... as the selective fracture stimulation strategy and challenges that have lead to the first successful tight gas discovery in the Sarah formation. sarah formation shlyapobersky drillstem/well testing closure pressure saudi arabia brine proppant permeability lower sarah formation gal completion...

...) with densities up to 18.5 ppg. However, the challenge to maximize the amount and quality of reservoir data collected and to reduce any impact on the formation caused by OBMs led to a search for an optimized water-based mud (WBM) system as an alternative. A WBM formulated with saturated potassium-formate brine...

... overall cost while ensuring that the well's connectivity to recoverable hydrocarbons is not impeded in any way. In 1995 Mobil was the first oil company to use formate brines as drill-in and completion fluids to improve the economics of deep gas field developments. Since then the formate brines have been...