Create rock physics and geomechanical attributes from well log8 jul 2014. In this report, we discuss a new approach to the derivation of the rock physics. Rock physics provides the connections between elastic properties measured at the surface of the earth, within the borehole environment or in the laboratory with the intrinsic properties of rocks, such as mineralogy, porosity, pore shapes, pore fluids, pore pressures, permeability, viscosity, stresses and overall. In this report, i discuss several new approaches for linking rock physics to the seismic reservoir. Statistical rock physics for estimating uncertainty in. Per is a coauthor of the book quantitative seismic interpretation cambridge university press, 2005. Pdf seismic screening for hydrocarbon prospects using rock. He also talks with us about how developing an effective rock physics model requires the integration of geological, geophysical, geochemical, and petrophysical information. This allows us to evaluate the nonuniqueness of our predictions. Rockphysics modeling of stress sensitivity and 4d time shifts in patchy cemented sandstones application to the visund field, north sea.
Rock physics has evolved to become a key tool of reservoir. The field of rock physics represents the link between qualitative geological parameters and quantitative geophysical measurements. This comprehensive textbook presents an overview of petroleum. Combining burial history and rockphysics modeling to. Seismic screening for hydrocarbon prospects using rockphysics. Isoprobability surfaces resulting from a statistical rock physics analysis of near and faroffset seismic impedances. It will appear in their european stores in the next day or two, and in canada. The authors provide an integrated methodology and practical tools for quantitative interpretation, uncertainty assessment, and characterization of subsurface.
Pdf the field of rock physics represents the link between qualitative. Applying rock physics tools to reduce interpretation risk by per avseth. Per age avseth, ipt department of petroleum engineering and applied geophysics submission date. Introduction work flow the rock physics link between seismic and geology uncertainty in rock property estimation seismic information statistical class. Quantitative seismic interpretation using rock physics. We know from laboratory work and theory that poor sorting can also in. Rational rock physics for improved velocity prediction and. One of our favorite examples of the need for rock physics is shown in plate 1. We can begin to interpret the image without using much rock physics, because of the striking and recognizable shape of the feature. Quantitative seismic interpretation pdf print version. Increasingly over the last decade, rock physics has become an integral part of quantitative seismic interpretation and stands out as a key technology in petroleum geoscience. Explorational rock physics the link between geological processes and geophysical observables. Quantitative seismic interpretation demonstrates how rock physics can be applied to predict reservoir parameters, such a. Pdf explorational rock physics the link between geological.
Welcome to rock physics resourcesinternational association of rock physicists. Electures international association of rock physicists. Jun 10, 2010 per s research interests include applied rock physics, and avo analysis, for quantitative seismic exploration and reservoir characterization. On integration of rock physics in quantitative seismic. Rockphysics templates for clayrich source rocks semantic scholar. Quantitative seismic interpretation using inverse rock. Quantitative interpretation using inverse rockphysics. The rock physics template rpt odegaard and avseth 2003 proposed a technique they called the rock physics template rpt, based on theory by dvorkin and nur 1996, in which the fluid and mineralogical content of a reservoir could be estimated on a crossplot of v p v s ratio against acoustic impedance, as shown here.
Extracting information about reservoir quality from seismic data is a key challenge in exploration, appraisal and production of hydrocarbons. Comparingmlda,pdf, and nnclassification results inthe type well. As with the deterministic method, the pdf classification functions can then be projected. Chapter 18 explorational rock physics the link between geological processes and geophysical observables per avseth the field of rock physics represents. The petroleum industry is increasing its focus on the exploration of reservoirs in turbidite systems. Download it once and read it on your kindle device, pc, phones or tablets. Read quantitative seismic interpretation applying rock physics tools to reduce interpretation risk by per avseth available from rakuten kobo. Also, rock physics modeling can be utilized to build. Integrating statistical rock physics and sedimentology for. In the synthetic case, the calibration process is trivial as we have full control over all the parameters.
