913 Sagd produced water treatment technology development esaa watertech 2012 banff, alberta ap. Treatment of thesewaters to provide feed-water suitable for once through steam generators otsghas traditionally included either hot or warm. The produced water treatment system started up in july of 2012 and has run continuously. You can also download a hard-copy paper registration form. Oilfield water treatment solutions; oil treatment; water treatment; gas treatment; solids management; operational support; process pilot testing; production systems. The reservoir is 1000 ft deep with pay thickness of 8 ft. Boiler water treatment chemicals - optisperse hp54674. Treatment of sagd water using low coagulant dose and fenton. Water use and greenhouse gas emissions in albertas oil sands are growing. Treatment of oil sands produced water using combined electrocoagulation and chemical coagulation techniques. A water recovery process for a steam assisted gravity drainage system for a heavy oil recovery facility, the process comprising a flash drum and a flash drum heat exchanger/condenser, wherein the water recovery process receives hot water produced by a facility at a temperature above the water atmospheric boiling point and cools it to a temperature below the water atmospheric boiling point. Sagd is generally used to ehance oil recovery for bitumen extraction from oil sands. Improper treatment of brine discharge and more rigorous regulations of.
Water treatment and steam generation are critical to in situ oil production. Although sagd recovery process achieves high oil recovery, many drawbacks are related to this process, such as produced water treatment and. Ceramem ceramic industrial solutions water treatment for membrane systems and services oil and gas. With the technical and business challenges of industrial water treatment. Water from sagd is trucked and disposed into deep wells resulting in high. The certification program guidelines require either 2 years of. Treatment processes are covered by full and interlinked design examples which are built up throughout the series and the books, from the determination of the waste-water characteristics, the impact of the discharge into rivers and lakes, the design of several wastewater treatment processes and the design of the sludge treatment and disposal units. 1004 Produced water treatment systems high performing, low cost filtration and ion. The steam assisted gravity drainage sagd process was developed in canada in the 10s. The water treatment and steam generation of the plant handles the largest volumes of fluids in the process. Of adequate wastewater treatment in these communities. Abstract: steam assisted gravity drainage sagd boiler blow-down bbd water contains high concentrations of dissolved organic matter dom and total dissolved solids tds. Toc and 2 ppm silica in the feed water to a drum boiler, and below 600 ppm toc and 50 ppm silica in the feed water to a otsg ?Goodman et al. Clean water is essential to the safe operation of the boilers, mitigating the safety risk of tube failure. Water warm lime softener lime, caustic, magox, soda ash orfs. Sagd; process integration; membrane filtration, nanofiltartion.
Leveraging our expertise and 50 years of experience in thermal solutions and 25 years in produced water treatment, ide is able to address the sagd industrys specific needs with robust, reliable and cost-effective horizontal evaporators that are suitable for remote locations and resilient to challenging chemical water compositions. Make-up water may be required due to water losses in the bitumen treating process, such as boiler blowdown and ion exchange wastes to disposal wells. This water contains small concentrations 100 to 2000 mg/l of dispersed hydrocarbons in the form of oil droplets. Wastewater treatment process with membrane filtration to provide a large treatment capacity and high. 5 purpose the purpose of the blowdown and boiler feed water disposal system is to collect blowdown from the steam generation system and excess produced water, neutralize and filter the wastewater and dispose of the water via injection into a well. The treated water gets further processed by reverse osmosis thus ensuring steam generation. The water consumed per barrel of bitumen extracted has not declined substantially, but. Condensed steam that returned to surface with emulsion. The hpd produced water evaporation system also demonstrated its unique design features by managing high-hardness water and. Benefits of the pilot may include lower costs for water treatment processes, lower ghg emissions and decreased process footprint of sagd facilities. The initial oil and water saturation of the reservoir model is 87 and 13, respectively. Vista has a longstanding history of greenfield, major capital project experience in the in-situ heavy oil sector. 926 A water treatment plant, where the recovered water is cleaned and recycled back into the process, and.
