US Patent No: 4,465,598

Number of patents in Portfolio can not be more than 2000

Method of treating well servicing fluids

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Abstract

A method for removing heavy metals from brines used as well servicing fluids in which the heavy metal is oxidized to a higher, stable oxidation state of +3 or greater, the oxide or variants thereof of the oxidized metal is formed resulting in a generally water insoluble precipitate which is then removed by filtration leaving the brine free of deleterious amounts of the heavy metal.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HALLIBURTON ENERGY SERVICES, INC.HOUSTON, TX3622

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Darlington, Roy K Malvern, PA 2 44
Henry, Jr George Houston, TX 1 42
Lowell, Jack L Houston, TX 2 49

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Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
ALBEMARLE CORPORATION (30)
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6,322,822 Biocidal applications of concentrated aqueous bromine chloride solutions 21 1999
6,306,441 Concentrated aqueous bromine solutions and their preparation 16 1999
8,293,795 Preparation of concentrated aqueous bromine solutions and biocidal applications thereof 0 1999
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6,511,682 Concentrated aqueous bromine solutions and their preparation 4 2000
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6,299,909 Concentrated aqueous bromine solutions and their preparation 15 2000
6,506,418 Concentrated aqueous bromine solutions and their preparation 9 2000
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7,578,968 Microbiological control in oil or gas field operations 4 2002
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7,087,251 Control of biofilm 5 2002
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8,048,435 Preparation of concentrated aqueous bromine solutions and biocidal applications thereof 0 2009
 
BAKER HUGHES INCORPORATED (4)
7,144,512 Method of reclaiming brine solutions using an organic chelant 2 2003
7,172,703 Method of reclaiming a well completion brine solutions using an organic chelant 2 2005
7,678,281 Method of reclaiming brine solutions using an organic chelant 0 2007
7,674,384 Method of reclaiming brine solutions using an organic chelant 0 2007
 
BRINE EXTRACTION SYSTEMS TECHNOLOGY CO. (1)
4,755,303 Method of converting brines to useful products 9 1987
 
Envar Services, Inc. (1)
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4,634,533 Method of converting brines to useful products 32 1985
 
HALLIBURTON ENERGY SERVICES, INC. (1)
7,244,363 Methods for treating heavy halide brines with permanganates 2 2004
 
Hart Resource Technologies, Inc. (1)
7,022,240 Method for on-site treatment of oil and gas well waste fluids 8 2003
 
SEITZ ENZINGER NOLL MASCHINENBAU AKTIENGESELLSCHAFT (1)
4,566,912 Method of regenerating alkali-containing wash solutions utilized for cleaning containers 8 1984
 
TETRA TECHNOLOGIES, INC. (1)
6,143,698 Method for removing filtercake 115 1998
 
Union Oil Company of California (1)
5,024,769 Method of treating an arsenic-containing solution 20 1990