LONG REACH WELLBORES IN HARD ROCK FORMATIONS BY FLUID POWERED HIGH FREQUENCY PERCUSSION Presentation by Per A. Vatne, CTO E-mail address: pav@hammergy.com GeoEnergi2017 CGER Bergen 22. May 2017 1
Hammergy AS is a start-up company developing and refining the technology of the fluid powered high frequency, high efficiency percussion borehole construction tools and systems. Location: Evje and Kristiansand, Norway. 2
Our basic tool: The HFP - High Frequency Perforator Downhole Pressurized Fluid Powered Percussion Hammer 3
Technology and patent overview Patented technolgy description Patents are granted in a number of countries The patent description explains the basic function. Published in several languages The patent description is not an engineering manual there is some more to it which remains company secret Two patents already granted in Norway - 334793 and 335354 Patent 334 793 All EU countries: Pending USA: Pending Russia: Granted China - Granted awaiting patent letter Canada Deadline for appeals due 17 August 2017 Patent 335 534 All EU countries: Pending USA: Pending Russia: Deadline for appeals due 18 February 2019 China: Appealed. Proceedings ongoing. Hong Kong: Will be approved when Chinese application is accepted Canada: Deadline for appeals due 18 February 2019 4
Technology status The HFP RP178 - Prototype on test stand 5
Technology status Instrumentation for logging pressure peaks by microsecond 6
Technology status - main features HAMMERGY S PATENTED CORE TECHNOLOGY ALLOWS THE PRESSURISED FLUID FLOWING UNIDIRECTIONALLY THROUGH THE HAMMER NO SPOOL VALVES NO BACK AND FORTH FLOW RESILIENCE CAPABILITIES OF COMPONENTS NOT HYDRODYNAMICS - DETERMINE THE CYCLE FREQUENCY THE DIRECT-THROUGH-FLOW TECHNOLOGY MINIMIZES HYDRAULIC LOSSES WHICH IMPROVES EFFICIENCY (SIMPLY PUT: THE CONVERSION OF THE ENERGY OF THE PRESSURIZED FLUID TO PERCUSSIVE POWER DOWNHOLE IS BY THE SAME WAY AS GENERATED BY THE PUMPS ON THE SURFACE; BY PISTON AND SEAT VALVES) THE TECHNOLOGY IS SCALABLE; HIGH FREQUENCY - THUS HIGH ROP - IS MAINTAINED FOR LARGER SIZES THE TECHNOLOGY WORKS WITH OTHER FLUIDS THAN WATER THE TECHNOLOGY WORKS WITH PARTICLE CONTAMINATED WATER, MUD THE TECHNOLOGY WORKS WITH EXTREME HIGH DOWN HOLE TEMPERATURES (AMBITIONS TO DESIGN AND BUILD WITHOUT ELASTOMER SEALS AND MATERIALS) THE TECHNOLOGY WORKS WITH LARGE FLOW AND A WIDE RANGE OF PRESSURE RANGES THE VERSATILITY OF THIS TOOL ALLOWS COMPOSITION OF BHAS FOR ANY THINKABLE APPLICATION 7
Technology status HFP design specification PERCUSSION FREQUENCY: 95 HZ NET PERCUSSION POWER i.e. DEMOLITION POWER: 2-3,5 W/mm 2 ROP: 20 40 m/h IN HARD IGNEOUS ROCK FORMATIONS FLOW DRILLING FLUID: SUFFICIENT FOR 2 m/s ANNULAR VELOCITY PRESSURE DROP: SUFFICIENT TO PRODUCE DESIRED PERCUSSION POWER, NORMALLY 7 MPa (1000 PSI) 8
Percussion technology basics THE IMPACT OF THE HAMMER PISTON ON THE BIT CREATES AN ENERGY WAVE WHICH PROPAGATES THROUGH THE BIT BODY AND HARD METAL INDENTERS INTO THE ROCK. 9
Percussion technology basics PERCUSSION DRILLING: THE BIT INDENTERS TRANSMIT ENERGY ROTARY DRILLING: THE BIT CUTTERS ARE WAVES INTO THE FORMATION WHICH CRACKS ENFORCED TO CUT CHIPS OFF THE FORMATION. FOR HARD ROCK THIS DOES NOT WORK WELL THE BIT INDENTERS ARE MOVED TO THE EDGE OF THE CRATER FOR THE NEXT STROKE. FINE GRAIN CUTTINGS IS PRODUCED 10
Rotary drilling vs percussion drilling 11
Low frequency vs high frequency Frequency matters! 12
Percussion technology basics WHY DOWN HOLE HAMMER-? JOINTED PIPE OR DRILL ROD LOSE ABOUT 8% ENERGY FOR EVERY JOINT THE HAMMER HAVE TO BE DOWN THE HOLE ON THE BIT! 13
