Abstract: CO2 scavenging additives having one or more cyanamide functionalities for the reduction of corrosion in subterranean formations are disclosed. The additives are also suitable for the simultaneous scavenging of CO2 and H25. The additives can be introduced by way of a treatment fluid for the subterranean formation to interact with and reduce the concentration of CO2 and/or H25 in the formation.

Abstract: A method comprises obtaining or providing a treatment fluid comprising a gellable agent; an aqueous carrier fluid; at least one polymer comprising one or more ortho-dioxy arylene units; a crosslinking agent; and placing the treatment fluid in a subterranean formation. In some embodiments, the aqueous carrier fluid comprises produced and/or flowback water. In some embodiments, the aqueous carrier fluid comprises high total dissolved solids, including multivalent salts or both monovalent and multivalent salts.

Abstract: In one example, formation fluid flow through a fractured reservoir is simulated using conductivity of aged proppants. A first conductivity profile is received for a proppant. The first conductivity profile describes an ability of the proppant to permit formation fluid flow through a fracture network under reservoir conditions in a fractured reservoir that includes the proppant in the fracture network. The proppant is aged for a duration under the reservoir conditions of the fractured reservoir over the duration. After the duration, a second conductivity profile for the aged proppant is determined. An adjusted conductivity profile for the proppant is determined based on the first conductivity profile and the second conductivity profile. The adjusted conductivity profile is provided as an input conductivity profile for the proppant. The reservoir simulator simulates formation fluid flow through the fractured reservoir using the input conductivity profile.