Inventor · Duncan, OK, US

Eldon D. Dalrymple

48Patents
20h-index
35Co-inventors
81Inventor score

Filing activity: Aug 6, 1997 → Apr 29, 2014

Most-cited inventions

PatentTitleAreaCited byStatus
US7007752B2 Well treatment fluid and methods with oxidized polysaccharide-based polymers Chemistry; Metallurgy 101 Expired
US6981552B2 Well treatment fluid and methods with oxidized polysaccharide-based polymers Chemistry; Metallurgy 96 Expired
US6476169B1 Methods of reducing subterranean formation water permeability Chemistry; Metallurgy 94 Expired
US5944106A Well treating fluids and methods Emerging Cross-Sectional Technologies 69 Expired
US7552771B2 Methods to enhance gas production following a relative-permeability-modifier treatment Chemistry; Metallurgy 65 Active
US6070664A Well treating fluids and methods Fixed Constructions 59 Expired
US6364016B1 Methods of reducing the water permeability of subterranean formations Chemistry; Metallurgy 56 Expired
US7117942B2 Methods useful for controlling fluid loss during sand control operations Chemistry; Metallurgy 54 Expired
US7891424B2 Methods of delivering material downhole Fixed Constructions 49 Active
US7207387B2 Methods and compositions for use with spacer fluids used in subterranean well bores Emerging Cross-Sectional Technologies 48 Expired
US7182136B2 Methods of reducing water permeability for acidizing a subterranean formation Chemistry; Metallurgy 45 Expired
US7759292B2 Methods and compositions for reducing the production of water and stimulating hydrocarbon production from a subterranean formation Chemistry; Metallurgy 41 Expired
US7563750B2 Methods and compositions for the diversion of aqueous injection fluids in injection operations Chemistry; Metallurgy 35 Expired
US7220708B2 Drilling fluid component Chemistry; Metallurgy 33 Expired
US7216707B2 Cement compositions with improved fluid loss characteristics and methods of cementing using such cement compositions Chemistry; Metallurgy 28 Expired
US7331390B2 Compositions and methods for plugging and sealing a subterranean formation Chemistry; Metallurgy 27 Expired
US7589048B2 Methods and compositions for reducing the production of water and stimulating hydrocarbon production from a subterranean formation Chemistry; Metallurgy 23 Active
US7595283B2 Methods and compositions for reducing the production of water and stimulating hydrocarbon production from a subterranean formation Chemistry; Metallurgy 23 Active
US6889766B2 Methods for passing a swelling agent into a reservoir to block undesirable flow paths during oil production Fixed Constructions 21 Expired
US7493957B2 Methods for controlling water and sand production in subterranean wells Fixed Constructions 21 Expired
US7322414B2 Crosslinkable-polymer compositions and associated methods Chemistry; Metallurgy 20 Expired
US8420576B2 Hydrophobically and cationically modified relative permeability modifiers and associated methods Chemistry; Metallurgy 19 Active
US8703659B2 Sealant composition comprising a gel system and a reduced amount of cement for a permeable zone downhole Chemistry; Metallurgy 17 Active
US7325613B2 Crosslinkable polymer compositions comprising phenols and associated methods Chemistry; Metallurgy 15 Active
US7287586B2 Compositions and methods for plugging and sealing a subterranean formation Emerging Cross-Sectional Technologies 15 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.