Yong Chang

US Patent:

8014987, Sep 6, 2011

Filed:

Apr 2, 2008

Appl. No.:

12/061252

Inventors:

Jahir Pabon - Wellesley MA, US
Nathan Wicks - Somerville MA, US
Yong Chang - Missouri City TX, US
Clinton Chapman - Missouri City TX, US
Vivek Singh - Houston TX, US

Assignee:

Schlumberger Technology Corp. - Houston TX

International Classification:

G06G 7/48

US Classification:

703 10

Abstract:

A method, system and computer program product for performing a drilling operation for an oil field, the oil field having a subterranean formation with geological structures and reservoirs therein. The method involves creating a finite-difference model to simulate behavior of a drilling assembly used to drill a wellbore in the drilling operation, performing a simulation of the drilling operation using the finite-difference model, analyzing a result of the simulation, and selectively modifying the drilling operation based on the analysis.

US Patent:

8180614, May 15, 2012

Filed:

Dec 31, 2008

Appl. No.:

12/346935

Inventors:

Jahir A. Pabon - Newton MA, US
Yong Chang - Missouri City TX, US
Nathaniel Wicks - Somerville MA, US
Richard Harmer - Cheam, GB
Yingyu Fang - Moorhead MN, US
Xiaoyan Shi - Beijing, CN

Assignee:

Schlumberger Technology Corporation - Sugar Land TX

International Classification:

G06F 9/455

US Classification:

703 10, 703 7

Abstract:

Torsional, axial and lateral vibrations introduced when a mud motor is used with a drilling tool to drill a borehole are calculated using a model. The model includes different computational modules for each of three distinct motor sections: power, transmission and bearing. The resulting calculated vibration effects are used to enhance the drilling tool and drilling operation.

US Patent:

20110266056, Nov 3, 2011

Filed:

Oct 28, 2009

Appl. No.:

13/126540

Inventors:

Julian J. Pop - Houston TX, US
Yong Chang - Missouri City TX, US

International Classification:

E21B 47/026
G06G 7/48

US Classification:

175 50, 703 7, 703 6, 703 10

Abstract:

Methods and apparatus for planning and dynamically updating sampling operations while drilling in a subterranean formation are described. An example method of planning a sampling while drilling operation for a subterranean formation includes identifying a plurality of processes and related parameters, the processes including drilling and sampling processes and the related parameters including drilling and sampling parameters. The example method also involves processing the parameters for each of the processes via a simulation engine to generate predictions associated with sampling the formation, the simulation engine including at least one of a wellbore hydraulics simulator, a mudcake simulator, a formation flow simulator, or a tool response simulator. The example method also involves ranking the predictions associated with sampling the formation based on at least one of a sample fluid quality, a sampling process duration, a sampling process efficiency or a cost of sampling, and planning the sampling operation based on the ranked predictions.

US Patent:

20120253679, Oct 4, 2012

Filed:

Mar 23, 2011

Appl. No.:

13/069674

Inventors:

Yong Chang - Missouri City TX, US
Julian J. Pop - Houston TX, US

International Classification:

G06F 19/00
E21B 49/10

US Classification:

702 11, 7315224

Abstract:

Methods of and apparatus to perform a drawdown of a formation fluid in a downhole environment are disclosed. An example method includes contacting a borehole wall with a fluid communication device of a formation testing tool and performing a first type of drawdown to draw fluid into the fluid communication device. The method also includes detecting a breach of a mudcake on the borehole wall during performance of the first type of drawdown and performing a second type of drawdown to draw fluid into the sample probe in response to detecting the breach of the mudcake. The second type of drawdown is different than the first type of drawdown. Furthermore, the example method includes confirming the breach of the mudcake on the borehole wall during performance of the second type of drawdown.

