TACROM INTRODUCTION Company Structure Parent Company: C.A.T. GmbH TACROM INTRODUCTION Company Presentation June 2006-Tacrom Services was established in Romania Oct 2006-first frac campaign in Moinesti area (10 wells) Since then we performed 160 fracs on-shore and off-shore of Romania, Azerbaijan and Bulgaria March 2008-we started to provide coil tubing and nitrogen service (more than 100 jobs in Romania) June 2008-gravel-pack service was provided (more than 45 jobs in Romania) TACROM INTRODUCTION Services Provided Hydraulic Fracs Acid Fracs Frac-Packs Acidizing Gravel-Packs Coil Tubing & Nitrogen Service TACROM INTRODUCTION Hydraulic Fracs The objective of hydraulic fracturing is to increase well productivity by creating a highly conductive flow path some distance away from the well bore Using this technology we can increase production rates as well as overall recoverable hydrocarbons. TACROM INTRODUCTION Hydraulic Fracs TACROM INTRODUCTION Acid Fracs Much of the theory of hydraulic (proppant) fracturing is applicable to acid fracturing especially regarding fracture initiation and propagation. Leak-off and fracture conductivity are however fundamentally different Acids create enhanced productivity by dissolving acid-soluble rocks, such as carbonates. The acid etches (dissolves) the walls of the fracture. Alternatively, the acid leaks off into the formation (accelerated by wormhole formation) TACROM INTRODUCTION Acid Fracs The most common acid system is hydrochloric acid and this reacts effectively with above mentioned rocks TACROM INTRODUCTION Frac-Packs Frac-Packs are a combination of a hydraulic fracturing and a gravel pack This type of treatment is suitable for medium permeability unconsolidated formations Is reducing to 0 formation sand flow and is creating a hi-permeability path for hydrocarbons TACROM INTRODUCTION Acidizing Apart from acid fracturing jobs, there are also two categories of acid treatment: - acid washing - matrix acidizing In acid washing, the objective is simply tubular and wellbore cleaning. Treatment of the formation is not intended. For matrix acidizing, acids are used to create enhanced productivity when the acid reacts with the soluble substances in the formation matrix to enlarge the pore spaces. Hydrofluoric acid (HF) is occasionally used in sandstones for the removal of fines or clay minerals. It is never used in carbonate reservoirs as it produces an insoluble precipitate (calcium fluoride) TACROM INTRODUCTION Gravel-Packs Gravel-packs are sand control operations applicable to unconsolidated hydrocarbons reservoirs in terms of reducing dramatically the sand flow, this way extending the work over intervals and life for bottomhole equipment TACROM INTRODUCTION Well Candidate Evaluation Hydraulic fracturing is generally applicable in reservoirs with low permeabilities (< 10 mD) FracPacks (Sand Control) in moderately permeable reservoirs Well selection involves finding candidates that will benifit from increasing payzone conductivity All treatments require reservoir pressure for the drive mechanism The history of stimulation operations should be taken into consideration TACROM INTRODUCTION Well Candidate Evaluation The fracture must not propagate in water-saturated zones Wells with high skin factor Wellbore integrity Possibility of equipment emplacement at the wellsite TACROM INTRODUCTION Fracture Summary TACROM INTRODUCTION Statistics of Increased Production M-710 Oil Production Post Frac Oil Rate Prefrac Oil Rate Post Frac Cumulative Oil 50 Prefrac Cumulative Oil 2500 40 2000 35 30 1500 25 20 1000 15 10 500 5 0 0 50 100 Cumulative Days 150 0 200 Cumulative Oil (m³) Oil Production Rate (m³/day) 45 TACROM INTRODUCTION Operational Overview All of the services provided by Tacrom Services are done in a professional manner Production gained after stimulation average 2 to 4 times more. TACROM INTRODUCTION Fracturing Equipment 10 m3/min Blender. Fully process controled Hydration Unit. On the fly mixing of polymer 2,250 HHP Pumptrucks. State of the Art Data Acquisition Truck Sandtruck - proppant handling Efficient Rig Up/Down Heating and filtering of frac fluid Purpose built, stackable frac tanks Providing underbalanced well cleanout after the frac TACROM INTRODUCTION 10 m3/min BLENDER TACROM INTRODUCTION 10 m3/min BLENDER Truck mounted hydraulically driven mixing and blending unit Fully computerized on the fly mixing capability 2 each sand screws up to 6,0 tons / min 2 each dry additive feeders 2 each liquid additive feeders 450 HP available from truck engine TACROM INTRODUCTION Hydration Unit TACROM INTRODUCTION Hydration Unit Mixing Unit for linear gel preparation Hydraulically driven pumps. Installed Power 410 HP Discharge rate: Up to 10 m3/minute Chemical Feeders: 1 each dry chemical feeder for guar injection 3 each liquid chemical pumps with coreolis flow meters 26 m3 on board storage 3 magflow flow meters for mixing and transferring fluid Total “mix on the fly” technology. No contamination of water tanks. No wasted chemicals or mixing time compared to batch mixing TACROM INTRODUCTION 60 tonnes Proppant Truck TACROM INTRODUCTION 60 tonnes Proppant Truck Hydraulically operated Dumper Fully