John David Mclennan

Author:

John McLennan

ISBN #:

0950095117

Author:

John Ferguson McLennan

ISBN #:

0226560805

US Patent:

20130118058, May 16, 2013

Filed:

May 10, 2012

Appl. No.:

13/468549

Inventors:

Thu Thi Le Nguyen - Salt Lake City UT, US
John David McLennan - Salt Lake City UT, US
Jacob Issac Abraham - Salt Lake City UT, US
Melisa Saleb Ramallo - Salt Lake City UT, US

International Classification:

C10L 1/18

US Classification:

44302

Abstract:

A biofuel can include a diesel fuel, a plant oil, an alcohol viscosity reducer that is either a mixture of a butanol and a C-Calcohol or solely butanol, and a surfactant present at no more than about 1.0% v/v. The biofuel exists as a clear, stable microemulsion at from about −10 C. to about 70 C. with the cloud point and pour point lower than −10 C.

US Patent:

20190194529, Jun 27, 2019

Filed:

Dec 21, 2018

Appl. No.:

16/229398

Inventors:

- Salt Lake City UT, US
Balakrishnan Nair - Sandy UT, US
John McLennan - Salt Lake City UT, US
Taylor D. Sparks - Salt Lake City UT, US

International Classification:

C09K 8/80
C04B 35/64
C09K 8/584
E21B 43/267

Abstract:

A delivery vehicle is used in a smart proppant platform technology. The delivery vehicle includes a porous substrate and an active agent that interacts with at least one constituent in an operating environment of a target location in which the delivery vehicle is deployed. The active agent changes physical or chemical characteristics of the constituent to facilitate a beneficial effect. A non-polymeric encapsulating coating is maintained until the delivery vehicle reaches the target location, wherein the operating environment of the target location causes the encapsulating coating to dissolve and release the active agent into the operating environment of the target location to facilitate the beneficial effect. In one disclosed example, the proppant is designed to maintain the opening of a hydraulically induced fracture in a subterranean formation, while also allowing for the controlled delivery of active agents. It may be used to enhance the recovery of oils and gases.

US Patent:

20180037810, Feb 8, 2018

Filed:

Jun 2, 2017

Appl. No.:

15/612659

Inventors:

Kyu-Bum Han - Salt Lake City UT, US
John Fuertez - Salt Lake City UT, US
John McLennan - Salt Lake City UT, US
Taylor D. Sparks - Salt Lake City UT, US

International Classification:

C09K 8/80
E21B 43/26
E21B 37/00
E21B 43/267
E21B 43/00

Abstract:

The present disclosure describes proppant materials encapsulated with a polymer encapsulation layer. Proppant particles are formed with a core having relatively larger inner pores and a shell having relatively smaller shell pores. The shell pores and/or inner pores can be loaded with a treatment product, such as a methanogenic microbial consortium capable of converting coal into methane. The polymer encapsulation layer surrounds the shell and provides for sustained time-release of the treatment product when the proppant material has been delivered to a subterranean formation.