PTTES provides services on plant reliability assessment and improvement and asset integrity management. The consultancy services include:-

1. Technical audit on plant reliability and integrity system which delivers short and long term recommendations with priorities
2. Engineering advice and solution for the plant and equipment reliability improvement
3. Fault finding and failure analysis service using appropriate techniques to identify the root cause and propose remedial actions
4. Services on maintenance improvement strategy and management to maximize plant availability and reduce shutdown duration
5. Technical due diligence of plant or equipment

PTTES co-creates RAI benchmarking matrices with Solomon which enhances Solomon RAM® matrices. The benchmarking enables the customer to visualize the maintenance and reliability business landscape and to understand the top quartile performance level and indication of the customer's rank in the performer range both at the international and Thailand floor. As world business has been changing very fast over a short period of time, a company has to rapidly adapt itself to the change. The maintenance activities are also important as their related costs reflect at the company bottom line, it is therefore vital to do regular benchmarking to visualize moving targets. Thanks to the normalization technique, the program can compare maintenance and reliability performance not only among Refining and Petrochemical industries but also others, e.g. Power, Chemical, Terminal industries, etc. By the use of the benchmarking study result, a company is properly advised the roadmap to achieve the top - quartile performance. In addition, PTTES can assist the customer in prioritizing the recommendations and coach customer personnel in improving plan and process.

PTTES offers solutions to support customer to sustain asset integrity and provides a full range of asset life calculation and extension program which are supported by FFS – Fitness for Service methodology including API RP 579, finite element, Life Cycle Costing (LCC).

PTTES can provide a comprehensive Risk Based Inspection (RBI) study which is conducted in terms of both consequence of failure and susceptibility to failure to cover all aspects of international standard API 580 / 581 by using Shell-RBI methodologies and others. In addition, PTTES can further help customer generate inspection plan and assist in implementation.

PTTES can provide facilitation service of Reliability Centered Maintenance (RCM) which applies the international standard SAE JA-1011 or Shell-RCM methodology by using Ivara RCM2 , Shell-RRM (RCM license) respectively and other market leading tools (by customer's request). Besides, PTTES can further help customer generate maintenance and operation action plan and assist in implementation.

PTTES provides assistance services of Safety Integrity Level (SIL) study for SIF / SIS (Safety Instrument Function & Safety Instrumented System) to cover all aspects of IEC61508 / 61511 including:-

1. SIS - Safety Lifecycle Management development service
2. SIL assessment, SIF design including Safety Requirement Specification (SRS) development service
3. SIF validation service to calculate the probability of failure on demand (PFD) against the Safety Requirement Specification (SRS)
4. Functional Safety Assessment service to verify and monitor the performance of SIF / SIS in operation and maintenance phase

PTTES provides services to support customer engineering standards initiative and best practices development including design strategy, planning for effective project execution, and developing supporting management framework.