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:Isn't it the middle question or the other question? I'm looking for glfore to do the test. Did anyone do that?
- Possible in the middle. There may be other problems. You can try with them. Excellent
- Q:I feel different from other factories, ah, there is no pungent smell!
- Yes, they have a business manager named Feng Dawei. The business ability is very strong, you can find him
- Q:What's the bearing fillet of the 7003C? Do other bearings have the same fillet?
- Angular contact ball size and chamfer can be downloaded by gb/t292 queryEach type of bearing has a GB definition, outline size and chamfer, and you can search for the use of GB
- Q:A one-way bearing keyway hole can connect other parts of the shaft, driven by cylindrical rotation? How much speed can I expect?
- You are not allowed to say this, with thick shaft, what types of bearings, preferably a drawing can be discussed, or that is not clear
- Q:Characteristics of cross roller bearings
- 4, substantial savings in installation spaceThe size of the inner and outer ring cross roller bearing is miniature minimal, especially ultra-thin structure is small size close to the limit, and has high rigidity, so the most suitable for industrial robot joints or rotating parts, machining center of the rotary table, the robot rotating parts, precision rotary table, medical instrument IC, measuring equipment, manufacturing device widely used.5., high speed capacity6. reduce the shaft length and processing costs, thermal expansion leads to limited changes in geometric size7. 、 adopt nylon separator, low rotating inertia, low starting torque, easy to control angle division8., optimize pre tightening force, stiffness, guide roller running high accuracy9. carburizing steel provides excellent impact resistance and surface abrasion resistance
- Q:where can I buy other GPS drilling accessories? I have some GPS rigs.
- With so many rigs, you can buy it directly from Wuhan Jintai Geological Engineering Machinery Co., ltd.... They have all rig accessories, very, very complete. You can call them 400
- Q:A winter hand is out of the question, always pull the beginning of a circle when no problem, after feeling a little strength are not, pay attention to the following 2: 1, the legend of the hand is slipping should take a one-way bearing cleaning, I remove the bubble in alcohol and with ultrasonic cleaner washing, the result is really good for a moment, the next is not good; also for the one-way bearing, when the hammer is likely to change in the same phenomenon. 2, this is a method I find, is the first at home to the engine oil pump, the pump to the obvious rich and even a little bit when misfire, hand is good, get out after the fire down soon start pouring fuel, normally is not a one-way bearing can not enter fuel? Late into the fuel hand puller is obviously not slip like a long time don't see is what reason, solution!
- Is the quality of bearings, the size is not standard, because the axis tolerances are limited, resulting in a loose tight. Replace the bearings of better quality.In principle, the general transition fit, one-way needle, this structure is too simple, and the accuracy is not high, the domestic small factory product quality is not stable.A one-way bearing is a type of bearing that can be turned freely in one direction and locked in another direction. One-way bearings, also known as overrunning clutch, but according to different industries, the role of different naming.
- Q:Compared with other bearings, what is the application performance of NSK Bearings?
- The quality of NSK bearings and all aspects are good, after all, is a big brand!
- Q:Bearings into the sand, to dismantle the wheel, there are other ways?
- If the bearings are not replaced, the bearings can be cleaned by kerosene, and then the grease is sealed again.
- Q:In engineering practice, for needle roller bearings, usually axial positioning is the same as other bearings?
- Needle bearing features are axial can not bear the load, so the operation of the axial direction of the bearing no force, radial installation slightly tight can be, the axial need not limit
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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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