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Publication numberUS2630181 A
Publication typeGrant
Publication dateMar 3, 1953
Filing dateAug 12, 1950
Priority dateAug 12, 1950
Publication numberUS 2630181 A, US 2630181A, US-A-2630181, US2630181 A, US2630181A
InventorsSolum Kenneth W
Original AssigneeSolum Kenneth W
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Tubing rotating device for oil wells
US 2630181 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

K. w SOLUM 2,630,181

March 3, 1953 TUBING ROTATING DEVICE FOR OIL WELLS Filed Aug. 12, 1950 6) W wrmekx Patented Mar. 3, 1953 UNITED STATESPATENT OFFICE TUBING ROTATING DEVICE FOR OIL WELLS Kenneth W. Solum, Long Beach, Calif.

Application August 12, 1950, Serial No. 179,005

1 Claim.

This invention relates to a tubing rotating device ior oil wells, whereby the tubing of a producing well is intermittently rotated, thus reducing the wear on the tubing and also reducing the effect of electrolysis. as well as to insure that the joints of the tubing are kept tight.

An object of my invention is to provide a novel tubing rotating device or" the character stated, in which the motivating device in the tubing to cause rotation consists of a hydraulically actuated ratchet finger.

Another object of my invention is to provide a novel tubing rotating device of the character stated, in which the reciprocating movement of the ratchet finger is accomplished. by a novel valve construction.

Still another object of my invention is to provide a novel tubing rotating device, which is simple in construction, is compact in assembly, and does not require an external rod, chain, or the like, extending from the walking beam or other part of the pumping mechanism.

A feature of my invention resides in the novel construction of the hydraulically actuated ratchet finger which is self-contained and automatic in its action.

Other objects, advantages and features of invention may appear from the accompanying drawing, the subjoined detailed description, and the appended claim.

In the drawing:

Figure 1 is a side elevation of my tubing rotating device with parts broken away to show interior construction.

Figure 2 is a sectional view taken from line 22 of Figure 1.

Referring more particularly to the drawing, my tubing rotating device consists generally of a tubing head i, which includes an outer flanged housing 2, the housing being circular in cross-section, and is provided with a threaded cap 3, which screws into the top of the housing 2 so that the pipe fittings may be attached thereto to permit the oil to flow upwardly and thence into a tank, all of which is usual and well known. The tubing head i is positioned at the surface of the ground and rests on a suitable support to sustain the weight of the tubing, all of which is usual and well known in the art.

The well tubing 4 extends downwardly to the bottom of the well and oil flows upwardly in this tubing either by action of a pump,or by the natural pressure in the formation. It is advantageous to rotate this tubing 4 intermittently, this rotation of the tubing resulting in a reduction of wear on the tubing, it also decreases electrolytic action, and also insures that the various joints of the tubing are maintained tight at all times.

A ring 5 is positioned within the head I, and this ring rests on a bearing 6, within the head. This bearing is preferably of the annular ball type, although other bearings may be used, if desired. The tubing 4 is fixedly attached to the ring 5, that is, the ring may be threaded on to the top stand of tubing, or the tubing may be otherwise non-rotatably secured to the ring.

A ratchet l is cut on the ring 5, or is fixedly attached thereto, whichever is most desirable. A pawl 8 engages the ratchet l to prevent backward rotation of the ratchet and attached parts.

A cylinder 9 is mounted on the outer end of a tubular portion A6 of the head I, and I prefer that the cylinder 9 shall be threaded on to the part in. A piston II is reciprocally mounted in the cylinder 9, and a ratchet finger i2 is mounted on the piston H, and the outer end engages the ratchet 1, substantially as shown. A ball and socket 13 connects the finger l2 and the piston l I, so as to permit a small amount of lateral movement of the finger when escaping the teeth of the ratchet l. A spring It bears against the piston H and urges this piston and the finger 12 to retracted position, or as viewed in Figure 2, the piston and finger are urged to the right. That is the finger l2 is moved to a position to engage another tooth of the ratchet l. A hydraulic pipe I 5 extends into a cylinder 9 and back of the piston H, and this pipe continuously admits hydraulic fiuid under pressure which acts on the back of the piston II, urging this piston and the finger I2 towards the left, which rotates the ratchet I in a clockwise direction, as viewed in Figure 2.

To permit the piston l l to return to its starting position, and to permit the finger ii? to engage a new tooth on the ratchet l, I provide the following valve construction:

A hollow valve i5 is seated axially with the piston ii and within the recess it, cut in the cylinder 9. A rod ii projects rearwardly from the piston El and extends into the hollow valve l5. A shoulder or head it on the end of the rod i! will act as a stop for the spring [9. When the spring is compressed it will unseat valve it when the piston H has moved towards the left a given distance. The spring l9 surrounds the rod ii and tends to hold the valve l5 in proper position on this rod. A hydraulic return pipe 23 extends from the recess l6 and returns to the intake side of the pump or pressure chamber.

In operation, assuming the parts in the position shown in Figure 2, hydraulic pressure in the pipe [5 will move the piston ll towards the left, thus causing the finger I2 to push against the teeth of the ratchet I and rotating the ring 5 and the tubing 4. When the piston H has advanced to the left its maximum stroke, the shoulder [8 engages the valve l5' and unseats this valve. Hydraulic pressure can now flow past the valve [5' and out through the return pipe 20. This return flow of the hydraulic fluid reduces pressure back of the piston H and the spring I4 then returns the parts to the position shown in Figure 2.

