Acker Drill Company Soil Sampling

Acker Denison - Undisturbed

Special Undisturbed Soil Sampling
U.S. Patent No. 2403002

The Acker Denison Soil Sampling Barrel is designed for taking undisturbed samples of cohesive soils, rate earths, kaolin, and similar soft and easily eroded materials.

The soil core is retained by wall friction or by a basket type retainer. Three lengths of sawtooth borium faced cutter shoes are provided with each barrel to facilitate sampling in soft, medium or hard materials.

When extremely hard and compacted formations are encountered, the Denison Core Barrel can be fitted with a bit assembly consisting of an inner tube extension and special split ring core lifter. A diamond or carbide insert type bit is recommended depending on the hardness encountered.

The Acker Denison Core Barrel is manufactured in five standard sizes: 2-15/16" O.D., 3-1/2" O.D., 4-1/2" O.D., 5-1/2" O.D., and 7-3/4" O.D. Each size recovers a relatively large sample in the inner non-rotating tube of the barrel. This inner tube is lined with thin brass liners, so that the sample can be recovered, capped, and preserved in the same manner as when using the thin wall tube samplers or stationary piston samplers. Standard length barrels recover either two or five foot samples. The shorter barrels are recommended for sampling softer materials. The Denison Core Barrel can be operated by any standard drill rig capable of using N rods or larger. The sampler is designed for use with either clear water, drilling mud, or air.

Denison Undisturbed Soil Sampling Core Barrel Nominal Dimensions
Sampler O.D.	Hole Diameter	Core Diameter	Rod Connection ( Box )
2-15/16" (74.6 mm.)	3-1/16" (77.8 mm.)	1-7/8" (47.6 mm.)	NW
3-1/2" (88.9 mm.)	3-5/8" (92.0 mm.)	2-3/8" (59.9 mm.)	NW
4" (101.6 mm.)	4-1/8" (104.8 mm.)	2-13/16" (71.4 mm.)	2-7/8" API Reg.
5-1/2" (139.7 mm.)	5-5/8" (142.9 mm.)	4-3/32" (104.0 mm.)	2-7/8" API Reg.
7-3/4" (196.9 mm.)	7-7/8" (200.0 mm.)	6-5/16" (160.3 mm.)	3-1/2" API Reg.

Denison Undisturbed Soil Sampling Core Barrel
Description (Complete Assembly)	2-15/16" O.D.			3-1/2" O.D.			4" O.D.
	Part Number	Weight		Part Number	Weight		Par Number	Weight
	Part Number	lbs.	kg.	Part Number	lbs.	kg	Par Number	lbs.	kg.
2 Ft. (0.61 m.) Core Capacity	22143-2	63.0	28.6	22098-1	65.0	29.4	22099-1	75.0	33.9
5 Ft. (1.5 m.) Core Capacity	22143-1	95.0	43.1	22098-2	100.0	45.3	22099-2	140.0	63.4

Denison Undisturbed Soil Sampling Core Barrel
Description (Complete Assembly)	5-1/2" O.D.			7-3/4" O.D.
	Part Number	Weight		Part Number	Weight
		lbs.	kg.		lbs.	kg
2 Ft. (0.61 m.) Core Capacity	22050-1	200.0	90.6	22100-1	320.0	145.0
5 Ft. (1.5 m.) Core Capacity	22050-2	250.0	113.2	22100-2	355.0	160.8

Acker Denison - Undisturbed