Roxar CorrLog And SandLog Wireless Transmitters - Ifea

Wireless Summit 2012, 

Oslo 17 April 

Roxar CorrLog and SandLog 

Wireless Transmitters 

High accuracy on-line monitoring – 

superior information at affordable cost 

Kjell Wold, Commercial Manager, Topside Flow Assurance

2007 Roxar and CorrOcean merged 

• Leading supplier of 

monitoring solutions for the 

oil and gas industry 

• World’s largest supplier of 

subsea monitoring 

instrumentation 

• Global presence with sales 

and technical services 

• 

[File Name or Event] 

Emerson Confidential 

27-Jun-01, Slide 2

Roxar in a Flash 

RFM: Metering and 

instrumentation 

RSS: Reservoir modelling 

and simulation software 

850 employees, 40% 

working outside Norway 

Headquartered in Norway 

Part of Emerson Process 

Management since 2009 



27-Jun-01, Slide 3

Topside (offshore/onshore) 

product portfolio 

Multiphase meters 

Wetgas meters 

Watercut meters 

Sand monitors 

Pig detectors 

Erosion monitors 

Corrosion monitors 

Field Signature Method (FSM) 

With thousands of Roxar Multiphase meters, Watercut meters and Erosion 

monitors installed worldwide, Roxar has established a track record and 

experience like no other company in the industry. 



27-Jun-01, Slide 4

Flow Assurance Business Line 

All flow assurance products and capabilities now combined in one 

Business Line. 

”Flow Assurance” ensure continous production, avoiding hydrate 

formation, scale and sand build-up and avoid excessive corrosion and 

erosion. 

Roxar structure now in-line with customers internal structure; teams 

which advice on flow assurance does that whether for onshore, topside 

or subsea. 



27-Jun-01, Slide 5 

Problem Consequences Solutions Goal 

Scaling 

Hydrates 

Clogging 

Erosion 

Corrosion 

Production loss, 

shutdown or loss 

of the well 

Safety and 

environmental 

hazard 

Water Measurement 

Formation Water Detection 

Scale Inhibitor Injection Valve 

MEG Injection Valve 

Hydrate Management System 

Intrusive Erosion Sensor 

Acoustic Sand Monitor 

Sand Management System 

Water Measurement 

Corrosion Monitoring 

Corrosion Inhibitor Injection Valve 

Corrosion Management System 

Uninterrupted 

maximized 

production

Why Internal Corrosion Monitoring? 

• Corrosion of pipelines and equipment can lead to 

severe safety and environmental hazards 

• Risk of unexpected failure 

• Loss of containment of process media 

• Monitor corrosivity of pipeline fluids 

• Control of corrosion mitigation/inhibitors 

• Monitor inhibitor effectiveness 

Correlate process parameters with measured corrosion 

Measure corrosion over time; 

– Integrity 

– Plan inspection and 

– Input for (Risk based) Inspection Planning 

Through improved corrosion control, justify use of 

carbon steel instead of expensive, corrosion resistant 

alloys. 

Design monitoring system based on 

actual application and needs 



27-Jun-01, Slide 6

Intrusive corrosion monitoring 

Weigh loss coupons 

Corrosion Probes 




– ER (most common) 

– Electrochemical probes 

Retractable type ER probe and coupon 

holder

CorrLog Remote Monitoring Options 



27-Jun-01, Slide 8

Why Sand/Erosion Monitoring 

Sand production becomes more 

critical over time for an oil/gas field 

• increased water production – more 

sand 

• more produced gas – higher 

velocities 

Increased sand/erosion challenges 

Purposes of Sand Monitoring: 

• avoid erosion damage of pipes and 

process equipment due to sand 

erosion 

• optimize production rates to 

”maximum sand free production” or 

”maximum allowed ”sand production. 

• avoid reservoir damage 



27-Jun-01, Slide 9

Sand Erosion Sensor 

• ER elements face flow at optimum angle 

• Measures erosion directly 

• Superior sensitivity (+/-5 nanometers or 0.0002 mils) 

• Reference element in protected location (rear) 

• Multiple elements for redundancy & coverage of entire pipe 

diameter 

• Operates in all flow regimes 



27-Jun-01, Slide 10

Why continous monitoring? 

Continous data increase 

information value 




– More data points better 

accuracy, more reliable 

trend analysis 

– Better correlation with 

process change for process 

control and actions 

– Improved verification prior 

to corrective actions, such 

as process changes 

Well 

choked 

back 

1%, 

curves 

flatten 

off

Why on-line monitoring? 

