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Spiral Drill Collar
A spiral drill collar is a type of heavy steel collar that is used in drilling operations. It is designed to provide weight on the drill bit, which helps to keep it in contact with the formation being drilled and improve the efficiency of the drilling process.
The spiral design helps to reduce torque and drag on the drill string, making it easier to rotate and move the drill bit through the formation. Spiral drill collars are typically made from high-strength alloy steel and can weigh several thousand pounds. They are an important component of the drill string used in oil and gas exploration and production.
Description
China Vigor Drilling Oil Tools And Equipment Co., Ltd. is one of the most professional manufacturers and suppliers of spiral drill collar in China, featured by competitive price and fast delivery. Welcome to buy high quality spiral drill collar in stock here from our factory.
A spiral drill collar is a type of heavy steel collar that is used in drilling operations. It is designed to provide weight on the drill bit, which helps to keep it in contact with the formation being drilled and improves the efficiency of the drilling process.
Why Choose Vigor's Spiral Drill Collar?
(1)It is designed with a helical groove or spiral pattern on its outer surface, which has a dual effect :
On the one hand, The spiral design helps to reduce torque and drag on the drill string, making it easier to rotate and move the drill bit through the formation.
On the other hand, it imparts a rotational motion to the drill string as it is rotated by the drilling rig. This rotational motion helps to improve drilling efficiency, borehole quality, and directional control.
(2) Spiral drill collars are typically made from high-strength alloy steel and can weigh several thousand pounds.
Technical parameters
|
O.D. |
I.D. |
Length mm |
Style of connection |
Bevel diameter mm |
Bending strength ratio |
||
|
mm |
In. |
mm |
In. |
||||
|
79.4 |
3-1/8 |
31.8 |
1 1/4 |
9150 |
NC23-31 |
76.2 |
2.57:1 |
|
88.9 |
3-1/2 |
38.1 |
1 1/2 |
9150 |
NC26-35(23/8IF) |
82.9 |
2.42:1 |
|
104.8 |
4-1/8 |
50.8 |
2 |
9150 |
NC31-41(27/8IF) |
100.4 |
2.43:1 |
|
120.7 |
4-3/4 |
50.8 |
2 |
9150 |
NC35-47 |
114.7 |
2.58:1 |
|
127.0 |
5 |
57.2 |
2 1/4 |
9150 |
NC3850(31/2IF) |
121.0 |
2.38:1 |
|
152.4 |
6 |
57.2 |
2 1/4 |
9150or9450 |
NC44-60 |
144.5 |
2.49:1 |
|
158.8 |
6-1/4 |
57.2 |
2 1/4 |
9150or9450 |
NC44-62 |
149.2 |
2.91:1 |
|
158.8 |
6-1/4 |
71.4 |
2 13/16 |
9150or9450 |
NC46-62(4IF) |
150.0 |
2.63:1 |
|
165.1 |
6-1/2 |
57.2 |
2 1/4 |
9150or9450 |
NC46-65(4IF) |
154.8 |
2.76:1 |
|
165.1 |
6-1/2 |
71.4 |
2 13/16 |
9150or9450 |
NC46-65(4IF) |
154.8 |
3.05:1 |
|
171.4 |
6-3/4 |
57.2 |
2 1/4 |
9150or9450 |
NC46-67(4IF) |
159.5 |
3.18:1 |
|
171.4 |
6-3/4 |
71.4 |
2 13/16 |
9150or9450 |
NC50-67(41/2IF) |
159.5 |
2.37:1 |
|
177.8 |
7 |
57.2 |
2 1/4 |
9150or9450 |
NC50-70(41/2IF) |
164.7 |
2.54:1 |
|
177.8 |
7 |
71.4 |
2 13/16 |
9150or9450 |
NC50-70(41/2IF) |
164.7 |
2.73:1 |
|
184.2 |
7-1/4 |
71.4 |
2 13/16 |
9150or9450 |
NC50-72(41/2IF) |
169.5 |
3.12:1 |
|
196.8 |
7-3/4 |
71.4 |
2 13/16 |
9150or9450 |
NC50-77 |
185.3 |
2.70:1 |
|
203.2 |
8 |
71.4 |
2 13/16 |
9150or9450 |
NC50-80 |
190.1 |
3.02:1 |
|
209.6 |
8-1/4 |
71.4 |
2 13/16 |
9150or9450 |
6 5/8REG |
195.7 |
2.93:1 |
|
228.6 |
9 |
71.4 |
2 13/16 |
9150or9450 |
NC61-90 |
212.7 |
3.17:1 |
|
241.3 |
9-1/2 |
76.2 |
3 |
9150or9450 |
7 5/8REG |
223.8 |
2.81:1 |
|
247.6 |
9-3/4 |
76.2 |
3 |
9150or9450 |
NC70-97 |
232.6 |
2.57:1 |
|
254.0 |
10 |
76.2 |
3 |
9150or9450 |
