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Medco awards semi-submersible drilling rig contract to JDC

JDC Hakuryu-5 semi-submersible rig (Image credit: JDC)

JAKARTA ( – PT Medco E&P Indonesia, a subsidiary of Indonesian listed oil and gas company PT Medco Energi Internasional Tbk (IDX:MEDC) has awarded a drilling contract to PT Japan Drilling Indonesia (JDI) to provide semi-submersible drilling rig “Hakuryu-5).

PT JDI is a subsidiary of Japan Drilling Co., Ltd (JDC).

“Japan Drilling Co., Ltd. (JDC) is pleased to announce that its subsidiary company PT Japan Drilling Indonesia together with a shipping company in Indonesia has entered into a drilling contract with Medco E&P Natuna Ltd for the provision of a semi-submersible drilling rig “HAKURYU-5″,” JDC said in a statement.

The offshore drilling rig works will cover drilling or sidetracking, workover as well as plugging and abandonment of wells in Block B, Natuna Sea.

The main terms of the drilling contract are as follows:

1. Operating Area : Offshore Natuna, Indonesia
2. Estimated Commencement Time: Around July – August 2019
3. Period of Contract: 2 firm wells (approx. 123 days) + 2 option wells (approx. 98 days)

In November 2016, Medco Energi acquired participating interest in the South Natuna Sea Block B PSC (SNSB), owned by ConocoPhillips Indonesia Inc. Ltd. (CIIL) and ConocoPhillips Singapore Operations Pte. Ltd. (CSOP), both subsidiaries of ConocoPhillips (COP).

CIIL is the Operator of the South Natuna Sea Block B PSC (SNSB) with a 40% working interest and is also the Operator of the West Natuna Transportation System (WNTS).

CSOP operates the Onshore Receiving Facility (ORF) in Singapore. The WNTS infrastructure together with the Malaysian pipeline is and will continue to be the focal point for the commercialization of existing discoveries and ongoing exploration activity within the Natuna area.

Profile of Hakuryu-5 semi-submersible offshore rig:

Design Mitsubishi MD 501 propulsion-assisted semi-submersible drilling rig
Overall Length 106 m including helideck
Overall Breadth 78.8 m including anchor rack
Main Deck Elevation 37.5 m
Max. Variable Deck Load 4,000 ton (Drilling)
Max. Operating Water Depth 500 m (Option 600 m)
Max. Drilling Depth 29,527 ft (9,000 m)
Displacement 32,593 ton
Quarters 150 beds
Class ABS, IMO MODU A414
Ship Registration Panama
Construction Yard Hiroshima Shipyard & Engine Works, Mitsubishi Heavy Industries, Ltd.
Life enhanced and upgraded  February 2009
Drawworks  CONTINENTAL EMSCO-Mitsubishi / C-3 Type II
Mud Pumps CONTINENTAL EMSCO-Mitsubishi / FB-1600 x 2
Top Drive VARCO / TDS-4S
BOP 18 3/4″ / 10K BOP stack
Drill String Compensator NL Shaffer / 500K 18 ft stroke
Riser Pipe Tensioners NL Shaffer / 80K x 12
Riser Pipes VETCO / 21″ OD / MR-6C/6E
Engines DAIHATSU / 8VSHTC-26D 2, 100PS x 4
Electricity Generators 2,000 KVA AC x 4
Anchors Mitsubishi Electric Anchor Windlass x 4, Bruce FFTS MK4 Anchor (12 tons) x 8


Written by Roffie Kurniawan (Email:

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