bathymetry survey procedure rev 3 approval

BATHYMETRY SURVEY PROCEDURE 6769-22-TNF-PWK-3-006-P REV.1 REPAIR OF EXPOSED 30" PIPELINE AT RCB-

TNF 565 & 563 CONTRACT No. 4600009769

PAGE 1 of 37 Status : A

REVISION LIST

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TNF 565 & 563 CONTRACT No. 4600009769


CONTENTS

1. PURPOSE ............................................................................................ 3

2. SCOPE ................................................................................................. 3

3. NOTE AND ABBREVIATIONS ................................................................. 3

4. REFERENCES ........................................................................................ 4

5. SAFETY ................................................................................................ 4 5.1. GENERAL ........................................................................................ 4 5.2. RISK ASSESSMENT ............................................................................. 4 5.3. EMERGENCY EVACUATION PROCEDURE.................................................... 5 5.4. WORK PERMITS ................................................................................ 5

6. RESOURCES ......................................................................................... 5 6.1. LIST OF PERSONNEL, EQUIPMENT AND MARINE SPREAD MOBILIZED ................ 5 6.2. MARINE SPREAD ............................................................................... 6 6.3. EQUIPMENT / TOOLS ......................................................................... 6

7. BATHYMETRIC AND TOPO SURVEY SEQUENCE ..................................... 6 7.1. STAGE PREPARATION .......................................................................... 7 7.2. STAGE DATA COLLECTION ................................................................... 12 7.3. STAGE DATA PROCESSING ................................................................... 15 7.4. STAGE FINAL REPORT ........................................................................ 15

8. ATTACHMENT .................................................................................... 16


TNF 565 & 563 CONTRACT No. 4600009769


1. PURPOSE

The survey service was required to determine the topography of the river around the work

site. These maps are used to determine the condition and around existing pipeline

between protection pile the river at the location of jobs. The survey was conducted by

means of echo sounder equipped with RTK-DGPS positioning system.

2. SCOPE

The scope of work of this procedure is covering the bathymetric and topo survey to obtain

topo and seabed profile in working area.

This location need to be surveyed to have details of water depth information and river

contour depth. The work shall be carried out utilizing echo sounder, RTK DGPS

positioning system and Total Station.

The objectives of this survey are as follows:

To identify and to mapping river contour depth around pipeline and existing protection

pile area

To map river contour depth at the survey area in a scale of 1:1000 at the survey area

of 100m x100m before the installation sheet pile and protection pile.

3. NOTE AND ABBREVIATIONS

The following notes and abbreviations apply in this report and attached drawings :

Words in UPPER CASE indicate specific meaning as defined below.

COMPANY TOTAL E&P INDONESIE

CONTRACTOR PT ONASIS Indonesia

RCB River Crossing and River Banks

HSE Health, Safety, Environment

WORK The scope of work as describe in the CONTRACT

ERP Emergency Responses Plane

RTK Real Time Kinematic

DGPS Differential Global Positioning System

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TNF 565 & 563 CONTRACT No. 4600009769


4. REFERENCES

1. 9769-22-TNF-PWK-3-001-P : Procedure for Writing Document

2. 9769-22-TNF-PWK-3-002-P : Control of Quality Record Procedure

3. 9769-22-TNF-PWK-3-003-P : Planning & Scheduling Control Procedure

4. 9769-22-TNF-PWK-3-004-P : Project Execution Plan

5. 9769-22-TNF-PWK-3-005-P : Design Control Procedure

6. 9769-28-TNF-PWK-3-001-P : Job Risk Assessment

7. 9769-28-TNF-PWK-3-002-P : Emergency Responses Plan

8. 9769-28-TNF-PWK-3-003-P : HSE Procedure

9. 9769-28-TNF-PWK-3-004-P : Non-Conformance, Accident/Incident, Reporting and

Investigation Procedure

10. 9769-22-TNF-PWK-3-008-P : Mechanical Work Method Statement

11. 9769-22-TNF-PWK-3-007-P : Civil Work Method Statement

12. 9769-22-TNF-PWK-3-015-P : Procecedure Control of Nonconformance Product

13. GS-GEO 201 : Offshore Geopysycal Survey

14. GS-GEO 301 : Offshore Surfrace Positioning

15. GS-GEO 304 : RTK Operations

5. SAFETY

As a principal in the survey activity, CONTRACTOR will be conducting a safety induction

for all personal coming on board for this activity. The CONTRACTOR’s HSE Coordinator

and his representative will perform briefing to everyone involved to introduce the important

of safe practices and create the awareness that they are indeed working within an existing

live pipeline at their working area.

5.1. General To minimize the risk of accidents during the work, safety precautions and risk

assessment has been prepared as guidelines for all personal involved. Safety

inductions shall be organized upon mobilization of all personnel on site. The Risk

Assessment shall be clearly explained and existing facilities.

