... Geohysical well logging Geophysical well logging (borehole logging,) is a set of borehole investigation methods that are based on ... with stresses present in the rock mass. Borehole wall imaging – electric or acoustic logging at a very high resolution (that ...
Artykuł - 10/23/2014 - 13:21
... injection of fracturing fluid into a sealed section of the borehole with perforated casing. The rock breaks and the fracture begins to ... beyond the minimum stress tangential to the wellbore wall. The hydraulically induced fracture always propagates in a direction ...
Artykuł - 10/16/2014 - 15:10
... surface. Horizontal stresses can be assessed on the basis of borehole breakout or hydraulic fracture data induced by highly pressurized ... axes), and sometimes of the stress magnitude. Borehole wall mini-fracturing tests, which are made before the large-scale commercial ...
Artykuł - 12/11/2014 - 19:18