WELLBORE CENTRALIZERS CENTRALIZER STOP

Brand	Owner (click to sort)	Address	Description
SPIR-O-BITE	DOWNHOLE PRODUCTS LIMITED	Suite 100 22001 Northpark Drive Kingwood TX 77339	Wellbore centralizers and centralizer stop collars for use in oil and gas exploration, drilling of bore holes and production of oil and gas, primarily made of metal;
SPIR-O-LITE	DOWNHOLE PRODUCTS LIMITED	Suite 100 22001 Northpark Drive Kingwood TX 77339	Wellbore centralizers and centralizer stop collars for use in oil and gas exploration, drilling of bore holes and production of oil and gas, primarily made of plastic material;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A centralizer for maintaining stand-off and/or centralizing a tubular member inside a larger diameter tubular member, for instance, in a wellbore. The centralizer is provided with bow springs that compress to a minimal diameter around the outer diameter of the sub to which the centralizer is concentrically mounted when compressive force is applied to the bow springs to facilitate insertion of the centralizer into restricted openings and/or flow control or wellhead equipment. The minimal diameter of the centralizer is provided by mounting the bow springs to a reduced diameter portion of the collar that is mounted to the sub, and even greater reduction in diameter is achieved by mounting the bow springs in notches formed in the reduced diameter portion of the collar.