enclosed, two compartment design 42 m3 storage capacity (60 ton maximum) Roadweight 36 tons maximum TACROM INTRODUCTION 2250 HHP Pump Unit TACROM INTRODUCTION 2250 HHP Pump Unit Truck mounted remote controlled pump units SPM Triplex Pump, 5“ Fluid End, Allison Transmision, MTU Diesel Engine Work Pressure: 1000 bar max. Rate: 500 – 2200 l/min TACROM INTRODUCTION Data Acquisition Truck TACROM INTRODUCTION Data Acquisition Truck Air Conditioned Design Self Powered - 30 kW Generator Remote Control Frac Equipment Monitoring and Data Recording Real time data transfer to customer State of the Art Meyer‘s Software MFrac – Treatment Design MinFrac - Minifrac Analyses MFrac & MView – Treatment Control TACROM INTRODUCTION Data Acquisition Truck TACROM INTRODUCTION 3“ SPM 1502 Piping TACROM INTRODUCTION Combination heating/filtering unit TACROM ITRODUCTION Combination heating/filtering unit Compact 4x4 chassis Parallel, double pod design for efficient operation 100 microns primary and 5 microns secondary filters 90 m3/ hour filtering (with normal field water) 3.5 million BTU (1025 kW/hr) heater unit 45 m3/hour heating (from 20C to 200C.) Heat alone,filter alone, or combination TACROM INTRODUCTION Filtering unit TACROM INTRODUCTION Filtering unit Compact skid or design Transport on trailer or flatbed truck 24 kW Hatz diesel motor Parallel, double pod design for efficient operation 100 micron primary and 5 micron secondary filters 90 m3/ hour filtering (with normal field water) Clean and filter simultaneously TACROM INTRODUCTION Intermediate, 2800m CTU TACROM INTRODUCTION Intermediate CTU 2800 meters of 1 ¼ tubing on the reel Compact, efficient design. Crane included on unit. 18 scm/minute 210 bar air compressor included Foamer pump included for foam cleanouts All variables recorded during the operation Full job report given to customer. Graphical and/or tabular data offered Optional pressure control equipment. Low cost 210 bar annular bag or 700 bar bop‘s. Double or triple pressure control offered. Optional nitrogen service for inert gas requirements Extremely fast Rig up and rig down. Fully trained, experienced crew. TACROM INTRODUCTION Flowback Trailer 10 m3 Flowback trailer delivered with CT unit. Compact, efficient design. Handles all wellbore debris Degasser included. No spills. No mess. TACROM INTRODUCTION Flameless Nitrogen Pumper TACROM INTRODUCTION Flameless Nitrogen Pumper 10-85 scm/minute pump rates possible 700 bar pressure limitation Highly accurate Electromagnetic flowmeter Flameless heating of nitrogen for safe operation Full recording of all pumping variables. All data will be included in the customer report 10,000 liter on board storage tank. Most jobs will not require additional product. Customer charged only for nitrogen pumped down the well. TACROM INTRODUCTION Mobile, versatile, purpose built equipment TACROM INTRODUCTION Treatment Design Well selection involves finding candidates that will benifit from increasing payzone conductivity. High pressure, low perm, high skin wells are the most desired candidates. Meyer‘s Frac Software State of the Art Software Package Continous Upgrading MFrac – Treatment Design Minfrac – Pressure Analyses MView – Data Processing MProd & MNPV - Economics TACROM INTRODUCTION Meyer‘s Software Process Control Frac Data Management Frac Design Frac Geometry Modelling Matching Production to stimulation design TACROM INTRODUCTION DATA REQUIREMENTS Reservoir Data Geo-Mechanical Data Frac Fluid Data Proppant Data DATA SOURCES Well Logs Core and Cuttings Analyses Well Tests TACROM INTRODUCTION Rock Properties MFRAC TACROM INTRODUCTION Fracture Geometry MFRAC TACROM INTRODUCTION Minifrac Step Rate Test Fracture Extension Pressure Step Down Test Near Wellbore Friction Perforation Friction Pressure Decline Analysis ISIP Fluid Efficiency kh, k, p* TACROM INTRODUCTION STEP RATE TEST MinFRAC TACROM INTRODUCTION STEP DOWN TEST MinFRAC TACROM INTRODUCTION Minifrac Analisys MinFRAC TACROM INTRODUCTION MView / MFrac Control Treatment Net Pressure Early Detection of Screen Out Displacement MProd / MNpv Production analysis and future production estimation Net present value TACROM INTRODUCTION Real time parameters MView TACROM INTRODUCTION Prefrac Production Estimation MProd TACROM INTRODUCTION Net Present Value MNpv TACROM INTRODUCTION Fluid Systems & Chemicals FRAC FLUIDS Water Base Oil Base Foam Base Acid Base PROPPANT Quartz Sand Sintered Bauxite Ceramics Resin Coated ADDITIVES Biocides Buffers Polymers Crosslinkers Temperature Stabilizers Breakers Friction Reducers Surfactants Demulsifier Foamer Clay Stabilizer Fluid Loss Additives Diverters TACROM INTRODUCTION What can Tacrom do for you? Assist in well selection Assist in well preparation Arrange subcontractors for logging, downhole equipment and surface pressure equipment. Supply engineering for frac design Supply tanks, equipment and chemicals for stimulation treatments Perform well stimulation treatments with acid or proppant fracs Gravel-packs operations Perform matrix acid treatments with or without nitrogen, using conventional tubing or coil tubing Post frac underbalanced cleanout using coil tubing TACROM INTRODUCTION THANK YOU QUESTIONS