Production, Production, Production

We fully understand the commercial implications and impact on Seismic Crew Production, marine Boat/Barge/ROV time and DP vessel down time due to failures in inertial navigation products and services. Our capabilities are designed from the ground up to deliver accuracy with a known quality, while maintaining very high levels of reliability through the use of the latest technologies and methods.

Superior Accuracy, Unprecedented Reliability

The accuracy of a survey method is totally dependent on the reliability of the real-time observations, a well-proven error model is necessary to allow useful quality metrics for the real time position solution and if applicable, a valid post-processing technique. This is true for our subsea combined solutions, our reliable DP data fusion and our land seismic precision survey instruments.

Creating margin for our customers

Our cutting-edge technologies, ‘whatever it takes’ attitude and detailed knowledge of our clients’ production and margin drivers ensure our customers will return to us again and again.

B-PINS^TM is a precise survey tool specifically designed to provide accurate positioning and navigation in GPS denied areas such as under dense vegetation or in urban canyon situations.

B-PINS^TM is a self contained system including:

High-performance inertial sensors

Data fusion software

Hand held data collector – Recon^TM PDA

Power supply – Li Ion batteries

Rugged backpack

B-PINS^TM has applications in land seismic surveys, military or tactical GPS denied areas and emergency or disaster response tracking.

Continuous improvements in weight reduction through the use of proven battery technology, processor selection and man-machine interfaces (data collectors) delivers a powerful lightweight solution. The handheld data collector is a field proven Recon^TM PDA. Through the Z-ING^TM software various survey capabilities exist and this software has been specifically developed to deliver standard file formats commonly used in seismic survey software, such as GPSeismic^®.

The unit has been designed for rugged field applications. The upper shell is molded in a lightweight sturdy plastic that is shock and crack resistant, impervious to sunlight and other natural elements. The pack can be immersed in water up to 30% of its height. The high-performance inertial sensors integrated into this backpack and Zupt’s unique software delivers proven positioning accuracy that is significantly better than the survey tolerances accepted by the international seismic acquisition community.

Please contact us for a discussion of positioning accuracies in various scenarios and sample data sets from field operations.

Part Numbers: Backpack Inertial Navigation system B-PINS

Capabilities:

Lightweight portable solution

Real-time Positioning under all conditions

Static RTK GPS/INS integration

Real-time quality control availability

Higher production than optical surveys

Reduced vegetation clearing

Ergonomically designed

Minimal environmental impact

Improved operational safety

Post-processing – maximum accuracy

Bluetooth comms to Recon from backpack

Options:

Wireless delivered RTK GPS integration

Satellite delivered wide area RTK GPS int.

Higher accuracy two person carry option

Specification:

>10 hours operations on single battery set

Continuous operations with hot swap battery

Complete B-PINS weight <38 lbs.

Job file configuration through GPSeismic^®

Operating Temperature -3ºC to 55ºC

Storage Temperature -20ºC to 90ºC

C-PINS^TM is a survey tool specifically designed to provide precise positioning and navigation for most offshore subsea marine construction operations.

C-PINS^TM delivers the same precision as conventional underwater positioning systems while consuming much less spread time for deployment, calibration and operations.

C-PINS^TM is a fully integrated system including:

High-performance inertial sensors

Data fusion software

I-O hardware interfacing multiple aiding sensors

Subsea housings and interconnecting cables

Real time position, attitude, velocity at 50Hz

Job design and post processing software

C-PINS^TM has applications in:

Metrology – jumper, spoolpiece

Field layout – manifold, SSIV, PLEM installations

Pipeline and Umbilical installation

Pipeline out-of- straightness surveys

USBL smoothing

Decommissioning

In addition to developing a solid architecture during the design of C-PINS we have focused on specific limitations that we believe exist within other subsea aided inertial systems:

Tightly coupled LBL observations allowing dynamic use of lines of position (LoPs) or very sparse LBL