NC70-100 |
237.3 |
2.81:1 |
|
279.4 |
11 |
76.2 |
3 |
9150or9450 |
8 5/8REG |
266.7 |
2.84:1 |
※Spiral Drill Collar can be customized as per the customer's design.
Function
Vigor's drill collar can prevent the differential pressure of the drilling tool from being blocked during the drilling process, and the spiral groove can allow the mud to flow freely around the drill collar to balance the pressure and prevent the formation of blockage, thereby effectively preventing the occurrence of differential pressure sticking.
It can reduce the contact area with the borehole wall, which can effectively reduce the possibility of differential pressure block. The reason why spiral drill collars are widely used is because of their own characteristics. This special drill collar can reduce the contact area between the well wall and the pipe body, thereby avoiding the jamming of a drilling tool. Its weight is 4~6% less than the weight of the round drill collar. It is an effective anti-deflection drilling tool. It can also correct the tilt by using higher drilling pressure in the inclined area.
Benefits
(1) Enhanced Directional Control: The spiral groove on the drill collar generates a rotating force that helps to steer the drill bit in the desired direction. This is particularly useful in directional drilling applications, where the wellbore needs to be deviated from the vertical to reach the target reservoir.
(2) Improved Hole Cleaning: The spiral groove also promotes efficient hole cleaning by creating a vortex effect that helps to carry cuttings away from the drill bit. This reduces the risk of cuttings accumulation, which can lead to problems such as stuck pipe and poor borehole quality.
(3) Reduced Torque and Drag: The spiral groove helps to reduce torque and drag on the drill string, which can be a significant issue in deep and extended-reach wells. This reduction in torque and drag can lead to improved drilling performance and reduced wear and tear on the drill string components.
(4) Extended Bit Life: It can help to extend the life of the drill bit by reducing the amount of lateral vibration experienced by the bit. This is because the spiral groove helps to stabilize the drill string and minimize lateral movement.
application
- Directional drilling
- Horizontal drilling
- Extended-reach drilling
- Slim-hole drilling
- High-angle drilling
- Deviated drilling
- Challenging wellbore conditions, such as hard formations, abrasive formations, and unstable formations
Products photos
At Vigor, we believe that by approaching every aspect of our work with diligence and dedication, we can deliver products and services that exceed our customers' expectations and showcase our company's values and principles.
If you have any interest in Vigor's products for the oil and gas industry, we encourage you to reach out to us without hesitation. We are here and ready to assist you with any inquiries or requests you may have.
When procuring spiral drill collars, it is important to consider the following factors:
(1) Quality and Reputation of the Manufacturer: VIGOR implements the ISO9001 Quality Management System and the standards of the API Petroleum Association.
(2) Technical Specifications: VIGOR has made many breakthroughs in new materials and high-tech products, and developed, and manufactured new products for oil well fracturing.
(3) After-Sales Support: Vigor always believes that good customer service is an important foundation for our survival, so Vigor will also treat every customer with the best service in the future.
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