公开(公告)号：US11236281B2

公开(公告)日：2022-02-01

申请号：US16801374

申请日：2020-02-26

Applicant: CHEVRON U.S.A. INC.

Inventor： Estrella Rogel ,  Kyle Matthew Hench ,  Christopher J. Wilson ,  David A. Dahlin ,  Michael Moir

IPC: C10L1/12 ,  C10L1/04

Abstract: Low sulfur marine fuel compositions and methods for making the same are provided. The compositions exhibit a sulfur content of at most 0.50 wt. %, a solvent power of at least 0.30, and a P-value of at least 1.15.

公开(公告)号：US10907473B2

公开(公告)日：2021-02-02

申请号：US15811972

申请日：2017-11-14

Applicant: Chevron U.S.A. Inc.

Inventor： Estrella Rogel ,  Cesar Ovalles ,  Michael Moir

IPC: E21B37/06 ,  E21B49/08

Abstract: A method includes analyzing a carbonaceous deposit for an asphaltene content from a hydrocarbon-containing fluid located in a well, a wellhead or a production line proximate the wellhead, and applying one or more preventative measures to the hydrocarbon-containing fluid located in the well, the wellhead or the production line proximate the wellhead based on the asphaltene content.

公开(公告)号：US20190145255A1

公开(公告)日：2019-05-16

申请号：US15811972

申请日：2017-11-14

Applicant: Chevron U.S.A. Inc.

Inventor： Estrella Rogel ,  Cesar Ovalles ,  Michael Moir

IPC: E21B49/08 ,  E21B37/06

Abstract: Disclosed herein is a method for analyzing a carbonaceous deposit for an asphaltene content from a hydrocarbon-containing fluid located in a well, a wellhead or a production line proximate the wellhead, and applying one or more preventative measures to the hydrocarbon-containing fluid located in the well, the wellhead or the production line proximate the wellhead based on the asphaltene content.