公开(公告)号：US10883040B2

公开(公告)日：2021-01-05

申请号：US15790278

申请日：2017-10-23

Applicant: ExxonMobil Research and Engineering Company

Inventor： Aditya Jaishankar ,  Mohsen S. Yeganeh ,  Jessica L. Vreeland ,  Daniel P. Cherney

IPC: C09K8/588 ,  E21B43/16 ,  C09K8/584

Abstract: Viscous aqueous injections fluids including polymers having hydrophilic moieties and hydrophobic groups and at least one of crude oil emulsions and amphiphilic diblock copolymers are provided herein. Methods of making the aqueous injection fluids, and methods of using the aqueous injection fluids for oil recovery are also provided.

公开(公告)号：US10883055B2

公开(公告)日：2021-01-05

申请号：US15935471

申请日：2018-03-26

Applicant: ExxonMobil Research and Engineering Company

Inventor： Aruna Mohan ,  Mohsen S. Yeganeh ,  Daniel P. Cherney ,  Anthony S. Mennito ,  Shane P. Deighton ,  Jessica L. Vreeland

IPC: C10G53/12 ,  E21B43/20 ,  C09K8/584

Abstract: A method for selective extraction of naphthenic acids from an acidic crude oil, including: providing an acidic crude oil including naphthenic acids and having a total acid number (TAN) greater than 0.4; mixing the acidic crude oil with a first aqueous solution including water and a weak base to extract a portion of naphthenic acids from the acidic crude oil thereby creating a second aqueous solution containing a mixture of the portion of naphthenic acids, the water and the weak base in an emulsion; separating the second aqueous solution from the emulsion; wherein the second aqueous solution contains an additional portion of the acidic crude oil; adding a salt to the second aqueous solution, thereby causing the additional portion of the acidic crude oil to separate from the second aqueous solution; removing the additional portion of the acidic crude oil from the second aqueous solution; and extracting the portion of the naphthenic acids from the second aqueous solution.

公开(公告)号：US10883039B2

公开(公告)日：2021-01-05

申请号：US15790254

申请日：2017-10-23

Applicant: ExxonMobil Research and Engineering Company

Inventor： Aditya Jaishankar ,  Mohsen S. Yeganeh ,  Alex G. K. Lee ,  Daniel P. Cherney ,  Mobae Afeworki ,  Sartaj S. Ghai

IPC: C09K8/588 ,  E21B43/16 ,  C09K8/584

Abstract: Viscous aqueous injections fluids including polymers having hydrophilic moieties and hydrophobic groups and at least one of crude oil emulsions and amphiphilic diblock copolymers are provided herein. Methods of making the aqueous injection fluids, and methods of using the aqueous injection fluids for oil recovery are also provided.