INPEX Technical Challenge on IOR/EOR JOGMEC Techno Forum 2016 INPEX - PowerPoint PPT Presentation

INPEX Technical Challenge on IOR/EOR JOGMEC Techno Forum 2016 INPEX CORPORATION November 30, 2016

Four E&P Business Opportunities EOR/IOR Acquisition From Known Producing Assets Hydrocarbon Resources Exploration Unconventional New Basins & Shale Gas & Tight Oil Existing Hubs Enhancement of E & P Activities 1

INPEX Technology Roadmap Conventional Information Focused Technical Themes Technologies Gathering Conventional Exploration, Arctic / Oil Sand / Heavy Oil Deep Water Development New Exploration Concept Production Technologies Coal Bed Methane （ CBM ） Shale Gas / Tight Oil Development and LNG Supply Chain Methane Hydrate Development EOR / IOR ・ ・ Technology Infrastructure Develop Expert Group and Laboratory Facilities • General Specification and Technical Guidelines • Knowledge Management System • 2

IOR Demonstration Project Extended Application to Domestic/Overseas Fields Demonstration Project （ Domestic Field ） • Tight Oil Development • Produced Water Laboratory Test Treatment by (TRC) Membrane (Soto Asahikawa Plant) 3 3

IOR Demonstration Project Yabase Oil Fields, Kita Akita Area Productivi ｔ y Improvement (PI) Demonstaration Project Phase 1 Phase 2 Phase 3 ２０１７ ２０１８ ２０１６ Study & Pilot Well Main Well Selection Field Pre Data Post Study Application PI Acquisition Evaluation Technology Kita Akita Area Development/Production ： 1957 ～ 1973 Depth ： 1,400 ～ 1,700m （ Sandstone A ＆ B Layers ） Producer ： 12 （ Total Wells: 24 ） Permeability ： a few milli_darcy Recovery Factor ： a few % Producer VIII1 層 Top Structure Map 4

Productivity Improvement Study Workflow Petrophysics Interpretation Selection of PI Methods Reservoir Characterization Multi-Lateral Geological/Reservoir Model PVT Core Analysis Acidizi ng Geomechanics Fracturing Flow Test 5

CO 2 Foam: Mobility Control CO 2 Oil  CO 2 Flood Oil recovery incremental by:  Swelling oil  Decreasing oil viscosity  Decreasing IFT  The above can be achieved after CO2 contact to  oil. However, its contacts might be deteriorated due to: Geological uncertainty  CO 2 Foam Oil Gravity segregation   CO 2 Foam Flood Mobility control can be improved.  Development of Nano-particle Stabilized CO2 Foam w/ Domestic University & Chemical Company 6

CO2 Foam: Asphaltene Deposition System Specification  VINCI Technologies  Max Pressure ： 14,500psi  Temperature ： -20 ℃ to 200 ℃  SDS Cell Pump ： 200cc  Recirculation Pump ： 10cc Instrument  HPM ： High Pressure Microscopy  SDS ： Solid Detection System  Viscometer  Densitometer FLASS Flow Assurance System, VINCI Technologies 7

Low Salinity Water Injection for Carbonate Rock ― Incremental Oil from Laboratory & Possible Mechanisms ― Spontaneous Imbibition Core Flood (University of Stavanger) (SPE 137634) Possible Mechanisms  Mineral dissolution  Surface charge alteration  IFT reduction  Ion exchange 8

MEOR: New Concept Bio-methanation from residual oil Convert residual oil to methane (natural Nutrients gas) by indigenous microorganisms in Depleted (& microbes) Oil Field the subsurface reservoirs Why? Recovery Factor : Oil = 30 ～ 40% (Low) Natural Gas :60 ～ 80% (High) Aim at maximum hydrocarbon recovery Target of Research Nutrients CH 3 COOH Bio-conversion of Oil to CH 4 Methane producing archaea Oil degradation bacteria 9

Summary INPEX pursues the following IOR/EOR technologies to increase the reserves;  Productivity Improvement Technology for the tight reservoir as IOR  CO2 EOR with mobility control utilizing CO2 Foam  Low Salinity Water Injection 10