Oil and Gas Production: EU-PDT-Coil

Case study: DiTeSt System

Thermoplastic composite coiled tubing
Distributed strain and temperature sensing
SMARTape

Project Description

Summary: Research and development of an intelligent Power and Data Transmission composite COILed tubing for the exploration of hydrocarbons - PDT-COIL. Sensors and conductors are to be embedded in tubing. European Union funded RD project, FP5, Growth.

Clients: Shell

Place: EU and Switzerland (EU)

Period: 2002 - 2004

Installation: BJ Services / Airborne / ETHZ - EEH / Uni Leuven

Structure's short description: The thermoplastic composite coiled-tubing consists of liner wrapped with structural carbon fibre reinforced thermocomposite tapes and protection glass fibres reinforced layers. It consist typically of several modules assembled in several kilometers long tubing with a diameter smaller than 80 mm. The fibre optic sensors are to be embedded between the structural layers of the tubing.

Aim of monitoring: R&D of intelligent and high-temperature, corrosion & fatigue resistant thermoplastic composite coiled tubing for the efficient and cost-effective exploration of hydrocarbons. Embedded electrical power conductors for a remote controlled electric drilling motor. Fibre optic sensing system to monitor the well, operation and structural integrity of the coil. Virtual insensitive to fatigue. Research on chemical ageing. Modify existing CT software and integration of control software. Concept prototype field-testing. Applications: drilling, workovers and intelligent well completions. Substantial cost savings, compact and low-noise equipment, major reduction of rock cuttings & power exhaust. Extended horizontal reach due to lightweight coil. Less rigs, smaller rigs, rig-less. Preservation of protected and inhabited areas. Increased reliability & safety. Improved working conditions. 100% recycling possible. Multiple Spin-offs. The particular aim of SMARTEC is to develop full system able to monitor strain, bending, torsion and temperature along the tubing based on use of the DiTeSt.

Number of sensor: 0

Main Results: Current status: Research phase completed, demonstration phase started Miniaturised multifibre connector selected, and integration procedure developed. Sensor topologies for succesfully developed and tested. Embedding procedures develloped. Algorithms for data analysis successfully develloped and tested.

Conceptual drawing of the intelligent coiled tubing

Testing of sensor, topolgies and DiTeSt performance on 15 m long mock-up

Strain measured using DiTeSt system and optical fibres with different angles compared with terorical estimations

Bibliography:

Bohrgest?ge vor der Rolle , S. Neuhold, K. Fr?ich, D. Inaudi, Bulletin SEV/AES, 15/03, pp 32-36, 2003

Integration of Fiber Optic Sensing Systems into Composite Structures for Oil & Gas Production and Transport , D. Inaudi, B. Glisic, Fourth International Conference on Composite Materials and Structures for Offshore Operations (CMOO-4), Houston, October 4-6, 2005

Integration of distributed strain and temperature sensors in composite coiled tubing , D. Inaudi, B. Glisic, SPIE Smart Structures and Materials Conference in San Diego. 2006 February 27, March 2, 2006

Fiber Optic Sensing for Innovative Oil & Gas Production and Transport Systems , D. Inaudi, B. Glisic, 18th International Conference on Optical Fiber Sensors, October 23-27, Cancun, Mexico, 2006

Long-Range Pipeline Monitoring By Distributed Fiber Optic Sensing , D. Inaudi, B. Glisic, 6th International Pipeline Conference September 25 - 29, 2006, Calgary, Alberta, Canada, 2006

Distributed Fibre Optic Sensing for Long-Range Pipeline Monitoring , Daniele Inaudi, Branko Glisic, The 3rd International Conference on Structural Health Monitoring of Intelligent Infrastructure - SHMII-3, November 13-16, on conference CD, 2007

Fibre Optic Methods for Structural Health Monitoring , Branko Glisic and Daniele Inaudi, Johh Wiley & Sons, Ltd, 2007