RISK MANAGEMENT IN THE PRE-COMMISSIONING PHASE OF AN OIL AND GAS PIPELINE PROJECT

The transportation of gas from fields (offshore) to the shore is normally by using the sub-sea pipeline. The constructions of Offshore Gas Pipelines are quite complex, in which pre-commissioning activities contains high risk that cause schedule and cost impact. In some case, the risk occurrence leads to the delay of the whole project complex and have negative impacts to Client and Contractors. And sometimes even serious disputes between the involved parties if no precautions are undertaken.

To run the project at highest efficiency, Contractor must look the whole picture of construction phase including pre-commissioning phase.
Due to special conditions of Construction of Offshore Gas Pipelines such as ocean conditions, weather, marine activities and seabed conditions, the pipeline installation is normally contained high risks. The risk management works are normally carried out at starting of design. However, the risk management for pre-commissioning phase is not taken care sufficiently.

Mr. Khuong Minh Dat made a case study on “Risk Management in the Pre-Commissioning Phase of an oil and gas pipeline project” to offer a risk management methodology, especially for pre-commissioning phase of Offshore Oil and Gas Pipeline Project.
His conclusions are:

1) Pre-Commissioning Process of Oil and Gas:

The pre-commissioning process is normally performed by Construction Contractor to ensure that the pipeline construction is completed successfully before handover to start-up activities and put project into operation. It determines how well the construction phase is done; how the project quality is met; stipulates the minimum requirements for the flooding, cleaning, gauging, hydrostatic testing, dewatering, drying and commissioning of the offshore Oil/Gas pipeline; and is the last and important process of offshore pipeline construction.

2) Risk identification for Pre-Commissioning Process

There are many risks can occur from some sources. However, one of the major problems is the risk related with Piping Internal Gauging (PIG) operation that may get stuck inside a pipeline section due to many reasons. The contractors need to develop a strategy that allows him to manage their process effectively and efficiently. The risk identification has crucial role throughout Pipeline Risk Management. The six typical hazards identified in this study are (1) Accident; (2) Gas Explosion; (3) Pig is stuck; (4) Bad gauging performance; (5) Bad cleaning/testing/drying performance; and (6) Schedule delay.

3) Propose Risk Management for Pre-Commissioning Process
There are three frame works recommended for risk management such as:
Ø The systematic approach to risk management for construction” by Anthony Mills (2005)
Ø Risk management Approach in “Managing Risk in Large Projects and Complex Procurements” by Dale F. Cooper et al (2004)
Ø Practical Risk Management in Construction Industry” framework by Leslie Edwards (1995)
Based on the above three typical frameworks which are advisable for Pre-Commissioning Pipeline Risk Management at their practical recommendations, the author offers the PPRM frame work.

His recommendation are as follows:

o It is important to have a good plan is not only for pre-commissioning work but also for the whole construction phase, in which the bad weather window of the sea must avoid. The necessary equipment for work must be arranged probably. Review the quality document and certificates completed with conformance inspect of materials and equipments are also conducted probably.
o The design of pipeline is important requirement. The designer has to foresee construction requirements and all project constrains have to be incorporated in his design. Any insufficient design can cause of problems for construction and pre-commissioning phase.
o The manufactures of line pipes and equipment preparation are taken a very important part of the PPRM. The most finding is the awareness of the preparation work’s impact on PPRM performance.
o PPRM not eliminate almost risks but the risks are minimized and concentrated to acceptable level. Hence, PPRM can save the cost of risk transfer.
o PPRM is recommended applying for the Oil/ Gas pipeline projects not only in Viet Nam but also on the worldwide.

His thesis abstract is copied and posted.

ABSTRACT

Many pipeline projects have been continuously building to get the gas and oil from sea to the shore. The transportation of gas from fields (offshore) to the shore is normally by using the sub-sea pipeline. The constructions of Offshore Gas Pipelines are quite complex, in which pre-commissioning activities contains high risk that cause of schedule and cost impact. In some case, the risk occurrence leads to delay the whole project complex. The negative impacts to project (cost and schedule) at Client and Contractors, or even serious disputes between the involved parties could be raised if no precautions are undertaken.

Risk management is an important part of the decision-making process of all construction companies. Risk and uncertainty can potentially have damaging consequences for some construction projects. Risk can affect productivity, performance, quality, and the budget of a project. Risk cannot be eliminated, but it can be minimized, transferred or retained (Burchett, 1999).

In this report, a risk management for pre-commissioning phase of oil and gas project is presenting. Six important risks