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RT TW9

This document summarizes the results of a recovery test conducted on a tube well for Wilmar Palm Products Sdn Bhd. The test was conducted on May 15, 2023, pumping water from the well at a rate of 22.6 cubic meters per hour. Water levels were measured at regular intervals after pumping ended, showing that the residual water level stabilized at around 6.6 meters below the collar height after 10 minutes and remained around that level for the duration of the 1-hour test.

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Tera Water Technology
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65 views1 page

RT TW9

This document summarizes the results of a recovery test conducted on a tube well for Wilmar Palm Products Sdn Bhd. The test was conducted on May 15, 2023, pumping water from the well at a rate of 22.6 cubic meters per hour. Water levels were measured at regular intervals after pumping ended, showing that the residual water level stabilized at around 6.6 meters below the collar height after 10 minutes and remained around that level for the duration of the 1-hour test.

Uploaded by

Tera Water Technology
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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GWS DRILLING ENGINEERING SDN. BHD.

RECOVERY TEST

CLIENT Wilmar Palm Products Sdn Bhd DATE / DAY (START) 15/5/2023
REFERENCE WELL NO TW-09 TIME 4.15 pm
DATE / DAY (FINISH) 15/5/2023
TIME 5.15 pm
LOCATION Banting
STATIC
5.50 m
WATER LEVEL
TYPE OF WELL Vertical Tube Well COLLAR HEIGHT 0.00
DEPTH OF WELL 106.0 m PUMP POSITION 53.0 m
RATE OF PUMPING, Q22.6 m3/hr

Time after Residual Water


Time after Residual
End of Pumping, t/t' Level Remarks
Start of Pumping, t (min) Drawdown (m)
t'(min) (m)
1440.00 0.00 ∞ 9.85 4.35
1440.30 0.30 4801.00 7.96 2.46
1441.00 1.00 1441.00 7.80 2.30
1441.30 1.30 1108.69 7.78 2.28
1442.00 2.00 721.00 7.71 2.21
1442.30 2.30 627.09 7.60 2.10
1443.00 3.00 481.00 7.40 1.90
1443.30 3.30 437.36 7.23 1.73
1444.00 4.00 361.00 7.00 1.50
1444.30 4.30 335.88 6.90 1.40
1445.00 5.00 289.00 6.76 1.26
1446.00 6.00 241.00 6.60 1.10
1447.00 7.00 206.71 6.60 1.10
1448.00 8.00 181.00 6.60 1.10
1449.00 9.00 161.00 6.60 1.10
1450.00 10.00 145.00 6.60 1.10
1455.00 15.00 97.00 6.60 1.10
1460.00 20.00 73.00 6.60 1.10
1465.00 25.00 58.60 6.50 1.00
1470.00 30.00 49.00 6.46 0.96
1475.00 35.00 42.14 6.40 0.90
1480.00 40.00 37.00 6.38 0.88
1485.00 45.00 33.00 6.33 0.83
1490.00 50.00 29.80 6.27 0.77
1495.00 55.00 27.18 6.19 0.69
1500.00 60.00 25.00 6.11 0.61

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