Focused and experienced Mud Logging and Production experts serving you for the lifetime of your wells.

The ISO 9001:2015 certificate for DHI Services Sdn. Bhd. An Excellence Logging Company has been successfully renewed.

The ISO 9001:2015 certificate for DHI Services Sdn. Bhd. An Excellence Logging Company has been successfully renewed.

The management system of DHI Services Sdn, Bhd. An Excellence Logging Company, has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by ISO 9001:2015. Our Quality Management System is applicable to operation, manufacturing, refurbishment and service support of Mudlogging units.

Mr Yves Gehan, Vice President for Excellence Logging in Asia said : "We are proud to achieve the re-certification of ISO 9001:2015 for another 2 years under the Excellence Logging (EXLOG) Group. Perfection is not attainable, but if we chase perfection we can catch Excellence. Excellence in high level of Reliability, Competence Delivery, Delivery Quality & satisfying Solutions to problems." 

View certificate here



Excellence Logging Service has been certified for ISO 9001:2008 for 14 years and has just obtained certification for the new version ISO 9001:2015.

ISO 9001 & ISO 14001 Certificates

Dajan East srl extended his Well Intervention ISO 9001 and the ISO 14001 certificate for the Surface Data Logging Services.

This achievement certify the High quality and care for environmental delivery service and brings the Dajan East.

“I am very proud that Dajan East, thanks to the merger with the Excellence Logging group, starts his Surface Data Logging Services for East Europe in 2018 participating to new tenders in Romania” said Gianfranco Protano, Dajan East - Region Manager .


UNI EN ISO 9001:2004 and UNI EN ISO 14001 Certified

Dajan, An Excellence Logging Company, is an Italian registered UNI EN ISO 9001:2004 and UNI EN ISO 14001 certified Service Company mainly specialized in services and products delivery related to Slickline, Wire-line, Coiled tubing and Production enhancement systems. Dajan performs operations both on land and at sea (platforms and jack up) on either gas or oil wells with surface equipment that can withstand operating pressures up to 15,000 psi WP.

Dajan implemented the following Management and Safety systems in order to initiate any action aimed at protecting not only the Health and Safety of the human resources but also in respect to the Environment in which it operates:

  • Quality Management System according to UNI EN ISO 9001: 2008
  • Environmental Management System prepared according to UNI EN ISO 14001
  • Risk Assessment according to the Decree. No. 81/2008
  • Safety Manual according to the Decree. No. 624/96

Dajan always actively participates and collaborates with Clients to comply with Safety regulations. In particular, equipment checks are first planned and then carried out either in or outside our facilities; they are all recorded in the test report that have the dual purpose of highlighting the efficiency of equipment and update the track record.

Dajan's staff is the key for the respect of both legislative and operational requirements and people are regularly trained and informed to any job safety aspects. All operations are supervised by managers / officers that guide the employees in operating safely and in compliance with Dajans and Customers internal regulations. All field personnel are equipped with appropriate personal protective equipment (PPE) and trained to use them consistently and correctly. Periodically within the company are held meetings designed to allow the disclosure, the exchange of information and constructive cooperation between all Company's levels.

Our core values

Our core values are ingrained deep in to our working philosophy. They are:

  • Dedicated innovation
  • Excellence in Action
  • People Driven Organisation

Mission Statement

Excellence Logging creates value for the oil, gas and geothermal industries worldwide through the application of its dedicated technologies and superior service delivery. Together dedicated technologies and superior service delivery improve geological, drilling and production control of all well types.

The Continuous Improvement Process frames our fundamental approach and drives of our management system. It reduces risk and costs for our customers, increases the health and safety of personnel, and minimizes adverse environmental and social impact.