Patent ID: 11898422
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Surface technology, coating (Chemistry)
Classification: CPC E  C | IPC C  E

Claim 3:
4. A method for forming an expansion cone useful for expanding an expandable tubular, the method comprising:
forming a base expansion cone having an upper cylindrical section, a lower cylindrical section, and a tapered section therebetween;
forming a plurality of pockets within the base expansion cone tapered section;
disposing a plurality of inserts within the plurality of pockets, wherein the plurality of inserts are selected from a group consisting of unleached diamond-cobalt compacts, leached diamond-cobalt compacts, diamond-silicon compacts, binderless diamond compacts, diamond-boron nitride composite compacts, and their combinations;
wherein an upper surface of each of the plurality of inserts is 1-50 microns above an outer surface of an insert base material.