Abstract
The pipe work repair method such as clamps and pipe connector as the use of metallic repair component have been used for maintenance and repair application in oil and gas industry and cover the most common types of defect to pressurize system like internal and external corrosion and also cover situations where the damage is severe. On the other hand with a process safety precausion and production concern, in oil and gas facility the use of metallic repair is very challenging and most of the time will come as last option scenario. Composite repair which are now increasing in application to pipe repair situations may come as a solution. This paper provides assessment of offshore piping composite repair for life extension program of pressure system in West Madura Offshore. Assessment come to a conclusion that the composite repair at field PHE WMO which operate on envelop of 700 psi and temperature range of 20°C-80°C are still in good condition and retain the integrity of the asset, from where then the repair is considered to extent its lifetime.
Highlights
Review the Use of Composite Repair at Field Pertamina Hulu Energy West Madura Offshore (PHE WMO). This composite materials used for repair review is intended to present an overview of the work that is currently being practiced within PHE WMO offshore field on piping and pipe repairs using composite materials
The overall philosophy of repair in PHE WMO is “performance based”, which is no prescription in terms of materials nor minimum strengths is provided, the supplier who perform the repair demonstrates the performance of the composite repair system through testing comply to standards specify for oil and gas insdustry
Insitu repair at PHE WMO field using composite considers pressure system at main platform and processing unit like PPP, CPP and ORF layout shown in Fig.1, which include utility fluids, main gas line (MGL) and main oil line (MOL)
Summary
Asset Integrity Managment System (AIMS) is implemented at PHE WMO with the main objective to ensure the process safety and production reliability of facilities and operations through their remaining producing lives. It is intended to standardize a common approach to integrity management of facilities, assure riskbased processes are applied. This process is developed into integrity management cycle: Plan, Do, Check, Action (PDCA) cycle as basis to establish asset integrity program. The scope of PHE WMO AIMS applies to all production and related facilities across the field, as summarize in fig 1, these include, topside pressure system, pipelines, offshore structure, and floating system including SPM, PLEM, Subsea/floating hoses
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