Recommended rock formation: hard formation with high abrasiveness, such as hard limestone, dolomite, hard sandstone, etc.
Category:
- 产品描述
15 inch IADC837 TCI tricone bit
-
- Commodity name: 15 inch IADC837 TCI tricone bit
<span>Application:</span>water well,oil well,geological,geothermal drilling,etc <br /> <span>Recommended rock formation: </span>hard formation with high abrasiveness, such as hard limestone, dolomite, hard sandstone, etc.
PRODUCT SPECIFICATIONS
product name 15 inch IADC837 TCI tricone bit size 15 inch,381mm model number IADC837 tooth type tungsten carbide insert connection 7 5/8" Reg pin bearing rubber sealed journal bearing Nozzle three jet holes application water well,oil well,geological,geothermal drilling,etc weight 175kg certificate SY/T5164,ISO9001:2008 RECOMMENDED ROCK FORMATION hard formation with high abrasiveness, such as hard limestone, dolomite, hard sandstone, etc. RECOMMENDED DRILLING PARAMETERS FOR APPLICATION
Type&IADC code 417 437 447 517,527 537,547 617,627 637,647 737,837 WOB(KN/mm) 0.35~0.90 0.35~0.95 0.35~1.00 0.35~1.05 0.35~1.05 0.35~1.05 0.70~1.20 0.70~1.20 RPM(r/min) 140~70 140~60 140~60 120~50 110~40 80~40 70~40 70~40 Tricone bit drilling
"In some formations, it is advantageous to design the cones and their configuration so that they do not rotate evenly but that they slip during rotation. This Cone slippage, as it is called, allows a rock bit to drill using a scraping action, as well as the normal grinding or crushing action.
Cone slippage can be designed into the bit in two ways. Since cones have two profiles: the inner and the outer cone profile, a cone removed from the bit and placed on a horizontal surface can take up two positions . It may either roll about the heel cone or the nose cone. When the cone is mounted on a journal it is forced to rotate around the centre of the bit. This “unnatural” turning motion forces the inner cone to scrape and the outer cone to gouge. Gouging and scraping help to break up the rock in a soft formation but are not so effective in harder formations, where teeth wear is excessive.
Cone slippage can also be attained by offsetting the axes of the cones. This is often used in soft formation bits . To achieve an offset the journals must be angled slightly away from the centre. Hard formation bits have little or no offset to minimise slippage and rely on grinding and crushing action alone."
Hebei Crossing Drill Bit Manufacture CO.,LTD is a professional supplier of drilling tools,including tricone bit,PDC tricone bit,Hole opener,single cone bit and so on.With years of study and refining of the introduced technology, we have succeeded in the field of product research with proprietary intellectual property rights.Also, we have made major breakthrough in the lines of analogue simulation in bottom-hole flow field,profile optimization,design of inserts arrangement and low torque,material and manufacturing techniques etc. As a result, our products own better characters of service and ranges of application.Mainly used for oil and gas,mining,geothermal,construction and so on.
The products of our company have achieved industrialization and serialization.Besides our company has always laying importance on the technical exchanges and cooperation with the counterparts both at home and abroad.Our products have been sold all over the world, including the United States, England,Canada,Brazil,Italy,Saudi Arabia,Korea, India, and Poland and so on.
Main products
tricone bit(mill tooth and tungsten carbide insert tricone bit)
PDC bit(matrix body and steel body PDC bit)
hole opener(HDD rock reamer,barrel reamer,fluted reamer,etc)
drag bit(step drag bit,PDC drag bit,chevron drag bit,etc)
accessories(roller cone,bit breaker,ring gauge,nozzle ,etc)
Milled tooth tricone bits
1, Soft formations ( IADC 114 - 117 )
These bits are designed to drill the softest formations such as soft shales,red beds, and clays, with high durability and maximum penetration rates.2, Soft to medium formations( IADC 121,124,126,134,136,137 )
These bits are designed to drill formations such as shales, medium soft limestone, Medium sandstone and other formations with intermittent hard streaks.3, Medium to medium hard formations ( IADC 213,214,215,217)
These bits are designed to drill formations such as hard sandstone, dolomite, and broken formations with hard cherty streaks4. Hard formations(IADC 317, 337)
These bits are designed to drill formations such as hard limestone, dolomite, hard sandstone and chert, etc.
Key words:- 15 inch IADC837 TCI tricone bit
Products Inquiry