LBL time of validity (tov) through sampling of LBL Tx pings

DVL is coupled at the beam level – more reliable solution

USBL is used to aid the inertial not the other way around

Navigation processing on the vehicle – significantly reducing issues due to slip ring outage and bandwidth demands

IMU flexible – select IMU based on error model requirements

Part Numbers: Subsea Precise Inertial Navigation system C-PINS ROV^TM

Capabilities:

C-PINS can be configured to integrate any or all of the following aiding sensors:

Navigation grade Inertial Measurement Unit (IMU)

Doppler velocity Log (DVL) beam data

Long Baseline lines of position (LoP)

Precise pressure (depth) transducer (dual freq quartz)

Ultra Short Baseline acoustic positioning (USBL)

GPS range and time data (1PPS to UTC)

Speed of sound – real time sound velocity profile (SVP)

Seawater Temperature (PRT)

Options:

Various IMUs depending on overall error budget

Various water depth packaging

Configurations for towfish, AUV as well as ROV

Specification:

4,000m rated system

32cm dia by 50cm long

Weight in air 70kg

Weight in water 55kg

1,000m rated system

29cm dia by 44cm long

Weight in air 52kg

Weight in water 38kg

Power/Comms Requirements:

Power 24 Vdc 45 Watts

Communications

Single 38,400bps RS232 Channel

Connector 13 pin Burton (1,000m)

24 pin Seacon (4,000m)

Dynamic Positioning – Inertial Position Reference Sensor (D-PINS)^TM

D-PINS^TM is an aided inertial position reference sensor specifically designed to provide reliable position inputs to any DP desk through short term outages of either/both DGPS or Acoustics.

D-PINS^TM removes the position jitter from ultra-short baseline acoustic positioning systems (USBL) in deep water significantly reducing rig or construction vessel time when moving onto location.

D-PINS^TM easily installs into existing configurations. The system takes standard DGPS and Acoustic telegrams from existing systems and blends this data with a navigation grade inertial measurement unit to deliver a position telegram into an open position reference slot within the DP desk.

The system can run offline to allow operator familiarity while logging both DGPS, Acoustic and D-PINS data for comparison. Once operators are fully trained on the system D-PINS can be brought on line like any other position reference sensor.

D-PINS^TM is a fully integrated system including:

High-performance inertial sensors

Simple user interface software

Data fusion software

I-O hardware interfacing multiple aiding sensors

Rack mounted hardware and cables

Position, attitude, velocity output at up to 5Hz

Data logging capability

Audit trail for operator history logging

D-PINS^TM delivers the same precision as conventional DGPS or acoustic positioning systems as well as very precise heading and attitude data.

The position out will degrade if no input from either DGPS or acoustics are available. Without any external references the position will drift from the last known position as follows:

> 2 minutes – between 1m to 2m

> 5 minutes – between 5m to 8m

> 10 minutes – >10m

Zupt delivers operationally aware inertial technologies to improve the productivity associated with high cost operations for oil and gas exploration and field development. These capabilities are offered and supported worldwide.

High Resolution – Stack Heading and Electrical Riser Angle System

Many installed Electrical Riser Angle systems fail to deliver the level of resolution needed to allow precise positioning of the surface vessel with respect to the seafloor installed stack to eliminate wear. This combined stack heading and ERA system is the first system to provide a cost effective solution based on state of the art inertial navigation sensors. The SH-ERA system does not use magnetic sensors for heading or attitude and as such can provide very high resolution heading and attitude data deployment after deployment with no loss of accuracy.

The SH-ERA system can be retrofitted into existing BOP mux control systems, consumes little power and the data formats can be modified to mimic many existing systems. The subsea packaging has been designed to fit into a very small volume.

An explosion proof housed (EEX-d) option is available for a surface return angle sensor mounting below the drill floor.

