US1548543A - Well equipment - Google Patents

Description

Aug. 4, 1925.

J. F. MOODY WELL EQUIPMENT Original Filed April 17, 1922 2 Sheets-Sheet l WI TN ESSES NVENTOR OOO ATTORNEYS Aug. 4, 1925.

J. F. MOODY WELL EQUIPMENT wiTNEssEs INVENTOR ATTRNEYS Patented d, i225.

@riginal application tiled April i7, 1922, Serial No. 553,87?.

To ZZ- u'lzom 'it may concern."

Be it known that JOSEPH F. MOODY, a citizen of the United States, residing at Tulsa, in the county of Tulsa and State of tllrlahoma, has invented new and useful improvements in llfell Equipments, of which the following is a specification.

This invention relates to well equipment and is a division of my pending application tiled April 17, 1922, Serial Number 553,877.

Briefly stated, an important object of this invention is to provide a tubing ring having novel means to compensate for the tilting of the tubing being lowered into the Well, and to position the tubing for proper engagement by the slips above.

A. further object of the invention is to provide a tubing ring of the character speci,- fied which may be employed in connection with standard equipment and which may be employed without departing radically from established practices.

Other objects and advantages will be apparent during the course of the following description In the accompanying drawings, forming a part of this application, in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a vertical sectional View of the improved tubing ring in use, the view also illustrating a tubing gripping device.

Figure 2 is a vertical sectional view through the improved tubing ring, the same being provided with slips for engaging` the tubing.

igure 3 is a horizontal sectional view taken on line 3.-3 of Figure 2.

Figure d is a detailed sectional view illustrating the improved tubing ring.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of the invention, the numeral 5 designates a casing provided at its upper end with a casingI head 6 from which outlet pipes 7 may extend. 0f course the outlet pipes 7 4may extend to a suitable point to permit the casing head gas to be employed for various purposes.

Figure 1 illustrates that the improved tubing ring 8 is snugly received in the upper portion of the head 6 and rests upon an annular shoulder ,9 at a point spaced from the upper end of the head 6. The tubing ring may be provided with an annular iivded and this application filed February Serial No. 12,140.

groove l() adjacent the ower end thereof and adapted to receive not screws l1 carried by the head 6 wher-obv to lock the ring to the head. However, the set screw l1 may be loosened slightly to permit the tubing ring to be manually turned.

Figure l also illustrates that the tubing gripping mechanism is generally designated by the numeral ld and is provided with a depending attaching portieri l5 received in the interiorly and exteriorly arched upper portion 16 of the ring 8 and held therein by set screws l7. As the tubing gripping mechanism le is fully described and claimed 1n the aforesaid pending application, no specific mention of this will be made in this application.

The improved tubing ring the lower portion thereof with an internal annular web or shoulder 20 having an eccentrically disposed opening for the reception of the tubing 22. The member 20 is provided with upper and lower annuli 23 and 2li, the openings of which are in line with the opening in the member 20.

Attention is directed to the fact that the tubing 22 is urged to a central position in the casing by an arcuate shoe 26 carried by the lower portion of a spring arm 27, the spring arm being securely connected as indicated at 28 to the annulus 24C. 'llhe tubing 22 is freely extended through the members 20, 23 and 24 in the tubing ring and is urged to a central position by the arcuate shoe 26, the said shoe forming a means to force the tubing into contact with one side of the internal structure of the tubing ring.

At this point it might be stated that when the tubing is being' lowered into the well and is supported by an elevator from above, the tubing has a tendency to tilt and consequently is not uniformly engaged by all of the slips 30 of the tubing engaging mechanism le. However, by the employment of the eccentrically disposed internal shoulder 20 and the spring actuated shoe 26, the tubing is straightened and is held at the axis of the casing whereby all the slips may uniformly engage the tubing.

Figure l also illustrates that edge portion of the arcuate shoe is provided at the upper 26 is somewhat beveled or curved outwardly to provide for the descent and passing of collars or couplings on the tubing. When the coul maintained at the aXis of thev casing.

plings on the tubing pass the spring actuated shoe 26, the shoe merely moves outwardly and does not in any way obstruct the descent of the tubing.

Referring no-wto Figure 2, it will be seen that the tubing 22 may\be engaged by a plurality of slips 40 which are received 1n the tapered opening in the parts' 20 and 23. Figures 2 and 3 illustrate that the slips 40 gradually vary in thickness so that the tubing when anchored to the tubing ring Iis n other words, each slip 40 increases gradually and more or less uniformly toward oneedge thereof to compensate for the eccentric 1ocation of the internal shoulder by which thelgrips are carried. Suitable packing means 43 may be employed between the meeting edges of thefslips 40.

Figures@ illustrates a slight modilication of dtheilinvention wherein it is shownl that the body 50 may be provided with an internal shoulder 51 having an eccentric tapered opening into which a bushing 52 is extended, and the bushings may be provided with an ear 53 resting snugly upon the shoulder 51 and held in place by a set screw 54 or other suitable fastening device. VWhen the bushing 52 is worn it may be readily re laced and it will be seen that the portion o the bushing which. is subject to the greatest wear is substantially thicker than other portions of the bushing'.

Having thus described my invention what is claimed is 1. The combination with the lcasing head of an oil well, of a well tubing guide ring having its opening eccentrically located with respect to the bore of said casing head.

2. The combination with the casing head of an oil well, of a well tubing guide rin having its opening eccentrically locate with respect to the bore of saidcasing head, and said opening having a taper at the top.

3. A well tubing guide ring having its opening of greaterdiameter than the work, said opening being oft' the center of the ring.

4. A well tubing guide ring having its opening of greater diameter than the work and said opening being olf the center of the ring and having a taper at the top.

5. A tubing guide ring comprising a body having an internalshoulder provided with an eccentrically disposed opening of a diameter to freely receive the tubing.'

8. A tubing guide member comprising a body having an internal shouldery provided with a tapered eccentric opening, and slips received in said opening and adapted for engaging the tubing, each slip being gradually thickened toward one ed e thereof whereby to maintain tubing at t e axis of the body.

9. A tubing guide member comprising a body having an internal shoulder provided with a tapered eccentric opening, and slips received in saidopening and adapted for engaging the tubing each slip being gradually thickened toward one edge thereof whereby to maintain tubing at the axis of the body, and upper and lower annuli carried by said shoulder.

10. A tubing guide member comprising a body having an internal shoulder provided with a tapered eccentric opening, and slips received in said opening and adapted for engaging the tubing, each slip being gradually thickened toward one edge thereof whereby to maintain tubing at the axis of the body, and upper and lower annuli carried by said shoulder, and a spring arm car ried by. said lower annulus and having an arcuate shoe engaging the tubing to maintain the tubing approximately at the axis of the body.

11. Awell tubing ring comprising a body having means whereby same may be connected to a casing head, said body being provided with an eccentrically located opening, and a spring arm having means to engage the tubing to position the tubing approximately at the axis of the said body.

In testimony whereof I aiiix my signa- 10B ture;

JOSEPH F. MOODY.

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