How to remove the broken drilling pipe?

In drilling operations, drill pipe plays a key role. However, when the drill pipe breaks or becomes stuck in the well and cannot be taken out, it will cause great trouble to the drilling operation. Next, let’s take a look at the specific treatment methods for drilling drill pipe fractures.

Reasons for drill pipe breakage:

Drill pipe fracture is caused by long-term use or wear of the lock groove and cone ring during use, resulting in insufficient strength of the rod body. In addition, unreasonable operation can also cause the drill pipe to break.

Drill pipe fracture treatment plan:
1) Safety measures
Once the drill pipe breaks, the drilling rig must be stopped immediately and the spindle power and electric winch power must be cut off to ensure site safety. Before carrying out demolition work, certain safety and protective measures need to be taken.

2) Disassembly method
1. If the drill pipe breaks underground, the drill pipe needs to be anchored with connecting rods or insert rods;
2. Use lock cutting pliers or cold hammer to remove the clamping parts and backstop on the broken rod;
3. Use lifting tools (such as hand jacks) to disassemble one by one;
4. "Pull" the drill pipe out of the fracture, then hydraulically clamp the drill pipe and make it move up and down until all the drill pipe is pulled out.

It should be noted that during the demolition process, the adhesiveness and looseness of the sediment must be considered. If there is adhesiveness, it needs to be flushed; if it is too loose, other drilling tools need to be used.

Precaution:
1. Optimize drill pipe
During drilling operations, the drill pipe can be optimized. Made of high-strength, high-wear-resistant materials to improve the durability of the drill pipe and reduce the probability of drill pipe breakage.

2. Strengthen inspections
During the drilling process, the wear degree of the drill pipe should be checked regularly and damaged drill pipe should be replaced in time to avoid drill pipe breakage.

The above are the treatment methods and preventive measures for drilling drill pipe breakage. I hope that everyone can avoid problems such as drill pipe breakage and stuck wells when performing drilling operations, and ensure the smooth progress of the operation.

Hunan Standard Steel Co., Ltd is a leading manufacturer and distributor of seamless steel pipe, welded steel pipe, OCTG products (casing pipe and drill pipe) and fittings. For more, pls contact: info@hu-steel.com