Analysis and Interpretation of 2D Seismic Data Over The
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SPE 112246 Rapid Model Updating with Right-Time Data
SPE 112246 Rapid Model Updating with Right-Time Data - Ensuring Models Remain Evergreen for Improved Reservoir Management Stephen J. Webb, David E. Revus, Angela M. Myhre, Roxar, Nigel H. Goodwin, K. Neil B. Dunlop, John R. Heritage, Energy Scitech Ltd. Copyright 2008, Society of Petroleum Engineers evergreen and providing the most up-to-date basis for the This paper was prepared for presentation at the 2008 SPE Intelligent Energy Conference making of important reservoir management decisions. and Exhibition held in Amsterdam, The Netherlands, 25–27 February 2008. This paper was selected for presentation by an SPE program committee following review of information contained in an abstract submitted by the author(s). Contents of the paper Introduction have not been reviewed by the Society of Petroleum Engineers and are subject to Since the early days of reservoir simulation, history correction by the author(s). The material does not necessarily reflect any position of the 1 Society of Petroleum Engineers, its officers, or members. Electronic reproduction, matching has been identified as one of the best methods distribution, or storage of any part of this paper without the written consent of the Society of Petroleum Engineers is prohibited. Permission to reproduce in print is restricted to an of validating a reservoir model’s predictive capabilities. abstract of not more than 300 words; illustrations may not be copied. The abstract must Often long periods of time have been spent adjusting the contain conspicuous acknowledgment of SPE copyright. reservoir description so that the reservoir simulator’s calculated results match the observed data from the reservoir. -
Deep Borehole Placement of Radioactive Wastes a Feasibility Study
DEEP BOREHOLE PLACEMENT OF RADIOACTIVE WASTES A FEASIBILITY STUDY Bernt S. Aadnøy & Maurice B. Dusseault Executive Summary Deep Borehole Placement (DBP) of modest amounts of high-level radioactive wastes from a research reactor is a viable option for Norway. The proposed approach is an array of large- diameter (600-750 mm) boreholes drilled at a slight inclination, 10° from vertical and outward from a central surface working site, to space 400-600 mm diameter waste canisters far apart to avoid any interactions such as significant thermal impacts on the rock mass. We believe a depth of 1 km, with waste canisters limited to the bottom 200-300 m, will provide adequate security and isolation indefinitely, provided the site is fully qualified and meets a set of geological and social criteria that will be more clearly defined during planning. The DBP design is flexible and modular: holes can be deeper, more or less widely spaced, at lesser inclinations, and so on. This modularity and flexibility allow the principles of Adaptive Management to be used throughout the site selection, development, and isolation process to achieve the desired goals. A DBP repository will be in a highly competent, low-porosity and low-permeability rock mass such as a granitoid body (crystalline rock), a dense non-reactive shale (chloritic or illitic), or a tight sandstone. The rock matrix should be close to impermeable, and the natural fractures and bedding planes tight and widely spaced. For boreholes, we recommend avoiding any substance of questionable long-term geochemical stability; hence, we recommend that surface casings (to 200 m) be reinforced polymer rather than steel, and that the casing is sustained in the rock mass with an agent other than standard cement. -
2D Seismic Survey in Block AD- 10, Offshore Myanmar
