DBC Makina Sanayi ve Ticaret A.Ş.

1) The preferred drilling method?

Synchonized or conventional method

Wireline method

DTH method, RC reverse circulation

Auger

Rotary drilling with tricone or drag bits

Other

2) Additional equipment to be delivered with the drill rig?

WL hoist

Digital drilling package

Hydraulic operated mud pump

Mud mixer

Crawler carrier

Other

3) Type of the prime mover?

Petrol engine

Diesel engine

Electric motor

Other

4) The coring operation will be made at the entire borehole or only in some sections?

5) Spare part proposal for the rig, pumps and drilling accessories to be prepared for how many years?

6) Are there any tests to be made in the borehole?

7) Is it possible to find drilling water nearby the drilling location?

8) Is there night drilling?

9) Is the drilling will be performed from the surface or underground?

10) Do you want us to organize a three days free of charge course for your drillers in your job site ?

11) How many shifts per day?

12) Maximum hole depth?

13) Maximum and minimum core sizes?

14) The depth and angle of the inclined boreholes?

15) Minimum core recovery requested?

16) Type of the drilling (mining exploration, site investigation, grouting boreholes, blasting boreholes, etc)

17) Type and depth of the overburden?

18) Maximum and minimum hole sizes?

19) The gallery dimension in case of underground drilling?

20) Is pressurized air available and capacity ?

21) Max elevation of the drilling location?

22) How is the access road?

23) The months of drilling of operation?

24) The temperature difference between day and night?

25) The maximum hole depth to be considered for the drilling equipment offer?

26) The total amount of drilling for the estimation of drilling consumables such as bits, reaming shells, ec?

27) The yearly experiance of your drillers?

28) When you need the proforma invoice prepared?

29) If known; a.type of formation (limestone- granite-basalt,etc) , b.Hardness (medium hard- hard- very hard, c. Abrasivity (medium - high, d. Grain(big, medium, fine, etc), e. Structure (competent- boken, etc)

30) Is electric power available in drilling location? Power? Voltage and frequency?

Your company name, address, phone and fax numbers, e-mail^*

Other suggestions or requests^*

QUESTIONNAIRE FOR THE DRILL RIG REQUEST