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Mohsen Maddahi
Address: Bahonar, Shiraz, Iran
Cell: +989133453513,+989178256394
Email: mohsen.maddahi@yahoo.com
PROFESSIONAL PROFILE
COMMON
 Member of technical team in three parties meetings with client and end-user.
 Member of technical team on contracts process, providing service requisitions, contract strategy and tender strategy documents.
 Head section of production/process departments.
 Vendor technical assistant.
PROCESS – DOWNSTREAM - OIL & GAS TREATMENT FACILITIES
 Provide procedure for commissioning start up and operation of oil and gas facilities.(including the devices under licensors) and
supervision on operation with confirm analysis of product and find alternatives for solve Off spec. Products
 Start up Operation leader in Sirri NGL plant, workover operation leader in South Azadegan production field.
 Using HYSYS software in case of predict the function of plant
 Troubleshooting and analyzing process data at Upstream and Downstream oil and gas industries.
 Familiar with process design documentation such as PFDs, P&IDs, UFDs, UDDs, Design Basis and Operating of oil and gas
refinery units, etc
 Review vendor and construction drawings issue site engineering requests.
WELL PRODUCTION & INTERVENTION - UPSTREAM – GAS CONDENSATE AND HEAVY OIL RESERVOIR
 Design and supervision for ASPHALTINE problems. Well survey, downhole sampling and chemical injection.
 Operation design and supervision together with data analyzing and preparing final report for Well acidizing, chemical injection,
wellbore washing and perforation.
 Well Production monitoring, data analysis and plan for workovers including choke optimization, well-bore acidizing, N2 lifting,
wireline and/or tubing convey perforation, rig less operations, slickline/coiled-tubing and deliverability welltesting.
 Analyze multirate Welltest data by PROSPER
 Risk assessment, holding kickoff meeting and cooperation with other disciplines on project executions as production coordinator.
 Preparing and providing documents such as procedures based on FEED doc. data, official letters, minutes of meeting, etc. (in
English).
 Well Completion Designing for workover rig, Planning and Supervision.
10 YEARS And 6 Months Working Experiences based on Employer and Project:
1. Company:    CNPC International Ltd. (Iran), North Azadegan Project, Iran
2. Company:    CNPC International Ltd. (Iran), South Azadegan Project, Iran
3. Company:    Oil Industries Commissioning & Operation Company (OICO) Co. SIRI NGL Gas Recovery Plant ,SIRI Island, Iran,
4. Company:    Oil Industries Engineering & Construction Company (OIEC) Co. South Pars Gas Complex phases
9&10,Assaluyeh, Iran
5. Company:    ENI Iran B.V. Co. South PARS Gas Complex phases 4&5 , Assaluyeh, Iran

Mohsen Maddahi • +989133453513• Mohsen.maddahi@yahoo.com
Petroleum engineer‐Senior Process engineer
AIT university

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1) Company: CNPC International Ltd. (Iran),
North Azadegan Project, Iran
Jan 2015 – present
Position(s):
Production Coordinator
Achievements:
Downstream Field:
 Supervision on construction and issue SER forms for construction revisions
 Involving with Commissioning & Start up and Plant Performance Test
 Production Management.
Preparing department flow
Preparing required production services and handling the contracts process for finding qualified contractors
Upstream Field:
 Acidizing and Welltesting supervisions
 Daily well site inspection and data monitoring
2) Company: CNPC International Ltd. (Iran),
South Azadegan Project, Iran
June 2012 – Jan 2015
Position(s):
“Well operation and Testing Superintendent” since June 2012.
Promoted to “Production Department Coordinator” since March 2013.
Achievements:
Downstream Field:
 Flow orifice design (borehole, thickness and calculations for Bernouli equation) and implement an accurate metering system.
 Surface facilities Management. Includes Issuing Operational Manual and supervising on surface facilities.
Upstream Field:
 Execute rig-less operations (Slick line and Coiled tubing) for Acidizing, Nitrogen lifting, Diesel lifting, perforation and etc.
 Execute work over rig operations. Planning and Implementation of Well tests after the workover rig.
Responsibilities:
 Supervise operations to kill the well by bull heading. Perform Well injectivity test
 Well acidizing, chemical injection, wellbore washing and perforation design and supervision
 Daily production monitoring, optimization and candidate well selection for treatment
 Production data analysis, forecasts, well test design and interpretation
 Well performance analysis, well completion evaluation and modification
 Troubleshooting planning, and preparation and supervision of workover programs

AIT university

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 Preparation and supervision of rig less (slickline and coiled tubing) well intervention operations
 Preparation of contracts (technical documents, contract strategy, evaluation, tendering, etc.)
3) Company: Oil Industries Commissioning & Operation Company (OICO) Co.
SIRI NGL Gas Recovery Plant ,SIRI Island, Iran,
June 2010 – June 2012
Position(s):
Process supervisor
Vendor technical assistant
Achievements:
 Pre-commissioning, Commissioning and NGL plant startup including: commissioning and startup of Feed gas Compressors,
Gas turbine Generators.
 Commissioning and operation of Distribution Control System (DCS)
 Troubleshooting of process design issues and implement the alternatives.
Responsibilities:
 Engineering concerns of plant design for modifying designs and solve operation problems.
 Preparing Operational Test Procedures (OTP) and implementation
 Following electrical team of Technical office during re-commissioning and commissioning tasks of electrical issues.
 Pre-commissioning and commissioning tasks of Instrument issues.
 Pre-commissioning and commissioning tasks of Mechanical issues
 startup of complicated (unman control system) and huge Mechanical system of the Compressors (centrifugal types and
reciprocating types) and cooperating with specialist of the vendor representatives.
 Startup of Screw types compressors of air and nitrogen.
4) Company: Oil Industries Engineering & Construction Company (OIEC) Co.
South Pars Gas Complex phases 9&10 , Assaluyeh, Iran
October 2008 – May 2010
Position(s): Process supervisor in Engineering Division of pre-commissioning, commissioning and start up department, operation and
handover team.
Achievements:
 Pre-commissioning, Commissioning and startup including: LPG fractionation and treatment units
 Filling the C3 and C4 storage units and export the products.
 Troubleshooting of refrigerant compressor functional logic programs, plant design issues and implement the alternatives for
operation.
Responsibilities:

