Product Details
9 5/8" FSA517GT , 244.5mm TCI Bit , Sealed Friction Bearing ,
Tricone Roller Bit , with Reinforced Gauge Protection
SIZE AVAILABLE
Form 3 7/8 inch to 36 inch
RECOMMENDED DRILLING PARAMETERS FOR APPLICATION
Types & IADC Code | 417 | 437 447 | 517 527 | 537 547 | 617 627 | 637 |
WOB | KN/mm(Bit Dia.) | 0.4~0.9 | 0.4~0.9 | 0.35~1.0 | 0.5~1.0 | 0.6~1.1 | 0.7~1.2 |
Lb/in. (Bit Dia.) | 2285~5142 | 2285~5142 | 2000~5714 | 2857~5714 | 3428~6285 | 4000~6857 |
Rotation Speed (Rpm) | 140~60 | 140~60 | 125~50 | 110~50 | 100~40 | 80~40 |
The above chart represents commonly available sizes and types, we
do produce other sizes and types of rock bits which do not appear
on this list. Please contact us for more information.
ROTARY SPEED
The ROP will also be affected by the rotary speed of the bit and an
optimum speed must be determined. The RPM influences the ROP
because the teeth must have time to penetrate and sweep the
cuttings into the hole. Figure 28 shows how ROP varies with RPM for
different formations. The non-linearity in hard formations is due
to the time required to break down rocks of higher compressive
strength. Experience plays a large part in selecting the correct
rotary speed in any given situation.
Company Profile
Hejian City Feilong Retop Rock Bit Manufacture Co., Ltd. is
established in 1992 and located in Hebei Province, China.
Integrated with Beijing Feilong International Trade Co., Ltd. and
Beijing Superior Drilling Equipment Co., Ltd. , the company has
involved into a comprehensive enterprise integrating production,
R&D and distribution of tricone bits, PDC bits, trenchless and
rotary drilling tools.
The company serves the customers in oil & gas drilling, mining,
exploration, HDD drilling and rotary drilling with covering a
complete product line.
The company covers an area of 36,000 square meter and has more than
200 employees, including more than 100 technicians. The company has
equipped with contemporary advanced processing equipment of
processing and detecting and testing instruments. The company has
obtained the certification of the quality system: ISO 9001, ISO
14001, OHSAS 18001 and mostly important API 7-1.
The company’s annual production of various drilling tools is over
10,000 sets, which exported to over 20 countries and regions. We, FeiLong ReTop ( FLRT ) are willing to cooperate with friends at home and abroad to make
joint development and contribute to global energy development and
urban infrastructure development.