David A Perkins

US Patent:

8629984, Jan 14, 2014

Filed:

Jan 7, 2013

Appl. No.:

13/736009

Inventors:

David L. Perkins - The Woodlands TX, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

G01N 21/55

US Classification:

356445, 356413, 356319, 356310

Abstract:

A system and a method for real-time processing and monitoring, the system including a light source to provide an illumination light and a calibration light are provided. The system includes an optical element to separate the illumination light and the calibration light; an optical element to direct the illumination light to a sample; an optical element to direct the calibration light to a first detector and a second detector; an optical element to collect light backscattered from the sample; an optical element to separate light backscattered from the sample into a first scattered light portion and a second scattered light portion; an optical element to direct the first scattered light portion through at least one multivariate optical element to the first detector; and an optical element to direct the second scattered light portion to the second detector.

US Patent:

20200141874, May 7, 2020

Filed:

Sep 19, 2016

Appl. No.:

15/533370

Inventors:

- Houston TX, US
David L. PERKINS - The Woodlands TX, US
Christopher Michael JONES - Katy TX, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

G01N 21/77
G01N 33/28
G01N 27/12
E21B 49/08

Abstract:

The present application relates sensing reactive components in fluids by monitoring band gap changes to a material having interacted with the reactive components via physisorption and/or chemisorption. In some embodiments, the sensors of the present disclosure include the material as a reactive surface on a substrate. The band gap changes may be detected by measuring conductance changes and/or spectroscopic changes. In some instances, the sensing may occur downhole during one or more wellbore operations like drilling, hydraulic fracturing, and producing hydrocarbons.

US Patent:

20190195663, Jun 27, 2019

Filed:

Feb 2, 2016

Appl. No.:

16/068089

Inventors:

- Houston TX, US
David L. PERKINS - The Woodlands TX, US
Xinwei LAN - Houston TX, US

International Classification:

G01D 5/353
E21B 49/08

Abstract:

A device for fluid analysis including an integrated computational element (ICE), a sample cell that optically interacts the ICE with a sample to generate a computation light associated with a characteristic of the sample, and a fiber sensor that receives the computation light and converts the computation light into a heat, is provided. The fiber sensor is coupled with a detector through an optical link, and is configured to return a portion of probe light through the optical link to the detector based on the heat converted. A method for using the device for performing fluid analysis is provided. A system for fluid analysis including at least one device as above is also provided.

US Patent:

20190094131, Mar 28, 2019

Filed:

Nov 27, 2018

Appl. No.:

16/201305

Inventors:

- Houston TX, US
David L. Perkins - The Woodlands TX, US

International Classification:

G01N 21/23
G02B 5/30
G01N 21/31
G01B 11/06

Abstract:

A method of monitoring a substance includes optically interacting at least one birefringent integrated computational element with at least the substance and a polarizer, thereby generating optically interacted light. The polarizer is being configured to generate at least x polarized light and y polarized light. The method includes receiving the optically interacted light with at least one detector. The method includes generating with the at least one detector output signals corresponding to at least two characteristics of the substance.

US Patent:

20190025122, Jan 24, 2019

Filed:

Apr 14, 2016

Appl. No.:

15/538138

Inventors:

- Houston TX, US
James M. Price - The Woodlands TX, US
David L. Perkins - The Woodlands TX, US

International Classification:

G01J 3/26
G01V 8/02
G01J 3/28

Abstract:

Fabry-Perot based optical computing devices and temperature sensors are disclosed for a number of applications including, for example, in-situ downhole fluid analysis and temperature detection.

US Patent:

20190011360, Jan 10, 2019

Filed:

Sep 13, 2018

Appl. No.:

16/130537

Inventors:

- Houston TX, US
David L. Perkins - The Woodlands TX, US

International Classification:

G01N 21/3577
C25D 9/04
E21B 49/08
C25D 5/48
C25D 5/52
C25D 7/00
G01N 21/39
G01N 33/28
C25D 5/10

Abstract:

A multilayered film for performing spectroscopic measurements in a fluid are provided. The multilayered film includes a substrate; a porous layer adjacent to the substrate; and a reflective layer formed on the porous layer, wherein the porous layer selectively allows a component of a fluid to be optically measured when the multilayered film is immersed in the fluid. A sensor for spectroscopic measurements in crude oil samples including a multilayered film as above is also provided. A method of manufacturing a multilayered film for spectroscopic measurements in fluids as above is also provided.

US Patent:

20180334904, Nov 22, 2018

Filed:

Oct 10, 2016

Appl. No.:

15/777139

Inventors:

- Houston TX, US
David L. Perkins - The Woodlands TX, US
James M. Price - The Woodlands TX, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

E21B 49/08
G02B 1/18
G02B 1/11
G01V 8/02
G01N 21/55

Abstract:

An optical device provided to interrogate a fluid sample. The optical device includes a light source configured to provide an light, an optical interface configured to allow the light to pass through to interact with the fluid sample, and a multi-scale ommatidial array (MO A) applied to the optical interface.

US Patent:

20180299372, Oct 18, 2018

Filed:

Jun 20, 2018

Appl. No.:

16/013030

Inventors:

- Houston TX, US
David L. Perkins - The Woodlands TX, US
Li Gao - Katy TX, US

International Classification:

G01N 21/31
G01N 21/25
G01V 8/00
G01J 3/433

Abstract:

A system and method are disclosed for configuring an integrated computational element (ICE) to measure a property of a sample of interest. The system includes an illumination source to provide a sample light which is reflected from or transmitted through a sample. A dispersive element disperses the sample light into wavelength portions. An intensity modulation device having an array of electronically controllable modulation elements is disclosed that forms a pattern which modulates the dispersed sample light. Collection optics focuses the modulated sample light on a detector, which generates a signal that correlates to a property of the sample. The electronically controllable modulation elements can be readily altered to conform to a different measurable property of a sample of interest as desired.