Late-stage Dissolution
The development of dolomitized micro-porosity produced storage capacity. This micro-porosity is the result of extensive, burial-related, dissolution processes. These subsurface processes may be controlled by local structure as much as by stratigraphy and sedimentation. Commonly associated with micro-porosity are other features indicative of late dissolution of matrix in pre-existing Red River dolomites and dolomitic limestones. These include vuggy and channel pores which commonly occur along stylolites and micro-fractures. Halos of moldic, micro-vuggy, channelized and chalky porosity are very common around the stylolites within burrow-mottled facies. The orientation and abundance of such pore systems may affect reservoir drainage.