Steamflood reservoir management booklet

When hightemperature steam is injected into heavy oil reservoirs, the bulk. Perform a detailed study on the geochemical interactions between the. This new document has sought to explain and guide the user through the steps of the risk informed approach to reservoir safety management, providing an introduction and explanation of basic concepts through a. Application of seismic monitoring to manage an earlystage steamflood, spe. At the steam front between steam and hot condensate, the pressure and temperature may initially be about 250 psia and 350 f, and later drop to 5 psia and 350 f as the steamflood matures. Managing reservoir surveillance in the duri steam flood field. Updated screening criteria for steam flooding based on oil. He has taught courses in reservoir characterization and reservoir simulation both in canada. For all individual management scenarios, only complete conversion of agricultural lands into rangeland decreased nutrient levels and algae growth significantly and achieved target levels for chlorophylla and total phosphorus.

Updated screening criteria for steam flooding based on oil field projects data by mariwan qadir hama a thesis presented to the faculty of the graduate school of the. Section 4 hydrology introduction in the americari society of civil engineers manual, nomenclature for hydraulics, flood routing is variously defined as follows. Reservoir management in the duri steamflood onepetro. In 1980 gomaal developed a set of correlation charts for predicting oil recovery and cumulative oilsteam ratio, emphasizing the effects of steam quality, mobile oil saturation, reservoir thickness and netgross. Reservoir management decisionmaking in the presence of geological uncertainty a dissertation submitted to the department of petroleum engineering and the committee on graduate studies of stanford university in partial fulfillment of the requirements for the degree of doctor of philosophy by paulo s ergiodacruz march 2000. Examples include the deepwater tahiti field in the u. Reservoir and production monitoring and control devices are critical components for better reservoir management.

Dugbored wells are holes in the ground dug by shovel or backhoe. Pdf simulation on heavy oil production from steamflooding. Guidance for reservoir managers on the management of. Lrm abstracts north american lake management society. Key elements of duris reservoir management practices include. Spe9801 reservoir management for waterfloodspart ii. Pressure, temperature, and saturation changes duri engineers estimate that steam is injected into the reservoir at the wellbore at about 430 f and 350 psia. Signatories include baltimore and carroll counties, baltimore city, baltimore county soil conservation district, carroll. Prediction of steamflood performance in heavy oil reservoirs. To use this understanding to 1 help in interpreting exploration surveys, and 2.

Development planning and reservoir management in the duri. Purpose of geothermal reservoir engineering to gain a quantitative understanding of the flows of fluid mass and of heat which take place within the geothermal reservoir under natural conditions, and how they change due to production and injection operations. Tarek ahmed is the author of reservoir engineering handbook 4. Poststeamflood reservoir management using a fullscale 3d.

Reservoir and channel flood routing are the two types of routing that will be considered. Fig, 4 shows the configuration ofthe 7spot steam injection pattern. Reservoir management has now matured to the point where great emphasis isplaced on working as a crossfunctional team, involving all technical areas,management, economics, legal, and environmental groups. Reservoir watershed management agreement department of planning. Enhanced oil recovery using steam linkedin slideshare. In addition to his pennwell publishing company book on computerassisted reservoir management 2000, he wrote integrated petroleum reservoir management 1994, and integrated water flood asset management 1998 books. Reservoir limnology is effected by inter reservoir diversions, releases from various depths, and water supply withdrawals. Army corps of engineers usace is the largest reservoir management agency charged primarily with flood control and. The contained tool for reservoir operations and managed flows is based on available literature, and draws findings from relevant works wherever possible. Tarek ahmed author of reservoir engineering handbook. Pdf reservoir surveillance program in heavy oil thermal enhance oil recovery find, read and cite all the research you need on. Waterflood management 2014 petro management group ltd. Reservoir managers must let us know if they appoint or change supervising engineers within 28 days of the appointment or change. The above concerns led to an early reservoir agreement in 1979, which was significantly strengthened in 1984.

A greentree reservoir gtr hereafter is a forested lowland that is temporarily flooded during fall and winter to attract ducks, mainly mallards and wood ducks it. The duri steam flood dsf project has 12 development areas to be processed from now until the year 2021. Dug wells have a large diameter, are shallow, and are not cased continuously. Traditional gtr management annual flooding stable hydrology deep water 1m wigley and filer 1989 0 0. Several actual examples and case studies are included for illustrative purposes.

Developing computerized 3d visualizations of the geologic and reservoir simulation models to aid in analysis. This type ofreservoir management model has proved to be quite successful. Citation focused studies on historical proven steamflooded areas. It is shown that cyclic steaming can yield oilsteam ratios bbl oilbbl steam of the order of 0.

This text presents the fundamentals of integrated reservoir management practice, including the technical and management perspectives. Hydrology training series module 111 reservoir flood. Selective criteria to choose suitable candidate fields for eor application. Technology shifts better reservoir description most important element for improved oil recovery in the ncs up to about mid nineties 3d seismic, geophysical and geological modelling shift 1. Field production data were studied, to derive an overall energy balance for the steamflood, to calculate the steamflood capture efficiency and predict future steamflood performance. Considering that the volume of the heated zone can be determined from heat balance at the steam zone, an expression for the oil displacement rate is obtained as a function of volume. Seismic monitoring of steamfloods in heavy oil reservoirs.

