Cheshmeh-Khosh, Dalpari, and East Paydar Oil Fields are situated in the western part of Iran's Ilam province, near the Iran-Iraq border. The Development and Production Operations Service Contract (IPC) for these fields was signed between the National Iranian Oil Company (NIOC) and ZN Vostok Ltd in October 2018. The project aims to carry out Engineering Survey, develop Preliminary Front-End Engineering Design Documentation, and develop Front-End Engineering Design Documentation.
The primary components of this project include:
- Wellhead Facilities
- Well flow lines, manifolds, and gathering system
- Automated Group Metering Unit (AGMU)
- Separation Facilities
- Desalting unit
- Waste water treatment unit
- Water Intake
- Water injection pumps
- Oil storage facilities
- Reconstruction of drainage system
- Reconstruction of firefighting station
- Reconstruction of chemical analysis laboratory
- Power station 220/33 kV
- Power and Overhead lines

Contract Time Period: May 2021 to October 2024.

The National Iranian South Oil Company (NISOC) has decided to undertake an EPC project encompassing all petroleum production units, desalting plants, and gas compressor stations in the National Iranian South Oil Company (Ahwaz Oil Field). This project consists of the following: - Construction of three manifolds near Ahwaz Production Units No. 2, 3, and 5 (16 x 6", 25 x 6'', 10 x 6''). The incoming crude oil from Ahwaz reservoir wells will be directed to the existing header.
- Construction of wastewater treatment facilities inside Ahwaz Desalting Plant No. 3, including connecting piping and instrument installation on the existing coalescer and surge tank. Wastewater from the skimmer tank will be pumped by 8 new pumps to 4 new IGF packages. Subsequently, this water will be directed to three new nutshell filters. The disposal tank is pre-existing, but three new injection pumps will be installed alongside the existing pumps.
- Repair and installation of Ruston TB-4000 Turbine.
- Purchase and installation of Ruston TB-5000 Turbine.
- Modification, purchase, and installation of the following items:
   ◦ Purchase and installation of 16 air compressors (Each Capacity: 150 CFM) and 8 air dryers (Each Capacity: 300 CFM) in Ahwaz Production Units No. 1, 2, 3, and 4 (4 air compressors and 2 air dryers in each unit).
   ◦ Purchase of two diesel portable reciprocating injection pumps for use in the Desalting plants of Ahwaz 1 and 3.
   ◦ Purchase and installation of one wastewater injection pump for use in Ahwaz Desalting Unit No. 1. It will pressurize the wastewater (DP: 1750 PSI) to the well.
   ◦ Purchase and installation of two tube bundles for use in Ahwaz Production Unit No. 2.
   ◦ Control system optimization of wastewater injection pump in Ahwaz Desalting Unit No. 1.
   ◦ Control system optimization of 14 filtration systems in Production Units No. 1, 2, and 3.
   ◦ Purchase and installation of two pre-pressurizing pumps (DP: 57 PSI) to pump wastewater to injection pumps.
   ◦ Replacement of 10 filtration systems in Ahwaz Gas Compressor Stations No. 1, 3, 4, and 5.
   ◦ Branching out between Ahwaz 5 and Ahwaz 2.
- Office Building Facilities
- Purchase and installation of wellhead facilities for 30 wells.
- Purchase and installation of crude oil flow lines (25 flow lines).
- Construction of access roads for new wells.
- Purchase and installation of 3 ESP (Electric Submersible Pumps).
TRCE has been selected as the engineering consultant for AHW-235 oil field development. Contract Time Period: February 2021 to February 2023.

