MY104392A - A dirlling tool. - Google Patents

A dirlling tool.

Info

Publication number
MY104392A
MY104392A MYPI89000042A MYPI19890042A MY104392A MY 104392 A MY104392 A MY 104392A MY PI89000042 A MYPI89000042 A MY PI89000042A MY PI19890042 A MYPI19890042 A MY PI19890042A MY 104392 A MY104392 A MY 104392A
Authority
MY
Malaysia
Prior art keywords
tool
drilling
driven member
production string
thread
Prior art date
Application number
MYPI89000042A
Inventor
Lau Werner
Original Assignee
Smith International North Sea Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Smith International North Sea Ltd filed Critical Smith International North Sea Ltd
Publication of MY104392A publication Critical patent/MY104392A/en

Links

Landscapes

  • Earth Drilling (AREA)

Abstract

A TOOL IS INTENDED FOR USE IN AN OIL OR GAS WELL TO RETRIEVE A DRILLING OR PRODUCTION STRING FROM THE WELL, PARTICULARLY IN A SITUATION WHERE THE CASING OR FORMATION HAS COLLAPSED, THUS GRIPPING THE DRILLING OR PRODUCTION STRING.THE TOOL HAS A DRIVEN MEMBER WHICH PRESENTS, AT ITS LOWER END, A SELF- TAPPING THREAD SUCH AS COUNTERCLOCKWISE SELF- TAPPING THREAD. THE TOOL INCLUDES A RATCHETING ARRANGEMENT WHICH CAN DRIVE THE DRIVEN MEMBER IN A COUNTER- CLOCKWISE DIRECTION WHEN THE TOOL IS LOWERED RELATIVE TO THE DRIVEN MEMBER. THE TOOL CAN BE REPEATEDLY RAISED AND LOWERED THUS ENABLING THE SELFTAPPING THREAD TO BE ENGAGED WITH THE TOP OF THE DRILLING OR PRODUCTION STRING. (FIG. 5)
MYPI89000042A 1988-01-12 1989-01-12 A dirlling tool. MY104392A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB800572 1988-01-12

Publications (1)

Publication Number Publication Date
MY104392A true MY104392A (en) 1994-03-31

Family

ID=79604019

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI89000042A MY104392A (en) 1988-01-12 1989-01-12 A dirlling tool.

Country Status (1)

Country Link
MY (1) MY104392A (en)

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