Oliden Technology

GeoFusionResistivity and Imaging While Drilling

March 2015

GeoFusion Eyes to your reservoir

Application• Formation evaluation

• Geosteering

• Geological structure analysis

• Wellbore quality and stability

Benefit• Optimize well placement

• More accurate reserve estimate

• Data while drilling

Features• Three focused resistivity curves

• Quadrant resistivity during rotating or

sliding

• 7 unfocused curves in horizontal wells

• Fullbore images with 0.5-in resolution

• Largest LWD laterolog DOI in industry

• Resistivity range up to 20,000 Ohm-m

The GeoFusion tool provides 360° of

electrical images and laterolog resistivity

measurements in conductive mud while

drilling. The single collared tool acquires

axially and azimuthally focused resistivities at

multiple depths of investigation and is ideal

for formation evaluation, geosteering, and

fracture and structure analysis in conductive

mud environment. It also offers boundary

detection capability in horizontal wells. It can

be easily integrated with many different MWD

tools and be placed anywhere in your BHA.

With the integrated software, the GeoFusion

tool can be easily programmed and its data

processed.

The GeoFusion tool has been in field tests

since Oct. 2013 and high quality wellbore

images and resistivity curves have been

obtained and verified.

Focused Array Laterolog ResistivityGeoFusion acquires qualitative focused laterolog resistivity of multiple spacings

with excellent vertical resolution for formation evaluation. It can be used to identify

bypassed pay zones and achieve precise reservoir estimate in vertical as well as

high-angle and horizontal wells.

GeoFusion Resistivity vs Wireline DLL

RIT ResistivityWireline Deep Resistivity

LWD RD

LWD RM

LWD RS

Wireline Gamma

Wireline SP

Resistivity ImagingGeoFusion provides resistivity images in real-time (8 to 16 bins) and recorded

mode (128 bins) for well placement in horizontal wells and fracture identification

for completion design. User has the ability to choose the format of the data. Two

azimuthally offset buttons provide redundancies in images and different sensitivity

to wellbore washout.

GeoFusion resistivity image log displayed with different

resolution.

Thin beds

Dark areas indicate

borehole breakout

Sharp Bed

Boundary

GeoFusion resistivity images

Resistivity 128-bin Image 64-bin Image

GeoFusion

delivers focused quantitative array laterolog resistivity measurements and high

resolution images while drilling. It provides both improved depth of investigation

and enhanced image quality as well as increased capability for boundary detection

and geosteering. Its state of the art electronics and robust design also decreases

cost of service and improves efficiency.

General Specifications

Hole size 8 ½ to 9 in. [216 to 230 mm]

Tool length 15.0ft [4.57 m]

Tool Weight 1500 lbm [800kg]

Collar Dimensions

Nominal diameter, API 6.75 in [171.5 mm]

Maximum diameter 8.25 in [210 mm]

Top thread connection NC50 box

Bottom thread connection NC50 box

Max. operating temperature 311 degF [155degC]

Power supply MWD

Tool power 6- 8.5 Watts

Downhole Memory

Capacity 1.0GB

Recording time 400 Hrs

MWD Communication Q-bus or RS485

Measurements Performance

Resistivity Range 0.1 to 20,000 Ohm-m

Accuracy: 0.1- 1000 ohm-m +-5%

1000-2000 ohm-m +-10%

> 2000 Ohm-m +-20%

RUD* RD RM RS

Depth of Investigation. in 20 15 11.6 8

Axial Resolution, in. 8 8 8 8

Image Resolution. in 0.5

Resistivity Environment

Water-based mud Rm < 10 Ohm -m

Mechanical Specifications

Dogleg Severity

Rotary mode 8 /100ft

Sliding mode 16 /100 ft

Hydraulics

Max operating pressure 20,000 psi [137 MPa]

Flow range 0-800 gal/min [0-0.9m3/min]

Pressure drop constant C** 8,500

Max. sand content 3% by volume

Max. system shock level 30 min at Shock Level 3

* RUD is not a focused measurement.

** Pressure drop [psi] equals [mud weight (lbm/gal)2 x flow rate (gal/min)2]/C

o

o

GeoFusion

• Focused Array laterolog resistivity

measurements for formation evaluation

• High resolution wellbore images for

geological structure and fracture

analysis

• High quality real-time image and

boundary detection capability for

geosteering

• Quadrant resistivity measurement

during rotating and sliding

• Redundant measurements stored in

memory

Oliden Technology, LLC10450 Corporate Drive

Sugar Land, Texas 77478

USA

(281)265-0064