Liaoning Dadonggou Gold Mine Drilling
Release time:
2024-08-26
| Geological Design |
The drilling depth is 700 m, the H-diameter final hole, and the vertex angle is 2/100 m. |
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| Overview of final hole |
The final hole depth is 710 m, the hole diameter is 96mm, the core diameter is 70.8mm, the vertex angle is 1.9 °/100 m, and the azimuth angle is 40 °. |
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| Main equipment |
YN-1500 full hydraulic drilling rig |
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| Formation information |
Stratum 0-10m belongs to backfill layer; 5-700m belongs to non-hard rock stratum, broken and lost. After the rock formation information enters the rock, the rock is brittle and belongs to phyllite stratum, which is easy to run; |
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| Drilling process scheme |
Drilling tool configuration |
Process technology point |
|
| open |
Opening: single pipe drilling 10m to bedrock |
SC drill pipe φ147 bit |
Ensure the drilling accuracy and guide the drilling tool at the next level. |
| Orifice pipe: depth 10m |
SC drill pipe as orifice pipe |
Ensure casing running accuracy |
|
| Second opening |
The rope is drilled to a hole depth of 230m. Casing: casing depth 230m |
PC drill pipe PC drill tool PC adaptive drill bit PC Drill Pipe PC Drill Pipe Boots |
Ensure casing running accuracy |
| Three open |
The rope is drilled to a final hole depth of about 700 meters. |
① HIWX drill pipe HC asymmetric drilling tool HC adaptive bit guided drilling |
① Shallow hole section to ensure drilling accuracy |
| ② HIWX drill pipe HIWX drill tool adaptive pilot bit fast drilling |
② Rapid drilling of deep hole section |
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| Drilling tool material details |
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| Serial Number |
Name |
Specifications and models |
Quantity |
Unit |
Remarks |
| 1 |
3 m rope drill pipe |
RC-SC-3000 |
5 |
Root |
|
| 2 |
3 m rope drill pipe |
RC-PC-3000 |
50 |
Root |
|
| 30 |
3 m rope drill pipe |
PC-IITWX-3000 |
240 |
Root |
|
| 4 |
wireline coring tool |
SZJ-PC-3000 |
1 |
Sleeve |
|
| 5 |
wireline coring tool |
SZJ-HIC-3000 |
2 |
Sleeve |
|
| 6 |
wireline coring tool |
SZJ-HITWX-3000 |
2 |
Sleeve |
|
| 7 |
Sliver |
DLQ-PC |
1 |
Sleeve |
|
| 8 |
Sliver |
DILQ-HIC |
1 |
Sleeve |
|
| 9 |
diamond drill bit |
BIT-PC |
3 |
One |
|
| 10 |
Reamer |
SHELL-PC |
3 |
One |
|
| 11 |
diamond drill rod boots |
PC |
1 |
One |
|
| 12 |
diamond drill bit |
BIT-HC |
4 |
One |
|
| 13 |
Reamer |
SHELL-HIC |
4 |
One |
|
| 14 |
diamond drill bit |
BIT-HITWX |
4 |
One |
|
| 15 |
Reamer |
SHELL-HITWX |
4 |
One |
|
| Accessory Tool Details |
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| Serial Number |
Name |
Specifications and models |
Quantity |
Unit |
Remarks |
| 1 |
Faucet |
JS25K |
1 |
Sleeve |
|
| 2 |
lifter |
TYHC |
1 |
Sleeve |
|
| 30 |
drill pipe free tong |
140 |
2 |
Put |
|
| 4 |
drill pipe free tong |
114 |
2 |
Put |
|
| 5 |
drill pipe free tong |
89 |
2 |
Put |
|
| 6 |
inner tube free clamp |
95 |
2 |
Put |
|
| 7 |
inner tube free clamp |
73 |
2 |
Put |
|
| 8 |
Tap |
H |
2 |
One |
|
| 9 |
Tap |
p |
2 |
One |
|
| 10 |
Refundable salvage spear |
H |
1 |
Sleeve |
|
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