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ASTM D4631-95(2000)
Standard Test Method for Determining Transmissivity and Storativity of Low Permeability Rocks by In Situ Measurements Using Pressure Pulse Technique
STANDARD published on 1.1.2000
The information about the standard:
Designation standards: ASTM D4631-95(2000)
Note: WITHDRAWN
Publication date standards: 1.1.2000
SKU: NS-27959
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: American technical standard
Category: Technical standards ASTM
Annotation of standard text ASTM D4631-95(2000) :
Keywords:
borehole drilling, discontinuities, fault zones, field testing flow and flow rate, ground water, permeability, pressure testing, pulse testing, rock, saturation, storativity, transmissivity, viscosity, water, water saturation, ICS Number Code 93.020 (Earth works. Excavations. Foundation construction. Underground works)
Additional information
| 1. Scope |
|
1.1 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. 1.2 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. 1.3 The values stated in SI units are to be regarded as the standard. 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. /p> |
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