2D Seismic Survey in Block AD- 10, Offshore Myanmar Initial Environmental Examination 02 December 2015 Environmental Resources Management www.erm.com The world’s leading sustainability consultancy 2D Seismic Survey in Block AD-10, Environmental Resources Management Offshore Myanmar ERM-Hong Kong, Limited 16/F, Berkshire House 25 Westlands Road Initial Environmental Examination Quarry Bay Hong Kong Telephone: (852) 2271 3000 Facsimile: (852) 2723 5660 Document Code: 0267094_IEE_Cover_AD10_EN.docx http://www.erm.com Client: Project No: Statoil Myanmar Private Limited 0267094 Summary: Date: 02 December 2015 Approved by: This document presents the Initial Environmental Examination (IEE) for 2D Seismic Survey in Block AD-10, as required under current Draft Environmental Impact Assessment Procedures Craig A. Reid Partner 1 Addressing MOECAF Comments, Final for MOGE RS CAR CAR 02/12/2015 0 Draft Final RS JNG CAR 31/08/2015 Revision Description By Checked Approved Date Distribution Internal Public Confidential CONTENTS 1 EXECUTIVE SUMMARY 1-1 1.1 PURPOSE AND EXTENT OF THE IEE REPORT 1-1 1.2 SUMMARY OF THE ACTIVITIES UNDERTAKEN DURING THE IEE STUDY 1-2 1.3 PROJECT ALTERNATIVES 1-2 1.4 DESCRIPTION OF THE ENVIRONMENT TO BE AFFECTED BY THE PROJECT 1-4 1.5 SIGNIFICANT ENVIRONMENTAL IMPACTS 1-5 1.6 THE PUBLIC CONSULTATION AND PARTICIPATION PROCESS 1-6 1.7 SUMMARY OF THE EMP 1-7 1.8 CONCLUSIONS AND RECOMMENDATIONS OF THE IEE REPORT 1-8 2 INTRODUCTION 2-1 2.1 PROJECT OVERVIEW 2-1 2.2 PROJECT PROPONENT 2-1 2.3 THIS INITIAL ENVIRONMENTAL EVALUATION (IEE) -
ADUA Azerbaijan 2D-3D Seismic Survey Environmental Impact
Environmental Impact Assessment (EIA) for 2D-3D Doc. No. seismic survey in the Ashrafi-Dan Ulduzu-Aypara (ADUA) Exploration area, Azerbaijan Valid from Rev. no. 0 01.03.2019 Environmental Impact Assessment (EIA) for 2D-3D seismic survey in the Ashrafi-Dan Ulduzu-Aypara (ADUA) Exploration area, Azerbaijan March 2019 Environmental Impact Assessment (EIA) for 2D-3D seismic survey in the Ashrafi-Dan Ulduzu-Aypara (ADUA) Exploration area, Azerbaijan Valid from 01.03.2019 Rev. no. 0 Table of contents Acronyms ...................................................................................................................................................... 10 Executive Summary ...................................................................................................................................... 13 Regulatory Framework .................................................................................................................................... 14 Project Description .......................................................................................................................................... 17 Description of the Environmental and Social Baseline ................................................................................... 18 Impact Assessment and Mitigation ................................................................................................................. 22 Environmental Management Plan .................................................................................................................. -
Types of Seismic Energy Sources for Petroleum Exploration in Desert, Dry-Land, Swamp and Marine Environments in Nigeria and Other Sub- Saharan Africa
International Journal of Science and Research (IJSR) ISSN (Online): 2319-7064 Index Copernicus Value (2015): 78.96 | Impact Factor (2015): 6.391 Types of Seismic Energy Sources for Petroleum Exploration in Desert, Dry-Land, Swamp and Marine Environments in Nigeria and Other Sub- Saharan Africa Madu Anthony Joseph Chinenyeze Department of Geology, College of Physical And Applied Sciences, Michael Okpara University of Agriculture Umudike, Abia State, Nigeria Abstract: The various seismic energy sources used for petroleum exploration in Nigeria (Niger Delta, Benue Trough, Chad Basin) and sub-Saharan Africa (Niger Republic, Sudan, Ethiopia inclusive) have been undergoing improvement over the years. Explosive source usually Dynamite, Airgun, Thumper/Weight Drop, and Vibrators are remarkable seismic energy sources today with frequencies for primary seismic production, bandwidth 10Hz – 75Hz. These sources contribute to higher S/N ratio and greater bandwidth. The spectral analysis of shot records from the afore-mentioned energy sources confirm their corresponding suitability, effectiveness, and adequacy for wave propagation into the ground, until it encountered an impedance in the subsurface. The latter condition results in reflections and refractions which are picked by the receivers or sensors (geophones or hydrophones). The spectral analyses from these selected sources reveal comparable range of signal frequencies. The Thumpers or vibrator shots at any given shot point location SP, is repeated severally for the purpose of enhancement and then summed or stacked. This is also called vibrator sweep, as it vibrates repeatedly according to specification of program issue. In the repetition of frequency sweep, amplitude increases are optimized to a specific level within the same duration. -
