Polycrystalline diamond cutting elements with transition zones and downhole cutting tools incorporating the same

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United States of America Patent

PATENT NO 11156036
APP PUB NO 20190136636A1
SERIAL NO

16240877

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Abstract

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A cutting element may include a substrate including a plurality of metal carbide particles and a first metal binder having a first metal binder content; an outer layer of polycrystalline diamond material at an end of the cutting element, the polycrystalline diamond material including a plurality of interconnected diamond particles; and a plurality of interstitial regions disposed among the interconnected diamond particles, the plurality of interstitial regions containing a second metal binder having a second metal binder content. The cutting element also includes at least one transition zone between the substrate and the outer layer, the at least one transition zone including a plurality of refractory metal carbide particles and a third metal binder having a third metal binder content, the third metal binder content being less than the first metal binder content and the second metal binder content.

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Patent Owner(s)

Patent OwnerAddress
SCHLUMBERGER TECHNOLOGY CORPORATION300 SCHLUMBERGER DRIVE SUGAR LAND TX 77478

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cannon, Neil Woodland Hills, US 41 845
Crockett, Ronald B Provo, US 91 2218
Hall, David R Provo, US 1292 20766
Keshavan, Madapusi K Oceanside, US 127 6299
Norris, Dwain Provo, US 8 20

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