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Decreasing Microorganisms in Oilfield Fluids Using Ultrasonic Wave Technologies

IP.com Disclosure Number: IPCOM000249737D
Publication Date: 2017-Mar-29
Document File: 3 page(s) / 17K

Publishing Venue

The IP.com Prior Art Database

Related People

Baker Hughes Incorporated: OWNER [+4]

Abstract

BHI intends to use ultrasonic technologies to reduce the number of microorganisms in oilfield fluids. The present invention relates to methods of decreasing microbial growth of at least one microorganism in a fluid by providing ultrasonic waves to the fluid, optionally heating the fluid to a pre-determined temperature prior to providing the ultrasonic waves, and/or optionally providing the fluid with an effective amount of a gas at the same time or different time from providing the ultrasonic waves.

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                  Decreasing Microorganisms in Oilfield Fluids Using

                                    Ultrasonic Wave Technologies

                  BHI intends to use ultrasonic technologies to reduce the number of microorganisms in oilfield fluids. The present invention relates to methods of decreasing microbial growth of at least one microorganism in a fluid by providing ultrasonic waves to the fluid, optionally heating the fluid to a pre-determined temperature prior to providing the ultrasonic waves, and/or optionally providing the fluid with an effective amount of a gas at the same time or different time from providing the ultrasonic waves.

                  Microorganisms may be found in various oilfield fluids.  Such fluids may be downhole fluids, such as drilling fluids, completion fluids, production fluids, injection fluids, stimulation fluids, refinery fluids, servicing fluids, and combinations thereof.  High numbers of microorganisms has been found to create problems in oilfield systems, such as corrosion, souring, emulsions and plugging. It has been discovered that ultrasonic waves provided to a fluid may decrease microbial growth of at least one microbial population within a fluid.  Ultrasonic waves have an oscillating sound pressure wave with a frequency greater than the upper limit of the human hearing range, i.e. above about 20 kilohertz (kHz). Ultrasonic waves may be produced and provided to employ a sonication technique and disrupt cellular membranes within a microorganism. This technology may be used without or in conjunction with the application of chemical biocides for improving the reduction rate of microorganisms.  In a non-limiting embodiment, the ultrasonic waves may be provided to the fluid by a sonication device, such as but not limited to a Q500 Sonicator distributed by QSONICA, an LG SONIC e-line device, and t...