Casing spacer
AssigneeAdvance Products and Systems, Inc.
InventorsChad Anthony Calais, Gary Dwayne Simon
Life of this patent
Estimating the term…
Abstract
A casing spacer comprised of a pair of bands formed in a semi-circular configuration of a desired radius. Each band has a plurality of threaded studs that extend radially outward from the outside radial surface of each of the bands. The bands have a plurality of selected interchangeable risers, each of the interchangeable risers is configured to extend a desired distance from the outside radial surface of each of the band. The risers have a plurality of bore holes that are adapted to receive one of the threaded studs. The risers are detachably mounted to the bands by means of the threaded studs. The bands are fastened together around a carrier pipe to support the carrier pipe on the selected risers at a desired position when the carrier pipe is inserted into a casing pipe.
Claims12
A casing spacer comprising:
- (a) first and second bands, each of said bands being formed in a semi-circular configuration of a desired radius, each of said bands having inside and outside radial surfaces;
- (b) a plurality of interchangeable risers, each of said interchangeable risers being configured to extend a desired distance from the outside radial surface of each of said bands;
- (c) means for removably attaching a desired riser selected from said plurality of interchangeable risers to each of said bands;
- and
- (d) means for fastening said first band and said second band together around a carrier pipe whereby said carrier pipe is supported on said desired risers when said carrier pipe is inserted into a casing pipe.
A method of providing casing spacers for a carrier pipe having a varying range of outside diameters for use within a casing pipe having a varying range of inside diameters comprising:
- (a) providing a plurality of bands, each of said bands being formed in a semi-circular configuration to conform to the circumference of a selected range of carrier pipes;
- (b) selecting at least one pair of bands from said plurality of bands, each of said bands in said selected pair of bands having substantially the same semi-circular configuration;
- (c) providing means for mounting said selected pair of said bands on a carrier pipe selected from said selected range of carrier pipes;
- (d) mounting said pair bands on said carrier pipe so as to encircled said carrier pipe with said pair of bands;
- (e) providing a plurality of risers, each of said risers having a desired dimension;
- (f) selecting a desired number of risers from said plurality of risers;
- (g) detachably mounting said selected risers to said pair of bands whereby each of said risers extends outward radially from each of said bands in said pair of bands;
- (h) inserting said carrier pipe with said detachably mounted pair of bands and said mounted risers into a selected casing pipe;
- and
- (i) supporting said carrier pipe within said selected casing pipe on said detachably mounted risers.
A casing spacer comprising:
- (a) first and second bands, each of said bands being formed in a semi-circular configuration of a desired radius;
- (b) a plurality of threaded studs, said studs extending radially outward from the outside radial surface of said bands;
- (c) a plurality of selected interchangeable risers, each of said interchangeable risers being configured to extend a desired distance from the outside radial surface of each of said bands, each of said risers having a plurality of bores, each of said bores being adapted to receive one of said threaded studs;
- (d) a plurality of nuts, each of said nuts being adapted to be tightened onto one of said studs received in said bores of said selected risers and thereby removably fastening each said selected risers to said bands;
- and
- (e) means for fastening said first band and said second band together around a carrier pipe whereby said carrier pipe is supported on said selected risers when said carrier pipe is inserted into a casing pipe.
The casing spacer of claim 13 further comprising a resilient pad mounted onto the inside radial surface of each of said bands.
Dependencies are inferred from the claim text.