Drilling PDF Print E-mail

Drilling branch conducts the drilling operation (especially diamond core drilling) for different purposes, like mineral exploration and investigation, seismic, geotechnical site investigation, geothermal, carryout site investigation to allow the design of foundations and to ensure stability of civil structures, access to ground water, helping to locate areas of subsurface contamination and assists in the remediation process.

 Responsibilities

 

·          Drilling for Mineral Exploration & Development.

·          Drilling for Geo-Scientific Research.

·          Drilling for Helping to Locate Ground Water.  

·          Specialized Support Services.

 

Activities

 

·          Carryout Drilling Operation and Provide Logistic Supports.

     Drilling Equipment Operation, Maintenance & Servicing Works.

     Specialized Support Services to other Public Organization on Demand. 

·          Helping to Access Ground Water and to Locate Areas of Subsurface Contamination and Assists in the Remediation Process.

·          Carryout Drilling for Site Investigation to Allow the Design of Foundations and to Ensure Stability of Civil Structures.

Total Exploratory Drilling Depth Coverage or Footage

 

 

Sl. No

Duration

Total No. of Well

Total Drilling Depth in feet

 

Remarks

1

1960 - 1964

70

63106.6

 

2

1965 - 1969

30

20931.1

 

3

1970 - 1974

11

5472.1

 

4

1975 - 1979

31

13490.9

 

5

1980 - 1984

12

7688.6

 

6

1985 - 1989

12

18173.0

 

7

1990 - 1994

10

4686.4

 

8

1995 - 1999

11

17463.0

 

9

2000 - 2004

7

11427.0

 

10

2005 - 2009

3

4342.0

 

Total

197

1,64,600

 

 

NB: Excluding above exploratory drill holes, 2787 seismological holes of total depth coverage 112,000 feet were drilled from 1960 to 2009.   

 

Major Achievements

 

 

Economic Minerals

Basin/Location

No. of  Drill Holes

Success Ratio

Year of Discovery

Remarks

 

 

 

Coal

Jamalgonj, Jaipurhat

9

100%

1963

 

Barapukuria, Dinajpur

07

100%

1985

 

Khalashpir, Rangpur

04

75%

1989

 

Dighipara, Dinajpur

05

100%

1996

 

 

 

 

Limestone

Takerghat, Sunamgonj

64

86.67%

1960

 

Lalghat, Sunamgonj

05

100%

1962

 

Khonjonpur, Joypurhat

04

100%

1962

 

Baglibazar, Sunamgonj

18

100%

1964

 

Hard Rock

Madhyapara, Dinajpur

06

100%

1983