Guidance for reservoir managers on the management of controlled reservoirs reservoirs scotland act 2011. Pdf spe182190ms optimization of steamflooding heavy oil. Integrated reservoir management tyler sand reservoir model for eor sensitivities. Predicted production schedules from the model were historymatched with field production data the reservoir parameters porosity, phi, net thickness, hsub. He is currently president of epic consulting services. Reservoir management technology also may be applied before a field begins production. Mechanistic features of cyclic steam stimulation and steamflooding are briefly considered. Reservoir management for waterfloodspart ii richard baker has worked on a number of reservoir characterizationreservoir simulation projects world wide in russia, indonesia, south america, middle east and north america. Integrated reservoir management uses all irts services to splice the diverse pieces of a technical puzzle together, leading to the most accurate possible description of the reservoir, prediction of its performance and optimization of its economic depletion.

The feh indicated that it was designed to estimate rainfalls up to a return. Reservoir managers who operate high or medium risk sites must have a supervising engineer appointed at all times. Driven wells are constructed by driving pipe into the ground. Reservoir limnology is effected by interreservoir diversions, releases from various depths, and water supply withdrawals. A 20acre steamflood pilot started in 1982using four 5. C steamflood reservoir management, pennwell books, tulsa, 1994. A powerful method to add value to companies assets. Lrm abstracts north american lake management society nalms. Reservoir management is used throughout the life cycle of crude oil and natural gas fields. This publication is part of the flood management tools series being compiled by the associated programme on flood management. Most of the developed reservoir management techniques fail to address the specificities of flood control.

Reservoir management process most of the people know the management reservoir as a synonym with reservoir engineering that in the early 1970 reservoir engineering was proposed as a most important technical aspect of reservoir management dvyrty, g. Publication date 1994 note accompanied by solutions manual6 p. Wells are generally classified by construction method as dugbored, driven, or drilled, as shown in the figure 1 image. These devices being important for understanding the state of the reservoir as well as for optimizing its exploitation, their availability and utilization has grown and is still growing. Perform a detailed study on the geochemical interactions between the steam and the formation rock and fluids. The lake and reservoir restoration guidance manual represents a landmark in this nations commitment to water quality, as it brings to the lake user practical knowledge for restoring and protecting lakes and reservoirs. He retired from chevron corporation in 1997 after 34 years of distinguished service in research and field assignments, the last of which was senior advisor. Kern river is the largest steamflood in the world, producing about 80,000 bd. Reservoir surveillance is a key component in subsurface heat management and horizontal well development of duri field steam flood.

Heatlosses due to produced fluids were also calculated. Because of its success, the pilot was convertedinto a full steamflooding operation in 1989. The steam that is shifted out of an old steamflood development area becomes the. Reservoir watershed management agreement department of. Flood control is commonly dealt with as a constraint to a main conservation objective.

Reserves additions via new discoveries ha ve been declining steadily in the last decades, and the increase of recovery factors from mature oilfields. These were created for the public with public dollars. This has been replaced by an expanded reservoir agreement signed in 2005. Pennwell books, 1994 a comparison of mass rate and steam quality reductions to optimize steamflood performance. In a reservoir, this is done by accounting for the storage available in the reservoir, whereas in a channel, the flood wave is observed at successive points along a river. He has been involved in reservoir management projects in the us, uk, cameroon, denmark, indonesia, nigeria, trinidad, and others. It is used to determine the most beneficial way to develop a new field or to bring new life to a mature field with, for example, an enhanced oil recovery measure such as steamflooding. The compaction during early history resulted in subsidencethat was later on partially corrected by water injection pressure maintenancebeginning in 1960. Reservoir management has now matured to the point where great emphasis isplaced on working as a crossfunctional team, involving all technical areas, management, economics, legal, and environmental groups. These are open source clean water, pollution prevention, and environmental outreach materials. Hong is the founding president of kch consulting inc. Floods and reservoir safety revised guidance for panel engineers 1. Greentree reservoir management by brent ortego, carl frentress, hayden haucke and julie hogan rose biologiststexas parks and wildlife dept. Technoeconomic and risk evaluation of a thermal recovery.

Gulf of mexico and the agbami field offshore nigeria, where we employed integrated reservoir management techniques to design field development plans that maximize production and reserves. Source water reservoir systems are usually designed for water quantity maximizing safe yield. A generic term for increasing the amount of crude oil extracted from an oil reservoir also referred to as improved oil recovery or tertiary oil recovery using eor, oil extraction rate can exceed up to 60% compared to primary and secondary oil recovery methods 2040% recovery 4. This type ofreservoirmanagement model has proved to be quite successful.

When onelayer reservoir is submitted to steamflood, it is possible to assume that the volume in the steam zone is equivalent to the volume of the heated zone. A 20acre steamflood pilot started in 1982using four 5spot patterns. Guide to risk assessment for reservoir safety management. Because of the high oil viscosity, water injection was notan effective displacement method. More than an explanation of restoration techniques, this manual is a guide to wise manage. For the reservoir, management options of phosphorus inactivation and increased algal consumption by grazers were evaluated. Reservoir safety management is a process of managing the risk of an uncontrolled release of the contents of a reservoir. Spe182190ms optimization of steamflooding heavy oil reservoirs under.