Reservoir Simulation-Based Modeling for Characterizing Longwall Methane Emissions and Gob Gas Venthole Production
Reservoir simulation-based modeling for characterizing longwall methane emissions and gob gas venthole production C.O. Karacan , G.S. Esterhuizen, S.J. Schatzel, W.P. Diamond National Institute for Occupational Safety and Health (NIOSH), PiPinsburgh Research Laboratory, United States Abstract Longwall mining alters the fluid-flow-related reservoir properties of the rocks overlying and underlying an extracted panel due to fracturing and relaxation of the strata. These mining-related disturbances create new pressure depletion zones and new flow paths for gas migration and may cause unexpected or uncontrolled migration ofgas into the underground workplace. One common technique to control methane emissions in longwall mines is to drill vertical gob gas ventholes into each longwall panel to capture the methane within the overlying fractured strata before it enters the work environment. Thus, it is important to optimize the well parameters, e.g., the borehole diameter, and the length and position of the slotted casing interval relative to the hctured gas-bearing zones. This paper presents the development and results of a comprehensive, "dynamic," three-dimensional reservoir model of a typical multipanel Pittsburgh coalbed longwall mine. The alteration of permeability fields in and above the panels as a result of the mining- induced disturbances has been estimated from mechanical modeling of the overlying rock mass. Model calibration was performed through history matching the gas production &om gob gas ventholes in the study area. Results presented in this paper include a simulation of gas flow patterns from the gas-bearing zones in the overlying strata to the mine environment, as well as the influence of completion practices on optimizing gas production from gob gas ventholes. -
Hydrocarbon Reservoir Modeling: Comparison Between Theoretical and Real Petrophysical Properties from the Namorado Field (Brazil) Case Study
Hydrocarbon reservoir modeling: comparison between theoretical and real petrophysical properties from the Namorado Field (Brazil) case study. Hashimoto, Marcos Deguti, Student from the Master in Oil Engineering E-mail: [email protected] 1. Abstract In reservoir characterization and modeling, due to information-acquisition’s high costs, frequently only indirect measurements of the subsurface properties such as seismic reflection data is available. In the worst-case scenario, only regional geological information is at disposal. In an attempt to provide deeper insights over the study area, with low costs, modeling synthetic reservoirs has been a reliable tool to better characterize reservoir/prospects. In this work two synthetic hydrocarbons reservoirs were modelled recurring to two different approaches to characterize Earth’s subsurface petrophysical (facies, porosity and permeability) and elastic (P-wave, S-wave and density) properties. In the second half of 2013, during the IST (Instituto Superior Técnico) Internship, a synthetic reservoir was conceived and modeled using Namorado Field’s (Campos Basin, Rio de Janeiro, Brazil) as reference. During this intern public data, knowledge, papers, books and dissertations were gathered. In order to validate and certify this outcome, a new synthetic reservoir was proposed, but this time using real data for this field provided by the Brazilian Oil & Gas Agency (ANP). This dissertation addresses the comparison between the theoretical and real synthetic reservoir results, validating the first reservoir step-by-step. The major conclusion reached confirms that the theoretical synthetic reservoir outputs reliable results, however with caution in some of the modelled properties. Keywords: Hydrocarbon synthetic reservoir, Reservoir Modeling, Rock Physics Model, Petrophysical properties, Namorado Field, Campos Basin (Brazil). -
