Bryan W Dotson

US Patent:

7789142, Sep 7, 2010

Filed:

Jul 31, 2008

Appl. No.:

12/221094

Inventors:

Bryan D. Dotson - Houston TX, US

Assignee:

BP Corporation North America Inc. - Warrenville IL

International Classification:

E21B 43/12

US Classification:

16625015, 166370, 417 40, 417411

Abstract:

Methods and systems for removing water from gas wells are described herein. The water is removed by positioning a pump in a liquid layer below the perforations through which gas enters a gas well and powering a water pump with electrical power generated by an energy recovery system which produces electricity from a gas flow through the energy recovery system to an earth surface.

US Patent:

20110155378, Jun 30, 2011

Filed:

Dec 21, 2010

Appl. No.:

12/974760

Inventors:

Jaime Cabanilla - Katy TX, US
Bryan D. Dotson - Houston TX, US

Assignee:

BP CORPORATION NORTH AMERICA INC. - Warrenville IL

International Classification:

E21B 43/00

US Classification:

166309

Abstract:

Systems and methods for optimizing injection of a foaming composition into a well for deliquification are disclosed herein. Embodiments of the method generally comprise injecting a foaming composition into a well to deliquify the well. The method may further comprise measuring the foaming properties of the produced fluids from the well. In addition, the method may comprise correlating the foaming properties of the produced fluids to production rate and then adjusting the injection rate of the foaming composition in light of the results of the analysis.

US Patent:

20120158310, Jun 21, 2012

Filed:

Dec 15, 2011

Appl. No.:

13/327182

Inventors:

John R. Adams - Katy TX, US
Siyavash Motealleh - Houston TX, US
Herbert M. Sebastian - Cypress TX, US
Yuanlin Jiang - Katy TX, US
Bryan Dotson - Houston TX, US

Assignee:

BP CORPORATION NORTH AMERICA INC. - Houston TX

International Classification:

G06F 19/00
G01V 9/02

US Classification:

702 13, 702 12

Abstract:

A new approach is disclosed for measuring the pressure of tight gas reservoirs, using information obtain from continuous injection prior to hydraulic fracture stimulation. The technique can be obtained utilizing either bottom-hole or surface pressure gauges and properly instrumented surface injection pumps. The analysis is completed by plotting injection and rate data in a specialized form from terms arranged in Darcy's radial flow equation to obtain a curve or trend. The key component to proper application of this technique is to obtain both baseline and one or more calibration data sets. These calibration data sets are obtained by either increasing or decreasing the injection pressure and/or rate from the baseline data. Initial reservoir pressure is assumed, but the calibration data indicates if the guess was too high or low. Accurate estimates of reservoir pressure may be obtained in a few iterations.

US Patent:

7546870, Jun 16, 2009

Filed:

May 8, 2008

Appl. No.:

12/117003

Inventors:

Bryan D. Dotson - Houston TX, US

Assignee:

BP Corporation North America Inc. - Warrenville IL

International Classification:

E21B 43/00

US Classification:

166105, 417 46, 417904

Abstract:

A method and system for the removal of produced liquid from a gas well extending from an earth surface through a subterranean gas-bearing formation using a thermodynamic cycle.

US Patent:

20210087922, Mar 25, 2021

Filed:

Sep 21, 2020

Appl. No.:

17/026872

Inventors:

- Houston TX, US
Ivan GIL - Katy TX, US
Laryssa Petry LIGOCKI - Richmond TX, US
Bryan DOTSON - Houston TX, US

Assignee:

BP Corporation North America Inc. - Houston TX

International Classification:

E21B 47/06
E21B 47/12
E21B 43/26
G06N 3/08
G06K 9/62

Abstract:

A system for stimulating a well extending through a subterranean earthen formation includes a surface pump configured to pressurize a well stimulation fluid to a current surface pressure measurable by a surface sensor package, a well stimulation line extending between the surface pump and a wellhead positioned at an upper end of the well, wherein the well stimulation line is configured to flow the well stimulation fluid into the well, and a monitoring system in signal communication with the surface sensor package and including a screen-out predictor module stored in a memory of the monitoring system, wherein the screen-out predictor module is configured to predict a future surface pressure of the well stimulation fluid based on the current surface pressure measured by the surface sensor package, and wherein the monitoring system is configured to provide an indication of the predicted future surface pressure of the well stimulation fluid.

US Patent:

20160003026, Jan 7, 2016

Filed:

Sep 17, 2015

Appl. No.:

14/857183

Inventors:

- Houston TX, US
Siyavash Motealleh - Houston TX, US
Herbert M. Sebastian - Cypress TX, US
Yuanlin Jiang - Katy TX, US
Bryan Dotson - Houston TX, US

Assignee:

BP CORPORATION NORTH AMERICA, INC. - Houston TX

International Classification:

E21B 47/00
E21B 43/12
E21B 47/06

Abstract:

A well test method for use in tight gas reservoirs prior to hydraulic fracture stimulation. The method can use injection of water using low-rate surface pumps into the reservoir below parting pressure. The measured rates and pressures are converted to sandface rate and pressure datasets for each stage. The technique can utilize either surface or bottom-hole pressure sensors. The resulting sandface datasets are analyzed using the baseline/calibration method or other analysis appropriate to stage data to determine reservoir flow properties. The small-volume, staged well test enables estimation of the flow properties of reservoir, including pressure and permeability, in hours rather than days.