AIT university

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 To prepare procedures and supervising on Pre-commissioning and commissioning Leak tests and indicate separated
packages on marked up P&IDs in Propane and Butane Treatment & Drying Units
 To prepare procedures and supervising on pipelines flushing operations and indicate separated packages on marked up
P&IDs in Propane and Butane Treatment & Drying Units
 To prepare procedure and supervising on loading and filling chemicals(reactors and filter vessels) according to vendor
documents
 Prepare and performing Operational Test Procedures (OTP)
 Preparing Startup operation document using previous experiences, FEED and vendor documents.
 Prepare documents for Amine filtration package in unit 116 (Sequence test, Precoat test and start up) and supervision on the
performed actions. (60 step Automatic sequence for three filtration packages in absence of “Amma Filter Group” as its
vendor).
 Prepare documents for startup of Propane and Butane cryogenic storages (Dry out , Cooling, LPG flare system)
 Preparing documents as startup procedure for Ethane Regeneration Gas Compressor 116-K-101 A/B
 Preparing documents as startup procedure for Refrigeration Compressor 147-K-101 A/B, and finding optimum operating point
through performance curves.
 Cooperation for performance test and prepare the handover documents for plant performance test.
5) Company: ENI Iran B.V. Co.
South PARS Gas Complex phases 4&5 , Assaluyeh, Iran
October 2006 – June 2008
Petroleum Engineer in Engineering Division of Operation & Production Department
Achievements:
 Commissioning and startup, performance test and handover.
 Products: 50 MMSCF/D Sweet Gas (C1), 2000 Metric ton treated liquid Propane per day, 2000 Metric ton treated liquid
Butane per day and 40000 Bbl. Condensate per day.
Responsibilities:
 Operation supervision in field and Central control Room (CCR)
 Retrieving the process history in case of shut down event at any level (total plant shutdown, unit or equipment shutdown) for
finding and solving the causes of shutdown.
 Offer advices for changing type of Dryer beds in Dehydration units that finally was ended to prepare a new process line for
regeneration gas outlet to regenerate Dryer beds.
 Solving Hydrate Formation problem in Letdown station in Reception Units by simulate Hydrate formation temperature at
desired pressure.
 Offer advices and prepare required documents for Cold box cleaning during annual shut down.
 Plant routine check by preparing data sheets for the plant especially following units:
 reception facilities, Gas sweetening, dehydration units, LPG Fractionation and treatment, export & storages units, propane
refrigeration cycle units, Boilers, GTG’s and also compressors in export gas unit.
 Monitoring the specification of all plant products (condensate, LPG, Sulfur, Ethane, Sales Gas)

AIT university

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EDUCATION
2000–2005 Petroleum University of Technology, Ahvaz, Iran
B.Sc.inPetroleumEngineering–ReservoirEngineering
B.Sc. Project: Laboratory Resistivity Measurement for Detection of Petrophysical Parameters of Reservoir Formation
SKILLS
FOREIGN LANGUAGE
 Excellent in comprehension good in speaking and writing English.
Technical
 PROSPER
 PVT sim
 HYSYS (Steady State simulation)
 PIPESIM
Common
 Fully Experienced with Microsoft Office
LIST OF CERTIFICATES
 Perfect employee as “offshore /onshore Process engineer” for ENI Co.
 Appreciation letter for teaching junior engineers in “Process engineers training Course” for OICO Co.
 Perfect employee as “Well operation and testing superintendent” for CNPCI Production Department
 Perfect employee as “Petroleum engineer” for CNPCI Production Department
 One year Excellent staff certificate for Azadegan project Oil Field from CNPCI
REFERENCES
References and Certificates are available upon request.
Attachments:
certificates

AIT university

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Attachment 1/5
 Perfect employee as “offshore /onshore Process engineer” for ENI Co.

AIT university

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Attachment 2/5
 Appreciation letter for teaching junior engineers in “Process engineers training Course” for OICO Co.

AIT university

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Attachment 3/5
 One year Excellent staff certificate for Azadegan project Oil Field from CNPCI - current page

Mohsen Maddahi • +989133453513•
Mohsen.maddahi@yahoo.com
Petroleum engineer
AIT university

Page: 9

Attachment 4/5:
 Perfect employee as “Well operation and testing superintendent” for CNPCI Production Department

Mohsen Maddahi • +989133453513•
Mohsen.maddahi@yahoo.com
Petroleum engineer
AIT university

Page:10

Attachment 5/5:
 Perfect employee as “Petroleum engineer” for CNPCI Production Department

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