Real time information to 

user 




– Alarms if corrosion or 

sand/erosion rates change, 

allowing actions before 

damage done 

– Data provided directly to 

user(s) with analysis and 

reporting facilities 

– Less labour required for 

data acquisition, consistent 

data provided independent 

on operator performance

Why Smart Wireless ? 

Wireless technology makes on-line, 

continous monitoring available at lower 

cost 

– Better data, faster information 

– More data – better trending 

– Faster information, early actions 

Increased industry acceptance 

IEC 62591 – WirelessHart TM standard 

– Self organizing, adaptive mesh 

– Integration with other wireless applications 

– Communication direct with control system or 

via Fieldwatch software 

Wireless means no cables to be 

installed, maintained and (re)certified 



27-Jun-01, Slide 13

Wireless Corrosion and 

Sand/Erosion Monitoring 




CorrLog 

Wireless 

SandLog 


Wireless Integrity Control

Roxar ER probe measurement 

principle 

Roxar use two Kelvin connections to measure the two ER probe elements. 




– The first measures the measuring element, through amplifier U1 below 

– The second measures the reference element, through amplifier U2 below 

– Both measurements are done at the same time, ensuring the same current through both 

elements 

– Measurements are done with current in both directions, eliminating thermovolatic effects 

– Analogue to digital conversion (A/D) is done with high accuracy and resolution. 

Resistance values are measured with 24 bit 

resolution. 

The reference resistor changes with temperature; this 

is used to perform a secondary temperature 

compensation if required – without a separate 

temperature sensor. The element work as an RTD – 

Resistance Temperature Detector, similar to a PT100 

element. 

As resistance values for both elements are available, 

troubleshooting and analysis is simplified.

Roxar CorrLog Wireless 

Based on well proven and reliable 

CorrLog instrument combined with 

Emerson wireless technology and 

existing Emerson products 

High accuracy Electrical Resistance 

(ER), Linear Polarization (LPR) and 

galvanic probe technology in same 

instrument 1) 

Similar ”SandLog Wireless” can read 

multielement sand/erosion probes 

High sensitivity (10 ppm-100 ppm of 

element thickness for ER-probe (24 

bit instrument resolution) 

Intrinsically safe 

Compatible with Plantweb and 

Fieldwatch software – possible 

integration with other systems 

1) First release with ER function only. 



27-Jun-01, Slide 16

Roxar CorrLog Wireless – specifications 

Measuring frequency 

Operating Temperature 

Instrument resolution 

Actual probe reading accuracy 

Power source 

Battery Life 

Connection 

Certification 




2 minutes to 24 hours 

-40 O C - + 70 O C (-40F - +158F) 

24 bit 

10 – 100 ppm of probe element 1) 

7,2 V 

1 – 6 years 2) 

Via probe cable, flexible up to 20m 

(65 feet) 

Intrinsically safe 

– (ATEX): II 1 G EEx ia IIC T4, 

– IECEx Ex ia IIC T4, 

– CSA C/US Class 1, Div 1, Groups A, 

B, C, D T4 3) 

1) Depends on probe type, measurement frequency and environmental conditions 

2) Depends on measurement frequency, probe type and monitoring environment (estimate 1,6 years for 

measurement every 15 minutes, 3,5 years if measurements every hour, 6 years measurements every 12 

hours) 

3) All certificates listed above may not be available at time of product introduction, ATEX certification given 

highest priority

Roxar CorrLog Wireless – specifications 

Communication 

Instrument housing 

Electromagnetic compatibility 

Data output 




WirelessHart 2.4 GHz DSSS 

(Discrete Sequential Spread 

Spectrum) 

Painted Aluminium or Stainless 

Steel (AISI 316-L), IP 66 

CE according to EMC/336/EEC 

and 92/31/EEC (Meets all relevant 

requirements of EN 61326-2-2006) 

Selectable – metal loss values 

(use in general control 

system/AMS/Plantweb) and/or raw 

data for use with Roxar Fieldwatch 

software

Roxar SandLog Wireless – 

specifications 

As for Roxar CorrLog 

wireless’ 

Additional capacity to 

read Roxar’s multielement 

sand/erosion 

probes, and Roxar’s 

combined 

sand/erosion/corrosion 

probes. 



