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Drilling rig

H35S.M DRILLING RIG

H35S.M drilling rig is made for vertical boreholes with the use of a quick-rotary wet drilling (right circulation) or core drilling. Also rotary dry drillings can be conducted with bucket auger or screw auger with the use of casing pipes as well as percussion drilling in which drilling material is removed by bailer mounted on drill string. Drilling rig is mounted on MAN TGS 26.320 chassis (Fig.1, 2) and powered by an independent combustion engine Mobil 5-W40 of 105 kW. Maximum range of core drilling Ø146 mm with the use of “throw into” method is 150 m and cased drilling with the use of percussion – rotary method of diameter Ø298  mm  – 50 m.

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Fig 1. H35S.M drilling rig in a service position

 

 

Technical specification is presented in table below

DRILLING RIG

drilling rig weight

9000 kg

length/width/height (in transport)

10050/2550/3900 mm

drilling rig height

9700 mm

Guaranteed level of sound power LWA

105 Db

ROTARY HEAD

Torque

60 – 600 daNm

Rotational speed

700 – 60 rot./min

Swimming spindle

45 mm

H30G-14.00 casinghead

diameter DN45

drilling jump

5400 mm

pressure force

50 kN

pull out force

80 kN

SLIDEWAY SHIFT

jump

1300 mm

pressure force

250 kN

pull out force

380 kN

rod diameters

45 – 195 mm

max diameter of casing pipes

298 mmm (11 ¾ “)

HYDRAULIC PUMPS

gear

I

II

III

IV

efficiency (l/min)

0 – 130

45

0 – 130

45

Max pressure (MPa)

21

25

22

25

WINCH

max force

44 kN

cable diameter/length

14mm/250m

HYDRAULIC OIL L-HV46

tank capacity

610 dm3

Nominal accuracy of filtration

10 m

Purity grade acc. ISO4406

22/17/14

Max temperature

65 C

max pressure

max efficiency

fluid

SHELL – SCREW PUMP

„BELLIN” NG 1200L2/PC5

2,4 MPa

500 dm3/min

water, polimeric drilling fluid, concrete and bentonite suspensions

SHELL – PISTON PUMP

TRIPLEX TRX200

4,5 MPa

200 dm3/min

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Fig 2. Technical drawing: H35S.M drilling rig in service position

 

 

Core drillings are carried out with „throw into” method GBS-146 or SK6L-146 in casing pipes of diameter 140 mm with the use of drill bit of inside diameter 146 mm
(Fig. 3). Drilling bit of inside diameter of  102 mm and length 1500 or 3000 mm is placed at bottom of the borehole, during drilling it is filled up with soil (core uptake). Filled up core barrel is pulled out with the use of winch and after placing sample (core) into a box is throw into a borehole again. The drilling is carried out with bentonite drilling mud (slurry), the parameters of which is adjusted for drilled soil. Drilling fluid is pumped into borehole constantly through entire volume of casing pipe, from where removes drilling material through space between pipes and borehole walls at the same time stabilizes wall of the borehole. At the surface drilling fluid is collected in sedimentation tank where drilling material is separated (through sedimentation) from drilling fluid which is used again in drilling.

Drilling rig can also be equipped with other systems of core drilling.

 

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Fig 3. Drilling bit scheme (drawing by GEOD)

 

 

 

H30S.M DRILLING RIG

H-30S drilling rig is designed for vertical drilling of maximum diameter  Ø  300 mm. Drilling can be carried out with the use of:

 

  • a slow-rotary method with the use of bucket auger mounted on rod and pulled out when it is filled with cuttings,
  • a cable tool drilling with the use of bailer lowered into the borehole on drill string,
  • a slow-rotary method with continuous flight (screw) auger.

Drilling with method a and b is carried out in casing pipes screwed with threads. Maximum range of drilling is 50 m.

Drilling rig is mounted on STAR 266 track (Fig.1, 2) and powered by an independent compression – ignition engine URSUS-PERKINS 3250A of 34 kW.

 

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Fig 1. The H30S drilling rig during cased drilling.

 

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Fig. 2. A technical drawing of H30S drilling rig

 

Technical specification is presented in table below

 

BASIC PARAMETERS

drilling rig weight

5150 kg

length/width/height (in transport)

8800/3800/3500 mm

drilling rig height

9000mm

HYDRAULIC DRILLING MACHINE

gear

I

II

torque (daNm)

500

250

rotational speed (rot/min)

n1 10

n2 35

n3 45

n4 20

n5 70

n6 90

HYDRAULIC WINCH 2,5 T

max force

25 kN

reel speed

0,8 m/s

JERK-LINE

eccentric

300/225

jump

850/510

percussion frequency

40 1/min

PRESSURE MECHANISM

max pressure force

22kN

max pull out force

45 kN

mechanism stroke

4400 mm

 

Type of drilling tools is adjusted to the drilled soil. Dry sands and cohesive soils are drilled out with the bucket auger and saturated non-cohesive soils with the bailer.
A continuous flight auger drilling is used in simple soil conditions, drilling for mineral resources (aggregates) as well as in the cases when (short) time and (low) price are decisive factors.

