WO2020139821A1 - Système de torche utilisant de l'eau produite et une injection d'ozone - Google Patents

Système de torche utilisant de l'eau produite et une injection d'ozone Download PDF

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Publication number
WO2020139821A1
WO2020139821A1 PCT/US2019/068301 US2019068301W WO2020139821A1 WO 2020139821 A1 WO2020139821 A1 WO 2020139821A1 US 2019068301 W US2019068301 W US 2019068301W WO 2020139821 A1 WO2020139821 A1 WO 2020139821A1
Authority
WO
WIPO (PCT)
Prior art keywords
produced water
scrubber
scrubber unit
flare
unit
Prior art date
Application number
PCT/US2019/068301
Other languages
English (en)
Inventor
Mark Patton
Original Assignee
Hydrozonix, Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hydrozonix, Llc filed Critical Hydrozonix, Llc
Priority to EP19904140.1A priority Critical patent/EP3897919A4/fr
Publication of WO2020139821A1 publication Critical patent/WO2020139821A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/14—Packed scrubbers
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention

Definitions

  • This invention relates to a system and apparatus for flaring gas from oilfield operations using produced water.
  • the present invention comprises a system and apparatus for flaring gas from oilfield operations using produced water.
  • the system provides an alternative treatment and disposal technique for produced water, thereby avoiding problems associated with injecting produced water back into subsurface strata, such as induced seismicity.
  • the system is configured to be installed at or near the wellhead, thereby avoiding the problems of prior art centralized systems for handling produced water, which are substantially larger and built at a central location to store and gather large quantities of produced water. Centralized systems require the produced water to travel much greater distances and become cooler before treatment, thereby requiring more energy for heating or treatment.
  • the present invention uses produced water that is at a temperature of greater than 100 degrees F, thereby reducing the amount of energy required for heating.
  • produced water is treated in a scrubber.
  • Heat is applied through a flare gas field burner, which uses field gas from the oilfield operations (and thus provides a useful alternative to simply open flaring the field gas as a means of preventing the accumulation of field gas for safety reasons as well as preventing the venting of methane, a greenhouse gas, into the atmosphere).
  • a wet scrubber unit with scrubber packing is used to clean emissions (e.g., nitrous oxides, sulfur oxides, acid gases, particulate matter, and the like).
  • a produced water pump is used to circulate produced water, and pump produced water through spray nozzles in the scrubber unit for use as the wet scrubbing agent. The present invention thus optimizes contact and mixing between the hot air and water.
  • the above process also results in gradual evaporation of the produced water, which results in the accumulation of salts and other solids from the produced water.
  • Evaporated salts and solids are continuously removed from the evaporator/scrubber unit by appropriate means, such as an auger system.
  • the evaporated salts and solids are then treated via chemical stabilization in a mixing system with chemical reagents to prevent the residual form from being hazardous.
  • the residual material is then stored and disposed of properly.
  • the present invention thus provides a more environmentally-friendly and efficient means of addressing several pollution and related concerns.
  • the system eliminates open flaring by using the field gas in a field gas flare burner to heat produced water, and scrubbing the emissions using the heated produced water in a scrubbing unit.
  • the system eliminates or reduces the volume of produced water.
  • the system operates at or near the wellhead, thereby allowing use of the field gas while treating the produced water with less energy required.
  • FIG. 1 shows a view of a system in accordance with an embodiment of the present invention.
  • the present invention comprises a system and apparatus for flaring gas from oilfield operations using produced water.
  • the system provides an alternative treatment and disposal technique for produced water, thereby avoiding problems associated with injecting produced water back into subsurface strata, such as induced seismicity.
  • the improved system of the present invention also is configured to be installed at or near (i.e., close proximity to) the wellhead, thereby avoiding the problems of prior art centralized systems for handling produced water, which are substantially larger and built at a central location to store and gather large quantities of produced water. Centralized systems, however, require the produced water to travel much greater distances and become cooler before treatment, thereby requiring more energy for heating or treatment.
  • the present invention uses produced water that is at a temperature of greater than 100 degrees F, thereby reducing the amount of energy required for heating.
  • FIG. 1 shows an exemplary embodiment of an improved system in accordance with the present invention.
  • Produced water is treated in the scrubber 10 Heat is applied through a flare gas field burner 12, which uses field gas from the oilfield operations (and thus provides a useful alternative to simply open flaring the field gas as a means of preventing the accumulation of field gas for safety reasons as well as preventing the venting of methane, a greenhouse gas, into the atmosphere).
  • a wet scrubber unit with scrubber packing 14 is used to clean emissions (e.g., nitrous oxides, sulfur oxides, acid gases, particulate matter, and the like).
  • a produced water pump 16 is used to circulate produced water, and pump produced water through spray nozzles 18 in the scrubber unit for use as the wet scrubbing agent.
  • the present invention thus optimizes contact and mixing between the hot air and water.
  • ozone is used in the wet scrubber 10 to reduce NOx by approximately 90% or more.
  • the ozone oxidizes insoluble NOx to a water soluble species form for removal by the scrubber with little or no S02 or CO oxidation.
  • the oxidation of NOx takes place at or below 300 degrees F (i.e., low temperature oxidation).
  • Ozone may be generated on-site and injected to the evaporator/scrubber unit.
  • the ozone is added to the effluent gas of the thermal oxidizer prior to entering the evaporation chamber. As a result, NOx emissions are reduced.
  • Evaporated salts and solids are continuously removed from the evaporator/scrubber unit by appropriate means, such as an auger system 20.
  • the evaporated salts and solids are then treated via chemical stabilization in a mixing system (e.g., treatment mixer) 30 with chemical reagents (which are stored in a reagent silo 32) to chemically stabilize the residual and prevent the residual from being hazardous.
  • the residual material is then stored and disposed of properly.
  • the present invention thus provides a more environmentally-friendly and efficient means of addressing several pollution and related concerns.
  • the system eliminates open flaring by using the field gas in a field gas flare burner to heat produced water, and scrubbing the emissions using the heated produced water in a scrubbing unit.
  • the system eliminates or reduces the volume of produced water.
  • the system operates at or near the wellhead, thereby allowing use of the field gas while treating the produced water with less energy required.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)

