• HIOGAS is an international company with offices worldwide. Our main operations are managed by our offices in Sana’a, Yemen and in Hyderabad, India.
  • As part of the ALHAJ Group, HIOGAS has established itself as a Major international company in the oil and gas industry, with extensive experience in oilfield services and Project management in remote locations and challenging environments.

Activities & Scope of Work

HIOGAS provides the following services: Drilling and completion fluid services: Environmental services:
  • Oil and Gas Exploration and Development
  • Oilfield Services:
  • Drilling and work over fluid services
  • Environmental services
  • Well testing and early production facilities
  • Energy Trading
  • Engineering, Design and Construction Services
  • Technical Manpower Services
  • Security Services for Oil and Gas Assets
  • Reservoir studies
  • Field studies
  • Field development plans
  • Work programs and operations management
  • Financing and finance planning
  • Completion fluid filtration
  • Fluid management and transport
  • Mud and brine rental
  • Mud and brine plant for safe storage of OBM, WBM and brine
  • Reconditioning of drilling and completion fluids
  • Fluid analysis
  • Filtration of produced H2O
  • Vessel and production tank cleaning
  • Feasibility studies
  • Site assessment
  • Oil waste management and disposal facilities
  • Soil remediation
  • Well testing and early production facilities:
  • Production testing
  • Well clean-up
  • Extended well testing
  • Data acquisition and interpretation
  • Fluid sampling and analysis
  • Early production facilities: Fit for purpose set-up
Build-operate-transfer Operations and maintenance
Flexible commercial models Cased hole logging services:
Open hole logging services: Perforation services:
  • Gamma ray / CCL
  • Radial cement bond tools (RBT)
  • Multifinger imaging tool (MIT) and magnetic thickness tool (MTT)
  • Pulse neutron neutron (PNN) tool
  • Production logging tool (PLT)
  • Free point indicator
  • Resistivity
  • Porosity
  • Density
  • Caliper
  • Dip logging
  • Size from 1 9/16” to 7” guns
  • TCP
  • Electric line casing guns
  • Through tubing perforation
  • Tubing cutters
  • String shot – back off
  • Protect firing system
Engineering, Design and Construction Services
  HIGLOBAL is one of the fastest growing construction companies in Yemen. Since 1995 the company has catered Specifically to the growing demand for quality project implementation and services in the oil and gas industry by a branch named as HIOGAS. HIGLOBAL has emerged as a successful contractor in the field of electrical, instrumentation Control, Telecommunication, process engineering, civil construction and electro-mechanical installations, Oil & Gas Services, from FEED to commissioning and start-up. The client base includes recognized oil and gas companies. HIOGAS has partnered with major engineering companies such as YLNG on design and engineering projects. HIOGAS Also worked with Total e&p on the design and supply of fully assembled and site wells service. Projects include Desalters, dehydrators and various oil, gas and water separation processes, all with leading suppliers focused on Bringing the best products, technology and service to Yemen. HIOGAS is now proud to be a full Oil & Gas service Engineering, Procurement and Construction Management (EPCM) Company, providing quality project management, process design, engineering, procurement and construction Management expertise to the oil and gas sector
Our expertise includes: Our projects include:
  • Process Engineering
  • Project Controls
  • Mechanical Engineering
  • Rotating Equipment
  • .pipe welding
  • .hydro testing
  • .PWHT-push weld
  • .X-ray
  • Pressure Vessels
  • Heat Transfer
  • Electrical Engineering Instrumentation/Controls
  • Civil Engineering
  • Piping Engineering
  • Piping Stress Analysis
  • Project Management/Scheduling
  • Estimating Construction Management
  • Site Inspection/Shop Inspection
  • Safety/Safeguarding/HAZOP
  • Procurement/Purchasing/Expediting
  • CADD Drafting
  • Well site preparation and decommissioning
  • Oil and gas production facilities.
  • Oxygen and nitrous oxide gas plants
  • Electro-mechanical installations
  • Electrical instrumentation and controls
  • Erection of process plants and steel structures
  • Erection of electrical substations, switchgears control panels and distribution boards
  • Plant rooms and pumping station
Technical Manpower Services Security Services for Oil and Gas Assets
  • HIOGAS is an experienced provider of manpower services, recruiting for all levels of expertise in the oil and gas industry.
  • HIOGAS brings extensive experience and expertise to the manpower sector in Yemen and India.
Key strengths:
  • Extensive knowledge of the oil and gas industry
  • Extensive experience in Human Resource Management
  • HIOGAS has established a reputation as the leading provider of defensive and protective security services in Yemen.
Our services include:
  • Full turn-key security operations for clients in the oil and gas industry
  • Protective security and management for oil and gas facilities and pipeline projects
  • Risk management consultancy for strategic and operational security solutions
  • Expatriate security managers
  • Private security guard forces
  • Personal security, VIP security escorts and close protection
  • Training and consultancy
  • Security equipment, technology, security installations and access control
  • Surveillance and air support

