MRING tunneling casing drilling ring bits are engineered for concentric casing drilling systems, featuring a ring bit design that operates independently from the casing shoe. The specialized DTH bit profile allows seamless passage through the ring bit's large inner diameter.

Product Category: Concentric Casing Drilling System

Matched Hammer: DHD380

Matched Casing Pipe OD: 273mm

To place an order, please provide the following specifications:

• Casing Tube OD & ID
• Ring Bit Diameter
• Hammer Shank Type
• Maximal Normal Bit Diameter
• Casings and Casing Shoes Installation Method (if threaded, specify thread standard)

Custom MRING system sizes are available upon customer request to meet specific project requirements.

Casing is a large diameter pipe assembled and inserted into a recently drilled borehole section. Similar to spinal bones protecting the spinal cord, casing is set inside the drilled borehole to protect and support the wellstream infrastructure.

In petroleum systems, overburden rock overlies source rock and contributes to thermal maturation through increased temperatures at greater depths. The age and thickness of overburden rock determine burial rates and influence heating processes.

Maximum lengths and hole diameters are determined by project-specific geotechnical conditions. The effective outside range for heavy rig horizontal directional drilling extends up to 3,000 meters.