66th EAGE Conference & Exhibition

A003 WEYBURN FIELD: FROM INTEGRATED 4D 9C SEISMIC ANALYSIS TO FLOW SIMULATION Introduction Enhanced oil recovery through CO2 injection is a commercially proven technology and allows additional recovery of typically 10-15% of the OOIP. Multicomponent time-lapse seismic data provide a valuable insight on dynamics of a reservoir. The baseline data provide information static reservoir characterization including possible interconnected fracture zones. Analysis of seismic data acquired over the same area but at different periods in time helps to monitor fluid front movement assists in detecting changes in rock properties caused by CO2 injection allows optimization of the field production. Integrating the

A006 CHARACTERIZATION OF HYDRAULIC ROCK PROPERTIES USING PROBABILITY OF INDUCED MICROSEISMICITY Abstract 1 In this paper we present a new approach for estimating the hydraulic parameters of rocks using an analysis of the spatial distribution of microseismic events induced by fluid injection. Such a monitoring of microseismicity can be used to characterize rocks in terms of hydraulic properties. Knowledge about these properties is important especially for an optimized developement of geothermal or hydrocarbon reservoirs. Our approach is based on the hypothesis that the propagation of triggering of injection-induced microseismic events can be described by a diffusive process of pore pressure

1 A008 RESERVOIR CHARACTERISATION BASED ON SEISMICITY INDUCED AFTER THE END OF FLUID INJECTIONS M. PAROTIDIS 1 S.A. SHAPIRO 1 E. ROTHERT 1 1 Freie Universitaet Berlin Department of Geophysics Malteserstr. 74-100 12249 Berlin Germany Abstract. This study concentrates on events triggered by borehole fluid injections especially after the end of injection. It is assumed that pore-pressure diffusion is the main triggering mechanism. Based on the theory of poroelasticity we derive an equation that describes the distance from injection point where seismicity extinguishes at a given time after the end of fluid injection. We call this distance the back front

A010 INTEGRATED GEOSCIENCES APPROACH TO OPTIMAL DEVELOPMENT OF A DEEP HP/HT COMPLEX FIELD: DEEP JUSEPIN CASE (VENEZUELA) E. PITRAT A. LARA S. DELAHAYE F. LIMONGI M. DURANDEAU TOTAL OIL & GAS VENEZUELA Summary Jusepin Field is located in the North Monagas State of Venezuela in the trend of the El Furrial. Deep Jusepin field proved a difficult reservoir to develop due to its characteristics: Deep HP/HT field presence of a complex reservoir fluid (highly under-saturated critical fluid with problematic behaviour of asphaltenes) complex structural setting partially blind seismic. The field was developed from 1997/1998 under natural depletion with a mix

A012 SEISMIC FACIES ANALYSIS FOR FLUVIAL DEPOSITIONS CHARACTERIZATION THE FERGANA VALLEY EXAMPLE 1 Abstract Seismic facies analyses have become an important part of present day exploration and development of oil and gas plays. A large part of the value of seismic facies analysis depends however on whether or not local geological factors have been taken into account correctly. The importance of this is even more dominant when dealing with lithological or combined structural-lithological traps. To illustrate such seismic facies analysis this paper presents the results of a study of the deep oil and gas field in the Fergana Valley a

A014 COMBINED RESERVOIR CHARACTERIZATION AND MODELING Summary 1 Often the ultimate goal of G&G exploration efforts is final integration of all knowledge regarding a field into a dynamic reservoir model. Geophysical geological and engineering data are incorporated in a subsurface flow-properties model. The model is matched to production history and used for forecasting and economic evaluation. This model is traditionally constructed after the main reservoir characterization stage and little interaction is undertaken or even feasible between the property modeling and the geocellular modeling. This paper presents a combined reservoir characterization and modeling workflow for a producing field in the southern

A016 PRODUCTION ASSESSMENT OF RESERVOIR MODELS CONSTRUCTED WITH THE USE OF 3D SEISMIC DATA Abstract 1 This paper describes a study undertaken to appraise spatially complex hydrocarbon reservoir models constructed with the use of 3D post-stack seismic data and well logs. Developments are centered about the interpretation of data acquired in an active gas field in the deepwater Gulf of Mexico. The availability of time records of fluid production provides an independent way to quantify the accuracy and reliability of several methods commonly employed to construct reservoir models. We make use of geostatistical inversion to construct spatial distributions of porosity

Experimental investigation on submarine channels inception LANCIEN Pierre LAJEUNESSE Eric MÉTIVIER François IPGP CACAS Marie-Christine IFP Submarine mega fans and their associated canyons have long attracted the attention of a large community in the Earth sciences because they record the history of past erosional processes. As such their morphology and sedimentary infill may be of invaluable use to unravel past climatic and tectonic evolutions. Yet despite an important corpus of research on their structural characteristics [1-10] we lack a well accepted quantitative description for the dynamics of the formation and growth of these sedimentary systems. One of the main reasons

A028 BASIN 4 OF THE BRAZOS-TRINITY SLOPE SYSTEM Introduction 1 We have executed an ultra-high resolution 3-D investigation of the stratigraphy and basin fill history of a 200 km 2 Pleistocene intra-slope basin in the western Gulf of Mexico. This basin represents the southernmost portion of the Brazos-Trinity Slope System; a system of four basins linked by submarine channels (Basin 4; Winker 1998; Beaubouef and Friedman 2000; Badalini et al. 2000; Beaubouef et al. 2003a b c and references therein). This system is located down-dip of the ancestral Brazos and Trinity rivers and their associated deltas (Fig. 1a). These shelf

A030 APPLICATION OF LASERS TO BUILD MODELS OF DEEPWATER RESERVOIRS: INSIGHTS FROM THE SOLITARY CHANNEL TABERNAS BASIN SOUTHERN SPAIN Introduction 1 Lidar (light detection and ranging) applications are improving the accuracy and speed of outcrop analysis. The technology provides the ability to visualize spatially correct digital outcrop data in real time and to interrogate the outcrop by positioning ourselves in an infinite number of “virtual” vantage points. We can correlate bounding surfaces and interpret faults on actual outcrop data similar to 3-D seismic data volumes. In addition laser-generated data are easily prepared for rapid emplacement in 3- D modeling software