Maintain log, then step by ...

Maintain log, then step by step

Dear Mr. Ambrose Okorie,

Whenever a bore is drilled, it is mandatory to maintain a log of the strata of the bore, at  fixed depth intervals. And if there is a change in the strata, that depth is also noted. This has to done by the driller who operates the drill. As you have asked, there cannot be a single answer for this problem.

First of all we have to analyse the problem of breaking of the drill string. Then only we can retrieve the drill bit along with the string of tools. The reason for the failure of the drill string decides the FISHING TOOL to be designed. The Fishing Tool designed and manufactured should be carefully inserted into the bore with caution to catch hold of the tip or some part of the string of tools inside the bore.

Daily diary of progress on Fishing operation, will decide the next day of operation. If there is good progress & hope in the recovery of the bit, then the same Fishing Tool may be used. If not new Fishing tool has to designed and manufactured for use in the bore well. Use of heavy magnets may some time yield good result(Provided the string of tools is of iron and the magnet has the capacity to pull the entire string of tools and the drill bit. In any case, the Fishing operation has to be undertaken PATIENTLY and by EXPERTS in such operation.

WISH YOU GOOD LUCK

P. SUNDAR