Core Drilling

PT. GEOSERVICES started its Drilling Division in 1974. After three decades of steady progress, we have become one of the leading slimhole drilling companies in Indonesia. This division has developed many kinds of drilling methods from diamond coring open hole drilling to large hole drilling. It is licensed as a drilling contractor by the Directorate General of Oil and Gas (MIGAS).


  1. Exploration drilling for minerals and coal
  2. Water well drilling
  3. Geothermal exploration drilling to obtain temperature and pressure measurements
  4. Stratigraphic drilling for oil exploration
  5. Geotechnical drilling for civil engineering work
  6. Drilling for grouting
  7. Environmental drilling


We have 22 drilling machines, with capacities ranging from 30 m to 1,000 m, including:

  1. Long Year 44/38/34
  2. Tone TBM-72/TAS-3E
  3. Koken EP-IW/OE-2L
  4. YBM 3E/YSO 1
  5. JKS Winkie

We also have 27 pumps for grouting and mud/water supply, including those made by:

  1. Bean Royal
  2. FMC
  3. YBM
  4. Koken
  5. Tone
  6. Gardner Denver


  1. Welding machines
  2. Genset
  3. Compressors
  4. Centrifugal and submersible pumps
  5. BOP
  6. Accumulators
  7. Work Shop

The Drilling Division has access to the following services from other divisions of the company:

  1. Electric slim hole logging
  2. Chemical analysis of water, gas, and metals
  3. Core slabbing, preservation, and description
  4. Well site geology

Further Information

Address : Jl. Setiabudi 79-81, Bandung 40153
Phones : (022) 203 1316, (022) 432 2306, (022) 203 8309
Fax : (022) 203 1198
Email :
Contact : Yonty Arief
Hilman Suhelmi

Who We Are

Founded in 1971 to offer services to the mining industry, PT Geoservices (Ltd) evolved into a fully integrated exploration services company. Employing more than 600 people, some of which are expert in specialized fields from a number of foreign countries, the company is offering in mapping surveys, geology, geophysics, downhole measurements, borehole drilling, laboratories analysis, and cargo superintending for quantity and quality.

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Our Location

Officesmall  Jl. Minangkabau Barat No.34 Jakarta Selatan 12970
Phonesmall  (+62 21) 830 5555, 831 8989
Faxsmall  (+62 21) 831 1454

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