الوصف
TCI
tricone bit
1.high toughness
2.high durability
3.covers almost all IADC code
1.
It has rolling sealed bearing structure. The cylinder rolling
element is placed within the groove of roller cone, thus enlarging
the journal size and ensuring a better performance of roller
bit.
2. The secondary
surface of thrust bearing of roller bit has been handled with
antifriction and hardening treatment so as to decrease the
frictional force of bit for protecting its hardening
resistance.
3. The roller
bit uses new type lubricating grease which can bear the high
temperature of **0°C and boasts abrasion resistance.
4. The full
rubber oil reservoir uses limitable differential pressure and can
prevent drilling fluid from entering lubricating system so as to
provide qualified lubrication for bearing system.
The roller bit
is a kind of decelerating kit, so that the rotation speed of roller
cone is smaller than bit. The roller bit is mainly used to scrape
broken rocks, suitable for various small-hole drilling operation
such as old well`s window sidetracking and deepening under the high
rotation speed and high bit pressure. Therefore it plays an
important role in well drilling. The advantage is that it has
extensive application fields. It can be used not only in well
sidetracking but also in medium and deep well, showing superiority
in well drilling operation. The roller bit has smaller operating
torque than PDC bit under the same bit pressure and stratum, so
that it can reduce expansion of small-size drilling tool to avoid
drilling troubles. The roller bit combines advantages of tricone
bit and PDC bit and avoids the defects of them, so that it not only
can be more suitable for the operation in stratum of high intensity
and plasticity than tricone bit but also is suitable for the
operation in hard interlayer and other complex stratum where PDC
bit is not suitable.
|
Size
|
Bit
Type
|
|
In.
|
mm
|
|
6
|
**2.4
|
**7,
**7, **7, **7
|
|
6
1/2
|
**5.1
|
**7,
**7
|
|
7
7/8
|
**0
|
**7,
**7, **7, **7, **7, **7
|
|
8
1/2
|
**5.9
|
**7,
**7, **7, **7, **7, **7, **7
|
|
9
1/2
|
**1.3
|
**7,
**7, **7, **7, **7
|
|
9
5/8
|
**4.5
|
**7,
**7, **7, **7, **7
|
|
9
7/8
|
**0.8
|
**7,
**7, **7, **7, **7
|
|
*2
1/4
|
**1.1
|
**7,
**7, **7, **7, **7, **7
|
|
*7
1/2
|
**4.5
|
**7,
**7, **7, **7, **7
|
| بلد: |
China |
| نموذج رقم: |
Sell 17 1/2
|
| سعر فوب: |
125 / Piece (قابل للتفاوض)
أحصل على آخر سعر
|
| الموقع: |
china |
| سعر الحد الأدنى للطلب: |
125 per Piece |
| الحد الأدني للطلب: |
- |
| تفاصيل التغليف: |
wooden packing |
| موعد التسليم: |
10 days |
| القدرة على التوريد: |
- |
| نوع الدفع: |
- |
| مجموعة المنتج : |
- |
