This analysis will give bird eye view of Instrumentation and Control System failures. With this chart, we can conduct further detail analysis in “bad actors” who contributes significant loss production.īasically, I&C can be divided into 3 categories: One of resulted analysis is “Pareto Chart” as shown in following figure. It is necessary to capture all the relevant information on defects that have occurred over the same time frame. The aim of chronic failures analysis is to complete the overall picture of equipment defects and the bad-actors that contribute to repetitive Loss Production. Having “correct” I&C LP record, it will enable to conduct further analysis such as “I&C Chronic failures analysis”. Typically, failure data can be collected from Loss Production database and Maintenance record / CMMS (Computerized Maintenance Management System) such as SAP or Maximo. It plays importance role during analysis. The most significant and critical process is “data collection”. Following figure shows typical process of Chronic Failure Analysis. This methodology is conducted to reveal the “bad actors” who contribute significant failures on “Instrumentation & Control” LP category. This is the first qualitative approach to address loss production reduction program. Some detail actions related to corrective and preventive actions is described by following figure. In traditional perspective, it can be performed with 2 ways, corrective and preventive actions. It is highly importance to conduct study and assessment of ICS reliability.įollowing figure depicts the “brd-eye” view to reduce loss production caused by ICS failure. With all above conditions, ICS give very importance role in order to reduce overall Loss Production. More safety concerns than reliability: safety does pay, but reliability costs.Ironically, control systems are often the least understood parts of the plant Modern plants are highly reliant on the automated Control Systems, in order to operate efficiently & safely.Paradoxically, the profit loss impact of Process Control System (PCS) unreliability has been very high, often the highest among other factors (such as Process Upset, Mechanical Integrity, Turbomachinery, etc).Instrument & Control often “overlooked” by the traditional RCM & other reliability planning methods, being considered as “small” entities.We often found following conditions in real world. Current “de facto” practice, Instrumentation and Control System (ICS) Failure was the biggest contributor to Loss Production, especially in oil and gas industry.

Instrument reliability