What Is Sonic Drilling?
What is sonic drilling? Simply put, it is a new type of drilling technique that uses resonant energy to drill through rock formations. This energy is matched to each formation and coincides with the natural frequency. This results in maximum energy being delivered to the face rock formation. This technology also minimizes friction from adjacent soils and has very fast penetration rates. The process typically involves a core barrel and a larger diameter drill string that cases the borehole and prevents it from collapsing.
Drilling with rotary-vibratory
Sonic drilling is based on the principles and technology of sonics. These vibrations are emitted from the drilling equipment and help increase its speed and depth. The invention was initially a Romanian project that was eventually commercialized in the 1940s by US and Russian oil companies. By the end of that decade, the rotary-vibratory drill had been developed and refined by another Romanian.
Sonic drilling is a great tool for core sampling. It is an effective way to collect large quantities of ground. A core sampling drill head can direct the vibrations from this type of drilling down to create a clean core sample. Core sampling is often required to obtain precise data about a geological structure. Second, the ability to collect samples quickly can save the drilling company time and money.
It is vital that sonic drilling be safe, regardless of the purpose. The process of drilling a hole requires a precise level of precision, and is not suitable for people who are easily intimidated by technical terms. Sonic drilling can also generate large amounts of heat in dry-cemented formations. Sonic drilling can generate little to no heat in unconsolidated formations. Fortunately, this is easily controllable in the field.
Compared to conventional drilling methods, sonic drilling yields a relatively undisturbed sample from a formation. The rig produces a sample that is less than 1% different from the original sample. Track-mounted drill rigs offer new mobility and access to drilling sites that were previously impossible for heavy trucks. Compact drill pads take up less space that conventional drilling pads, which means that it is easier to grade land or clear trees.
BS 5930 2015 defines a method of seismic testing of soils that does not comply with the British Standard. This method was evaluated using sonic samples compared to other methods. This test was done in conjunction with engineering judgement. The results show that sonic sampling is equivalent to dynamic sampling in a wide range of soil types. The method was found to be more suitable for drilling in cohesive and granular soils, while the results of the tests were comparable to the data from traditional methods.