Three Methods of Dealing with Drilling Rig Emergency

1) Brake failure during drilling, what should I do?

First of all, to hang low-speed clutch, slow down the slip speed, inside and outside fitter can quickly slip on or card deduction, wellhead personnel quickly left the wellhead; and then remove the total car clutch until the drill speed slowed down while closing the high , Low-speed clutch, brake control system after a good control of drilling tools.

2) Drilling broken in the drilling What is the phenomenon? How to judge? How to deal with?

The phenomenon is:

Refers to the heavy table hanging down, pump down;

Wheel load reduced

Put on the change after the release.

Judgment method:

Put on the drill check refers to the heavy table hanging weight;

Check the pump is working properly, the pump pressure gauge is normal;

Check the other party.

Approach:

Immediately start drilling, fishing tools and measures selected according to the situation of the fish.

3) Drilling into the dial clutch, dial turntable is why? How to deal with?

First, the formation collapsed, but also a large rock debris collapse (such as drilling to the fault surface, fracture development, stratigraphic fracture zone, etc.); second drill dry drilling or mud package;

Third, all the drill cone stuck or broken blades;

Fourth, downhole material (such as the former falling objects crowded in the well wall to fall again);

Fifth, downhole friction resistance.

Approach:

First determine whether the drill bit is normal, if the dry drill, lift the drill to lift the repeated scribing, the other with light pressure drill to determine the bit situation, such as continue to hold the drill should immediately drill check;

Secondly, according to the formation reports, back-cuttings and other analysis of the site of the collapse and the extent of well collapse, take effective measures to pay special attention to prevent stuck, if the downhole frictional resistance to join the crude oil or lubricant.