5.2. Risk Assessment

A specific risk assessment is refer to Job Risk Assessment to this procedure and will

discussed, reviewed and approved by Company as necessary to request the permit to

work.

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TNF 565 & 563 CONTRACT No. 4600009769


5.3. Emergency Evacuation Procedure

The CONTRACTOR ERP is the approved document: 9769-28-TNF-PWK-3-002-P

Emergency Responses Plan.

5.4. Work Permits

No works can be carried out without any valid work permits. The works shall not be

started before the work permit is opened. CONTRACTOR will prepare the work

permits in accordance to Company Work Permit procedure. All work permits shall

comply with COMPANY Work Permit Regulation.

Work Permits shall describe all the activities to be carried out, complete with require

documents such as drawings of work locations, Risk Assessment, etc. Before issuing

of work Permit to COMPANY, the Work Permit has to be discussed with safety officer

and safety man who are in charge during the work execution. The purpose of this

discussion is to allow the safety man to prepare all necessary safety preventive action

for the works. Before opening the Work Permit, Contractor / Company shall check that

all procedurals required have been received.

6. RESOURCES 6.1. List of Personnel, Equipment and Marine Spread Mobilized

TITLE QUANTITY

Party Chief Survey 1

Supervisor 1

PC / Hydrographic Surveyor 1

Survey Engineer 1

Data Processor 1

Tide Gauge Observer / GPS Ref Sta. 1

Helpers (Local Laborer) 1

Safetyman 1

Medic 1

Sea Truck crew 2

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TNF 565 & 563 CONTRACT No. 4600009769


6.2. Marine Spread

MARINE SPREAD QUANTITY

Sea Truck 1 unit

6.3. Equipment / Tools

EQUIPMENTS / TOOLS MODEL TYPE Accuracy QUANTITY

RTK DGPS Trimble 5700 Cm 1+1

PC n/a 1

Software Trimble HYDRO Pro 2.4 n/a 1

Heading fluxgate compass

SAILCOMP KVH

Azimuth1000

1

Single Beam Echo sounder Odom MKII Dual

Frequencies dm 1

Echo Sounder Bar Check Plate - - n/a 1

Tide Gauge / Tide Pole - Sokkia cm 1 Heave compensator SMC IMU-008-30 cm 1 Total Station Sokkia CX105 cm 1

7. BATHYMETRIC AND TOPO SURVEY SEQUENCE

In general, the implementation of the survey can be divided in for stage :

1. Preparation

2. Data Collection

3. Data Processing

4. Final Report

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TNF 565 & 563 CONTRACT No. 4600009769


7.1. Preparation

a. Work Map / Map Distribution Benchmark ( BM )

Benchmark will be used are BM RC-52 and BM LT-02 (see attachment 8.1)

Incase of BM is not avaible any more contractor will establish new BM generate

from BM LT-02.

b. Data Preparation

Survey Line

The area to be surveyed is within a grid area of 100m x 100m location of the

sheet pile and protection pile area that installed. The Bathymetric survey and will

be carried out along the following designed survey lines. The main lines will be

run across the river and along around pipeline area with an interval of 2m and

the cross lines will be run perpendicular to the main line with an interval of 15m.

Navigation & echo sounder data will be logged continuously and fixes will be run

every 5m. The bathymetric survey will be run in one pass.

Topographic survey line will be run overlap 10m with bathymetric survey and

ensured all working area for sheet pile has inside survey area.


TNF 565 & 563 CONTRACT No. 4600009769


List line bathymetry and topo survey at TNF 565 & 563.

No Description Direction Length Interval No of Line

Total Length

1 Main Lines

Bathy Across the

river 100m 2m 50 5000m

2 Cross Lines Along the river 100m 15m 6 600m

3 Main Lines

Topo Across the

river 20m 2m 50 1000m

Bathymetric and topo Line at RCB-TNF 565

1

Topo line overlap with line bathymetric

100mtr length


TNF 565 & 563 CONTRACT No. 4600009769


No Description Direction Length Interval No of Line

Total Length

1 Main Lines

Bathy Across the

river 150m 2m 50 75000m

2 Cross Lines Along the river 150m 15m 7 1050m

3 Main Lines

Topo Across the

river 30m 2m 50 3000m

Bathymetric and topo Line at RCB-TNF 563

150mtr length

Topo line overlap line bathymetric


TNF 565 & 563 CONTRACT No. 4600009769


Survey Parameters

All position and navigation control for the project will be based on the

following grid projection, spheroid and geodetic parameters:

Geodetic Parameters Datum P.2EXC_T9 (SAMBOJA) Spheroid BESSEL 1841 Semi-Major Axis (a) 6377397.15500000m Semi-Minor Axis (b) 6356078.962899996 Inverse Flattening (1/f) 299.1528139448