Confirmation of Data-Driven Reservoir Modeling Using Numerical Reservoir Simulation
Graduate Theses, Dissertations, and Problem Reports 2019 CONFIRMATION OF DATA-DRIVEN RESERVOIR MODELING USING NUMERICAL RESERVOIR SIMULATION Al Hasan Mohamed Al Haifi [email protected] Follow this and additional works at: https://researchrepository.wvu.edu/etd Part of the Petroleum Engineering Commons Recommended Citation Al Haifi, Al Hasan Mohamed, "CONFIRMATION OF DATA-DRIVEN RESERVOIR MODELING USING NUMERICAL RESERVOIR SIMULATION" (2019). Graduate Theses, Dissertations, and Problem Reports. 3835. https://researchrepository.wvu.edu/etd/3835 This Thesis is protected by copyright and/or related rights. It has been brought to you by the The Research Repository @ WVU with permission from the rights-holder(s). You are free to use this Thesis in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you must obtain permission from the rights-holder(s) directly, unless additional rights are indicated by a Creative Commons license in the record and/ or on the work itself. This Thesis has been accepted for inclusion in WVU Graduate Theses, Dissertations, and Problem Reports collection by an authorized administrator of The Research Repository @ WVU. For more information, please contact [email protected]. CONFIRMATION OF DATA-DRIVEN RESERVOIR MODELING USING NUMERICAL RESERVOIR SIMULATION Al Hasan Mohamed Mohamed Al Haifi Thesis submitted to the Benjamin M. Statler College of Engineering and Mineral Resources at West Virginia University in partial fulfillment of the requirements -
Techniques for Modeling Complex Reservoirs and Advanced Wells
TECHNIQUES FOR MODELING COMPLEX RESERVOIRS AND ADVANCED WELLS A DISSERTATION SUBMITTED TO THE DEPARTMENT OF ENERGY RESOURCES ENGINEERING AND THE COMMITTEE ON GRADUATE STUDIES OF STANFORD UNIVERSITY IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY Yuanlin Jiang December 2007 °c Copyright by Yuanlin Jiang 2008 All Rights Reserved ii I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. Dr. Hamdi Tchelepi Principal Advisor I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. Dr. Khalid Aziz Advisor I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. Dr. Roland Horne Approved for the University Committee on Graduate Studies. iii Abstract The development of a general-purpose reservoir simulation framework for coupled systems of unstructured reservoir models and advanced wells is the subject of this dissertation. Stanford's General Purpose Research Simulator (GPRS) serves as the base for the new framework. In this work, we made signi¯cant contributions to GPRS, in terms of architectural design, extensibility, computational e±ciency, and new advanced well modeling capabilities. We designed and implemented a new architectural framework, in which the fa- cilities (man-made) model is treated as a separate component and promoted to the same level as the reservoir (natural) component. -
UNITED STATES DEPARTMENT of the INTERIOR BUREAU of OCEAN ENERGY MANAGEMENT SITE-SPECIFIC ENVIRONMENTAL ASSESSMENT GEOLOGICAL &Am
GEOPHYSICAL EXPLORATION FOR MINERAL RESOURCES SEA NO. L19-009 UNITED STATES DEPARTMENT OF THE INTERIOR BUREAU OF OCEAN ENERGY MANAGEMENT GULF OF MEXICO OCS REGION NEW ORLEANS, LOUISIANA SITE-SPECIFIC ENVIRONMENTAL ASSESSMENT OF GEOLOGICAL & GEOPHYSICAL SURVEY APPLICATION NO. L19-009 FOR SHELL OFFSHORE INC. April 2, 2019 RELATED ENVIRONMENTAL DOCUMENTS GulfofMexico OCS Proposed Geological and Geophysical Activities Westem, Central, and Eastem Planning Areas Final Programmatic Environmental Impact Statement (OCS EIS/EA BOEM 2017-051) GulfofMexico OCS Oil and Gas Lease Sales: 2017-2022 GulfofMexico Lease Sales 249, 250, 251, 252, 253, 254, 256, 257, 259, and 261 Final Environmental Impact Statement (OCS EIS/EA BOEM 2017-009) Gulf ofMexico OCS Lease Sale Final Supplemental Environmental Impact Statement 2018 (OCS EIS/EA BOEM 2017-074) FINDING OF NO SIGNIFICANT IMPACT (FONSI) The Bureau of Ocean Energy Management (BOEM) has prepared a Site-Specific Environmental Assessment (SEA) (No. L19-009) complying with the National Environmental Policy Act (NEPA). NEPA regulations under the Council on Environmental Quality (CEQ) (40 CFR § 150 E3 and § 1508.9), die United States Department of the Interior (DOI) NEPA implementing regulations (43 CFR § 46), and BOEM policy require an evaluation of proposed major federal actions, which under BOEM jurisdiction includes approving a plan for oil and gas exploration or development activity on the Outer Continental Shelf (OCS). NEPA regulation 40 CFR § 1508.27(b) requires significance to be evaluated in terms of -
