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Advantages of Water Well Drilling Rig

Release time:

2023-12-14

The concepts of drilling machine bit oblique cut index and anisotropy index and comprehensive cutting preparation anisotropy index are derived from the general Roundup formula and simplified form of formation natural inclination force suitable for the actual drilling machine bit, volume crushing and surface crushing conditions of the drilling machine. The calculation formula of formation change and inclination force and formation change azimuth force in directional drilling is derived by using the drilling machine bit cone method, which provides the basis for formation force analysis for drilling machine directional and orbit control. It is verified that the theoretical analysis results are in good agreement with the actual drilling.

1, drilling machine bit oblique cut index and heterosexual index and comprehensive cutting preparation anisotropy index and other concepts, derived suitable for the actual drilling machine bit, volume crushing and surface crushing conditions of the formation natural oblique force of the general Roundup and simplified form, it provides the basis for the analysis of formation force and personnel for the directional and orbital control of the drilling machine. It is verified that the theoretical analysis results are in good agreement with the actual drilling.
2. For the formation with small orientation, the inclination force and the formation change-in force, the scoop angle, the weight on bit, the formation inclination angle, the anisotropic cutting index of the drilling machine bit, the formation anisotropy index, the well bore orientation and the formation inclination azimuth force, or the azimuth reduction force. In general, the formation deviation force makes the drill bit trajectory close to the formation normal direction, and the formation change azimuth force makes the borehole azimuth close to the formation inclination azimuth. When the borehole azimuth of the drilling machine is consistent with the formation inclination azimuth, the formation variable azimuth force is zero.
3. On the basis of the proposed new concept, the critical formation dip angle equation is found, which provides a preliminary quantitative explanation for judging the drill bit trend of the drilling machine.
4. The formation force of the drilling machine is proportional to the weight on bit, and the formation force will increase obviously when the weight on bit is increased.