The Resalat Field, previously known as the Rakhsh Field, is situated in the Persian Gulf, approximately 80 km south of Lavan Island, in water depths ranging from 65 to 75 meters. The facilities, originally developed in 1968, have suffered damage due to the Iran/Iraq war and adverse climate conditions over the years.
To increase oil production capacity from this field, adding 12,000 stock barrels per day to the current production, the Iranian Offshore Oil Company (IOOC) has initiated a new project. This project encompasses engineering, drilling, procurement, and construction for the following items:
- Construction of a new satellite Wellhead Platform (WHP1) with a total of nine (9) conductor slots.
- Development and renovation of the existing offshore complex, including new power generation, control systems, HVAC, electrical/control rooms, electrical panels (LV & MV), process and utility piping, and all necessary activities required for connection to existing facilities (tie-in requirements).
- Construction of a new power plant to supply a 3.5 MW load to the RESALAT field. This load calculation includes electrical peak load plus a 20% design margin for any missed items. The power plant will be constructed on the existing SP platform.
- Removal and displacement of equipment and rooms as per the attached 3D model or plot plans. The contractor shall survey and estimate the quantity of the mentioned works. Major items for removal include existing emergency diesel generators, water tanks, the chief office, laundry facilities, and the existing R1 control room.
- Drilling of two new production wells in R1 and two wells in the WHP1 platform, along with re-entry and work-over of two existing wells in the R1 platform.
- Laying a 10” production submarine pipeline from WHP1 to PP and a single submarine cable (providing power and data) from SP to WHP1.
- Inspection, strengthening, modification, and repair of DP, PP, and SP jackets in the RESALAT field.
- Reinforcement, structural revamping, and strengthening of the topside platforms (DP, PP, and SP), including the replacement of boat landings and barge bumpers.
TRCE has been selected as the engineering consultant for the required modifications to the topside of the existing R1 platform complex, as mentioned in the second bullet point. This also includes the installation of a new sweetening unit to provide sweet gas as fuel for gas engine power generators.
Contract Time Period: October 2020 to January 2022.

Foroozan Oil Field is located 100 kilometers southeast of Kharg Island. According to the Iranian Offshore Oil Company (IOOC), the field has 53 wells and shares boundaries with Saudi Arabia's Marjan Field. The field comprises two existing main platforms named FX and FZ, one accommodation platform named FY (currently used as a jack-up rig as temporary living quarters at the FZ area), one flare platform adjacent to each production platform, two wellhead platforms named F15 and F16, which are connected by a bridge to the FX and FZ production platforms, respectively, and eleven (11) satellite wellhead platforms named F2, F8, F18 (new) (FX area) and F3, F9A, F9, F11, F12, F13, F14, F17 (FZ area). There are 20 infield pipelines, with 6 additional pipelines under installation by the company, as well as one crude oil and one gas export pipeline to Kharg Island. Renovation projects for this field have been tendered and awarded to various Iranian contractors. Among these, the consortium of PETROPARS-ISOICO (led by PETROPARS) has been awarded the development of part of the field. Within the consortium, the subsurface part will be developed by PETROPARS/POSCO (Petropars Oil Services Company), while ISOICO/MSG is responsible for the development of surface facilities. The scope of work includes the following topics:
A. New Offshore Platforms & Connecting Bridge
- To extract crude oil, one unmanned wellhead platform (F19) is planned to be installed about 7.8 km from the existing FX platform, equipped with minimal production facilities, including topside and a jacket.
- Due to limited space on the existing FX platform, a new entrance block named FX-A, including a jacket and a topside, will be installed adjacent to the FX platform to accommodate new equipment on its deck. FX-A platform will house all required equipment and facilities, including pig launchers/receivers, power generators, LV and MV switchgear rooms, transformers, control room, piping systems, and subsea cable connections. The existing LQ of FX will be relocated and installed on FX-A platform, considering all requirements.
- To integrate the system and connect FX-A platform to FX platform, one bridge with intermediate bridge support (if required) will be installed between the new FX-A platform and the existing FX platform. It will accommodate connecting piping, electrical and instrumentation cable systems, and walkways.
B. Modifications on Existing Platforms In addition to increasing field productivity, gas lift operations are planned. Therefore, some modifications, including extending the Gas Producer Manifold on F16, installing 5 Transferring Pumps at FX, KOD on FY, Gas Lift Piping Between F15, F18 & F19, Methanol Injection Package on FY (F16), Corrosion Inhibitor on FY (F16), F15, F2 & F8, Generating Electrical Power at FX-A, relocating the LQ and Control Room from FX to FX-A, Oily Water Treatment Package on FX, and the necessary utilities and facilities, are foreseen to be designed, procured, and installed.
C. SUBSEA PIPELINES
To transport fluids between the new F19 and the existing FX Platform, three subsea pipelines (12", 8", and 6") will be installed. Each pipeline will be connected to FX via FX-A and the connecting bridge. The 12" pipeline will transport crude oil from F19 to FX, the 8" pipeline will be used for testing, and the 6" pipeline will transport gas lift (GL) gas from F15 to F19 via FX and FX-A platforms.
D. SUBSEA CABLES
- To supply power to FX area platforms and enable communication between FX/FX-A and satellite platforms, subsea cables with 120% of the required power capacity, including fiber optics for communication, will be installed.
- As part of future planning, it is envisaged to supply electrical power for the FX area from the FZ-A platform. Accordingly, two additional J-Tubes shall be installed on the FX-A Jacket.
Contract Time Period: January 27, 2021, to July 30, 2023.

