Enhanced oil recovery from fractured carbonate reservoir using membrane technology

Some applications of natural polymeric materials in oilfield operations: a review

“…One of the challenges in producing oil from this class of reservoirs is the presence of excessive natural fractures. Therefore, the early breakthrough of water during flooding leaves the majority of residual oil un-swept (Liu et al 2015). This challenge can be solved by sealing the natural fractures and thereby diverting the water to oil-rich areas.…”

Quantifying Rock Weakening Due to Decreasing Calcite Mineral Content by Numerical Simulations

“…Predicting these changes has a wide practical importance in applied sciences and materials engineering, especially for hydraulically conductive materials where reactive transport takes place ( Figure 1 ): hydrothermal alterations may weaken geological fractures [ 1 ] and fault zones up to their reactivation [ 2 ], chemical degradation of cements may influence the integrity of wells [ 3 , 4 ] and mineral dissolution can lead to significant weakening of geological reservoirs [ 5 , 6 ]. Hence, the quantification of this direct chemical–mechanical interaction is of substantial relevance within the context of risk assessment for most applications related to geological subsurface utilisation such as geothermal energy systems [ 7 , 8 , 9 ], enhanced oil recovery [ 10 , 11 ], radioactive waste disposal [ 12 , 13 ], underground coal gasification [ 14 , 15 , 16 ] and CO 2 or geological energy storage [ 17 , 18 , 19 ].…”