ASTM D 4630 Standard Test Method for Determining Transmissivity and Storage Coefficient of Low-Permeability Rocks by In Situ Measurements Using the Constant Head Injection Test

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ASTM D 4630 Document Information:

Title
Standard Test Method for Determining Transmissivity and Storage Coefficient of Low-Permeability Rocks by In Situ Measurements Using the Constant Head Injection Test

ASTM International

Publication Date:
Oct 10, 1996

Scope:

This test method covers a field procedure for determining the transmissivity and storativity of geological formations having permeabilities lower than 10⁻³µm² (1 millidarcy) using constant head injection.

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.

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.

Keywords:

borehole

constant head testing

flow

in situ

fault-zones

field testing

flow and flow rate

permeability

pressure testing

rock

saturation

storativity

transmissivity

viscosity

water

water saturation

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