Abstract

L'invention concerne un système et un appareil pour traiter et éliminer l'eau produite conjointement avec un gaz de torche, ce qui permet d'éviter les problèmes associés à la réinjection d'eau produite dans des strates souterraines. Le système est installé au niveau ou à proximité de la tête de puits où l'eau produite en cours de traitement est à des températures élevées. L'eau produite est traitée par injection d'ozone dans un épurateur avec de la chaleur appliquée à travers un brûleur de champ de gaz de torche, qui utilise un gaz de champ provenant d'opérations de champ pétrolifère. Une unité d'épurateur par voie humide pourvue d'une garniture d'épurateur est utilisée pour purifier les émissions. Une pompe à eau produite est utilisée pour faire circuler de l'eau produite, et pomper de l'eau produite à travers des buses de pulvérisation dans l'unité d'épurateur pour une utilisation en tant qu'agent de lavage humide. A mesure que l'eau produite s'évapore, les sels évaporés et les solides sont retirés en continu de l'unité évaporateur/laveur par des moyens appropriés, tels qu'un système de tarière.
PCT/US2019/068301 2018-12-23 2019-12-23 Système de torche utilisant de l'eau produite et une injection d'ozone WO2020139821A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19904140.1A EP3897919A4 (fr) 2018-12-23 2019-12-23 Système de torche utilisant de l'eau produite et une injection d'ozone

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862784525P 2018-12-23 2018-12-23
US62/784,525 2018-12-23

Publications (1)

Publication Number Publication Date
WO2020139821A1 true WO2020139821A1 (fr) 2020-07-02

Family

ID=71126250

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2019/068301 WO2020139821A1 (fr) 2018-12-23 2019-12-23 Système de torche utilisant de l'eau produite et une injection d'ozone

Country Status (2)

Country Link
EP (1) EP3897919A4 (fr)
WO (1) WO2020139821A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4351729A (en) * 1980-02-06 1982-09-28 Celanese Corporation Biological filter and process
US5484279A (en) * 1993-03-22 1996-01-16 Emcon, Inc. Method and apparatus for disposal of landfill gas condensate
US20040237782A1 (en) * 2003-02-26 2004-12-02 Scott Decker Ozone remediation apparatus and methods
US8967995B1 (en) * 2013-08-14 2015-03-03 Danny Edward Griffin High-efficiency dual flare system
US20160046505A1 (en) * 2013-04-09 2016-02-18 Wintershall Holding GmbH The cleaning of reservoir water
US20170320012A1 (en) 2014-10-06 2017-11-09 Kanken Techno Co., Ltd. Exhaust gas processing device
US10443356B1 (en) * 2016-09-21 2019-10-15 Hydrozonix, Llc Flare system using produced water

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4746290A (en) * 1986-05-29 1988-05-24 International Technolgy Corporation Method and apparatus for treating waste containing organic contaminants
JP2005349299A (ja) * 2004-06-10 2005-12-22 Mitsubishi Heavy Ind Ltd 淡水製造装置
EP2659947A1 (fr) * 2012-04-30 2013-11-06 Linde Aktiengesellschaft Procédé et appareil d'élimination de contaminants de gaz d'échappement
US9199861B2 (en) * 2013-02-07 2015-12-01 Heartland Technology Partners Llc Wastewater processing systems for power plants and other industrial sources

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4351729A (en) * 1980-02-06 1982-09-28 Celanese Corporation Biological filter and process
US5484279A (en) * 1993-03-22 1996-01-16 Emcon, Inc. Method and apparatus for disposal of landfill gas condensate
US20040237782A1 (en) * 2003-02-26 2004-12-02 Scott Decker Ozone remediation apparatus and methods
US20160046505A1 (en) * 2013-04-09 2016-02-18 Wintershall Holding GmbH The cleaning of reservoir water
US8967995B1 (en) * 2013-08-14 2015-03-03 Danny Edward Griffin High-efficiency dual flare system
US20170320012A1 (en) 2014-10-06 2017-11-09 Kanken Techno Co., Ltd. Exhaust gas processing device
US10443356B1 (en) * 2016-09-21 2019-10-15 Hydrozonix, Llc Flare system using produced water

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3897919A4

Also Published As

Publication number Publication date
EP3897919A1 (fr) 2021-10-27
EP3897919A4 (fr) 2022-10-19

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