petromar technologies, inc. confidential · wireline casing wear in deep ... image horizontal wells...
TRANSCRIPT
1 PetroMar Technologies, Inc. Confidential
Image is Worth a Thousand Words …
Long history and mature workflows
Broad range of applications Geology
Lithofacies
Drilling, well placement
Completions
Part of complex Petrophysical workflows including other information sources
In most cases accompanied by Caliper
Electrical methods dominated ….
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New Imaging Challenges
Borehole Imaging Difficult
Costly & Risky
Electrically Nonconductive
Mud
Heavy Mud
Highly Deviated or
Horizontal Well
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How is the Industry Coping?
Using wireline oil based imagers on very few wells Very expensive (rig time +
service) Risk of LIH Wireline Casing wear in Deep
Water Imaging quality severely
challenged in horizontal wells and with poor borehole quality
Until FracView….
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Image courtesy of LOGICOM E&P
Solving a Long Standing Challenge
FracView™ acquires high resolution borehole images in any mud, including heavy Oil Based Mud
Compatible with any service provider and BHA
Vertical, deviated and horizontal wells No disruption to the drilling process Affordable Easily integrated into the petro-physical
interpretation workflow
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About FracView
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FracView is the winner of the 2017 Shale Gas Innovation Contest
• The first tool on the market to image horizontal wells while drilling with heavy OBM
• Applications for both conventional and unconventional reservoirs
• Proven in multiple long horizontal wells
PetroMar’s FracView Deployment – BHA assembly in progress
FracView Characteristics
High resolution LWD borehole imager Acoustic impedance images Caliper Drilling dynamics information Two independent transducers Better than 0.25” image resolution 360 degrees coverage Down to 1 ms sampling rate, insensitive to
high RPM Engineered for robustness and reliability DLIS output compatible with petro-
physical interpretation software Hooks in place for integration with RT
communication
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FracView Characteristics
Dynamically focused transducer Acquisition sequences
optimized for specific applications
Autonomous operation Internal batteries and memory
for 200 hours + of continuous operation
Internal orientation and drilling dynamics system
Total tool length 5ft 2in in the 6.5 inch size
Standard API connections, fits any BHA
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Ultrasonic Beam Focal Distance Controlled by DSP
Sensitivity to Rock Properties
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CLAY Formation rocks F(matrix & porosity)
Contrast in signal
Contrast in rock
impedance
Sensitivity to Fractures and Texture
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Laboratory Testing
Carbonate sample photograph Acoustic Image, 1.3” distance
0.5in
Sample holder
Sensitivity to Fractures and Texture
0.5in
Sample holder
Focus Effect on Image and Caliper
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Focused TX, Unfocused RX Focused TX and RX Unfocused TX and RX
Reduced sensitivity to
angle of incidence
Mea
sure
d Ca
liper
Angle of Incidence
Heavy Mud Impact
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14 lbs/gal mud
Sample located 1.3 inch from transducer
18 lbs/gal mud
0.5in
Applications
Geology Petrophysics Well and field engineering Advantages
While drilling imaging in any mud system Eliminating the cost and risk of wireline runs When used for engineered completion lowering the cost and
environmental footprint of fracking Benefitting from reduced circulating temperature when imaging in high
temperature reservoirs
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Example Applications
Fracture and breakout characterization Like interval identification Cross-well fracture detection Hydraulic fracture optimization
Fine layers and vugs detection Formation stress analysis Borehole stability Dip measurement Lithology and facies identification Advanced formation evaluation in combination with other data, ex.
Resistivity, NMR, density (improved permeability estimations, carbonate interpretation, laminated formations)
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Field Examples
Field : Marcellus
8.5 in borehole
SOBM 12.5 lbs/gal
120 RPM
16 De
pth
inte
rval
7.7
ft
Field Test #2 – Long Lateral
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Time [s]
Field Test #2 – Long Lateral
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Processing Workflow
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Job Planning
•Well information •Customer objectives •Mud testing • FracView Configuration
Logging
•Tool verification • Logging •Tool readout and verification
Pre-processing
•Generation of images •QC •Conversion to DLIS
Petrophysical interpretation
• Fracture ID and classification •Dip picking •Geological interpretation
Compatibility with Image Interpretation Software
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Borehole Caliper
FracView provides high resolution borehole caliper
High precision mean borehole diameter logs can also be generated
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Depth =XX32 ft
Image Repeatability
Multiple passes over ~ 100 ft section
Zoom into a fracture and breakout
Raw data, no dynamic normalization or other image enhancements
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2ft
Caliper Repeatability
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10 ft/division 10 ft/division
Product Specifications
Nominal Collar OD [in] 4-3/4* 6-1/2 8 ** Tool length [ft.] 5ft 5in 5ft 2in 5ft 2in Top connection - box NC38 NC50 6-5/8 Reg. Bottom connection - box NC38 NC50 6-5/8 Reg. Make-up torque [ft-lbs] 10,000 28,000 56,000 Maximum dogleg severity, rotating [°per 100 ft.]
15* 10* 8*
Maximum dogleg severity, sliding [°per 100 ft.] 30 21 15
Maximum mud flow rate [GPM] 250 700 800
Maximum operating temperature [°C] 150 and 165 versions available
Maximum survival temperature [°C] 155 and 175 respectively
Maximum operating pressure [KSI] 20 and 25 versions available
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M E C H A N I C A L A N D E N V I R O N M E N T A L
* 4-3/4” tool in manufacturing ** 8” tool on roadmap. Sensor and electronics designed to be shared among all 3 tool sizes. Larger sizes possible.
Product Specifications
Size [in] 4-3/4 6-1/2 8 Borehole size range [in] 5.875 … 7.75 7.875 … 9.875 9.5 … 12.25
Max mud weight [lbs/gal] 14 (18 with reduced standoff)
Range of transceiver focus 0.75…2.5” (dynamically adjusting to environment)
Imaging resolution ~0.2”
Sampling rate User configurable, down to 1ms
Recommended stabilizer 0.25” under gauge recommended
Power source Internal batteries
Battery endurance Dependent on acquisition configuration, min 190 hours of continuous operation on high capacity batteries
Real time communication On the roadmap, hooks in place
Internal memory Sufficient for >200 hours of continuous imaging in downhole processing mode. Typical readout time of 200 hrs of processed image <10 minutes (acquisition configuration dependent). Rich data modes require longer
readout time.
High speed readout port 80 Mbps high speed sustained read rate (GBit in development)
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P E R F O R M A N C E *
* Performance shown in commercial mode, rich data field test and experimental acquisition modes available
Q&A
THANK YOU !
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