114mm 4 1/2" remet double-wall pole reverse circulation

Product Description:

The high-pressure air and the gas pipe are transported to somewhere in the well. The high-pressure air and liquid are injected into the pipe through the mixer. Because the density of the mixed liquid is lower than that of the flushing liquid, the pressure difference between the pipe and the sample pipe causes the mixed gas and liquid to flow in the liquid. Under the action of the column pressure, it flows upward rapidly, and the cuttings particles are continuously brought out from the bottom of the hole to the ground. This drilling method has the advantages of high drilling speed, good hole quality, and less hole collapse in loose formations.

Double wall drill pipe

Drill pipe usage notes:

1. Before connecting the new drill pipe, apply thread oil on the threads
2. Trim and break at least 3 times before drilling
3. Hard bending and plastic coating can be processed according to the special requirements of customers.

FAQ

Q: Are you trading company or manufacturer ?
A: We are factory.

Q: How long is your delivery time?
A: Generally it is 7-30 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample need to pay the cost of products and freight.

Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.