Part Numbers: SH-ERA Options include connectors, mounting brackets and explosion proof housing

SH-ERA is a fully integrated system and includes:

High-performance inertial sensors

Simple user interface software

I-O hardware with multiple output options

Stack Heading, stack attitude, riser attitude output configurable up to 10Hz

Data logging capability

Audit trail for operator history logging

SH-ERA delivers both high resolution data as well as high update rate. SH-ERA can directly interface to the DP desk to provide reliable, high update rate differential data.

Stack heading accuracy +/- 0.4° (Secant Lat)

Stack attitude data +/- 0.03°

Riser attitude data +/- 0.03°

Differential (flex joint) data +/- 0.05°

Input options include an interface to the vessels gyro to automatically compensate for the difference between the vessel heading and the stack heading.

Diameter Height Weight (air)

Riser Unit 120mm(4.75”) 245mm (9.75”) 6kg (13.2lbs)

Stack Unit 180mm (7.0”) 245mm (9.75”) 7.5kg (16.5lbs)

Pressure rating 4,000m (13,000fsw)

Power 20W at 24Vdc. Stack unit powers riser unit

Communications RS232/RS422/RS485 – current loop,

Housings dimensions and weights shown above are for 4,000m rated stainless subsea housings. Both the stack and riser units are mounted vertically with connectors facing down. Connector options are Seacon Brantner PBOF or Subconn metal shell series.

Both the stack and riser systems contain state of the art inertial acceleration and rotational rate sensors—providing optimal angle and heading data.

A new generation of Electromagnetic (EM) survey equipment is being used extensively to assist in the delineation of oil and gas reservoirs. To optimize the resolution from this method of survey the precise heading and attitude of the EM measurement sensor is required. Zupt’s EM-AHRS delivers this through the use of combined inertial and acoustic sensors.

Upon configuration and deployment at the surface the EM-AHRS system operates fully autonomously collecting the required measurements and processing heading and attitude (pitch, roll) of the EM components.

This combined system is the first system to provide a cost effective solution based on state of the art inertial and acoustic navigation sensors. The EM-AHRS system does not use magnetic sensors for heading or attitude and as such can provide very high resolution heading and attitude data deployment after deployment with no loss of accuracy.

The subsea packaging has been designed to fit into a small volume.

An explosion proof housed (EEX-d) option is available for a surface return angle sensor mounting below the drill floor.

Part Numbers: SH-ERA Options include connectors, mounting brackets and explosion proof housing

EM-AHRS is a fully integrated system and includes:

• High-performance inertial sensors
• High range resolution acoustic ranging system
• Extensive configuration software for varied
• deployment scenarios.
• Simple user interface software
• I-O hardware with multiple output options
• Raw and processed data logging capability
• Audit trail for operator history logging

EM-AHRS delivers both high resolution processed data as well as all of the raw observations for QC purposes.

• EM baseline heading +/- 0.9° (Secant Lat)
• Node heading +/- 0.5° (Secant Lat)
• Node attitude data +/- 0.05°
• Node depth +/- 0.5% water depth
• Acoustic range resolution +/-1.5mm

Data can be configured for any format for direct interface into EM survey software.

Diameter Height Weight (air)

Prototype Unit 200mm 345mm 16kg

Production Unit 150mm 390mm 9kg

Depth (pressure) rating 4,000m

Power: 24Vdc—internal battery -up to 90 day deployments Communications: RS232/RS485

Housings dimensions and weights shown above are for 4,000m Rated, aluminum hard anodized unit.

Core components can be accommodated into clients housings if required.

Connector options are Seacon Brantner, Subconn or Client supplied.

µ-TTU^TM (microTTU) a flexible, multi-port, precisely timed, subsea serial multiplexor specifically designed for the harsh environment of ROV operations.

Quickly add additional RS232 or RS422/RS485 channels onto any ROV.

The innovative pressure balanced design ensures that the units are very affordable.

All data multiplexed to the surface is available either on a physical COM port, or as a virtual COM port directly into other applications running on the same computer.

