Tacan Well 1 , as the first ultra-deep exploratory well in Tarim so far, encountered severe wellbore collapsing and hardly continue drilling in dolomite formation.

 
  • 塔參1井是迄今為止在塔里木盆地鉆成的陸上第一超深井。該井在鉆進(jìn)奧陶系、寒武系白云巖地層時(shí),井眼發(fā)生嚴重坍塌,導致難以繼續鉆進(jìn)。
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