分层系开发井网优化部署技术应用研究——以E区块A井区为例  

Technology for Well Pattern Optimization of Zoning Development in Wellblock XX and Its Application

作　　者：张庆[1] 

机构地区：[1]中石油辽河油田分公司金马油田开发公司,辽宁盘锦124010

出　　处：《长江大学学报（自科版）（中旬）》2016年第1期68-71,共4页Journal of Yangtze University(Nature Science Edition)

基　　金：国家自然科学基金项目(61273179)

摘　　要：A井区是由B断层和近北东向的C断层夹持的小断块。该断块以前一直归属于D区块进行开发,2015年通过井震结合重新落实构造,该断块仍处在大洼断层上升盘,与E油田主体同属一块。构造重新落实后,结合新建储层二次解释,该井区含油面积增至0.5km2,地质储量增至158×104t。以前井区内共有9口油井,累计产油39.71×104t,采出程度较低(为25.1%);井区仅有的3口注水井均位于断块边部,注采井网不完善,区块整体水淹程度较低,部分区域未水淹。针对上述问题,通过精细油藏地质体研究、精细量化剩余油分布特征研究及分层系开发井网优化部署研究,一次部署调整油井14口、注水井12口。在中东部区域优先实施直井2口,日产能力较高达(23.9t),取得较好的开发效果,为该井区分层系规模开发提供了依据。XX Wellblock was a small one between XX Fault and near EN fault,it has been vested in XX Wellblock for the development.In 2015,its structure was reestablished by combining wells with seismic interpretation,it was still on the rising plate of Dawa Fault and it was in the same block with XX Block.After the structure was reestablished and combined with the reinterpretation of the newly built reservoir,its oil-bearing area was enhanced to 0.5km2,and geologic reserves was raised to214.64×104t.By the end of April of 2015,there were 15 wells drilled in the wellblock with cumulated oil production of 34.4×104t and lower recovery percent of 16.1%,there were only 4wells located on its margin,its injection-production well pattern was incomplete with low level of water out in the whole block and there was no water out in some parts of the block.In consideration of the above problems,based on the studies of fine reservoir geology,fine quantification of remaining oil distribution characteristics and optimizing the well patterns for zoning development,14 well was deployed at once.In 2013,it was implemented in priority in 2vertical wells with daily production of 23.9t.The technology is used in the field and better result is obtained in production,it provides basis for zoning development at a large scale.

关 键 词：断块构造 分层系开发 井网调整 

分 类 号：TE324[石油与天然气工程—油气田开发工程]