史深100低渗透油田钻完井工程油层保护技术  

Oil bearing Formation Protecting Series during Drilling and Completing in Low Permeable Oilfield of Shishen 100

作　　者：封永利[1] 

机构地区：[1]胜利油田有限公司现河采油厂

出　　处：《断块油气田》2004年第6期62-64,共3页Fault-Block Oil & Gas Field

摘　　要：史深 1 0 0低渗透油田主力含油层系为沙三中 ,由于其特殊的地层性质 ,在钻井过程中更容易受到污染而降低采收率。实验结果表明 ,铵盐钻井液对粘土的抑制作用有利于保护史深 1 0 0水敏性油层 ;在入井液中添加防膨剂、缓蚀剂、破乳剂、助排剂 ,可得到性能良好的新井入井液 ;单向屏蔽暂堵剂和降滤失剂的使用 ,油管传输负压射孔均可减少对地层的伤害。因此 ,在钻完井过程中采取各种有效的油层保护技术 ,降低污染危害 ,是关系到此类低渗透油田开发效益的关键。The Middle Es 3,the main oil bearing series of Shishen 100,is easy to be polluted during drilling due to its special formation properties,which also cause low recovery efficiency The experiments show that the inhibitation of ammonium salt drilling mud can protect water sensitive formations better in Shishen 100;inflows with good performance can be made by adding clay stabilizer,corrosion inhibitor,demulsifying agent and cleanup additive;besides,the use of one way temporary blocking agent and fluid loss additive also lessen damages on formations as well as negative pressure perforating through tubing So,using all effective techniques during drilling and completing to reduce formation pollutions is the key affecting the benefit of developing low permeable oilfields

关 键 词：低渗透油田 敏感性 油层保护 油田开发 污染 

分 类 号：TE347[石油与天然气工程—油气田开发工程]