Daniel C Shannon

US Patent:

20210237100, Aug 5, 2021

Filed:

Apr 26, 2021

Appl. No.:

17/239924

Inventors:

- Houston TX, US
Daniel E. Shannon - Houston TX, US

International Classification:

B03D 1/14
B03D 1/006

Abstract:

Flotation separation apparatus and methods are described herein, comprising a vessel having a plurality of flow guides oriented vertically in the vessel, a liquid inlet at a lower part of the vessel, a gas inlet at the lower part of the vessel, a first liquid outlet at an upper part of the vessel, a second liquid outlet at the lower part of the vessel, and a gas outlet at the upper part of the vessel.

US Patent:

20200197954, Jun 25, 2020

Filed:

Dec 21, 2018

Appl. No.:

16/230464

Inventors:

- Sugar Land TX, US
Daniel E. Shannon - Houston TX, US

International Classification:

B03D 1/14
B03D 1/006

Abstract:

Flotation separation apparatus and methods are described herein, comprising a vessel having a plurality of flow guides oriented vertically in the vessel, a liquid inlet at a lower part of the vessel, a gas inlet at the lower part of the vessel, a first liquid outlet at an upper part of the vessel, a second liquid outlet at the lower part of the vessel, and a gas outlet at the upper part of the vessel.

US Patent:

20180111865, Apr 26, 2018

Filed:

Oct 26, 2016

Appl. No.:

15/335113

Inventors:

- Houston TX, US
Daniel E. Shannon - Houston TX, US
Georgianna Watson - Manvel TX, US

International Classification:

C02F 9/00

Abstract:

A system and method arranged to treat a produced water stream used in chemical enhanced oil recovery. The produced water stream is exposed to ultraviolet light sources that provide a radiant energy dosage that destabilizes organics. The ultraviolet-radiated stream is then passed through an adsorbent polymer media. An oxidant may be added to the ultraviolet-radiated stream ahead of the adsorbent polymer media or to an effluent stream exiting the adsorbent polymer media.

US Patent:

20170267548, Sep 21, 2017

Filed:

Mar 17, 2016

Appl. No.:

15/072619

Inventors:

- Houston TX, US
Daniel E. Shannon - Houston TX, US

International Classification:

C02F 1/24
C02F 1/38
C02F 1/00
B01D 17/02
B01D 17/04

Abstract:

A method to remove oil from an oily water stream includes the step of pressure controlling a release of dissolved gases from the stream as the stream passes through two or more stages of gas flotation treatment. The operating pressure of the first stage of flotation treatment is purposefully reduced relative to that of an upstream unit so that a certain controlled percent volume of dissolved gases is released. The operating pressure of the second stage of flotation treatment is then purposefully reduced relative to that of the first stage so that another controlled percent volume of dissolved gases is released. Any subsequent flotation treatment stage is at a lower operating pressure than that of the previous stage so that the subsequent treatment stage releases a controlled percent volume of dissolved gases. By controlling the operating pressure in this way, overall separation performance is improved.

US Patent:

20150329382, Nov 19, 2015

Filed:

May 15, 2014

Appl. No.:

14/278978

Inventors:

- Houston TX, US
Jimmie D. Weaver - Duncan OK, US
Daniel Edward Shannon - Houston TX, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

C02F 1/463

Abstract:

Electrocoagulation may be used to reduce the concentration of zinc ions in produced water. For example, a method may induce producing a wellbore fluid from a subterranean formation, the wellbore fluid comprising hydrocarbons and water, the water having zinc ions dispersed therein at a concentration greater than about 1 ppm; separating the hydrocarbons from the water; and separating at least some of the zinc ions from the water via electrocoagulation to yield an effluent water and precipitated zinc salts.