What should be paid attention to when running casing during drilling?

Classification:

Industry dynamics

Release time:

2021-05-24

【Summary Description】 The main matters needing attention in casing running operation are divided into three parts: site, gate front and wellhead.

套管

LowerCasingOperationMain matters needing attention are divided into three parts: site, gate front and wellhead.

First,Venue:

1.Check whether the water hole of each casing is unblocked, whether the body is bent or crushed, and whether the screw thread and shoulder are damaged;2.Wipe the screw thread carefully and apply the oil to the screw thread, which cannot be wiped into half the sky;

3.Wear the casing hat carefully, and apply the silk protector well, and apply it with your hands, without buckling, in case it is difficult to remove due to loosening and deformation;

4.The hoisting rope sling shall be tied firmly;

5.If a crane is used to match the large-diameter casing, the male end shall be tied with a swimming rope to prevent disorderly swing after lifting;

6.Pay attention to the serial connection position of centralizer, back pressure vernel, magnetic positioning sub and grading hoop, and make no mistake when preparing for serial connection.

Second,In front of the gate:

1.Transverse blocking of a heald rope to reduceCasingSwing after getting on the drill floor;

2.Buckle the elevator carefully;

3.Make gestures or send signals to the driller clearly;

4.Be careful not to hurt people or damage other things when throwing thread protectors under the drill floor.

Third,Wellhead:

1.Carefully check the wellhead tools to ensure that they are flexible and easy to use;

2.During operation, prevent objects falling in the well or casing;

3.Cooperate with the driller and the personnel in front of the gate to open the elevator or lift the slips in time;

4.The number of rope turns shall not be too much, and no slippage shall prevail;

5.After pulling the buckle to the home, the rope should be loosened in time. Don't pull it violently with the anchor head, which is easy to burn the brown rope and dangerous;6.Pay attention to observation when pulling the anchor headCasingSwing, choose the time appropriate force, in case of pulling the wrong buckle;

7.To buckle according to the standard torque, neither loose, nor too tight, in order to prevent sliding buckle;

8.Insist on filling each root with drilling fluid and fill it in time according to regulations;

9.The operator on the righting platform should pay attention to cooperate with the operator at the wellhead.

Key words:

weilida drill