公开(公告)号：US10995352B2

公开(公告)日：2021-05-04

申请号：US16870910

申请日：2020-05-09

Applicant: ExxonMobil Research and Engineering Company

Inventor： Partha Nandi ,  Xiaozhou Zhang ,  Mohor Chatterjee ,  Vera Grankina ,  Changyub Paek ,  Fang Cao

IPC: C12P19/12 ,  C12P7/06 ,  C12N1/16 ,  C12P5/02 ,  C12P7/16

Abstract: The present disclosure relates to glycolipid compositions, methods for making glycolipid compositions, and their uses thereof. Glycolipid compositions can be prepared via yeast-mediated catalyzed reaction, and exhibit excellent surfactant properties having high corrosion inhibition performance, good reducing surface tension efficiency. Processes of the present disclosure can provide glycolipid compositions having one or more of: a ratio of lactonic glycolipids to glycolipid acylic esters is from about 1:10 to about 10:1, a molecular weight of from about 400 g/mol to about 10,000 g/mol, a corrosion rate of carbon steel from about 0.5 MPY to about 100 MPY at room temperature and at pH 4-6. Furthermore, aqueous solutions of the glycolipid compositions of the present disclosure can have a surface tension of from about 20 mN/m to about 80 mN/m.

公开(公告)号：US20200033315A1

公开(公告)日：2020-01-30

申请号：US16520641

申请日：2019-07-24

Applicant: ExxonMobil Research and Engineering Company

Inventor： Fang Cao ,  Shuji Luo ,  Marcia E. Dierolf ,  Yunlong Zhang

IPC: G01N33/28 ,  G01N33/18 ,  G01N31/12

Abstract: Methods for determining nitrogen and/or sulfur containing surfactant residual concentrations in oil and/or water phases of an oil and water system, particularly produced oil and water from an oil or gas well, are provided. The methods utilize pyro-chemiluminescence/pyro-fluorescence techniques which quantify the total residual surfactants in both oil and water phases. The methods may be applied broadly in areas where quantifying or monitoring surfactant concentrations in solution is required.

公开(公告)号：US20200377916A1

公开(公告)日：2020-12-03

申请号：US16870910

申请日：2020-05-09

Applicant: ExxonMobil Research and Engineering Company

Inventor： Partha Nandi ,  Xiaozhou Zhang ,  Mohor Chatterjee ,  Vera Grankina ,  Changyub Paek ,  Fang Cao

IPC: C12P19/12 ,  C12P7/06 ,  C12P7/16 ,  C12P5/02 ,  C12N1/16

Abstract: The present disclosure relates to glycolipid compositions, methods for making glycolipid compositions, and their uses thereof. Glycolipid compositions can be prepared via yeast-mediated catalyzed reaction, and exhibit excellent surfactant properties having high corrosion inhibition performance, good reducing surface tension efficiency. Processes of the present disclosure can provide glycolipid compositions having one or more of: a ratio of lactonic glycolipids to glycolipid acylic esters is from about 1:10 to about 10:1, a molecular weight of from about 400 g/mol to about 10,000 g/mol, a corrosion rate of carbon steel from about 0.5 MPY to about 100 MPY at room temperature and at pH 4-6. Furthermore, aqueous solutions of the glycolipid compositions of the present disclosure can have a surface tension of from about 20 mN/m to about 80 mN/m.

公开(公告)号：US20210230478A1

公开(公告)日：2021-07-29

申请号：US17147631

申请日：2021-01-13

Applicant: ExxonMobil Research and Engineering Company

Inventor： Fang Cao ,  Yao Xiong ,  James D. Oxley ,  Wei Li ,  Satish Bodige ,  Abhimanyu O. Patil ,  Harry W. Deckman

IPC: C09K8/92 ,  C09K8/54 ,  C09K8/60 ,  C09K8/52 ,  E21B37/06 ,  E21B41/02

Abstract: Particulate compositions including a plurality of particles containing oil field chemicals encapsulated in a water soluble, water swellable, or water degradable matrix material are disclosed. The oil field chemicals may be corrosion inhibitors and the particulate composition may be prepared by spray drying mixtures of matrix material and oil field chemicals. The particulate compositions are designed to efficiently deliver the chemicals to the water phase of a multiphase environment, such as an oil/water environment.

公开(公告)号：US20200150025A1

公开(公告)日：2020-05-14

申请号：US16660880

申请日：2019-10-23

Applicant: ExxonMobil Research and Engineering Company

Inventor： Fang Cao ,  Yao Xiong ,  David S. Fischer ,  Jorge L. Pacheco

IPC: G01N17/00 ,  G01N23/2251 ,  G01N33/204 ,  C22C38/00

Abstract: Carbon steels are desirable for many applications due to their hardness and low cost. Susceptibility toward corrosion can complicate the use of carbon steels, and there is presently no ready way to predict susceptibility toward corrosion for a given carbon steel under a particular set of corrosive conditions. Methods for predicting susceptibility toward corrosion and determining the suitability of a carbon steel may comprise: obtaining a group of carbon steel samples, each carbon steel sample having an unknown rate of corrosion and a microstructure; measuring a quantity of carbides within the microstructure of each carbon steel sample having an unknown rate of corrosion; and determining a relative order of susceptibility toward corrosion within the group of carbon steel samples based upon the quantity of carbides within the microstructure of each carbon steel sample.

公开(公告)号：US20200063028A1

公开(公告)日：2020-02-27

申请号：US16542772

申请日：2019-08-16

Applicant: ExxonMobil Research and Engineering Company

Inventor： Fang Cao ,  Mohsen S. Yeganeh ,  Yao Xiong ,  David S. Fischer ,  Aruna Mohan ,  Wei Li

IPC: C09K8/92 ,  C09K8/54 ,  C09K8/60 ,  E21B41/02

Abstract: Capsules, systems and methods for delivering chemical components to multiphase environments are disclosed. The systems and methods utilize delivery capsules within which the chemical components are encapsulated. The chemical components may be corrosion inhibitors or biocides and the multiphase environment an oil/water environment, for example, within an oil transport pipeline. The systems and methods allow delivery of the capsules to targeted areas of the multiphase environment, for example, to a water phase or a water/metal interface.

公开(公告)号：US20200165509A1

公开(公告)日：2020-05-28

申请号：US16672152

申请日：2019-11-01

Applicant: ExxonMobil Research and Engineering Company

Inventor： Xiaozhou Zhang ,  Dennis R. Enning ,  Meytal B. Higgins ,  Jaspreet Mand ,  Fang Cao ,  Giovanni Pilloni ,  Mohor Chatterjee

IPC: C09K8/54 ,  C09K8/536

Abstract: Provided are methods for diagnosing, monitoring and mitigating microbiologically influenced corrosion (MIC). The methods employ steps to determine the nature and concentration of biological signatures, formed through metabolism of microorganisms, and correlating the biological signatures with MIC. Based on such analyses, appropriate MIC mitigation strategies may be implemented so as to efficiently target MIC at sites of interest. The methods advantageously allow selection of appropriate MIC mitigation treatments that correspond to the level of severity of the MIC and based on historical data correlating particular biological signatures with particular MIC risk.