The National Iranian Oil Engineering and Construction Company (NIOEC) initiated the Esfahan Refinery Upgrading Project to address de-bottlenecking and upgrading needs at the Esfahan Refinery. The project's ultimate objectives are to reduce or minimize fuel oil production, increase gasoline production, and upgrade the refinery's products to meet international standards. This will be achieved through the installation of new units and the de-bottlenecking/revamping of existing units.
To achieve these objectives, the project has been divided into five separate sub-projects and contracts:
- Contract A: RHU, RFCC, and PRU units.
- Contract B: All upgrading and revamping work within the existing refinery area.
- Contract C: Interconnecting piping and networks, flare system, and utilities.
- Contract D: Diesel Hydrotreating Units, SRU, TGTU, Amin treating, sour water stripping, Gasoline Hydrotreating, and LPG Merox.
- Contract E: HPU and PSA units.

Contract C, awarded to Tehran Raymand Consulting Engineers, is primarily responsible for supplying and distributing the required utilities for the OSBL (Outside Battery Limits) process units, designing the flare system and gathering networks, and interconnecting process and utility piping. This involves the following engineering activities:
A. Basic and detailed process design of newly added units for which the basic design had not been performed by the original basic designer. This includes the new Nitrogen Generation Package (unit 81).
B. Endorsement, development, and detailed design, as well as Procurement Engineering Services, for utility units, including:
- Unit 35: Flare System
- Unit 41: Steam & Power Generation
- Unit 42: Water System
- Unit 43: Fuel System
- Unit 44: Plant & Instrument Air System
- Unit 45: Interconnecting & N2 Distribution
- Unit 46: Waste Water Treatment
- Unit 50: Tankage
- Unit 80: Nitrogen

C. Interface Management
D. Field Engineering Services

The Aban and West Paydar oilfields are located in the western part of Iran, near the Iran-Iraq border. The development and production operations service contract (IPC) for these oilfields was signed on March 14, 2018, between the National Iranian Oil Company (NIOC), ZN Vostok Ltd, and Dana Energy. The project's objectives include preparing a FEED Package, detailed design of earthworks and foundations, field supervision of earthworks and foundations, and supervision of detailed design.
The main units of this project include:
• Wellhead Facilities
• Automated Group Metering Unit (AGMU)
• Free Water Knockout Unit (FWKOU)
• Crude Transportation
• Cheshmeh-Khosh Central Processing Facility (CPF), which comprises:
- Bank D Separators
- Test Line Separator
- Crude Custody Transfer Metering Unit
- Chemical and Analytical Laboratory
- Shift Camp

