2006 3Q IM Risk Register.ppt

1、Yacheng Operating Company (YOC) MajorIntegrity Management (IM) Risk Register Oct 2006,High,Med,Low,Med,Low,High,Cooling Water System,WGC Module Installation,DH Corrosion,HK Pipeline lacks of ER Plans,APD old PLQ still being used,GPA Ship Channel Dredging,PW and Drain Headers,Under Insulation Corrosi

2、on,Fire Water System,Platform Jacket Integrity,NSB Control Room Lacks of Blast Wall,Consequence of IM Failure,Probability of IM Failure,Velocity Erosion Corrosion,Corroded Bolts / Nuts And Flanges,NSB Jetty Trench Corroded Pipe Repair,Y13 External Corrosion,Staff Competency,Cold Vent Study,Wet Gas C

3、ompression (WGC) module was successfully loaded out onto Y13 APD platform on July 23, 2006. However, final hookup and commissioning work continues. With large number of new contractors (total POB 107)and difficulties of welding large diameter duplex steel piping on a live high pressure gas process p

4、latform, the risk is extremely high,Action Plan,Location: Y13 APD PlatformRisk Owner: Y13 OIMs Risk: WGC Module InstallationDate last reviewed:Oct 2006,Large number of corroded carbon steel bolts and nuts were found on Y13 platforms. Approximately 60% were replaced in 2003-2004. However, remaining i

5、tems can not be replaced without long shut in time, which is not likely to occur soon. Need to find ways to stop corrosion on these CS bolts and nuts immediately to prevent catastrophic failures,Action Plan,Location: Y13 PlatformsRisk Owner: Y13 OIMs Risk: Corroded CS bolts and nutsDate last reviewe

6、d:Oct 2006,Many thermal insulations on Y13 platforms are broken or missing and moisture can enter to cause corrosion under insulation (CUI). Some other cold pipes are either dripping water or forming ice which can also cause corrosion,Action Plan,Location: Y13 PlatformsRisk Owner: Y13 OIMs Risk: Und

7、er Insulation CorrosionDate last reviewed:Oct 2006,High attrition rates over the past 3 years seriously affecting field operators competency. Active recruiting and training temporarily fill job vacancies. However, lost expertise and experience are difficult to replace. Good field operator training p

8、rograms (STEPS 1-5) are in place. However, field staffs are too busy to complete the training and there is a shortage of mentors /assessors.,Action Plan,Location: All LocationsRisk Owner: YOC HR Risk: Staff CompetencyDate last reviewed:Oct 2006,The original Permanent Living Quarter (PLQ) on APD plat

9、form was supposed to be removed after installation of the new Safe Refuge platform (SRP) in 2004. YOC continue to use PLQ as temporary living quarters for contractors, especially during the WGC project .,Action Plan,Location: Y13 APD PlatformRisk Owner: Y13 OIMs Risk: APD PLQ RemovalDate last review

10、ed:Oct 2006,There is currently no emergency repair plans or spare parts available for the 28” HK subsea pipeline. If a leak occurs, it may take 4- 10 weeks to have the pipeline repaired. The financial impact on gas sales revenue loss and shortfall penalties is very high.,Action Plan,Location: YOCRis

11、k Owner: Ou Guanyao Risk: HK Pipeline ER PlanDate last reviewed:Oct 2006,Serious external corrosion problems were observed in 2001 mainly due to poor quality of original coating and lack of coating maintenance programs in 1996-2001. Aggressive refurbishment painting/coating projects in 2002-2005 rep

12、aired 85% of the Y13 platform coating surface. The remaining areas (AWA cellar deck and old helipad) need to be painted as soon as possible,Action Plan,Location: Y13 PlatformRisk Owner: Y13 OIM Risk: Y13 External CorrosionDate last reviewed:Oct 2006,Increased weight from the new WGC module and old P

13、LQ may affect APD platform dynamic stability post WGC installation. Platform jacket inspection in 2005 showed marine growth thickness is above specifications, which can also affect platform dynamic stability,Action Plan,Location: Y13 APD PlatformRisk Owner: Y13 OIMs Risk: APD Jacket StabilityDate la

14、st reviewed:Oct 2006,Under insulation corrosion was found on service pipes inside the NSB jetty trench. Through wall corrosion leaks were found on some compressed air service pipes.,Action Plan,Location: NSB Risk Owner: NSB Superintendent Risk: NSB Jetty Trench Pipe Repair Date last reviewed:Oct 200

15、6,Cold vent at BP Texas City Refinery resulted in an incident that killed 15 people. Gas dispersion study has never been conducted for HK GRS HP vent stack system. Gas dispersion study was conducted for Y13 APD platform HP vent system in 2001. However, HP gas inventory and blow down rates may change

16、 slightly post WGC module installation,Action Plan,Location: Y13 Platform & HK GRS Risk Owner: OIMs Risk: HP Vent Gas Dispersion Study Date last reviewed:Oct 2006,Our 28” HK pipeline is buried - 18 m below sea level underneath 3 ship channels at the mouth of Pearl River Delta. Guangzhou Port Authority (GPA) is planning to dredge their ship channels to -15.5 m below sea level in 4Q, 2006. They are a