X-over sub for for conversion and connection of drill stem component in petroleum
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 set
- Supply Capability:
- 10000 set/month
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1.Xover sub acts for conversion and connection of drill stem component in petroleum, natural gas and geology drilling work. It is one of the main tools in connect the upper tool and the bottom Hole. It is used mainly for connecting of upper drill tools and lower drill tools during drilling operations when upper and lower buckle type failed to connect during drilling operation.
2.Features:
3. The basic structure of the X-over sub
Variety | name
| Upper link
| Lower link
| Type
|
1 |
| Kelly
| Drill pipe joints
| A or B A或B |
2 | drill pipe Cross-over sub
| Drill pipe joints
| Drill pipe joints
| A or B A或B |
3 | Transition Cross-over sub | Drill pipe joints
| drill collar
| A or B A或B |
4 | drill collar Cross-over sub
| drill collar
| drill collar
| A or B A或B |
5 | Borehole Cross-over sub
| drill collar
| drill collar
| A or B A或B |
6 | Faucet Cross-over sub
| Faucet
| Kelly bar
| C A或B |
7 | Salvaging Cross-over sub
| Kelly
|
| C
|
Drill pipe joints
| Fishing Tools
| C |
4.Pictures
5.FAQ
We have organized several common questions for our clients，may help you sincerely：
①How about your company？
A world class manufacturer & supplier of castings forging in carbon steel and alloy steel，is one of the large-scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirement.
②How to guarantee the quality of the products？
We have established the international advanced quality management system，every link from raw material to final product we have strict quality test；We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.
③How long can we receive the product after purchase?
In the purchase of product within three working days, We will arrange the factory delivery as soon as possible. The pecific time of receiving is related to the state and position of customers.Commonly 7 to 10 working days can be served.
- Q:1.6 of the two case K2 rear wheel bearings are the same as the other K2?
- I would like to ask whether you have seen bearing down bearing types and brands,
- Q:What model is used more? What are the prospects for development? Does the price have an advantage?
- Relatively speaking, the number of general, small and medium is relatively largeThe prospect is also OK, the domestic price has the absolute superiorityYou can consider to do the foreign trade in the bearing industry
- Q:Bearings radial, in addition to the location of contact with the box, there is no other way?
- 10, to prevent the bearing in axial load axial movement, bearings on the shaft and outside the Nanning hole are applied axial positioning device. Bearings on the shaft and the selection of the location of the shell depends on the size and direction of the load on the shaft, the speed of the bearing, the type of bearing, the position of the bearing on the shaft, etc.. The higher the axial load, the higher the bearing speed, the more reliable the axial alignment. For different types of bearings, axial positioning should also be different. Such as diagonal contact ball bearings and tapered roller bearings, shoulder and shell holes can be used to shoulder one-way support, without the use of special positioning device, the ring in the axial movement can be supported by the bearing itself. As a fixed support radial bearing, the inner and outer rings are fixed on the left support in the axial direction. As a traveling support that needs to compensate for the thermal elongation of the shaft, if a separable bearing is not installed, only one of the rings needs to be fixed, and the traveling ring is not fixed. Separate bearings, such as short cylindrical roller bearings and needle roller bearings, are installed in the traveling support, and all two rings need to be fixed. Bearing bearing ring used to positioning method is described as follows: 1. the bearing inner ring mounted on the shaft bearing inner ring, generally by the shaft in a fixed bearing position, and the other side with nuts and washers or spring retainer ring fixed.
- Q:when the ball bearings bear the equivalent dynamic load doubled, how will the bearing life changes? When other conditions are constant, how will the life of the bearing change when the speed of the ball bearing is doubled?
- When the other conditions are constant, the bearing life will be 0.125 times as much as the equivalent dynamic load suffered by the ball bearing. (0.5^3).When the other conditions are constant, the bearing life will be half of the original when the speed of the ball bearing is doubled.To read, ah, there are formulas, ha ha.
- Q:Is there any difference between plain bearings and other bearings?
- Bearings are nothing more than sliding bearings and rolling bearings, sliding bearings without moving coil, a shaft directly contact the shaft, the shaft will be worn, rolling bearings can roll the moving coil, and the shaft is connected, the shaft will not wear.
- Q:I need regular manufacturers' agents (with authorized certificates and large scale agents)
- I am Nanjing Yi million strong bearing Co., Ltd. (Jiangyin Office)I am mainly responsible for regional sales in Jiangyin, Zhangjiagang, Jingjiang and so onWe are regular dealers. Here are our certificate of authorization.
- Q:Are there any differences between bearings used on fans and other ordinary bearings?
- the fan usually has two ends adjustable heart or one end of the cylinder with diagonal contact at one end.
- Q:Compared with other bearings, what is the application performance of NSK Bearings?
- Yes, especially if the landlord is going to fill out the NSK Bearings bought by the company, especially good.
- Q:How can I solve this problem? FifteenOur motor is used in the submersible pump, the speed in the 3000 turn around /min, now excessive vibration occurs, or for a better quality of the bearing vibration is too large, please professional prawns, this is what reason? How to solve?
- It is estimated that the bearing clearance is too large to cause vibration. If the original pump work environment temperature of 20 degrees, now 5 degrees. When the thermal expansion of the bearing decreases and the clearance becomes larger, the vibration of the motor will be too large. It is suggested that the clearance bearings be selected according to the running temperature and speed of the motor.
- Q:Bearing, in addition to interference, excessive, gap three kinds of co-ordination, there are no other coordination?
- These three types of coordination, and other coordination is only a different individual name, but the actual situation is the same
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X-over sub for for conversion and connection of drill stem component in petroleum
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 set
- Supply Capability:
- 10000 set/month
OKorder Service Pledge
OKorder Financial Service
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