|Publisher||Society of Petroleum Engineers||Language||English|
|Content Type||Conference Paper|
|Title||Understanding of Oilfield Souring and Effective Monitoring: A Case Study|
Ardian Nengkoda, Musallam Mandhari, Mohammed Hajri, Hilal Barhi, and Liali Qasmi, Petroleum Development Oman, and Ron Hofland, Shell
SPE Middle East Oil and Gas Show and Conference, 15-18 March 2009, Bahrain, Bahrain
2009. Society of Petroleum Engineers
|5 Production and Operations
The increasing H2S levels have caused concern for future production scenarios, as the materials used in the X field subsequent processing facilities at down stream facilities are reported not to be Natl. Assn. of Corrosion Engineers (NACE) 175 compliant. This needs to be addressed further, as H2S levels seem to level out, and the production system seems to cope with current conditions.
Meanwhile, in opposite, having started production in the early 1970, Y field produces from the S (sour) and the H (sweet). Both reservoirs are mature, needing artificial lift to sustain high water cut production. Currently, the S sour wells are equipped with ESPs, and the H wells are being gaslifted. Development plans for the S are currently being progressed. Whilst studies are being conducted on possible recovery mechanisms, recent reports of sharply increasing H2S levels have caused concerns on HSE and facility integrity in future operational modes. In order to place this into project perspective, a study was commissioned to both X and Y oilfield to verify H2S trends, understand their root cause and predict possible future H2S scenarios.
|File Size||270 KB||9|