流动保障技术在BZ34-3/5油气田开发中的应用  被引量:6

Application of flow assurance technology in BZ34-3/5 field development

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作  者:刘菊娥[1] 倪浩[1] 

机构地区:[1]海洋石油工程股份有限公司

出  处:《中国海上油气》2010年第1期69-72,共4页China Offshore Oil and Gas

摘  要:BZ34-3/5油气田属于边际油气田,由于所处海域环境温度较低而所产原油凝固点较高,混输管道初次启动难,且在冬季停输情况下管内原油容易出现在较短时间内凝固而堵塞海底管道的风险。应用流动保障技术对BZ34-3/5油气田海管预热、置换过程和停输后的温降等多种工况进行了动态模拟,确定了初始投产时采用完井液预热和停输再启动时采用海管子母管置换的流动保障方案,从而合理地解决了启动预热和海管停输再启动的问题,有效地规避了凝管风险,为油气田安全合理的开发提供了有力的技术保障,确保了该油气田开发工程投资和运行成本的降低。流动保障技术在BZ34-3/5油气田开发中的成功应用,对其它类似边际油气田开发具有借鉴作用,也为深水油气田开发流动保障问题研究奠定了基础。BZ34-3/5 field is marginal field.The multiphase subsea pipeline of the field is difficult to perform initial startup due to the low temperature environment and high oil solidification point,and the risk of the crude oil solidification and subsea pipeline blockage appear easily during shutdown period in winter.In order to solve the problem,the flow assurance technology has been applied in BZ34-3/5 field to simulate the subsea pipeline startup preheating,displacement,temperature drop after shutdown and other working conditions,and determine the flow assurance plan that well completion liquid is used for initial startup preheating of subsea pipeline and the bundled pipeline is adopted to displace the pipeline for re-startup after shutdown.Hence,it helps to avoid the risk of subsea pipeline blockage effectively and provides the technical support.In addition,it can reduce the costs in field development and operation.The successful application of flow assurance technology in BZ34-3/5 has offered a good reference for other similar marginal fields and laid the foundation for the study of flow assurance technology for development of deep water fields.

关 键 词:边际油气田开发 海底管道 流动保障 启动预热 停输再启动 

分 类 号:TE319[石油与天然气工程—油气田开发工程]

 

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