The mutiple-step drawdown test outlined in this paper permits the de- termination of the well loss and of the "effective radius" of the well. The trend of drawdown is observed in the pumped well and in one or more near-by observation wells as the discharge is increased in stepwise ...
Step-Drawdown Test?A step-drawdown test (or step test) is a single-well pumping test designed to investigate the performance of a pumping well under controlled variable discharge conditions. In a step-drawdown test, the discharge rate in the pumping well is increased from an initially low ...
The mutiple-step drawdown test outlined in this paper permits the de- termination of the well loss and of the "effective radius" of the well. The trend of drawdown is observed in the pumped well and in one or more near-by observation wells as the discharge is increased in stepwise ...
2) fall-off test 压降试井 例句>> 3) constant pressure drop 定压降; 恒压降4) constant pressure drop 定压降,恒压降,恒压差5) two-rate falloff test 两级流量压降试井6) pressure-support well 压力保持井补充资料:试井 试井well testing 油田开发过程中的一种作业用专门的仪表定时测量部分生产...
However, only one side slope and part of the canal bottom were reproduced in the test box. The test section of the canal was placed crosswise in a test box 24 feet long, 3 feet wide, and 6 ft deep, equipped with a suitable water supply and drain system for the drawdown tests and a...
From a drawdown test conducted at either constant or smoothly changing rate, calculate ( ) and skin factor from information in the transient region.A.permeabilityB.saturationC.pressureD.porosity的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)
In a step-drawdown test, the abstraction rate from the well is increased in a number of steps (minimum of three) and covers a wide range of flows up to a rate equal to or greater than the required design flow. The process consists of pumping the well at step-wise increasing discharge ...
Step-drawdown test has been generally conducted to evaluate productivity or efficiency of both aquifer and well. In general step-drawdown test, pumping with a low constant discharge rate is conducted in the first stage until the drawdown within the well stabilizes. And then the groundwater is pum...
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From introduction: A test of the reservoir drawdown concept was completed in March, 1992, using Lower Granite and Little Goose Neck Dams (also known as "projects") on the lower Snake River. The test was designed to gather information regarding the effects of lowering existing reservoirs ...