| Customization: | Available |
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| Certification: | ISO 9001:2000, ISO 9001:2008 |
| Power Source: | Hydraulic |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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8 inch API 7 Silick drill collar BV inspected 1, Material 4145H API 7 Standard
2,Reliable Quality with competitive price
3,Avaliable in stocks if not byg quantities
Our Drilling Collars was developed to provide a gradual transition from the drill collars to the drill collar This drill collar helps to prevent stress concentration at the top of the drill collar.It also allow drilling at higher rpms, reducing torque and differential pressure sticking. The HWDP is intended primarily for directional drilling. As it bends easily, it simplifies directional control and minimizes connection fatigue problems common to high-angle or horizontal drilling. The reduced number of pipe failures and increased drill-stem service also make HWDP appropriate for some straight-hole applications. Various combinations of HWDP, drill collars, and standard drill string can be created to meet the challenge of severe drilling conditions.
We can supply integral HWDP from 2-7/8" to 9". Also we can supply friction welded HWDP, which is assembled with AISI 1340 steel pipe and AISI 4145H or 4137H tool joints.
1. We have complete quality management system. All production is carried out stringently in accordance with quality management system. We were API and QHSE certified.
2. We are provided with complete testing equipments for magnetic powder inspection, ultrasonic inspection, rigidity inspection, ultrasonic wall thickness inspection, etc.
3. We also have complete experiment facilities undertaking experiments like stretching, impacting, bending, hardness, chemical components and crystal phase.
4. All the staffs in charge of inspection and experiment are trained and qualified. They all have the qualification certificates issued by inspection authorities. For all users, no matter for choosing our products or receiving or using our products, our company makes the following promise:
1. Quality Guaranntee:
1.1 We set up our quality management system according to GB/T19001-2000 and API standards, and keep the system functioning efficiently and constantly improve our quality.
1.2 We make the products exactly as per the criteria, specifications and technologies stipulated in the contract and agreement. We guarantee our products are 100 per cent qualified to meet users' needs.
2. Service Pledges:
We shall reply to you within 24 hours after receiving your complaints or service requirements.
We appreciate customers' support and help to our company. We shall continue focusing on product quality and pay back the widespread users with our top products and services. Welcome to visit Dongying Seaco OIlfield Equip.CO!
|
Type |
5LZ73 7.0 |
5LZ89 7.0 |
5LZ95 7.0 |
7LZ95 3.5 |
9LZ95 7.0 |
5LZ120 7.0 |
|
|
Hole Size |
Mm |
95~121 |
114~152 |
118~152 |
118~152 |
118~152 |
149~200 |
|
In |
33/4~43/4 |
41/2~6 |
45/8~6 |
45/8~6 |
45/8~6 |
57/8~77/8 |
|
|
Thread Type |
Top |
23/8"REG |
23/8"REG |
27/8"REG |
27/8"TBG |
27/8"REG |
31/2"REG |
|
Bottom |
23/8"REG |
23/8"REG |
27/8"REG |
27/8"REG |
27/8"REG |
31/2"REG |
|
|
Nozzle pressure drop |
Mpa |
1.4~7 |
1.4~7 |
1.4~7 |
1.4~3.5 |
1.4~7 |
1.4~7 |
|
Recommend Flow |
L/S |
3~8 |
3~8 |
7~12 |
7~11 |
6~10 |
9~14 |
|
Bit rotary |
R/Min |
109~291 |
95~200 |
90~195 |
120~240 |
90~200 |
95~200 |
|
Motor pressure drop |
Mpa |
2.4 |
2.4 |
3.2 |
2.4 |
2.4 |
3.2 |
|
Working torque |
N.M |
460 |
628~838 |
1260~1630 |
723~960 |
750~1020 |
1480~1820 |
|
Lagging torque |
N.M |
650 |
1300 |
2200 |
1500 |
1550 |
2440 |
|
Output power |
KW |
4.7~12.5 |
7.3~15.3 |
13.6~29.5 |
18~24 |
8.3~18.5 |
16.4~34.5 |
|
Recommended bit weight |
T |
4.7~12.5 |
2.0 |
2.5 |
1.0 |
2.5 |
3 |
|
Max bit weight |
T |
2.5 |
3.0 |
5 |
1.5 |
5 |
5 |
|
Length |
Straight |
3450 |
3570 |
4450 |
2500 |
3590 |
5085 |
|
Single curve |
3450 |
|
4675 |
|
3590 |
5335 |
|
|
Weight |
Straight |
100 |
98 |
140 |
89 |
120 |
390 |
|
Single curve |
102 |
|
150 |
|
120 |
420 |
|
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