Method of retrieving a fish from a well bore专利检索- 在井眼或井中打捞或排除物体专利检索查询-专利查询网

Method of retrieving a fish from a well bore
申请号	US3587748D	申请日	1970-01-08	公开(公告)号	US3587748A	公开(公告)日	1971-06-28
申请人	TRI STATE OIL TOOLS INC;			发明人	KERR WILLIAM I;
摘要	A METHOD OF RETRIEVING A FISH FROM A WELL BORE WHERE THE UPPER END OF THE FISH IS OUTSIDE THE NORMAL WELL BORE AND CANNOT BE CAUGHT BY THE USUAL FISHING TOOLS WHERIN SUCH METHOD INCLUDES THE STEPS OF CUTTING A NOTCH IN THE SIDE OF THE UPPERMOST PORTION OF THE FISH WITHIN THE NORMAL WELL BORE AND THEREAFTER LOCATING A CUTTER ON SUCH NOTCH TO CUT THROUGH THE FISH SO THAT A RETRIEVING TOOL ENGAGES THE FISH AND RETRIEVES THE SAME WHEN THE STRING WITH THE CUTTER AND RETRIEVING TOOL IS PULLED.
权利要求
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