Bohrungsnahe

Bohrungsnahe refers to the area surrounding a borehole, typically in the context of geological or engineering explorations. This zone is of significant interest because the drilling process itself can alter the natural conditions of the rock or soil formation. These alterations can include changes in pore pressure, temperature, and the mechanical properties of the material. Understanding the borehungsnahe is crucial for accurate data interpretation from measurements taken within or near the borehole, such as fluid sampling or geophysical logging.

The extent of the borehungsnahe can vary depending on factors like the drilling method employed, the type of rock or soil, and the duration of the drilling. For instance, drilling with a high-pressure fluid injection might create a larger disturbed zone than dry drilling. In oil and gas exploration, the borehungsnahe can influence the flow of hydrocarbons into the wellbore. In geotechnical engineering, changes in the borehungsnahe can affect the stability of the borehole and the surrounding ground. Techniques such as core analysis and specialized well logging tools are used to characterize the borehungsnahe and its properties.