TCI Tricone Drill Bit 8 1/2 inch IDAC Code 845 G with 4 1/2 regular
thread
Well drilling is the process of drilling a hole in the ground for
the extraction of a natural resource such as ground water, brine,
natural gas, or petroleum, for the injection of a fluid from
surface to a subsurface reservoir or for subsurface formations
evaluation or monitoring. Drilling for the exploration of the
nature of the material underground (for instance in search of
metallic ore) is best described as borehole drilling.
| TRICONE DRILL BITS - STANDARD CONNECTION SIZES * |
| SIZE | STANDARD PIN CONNECTION |
| 2 1/2" to 2 3/4" inclusive | A - AW Rod |
| 2 7/8" to 3 3/8" inclusive | N4 Rod |
| 3 1/2" to 4 1/2" inclusive | 2 3/8" API |
| 4 5/8" to 5" inclusive | 2 7/8" API |
| 5 1/8" to 7 3/8" inclusive | 3 1/2" API |
| 7 1/2" to 9 3/8" inclusive | 4 1/2" API |
| 9 1/2" to 14 3/8" inclusive | 6 5/8" API |
| 14 1/2" to 18 1/2" inclusive | 6 5/8" API or 7 5/8" API |
| 18 5/8" to 26" inclusive | 7 5/8" API or 8 5/8" API |
| 27" and larger | 8 5/8" API |
| *Tricone bits are available with alternative connection sizes on
request. |
Vertical Drill Bit
The earliest wells were water wells, shallow pits dug by hand in
regions where the water table approached the surface, usually with
masonry or wooden walls lining the interior to prevent collapse.
Modern drilling techniques utilize long drill shafts, producing
holes much narrower and deeper than could be produced by digging.
Well drilling can be done either manually or mechanically and the
nature of required equipment varies from extremely simple and cheap
to very sophisticated.
Managed Pressure Drilling (MPD) is defined by the International
Association of Drilling Contractors (IADC) as "an adaptive drilling
process used to more precisely control the annular pressure profile
throughout the wellbore." The objectives of MPD are "to ascertain
the downhole pressure environment limits and to manage the annular
hydraulic pressure profile accordingly."
FAQ
Quality warranty:
Our products are made of high quality steel and all spares parts
are inspected strictly before shipping. We have quickly responses
for your complaint and suggestion.
Package:
Using ply-wooden cases and pallet for package to protect the
products and avoid the damage during transportation. Also we can
customize package according to your special requests.
Production time:
Generally need 15-25 days
Transportation:
By air, By Express or By sea according to your requests.
1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight
2. Handling time for an order
Based on order quantity, normally it takes 20 days for production.
in 3 working days after receiving the advance payment
3. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or
by air
Bulk order: we suggest by air or by sea.
4. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before
shipping out.
5. After Services:
a. Our sales team will response for your question within 24 hours
(Holidays Excluded)
b. Technical Support will be available in any time
6. Quality & Service:
A. There will be strict inspection and testing for every order
before shipping out.
B. Our sales team and Technical Support will response for your
question within 24 hours
C. Free replacement will provide once the failure confirmed caused
or our product quality; Not satisfied with a refund.
For more information, please contact:
ROSCHEN HOLDINGS LIMITED
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
WeChat: +86-137 6419 5009 ; +86-135 8585 5390
WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
Email: roschen@roschen.com ; roschen@roschen.net
