Coring tools |
 |
Single
tube core barrel |
|
SINGLE
TUBE CORE BARREL |
HOLE Ø mm. |
36 |
46 |
56 |
66 |
76 |
86 |
101 |
116 |
131 |
146 |
CORE Ø mm. |
22 |
32 |
42 |
52 |
62 |
72 |
83 |
96 |
109 |
120 |
ROD CONNECTION |
34 |
44 |
50 |
50 |
50 |
50
2 
API Reg.
|
 |
with sediment tube
standard length1500 cm - 3000 cm |
Top 
Double
tube "T2" core barrell |
|
DOUBLE
TUBE "T2" CORE BARREL |
HOLE Ø mm. |
36 |
46 |
56 |
66 |
76 |
86 |
101 |
CORE Ø mm. |
22 |
32 |
42 |
52 |
62 |
72 |
84 |
ROD CONNECTION |
33,5 |
42 |
50 |
50 |
50 |
50 |
NWY 2
API R. |
 |
standard length 1500 cm - 3000 cm |
Top
Double
tube "T6" core barrel |
|
DOUBLE
TUBE "T6" CORE BARREL |
HOLE Ø mm. |
101 |
116 |
131 |
146 |
CORE Ø mm. |
79 |
93 |
108 |
123 |
ROD CONNECTION |
NWY |
NWY |
NWY |
NWY |
 |
standard length 1500 cm - 3000 cm |
Top
Double
tube "T6-S" core barrel |
|
DOUBLE
TUBE "T6-S" CORE BARREL |
HOLE Ø mm. |
101 |
116 |
131 |
146 |
CORE Ø mm. |
72 |
86 |
101 |
116 |
ROD CONNECTION |
NWY |
NWY |
NWY |
NWY |
 |
Split inner tube
standard length 1500 cm |
Top
Double
tube "DENISON" core barrel |
|
DOUBLE
TUBE "DENISON" CORE BARREL |
HOLE Ø mm. |
101 |
116 |
131 |
146 |
CORE Ø mm. |
72 |
86 |
101 |
116 |
ROD CONNECTION |
NWY |
NWY |
NWY |
NWY |
 |
standard length 1500 cm - 3000 cm |
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Thin
wall "SHELBY" type sampler |
|
THIN
WALL "SHELBY" TYPE SAMPLER |
OUTER Ø mm. |
101,6 |
100 |
88,9 |
83 |
THICKNESS mm. |
2 |
1,5 |
2 |
1,5 |
ROD CONNECTION mm. |
50 |
50 |
50 |
50 |
TOTAL LENGTH mm. |
902 |
880 |
973 |
880 |
WEIGHT Kg. |
10,8 |
10,8 |
9,0 |
8,6 |
 |
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Standard
penetration test |
|
STANDARD
PENETRATION TEST |
ITEM |
PART NAME |
|
DROP HAMMER Kg. 118 |
1 |
HAMMER |
2 |
TOOTH |
3 |
ANVIL |
 |
Top
"SPT"
split sampler |
|
"SPT"
SPLIT SAMPLER |
ITEM |
PART NAME |
ROD CONN. |
WGT Kg. |
1 |
SHOE |
— |
0,4 |
2 |
POINT |
— |
0,8 |
3 |
HEAD |
50 |
0,9 |
4 |
SPLIT TUBE |
— |
5,0 |
 |
Top
Tungsten
carbide bits |
|
SINGLE
TUBE CORE BARREL |
HOLE mm. |
46 |
56 |
66 |
76 |
86 |
101 |
116 |
131 |
146 |
 |
CORE mm. |
32 |
42 |
52 |
62 |
72 |
83 |
96 |
109 |
120 |
DOUBLE
TUBE CORE BARREL T2 |
HOLE mm. |
46 |
56 |
66 |
76 |
86 |
101 |
 |
CORE mm. |
32 |
42 |
52 |
62 |
72 |
84 |
DOUBLE
TUBE CORE BARREL T6 |
HOLE mm. |
76 |
86 |
101 |
116 |
131 |
146 |
 |
CORE mm. |
57 |
67 |
89 |
93 |
108 |
123 |
DOUBLE
TUBE CORE BARREL T6-S |
HOLE mm. |
76 |
86 |
101 |
116 |
131 |
146 |
 |
CORE mm. |
48 |
58 |
72 |
86 |
101 |
116 |
DOUBLE
TUBE CORE BARREL DENISON "L" |
HOLE mm. |
86 |
101 |
116 |
 |
CORE mm. |
60 |
71 |
78 |
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Diamond
core bits |
|
DIAMOND IMPREGNATED CORE BITS
Impregnated bits present a metallic layer, impregnated of diamonds
on its cutting face. Fine diamonds are mixed with a metallic powder,
called matrix, which is then subject to thermal treatment assuring
the metallurgic bond of the matrix on the metal part of the bit.
P
Flat profile |
A
Rounded profile |
W
W Profile |
C
Tapered profile |
 |
 |
 |
 |
Standard profile for thin wall bits (B/D/T2 Series). For
very hard and fractured formation. High RPM is required. |
Suitable profile for very hard and fractured formation.
The rounded profile has reinforced cutting edges. High RPM
is required. |
Standard profile bits with thicker walls (T6/K/DCDMA/BS/Wire-Line).
Very good rate of penetration in very hard and compact formations. |
Recommended profile for non-homogeneus formation, such
as conglomerates, gravels, chalk or phosphate with cherts. |
DIAMOND SURFACE SET CORE BITS
Although not as versatile as impregnated bits, the surface set
bit has specific applications in soft to medium hard formation.
The surface set bit, as its name implies, is manufactured with diamonds
individually set on the matrix. The mold is then subject to a thermal
treatment assuring the metallurgic bond of the matrix on the metal
part of the bit.
A
Rounded profile |
G
Stepped profile |
P
Parabolic profile |
 |
 |
 |
This profile is the most frequently used. The radius is
slightly bigger than the half wall thickness of the bit. |
This profile gives good rates of penetration, but is not
appropriate in fractured formations. It is normally used with
a wire-line core barrel. |
This profile is a good alternative to the rounded profile,
because it gives excellent penetration rates. Furthermore,
it is more resistant than the stepped profile in fractured
formations. |
Also available:
- diamond reaming shells;
- diamond casing shoes;
- diamond drilling bits.
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