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9 7/8'' IADC 737 Three Conical Roller Chisel Bit for Drilling Hard Rock

tricone bit ,drilling bit ,rock bit,drill bit

Model:
737
Brand:
HJ
Min. Order:
1
Port:
TIANJIN
Production Capacity:
1000
Payment Terms:
T/T
Customized:
available
Standard:
API
Usage:
well drilling
Condition:
new

Availability:

Quantity:



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Product Description

Introduction

TCI tricone bit, full name Tungsten Carbide Insert Tricone Bit.

It is one main type of rotary tricone drill bit. Hard tungsten carbide inserts are pressed into pre-machined holes on three cones. While drilling, the carbide inserts impact, crush and shear rock formations.

IADC 737 is a heavy-duty TCI (Tungsten Carbide Insert) tricone bit.

It adopts dense spherical tungsten carbide inserts pressed into cones. Under weight-on-bit and rotation, inserts continuously impact, crush hard rock. Equipped with sealed journal bearing system for long service life under high WOB.

Manufactured strictly in accordance with API Spec 7-1, standard API REG thread connections.

Features

Spherical tungsten carbide inserts
Short, densely arranged spherical buttons, strong anti-chipping performance, resist heavy impact and abrasion.
Sealed journal bearing
Pressure-balanced seal system, stable lubrication, suitable for high weight-on-bit drilling.
Enhanced gauge protection
Extra gauge inserts & shirttail hardfacing, maintain hole diameter and prevent undergauge.
Optimized hydraulic design
Multi-nozzle configuration to clean cuttings efficiently and cool cones.
Wide size availability
Covers common sizes: 6", 6½", 7⅞", 8½", 9⅝", 9⅞", 12¼",14 3/4'' ,15 1/2'', 16 1/2'', 17 1/2'', 20'' ,22'' etc.

Application Industries

(1) Oil & Gas Drilling

Surface hole and intermediate section drilling of onshore oil and gas wells
Shallow offshore well drilling
Directional well and horizontal well kick-off sections
Exploration appraisal wells

(2) Water Well & Geothermal Drilling

Civil water wells, agricultural irrigation wells
Deep geothermal heating wells
Ground source heat pump boreholes

(3) Mining Drilling

Open-pit mine blast hole drilling
Underground mine exploration boreholes
Ore body delineation drilling

(4) Foundation & Construction Engineering

Piling boreholes for bridges, buildings, viaducts
Slope stabilization anchor hole drilling
Foundation pit exploration drilling

(5) Geological Exploration

Regional geological survey drilling
Mineral resource prospecting boreholes

Brief Comparison: Steel Tooth VS TCI Tricone Bit

Item	Steel Tooth (Milled Tooth)	TCI Tricone Bit
Cutting part	Teeth milled from cone body	Pressed tungsten carbide inserts
Dominant action	Scraping & shearing	Impact crushing
Best strata	Soft ~ medium, low abrasion	Medium-hard ~ hard, abrasive rock
ROP	Higher in soft plastic formations	Lower in soft strata
Unit cost	Lower	Higher