Each sensor port within the µ-TTU is fully configurable from the surface and allows for direct, transparent control of the remote sensor deployed on the ROV. Each channel is independently configurable to the required baud rate and parity settings etc. All configuration is stored in NVRAM. Software and hardware “break” commands are available to access sensor configuration.

Configure onshore for quick installation offshore.

All sensor data can be appended with a precise time tag, or it can be exported in exactly the same form as the original sensor data. A data logging option is also supplied within the surface software to allow individual channels to be logged to separate files.

*Stocked for immediate delivery

Part Numbers: microTTU Serial Multiplexor (*6-232) µ-TTU^TM

microTTU Serial Multiplexor (4-232,1-485) µ-TTU^TM

Configuration options for µ-TTU:

The uplink to the ROV is normally configured for RS232. The uplink can be delivered as RS422/RS485 if the unit is to be used in a long, hard wired configuration.

Inside the µ-TTU we have a total of six RS232 channels ( 3 wire Tx, Rx, SigGnd) and one RS422/RS485 channels (4 wire Tx+/- Rx+/-) available for connection to external sensors. The configuration of the µ-TTU sensor interface is limited to 13 pins for serial comms. A 16 pin connector is used on the “Sensor” end of µ-TTU, 3 of these pins are used for power. Signal grounds are shared. Galvanic isolation is available (option) with less channels through the end cap.

Standard µ-TTU units are configured as below. Other options are available as special order:

Standard configuration—on the shelf

Sensor interfaces—serial and power:

6 RS232 ports

24Vdc, up to 4A 12Vdc, up to 1A

Uplink to ROV

RS232 max 115,200 baud

Input 16 to 30Vdc from ROV

2W for µ-TTU – max 100W output for sensor power

Mechanical – depth rated to 4,000m

Uplink bulkhead connector – 8 pin male – MCBH8M

Sensor bulkhead connector – 16 pin female – MCBH16M

Length 305mm (12”) Diameter 55mm (2”)

Weight in air/water 0.4kg (0.9lb)

Z-TTU^TM is a flexible multi-port, precisely timed data acquisition system specifically designed for the harsh environment of ROV operations.

Each port is configurable, galvanic isolated, protected against static discharges (lightening arrestors) and has separate power supplies.

System architecture

The system hardware is based on a RISC type embedded controller. Digital circuitry is implemented in an FPGA. All Interfaces are galvanic isolated against all other interfaces, power supply and control circuitry.

Software environment

The firmware runs from flash inside a RISC type embedded controller. Firmware can be updated “in-circuit” via JTAG or even in the field via the Umbilical/tether. The code is mostly written in assembly, since the operation requires predictable interrupt response times.

Software development environment

Software is written in assembly using a KEIL assembler compiler.

Timing

The system contains a 5ppb (-30C to +60C) OCXO which is disciplined by GPS 1PPS prior to deployment to deliver time tags of +/- 20ns. Once deployed drift with respect to UTC is +/- 1ms per day when disconnected from GPS. All system clocks are phase locked (PLL) to this 10MHz OCXO.

Part Numbers: Subsea Data Acquisition System Z-TTU^TM

Capabilities:

12 RS232/422 (selectable by SW) ports.

Each port with individual baud-rate generator, UART and FIFO.

12 differential/ single ended pulse input/output.

2 analog 4-20mA current loop 12bit/100Khz

2 analog 16bit/1MHz each with a separate dedicated CPU with DMA

8 range preamplifier,

Full differential input

2 frequency counter inputs for Paroscientific Digiquartz

1 dedicated high speed RS422 port for uplink

1 USB 2.0 full speed (local storage or uplink)

1 GB Ethernet (alternate uplink)

1 +24V power input

1 +24V power output (battery backup)

Options:

Other (less accurate) timing options available for smaller board set.

Reduced port count options available—example a 2 port serial and single hi resolution analog port – over 20 delivered to the field to 4,000m.