Having described my invention, I claim:

A tubing rotating device for oil wells comprising a fixed head, a tubing depending from the head, a ring rotatably mounted in the head, said tubing being attached to the ring, ratchet teeth on said ring, a hydraulic cylinder on said head and positioned horizontally thereon, a piston reciprocally mounted in said cylinder, a finger mounted on said piston, a ball formed on. one end of said finger, said piston having a socket therein to,

receive the ball, the other end of said finger engagin the ratchet teeth, a pressure intake pipe 4 extending into the cylinder adjacent one end thereof to exert pressure on the piston, a fluid outlet pipe extending from said cylinder, a valve, a seat in the cylinder between the fluid intake and outlet, said valve resting on said seat, a rod extending from the piston into the valve, a shoulder on the rod engageable with the valve to unseat the same, and a spring surrounding the finger and engaging the piston to urge said piston towards said intake pipe, 3, second spring surrounding the rod and extending between said shoulder at one end and the valve at the other end.

KENNETH W. SOLUM.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,143,973 Sleinbrahm June 22, 1915 2,239,298 Kraut Apr. 22, 1941 2,294,061 Williamson Aug. 25, 1942 2,471,198 Cormany May 24, 1949

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1143973 *Aug 6, 1914Jun 22, 1915Hermann KleinbrhamTwo-cylinder engine.
US2239298 *Jul 14, 1939Apr 22, 1941Max KrautFluid motor
US2294061 *Oct 11, 1940Aug 25, 1942Lion Oil Refining CompanyRotatable pump-tubing hanger
US2471198 *Mar 22, 1948May 24, 1949Cormany David RTubing rotator
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2693238 *May 17, 1951Nov 2, 1954Baker Jack FRotatable tubing hanger structure
US3019380 *Aug 25, 1960Jan 30, 1962General a variety of formshouser
US3065594 *May 1, 1957Nov 27, 1962Rockwell Mfg CoEscapement timed fluid and spring motor
US3082596 *Oct 16, 1959Mar 26, 1963Rockwell Mfg CorpPneumatic timed drive
US3101013 *Oct 26, 1959Aug 20, 1963Matthews & Co Jas HIndexing apparatus for marking devices and the like
US3141384 *Dec 3, 1962Jul 21, 1964Gen ElectricHydraulic reciprocating device
US3163221 *Jan 3, 1961Dec 29, 1964Shell Oil CoUnderwater manipulator for wells
US3220668 *Feb 13, 1964Nov 30, 1965Martin JamesHarness safety device for aircraft seats
US3345915 *Oct 12, 1964Oct 10, 1967Mallory & Co Inc P RSnap action fluid escapement for obtaining intermittent rotary motion
US3473757 *Aug 9, 1967Oct 21, 1969Louis J CashoreCord tensioning device
US3561325 *Jan 24, 1969Feb 9, 1971Merla IncReciprocating motor
US4674397 *Feb 21, 1985Jun 23, 1987Wilcox Thomas JFluid-operated reciprocating motor
US5139090 *Apr 8, 1991Aug 18, 1992Land John LTubing rotator with downhole tubing swivel
US5220943 *Aug 27, 1991Jun 22, 1993Montana Sulphur & Chemical Co.Internal pump assembly
US5228473 *Oct 9, 1990Jul 20, 1993Montana Sulphur & Chemical Co.Internal safety valve system
US5238022 *Oct 15, 1991Aug 24, 1993Montana Sulphur & Chemical Co.Internal rotary valve actuator system
US5280874 *Jun 26, 1992Jan 25, 1994Montana Sulphur & Chemical Co.Internal valve
US5285998 *Oct 9, 1990Feb 15, 1994Montana Sulphur & Chemical Co.Internal valve for pressure fluid containment vessels
US5327975 *May 28, 1992Jul 12, 1994Rotating Production Systems, Inc.Tubing anchor catcher with rotating mandrel
US5383519 *Aug 4, 1993Jan 24, 1995569396 Alberta Ltd.Apparatus for rotating a tubing string of a pumping wellhead
US5427178 *Feb 17, 1994Jun 27, 1995Rodec Tool Company Inc.Tubing rotator and hanger
US5429188 *Dec 29, 1993Jul 4, 1995Jorvik Machine Tool & Welding Inc.Tubing rotator for a well
US5431230 *Sep 27, 1994Jul 11, 1995Rotating Production Systems, Inc.Slant wellbore tubing anchor catcher with rotating mandrel
US5465788 *Feb 1, 1995Nov 14, 1995569,396 Alberta Ltd.Tubing string hanging apparatus
US5732777 *Dec 28, 1995Mar 31, 1998Dynamic Oil Tools Inc.Well tubing suspension and rotator system
US5836396 *Dec 31, 1997Nov 17, 1998Norman; Dwayne S.Method of operating a downhole clutch assembly
US5964286 *Jan 27, 1998Oct 12, 1999Rotating Production Systems (Canada) Inc.Tubing rotator
US6026898 *Nov 11, 1997Feb 22, 2000Campbell Industries Ltd.Integral tubing head and rotator
US6095241 *Jun 10, 1998Aug 1, 2000Campbell Industries Ltd.Coupling device for a drive assembly
US6543533Mar 2, 2001Apr 8, 2003Duhn Oil Tool, Inc.Well tubing rotator
US7306031Jul 15, 2004Dec 11, 2007Gadu, Inc.Tubing string rotator and method
US20140166300 *Dec 14, 2012Jun 19, 2014Brightling Equipment Ltd.Drive head for a wellhead
WO2014210433A1 *Jun 27, 2014Dec 31, 2014Cameron International CorporationBall launcher
Classifications
U.S. Classification166/78.1, 91/341.00R, 92/130.00R, 91/50, 74/160, 92/140
International ClassificationE21B33/03, E21B33/04, E21B19/00
Cooperative ClassificationE21B19/00, E21B33/0415
European ClassificationE21B19/00, E21B33/04F