摘要
Madederop-1井是中国石油在印度尼西亚马杜拉岛2010年打的三口探井之一;其井况复杂,大多数层位为超压层,施工2根2-7/8″油管的层位压力系数为1.5,井筒内采用比重为1.8的泥浆。结合工具原理和现场试验,对LPR-N阀中途开阀和测试结束不能开阀故障进行分析并提出解决办法。
Maderop-1 is one of the three exploration wells drilled by PetroChina in Maderop Island of Indonesia in 2010.The well situation is complicated and most of the layers are overpressure formation.The two oil tubes（2-7/8″） were in the position where the formation pressure coefficient was 1.5.The mud specific gravity was 1.8 in the wellhole.The field procedures is introduced,along with the fundamentals of tool and field test.For the LPR-N valve opened automatically during the testing process and can＇t open after the test,the breakdown is analyzed and the solutions are suggested.
出处
《科学技术与工程》
2011年第15期3545-3548,3566,共5页
Science Technology and Engineering
关键词
LPR-N阀
大比重泥浆
故障分析
LPR-N valve high specific gravity mud breakdown analysis
