A set of slides that describe the requirement for stimulated horizontal wells as we progress into poorer rock quality

1. 1
Martin Rylance
Engineering Manager and Senior Advisor
Horizontals – Hydraulic Fracturing Innovation

2. The Big Questions
• Why has this not been performed substantially in higher perm environments ?
• What are the particular issues associated with performing such treatments ?
• What would be required to achieve efficient deployment in higher permeability ?
• What would the potential benefits and efficiencies that could be achieved ?
• When will the Industry be providing these solutions and deploying them ?

3. Completion and Reservoir Dominance
CONVENTIONAL
TRANSITIONAL
UNCONVENTIONAL

4. Frac Enhancement (GAS Example)
> 2,000 acres/well 2,000 acres/well
2,000 acres
LOW-PERM (0.05 – 0.5 mD) (Multi-Frac Horizontal) ULTRA-LOW PERM (< 0.001 mD)
MEDIUM-PERM (1 - 10 mD) (Fractured Vertical)
HIGH PERM (> 10 mD) (Horizontal)
Single well 1,000 m lateral, 4 fracs 16 wells 2,000 m lateral, 60-80 fracs, 16-20 stages
(with more than 1,000 fracs , multiple cluster approach is
dictated by economics not just “pure” engineering)

5. Single-Stage (what we want) Single-Stage (what we achieve)
IN THE AVERAGE ‘PLAY’ WE ARE ONLY TOUCHING 40% to 60% OF THE
RESOURCE
Frac Enhancement (Coverage)

6. Re-Frac (Evidence of Inefficiency)
• Extensive Re-Fracturing campaigns
are appearing across the industry,
demonstrating the well potential.
• Re-Fracturing is often resulting in
restoring wells to rates equal to or
greater than original rates.
• Most Re-Fracturing operations are
using simple vertical well diversion
technology (surface) for execution.
• Many tools being developed to add
to the suite of Re-Fracturing options
for deployment (Mechanical).

7. Resource (and Value) Triangle.

8. The Potential Solution(s)
• CT Fracturing Deployed solutions from all of the major providers.
• CT remains ‘in-hole’ while fracturing (limited at great depth/pressure).
• Specialised Companies (e.g. NCS, TTS ..) are leading the field.

9. BP Approach, Considerations & Value)
• Investigate CT Deployed solutions for Valhall Horizontal well application.
(Change 4-Week dedicated Frac Boat into 4-Day call-off Frac Boat business).
(Additional benefits will free up the CT to perform additional interventions).
• Investigate CT Deployed solutions for Alaska Horizontal well applications.
(Changes a complex Lower-Completion approach into cased-cemented w/ CT)
(Alaska ‘renowned’ for it’s CT skillsets, CT deployment will be straightforward).
• Coordinate experience with L48 (planning CT(NCS) on Eagle Ford (Lewis).
• Integrate all BP/JV Horizontal well fracturing experience into SD via CoP.
(Alaska (Wages), Algeria (Menezes), Clair (Doghmi), L48 Eagle Ford
(Rodgerson), L48 Granite Wash (Casero), Oman (Nicolaysen) and Valhall