Liqtech silicon carbide membrane technology removes solids and oil from lake maracaibo surface. Using activated biochar for greenhouse gas mitigation and industrial water treatment. 493 The aim of this work was to review studies, conducted mainly during 2008-2011, on the wide and versatile range of feasible ec applications employed in the purification of. A detailed understanding of the bbd chemistry, particularly the dom composition, is important for better management and recycle of this water. Liqtech silicon carbide membrane technology removes solids and oil from lake maracaibo surface water. For injection into the formation steam flooding, cyclic steam, sagd. Hotter bfw ideal sagd cycle lower fuel gas cost lower carbon footprint. Roger butler, introduced the concept of steam assisted gravity drainage sagd. This assessment considers pretreatment, desalination, post-treatment, and concentrated waste disposal to meet the required water quality. Primary treatment consists of three phase separator followed by a skimming tank. The program conducts monitoring in the oil sands region of alberta. And silica removal from sagd water at 80oc and 22oc and two different concentrations replicating the stream feeding the warm lime softening unit and the blowdown of the once through steam generator otsg. Sagd is a type of in situ technology sand left in place in situ - latin for in place. At the same time, the process removes other water components such as silica, heavy metals, fluorides and phosphates as well as tss total suspended solids. These results can help oil sands operators make informed decisions about investments in water treatment technologies for sagd operations.
Energy is required for making water and water is required in the production of energy. For a detailed description of sagd water processes and the benefits of the toluene extraction method, refer to tdhis article on oil measurement. Designed to further enhance water quality, actiflo softening combines in a single compact treatment unit both clarification and softening operations to reduce water alkalinity and hardness. Keywords: oil sands; sagd; membrane processes; produced water treatment; reverse. Currently, the sagd produced water is recovered by the free water knock out fwko, corrugated plate interceptor, and induced gas flotation for de-oiling before passing to conventional treatment. As a result, operators are looking for on-site blowdown water treatment. Water treatment and steam generation create a high demand for clean water. Drainage sagd produced water using iron-hydroxide-coated walnut shell filter media. The sagd facility is called orion and consists of 4 major processes: steam generation, injection/recovery wells, deoiling and water purification. A new water treatment system for sagd operations is disclosed. Of conventional sagd-produced water treatment processes. The system supplied would need to maximize reuse of the treated produced water and minimize waste generated while. In this application note, water samples obtained from. Membrane separation as a single-step water treatment technique has. 193
Aimsthe journal of water process engineering aims to be the premier. Please feel free to print and post this in a location. ? Sagd water treatment trains typically comprise of 3 stages, primary, secondary and tertiary. 375 However, in the 2012 guidelines to water reuse, the. Water treatment for sagd oil production pre-treatment for ro. Keywords:oil sands; produced water treatment; boiler blowdown; coagulation/flocculation. The typical total installed costs tic on these projects is between 450m and 1. 5 and 12 respectively in the water treatment system of sagd operations relative to typical configurations. The greenhouse gas footprint of the water treatment process. Outcomes relate to surfactant-stabilised oil-in-water o/w emulsions both as a. The silicone oil contaminated solids are then dried in a continuously mixed sludge dryer to remove more silicone oils from the sludge to form a sludge product which. Gas: enhanced recovery sagd steam assisted gravity drainage is an enhanced oil recovery eor process common in oil sands deposits such as those found in central canada. Water treatment: sagd oil sands online training course; blowdown and boiler feed water bfw disposal: sagd oil sands online training. Water needs for viscous oil and oil sands production. Sagd can recover up to 60 of the oil in the formation.
Over the years, we have engineered oilsands facilities with a combined nameplate production capacity of approximately 400,000 bpd. During the last two decades, and particularly during the last few years, the environmental sector has shown a largely growing interest in the treatment of different types of water and wastewater by electrocoagulation ec. 25 of oil sands production in alberta and is the fastest growing production method by a large margin. The absolute permeability of the formation is 5000 md in the horizontal and 4000 md in the vertical direction. Sagd facilities have highly integrated hydrocarbon and water treatment units. Enable more efficient bfw treatment systems hot membrane reverse-osmosis compact and efficient mvcs. An oil sands producer in northern alberta, developing a new central process facility, required that the water treatment system use water efficiently to meet operational and sustainability objectives. 20 Outline overview of sagd produced water pw treatment water chemistry management challenges: reduce blowdown water disposal reduce make up water improve reliability of treatment processes knowledge of water chemistry snapshot of the chemistry of blow-down water dissolved organic matter dom concluding remarks 2 mechanical engineering, uofa. Generally, some form of treatment is required prior to reuse. The water treatment facility provided clean water to the boilers which give steam to the sagd wells to heat up the reservoir and produce oil. Gees eox is operating on a sagd plant successfully removing silica, tss, cod, h2s, metals and toc. A paradigm shift has occurred in the treatment of produced water for sagd facilities. In steam assisted gravity drainage sagd operations, condensed water dissolves the formation minerals and mixes with formation water.
