In this paper, methods such as elemental analysis, and solvent extraction are adopted for the study of wellbore blockages. Reservoir formation damage, second edition is a comprehensive treatise of the theory and modeling of common formation damage problems and is an important guide for research and development, laboratory testing for diagnosis and effective treatment, and tailorfit design of optimal strategies for mitigation of reservoir formation damage. Join facebook to connect with chike amaefule and others you may know. Simulation of formation damage in petroleum reservoirs. Thankgod amaefule born 16 december 1984 in port harcourt is a nigerian footballer currently playing for heartland f. Charles, core laboratories, a systematic approach for the prevention and treatment of formation damage caused by asphaltene deposition, paper spe 23810, spe production and facilities, august 1994. Jun 07, 2016 formation damage reduces the rate of flow of hydrocarbons into the wellbore, and thus into the production pipeline. Formation damage of oil reservoirs can seriously impair productivity.
Advances in formation damage assessment and control strategies authors jude o. Usually, the more flowback rate is, the better the permeability recovery is. A significant improvement in the prediction of permeability from wireline logs has been achieved for the niger delta reservoirs using the concept of flow zone indicators developed by amaefule et al based on genetic unit classification as well as the application of neural networks. Leontaritis, affectionately known in the gulf of mexico circles as dr. Permeability prediction using genetic unit averages of flow.
Mar 24, 2005 asphaltene precipitation and deposition during primary oil recovery and resulting reservoir formation damage are described by a phenomenological mathematical model. The first category is the damage caused by fluidfluid. Unlocking hidden reservoir potential through integrated formation damage evaluation spe 115690 and spe 120694 colin mcphee and michael byrne 2. Team for understanding and mitigation of formation damage amaefule et al. See below for the abstract, table of contents, list of figures, list of tables, list of appendices, list of abbreviations and chapter one. Formation damage can be caused by many operational factors such as clay swelling, fine migration and deposition, particle invasion, and plugging during drilling operations.
Pdf evaluation of formation damage and assessment of. Reservoir formation damage, third edition, provides the latest information on the economic problems that can occur during various phases of oil and gas recovery from subsurface reservoirs, including production, drilling, hydraulic fracturing, and workover operations. In order to research the factors that influence the liquid flowback, the tight sand characteristics and gas displacement have. Formation damage evaluation of a sandstone reservoir via. By reducing formation damage, wells can flow at a higher rate, increasing the profitability of the well by moving up the peak production years which means faster payouts. What gets into porous media does not necessarily come out porter usc pte555 cheung 5. He graduated from loyola university of chicagostritch school of medicine in 1986 and specializes in internal medicine. Read download reservoir formation damage pdf pdf download. Asphaltene nearwellbore formation damage modeling journal. Formation damage reduces the rate of flow of hydrocarbons into the wellbore, and thus into the production pipeline. Advances in formation damage assessment and control. Economic implications of formation damage formation damage is a very expensive headache to the oil and gas industry.
Click the download now button to get the complete project work instantly. Chukwuemenka amaefule currently lives in cordova, tn. Swelling of clay minerals in unconsolidated porous media and. Liquid filtration plays a main role in the formation damage.
Bennion,1999 described formation damage as, the impairment of the invisible, by the inevitable and uncontrollable, resulting in an indeterminate reduction of the unquantifiable. However, lines with unity slope belong to clean sandstone formation whereas slopes greater than 1 are expected for shaly formations which alter the equations to some extent. Apr 01, 2005 when during oil production the thermodynamic conditions within the nearwellbore formation lie inside the asphaltene deposition envelope of the reservoir fluid, the flocculated asphaltenes cause formation damage. Oct 16, 2014 associated with san joaquin valley section. A simple nmr methodology for evaluating filter cake. Sometimes chukwuemenka goes by various nicknames including obinna amaefule and chukwuemenka ameafule. Asphwaxs objective is to provide the oil and gas industry with laboratory testing, simulation, and consulting services in equipment development, modeling, problem solving, and chemical applications in the area of. This model is applied using experimental data from laboratory core flow tests. Many tight reservoirs are extremely complex producing oil or gas from multiple layers with low permeabilities that. What gets into porous media does not necessarily come out porter usc pte555. Mar 01, 2014 read a new practical method for determination of critical flow rate in fahliyan carbonate reservoir, journal of petroleum science and engineering on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Evaluation of formation damage and assessment of well productivity of oredo field, edo state, nigeria.
