Tower Hydrographics (UK) Ltd.

Tower Hydrographic Software, Windows based, flexible, fully configurable and above all, easy to use.

Pipelay and Tug Management


This program is designed to carry out real-time data acquisition for pipelay and pipelay support operations.

The Tower management and support team are all qualified and experienced Hydrographic Surveyors and/or Engineers and have considerable experience in the Oil and Gas industry for pipelay, ROV pipelay support, trenching, ROV inspection and Underwater Operations etc. This ensures that the applications are fully appreciated and understood, and therefore reflected in the software products and support.


In addition to the standard features, this program has the following capabilities:

Barge Control & Tug Management:

• Selection of barge type (Dynamically Positioned or Anchor).

• DP output setup.

• Input of up to 16 fairlead offsets for on-line display.

• Set up of anchor handling tugs, names, interfacing (via telemetry), shapes and offsets for on-line display.

• Setup of anchor status file. Up to 16 anchors, anchor status (stacked, deployed, running, proposed etc.), anchor proposed and drop positions, output of anchor positions via telemetry to tugs, anchor range/bearing to fairleads etc. for on-line display.

• Ability to handle simultaneous anchor operations.

• Generation of barge track.

• Calculation of touchdown position.

• Telemetry to tugs includes respective anchor number and position, barge position and gyro.

• Option to display profile of barge with stinger position/angle and pipe catenary to seabed.

• On-line display routines include the following:

Option to display all fairleads and AHT’s (Anchor Handling Tugs).
Graphical representation of anchor wires being run etc.
Option to use mouse to define E/N on screen for proposed anchor positions and automatic input into proposed anchor position/target file.


Anchor Handling Tug (AHT):

AHT has independent computer and navigation installation.

AHT setup including, name, navigation, vessel shape, vessel offsets (stern roller etc.)

Interfacing to barge via telemetry, Transmission of position and gyro.

Independent Helmsman/Tug Master display with full environmental database.

Display of barge shape/position/heading, full anchor pattern and anchor status.


Anchor proposed target/drop locations automatically updated on reception from barge.

Online Navigation Software

Standard features.

Hydrographic / Bathymetric and Geophysical Surveying.

Dredging.

Pipelay and Tug Management.

Underwater Operations.

Cable Management and Support.

Post Processing Software


Database Creation and Editing.

Digital Terrain Modelling.

Charting.