Pw needs treatment to meet water quality requirement set by regulatory bodies. This chapter summarizes nanofiltration nf studies focused on the treatment of thermal in-situ steam-assisted gravity drainage sagd-produced water. Read online or download owners manuals and user guides for water. 3 the main characteristics of conventional oil ?Eld produced water ofpw, sagd produced water sagdpw, oil sands mining process-a?Ected water ospw, and sagd based boiler blowdown bbd water are illustrated in. 2 conventional sagd water treatment using lime softening and ion exchange presently, the general guideline on water recovery is to recycle 0 of the. In 2013, alberta innovates, ge and suncor began piloting new produced water treatment technologies to treat, and thus reuse, more water using less energy and fewer pieces of equipment. 425 During conventional steam assisted gravity drainage sagd operations on a cwe basis, produced water will exceed steam injected; thus, no make-up water will be required. Reuse of produced water is critical to the life cycle and further production in sagd facilities. Steam assisted gravity drainage sagd produced water pw consists of oil. The energy efficient treatment system reduces the cost of blowdown transport and disposal. This downloadable free whmis poster pdf illustrates the changes from the 188 standard to todays whmis 2015 standard. Processes developed for sagd and phase/solids from water when contaminants to recover more shale gas applications are effective the feed is pressurized. One near the bottom of the formation, and another about 13 to. Three typical sagd configurations have been selected, all with different water treatment and steam generation systems that are representative of active. The success of this project meets several industry challenges. 0 sait rd -in-situ water treatment technologies ng oil solids pw skim tank induced gas flotation igf oil removal filters orf hot lime softener hls lime sluge filter lsf weak acid cation ion exchange wac knock out skim tank igf orf hls lsf wac typical sagd produced water treatment pwt process to meet boiler feed water quality to otsg to otsg. The development and application of appropriate water treatment and reuse. Treatment of sagd produced water without lime softening. The treatment steps and many terms are unique to this process but.
Back to production; all production systems; artificial lift; metering and automation systems; production valves; safety systems; subsea equipment; chokes; water injection pumps. Free boiler water treatment basics and boiler chemistry and process books, pdf documents and manuals. An oil sands producer in northern alberta, developing a new central. Treatment of oil sands industry waste water using reverse osmosis membranes. Steam assisted gravity drainage sagd blowdown water from three operating sites was treated using saltworks saltmaker multieffect evaporator crystallizer. Of these membranes for oil sands produced water treatment with an. A pdf of todays presentation can be downloaded when you complete the survey at. Steam assisted gravity drainage sagd blowdown water from three operating sites was treated using saltworks saltmaker. Using produced process-affected water from canadas oil sands. The results of the study show that there are potential cost and electricity savings of up to 1. To the us-epa guidelines for water reuse for irrigation treated pw to the sea, the main treatment. Additionally, any water and wastewater treatment technologies applicability and performance. 488 The treatment purpose is to reclaim produced water for a high quality. Sagd is extremely water intensive thus proper treatment is essential to eliminate corrosion and scale build-up. Interactions of dom with silica and silicates have been studied in the context of drinking water treatment and membrane fouling. In this process, two horizontal wells are drilled into the oilsand formation. Membranes for the treatment and recycling of sagd produced water.
Provincial regulations limit the volumes of water that can be disposed of by the facilities. Biographies; and the adobe pdf version of the complete report. Oily water treatment schemes for steam generation in sagd heavy oil developments. Its purpose is to track environmental impacts, and to assess cumulative environmental. Industrial wastewater treatment describes the processes used for treating wastewater that is produced by industries as an undesirable by-product. Produced water treatment is typically considered an upstream oil and gas og process. Level i atap water treatment certification preparation course. This compares to mining where sand is extracted with oil. It has met operation parameters for veolias deoiling equipment and exceeded water recycle targets with reuse rates exceeding 8. 1000 A method of removing silicone oils from waste water generated by a silicones manufacturing plant including the step of centrifuging the waste water to concentrate silicone oil contaminated solids while removing the silicone oils.