2015年8月4日星期二

The variety of drilling machines and drilling equipments


Drilling machine is really a kind of gear that is utilized to drill in the earth surface. It includes some large-scale Engineering Drilling Rigs that are utilized to drill water nicely, oil well, and nature gas well. In the same time, it also consists of some small size equipments which can be moved by a single person, and they are known as twist drill or hand drilling machines. Drilling machine can achieve the sampling of underground mineral or set up underground item equipments. It could be faxed on some moving devices like truck, trail car and pathway, or be faxed stationary on land and offshore structure, like drilling platform, or be known as as Offshore Oil Rig .
Numerous countries, such as America, France, Canada and Germany, all developed various oil drilling rigs on and off to meet all type needs of oil and gas reservoir at various areas. There is the improvement history of drilling rigs.
1. AC frequency conversion electric drive petroleum drilling machine. The core technologies of this machine is AC variable frequency speed control technology. It is a complete cross technology which involved motor theory, automatic control theory, the circuit topology theory, power electronics, micro-electronics and pc technology. It is an organic mixture of modern higher technologies and oil drilling machinery, and has powerful vitality. It's the development trend of modern petroleum drilling rigs.
two. Laser drilling rig. Compared with conventional drilling machines, laser drilling rigs don?¡¥t require drilling fluid, drilling bits, drill rods, oil tube and casing pipe, these characteristics would reduce the costing greatly. Meanwhile, laser drilling rigs have many other possible advantages, like light-weight, small floor space, fast speed, and could through various types of rocks. Probably the most essential benefit of laser drilling rig is that it's a clean break and may drill, melt and evaporate rocks. Due to this, there's no cutting back towards the ground and have a smaller impact around the environment.
3. New Hydraulic Drilling Rig. This sort of rigs is formed by double acting hydraulic cylinder, moving yoke, lifting rope, balancer assembly, hydraulic cylinder guide frame, the leading drive device, hydraulic system and a few other parts. Its motion mode is converted easily. It has small volume and light weight. It could be used in some conditions which possess a higher requirement of drilling rig volume and quality when the reliability of hydraulic elements may be improved in the future.
4. Continuous soft tube of oil drilling rig. Continuous soft tube is a kind of steel tube with high intensity continuous manufacturing. Nowadays, the continuous length of the tube can reach to 7620 meters. The advantage of this drilling technology is mainly embodied in low price, brief drilling time. It could achieve synchronization in between measure and drilling and be used in re-drilling old wells, deepen the borehole and sidetracking.
Meanwhile, it also can be used in underbalanced drilling operation to ensure operation security. Continuous soft tube of oil drilling rig is very suit to drill small hole well and the improvement of offshore platform and also the marginal oil field, for it has small floor space, small soft tube size and its equipments can be installed, tear downed and carried convenient. But the application of continuous soft tube technology was limited by some factors and only may be used in nicely drilling. On the other side, its service life is shorter than other equipments.
5. Casing drilling rig. This is a new business technology of nicely drilling. Instead of drill rods, it use casing pipe to drill wells. It use leading drive device that is drove by electric and hydraulic. Generally, it is installed on trial vehicle and to transmit the torque through the sleeve. Then this power will drive the drilling bit that is installed on the bottom from the torque to drill rotary. This structure is extremely simple to alter the drilling bit and the operation is very handy and fast.
As the quickly improvement of economy, The study and manufacturing degree of oil exploration gear in our country has made great progress. You will find much more and more expert drilling equipment producers in China. Such as, you will find a great deal of manufacturers create diamond bits which is utilized in borehole drilling machine at present China. There are also a lot of drill rods producers and water nicely drilling gear surppliers, you are able to discover each kind and model you would like online.

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