公开(公告)号：US10202533B2

公开(公告)日：2019-02-12

申请号：US14911114

申请日：2014-04-28

Applicant: ISP INVESTMENTS INC.

Inventor： Janice Jianzhao Wang ,  Mohand Melbouci ,  Jeffrey Lynn ,  Cuiyue Lei ,  Osama M. Musa

IPC: C09K8/12 ,  C09K8/035 ,  C08F226/10 ,  C09K8/512 ,  C09K8/42 ,  C09K8/508 ,  C09K8/528 ,  C09K8/588 ,  C09K8/60 ,  C09K8/68 ,  C09K8/88

Abstract: Stable water based High-Temperature-High-Pressure (HTHP) and/or Non-HTHP crosslinked copolymers for oil and gas applications consist of (i) a crosslinked, linear polyvinyl amide/polymerizable carboxylic acid) copolymer, having a composition, by weight, of 25-75 wt. % of a vinyl amide monomer selected from vinyl pyrrolidone, vinyl caprolactam, N-vinyl-N-methylacetamide and mixtures thereof, and 25-75 wt. % of a polymerizable carboxylic acid monomer selected from acrylic acid, (meth)acrylic acid, crotonic acid, itaconic acid, maleic acid and mixture thereof; and (ii) a crosslinker in an amount of 0.01-5% based on weight of total monomers. Also discloses relevant compositions comprising said copolymer and method of use thereof.

公开(公告)号：US10081757B2

公开(公告)日：2018-09-25

申请号：US14648391

申请日：2013-11-22

Applicant: ISP INVESTMENTS INC.

Inventor： Cuiyue Lei ,  Osama M. Musa

IPC: C09K8/528 ,  C09K8/68 ,  C09K8/52 ,  C08B11/20 ,  C08B15/00 ,  C08B31/12 ,  C08B37/00 ,  C08B37/02 ,  C08B37/08 ,  C09K8/035 ,  C08F299/00 ,  C08L29/04 ,  C08L33/06 ,  C08L33/26

CPC classification number: C09K8/52 ,  C08B11/20 ,  C08B15/00 ,  C08B31/12 ,  C08B37/0018 ,  C08B37/0021 ,  C08B37/003 ,  C08B37/0033 ,  C08B37/0042 ,  C08B37/0045 ,  C08B37/006 ,  C08B37/0069 ,  C08B37/0072 ,  C08B37/0075 ,  C08B37/0096 ,  C08F299/00 ,  C08L29/04 ,  C08L33/064 ,  C08L33/066 ,  C08L33/26 ,  C09K8/035 ,  C09K2208/12 ,  C08L39/06

Abstract: The present invention provides amidic polymers, which exhibit shale swelling inhibitor activity having improved biodegradability. The amidic polymers of the invention may be employed in a wide variety of compositions, particularly in subterranean drilling operations. Non-limiting generic structures of the amidic polymers are set out below: formula (1) wherein R1-R3 and integers m and n are defined herein.