trans adriatc pipeline pre-commissioning project

Trans Adriatc Pipeline Pre-Commissioning Project

Speaker: Luigi EusebiPre-commissioning Project Manager

IPLOCA webinar, 11th February 2021

welcome

IPLOCA webinar, 11th February 2021

agenda

1) overview

2) project brief description

3) work description

4) main constraints

5) Q&A and closure

overview

IPLOCA webinar, 11th February 2021

who we are Trans Adriatic PipelinePre-Commissioning Project

Techfem is an independent engineering and construction services firm.

The strong attitude to problem solving made us highly experienced in managing complex engineering issues.

The technological innovation allows us to operate in several areas of energy and oil & gasfield: upstream, midstream and downstream.

who we are Trans Adriatic PipelinePre-Commissioning Project

Founded by Francesco Ferrini

Transition into a limited liability company Techfem srl

Incorporation of SicurGas srl

Incorporation of TechfemSud srl

Techfem Group offering design, construction supervision and pre-commissioning for transport, handling and storage of fluids and multiphase mixtures.

Companies of Techfem Group merged into Techfem S.p.A.

Federico Ferrini becomes head of Techfem

1984

1987

1994

2005

2006

2013

2021

wherewe areheadquarter

Our headquarter is located in Fano (Pesaro-Urbino) in Marche region.

offices

Lamezia Terme (CZ)

wherewe are

We have a branch office in Calabria, southern Italy.

offices

S. Donato Milanese

Rome

Albania

Serbia

Mozambique

… and other offices in strategic locations.

wherewe are

businessunits

Design & Consultancy

Site Works Management & Supervision

Pre-commissioning

Resarch & Development

businessunits

project brief description

IPLOCA webinar, 11th February 2021

what isTAP?

Trans Adriatic Pipeline, also known as TAP, is a gaspipeline transmission system with a length of approx.900 km, connecting the Greek-Turkish border and Italyacross Greece and Albania, allowing the transportation ofnatural gas from the Caspian sea.

what is TAP? Trans Adriatic PipelinePre-Commissioning Project

The infrastructure features a 36” diameterpipeline in the offshore and Italian sections and a 48” diameter in the onshore sections in Greeceand Albania.

work description

IPLOCA webinar, 11th February 2021

Techfemscope of

work

Techfem team executed the pre-commissioningoperations of the 105 km offshore pipeline link from Albania to Italy, with a maximum depth pf 810 m.

pre-commphases & numbers

Assistance during laying

Flooding

Cleaning & Gauging

Hydrotesting

Dewatering

Drying

145 days of assistance during pipe laying

6 days of continuous operation130.000 m³ of UV treated seawater injectedwater flowrate of 1.073 m³/h

max expected pressure 27 barg6 Bi-Di pigs equipped with pig tracking

Pressurisation at 2.100 l/min @ 200 barg48 hours of hold period

9 days of continuous operation8 Bi-Di pigs equipped with pig tracking 35.000 Sm³/h of technically oil free dry compressed air @ 120 barg

8 days of continuous operation30.000 Sm³/h of technically oil free dry compressed airair dew point -40°C @ atm pressure

main worksite in Italy, about 25.000m²

55.000 worked manhours without injuries

main worksite Trans Adriatic PipelinePre-Commissioning Project

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receiving worksite in Albania, about 12.500m²

6.000 m³ of settling ponds

hydrotest water treatement before discharge into seabody

receiving worksite Trans Adriatic PipelinePre-Commissioning Project

data acquisition

system

receivingspread

water spread

air spread

mainoverview

DAS system

main constraints

IPLOCA webinar, 11th February 2021

noise

receptors at distance lower than 100m

impossibility to request the noise derogation due to the social impact

Impossibility to use large footprint noise barriers supports and to perform holes on the ground

limitations

noise

simulations by using the specific SoundPlan software

reduction of booster compressors noise emission from 125 dB up to 110 dB

mitigation with 700 linear meters of environmentalfriendly noise barriers with height 4 meters tailored for the Project, designed, certified and built by Techfem

innovative temporary flat supports, avoiding footprint waste

solutions

air pollutionprevention

use of new generation engines Stage IV and Stage V to mitigate pollution (diesel consumption of approx. 80.000 litres per day during dewatering)

exhausts vent stack at 4 meters above soil

detailed simulations with CALPUFF View software

dust suppression in dry and windy days

compresseddry air

temperaturelimitations

maximum allowablecompressed dry air temperature into the pipeline: 50°C

operations in Southern Italy in hot months (ambient air temperature up to 35°C)

noise barriers walls 4 meters height

Air at high pressure -> high temperature

compresseddry air

temperaturesolutions

simulations by using the OpenFoam software

conveying of diesel enginecooling air maximumallowable compressed dry air upward above noise barriers

extra air coolers installed atbooster compressorsdischarge line

continuous monitoring and recording of air temperature temperature injected into the pipeline

air temperature injectedresulted always below 45°C

soil pollutionprevention

4.700 m² of impermeabilised areas

11 lifting pumps and 500mof network to collect rainwater

200m³ of available volume to collect rainwater during rainfalls

system desgned on last 40-years rainfalls capable to manage approx 3.000 m³ of potantially polluted rainwater estimeed to be colleted and disposed according to Italian law

20 spill kits

hydrotestingwater quality

monitoring

Injection point (Italian side)• UV treated seawater• filtration @ 50 micron• hourly monitoring of

injected seawater• field water analysis

laboratory

Discharge point (Albanian side)• preliminary settling• filtration @ 50 micron

before discharge in seabody• hourly monitoring of

discharged seawater• dirty and coloured water

between pigs collected in ponds for long sedimentation processbefore filtration and discharge into seabody

thanks for your attentionQ&A and closure

Techfem

Techfem SpA

www.techfem.it

IPLOCA webinar, 11th February 2021