公开(公告)号：US10184076B2

公开(公告)日：2019-01-22

申请号：US14772795

申请日：2014-03-04

Applicant: SHELL OIL COMPANY

Inventor： Julian Richard Barnes ,  James Laurel Buechele ,  Hendrik Dirkzwager ,  Willem Johan Louis Genuit ,  Jeremiah Michael Purcell ,  Catherine Semien ,  Carmen Geraldine Reznik

IPC: E21B43/16 ,  C09K8/58 ,  C09K8/12 ,  C09K8/24 ,  C09K8/68 ,  C09K8/88 ,  C07C309/20 ,  C08F220/56 ,  C08F220/38

Abstract: The present invention provides an internal olefin sulfonate composition, comprising water and an internal olefin sulfonate mixture having an average carbon number of at least 20, wherein the internal olefin sulfonate mixture comprises hydroxy sulfonates and alkene sulfonates in a weight ratio of hydroxy sulfonates to alkene sulfonates of at least 3.25. The invention further provides a method of treating a crude oil containing formation.

公开(公告)号：US10144863B2

公开(公告)日：2018-12-04

申请号：US15313152

申请日：2015-05-21

Applicant: SHELL OIL COMPANY

Inventor： Julian Richard Barnes ,  Hendrik Dirkswager ,  Carmen Geraldine Reznik ,  Sonja Geib ,  Sjoerd Reindert Van Kuijk ,  James Laurel Buechele

IPC: C09K8/584 ,  G06F17/11

Abstract: The present invention provides a method for predicting the optimal salinity of individual members of a class of internal olefin sulfonate compositions in a mixture containing the individual member, a brine and hydrocarbons, wherein the internal olefin sulfonate compositions comprise a mixture containing hydroxy alkane sulfonates and alkene sulfonates. The invention further provides use of the weight ratio of hydroxy alkane sulfonates to alkene sulfonates in an internal olefin sulfonate composition to predict the optimal salinity of the surfactant composition in a mixture of the surfactant composition, a brine and an oil.