The overall scope of the project involves establishing the necessary facilities to produce 71,500 barrels of oil per day (BOPD) from 17 production wells.
The produced oil will be exported to the Cheshmeh Khosh Facilities through a 213 km, 16-inch export pipeline.
Likewise, associated gas will be compressed and exported to the NGL-3100 plant via a 155 km, 16-inch export pipeline. Produced water will undergo treatment to meet the standard specifications and will be injected into an injection well.
The facilities of the Azar Oil Field include:
• Well Head Facilities
• 8-inch flow lines
• 3 Phase Separators (2 stages)
• Desalting Unit
• Stabilization unit
• Crude Oil Storage Tanks
• Crude Oil Pump Station
• Oil Export Pipeline
• Pig Traps
• Gas Dehydration Unit
• Gas Compressor Station
• Gas Export Pipeline
• Waste Water Storage Tank
• Waste Water Treatment Unit
• Waste Water Injection Pumps
• Waste Water Injection Pipeline
• Flare and Burn Pit Package
• Utilities

As part of the policy for early production from the Changuleh field, situated in the Zagros foreland basin along the Iran/Iraq border, the Petroleum Engineering and Development Company (PEDEC) has devised plans to establish a new production unit with a normal operating/design capacity of 15,000/16,500 barrels of oil per day (BOPD) from the Changuleh oil field.
During the early production stage, the crude oil will be transported to the Dehloran facility via an export pipeline.
The project's overall scope involves the establishment of minimal facilities and the development of existing facilities (separators) to facilitate the early production of heavy crude, aiming to achieve a daily production rate of 15,000 BOPD from two existing wells and four new wells. The produced oil will then be conveyed to the Dehloran Oil Facilities through a Pump Station and a 95 km export pipeline.
The facilities of the Changuleh Field include:
• Well Head Facilities
• 8-inch flow lines
• 3 Phase Separator
• Storage Tank
• Crude Oil Pump Station
• Export Pipeline
• Pig Traps
• Flare and Burn Pit Package
• Utilities

The Azar & Changoleh Oil Fields Development Project has been planned by the Petroleum Engineering and Development Company (PEDEC) to produce crude oil from these two fields, located near the international border with Iraq.
Changouleh Field:
The project's overall scope includes the establishment of minimum facilities and the development of existing facilities (separators) for early production of heavy crude, with the aim of achieving 15,000 barrels of oil per day (BOPD) from two existing and two new wells. The final production target is 75,000 BOPD. The produced oil will be transported to Dehloran Oil Facilities via a Pump Station and a 127 km, 20-inch export pipeline.
The facilities of Changouleh Field include:
• Well Head Facilities
• 8-inch flow lines
• 3 Phase Separator
• Storage Tank
• Crude Oil Pump Station
• Export Pipeline
• Pig Traps
• Flare and Burn Pit Package
• Utilities
Azar Field:
The project's overall scope involves establishing the necessary facilities for the production of 75,000 BOPD crude from 15 wells. The produced oil will be exported to the Sabzab station through a 270 km, 16-inch export pipeline. Similarly, associated gas will be compressed and exported to the NGL-3100 plant through a 130 km, 16-inch export pipeline. A small portion of the associated gas will be used in gas turbine drives. The facilities of Azar oil Field include:
• Well Head Facilities
• 8-inch flow lines
• 3 Phase Separators (2 stages)
• Desalting Unit
• Stabilization and Sweetening units
• Crude Oil Storage Tanks
• Crude Oil Pump Station
• Oil Export Pipeline
• Pig Traps
• Gas Dehydration Unit
• Gas Compressor Station
• Gas Export Pipeline
• Waste Water Storage Tank
• Waste Water Treatment Unit
• Waste Water Injection Pumps
• Waste Water Injection Pipeline
• Flare and Burn Pit Package
• Power Generation
• Utilities