily and expeditiously operate Other objects of my invention will be more fully disclosed in the following specification, reference being had to the accompanying drawings, in which:

Fig. 1 is a vertical section through my device, as it would appear when first inserted in an oil well casing.

Fig. 2 is a similar view to that of Fig. 1 showing the device in operative packing position.

Fig. v3 is a transverse sectionl taken on the line 3-3 of Fig. 1.

In general, my packing device comprises two tubular members, 5 and 6, telescoped together, the tube 5 bein adapted to be threaded at its upper en as at 7, to an upper length to the top of the well, and the tube 6 being adapted to be threaded at its lower'end, as at 9, to a lower section of well tubing 10 extending into the oil bed.

The outer annular surface of -tube 5 is conical in shape, as at 11, and surrounding the same intermediate its ends, is a rubber gasket 12. The tube 5 is provided adjacent its upper end with a flange or shoulder 13, and interposed between this shoulder, and a washer 14 which rests upon the upper surface of the gasket 12, and surrounding the tube 5, is, a compression spring 15, which of well tubing 8 which extends serves to keep the gasket normally pressed downwardly on the tapered tube 5 and in an unexpanded state. Threaded to the lowerl end of tube 5 is a collar 16 which is heldv in an adjusted position by means of a lock nut 17, as clearly shown in the drawings.

The .tubular member 6,v for convenience of assembly, is made up of several parts, comprising the lower washer member 18 to which the lower section 10 of the well tubing is threaded, and which in turn is threaded at 19 to the spear memberv 20, which in turn is threaded t'o a tubing 21 in which the. collar 16 'of tube 5 slides. The upper end of tublng 21 is .provided'with a cap 22 havin@ an inturned iange 23 formed thereon, an

adapted to engage with the collarl 16 to limit the telescoping movement of tubings 5 and' 6 and to prevent them from separating whenv projected into the well casing, which is represented by the numeral'24.

The lower end of the packing lgasket 12 rests upon the flange 23 of ca 22 and is held centrally disposed therewith by means ofthe tapered flange 25, formed on the cap.

The spear member 20, adapted to operate in the usual manner, to grip the Well casing 24, is provided with the usual slips 26, and disposed in sockets 27 formed in washer member 18, are the springs 28 which engagn with the lower ends of the slips 26, and in order that the slips may be temporarily held from becoming engaged with the wall of the wellr casing while the device is being lowered into the same, pins 29, are provided, or otherwise pass transversely across the `bore of the spear member 20, and the ends of the same engage in corresponding apertures 30 and 31 formed respectively in the slips and the wall ot the spear member, as clearly shown in Fig. 1 of the drawings. The pins 29 are formed of a pliable metal of suiicient strength to withstand the pressure of the springs 28, said springs being only of suiiicient strength to torce the slips upwardly from theslips. The springs 28 then actto force and slips upwardly and cause them to engage with the wall oi' the well casing, as shown in F ig. 2 of the drawings, thus locking the tubular member 6 and the well tubing 10 pending therefrom, to the well casing. After this operation has been kcompleted, the tubing 8 is released, and as the weight of the same is sufficient to overcome the pressure of the spring l5, the conical member 5 rides downwardly and consequently causes the packing gasket 12 to expand and wedge tightly against the wall of the well casing, thus forming a seal between the well tubing and the well casfng.

lVhat I claim is- 1. A well packer, comprising a tubular member having a clutch mechanism mounted thereon, a conical shaped tubular member telescoped within said first mentioned tubular member, a resilient packing gasket surrounding the conical shaped tubular member and resting upon said first mentioned tubular member,1 and a coiled spring mounted on the conical member and bearing against the packing gasket to return the same to an unexpanded condition 'after a packing operation.

2. A well packer, comprising a tubular member, a clutch member mounted in. said tubular member, a resilient means 'for operating said clutch member, means projectinginto the bore of said tubular member for rendering said resilient means inoperative, a second conical shaped tubular member mounted in telescopic and vertically niorable relation With the first mentioned tubular member, and a resilient packng meniber associated with the conical shaped tnbular member adapted to be operated upon A' a relative sliding movement thereof.l

3. A Well packer, comprising a tubular member having a clutch mechanism mounted thereon, a conicalshaped tubular member telescoped within said first mentioned tubular member provided with a shoulder, a resilient packing gasket surrounding the conical shaped tubular member and resting on the first mentioned tubular men'lber, and

a spring interposed between said resilient packing gasket and the shoulder of said conical shaped tubular member.

In Witness that I claim the foregoing l have hereunto subscribed my name this 2T day of January, 1923.

HARRY E. BECKER.

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