DRILLING RIG ŁBU

Drilling rig ŁBU is designed for vertical drilling of maximum diameter  200 mm. Drilling is carried out with continuous flight augers without casing. This machine is used in simple ground conditions, in mineral deposits prospecting and also in cases where decisive factors are (short) time and (low) drilling costs.
Drilling rig is mounted on ZIŁ truck (what allows to access also in rough conditions) and powered by a compression – ignition engine. Maximum range of uncased drilling is 50 m.
This rig is rarely used nowadays because of its limited possibilities, but it can be successfully used e.g. to confirm lithological profile of substratum initially investigated with CPT or DPSH penetrometers, what can significantly reduce the necessary drilling costs and time.

Drilling rig ŁBU is designed for vertical drilling of maximum diameter  Ø  200 mm. Drilling is carried out with continuous flight augers without casing. This machine is used in simple ground conditions, in mineral deposits prospecting and also in cases where decisive factors are (short) time and (low) drilling costs.
Drilling rig is mounted on ZIŁ truck (what allows to access also in rough conditions) and powered by a compression – ignition engine. Maximum range of uncased drilling is 50 m.
This rig is rarely used nowadays because of its limited possibilities, but it can be successfully used e.g. to confirm lithological profile of substratum initially investigated with CPT or DPSH penetrometers, what can significantly reduce the necessary drilling costs and time.

 

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Drilling rig ŁBU during operation

 

BIRDIE 200

Hydraulic drilling rig mounted on tracks BIRDIE 200 is a self-propelled device designed for drilling in soil of different consistency, hard rock and concrete. Drilling device is mounted on tracked chassis of changeable track width, on which also motor set is mounted. Diesel engine (four-stroke, vertical, water-cooled) gives the power for hydraulic pumps of motor set. Drilling can be carried out with the use of augers or as wet drilling. The maximum range of uncased drilling of maximum diameter Ø76 mm is 30 m

 

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Drilling rig BIRDIE 200

 

Technical specifications of the drilling rig as well as its technical drawing are given below:

General dimensions (see figure below)

  • wheel space
  • track width
  • total track length
  • minimum wheel space (with closed tracks)
  • maximum speed
  • maximum load
  • total weight (without additional equipment)
  • 1080 mm
  • 230 mm
  • 1423 mm
  • 764 mm
  • 2 km/h
  • 0.62 kg/cm2
  • 1600 kg

 

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Drilling rig BIRDIE in service position

WINDOW SAMPLER

Window sampler RKS manufactured by Nordmeyer company is designed for soil sampling with the use of percussion method. Sampler is driven into the soil with the use of combustion or electric hammer. This method allows for drilling with continuous sampling of the diameter to Ø100 mm. Typical range of drilling is ca 10 m, or even more in favourable conditions.

 

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(photo: Nordmeyer)

 

DRILLING TRIPODS L-30 and GEO-15

Geprojekt Szczecin” has at its disposal two partially mechanized tripods designed for vertical drilling of maximum diameter Ø200 mm (Fig 1). Drilling can be carried out with the use of:

  1. a slow-rotary method with the use of bucket auger mounted on rod and pulled out when it is filled with cuttings,
  2. a cable tool drilling with the use of bailer lowered into borehole on drill string.

 

Tripods are used mostly in limited access areas where cased drillings are necessary, also for drilling on the water (Fig 2).

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Fig 1. Drilling with the use of tripod (A. Wyra, G. Poloczek Stosowanie maszyn i urządzeń wiertniczych. Poradnik dla ucznia)

Cased drilling starts with bucket auger (“Schappe”) with diameter Φ225 mm. Casing pipes Φ203 mm are lowered into borehole after drilling out at least 1 m of soil or after meeting ground water table, then the drilling is continued with auger of smaller diameter, and pipes are pushed manually during drilling.

Type of drilling tools is adjusted to the drilled soil. Dry sands and cohesive soils are drilled out with the bucket auger and saturated non-cohesive soils with the bailer.

 

SOIL SAMPLER BPE 130

BPE 130 device is a percussive soil sampler. The sampler is driven into the soil with the use of a 70 kg hammer dropped from the height of 400 mm. A-class undisturbed samples of very high quality and of the diameter of Ø 100 mm are obtained this way. The method allows to make continuous sampling in cased boreholes. As the cores are taken to PVC pipes, they can be transported and stored in a safe way.

 

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Photo: Nordmeyer

 

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Photo: Nordmeyer