The drilling buckets suck the drills

The drilling buckets suck the drills

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The rumor terminator: the drilling buckets sucks the drills.

Difference between the conical bucket and the cylindrical bucket: only the different diameters of the upper drills. The diameters of the below part of the drills are the same.

As we all know, the seal of the engine piston depends on the piston ring on the top.

The friction drag of drill’s lifting and the phenomenon of drill’s sucking are the condition of clamping the drill or the state of sealed vacuum produced when lifting the drill, which because the process of drilling, the clastic rocks, with the action of torque and bearing, overflow to the gap between two sides below the bucket and the bore’s wall. Due to the consistent of the diameters in the bottom of the cylindrical bucket and conical bucket, also creating the same effect of sucking the drill, there’s no difference between the two types of buckets in lifting the drill.

All Bauer’s cylindrical buckets have enterclose.

Q: Why Bauer’s cylindrical buckets (single bottom/double bottoms) have the enterclose for flowing (avoiding to suck the drill), as the two types of the buckets are the same in sucking the drill.

A: Bauer’s buckets provide enterclose in all series of single bottom/double bottoms. There are 3 effects as below.

1. To prevent sucking the drill when lifting it.

2. To circulate the mud in the drill when lifting it.

3. To promote the power of drilling and reduce the wear and tear of the drill teeth. (confidentiality)

Bauer’s buckets are configured enterclose that is not only to prevent sucking the drill when  lifting it...

Conclusions:

1. The drilling buckets sucking the drill is the same like the theory of the engine’s piston’s seal depending on the piston ring, which depends on the bottom of the drilling buckets. While the differences between the cylindrical bucket and the conical bucket are the diameters of the upper buckets, it’s no difference in effect of lifting the drills of this two types of buckets.

2. German (Bauer, Liebherr) and Japanese drilling buckets are cylindrical. It’s validated that the rotary drilling buckets should be cylindrical which is related to the power of drilling, the location and the prevention of accidents.

3. Advantages and disadvantages of the conical bucket.

3.1. It’s said that conical bucket is better than cylindrical bucket in uploading the muck.

A: Whether it is easy to upload the muck or not is depended on the diameters of the drilling buckets, drilling depth of one time, the geology type and the construction technology. From these points, it’s the same between cylindrical buckets and conical buckets. Moreover, the conical bucket’s volume is small, more dense muck in the bucket with the same footage depth of one bucket (the more dense muck, the higher frictional residence), which means it is more difficult to upload the muck.

3.2. It’s said that the conical bucket doesn’t suck the drill.

A: It has been introduce above.

3.3. It’s also said the conical bucket’s directivity is better when it’s hoisted.

It’s undeniable that the directivity of conical bucket is good when hoist it, but the structure of the conical bucket also improves the chances of clamping the drills. In addition, the cylindrical bucket also has improved the function of directivity through structural design.