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Tricone Roller Cone Drill Bits
Drilling Bits
Soft formations
Soft and soft sticky-Highly drillable formations such as clay, marl, gumbo and unconsolidated sands. Soft-medium-Low compressive strength sands, shales and anhydrites with hard layers intermixed.
Medium formations
Medium-Moderate compressive strength sand, chalk, anhydrite and shale. Medium hard-Higher compressive strength with non or semi-sharp sand, shale, lime and anhydrite.
Hard formations
Hard-High compressive strength with sharp layers of sand or siltstone. Extremely hard-Dense and sharp formations such as quartzite and volcanic rock.
Minimize wear on cutting structure
A broad range of drill bits designed to withstand high temperatures, long run time, and very soft or ultrahard formations.
FH Tungsten Carbide Insert Drill Bits
Overview:
Roller cone bits with optimal cutting structures
FH tungsten carbide insert (TCI) drill bits combine high ROP with durability and reliability, providing superior performance for drilling operations. With patented insert and cutter geometries, along with proprietary carbide materials, these roller cone bits offer many cutting structures that allow maximum mechanical energy to be applied to the formation.
Drillbit reliability
To ensure the reliability of FH TCI bits, silver-plated bearings are used to reduce friction, extend bearing life, and resist wear and extreme load forces for longer periods of time compared with conventional bearings. FH bits also include a bullet-shaped seal designed with extensive finite element analysis (FEA) modeling. The seal has dual-material elastomers that protect the bearing and make FH bits highly reliable.
Gauge retention and bottomhole cleaning
Between the primary gauge inserts, binary carbide gauge places have resistant, semiround top carbide inserts to enhance gauge retention. This feature makes gauges more durable while allowing longer in-gauge bit runs. And to maximize bottomhole cleaning, the V-Flo vectored flow configuration directs nozzles to the leading side of the following bit cone, resulting in upward spiral flow. This flow not only cleans, it also prevents bit balling and allows for maximum ROP.
Features:
| TD Feature Diamond-Enhanced Trucut Gauge Protection |
|
Feature: |
Diamond-enhanced,semiround-top, on-gauge inserts provide the finish cut-to-gauge for Trucut drill bit gauge system. Off-gauge inserts are made of tungsten carbide. |
Advantage: |
Suitable for more abrasive environments; more durable than standardTrucut gauge configuration. |
Benefit: |
Extended bit-gauge life results in long intervals of quality, in-gauge borehole. |
| SD Feature Shaped Diamond-Enhanced Gauge Inserts |
|
Feature: |
100% shaped diamond-enhanced gauge inserts. |
Advantage: |
Shaped geometry creates a more aggressive cutting structure. |
Benefit: |
Maximum ROP and high-quality, in-gauge borehole for the longest possible intervals in highly abrasive environments. |
| D Feature Diamond-Enhanced Gauge Row Inserts Inserts |
|
Feature: |
Diamond-enhanced gauge inserts. |
Advantage: |
Significantly lower gauge-row wear and breakage rates, and greater wear-resistance in highly abrasive applications. |
Benefit: |
High-quality, full-gauge wellbore over significantly longer intervals compared with tungsten carbide gauge inserts. |
| B Feature Binary Gauge Protection |
|
Feature: |
Small, semiround-top inserts positioned between primary gauge inserts. |
Advantage: |
Smaller inserts improve wear resistance. |
Benefit: |
Improved bit-gauge durability and longer, in-gauge bit runs. |
| BD Feature Diamond-Enhanced Insert Binary Gauge Protection |
|
Feature: |
Diamond-enhanced, semiround top inserts positioned between primary gauge inserts. |
Advantage: |
Extreme wear resistance. |
Benefit: |
Improved bit-gauge durability and longer, in-gauge bit runs. |
| T Feature Tungsten Carbide Trucut Gauge Protection |
|
Feature: |
TCI protection for Trucut drill bit gauge system. |
Advantage: |
Improved gauge durability and integrity with a twin gauge-insert system composed of aggressive, near gauge inserts to drill the near-gauge and borehole corner with reduced scraping action, and semiround top, on-gauge inserts that provide the finish cut to gauge; significantly reduced stress on gauge inserts. |
Benefit: |
Extended bit-gauge life for long intervals of quality, in gauge borehole. |
| OD Feature Diamond-Enhanced Heel Row Inserts |
|
Feature: |
Up to 50% diamond-enhanced heel row inserts. |
Advantage: |
Improved resistance to abrasive wear and impact damage; protection for the lower leg and bearing seal areas. |
Benefit: |
Longer gauge-cutting-structure life for long intervals of high-quality, full-gauge borehole. |
| OD1 Feature All Heel Row Inserts Diamond Enhanced |
|
