公开(公告)号：WO2018122570A1

公开(公告)日：2018-07-05

申请号：PCT/IB2016/001980

申请日：2016-12-30

Applicant: STEPAN EUROPE S.A.S. ,  M-I L.L.C. ,  SCHLUMBERGER NORGE AS

Inventor： COLE, Rachael Anne ,  DESHPANDE, Pradyumna Avinash ,  KHANDEKAR, Chandrashekhar Yeshwant ,  NORDVIK, Tore ,  REGNAULT DE LA MOTHE, Loic ,  SHAW, Elodie ,  CANAL, Laure ,  DUGAND, Marine ,  SANTIAGO, José

IPC: C09K8/524

Abstract: Compositions may include those of the formula: (I) wherein R1 is an alkyl chain having a carbon number in the range of greater than 40 to 200, R2 is a multiester, R3 is hydrogen, an ion, or an alkyl chain having a carbon number in the range of 1 to 200, m is an integer selected from 0 to 4, and n is an integer selected from the range of 0 to 4, wherein the sum of m and n is 1 or greater. Compositions may include a reaction product of a polyisobutylene-substituted succinic anhydride and a hydroxy- functional dendrimer, wherein the molar ratio of polyisobutylene-substituted succinic anhydride to hydroxy-functional dendrimer is within the range of 10: 1 to 30: 1.

公开(公告)号：WO2018126218A1

公开(公告)日：2018-07-05

申请号：PCT/US2017/069109

申请日：2017-12-29

Applicant: M-I L.L.C. ,  SCHLUMBERGER NORGE AS

Inventor： COLE, Rachael, Anne ,  DESHPANDE, Pradyumna, Avinash ,  KHANDEKAR, Chandrashekhar, Yeshwant ,  NORDVIK, Tore ,  REGNAULT DE LA MOTHE, Loic ,  SHAW, Elodie ,  CANAL, Laure ,  DUGAND, Marine ,  SANTIAGO, José

IPC: C09K8/524 ,  C10L3/10 ,  C08F220/28 ,  C08G83/00 ,  C08L101/00

Abstract: Methods may include emplacing into a hydrocarbon production stream a composition containing an asphaltene inhibitor, wherein the asphaltene inhibitor includes the formula (I) wherein R1 is an alkyl chain having a carbon number in the range of greater than 40 to 200, R2 is a multiester group, R3 is hydrogen, an ion, or an alkyl chain having a carbon number in the range of 1 to 200, m is an integer selected from 0 to 4, and n is an integer selected from the range of 0 to 4, wherein the sum of m and n is 1 or greater. Methods may also include emplacing in a wellbore a composition containing an asphaltene inhibitor, wherein the asphaltene inhibitor comprises esters of the formula (I) wherein R1 is an alkyl chain having a carbon number in the range of greater than 40 to 200; R2 is a multiester group; is hydrogen, an ion, or an alkyl chain having a carbon number in the range of 1 to 200; m is an integer selected from 0 to 4; and n is an integer selected from the range of 0 to 4, wherein the sum of m and n is 1 or greater.