Chinese to English: Analysis on and Preventive Measures for Geologically-induced Oil Spill Risks
General field: Tech/Engineering
Detailed field: Chemistry; Chem Sci/Eng | |
Source text - Chinese
地质油藏风险分析
a. 油田储层连通性差因注入作业可导致超压
连通性差的储层，注采对应率低，注入造成的压力难以通过采出及时释放，存在超压风险; 尤其是对于“有注无采”的储层/小层，更容易导致超压风险。
经风险排查发现，蓬莱19-3/19-9/25-6油田8个注采井组的8个小层存在“有注无采”可能导致的超压风险，分别是B05(L22)、B11(L22)、B13(L42、L44)、B24(L22)、D08(L46)、D41(L10-L22)、M03(L42)、E34(L44).
油田由于存在连通性差的小断块，也存在超压风险。
| Translation - English
Analysis on Risks in Geological Oil Reservoir
a.Poor Connectivity of Oilfield Reservoir, Easy to Cause Excessive Pressure by Injection
For the reservoir featuring poor connectivity, the injector-producer connection factor is low; and the pressure resulting from the injection is difficult to be released through recovery, therefore, it has the risk of over-pressure.
It’s easier to cause over-pressure risk especially for the horizon with “injection but no production”.
According to the risk investigation, the 8 substrata of 8 injection-production well groups of PL 19-3/19-9/25-6 Oilfield has the risk of over-pressure arising from “injection but no production", which are B05(L22)、B11(L22)、B13(L42、L44)、B24(L22)、D08(L46)、D41(L10-L22)、M03(L42)、E34(L44).
PL 25-6 Oil-field also has the risk of over-pressure because of the existence of small faults with poor connectivity.
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| Chinese to English: Ensuring both Stability and Safety for Deepwater Operation | |
Source text - Chinese
深水在全球范围内已变成油气储量主要的接替区，成为未来油气勘探的重点领域。
海洋工程装备被列为国家“十二五”高端装备制造业之后，如何保证我国深海油气勘探开发平稳、安全地进行？其中涉及海洋工程装备国产化等诸多问题，同时也考验着政府及企业家们的智慧。
增强技术装备实力
“‘海洋石油981’已抵达荔湾311井位，平台附近水域水深400余米，其它钻井船工作时效普遍低于50%，而981自2012年3月开钻至今，时效可达96%。
近期召开的2012年中国海洋工程装备论坛上，中海油深水钻井船项目组副经理粟京，用实例证明了高端装备带来的改变。
中海油服在深水板块的投入也在加大，国内首艘12缆深水物探船“海洋石油720”于2011年顺利投产，并创造了多项国内海上拖缆物探作业的新记录。 | Translation - English
Deepwater has now become major substitution of oil & gas reservoirs in the global range and the key domain for future oil & gas exploration.
How to ensure the stability and safety of deepwater oil & gas exploration in China after marine engineering equipment has been listed as high-end equipment manufacturing industry for “12th Five-year Plan”? It involves such problems as localization of marine engineering equipment, and is also the touchstone of wisdoms of the governments and entrepreneurs.
Strengthening Technological Equipment Level
“ ‘HYSY 981 Platform’ has reached LW-311 well position, with the water depth near the platform over 400m. The working efficiency of other drillships were generally lower than 50%, however, since March 2012 when HYSY 981 Platform was put into use, the efficiency can reach 96%.”
Recently, in China Marine Engineering Equipment Forum 2012, Li Jing, deputy manager of CNOOC deepwater drillship project team, demonstrated the change brought by advanced equipment.
COSL continuously increases inputs in the deepwater block. Its HYSY 720 successfully put into production in 2011 was the first 12-cable deepwater geophysical vessel in China, with many new records created in offshore hauling geophysical vessels in China. |
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