FracSinus RSM AB offer state of the art stress measurements using both hydraulic and overcoring techniques.

Stress data interpretations are also undertaken based on hydraulic data, overcoring data, data resolving from various failures of the borehole wall (drilling-induced fractures, borehole breakouts, slips on re-activated faults). All data interpretations follow the guidelines of the International Society of Rock Mechanics (ISRM).

Since year 2020, services also include large scale hydraulic fracturing applications, where the servies include installation and operational services of hydrofrac units, technical support of both surface and downhole tools, implementation and data interpretation and evaluation.

Hydraulic methods


- Well sizes 48, 56, 76, 96, and 123 mm

- Testing in arbitrary oriented boreholes

- Depths ranges 0-150, 0-500, and 0-3000 m

- Fracturing imaging using impression packer (max depths

  150 m), optical or acoustic logging with gamma ray

  correlation, and electrical imaging

- In-house developed software for interpretation and stress





Pre- and postlog of test section using electrical imaging indicating induced en enchelon fractures.

Overcoring Methods


- Well sizes 76 mm or larger

- Testing in arbitrary oriented boreholes

- Testing in water-filled boreholes

- Depth range 0-1000 m

- Overcoring cell Borre Probe, version III, semi wire-line

   in NQ-sized boreholes

- Overcoring cell Borre Probe, version IV, fully wire-line

   in HQ-sized boreholes (estimated to year 2021-2022).

- Cell CSIRO HID (stress monitoring)

- Cell Borre Mon (stress monitoring)

- Logger Nexus for monitoring cells

Overcoring measurement procedure with Borre III, WL drilling.