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"Large Sized" Oil and Gas Find in Tianjin Bohai Bay
Published on: 2021-02-23
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Chinese national oil company CNOOC said Sunday it had made a “large sized” oil and gas discovery Bozhong 13-2 in Tianjin Bohai Bay.
 

CNOOC said that the Bozhong 13-2 structure was located in the south-western Ring of Bozhong Sag in the Bohai Bay with an average water depth of about 23.2 meters.
 

The discovery well BZ13-2-2 was drilled and completed at a depth of 5,223 meters, and encountered oil pay zones with a total thickness of approximately 346 meters. The well was tested to produce an average of approximately 1,980 barrels of crude oil and 5.25 million cubic feet of natural gas per day, the company said.
 

The CNOOC Group is the largest producer of offshore crude oil and natural gas in China and one of the largest independent oil and gas exploration and production companies in the world.
 

距天津140公里 渤海有重大发现

昨天,中海油天津分公司科研人员在我国渤海再获大型油气发现渤中13-2油气田,探明地质储量亿吨级油气当量,对海上油气田增储上产、保障国家能源安全具有重要意义。
 

渤中13-2油田位于渤海中部海域,距离天津市约140公里,平均水深约23.2米。渤中13-2-2井共钻约346米厚的油层,完成钻井深约5223米。经测试,该井平均日产原油约300吨、天然气约15万方。
 

“渤中13-2发现的主体区属于太古界潜山构造,被中生界的致密地层所覆盖,就像头顶带了一层帽子,储层难以清晰认识,油气运移的路径不明,勘探难度大。”中国海油勘探部总经理周心怀说,近年来围绕潜山等复杂地质构造,中国海油不断加强地质认识创新和勘探技术攻坚,先后在渤海发现了大型凝析气田渤中19-6、亿吨级油田垦利6-1等油气田。
 

为实现储量高效转化,中国海油创新应用勘探开发一体化管理模式,利用现有油田设施快速推动井区试采,探井直接转为生产井,节约钻井费用7000余万元,大大缩短油田建产周期的同时,增加了油气产量。

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