Wellbore fluid

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9574127
APP PUB NO 20150021027A1
SERIAL NO

14127153

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present invention provides a wellbore fluid, such as a drilling, completion or workover fluid, said wellbore fluid comprising a glucomannan additive. Further provided is a method of forming a gel plug from the wellbore fluid, a method of modifying the properties of a wellbore fluid, a method of drilling a subterranean hole with such a fluid and the use of glucomannan in wellbore fluids.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
M-I DRILLING FLUIDS UK LTDWESTHILL INDUSTRIAL ESTATE WESTHILL ABERDEEN SCOTLAND AB32 6TQ

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chapman, John W Stonehaven, GB 12 85

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Aug 21, 2020
7.5 Year Payment $3600.00 $1800.00 $900.00 Aug 21, 2024
11.5 Year Payment $7400.00 $3700.00 $1850.00 Aug 21, 2028
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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