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Description of ASTM-D4520 2013ASTM D4520 - 13Standard Practice for Determining Water Injectivity Through the Use of On-Site FloodsActive Standard ASTM D4520 | Developed by Subcommittee: D19.05 Book of Standards Volume: 11.02 ASTM D4520Significance and Use 5.1 The injectivity of a water is best determined by measurements as near to the well as possible to minimize changes in water properties due to air contact and time. This practice describes how core flow tests are carried out near the well. 5.2 This practice permits the differentiation of permeability losses from the effects of chemical interaction of water and rock and from the effects of plugging by suspended solids. The procedure can be utilized to estimate the chemical and filtration requirements for the full-scale injection project. 5.3 Application of the test results to injection wells requires consideration of test core selection and geometry effects. 5.4 This practice as described assumes that the water does not contain free oil or other immiscible hydrocarbons. The presence of free oil would require the method to be modified to account for the effect of oil saturation in the test cores on the water permeability. 1. Scope 1.1 This practice covers a procedure for conducting on-site core flood tests to determine the filtration and chemical treatment requirements for subsurface injection of water. 2 , 3 1.2 This practice applies to water disposal, secondary recovery, and enhanced oil recovery projects and is applicable to injection waters with all ranges of total dissolved solids contents. 1.3 The values stated in SI units are to be regarded separately as standard. The values stated in each system are mathematical conversions and may not be exact equivalents; therefore, each system shall be used independently of the other. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
ASTM Standards D420 Guide to Site Characterization for Engineering Design and Construction Purposes D653 Terminology Relating to Soil, Rock, and Contained Fluids D1129 Terminology Relating to Water D2434 Test Method for Permeability of Granular Soils (Constant Head) D4404 Test Method for Determination of Pore Volume and Pore Volume Distribution of Soil and Rock by Mercury Intrusion Porosimetry American Petroleum Institute Standards API RP40 Recommended Practice for Core-Analysis ProcedureKeywords enhanced oil recovery; permeability; secondary recovery; water disposal; water injectivity ; ICS Code ICS Number Code 13.080.40 (Hydrological properties of soil) DOI: 10.1520/D4520-13 ASTM International is a member of CrossRef. ASTM D4520The following editions for this book are also available...This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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