Percussion technology basics WHY FLUID NOT COMPRESSED AIR -? WITH WATER DRIVEN DOWN HOLE HAMMER, COMPRESSED AIR POWERED DTH WORK WITH ABOUT 25 BAR PRESSURE. WITH THE BOREHOLE IS HYDROSTATICALLY BALANCED THUS NO LIMITATIONS TO DEPTH WATER INFLUX THE RETURN FLOW WILL STOP AT 250 M DEPTH 14
Borehole construction systems HAMMERGY DEVELOPS TWO SYSTEMS FOR LONG REACH DIRECTIONAL CONTROLLED BOREHOLE TRAJECTORIES: THE RP RIGID PIPE SYSTEM THE FP FLEXIBLE PIPE - SYSTEM CASING IS THE DRILLSTRING COILED TUBING IS THE DRILLSTRING 15
Borehole construction systems THE FP SYSTEM APPLICATIONS: GEOEXCHANGED ENERGY, ENERGY WELLS, CIVIL ENGINEERING MAIN FEATURES: CT (COILED TUBING) IS THE DRILLSTRING CT PREFERABLY OF COMPOSITE MATERIAL, LIGHTWEIGHT, LOW FRICTION, LONG REACH, HIGH MOBILITY AND EASY MOBILIZATION FOR REPLACEMENT OF THE BHA, (BOTTOM HOLE ASSEMBLY) TRIPPING - THE ENTIRE TUBING LENGTH HAVE TO BE SPOOLED BACK NON-ROTATING DRILLSTRING, ONLY THE BIT ROTATES TRACTION JOINT DOWN HOLE FEEDING, CAN CONSTRUCT U-WELL PRESSURE CONTROL ON THE ANNULAR 16
The GEP - GeoExchanged Perforator 17
Borehole construction systems THE RP SYSTEM APPLICATIONS: DEEP GEOTHERMAL ENERGY WELLS, TIGHT ROCK (SHALE) OIL AND GAS WELLS, MINITUNNELS HYDRO- ELECTRICAL POWER, CVIVIL ENGINEERING. MAIN FEATURES: THE TD CASING IS THE DRILLSTRING, NO DRILLPIPE USED COMPACT SITE FOOTPRINT NON-ROTATING DRILLSTRING, ONLY THE HFP ROTATES ENERGY AND COST SAVING FOR REPLACEMENT OF THE BHA TRIPPING THE BHA IS PULLED AND SET WITH WIRELINE RUN TOOL, THE CASING REMAINS ON BOTTOM CONTINUOUS PRESSURE CONTROL ON THE ANNULAR CONTINUOUS UNINTERUPTED CIRCULATION AND FEEDING DURING CONNECTION PRESSURE CONTROL AND CIRCULATION MAINTAINED WHILE REPLACING THE BHA TOP HOLE; THE CONDUCTOR AND SURFACE CASING SET WITH REVERSED CIRCULATION AND CT 18
THE RP-SYSTEM BHA RRT RUNNING AND RETRIEAVAL TOOL AVBV ANNULAR VELOCITY BOOST VALVE PLR PACKING LOCKING AND RETRIEVAL SUB DTHRM DOWN THE HOLE ROTATION MOTOR PDM DCU DIRECTIONAL CONTROL UNIT TFJ TELESCOPIC FEEDING JOINT HFP CASING SHOE 19
He DPA Deep Perforator Apparatus 20
Hammergy the technology to release the huge potential of AGE Autonomous Geoexchanged Energy - AGE AGE highlights AGE stations can be located anywhere Car charging stations General utility 21
Hammergy the technology to release the huge potential of AGE Autonomous Geoexchanged Energy - AGE AGE highlights Geoexchanged energy comprises these factors: Zero emission Zero emission Sustainable Independent of geography, climate conditions, Everlasting Quiet Independent of geography Independent of climate conditions Independent of seasons and sun conditions Autonomously economical, can be built for rural applications 22
Hammergy the technology to release the huge potential of AGE Autonomous Geoexchanged Energy - AGE AGE highlights Converts geothermal energy to electric energy and thermal energy for local consumers. Solar panels add supplementary energy by daytime. Comprises a battery bank to conserve energy to cope with peak hours. 23
Hammergy the technology to release the huge potential of AGE Autonomous Geoexchanged Energy - AGE Heat Exchanger AGE highlights Typical AGE station: Commercially available components and technology The heat pump, heat engine and battery technology presently undergo rapid development 24
Hammergy the technology to make Geothermal Energy Economical Environmentalization of coal power plants Geothermal impact Illustrations visualizes conversion of a coal combustive electric power plant. Deep geothermal U-wells can successively phase out the use of coal 25
THANK YOU FOR THE ATTENTION! 26