Paper 4: Seismic Methods for Determining Earthquake Source
Paper 4: Seismic methods for determining earthquake source parameters and lithospheric structure WALTER D. MOONEY U.S. Geological Survey, MS 977, 345 Middlefield Road, Menlo Park, California 94025 For referring to this paper: Mooney, W. D., 1989, Seismic methods for determining earthquake source parameters and lithospheric structure, in Pakiser, L. C., and Mooney, W. D., Geophysical framework of the continental United States: Boulder, Colorado, Geological Society of America Memoir 172. ABSTRACT The seismologic methods most commonly used in studies of earthquakes and the structure of the continental lithosphere are reviewed in three main sections: earthquake source parameter determinations, the determination of earth structure using natural sources, and controlled-source seismology. The emphasis in each section is on a description of data, the principles behind the analysis techniques, and the assumptions and uncertainties in interpretation. Rather than focusing on future directions in seismology, the goal here is to summarize past and current practice as a companion to the review papers in this volume. Reliable earthquake hypocenters and focal mechanisms require seismograph locations with a broad distribution in azimuth and distance from the earthquakes; a recording within one focal depth of the epicenter provides excellent hypocentral depth control. For earthquakes of magnitude greater than 4.5, waveform modeling methods may be used to determine source parameters. The seismic moment tensor provides the most complete and accurate measure of earthquake source parameters, and offers a dynamic picture of the faulting process. Methods for determining the Earth's structure from natural sources exist for local, regional, and teleseismic sources. One-dimensional models of structure are obtained from body and surface waves using both forward and inverse modeling. -
Subsea Sampling Systems MARS Multiple Application Reinjection System Configurations
Subsea Sampling Systems MARS multiple application reinjection system configurations APPLICATIONS Almost all technical and economic studies in the oil industry require an understanding of the reservoir ■ Production monitoring fluids. MARS* multiple application reinjection system sampling technology enables the capture of ■ Reservoir modeling and management a representative, uncontaminated sample from multiphase flow, in which the sample has the same molecules in the same proportions as the flow at the sampling point where all three phases are ■ Flow assurance in equilibrium. ■ Well intervention ■ Each phase is enriched and captured individually to collect sufficient volume of sample from ■ Subsea processing strategically chosen phase-rich sampling points. ■ EOR ■ No pressure or temperature drop should occur during sampling to maintain equilibrium BENEFITS between phases. ■ Enables representative subsea sampling ■ Each phase is captured and physically or mathematically recombined for reservoir fluids properties. throughout life of field ■ Mitigates risk and enhances flow assurance management ■ Optimizes multiphase flowmeter calibration and performance ■ Increases production and recovery rates ■ Reduces capex FEATURES ■ Flexibility for integration into subsea hardware and for various sampling applications ■ Three-phase representative sampling from multiple wells in a single dive ■ Phase detection and enrichment ■ Complete chain of custody throughout sample journey ■ Proven technology ■ Ideal solution for greenfield architecture ■ Retrofit