Yi Xin Chen

US Patent:

20180004863, Jan 4, 2018

Filed:

Jun 29, 2016

Appl. No.:

15/196128

Inventors:

- Sugar Land TX, US
Shu Pan - Edmonton, CA
Yi Chen - Sugar Land TX, US
Kang Wang - Beijing, CN
Oliver C. Mullins - Houston TX, US

International Classification:

G06F 17/50
G06F 17/11

Abstract:

A method includes placing a downhole acquisition tool in a wellbore in a geological formation containing a reservoir fluid. The method includes performing downhole fluid analysis using the downhole acquisition tool to determine at least one measurement of the reservoir fluid. The method includes using a processor to estimate at least one fluid component property by using an equation of state based at least in part on the at least one measurement of the reservoir fluid and to simulate a diffusion process using a diffusion model that takes into account the at least one estimated fluid property to generate a composition path. The method includes using a processor to estimate one or more phase envelopes based in part on the at least one fluid property and compare the one or more phase envelopes with the composition path. The method includes outputting a visualization identify potential areas of asphaltene instability.

US Patent:

20170363077, Dec 21, 2017

Filed:

Jun 15, 2016

Appl. No.:

15/183432

Inventors:

- Sugar Land TX, US
Youxiang Zuo - Burnaby, CA
Yi Chen - Sugar Land TX, US

International Classification:

F04B 49/06
E21B 43/12
F04B 49/22
G05B 19/416
F04B 47/02
F04B 53/14
E21B 49/08
E21B 47/00
E21B 47/18

Abstract:

First piston position data of a piston in a displacement unit is obtained based on an output signal from a sensor associated with the displacement unit, the output signal being dependent upon a physical position of the piston in the displacement unit. Second piston position data of the piston in the displacement unit is obtained based on data indicative of a number of revolutions of a hydraulic motor in a hydraulic system, the hydraulic system being operable to drive the piston of the displacement unit. Based on the second piston position data, a flow rate of a fluid pumped by the displacement unit is estimated. A system correction factor is generated based on the first piston position data and the second piston position data. The estimated flow rate is adjusted based on the system correction factor.

US Patent:

20170016321, Jan 19, 2017

Filed:

Sep 29, 2016

Appl. No.:

15/279828

Inventors:

- Sugar Land TX, US
Youxiang Zuo - Burnaby, CA
Yi Chen - Sugar Land TX, US
Kang Wang - Beijing, CN
Oliver C. Mullins - Houston TX, US

International Classification:

E21B 49/10

Abstract:

A downhole tool, surface equipment, and/or remote equipment are utilized to obtain data associated with a subterranean hydrocarbon reservoir, fluid contained therein, and/or fluid obtained therefrom. At least one condition indicating that a density inversion exists in the fluid contained in the reservoir is identified from the data. Molecular sizes of fluid components contained within the reservoir are estimated from the data. A model of the density inversion is generated based on the data and molecular sizes. The density inversion model is utilized to estimate the density inversion amount and depth and time elapsed since the density inversion began to form within the reservoir. A model of a gravity-induced current of the density inversion is generated based on the data and the density inversion amount, depth, and elapsed time.

US Patent:

20160146004, May 26, 2016

Filed:

Nov 19, 2015

Appl. No.:

14/945800

Inventors:

- Sugar Land TX, US
Youxiang Zuo - Burnaby, CA
Yi Chen - Sugar Land TX, US
Oliver C. Mullins - Houston TX, US

International Classification:

E21B 49/08
G01V 99/00

Abstract:

The present disclosure relates to a method for characterizing a hydrocarbon reservoir of interest traversed by at least one wellbore that includes (a) using a numerical model to simulate over geological time a non-equilibrium concentration of an asphaltene component as a function of location within the wellbore, (b) analyzing fluid samples acquired from at least one wellbore that traverses the reservoir of interest to measure concentration of the asphaltene component as a function of location within the wellbore, (c) comparing the non-equilibrium concentration of the asphaltene component as a function of location within the wellbore resulting from the simulation of (a) to the concentration of the asphaltene component as a function of location within the wellbore as measured in (b), and characterizing the reservoir of interest based upon the comparing of (c).