Foam stabilizer composition, foamed cement slurry and additive composition thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9624420
SERIAL NO

15296908

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present invention relates to the field of oil and natural gas well cementation engineering, in particular to a foam stabilizer composition, foamed cement slurry and an additive composition thereof. The foam stabilizer composition comprises C6-C20 alkyl amido alkyl amine oxide, C6-C20 alkyl amido alkyl betaine, and triterpenoid saponin compound. The foam stabilizer composition provided in the present invention is helpful for forming foamed cement slurry that has high foam stability, and the foam stabilizer composition can work with other active components in the foamed slurry additive composition provided in the present invention to enable the foamed cement slurry that contains the additive composition to obtain low density, high foam stability, low permeability, and high compressive strength, which is especially applicable to well cementing operation in an oil and natural gas exploration and development process.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)266580 NO 66 CHANGJIANG WEST ROAD HUANGDAO DISTRICT QINGDAO SHANDONG QINGDAO CITY SHANDONG PROVINCE 266580

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sun, Baojiang Shandong, CN 25 26
Wang, Chengwen Shandong, CN 6 12
Wang, Ruihe Shandong, CN 4 1
Zhou, Weidong Shandong, CN 66 614

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
11.5 Year Payment $7400.00 $3700.00 $1850.00 Oct 18, 2028
Fee Large entity fee small entity fee micro entity fee
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