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Transcript of HIWAY Technology
Wellbore design restrictions
Low reservoir pressure
Low reservoir permeability
Inadequate or improper artificial lift Reservoir Problems Cancel 35% of 150
about US$100 billion
in 2008 only. Oil Prices Potential Reservoirs 56% of senior executives at large petroleum companies said that the world will run out of the reasonable price of oil in the next 50 years.
The way to unconventional reservoirs is HiWay technology. A Way To Develop What’s the HiWay technology? HiWay Definition:
Injection of fluids into the formation at a rate and pressure above the fracture pressure of the reservoir to create fractures within the rock.
When fracturing is used?
when the formation doesn’t flow properly. Introduction to Hydraulic Fracturing There are two techniques : Types of Fracturing Increase the conductivity of fluid into the wellbore.
Improve productivity of the formation.
Increase Ultimate Recovery. Oil Vs. Money
Hydraulic Fracturing Concept
Conclusion NOTE: Sand(proppant) Frac. Propping Material Approach 1st Phase: Objective: Conductivity Development Fig.(1): Measuring the conductivity of a proppant column network (Schlumberger, oilfield review Autumn 2011) 2nd Phase: Approach 2. Withstanding Stresses Objectives: Problems 1. Creating Proppant Columns Approach A. Stationary B. Dynamic Approach Fig.(2) Initial proppant slug settling experiment
(Schlumberger, oilfield review Autumn 2011 1. Creating Proppant Columns: Fig.(3) Influence of fibers on proppant slug dispersion during flow through a tubular body (Schlumberger, oilfield review Autumn 2011) C. Testing HiWay Concept Approach 2. Withstanding Stresses: Approach Objective: Slug Stability
2 densitometers 1st Experiment: 2nd Experiment: Objective: Intact Slug Fig. (4) Testing HiWay concept (Schlumberger, oilfield review Autumn 2011) A. Closure Pressure Effect Objective: H & D Fig.(5) Effect of fracture closure on column height
(Schlumberger, oilfield review Autumn 2011) 2. Withstanding Stresses: Approach Objective: Erosion
Approach: Different Rates B. Flow Fluid effect Fig. (6) Measuring proppant column erosion due to fluid flow (Schlumberger, oilfield review Autumn 2011) How Does HiWay
function? Case Studies +5000 jobs worldwide Case Study 1: Case Studies Case Study 1: Case Studies Petrohawk - Eagle Ford Shale Challenge: Solution: Improve production in multi-stage horizontal wells Improve production in multi-stage horizontal wells Results: Heim #2H: +4 MMcfd (37%) increase in initial gas production rate Dilworths #1H: +200 STB/d (32%) Increase in initial oil production rate Case Study 1: Case Studies Petrohawk - Eagle Ford Shale Petrohawk - Eagle Ford Shale Results: Offset wells Comparison Case Study 2: Case Studies Encana, Rocky Mountains HiWay delivers +24% production from Tight Gas Formation Results: Case Study 3: Case Studies Results: Loma La Lata, Argentina HiWay delivers 29% more gas production Case Study 3: Case Studies Loma La Lata, Argentina Results: Operators noticed a production increase over the conventional wells in the first year with a substantial increase in the second. +60 case studies in Egypt proved their success in the Western Desert, Eastern Desert, North and South. What about Egypt? Statistical Review Statistics Statistics Statistics Statistics Statistics HiWay Limitations Statistics Acknowledgment Conclusion Reduce footprint without sacrificing production. Schlumberger, Oilfield Review, Autumn 2011 References Any Questions? Thanks for your attention Improve performance in vertical and horizontal wells. Create infinite fracture conductivity. HiWay Channel Fracturing Fracturing does not change the permeability of the formation, but creates a permeable path for the fluid to the wellbore. Benefits of Fracturing Acidizing Frac. Approach 1. Creating Proppant Columns: Channel Fracturing Hydraulic Fracture 1. Creating Proppant Columns: By BP Statistical Review, June 2012 How does HiWay function? www.carboceramics.com www.slb.com/hiway www.bp.com/statistical review SPE 140549 (with Encana Oil and Gas USA) - Channel Fracturing - A Paradigm Shift in Tight Gas Stimulation (HFTC’11, The Woodlands, USA) SPE 145403 (with PetroHawk) - Channel Fracturing in Horizontal Wellbores: the New Edge of Stimulation Techniques in the Eagle Ford Formation (ATCE’11. Denver, USA. Oct. 2011) Statistics by Schlumberger Statistics by Schlumberger Statistics by Schlumberger Statistics by Schlumberger Statistics by Schlumberger Statistics by Schlumberger Unconsolidated Foramations CBM (Coal Bed Methane) Maquette Core difference between Conventional Hydraulic Frac. and HiWay. Proppant Evolution Proppants have evolved from crude materials, such nut shells, to naturally occurring sands and to high-strength spheres from ceramics. Rasin-coated sands improve packing stability. Particles that hold the fractures open and preserve newly formed pathways. What is propping material? Why Ceramic Proppant? 1- Provide higher strength than sand-based proppants. 3- Provide high spherity & roundness. 4- Chemically inert. 2- Have higher melting points. Fibers Role Sand & sand-base materials become the most popular type of proppant due to availability and low cost 5- Resist Corrosion . Prevent proppant dispersion. Networking the proppant packs together. Improve fluid ability to transport proppants. Decrease fluid viscosity when contacting downhole hydrocarbons.