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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
HALLIBURTON COMPANY	P O DRAWER 1431 DUNCAN OKLAHOMA 73536

International Classification(s)

• C09K:MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED ....
• E21B:EARTH OR ROCK DRILLING

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Gdanski, Rick D	Duncan, OK	7	358
# of filed Patents : 7 Total Citations : 358
Shuchart, Chris E	Duncan, OK	13	702
# of filed Patents : 13 Total Citations : 702

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Patent Citation Ranking

• 23 Citation Count
• C09K Class

• 82.34 % this patent is cited more than
• 22 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

Full Text

US Patent No: 6506711

Reducing aluminum compound precipitation during subterranean formation acidizing

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Abstract

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Methods and compositions for reducing the precipitation of fluoride compounds following the contact of an aluminum containing subterranean formation with an acid solution containing hydrofluoric acid are provided. In accordance with the methods, a hydroxy carboxylic acid is combined with the hydrofluoric acid solution and the subterranean formation is contacted with the resulting acid solution.

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Description

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Claims

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Legal Events

 

• STCH2015
• FP2015
• LAPS2015
• REMI2014
• FPAY2010
• FPAY2006
• I2003
• AS1995
• F1995
• PD1993

Date	Code	Event	Description
Feb 09, 2015	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Jan 14, 2015	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Jan 14, 2015
Jan 14, 2015	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES
Aug 22, 2014	REMI	MAINTENANCE FEE REMINDER MAILED
Jun 22, 2010	FPAY	FEE PAYMENT	year of fee payment: 8
Jun 22, 2006	FPAY	FEE PAYMENT	year of fee payment: 4
Jan 14, 2003	I	Issuance
Aug 24, 1995	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SHUCHART, CHRIS E.;GDANSKI, RICK D.;REEL/FRAME:007646/0441 Owner name: HALLIBURTON COMPANY, OKLAHOMA Effective Date: Aug 24, 1995
Jun 20, 1995	F	Filing
Nov 18, 1993	PD	Priority Date