NEUTRON LOGGING METHOD FOR LOCATING TOP OF CEMENT BEHIND BOREHOLE CASING

被引:0
|
作者
AHMED, AE [1 ]
机构
[1] OIL & NATURAL GAS COMMISS,MADRAS,INDIA
来源
JOURNAL OF PETROLEUM TECHNOLOGY | 1977年 / 29卷 / SEP期
关键词
OIL WELL CASING - OIL WELL CEMENTING;
D O I
10.2118/6498-PA
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
The use of neutron logs to locate the top of the cement around a casing is described. The theory is that presence of liquids in the annulus outside the casing will increase absorption of the neutrons and reduce secondary gamma radiation compared with a cemented portion. An example neutron log is interpreted to show the cement top.
引用
收藏
页码:1089 / 1090
页数:2
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