Projection Parameters Grid projection Universal Transverse Mercator

(UTM) Central Meridian (CM) 117° E (Zone 50S) Origin of Latitude 0.00° N Hemisphere South False Easting 500 000 m False Northing 10000000.0 m Scale Factor on CM 0.9996 Units Meters Geoid Model EGM ‘08

Datum Shift Parameters from WGS 84 to Bessel 1841 dX = plus 404.78 m dY = minus 685.68 m dZ = minus 45.47 m

Note: One of the nearest Benchmark of TOTAL E&P INDONESIE near to the survey location will be utilized as a reference station if RTK DGPS will be used as a positioning system. The coordinates will be verified and approved by Client Representative prior to the commencement of work.

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TNF 565 & 563 CONTRACT No. 4600009769


Equipment Preparation

The preparation to be carried out is:

Hardware installation for the RTK GPS Base unit at the Nearest Control

Point (Approved by Company)

Hardware installation onboard the survey vessel include some or all of

the following :

Installation of a data acquisition computer and software

Installation of navigation & echo sounder data acquisition computer

Installation and interfacing of a RTK DGPS Rover receiver on the

vessel

Installation and interfacing of a heading sensor on the vessel

Installation of transducer and cables

Installation and interfacing of a single beam echo sounder

Measure all offsets, including antenna offsets, etc., to an agreed

datum point on the vessel. The vessel overall dimensions will be

entered into the navigation computer and related to the same

datum point.

Complete Hazard Identification and Risk Assessment

Hold pre-job meeting, safety induction and briefing

Calibration and Equipment Tests

Prior to the commencement of work, checks and calibrations will be

performed and consist with the following :

Echo sounder sensor calibration using bar check plate for verify

and calibrate depth every 1metre

Tuning, adjusting and wet test of all analogue systems

RTK DGPS and Navigation system verifications at the known point

reference approved by company

Compass heading verify checks

Assessment of the functioning of the on-line navigation computer

and echo sounder data logging system

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TNF 565 & 563 CONTRACT No. 4600009769


RTK DGPS Verification

The RTK DGPS system onboard the vessel was verified according to the

Surveys standard operating procedure. Known Point will be used for

verification purpose shall be approved by TEPI.

Heading sensor correction and alignment verification

The misalignment of the heading sensors onboard the vessel was

corrected and verified according to the surveys standard operating

procedure.

All calibrations, checks and system verifications shall be carried out in

accordance to manufacturer’s specifications and requirements.

7.2. Data Collection

All surveys will be undertaken from the survey vessel assigned.

The RTK DGPS positioning will be checked or verified at the known point at the

mobilization port or on location.

All navigation will be achieved and logged using a Hydro Pro 2.4 survey navigation

package. Required survey lines will be input to this system and displayed for the.

Data acquisition, Geodetic Parameters, and other input to the system will be

checked at mobilization individually by both the Party Chief and the surveyors.

Bathymetric survey data will be carried out using a single beam Odom MKII Echo

Sounder dual frequency. The transducers will be mounted on an over-the-side pole.

Soundings output data will be recorded on the Hydro Pro 2.4 Navigation system.

During the running line and recording data acquisition phases and if the weather and

survey area conditions permitted, the following systems are run in simultaneous

(single pass) mode over the proposed survey lines as specified above.


TNF 565 & 563 CONTRACT No. 4600009769


Single Beam Echo sounder dual frequency

The echo sounder data will be logged in digital formats with Hydro Pro 2.4

navigation. Details of the data acquisition will be recorded in the navigation line log.

Fixes will be taken every 5m interval.

Echo sounder digital data will be recorded in the TXT format and annotated with

position, headings, depth and fix marks.

The accuracy of the sounding position will be of the order of under 0.2m within the

designated areas.

Figure 2: Transducer bracket with side mounted

The survey will be carried out along the designed survey lines centered at the sheet

pile and protection pile location to mapping the seabed of area.

Bathymetric data acquisition will be reduced to the Chart Datum based on the tide

gauge / tide Pole readings provided during survey. The tide gauge height will be tied

to the nearest vertical Reference point to be able to compute the Chart Datum.

BM for vertical elevation reference using company to compute the height of the tide

gauge relatively to the nearest reference point at location survey.

The reference point to be used will be verified or validated by the company prior to

the commencement of work.

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TNF 565 & 563 CONTRACT No. 4600009769


Positioning and Navigation System

Positioning and navigation were provided by the RTK DGPS system. The RTK

DGPS positioning will be checked or verified at the known prior to the mobilization.

The vessel will be run with a ‘run-in’ approach distance as far as possible, prior to

the start of main line, to get the vessel on track.