Feature: |
51%–100% diamond-enhanced heel row inserts. |
Advantage: |
The heel cutting structure is designed for the most abrasive environments, resulting in a longer gauge-cutting-structure life, and Protection for the lower leg and bearing-seal areas. |
Benefit: |
Benefit: Longer intervals of high-quality, full-gauge borehole in highly abrasive, high compressive strength formations. |
| DD Feature 100% Diamond-Enhanced Cutting Structure |
|
Feature: |
100% diamond-enhanced cutting structure. |
Advantage: |
Premium cutting structure for drilling very abrasive formations efficiently, with longer runs and lower weight on bit (WOB). |
Benefit: |
Premium cutting structure for drilling very abrasive formations efficiently,with longer runs and lower weight on bit (WOB). |
| G Feature Super D-Gun Cone Protection |
|
Feature: |
Super D-Gun tungsten carbide cone protection. |
Advantage: |
A hard, tungsten-carbide-based coating applied to cone shells makes them unusually resistant to abrasion and erosion. This feature is ideal for highly |
Benefit: |
Increased bit life, longer bit runs, and improved insert retention. |
| Y Feature Conical Shaped Inserts |
|
Feature: |
Conical shaped inserts. |
Advantage: |
Geometry optimized to reduce insert breakage. |
Benefit: |
High ROP in formations which are sensitive to weight on bit (WOB). |
| V Feature V-Flo Nozzle Configuration |
|
Feature: |
V-Flo vectored-flow nozzle configuration. |
Advantage: |
Jets are directed at the leading side of the following cone for maximum cleaning; enhanced bottom hole cleaning is achieved through efficient cuttings lift and establishment of a strong, upward, helical flow. |
Benefit: |
A clean cutting structure in soft and sticky formations. |
| VE Feature Extended Vectored Nozzle Sleeve (Available for 12 1/4-in and larger bits) |
|
Feature: |
Extended vectored nozzle sleeve. |
Advantage: |
The angles of the nozzles are precisely oriented to direct fluid flow tothe leading edge of the cones, resulting in the most efficient cleaning. |
Benefit: |
Clean cutting structure, and maximum ROP through higher impingement pressure. |
| J3 Feature (Dome Jets)(Available for 16-in and larger bits) |
|
Feature: |
Three nozzles located inboard of conventional roller cone nozzle positions. |
Advantage: |
Flow is directed toward the intermesh area between the cones to enhance cone cleaning. |
Benefit: |
Increased cone cleaning to prevent bit balling and maximize ROP. |
| C FeatureCenter Jet |
|
Feature: |
Center jet installed. |
Advantage: |
Enhanced cone cleaning and hydraulic flow patterns across the bit cutting structure. |
Benefit: |
Clean, efficient cutting structure in high-cuttings-volume or sticky formations. |
| L Feature Lug-Type Leg Back Protection |
|
Feature: |
Shaped steel-pads welded to the upper leg back, with flush-set tungsten carbide or shaped diamond-enhanced inserts. |
Advantage: |
Leg protection and bit stabilization; helps prevent bit whirl and differential wear between bit legs, which can overload individual cone cutting structures and bearings. |
Benefit: |
High quality wellbore and extended bit life. |
| R Feature Semiround-Top (SRT) TCI Stabilization & Leg Back Protection |
|
Feature: |
Stabilizing leg back protection. |
Advantage: |
Cluster of SRT tungsten carbide inserts, located on the upper leg section and extending to near full-gauge, enhance wear protection and improve bit stability. |
Benefit: |
Extended bit life and improved borehole quality. |
| PS Feature Semiround-Top (SRT) TCI Leg Back Protection |
|
Feature: |
Leg back protection. |
Advantage: |
Strategically placed, SRT tungsten carbide inserts improve leg protection against wear; tight, overlapping pattern helps prevent grooving of leg backs. |
Benefit: |
Extended bit life in abrasive environments. |
| PD Feature Diamond-Enhanced Leg Back Protection |
|
Feature: |
Diamond-enhanced leg back protection. |
Advantage: |
Strategically placed, SRT, diamond-enhanced and tungsten carbide inserts improve leg protection against wear; tight, overlapping pattern helps prevent |
Benefit: |
Extended bit life in extremely abrasive environments. |
Available sizes:
Available Tri cone Roller Cone Drill Bits sizes | |
inch |
mm |
7 1/2 |
190.5 |
7 5/8 |
193.675 |
7 7/8 |
200.025 |
8 1/4 |
209.55 |
8 1/2 |
215.9 |
8 3/4 |
222.25 |
9 1/4 |
234.95 |
9 1/2 |
241.3 |
9 7/8 |
250.825 |
10 5/8 |
269.875 |
12 1/4 |
311.15 |
Any special sizes will be available by requests.
ROSCHEN GROUP is professional in manufacturing and supplying quality tricone drill bit as one of the leading manufacturers and suppliers in China. We now bring you high quality tricone drill bit for sale, competitive in its excellent performance and high precision. Please rest assured to buy.
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