US Patent No: 5,888,944

Number of patents in Portfolio can not be more than 2000

Oil-based drilling fluid

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Abstract

A method of removing the filter cake formed from invert emulsion compositions including an oleaginous, a non-oleaginous and an acid sensitive surfactant in an oil and gas well are disclosed. The acid sensitive surfactant is selected so that the invert emulsion can be broken and residual filter cake solids made water-wet upon the addition of an acidic wash fluid to the well.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
M-I HOLDINGS L.L.C.HOUSTON, TX31

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Patel, Arvind D Sugarland, TX 87 1043

Cited Art

Patent Info (Count) # Cites Year
 
The Lubrizol Corporation (6)
4,230,586 Aqueous well-drilling fluids 38 1978
4,582,543 Water-based metal-containing organic phosphate compositions 23 1984
4,615,813 Water-based metal-containing organic phosphate compositions 32 1985
5,330,662 Compositions containing combinations of surfactants and derivatives of succinic acylating agent or hydroxyaromatic compounds and methods of using the same 45 1992
5,260,268 Methods of drilling well boreholes and compositions used therein 40 1993
5,620,946 Compositions containing combinations of surfactants and derivatives of succininc acylating agent or hydroxyaromatic compounds and methods of using the same 32 1994
 
Union Oil Company of California (3)
5,189,012 Oil based synthetic hydrocarbon drilling fluid 87 1990
5,156,686 Separation of oils from solids 39 1990
5,634,984 Method for cleaning an oil-coated substrate 35 1994
 
BANC ONE CAPITAL PARTNERS II, LIMITED PARTNERSHIP (1)
4,645,608 Method of treating oil contaminated cuttings 61 1984
 
COGNIS DEUTSCHLAND GMBH & CO. KG (1)
5,254,531 Oleophilic basic amine compounds as an additive for invert drilling muds 53 1992
 
ELEMENTIS SPECIALTIES, INC. (1)
5,710,110 Oil well drilling fluids, oil well drilling fluid anti-settling and method of providing anti-setting properties to oil well drilling fluids 24 1995
 
OGS LABORATORY (1)
5,403,820 Environmentally safe water base drilling fluid 23 1992
 
SCHLUMBERGER TECHNOLOGY CORPORATION (1)
4,735,731 Process for reversible thickening of a liquid 83 1986
 
SHELL OIL COMPANY (1)
4,670,550 Biopolymer formulations and processes for preparing them 27 1984

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
HALLIBURTON ENERGY SERVICES, INC. (20)
6,830,104 Well shroud and sand control screen apparatus and completion method 30 2001
6,626,241 Method of frac packing through existing gravel packed screens 82 2001
6,989,354 Invertible well bore servicing fluid 16 2003
7,829,507 Subterranean treatment fluids comprising a degradable bridging agent and methods of treating subterranean formations 2 2003
7,222,672 Wellbore fluids containing additives for removing a filter cake and methods of using the same 8 2004
7,534,745 Gelled invert emulsion compositions comprising polyvalent metal salts of an organophosphonic acid ester or an organophosphinic acid and methods of use and manufacture 2 2004
7,595,280 Delayed tackifying compositions and associated methods involving controlling particulate migration 11 2005
7,484,564 Delayed tackifying compositions and associated methods involving controlling particulate migration 23 2005
7,238,646 Invertible well bore servicing fluid 4 2005
7,591,318 Method for removing a sealing plug from a well 8 2006
7,455,112 Methods and compositions relating to the control of the rates of acid-generating compounds in acidizing operations 23 2006
7,674,753 Treatment fluids and methods of forming degradable filter cakes comprising aliphatic polyester and their use in subterranean formations 0 2006
8,220,548 Surfactant wash treatment fluids and associated methods 0 2007
7,939,474 Wellbore fluids containing additives for removing a filter cake and methods of using the same 0 2007
8,006,760 Clean fluid systems for partial monolayer fracturing 0 2008
7,906,464 Compositions and methods for the removal of oil-based filtercakes 0 2008
7,833,943 Microemulsifiers and methods of making and using same 2 2008
7,833,944 Methods and compositions using crosslinked aliphatic polyesters in well bore applications 3 2009
8,082,992 Methods of fluid-controlled geometry stimulation 0 2009
7,960,314 Microemulsifiers and methods of making and using same 0 2010
 
M-I L.L.C. (5)
6,499,546 Buffered well fluids 2 2001
7,081,437 Environmentally compatible hydrocarbon blend drilling fluid 1 2003
7,178,594 Method for using reversible phase oil-based drilling fluid 9 2004
8,105,989 Water based completion and displacement fluid and method of use 0 2006
8,227,382 Breaker fluids and methods of using the same 0 2008
 
CHEMTURA CORPORATION (1)
8,114,822 Soluble oil containing overbased sulfonate additives 0 2006
 
ENCANA OIL & GAS (USA) INC. (1)
6,935,426 System and method for polymer filter cake removal 7 2003
 
RHODIA CHIMIE (1)
7,247,604 Oil-based drilling fluid comprising a temperature-stable and non-polluting emulsifying system 3 2001