All navigation were achieved and logged using a Hydro Pro 2.4 survey navigation

package. Required survey lines were entered to this system Survey data, Geodetic

Parameters, and other input to the system were checked at mobilization individually

by both the Party Chief and the surveyors.

Speed was limited to 3 knots or lowest for running line

Echo sounder data output

Bathymetric data was carried out using a single beam Odom MKII Echo Sounder

dual frequency. The transducer was mounted on an over-the-side pole.

Soundings were recorded on the Hydro Pro 2.4 Navigation system. Fixing were sent

to the echo sounder at the interval of 5mtr, the depth and position recorded by

hydroPro 2.4 software every second.

Bar check was used to verify,calibrate echo sounder data.

Tide corrections

All depths were reduced to reading tide pole water surface.

Sample of mark 3M on site provided by company and setup 3M tide pole reading

1

3mtr pole reading setup


TNF 565 & 563 CONTRACT No. 4600009769


7.3. Data Processing

All final data processing will used software: Hydro Pro 2.4, AutoCAD, Terramodel.

Final product of bathymetric survey results in ACAD drawing files will be provided.

The processing tools will also provide on the survey vessel for preliminary

interpretation and site assessment. The preliminary report with the river contour

depth, after survey will be provided in field if required.

7.4. Final Report The final report will consist with the following:

1. Scope of work & Project Configuration

2. Geodetic Parameters

3. Horizontal & Vertical Control

4. Mobilization/demobilization

5. Tests, Calibration, Settings, List of Equipment and Personnel

6. Survey Operations

7. Data survey recording & Processing Methods

8. Survey Logs, Diagrams, Station Descriptions, Offsets, etc.

9. Survey Results, including :

• Bathymetric charts,

• General site features,

• River contour depth at survey location before sheet pile and protection pile

installation

10. Summary & Recommendations.

Final report will be consisted with the following charts :

Bathymetric and topo with 2m interval

Seabed features identification determine the condition around existing pipeline

between protection pile and river contour depth at the location of jobs

Long section of bathymetric survey.

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TNF 565 & 563 CONTRACT No. 4600009769


8. ATTACHMENT

Bench mark (by company)

Equipment

Personnel CV


TNF 565 & 563 CONTRACT No. 4600009769


8.1. Bench Mark


TNF 565 & 563 CONTRACT No. 4600009769



TNF 565 & 563 CONTRACT No. 4600009769


8.2. Equipment


TNF 565 & 563 CONTRACT No. 4600009769



TNF 565 & 563 CONTRACT No. 4600009769


8.3. Personnel and CV


TNF 565 & 563 CONTRACT No. 4600009769



TNF 565 & 563 CONTRACT No. 4600009769


DAFTAR RIWAYAT HIDUP Data Pribadi Nama : Ottovianus Jenis Kelamin : Laki – Laki Tempat, Tanggal Lahir : Pangala’,31 oktober 1988,Toraja Kewarganegaraan : Indonesia Status Perkawinan : Belum Menikah Tinggi, Berat Badan : 164 cm, 68 kg Kesehatan : Sangat Baik Agama : Kristen Protestan Alamat Lengkap : Jl.A.Yani Gang Nusa Indah (Handil, Kalimantan Timur) Nomor HP : 082152133018 E-mail : [email protected] Pendidikan Formal : 1996 – 2002 : SD 12 Impres Pangala’ Toraja 2002 – 2004 : SMP 1 Rindinggallo, Toraja 2004 – 2007 : SMK 1 Tagari Rantepao, Toraja Non Formal 2007 – 2008 : BLKI (Balai Latihan Kerja Industri) Makassar (Gambar Rencana) 2008 – 2009 : ALIAH (Autocad 2 Dimensi/ 3 Dimensi) 2009 – 2010 : Training Sea Survival / Training Lifting Operation and Rigging Pengalaman Kerja 2010 – 2012 : PT.Meindo Elang Indah, Project RCB Jabatan (Credding Machine Operator) 2012 – 2014 : PT.Meindo Elang Indah, Project Pipeline 14” Replacement (23KM)

mailto:[email protected]


TNF 565 & 563 CONTRACT No. 4600009769


Jabatan Terakhir, Asistance Surveyor 2014 : PT Navigator Nusantara, Asistance Surveyor di PT Supraco project

RCB III Total PT Geodata Pratama , Golder , asistance surveyor project borhole postioning at senipah process

Uraian Singkat Pekerjaan:

Centring dengan tripod Stake out Situasi dengan total station Sokkia CX105, FX103 Leveling Anchor job Monitoring laying pipe 14” dari crane barge Operator Echosounder Echotrac MKII


TNF 565 & 563 CONTRACT No. 4600009769


bathymetry survey procedure rev 3 approval

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