27-Jun-01, Slide 19

Roxar CorrLog Wireless 

Wireless CM 

(inside a 848 TX housing) 

Config tools 




HART 

ER PROBE 

)))))) 

)))))) 

Gateway 

Data remapped 

in gateway 

ModbusRTU 

ModbusTCP 

Fieldwatch SW

CorrLog Wireless - configuration 




Fieldwatch

CorrLog /SandLog Wireless 

Power Module Life Estimates, in Years 

Measurement 

frequency 

CorrLog Wireless 

SandLog Wireless 

(1 element probe) 










15 

min 

30 

min 

60 

min 

2 

hours 

12 

hours 

1.6 2.6 3.7 4.7 6.1 6.3 

1.6 2.6 3.7 4.7 6.1 6.3 

1.1 1.9 2.9 4.0 5.9 6.2 

0.8 1.5 2.5 3.6 5.7 6.1 

0.7 1.3 2.2 3.3 5.6 6.0 

Note Assumptions: 

• 70 o F Ambient Temperature 

• 3 network descendents 

• +/- 10% for temperature and network variation 

24 

hours

Corrosion monitoring data - trends 



27-Jun-01, Slide 23

Corrosion monitoring data - analysis 



27-Jun-01, Slide 24

Corrosion monitoring data - 

verification 



27-Jun-01, Slide 25

Why Roxar CorrLog/SandLog Wireless? 

Combines ER, LPR and 

galvanic measurements in 

one instrument 1) 

Allows up to 20 meters 

cable to sensor - more 

flexible transmitter 

positoning 




– Replacement of batteries, 

instrument maintenance 

– Easier replacement of 

probe 

– Optimised positioning for 

wireless signal routing 

1) First release with ER function only. 

Open technology – can 

read most common 

suppliers’ probes 

Choice of metal loss data 

direct in control system or 

raw data for analysis and 

reporting using Roxar 

Fieldwatch 

International certification 

and approval of products 

Integrated Emerson 

Smart Wireless Product

Why Roxar Corrosion and Sand 

Monitoring Solutions? 

Integrated part of Emerson 

Process Management global 

sales and service organization. 




– Technical solutions, project 

integration, after sales 

services 

30 years experience as quality 

provider and technology driver 

Complete product range of 

mechanical tools as well as 

sohphisticated instruments 

Focus and flexibility to adapt to 

client needs

Why Roxar Corrosion and Sand 

Monitoring Solutions? 

Uniqe range of products 

that can be integrated in 

one monitoring solution 




– Intrusive corrosion 

monitoring 

– Non-intrusive corrosion/ 

erosion monitoring (FSM) 

– Intrusive sand/erosion 

monitoring 

– Acoustic, non-intrusive 

snad monitors (SAM) 

– Acoustic, non-intrusive pig 

detectors 

– All handled trough 

Fieldwatch software 

Onshore

Emerson Process Management 

Core Offerings & Key Brands 

PlantWeb® Digital 

Plant Architecture 

Award-winning network 

platform that seamlessly 

integrates plant-wide 

automation to deliver 

real-time insight for 

better decisions and 

better results 




Systems & Asset 

Management 

Systems and software 

for precise plant 

process control, safety, 

reliability and 

operations 

management 

Measurement 

& Analytical 

Precision instruments 

for measuring 

pressure, level, 

temperature, flow or 

composition of gases 

and liquids 

Control Valves 

& Regulators 

Properly matched 

control devices that 

ensure accuracy, 

reliability, safety and 

productivity of plant 

processes 

Industry Solutions 

& Expertise 

Robust array of 

process automation 

& asset optimization 

services, engineering 

and project 

management

Emerson’s Large Smart Wireless 

Portfolio 




Hydrocarbon 

Leak Detection 

6081C 

Conductivity 

702 

Discrete 

6081 pH 

648 & 248 

Temperature 

708 Acoustic 

Transmitter 

2160 Vibrating 

Fork Liquid Level 

Switch 

CSI 9420 

Vibration 

848T High 

Density 

Temperature 

Smart Wireless 

THUM Adapter 

CorrLog 

FY 12 

4300 Series 

Position Monitor 

Smart 


Gateway 

Wireless Plant Network 

Capabilities 

2051 & 3051 

Series 

FY 12 

Delta V Wireless 

I/O Card with 781 

Field Link 

ROC, Control Wave, Flow Boss 

WirelessHART Interface 

FY 12 

3051S Series 

Pressure, Level & Flow

Observations - comments 

Increased acceptance for Wireless communication – also 

offshore/upstream oil and gas production 

Particular interest in Brown Field applications – Wireless 

allows on-line upgrades at affordable cost 

Trend towards integration of more monitoring functions in 

integrated systems – both for cabled and wireless 

solutions. 

Wireless technology requires licenses and country 

specific approvals – challenge for global exports and 

logistics 

Market shift to wireless technology – to which extent? 



27-Jun-01, Slide 31

Questions? Comments? 




Thank you for your attention!

Roxar CorrLog And SandLog Wireless Transmitters - Ifea

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