Welcome to an interview with per avseth, who discusses rock physics and quantitative seismic interpretation. Exploring the link between burial history and rock physics. Per avseth, senior geophysicist, norskhydro, norway, geophysics department. Applying rock physics tools to reduce interpretation risk kindle edition by avseth, per, mukerji, tapan, mavko, gary. For this, we utilize rockphysics templates avseth et al. Seismic screening for hydrocarbon prospects using rockphysics attributes. Seismic screening for hydrocarbon prospects using rock.
The work space for rock physics analysis is the rock physics plane that may be a velocityporosity. We demonstrate how to perform quantitative reservoir characterization by using inverse rock physics modelling on seismic inversion data. Rock physics templates have been developed as a tool to better discriminate the rock quality effect from the pore fluid effect odegaard and avseth, 2004, see figure 3, where the advantage of the shear wave information is included in the vpvs ratio, a parameter. Apr, 2019 rock physics modelling based on depositional and burial history of barents sea sandstones. Pdf rockphysics diagnostics of depositional texture, diagenetic. Applying rock physics tools to reduce interpretation risk by per avseth july 30 2010 to make your spare time far more colorful. Quantitative seismic interpretation demonstrates how rock physics can be applied to predict reservoir parameters, such as lithologies and pore fluids, from seismically derived attributes. Pdf combining burial history and rockphysics modeling to. Per avseth is a geophysical adviser at tullow oil in oslo, norway, and his areas of interest include quantitative seismic interpretation and rock physics analysis. Quantitative seismic interpretation download ebook pdf. Pdf combining rock physics and sedimentology for seismic. An interview with per avseth february 2014 cseg recorder.
Primarily, we prefer elastic moduliporosity planes to correlate fluid effects change in bulk modulus in comparison with velocityporosity planes for diagnosing rock. Demonstrating how rock physics can be applied to predict reservoir parameters, such as lithologies and pore fluids, from seismically derived attributes, this volume provides an integrated methodology and. Per avseth, norunn skjei and gary mavko, rockphysics modeling of stress sensitivity and 4d time shifts in patchy cemented sandstones application to the visund field, north sea, the leading edge, 10. Quantitative seismic interpretation ebook by per avseth. Search and discovery featured articles radiometric analysis messinian salinity crisis wedgeshaped thrusts rift drift.
Rockphysics templates rpt establish a link between the elastic properties e. Per was the seg honorary lecturer in europe in 2009. However, these sedimentary environments are often characterized by very complex sand distributions. Quantitative seismic interpretation by avseth, per ebook. We use combined burial history and rock physics modeling of sand and shale to predict expected amplitude variation with offset avo signatures and seismic fluid sensitivities for a given burial history. Accounting for nonuniform contacts and heterogeneous stress fields in the effective media approximation with applications to r bachrach, p avseth geophysics 73 6, e197e209, 2008. Per has taught applied rock physics courses for several oil companies and has served as course instructor at eage educational days in london and moscow. He is also an adjunct professor in applied geophysics at the norwegian university of science and technology ntnu in trondheim, norway. Rock physics and sedimentology for quantitative seismic. For unconsolidated to cemented sandstones with relatively high porosity larger than 20%, granular medium models are often applied avseth et al. Per avseth at norwegian university of science and technology. Quantitative seismic interpretation using rock physics templates case examples from the zumba field taufik maulana petroleum geosciences supervisor. Rock physics template rpt analysis of well logs for. Introduction to rock physics chapter 1 quantitative.
All content in this area was uploaded by per avseth on mar 19, 2014. The introduction of rock physics templates odegaard and avseth 2004 as a tool for interpretation and. Rockphysics modeling guided by depositional and burial. For this type of modeling, the amount and localization of the cement within the grain structure are the main geometrical input, along with the average number of contact points per grain coordination number. Integrating statistical rock physics and sedimentology for quantitative seismic interpretation. Download and read online quantitative seismic interpretation.
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