Total is the world’s fourth-largest oil and gas company and a world-leading solar energy operator through SunPower. With operations in more than 130 countries, they have nearly 100,000 employees who are fully committed to better energy.


  • Cable pulling, cable dressing, and cable termination, low and high voltage as per single line diagram.
  • Fabrication of support and cable tray fixing as per drawing specification.
  • Electrical modification, cable testing, cable integrity, cable identification and commissioning done.
  • Cable trunking, cable tray, conduit, EMT, rsc, and PVC fixing including panel installation.


  • Tube bending, degrease as per drawing specification or depend on site condition.
  • Calibration and function of instruments, pressure gauge, level transmitter, safety relief Valve, Pressure Test Recorder and others.
  • Cable laying, installation and termination.

Yemen LNG aims to be a responsible company locally, nationally and internationally and is making significant efforts in terms of its social and environmental responsibilities. The Company aims to create value for all of its stakeholders, namely the relevant Yemeni authorities and the local communities, in the vicinity of its operations.

As the country’s largest-ever industrial investment (budgeted around US$ 4.5 billion), the decision to launch the Yemen LNG project in August 2005 was an important milestone for both the Government of Yemen and the Yemen LNG.

Work done as follow:
  • power supply 400KVA.
  • power generators.
  • boilers servicing.
  • instruments calibration.
  • complete electromechanical work
  • pipe welding
Project held in Aden of 70Mwatts work done as follows:
  • Complete turnkey electromechanical work.
  • Power generation with 400KVA.
  • Transformers + Switchgears.
  • All MDBs with cable and cable lying.
  • Complete telephone unit +Network (Split units+ Firefighting system).
  • Earthing system.
  • IP CCTV.
  • Well head servicing
Petromasila work done as follow:
  • Transformers+ switchgear
  • complete electromechanically work
  • generators supply
  • instruments service
  • cable lying
Work done as follow:
  • Generators Overhauling
  • Trucking
  • Cable lying
  • Complete elctromechanical work
Work done as follow:
Supply, Installation, Commissioning of 11KV/0.4KV Substation as follows:
  • Supply of 3 x 1500KVA Distribution Transformers 11/0.4KV Schneider Electric Elvim.
  • Supply of Copper Busduct 2500A4P approx. 60 Meters LV, 600VAC, Schneider Electric Squared.
  • Supply of 11KV Switchgear 8 No. Cubicles with Bus coupler from Schneider Electric GenieEvo.

Oil & Natural Gas (HIOGAS)

  • Address: Al- Rebbad street near to golden pen library, sanaa , Yemen.
  • Contact Person: Engg.Atef Alhaj
  • Office: +967-1-212500.
  • Fax: +967-1-212512.
  • E-mail: hiogas@alhajepc.com
  • Website: www.alhajepc.com.