Geoprobe Systems® 6x8 sonic sampling provides the operator a larger area to work with than the traditional 4x6 method. The operator can obtain a larger diameter sample if desired, but this casing combination is typically used to provide a larger hole, such as to set a monitoring well. When telescoping one casing over another it is important to consider your main objective to determine sampling size.
Conventional Sonic Sampling
Geoprobe Systems® conventional sonic sampling systems provide a wide range of casing sizes and bit configurations. Conventional sonic sampling consists of driving your lead core barrel (sample collection) first and then overcasing it with a larger size casing. Once the larger casing has reached the same depth of the core barrel, the core barrel is removed, sample extruded, core barrel sent back down the middle of the larger casing and advanced out the end collecting another sample. Again, the larger casing is advanced to the same depth as the core barrel. This process is repeated to the depth desired. A long established casing configuration for this is using a 4 in. core barrel overcased with a 6 in. casing (4 x 6 Sonic Sampling). Other sonic configurations follow in this manner with larger inner and outer casing sizes.
Geoprobe® sonic casings have been uniquely designed with conventional sonic sampling in mind. When telescoping one casing over another, (such as 4x6) it is important to consider the spacing (annulus) between the telescoping casings. Geoprobe® sonic casing is designed so that each incremental casing is sized with bit clearances, and annular space in mind. If there is too little annulus between casings, certain soils can cause them to lock up and become stuck together. If there is too much annular space between casings, then excessive water is needed to flush the soil between the casings. The Geoprobe® sonic casing family has been uniquely designed so that each incremental casing size works efficiently with the next. Notice the similarities in the annular space between the casing sizes in the diagram. This results in a very efficient combination of casings for use in conventional sonic sampling applications such as 4x6, 6x8, or 8x10.
ID: 1910
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GV5 SPINDLE ADPT 7.625 RHSL BOLT ON
MN: 229302
7.625 SONIC CASING 120 in. RHSL
MN: 211216
7.625 SONIC CASING 60 in. RHSL
MN: 211055
7.625 SONIC CASING 24 in. RHSL
MN: 211380
MN: 210979
MN: 210648
MN: 211174
MN: 211277
MN: 212350
MN: 212351
6.0 SONIC SAMPLER BARREL 60 in. LHSL
MN: 211383
6.0 SONIC SAMPLER BARREL 12 in. LHSL
MN: 222663
4.5 HD SONIC ROD RHSL MIDBODY 10 FT
MN: 226643
4.5 HD SONIC ROD RHSL MIDBODY 5 FT
MN: 226634
4.5 HD SONIC ROD RHSL MIDBODY 2 FT
MN: 226641
MN: 226658
MN: 210172
MN: 210495
MN: 210563
MN: 210602
MN: 211056
7.625 SONIC BIT RHSL CC 7.625 OD 6.88 ID
MN: 226012
MN: 210749
MN: 213325
MN: 211107
6.0 SONIC CORE CATCHER RH SHORT
MN: 231193
MN: 211409
MN: 216273
MN: 211746
6.0 SONIC CORE CATCHER LH SHORT
MN: 231202
6.0 SONIC BIT RHSL CC 6.0 OD 5.25 ID
MN: 226017
MN: 226396
MN: 215162
6.0 SONIC BIT RHSL FULL FACE 6.35 OD
MN: 222884
ADPT 6.0 RHSL BOX - 7.625 RHSL PIN
MN: 212218
ADPT 4.5 HD BOX – 6.0 RHSL PIN
MN: 226740
ADPT 4.5 HD PIN – 6.0 RHSL BOX
MN: 226741
ADPT 4.5 LHSL BOX - 6.0 LHSL PIN
MN: 211647
MN: 229271
MN: 212679
MN: 211301
MN: 210649
4.5 HD RHSL SWIVEL LIFT CAP, PIN
MN: 228940
MN: 210606
MN: 106478
MN: 600624
MN: 600448
CORE BAGS, 10 in. FLAT x 725 ft. – 6X8
MN: 114850
MN: 600729
GV5 SPINDLE ADPT 7.625 RHSL BOLT ON
MN: 229302
7.625 SONIC CASING 120 in. RHSL
MN: 211216
7.625 SONIC CASING 60 in. RHSL
MN: 211055
7.625 SONIC CASING 24 in. RHSL
MN: 211380
MN: 210979
MN: 210648
MN: 211174
MN: 211277
MN: 212350
MN: 212351
6.0 SONIC SAMPLER BARREL 60 in. LHSL
MN: 211383
6.0 SONIC SAMPLER BARREL 12 in. LHSL
MN: 222663
4.5 HD SONIC ROD RHSL MIDBODY 10 FT
MN: 226643
4.5 HD SONIC ROD RHSL MIDBODY 5 FT
MN: 226634
4.5 HD SONIC ROD RHSL MIDBODY 2 FT
MN: 226641
MN: 226658
MN: 210172
MN: 210495
MN: 210563
MN: 210602
MN: 211056
7.625 SONIC BIT RHSL CC 7.625 OD 6.88 ID
MN: 226012
MN: 210749
MN: 213325
MN: 211107
6.0 SONIC CORE CATCHER RH SHORT
MN: 231193
MN: 211409
MN: 216273
MN: 211746
6.0 SONIC CORE CATCHER LH SHORT
MN: 231202
6.0 SONIC BIT RHSL CC 6.0 OD 5.25 ID
MN: 226017
MN: 226396
MN: 215162
6.0 SONIC BIT RHSL FULL FACE 6.35 OD
MN: 222884
ADPT 6.0 RHSL BOX - 7.625 RHSL PIN
MN: 212218
ADPT 4.5 HD BOX – 6.0 RHSL PIN
MN: 226740
ADPT 4.5 HD PIN – 6.0 RHSL BOX
MN: 226741
ADPT 4.5 LHSL BOX - 6.0 LHSL PIN
MN: 211647
MN: 229271
MN: 212679
MN: 211301
MN: 210649
4.5 HD RHSL SWIVEL LIFT CAP, PIN
MN: 228940
MN: 210606
MN: 106478
MN: 600624
MN: 600448
CORE BAGS, 10 in. FLAT x 725 ft. – 6X8
MN: 114850
MN: 600729