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The economic effect of
using a blast hole with a
non-circular cross-section
«Drilling tool Bogomolov»
According to the project research
the usage of wells with non-circular
cross-section allows you to:
 To increase the size of the well grid by 10%.
 To reduce the consumption of explosives in
blasting operations at 10%.
 To reduce the amount of drilling by 10%.
The grid size for drilling and blasting
operations
Name Units
Blast hole circular
cross-section
Blast hole square cross-
section
Length m 5 5,5
Width m 5 5
Depth m 9 9
The consumption rate of the
explosives in the borehole
Name Units
Blast hole circular
cross-section
Blast hole square cross-
section
Column length m 5,85 5,85
The consumption
rate for the
length of the
column
m/t 32,12 32,12
Specific
consumption of
explosives in the
borehole
t 0,18 0,18
The production rates of the drilling
rig per month
Name Units
Blast holes of
circular cross-
section
Blast hole of square
cross-section
The volume of
blasted rock
mass
cubic meter Equal volume
The number of
drilled wells
pieces 3000 2727
Drilling tool resource
Name Units
Blast hole of
circular cross-
section
Blast hole of square
cross-section
Resource
linear
meters
10000 5000
The number of
tool
replacements per
month
pieces 2,70 4,91
Expenses per one unit of resources
Name Units
Blast hole of
circular cross-
section
Blast hole of square
cross-section
Explosive
substance
$/t 371,75 371,75
Drilling tools $/pieces 594,80 1189,59
The other items remain unchanged.
Total monthly expenses for carrying
out drilling and blasting operations
Name Units
Blast hole of
circular cross-
section
Blast hole of
square cross-
section
Economic effect
Explosive
substance
$ 203118,42 184653,11 18465,31
Drilling tools $ 1605,95 5839,81 -4233,86
Total $ 204724,37 190492,92 14231,45
The other items remain unchanged.
The use of wells with non-circular
cross-section allows
 Reduce monthly expenses explosive by
approximately 9%.
 Reduce the cost of drilling and blasting
operations by 7%.
 The annual economic effect from one
machine under equal conditions of
development of the volume of blasted
rock is $170777,37.
Archive of presentations
 The efficiency of the blast hole with a
square cross-section
Publications archive
 Effective appliance of drilled wells with
noncircular cross-sectional area during mine
stripping at the open cast
 Preconditions for creating and using a tool for
blastholes forming at the open cast mining
 Drilling tool for stress-raiser well drilling
 Appliance and development of drilling tools
with noncircular cross-section
 Resource-saving drilling tools appliance for
noncircular cross-section wells forming
 Investment proposal «Drilling tool Bogomolov»
Thank you for your
cooperation and
understanding
Igor Golovin
Phone: +7-921-435-13-44
E-mail: golovin-2017@yandex.ru
http://golovin2017.com

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Presentation #2.2 – «Drilling tool Bogomolov»

  • 1. The economic effect of using a blast hole with a non-circular cross-section «Drilling tool Bogomolov»
  • 2. According to the project research the usage of wells with non-circular cross-section allows you to:  To increase the size of the well grid by 10%.  To reduce the consumption of explosives in blasting operations at 10%.  To reduce the amount of drilling by 10%.
  • 3. The grid size for drilling and blasting operations Name Units Blast hole circular cross-section Blast hole square cross- section Length m 5 5,5 Width m 5 5 Depth m 9 9
  • 4. The consumption rate of the explosives in the borehole Name Units Blast hole circular cross-section Blast hole square cross- section Column length m 5,85 5,85 The consumption rate for the length of the column m/t 32,12 32,12 Specific consumption of explosives in the borehole t 0,18 0,18
  • 5. The production rates of the drilling rig per month Name Units Blast holes of circular cross- section Blast hole of square cross-section The volume of blasted rock mass cubic meter Equal volume The number of drilled wells pieces 3000 2727
  • 6. Drilling tool resource Name Units Blast hole of circular cross- section Blast hole of square cross-section Resource linear meters 10000 5000 The number of tool replacements per month pieces 2,70 4,91
  • 7. Expenses per one unit of resources Name Units Blast hole of circular cross- section Blast hole of square cross-section Explosive substance $/t 371,75 371,75 Drilling tools $/pieces 594,80 1189,59 The other items remain unchanged.
  • 8. Total monthly expenses for carrying out drilling and blasting operations Name Units Blast hole of circular cross- section Blast hole of square cross- section Economic effect Explosive substance $ 203118,42 184653,11 18465,31 Drilling tools $ 1605,95 5839,81 -4233,86 Total $ 204724,37 190492,92 14231,45 The other items remain unchanged.
  • 9. The use of wells with non-circular cross-section allows  Reduce monthly expenses explosive by approximately 9%.  Reduce the cost of drilling and blasting operations by 7%.  The annual economic effect from one machine under equal conditions of development of the volume of blasted rock is $170777,37.
  • 10. Archive of presentations  The efficiency of the blast hole with a square cross-section
  • 11. Publications archive  Effective appliance of drilled wells with noncircular cross-sectional area during mine stripping at the open cast  Preconditions for creating and using a tool for blastholes forming at the open cast mining  Drilling tool for stress-raiser well drilling  Appliance and development of drilling tools with noncircular cross-section  Resource-saving drilling tools appliance for noncircular cross-section wells forming  Investment proposal «Drilling tool Bogomolov»
  • 12. Thank you for your cooperation and understanding Igor Golovin Phone: +7-921-435-13-44 E-mail: golovin-2017@yandex.ru http://golovin2017.com