Well Intervention: Challenges

1
The Badger Explorer concept
A rigless method for hydrocarbon exploration
whereby a drilling robot transports formation
logging sensors to evaluate a hydrocarbon
prospect without constructing a well. The
borehole is backfilledby cuttings as the
Badgerprogresses.
2
Economic Benefit

• Small boat or buoy required for power
  communication.
• Exploration/appraisal data cost ?10of
  conventional wells
• Also developmentapplications

3
A fly by wire exploration tool

• Electric motor driven bit
• Cuttings transported behind tool - excess forced
  into formation
• Communication/power cable spooled from onboard
  store as drilling progresses

4
Tentative Specifications

• Conventional logging sondes record formation
  parameters
• Capacity 3000 m (sub-seabed), ?8 borehole
• 2 to 6 months (depends on rock hardness)

Patent Pending
5
Technical Benefit

• Continuous High Quality Data recorded in virgin
  formation no mud invasion
• Zero surface emissions
• No hydro carbons
• No cuttings
• No mud
• Borehole is continuously permanently plugged

6
History

• Initial Blue Sky project with Statoil/BP
• Proof of Concept - no show stoppers
• Bit cooling, cleaning, ROP lifetime
• Well control, cuttings permeability sealing
• Cuttings disposal
• Cable

7
Plan

• Feasibility studies
• Fracturing/cuttings injection
• Cable deployment/friction
• Hole sealing study

Fracture test rig
8
Budget Key Feasibility Study

• Borehole fracturing 750 KNOK
• Cable study 100 KNOK
• Borehole sealing 150 KNOK
• Total 1000 KNOK

• Project schedule 6 Months
• NFR BIP 35 funding confirmed
• Seeking industry participation

9
Commercial Plan
Risk
Market evaluation Patents Business plans
Reward