US 1646639 A
Description (OCR text may contain errors)
F. M. cRowELL l SUPPORT FOR WELL CASINGS Filed May 1s, 19.26Y
Crowell Patented Oct.` 25, 19,27.
UNITED "STATES FRANK M. CRownLL, or: TULSA, OKLAHOMA# surroar ron WsLL'cAsINGs.
Application led May 13, V1926. Serial. No108,92i&.
In deep producing oil and gas wells which. utilize casing, or tubing, as a conduit.
through which the production comes to the surface, 'where itis necessary to suspend all or part of the weightof the casing, or1
tubing, onclainps placed under a collar, or
coupling, at the top ot' the hole instead ci',l
The present invention provides a tubing.,
or casing support, or-clamp'lcnibodyingin a single structure, a'caslng'ring and casing clamp or a tubingring andtubing clamp and slips, said structure beingvpreferably formed in similar sections which are clamped about the tubingorV casing and recessedto receive a packing to insure a close joint and prevent any air leak.
Vliile the drawings illustrate a preferred embodiment of the invention` itV is tobe understood that in adapting the means to meet specific needs and requirements, the design may be varied and such other changes in the minor details of construction may be resorted to within the scope of the invention as claimed, without departing from the spirit thereof.
For a full understandingof the invention and the merits thereof, Yreference is to be had to the following description and the drawings hereto attached, in which Figure 1 is a detail view illustrating an applied embodiment of the invention, the
well casing, the packing and the connectingv bolts being in section, and one half of the support removed, p i
Figure 2 is a top plan view of the support clamped about a well tubing which is shown in section,
Figure 3 is a perspective view of one-half of dthe support, the packing being removed, an
Figure 4 is a perspective view of the packmg.
Corresponding and like parts are referred the teeth 7 ing of a size to receive the tubing-2. The
support .comprises similar parts or sections which are adapted to be clamped about the` vtubing 2` by means ofrbolts 3,;
A Each of the sections comprising Ihe support is the counterpartof the other and icompriscs a semi-circular plate .4 having a l dependingcentering element 5 .and-mung.
standing grip G ivhich is internally tootll1`ed,l as indicated at 7, to bite into the tubing2 and prevent possible slipping thereof, after' the supportA has been properlyl applied.
They outer side of the centering element` 5 is made tapering to enter the casing 1 and its inner side is recessed, asQindicated.v at 8. to Vreceive a packingl r1ng9 of softrubbeiz The inneredge ofthe plate 1-,Lis likewise `rc-A cessed, as indicated at 10 toireccive opposite extensions a'llof thevpacking ring 9 toinsure a, tight'jointvbetween the two sections or parts of the support when clamped about the tubing 2. The recesses 10 open into the recess 8, whereby provision is had for receiving the packing ring 9 and its extensions 11.
Ears 12 project outwardly from the upstanding part 6 and are apertured, as indicated at 13, to receive the bolts 3. The ears 12 connect the sides of IJthe part 6 with the plate 4, thereby serving to strengthen and brace .the same. The device is further strengthened by means of a brace 14 which is located intermediate the .ears 12 and cast with the plate 4 and grip 6.
The packing ring 9 is split and halved, as
tubing and between the parts comprising the base.
The invention provides a tubing support, which, as herein stated, comprises in one structure a casing ring and a tubing ring and obviates the necessity for separate slips, lsince the upstanding parts 6 are adapted to firmly grip the tubing when the parts or sections are drawn together by means of the bolts 3, 'A
preventing any possible slipping of the tubing. The construction is such as to admit of the parts being cast or dropforged and the construction is simplified, since one part or section is the duplicate of the other.
-Having thus described the invention, I claim:
1. 'A tubing support comprising similar parts, each consisting of a plate, a centering element depending from the plate, an internelly toothed upstanding portion upon the top of the plate in line with the depending centering element and apertured ears at opposite s1des of the upstnnding portion and forming connecting means between it and the plate.
2. A tubing support comprising similar parts, each consisting of a plate, a centering element depending 'from the plate, un internelly toothed upstnnding portion upon the top of the plate in line witli the depending centeringelement and apertlired ears at opvosite sides of the upslnndirg portion and orming connecting means between it and the plate, the inner edgey of the plate und the inner Wall of the depending portion being recessed for the reception ot' u pecking.
3. A tubing support comprising similar parts, each consisting of .-L plate, a centering element depending from the plate, an internally toothed upstanding portion upon the top of the plate in line with the depending centering element and apertured ears at opposite sides of theupstanding gripend forming connecting means between it and the plate, the inner edge of the plete and the inner wall ot' the depending portion being recessed for the reception of a acking coinprising a split ring and lopposite extensions to fit Within the recessed portions of the-sec-V tions.
4. A tubing support comprising similar parts, each consisting of a plate having depending and upstanding portions, the latter being internally toothed and the inner edge of the plate and the inner wall of the depending ortion being recessed, opposite ears connecting the sides of the upstanding portion with the plate and u brace intermediate the ears and connecting the said upstanding por. tion with the plate, a packing, comprising@ split ring and opposite extensions, adapted to tit within the recessed portions of the plate und the said depending portion and bolts passing through the said ears :1nd serving to clamp the parts about a tubing.
In testimony whereof I affix my signature.
FRANK M. CROWELL. [ns]