Technical Information


independent-studies
well-template
 

 

The chart below is to help you select the best HydraSleeve size and configuration for your particular sampling requirements.

No-purge sampling is limited to collecting the water from inside the well screen under ambient conditions. Water from the well casing is not formation (sample) quality. Before ordering you need to determine the following:

1. Required Sample Volume - Remember, most laboratories ask for more than they need.

2. Well Inside Diameter - The larger the internal diameter of the screen the greater the available sample volume.

3. The Length of the Water Column in the Well Screen - a 40-foot deep well with a 10-foot well screen and a 20-foot column of water in the well means the 10-foot screen defines the amount of water available for sample collection. If the same well has 5 feet of water in the screen, this means there is only 5 feet of available fluid for no-purge sampling.

For additional selection help you can fill out and submit a well template form by clicking here. Someone from GeoInsight will contact you as soon as possible.

For a metric conversion, please click here.

 

HydraSleeve Selection Guide

Description

Minimum Well Diameter

Max. Sample Volume

Sleeve Length

Minimum Bottom Weight

Minimum Top Weight with 5 oz bottom weight

Pull to Fill Distance*

Compressed by Top Weight**

Standard HydraSleeve (with reinforcement strip at top)

     
2" HydraSleeves              
HS-2 HydraSleeve (600 mls) 1.5" Sch. 40 ~600 mls 30" 5 oz 16 oz 3 ft. ~10"
HS-2-1L HydraSleeve (1000 mls) 2" Sch. 80 ~1300 mls 38" 8 oz n/a 4 ft. n/a

SpeedBag(500 mls)   >no equilibration time

2" Sch. 80 ~500 mls 30" 4 oz n/a 3 ft. n/a

SpeedBag(900 mls) >no equilibration time

2" Sch. 40 ~900 mls 37" 7 oz n/a 3 ft n/a
4" HydraSleeve
             
HS-4-2L HydraSleeve (3000 mls) 4" Sch 40 ~3100 mls 37" 11 oz 24 oz 3 ft. ~24"
         

Heavy Duty, Universal Super/SkinnySleeve 2" Schedule 40 (with reuseable threaded top piece) The hardware determines the outside diameter

   

HDSS-1L (1000 mls)

2" Sch. 40 ~1000 mls 38" 8 oz. 24 oz. 3 ft. ~12"

HDSS-1.5L (1500 mls)

2" Sch. 40 ~1500 mls 52" 8 oz. 24 oz. 5 ft. ~16"

HDSS-2L (2000 mls)

2" Sch. 40 ~2000 mls 66" 8 oz. 24 oz. 5 ft. ~24"

HSSS-4L+ (4000 mls)

2" Sch. 40 ~4400 mls 96" 8 oz. 64 oz. 7 ft. ~34"

 Heavy Dury, Universal Super/SkinnySleeve 2" Schedule 80 (with reusable threaded top piece) The hardware determins the outside diameter

   
HDSS-1.0L(1000 mls)

2" Sch. 80

~1000 mls 38" 8 oz 35 oz 3 ft. ~12"
HDSS-1.5 (1500 mls) 2" Sch. 80 ~1500 mls 52" 8 oz 35 oz 5 ft. ~18"
HDSS-2.0 (2000 mls) 2" Sch. 80 ~2000 mls 66" 8 oz 35 oz 7 ft. ~24"
               
SkinnySleeve 1-inch HydraSleeve (with reuseable threaded top piece)    
HS-1-SKY (300 mls) 1" Sch. 40 ~300 mls 48" 8 oz. 12 oz. 4 ft. ~24"

 

 

*Distance the sampler needs to move upward to fill completely.  The top of the sampler marks the beginning of the sample interval.

**Average distance from the top of sampler to the bottom of the well when cmpressed by the top weight. Sleeve is lowered into the well fully extended below the weight, not rolled and inserted inside the top weight.