This document describes the ZDY12000LD directional drill rig. It consists of two parts, a drill crawler and pump crawler, each capable of operating independently. The drill crawler can drill boreholes in excess of 1500 meters and features a rotary unit, control panel, and frameproof laptop. The pump crawler supplies hydraulic fluid power at a flow rate of 390 liters per minute and pressure of 12 MPa. The document provides technical specifications and details applications where the drill rig has been used to drill long underground boreholes for purposes such as gas drainage and geological structure detection.

1. CCTEG
CCTEG-Xian Technology Communication
ZDY12000LD Directional
Drill Rig
Xian Research Institute of China Coal
Technology & Engineering Group
Owen Ji

2. CCTEG
1. Introduction
2. Technical Features
4. Applications
ZDY12000LD Directional Drill Rig
ZDY12000LD Directional Drill Rig
3. Specification

3. CCTEG
1. Introduction
Specifically designed to drill especially long
directional drilling boreholes in explosive
underground environments
The rig has a compact footprint
mounted on tracks, and is integrated
with certified flameproof electrics
and flameproof laptop
The rigs is designed to drill in-seam in
excess of 1500m with downhole motor,
directional drilling management system,
CHD drill rods and PDC drill bits
ZDY12000LD(A)
Directional Drill Rig

4. CCTEG
1. Introduction
Consist of two parts, drill crawler and pump crawler. Each part can “walk”
independently
 Capable to drill in-seam borehole in excess of 1500m.and is suitable to downhole
motor directional drilling, rotary drilling and combined directional drilling technique
 Widely used in borehole drilling for degasification, underground water detect &
discharge, geological structure and coal seam thickness detect, coal seam water
injection , grouting and other boreholes where high drilling accuracy is required
ZDY12000LD directional drilling rig
Drill crawler Pump crawler

5. CCTEG
2. Technical Features
Drill Crawler
Technical specification
Drill depth 1500m
Rated torque 12000/3500 N.m
Rated speed 50/170 r/min
Maximum
feed/pull force
250 kN
Rated power 132 kW
Feed-frame
tilt angle
-10°～20°
Dimensions
（L×W×H）
4.2m×1.6m×1.9m
cis composed by control panel, drill unit, power pack, frameproof laptop, drill mud
flowmeter, stingers, tracked tram and so on. Each part is stably connected by bolts
and hydraulic hoses.
Tracked tram has features of high crawler capacity, flexible maneuverability and
excellent underground roadway/drill site applicability.

6. CCTEG
2. Technical Features
6
Control panel
Feed frame
Rotary unit
Chuck
Frameproof laptop & Directional
Drilling Management System(DDMS)
Power pack
Drill Crawler

7. CCTEG
2. Technical Features
7
Drill Crawler
Rotary unit
Technical features：
Hydraulic controlled double motor drive with pressure
cut-off function
Big gear ratio planetary wheel deceleration allows output
torque and rotational speed to be adjustable infinitely in a
wide range
With 135mm diameter central hole in main shaft, the drill
is adaptable to work with rod diameter up to 127mm
(common drill rods include φ73mm、φ89mm、φ102mm
and φ127mm)；
Braking torque reaches to 2000Nm.
Rotary unit

8. CCTEG
2. Technical Features
Pump Crawler
8
Rated flow 390 L/min
Flow pressure 12 MPa
Power 110 kW
Dimension m 3.25×1.3×1.76
Technical specification
BLY390/12 mud pump crawler is a hydraulic pump crawler with large flow rate (the max flow
rate is 390l/min) and high mud pressure (rated pressure is 12Mpa). The rig can maintain
enough flow rate under high pressure work situation. It can supply enough hydraulic fluid
power for downhole motor operation and drill cut remove to meet the requirement of long
depth directional borehole drilling.
Pump crawler can “walk” indecently, which can significantly reduce the auxiliary time and
have strong applicability.

9. CCTEG
2. Technical Features
Pump crawler
9
Control panel
FMC mud pump
Exploration proof
electromagnetic starter
Power pack
Exploration
proof light
Gas sensor

10. CCTEG
Drill rod transportation
Dimension（L×W×H）： 2.5m×1.3m×1.25m；
Maximum 88 drill rods(Φ89×1500 rods or Φ89×3000 ) can be contained.
2. Technical Features

11. CCTEG
3. Specification
Technical specification
Rotary Unit
Rated torque 12000～3000 Nm
Rated speed 50～150 r/min
Brake torque 2000 Nm
Central hole diameter of
main shaft
135 mm
Applicative drill rod
Φ73mm/Φ89mm/Φ102mm/Φ127
mm
Feed System
Feed-frame tilt angle -10°～20°
Max push/pull force 250 kN
Feed/pull stroke 1200 mm
Pump Crawler
Rated flow rate 390 L/Min
Rated flow pressure 12 MPa

12. CCTEG
3. Specification
Technical specification
Power
station
Drill
crawler
Rated power 132 kW
Oil tank volume 500 L
Rate pressure of pump Ⅰ 28 MPa
Rate pressure of pump Ⅱ 26 MPa
Rate pressure of pump Ⅲ 21 MPa
Pump
crawer
Rated power 110 kW
Oil tank volume 380 L
Rated hydraulic pressure 28 MPa
Dimension
Drill
crawler
Weight 9000 kg
Dimensions（L×W×H） 4.2m×1.6×1.9m
Pump
crawler
Weight 5500
Dimensions（L×W×H） 3.25m×1.3m×1.76m

13. CCTEG
Long distance borehole have been accomplished in Sihe coal mine (5301 working face).. It
has maximum depth of 1881m which we believe is the deepest coal mine underground
directional borehole. The hole has 11 sidetracks 7 of them are drilled to detected roof and the
rest are drilled to detected floor. Average daily drilling depth reached as high as 210m. 180m
average daily drilling depth was maintained even after the borehole depth exceed 1000m.
4. Application

14. CCTEG
Mud-pulse wireless directional borehole profile
 With mud-pulse wireless MWD system, the drill accomplished an
experiment borehole with max depth of 1566m and 19 sidetracks. Average
drill efficiency reached 130m
4. Application

15. CCTEG
 With geosteering MWD system, the drill accomplished an experiment
borehole with max depth of 1209m and 5 sidetracks. 。
4. Application
Geosteering directional borehole profile

16. CCTEG
17 directional boreholes in roof rocks were accomplished during
experiment process. Maximum borehole depth reached 1026m with
153mm diameter.
Adjacent gas drainage directional borehole
4. Application

17. CCTEG
Borehole trajectory (profile)Borehole trajectory (plan)
A single hole with 77 sidetracks was accomplished in coal seam.
Maximum of depth of the borehole is 834m. The average drill
efficiency reached 247 m/d. One single borehole can cover the whole
areas which reduced gas drainage cost significantly
4. Application

18. CCTEG Thanks for your time！
Have a good day！
Business representative：Owen Ji
Tel：+8629-81778305
Mobile：+8613319186255
Skype：maioutwo What’sApp： +8613319186255
Email：jiqianhui@cctegxian.com
maioutwo@gmail.com
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