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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
7 стр.
Заменен
Печатное изданиеЭлектронный (pdf)
93.60 $ (включая НДС 20%)
Разработчик:
Зарубежные/ASTM
ICS:
93.020 Earthworks. Including geotechnics / Земляные работы. Выемка грунта. Сооружение фундаментов. Подземные работы. Включая геотехнику
Сборник (ASTM):
04.08 Soil and Rock (I): D420 – D5876 / Грунт и Горные породы (I): D420 – D5876
Тематика:
Geotechnical Engineering
Описание
Область применения

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>

Ключевые слова:
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