Technology

Overview


V2H Australia has exclusive access to two types of tight radius drilling technologies developed through separate entities, with alternate end uses in mind. The IP associated with both entities is complementary and value adding, with hybrids of the systems already operating in the field. Both technologies allow multiple horizontal lateral holes to be drilled from an existing vertical well with a view to the following;

  • Jetting of laterals using high pressure water as a cutting medium.
  • Jetting of multiple horizontal laterals from a single vertical well in multiple pay zones or coal seams – increasing production and ultimate recovery.
  • Ability to drain large areas from a single vertical well; and in the case of coal seams, do this without having to understand the stress or cleat / fracture orientation; a requirement of orientating conventional surface to in-seam wells.
  • Proven 300m+ lateral capability to connect to the reservoir and overcome near well bore formation damage (skin).
  • Provide control over the drainage area not available through hydraulic fracture (fracking) and without the environmental or social stigma association.

Market Differentiators


  • Proof of casing exit

    Casing and cement plug retrieved to surface.

  • Proof of formation penetration

    Surveyed drill path defines the aerial extent of the stimulation.

  • Proof of Production Performance

    Historical client data details significant productivity and recoverability uplift.

Benefits


Technical

Drilling multiple laterals in multiple zones from one vertical wellbore allows a significant drainage area from one low cost well.

Economic

Lower capital costs drilling multi-lateral, multi-zone vertical wells with the added benefit of fewer production wells for even greater capital efficiency. Work over existing wells where pay is trapped behind pipe to unlock value with existing infrastructure.

Environment

Unlike fracking, no hydraulic fracturing of the rock occurs. Controlled deployment allows a surveyed drill path within the target strata, defining the aerial extent of the drainage / stimulation.

Safety

Deployed using remote control from outside the hazardous zone and operates in conjunction with secondary well control, blow out preventers (BOP’s).

V2H Systems


V2H System 1 – Work Overs


  • Developed in Texas, US for use on shallow oil wells to bypass near wellbore formation damage in sandstone reservoirs. Adapted to coal and other lithologies.

  • Is a ‘through casing’ system – Reliably mills and returns to surface a plug of casing, cement and formation, creating a window to deploy a high pressure water jet.

  • Uses a ‘weight on bit’ method of deploying a rotating jet head on a variable length, semi-rigid hose connected to high pressure tubing.

V2H System 2 – Completions


  • Developed in the Australia (Brisbane, Qld) for use in degassing low permeability coal.

  • Uses an under-reaming process (either through casing or in open hole) to create a window for deployment of the jetting head.

  • Uses a flexible high pressure hose (similar to a coil tubing unit) to run from surface, through the whipstock allowing long reach, 300m+ holes with real time survey and steering with the added safety features of remote control, off rig operation and elimination of rod handling.