Cameron International Corporation

Halliburton Energy Services, Inc.

Cameron Solutions, Inc.

Daniel Edward Shannon

Luis Eduardo Caires-Fernandez

Jimmie Dean Weaver, Jr

Wenjun Liu

Paul D Lord

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.

Flotation performance enhancement

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.

Pressure controlled gas flotation

Electrocoagulation may be used to reduce the concentration of hydrate inhibitors in produced water. For example, a method may include producing a fluid from a subterranean formation, the fluid comprising petroleum hydrocarbons and water, the water having an organic material that includes hydrate inhibitors dispersed therein, wherein the hydrate inhibitors are at a concentration of about 30 ppm or greater in the water; separating the petroleum hydrocarbons from the water and the organic material; and separating at least some of the organic material from the water via electrocoagulation to yield an effluent water and a coagulated organic material.

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Houston, TX, United States of America

Daniel Edward Shannon