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Difference between rotary water well drilling rigs and percussive water well drilling rigs

There are mainly the following differences between rotary water well drilling rigs and percussive water well drilling rigs:

Drilling method:

 - Rotary water well drilling rigs mainly through the drill pipe to drive the drill bit rotation to cut strata drilling; impact water well drilling rigs is the use of mechanically or hydraulically driven heavy hammer repeatedly impact broken strata to drill.

Applicable strata:

 - Rotary water well drilling rigs are more suitable for drilling in loose soil, sand and other strata; impact water well drilling rigs tend to perform better in hard rock strata.

Drilling speed:

 - In general, rotary type drills relatively fast in soft formations; impact type may be more efficient in hard formations, but the overall speed may be relatively slower.

Drilling stability:

 - Rotary drilling process is relatively smooth; impact type will produce large vibration in the impact process.

Noise:

 - Impact type is usually noisy; rotary type is relatively small.

Drilling accuracy:

 - Rotary drilling accuracy control is generally better than the impact type.

Equipment structure:

 - Rotary structure is relatively complex; impact structure is relatively simple.

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