US Patent:

20130246029, Sep 19, 2013

Filed:

Mar 15, 2013

Appl. No.:

13/834034

Inventors:

Jahir Pabon - Newton MA, US
Yong Chang - Missouri City TX, US
Shunfeng Zheng - Katy TX, US

Assignee:

Schlumberger Technology Corporation - Sugar Land TX

International Classification:

G06F 17/50

US Classification:

703 10

Abstract:

A method of estimating extended reach for a downhole line traversing a deviated section of a well. The method may include storing line and well architectural and physical data and then performing a static analysis of substantially axial-exclusive estimated friction between the line and well wall during conveyance (which may be thought of as the contact force due to interference therebetween). A one dimensional dynamic analysis may then be performed. Thus, based on these factors, speed of the conveyance, vibration parameters of an incorporated vibration tool, etc., an efficient simulation of the conveyance may be run.

US Patent:

20190145254, May 16, 2019

Filed:

Jan 15, 2019

Appl. No.:

16/248097

Inventors:

- Sugar Land TX, US
Yong Chang - Sugar Land TX, US
Ashers Partouche - Katy TX, US
Sylvain Bedouet - Houston TX, US

International Classification:

E21B 49/08
E21B 47/12

Abstract:

An inlet for a single packer, having at least one sample inlet and at least one guard inlet surrounding the periphery of the at least one sample inlet, wherein the at least one sample inlet has at least one side that is parallel to another side of the at least one sample inlet and the at least one sample inlet has at least two rounded ends connecting each of the parallel sides, and the at least one guard inlet has at least one side that is parallel to another side of the at least one guard inlet and the at least one guard inlet has at least two rounded ends connecting each of the parallel side of the guard inlet.

US Patent:

20170152743, Jun 1, 2017

Filed:

Dec 1, 2015

Appl. No.:

14/956338

Inventors:

- Sugar Land TX, US
Kai Hsu - Sugar Land TX, US
Yong Chang - Sugar Land TX, US
Youxiang Zuo - Burnaby, CA
Ryan Sangjun Lee - Sugar Land TX, US
Ashers Partouche - Katy TX, US

International Classification:

E21B 49/08
G01N 1/14
E21B 49/10

Abstract:

A method includes operating a downhole acquisition tool including a guard probe and a sample probe in a wellbore that contains a fluid that includes a native reservoir fluid and a contaminant. The method also includes receiving a first portion of fluid into the guard probe and a second portion of fluid into the sample probe, estimating a contamination level of the first or second portions based on a fluid property of the respective first and second portions, determining an initial guard flow rate of the first portion, determining an initial sample flow rate of the second portion, using a processor to adjust a guard flow rate of the second portion over pump time after the contamination level of the first portion is at or below a contamination level threshold, and adjust a sample flow rate of the first portion based on the adjusted guard flow rate and total flowrate.

US Patent:

20160130940, May 12, 2016

Filed:

Nov 6, 2014

Appl. No.:

14/534813

Inventors:

- Sugar Land TX, US
Adriaan Gisolf - Houston TX, US
Youxiang Zuo - Burnaby, CA
Yong Chang - Sugar Land TX, US
Beatriz E. Barbosa - Houston TX, US

International Classification:

E21B 49/08
E21B 47/00

Abstract:

Embodiments of the disclosure can include systems and methods for formation fluid sampling. In one embodiment, a method can include monitoring a relationship between a first characteristic of a formation fluid extracted from a formation and a second characteristic of the formation fluid extracted from the formation, determining, based at least in part on the monitoring, that a linear trend is exhibited by the relationship between the first characteristic of the formation fluid extracted from the formation and the second characteristic of the formation fluid extracted from the formation, and determining a reservoir fluid breakthrough based at least in part on the identification of the linear trend, wherein the reservoir fluid breakthrough is indicative of virgin reservoir fluid entering a sampling tool.

Address:

4710 Norsworthy Dr, Sugar Land, TX 77479

VIN:

JHLRE38397C061626

Make:

HOND

Model:

CRV

Year:

2007