Study of asphaltene precipitation induced formation damage. Background formation damage is a condition which occurs when barriers to. Flowback rate is closely related to the formation permeability recovery. Formation damage evaluation of a sandstone reservoir via pore. Pdf evaluation of formation damage and assessment of well. Mathematically, formation damage is a reduction in the hydrocarbon effective mobility. Core data provide information on various depositional and diagenetic controls on pore geometry. Download the complete chemical engineering project topic and material chapter 15 titled effects of formation damage on oil well productivity here on projects.
Tight sand gas is an important unconventional natural gas. The content of organic matter in blockages is higher than 96% and asphaltene is the main component of the organic matter with nheptane asphaltene. Common formation damage mechanisms bennion, 1999, bennion and thomas, 1991, bishop, 1997 4. Join facebook to connect with amaefule godwin and others you may know. Formation damage refers to the modification of rock structure and petrophysical and mechanical properties due to human factors such as fluid flooding amaefule et al. Facebook gives people the power to share and makes the world more open and connected. Abstract understanding complex variations in pore geometry within different lithofacies is the key to improved reservoir description and exploitation. Describing its impact, amaefule et al 1988 described it as an expensive headache to the oil and gas industry. Reservoir formation damage by faruk civan and faruk civan, phd. A simple nmr methodology for evaluating filter cake properties and. Formation damage assessment, control, and remediation. Formation damage fd is an expensive headache to the oil and gas industry amaefule fd assessment, control and remediation are among the most important issues to be resolved for efficient exploitation of hydrocarbon reservoirs energy highlights fd is not necessarily reversible.
Matrix acidizing is used in carbonate formations to create wormholes that connect the formation to the wellbore. Stateoftheart knowledge and valuable insights into the nature of processes and operational practices causing formation damage provides new strategies designed to minimize the impact and avoid formation damage in petroleum reservoirs with the newest drilling, monitoring, and detection techniquesreservoir formation damage, second edition is a. These properties changes such as porosity and permeability decrease, pore radius reduction have strong consequences on oil wells production or fluid injectivity for fracking processes bagci et al. Using core and log data to spe 26436 identify hydraulic flow units and predict permeability in uncored lntervalsavells calculations, the key to enhanced rc. Analyzing tight sand characteristics and its influence on. Before the drill bit penetrates the reservoir domain, the reservoir rock and its.
Celestine amaefule, md is an internal medicine specialist in goldsboro, nc and has been practicing for 32 years. The results demonstrate the ability of microct imaging to investigate formation damage caused by clay swelling and fines migration during flooding. Chukwuemenka amaefule o cordova, tn has court or arrest. Study of asphaltene dispersion and removal for high. Phase trapping and blocking water entrapment in gas reservoirs 5.
It takes a tad of inspiration to think about what we want to create before feeling ready to see it come true, or manifestly visible in our lives. Formation damage assessment, control, and remediation are among the most important issues to be resolved for efficient exploitation of hydrocarbon reservoirs civan, 2005. Modeling formation damage by asphaltene deposition during. Here we thus established a comprehensive core flooding and microct method for evaluating sandstone formation damage. To go from where you are to where you want to be requires a shift in your mind, and ultimately a change in your reality. Nov 21, 2012 many wellbores are blocked by asphaltene deposits, which lead to production problems in the oilfield development process. Reservoir formation damage, third edition, provides the latest information on the economic problems that can occur during various phases of oil and gas recovery from subsurface reservoirs.
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