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ASTM D4631

1995 Edition, October 10, 1995

Complete Document

Standard Test Method for Determining Transmissivity and Storativity of Low Permeability Rocks by In Situ Measurements Using Pressure Pulse Technique

Includes all amendments and changes through Reapproval Notice , 2008


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Product Details:

  • Revision: 1995 Edition, October 10, 1995
  • Published Date: January 2008
  • Status: Not Active, See comments below
  • Document Language: English
  • Published By: ASTM International (ASTM)
  • Page Count: 8
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This test method covers a field procedure for determining the transmissivity and storativity of geological formations having permeabilities lower than 10-3 µm2 (1 millidarcy) using the pressure pulse technique.

The transmissivity and storativity values determined by this test method provide a good approximation of the capacity of the zone of interest to transmit water, if the test intervals are representative of the entire zone and the surrounding rock is fully water saturated.

The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.

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.