METHOD OF SEALING WELLHEAD IN GUSHING THROUGH PIPE STRING
摘要
申请公布号
SU1629473(A1)
申请公布日期
1991.02.23
申请号
SU19884623863
申请日期
1988.12.21
申请人
VOENIZIROVANNAYA CHAST PO PREDUPREZHDENIYU VOZNIKNOVENIYA PO LIKVIDATSII OTKRYTYKH GAZOVYKH NEFTYANYKH FONTANOV SEVERO-VOSTOCHNOGO PROMYSHLENNOGO RAJONA
