Abstract
The traditional methods of obtaining wettability from nuclear magnetic resonance (NMR) assumed that the wetting phase coating the surface of rock and the nonwetting phase centered in the pores. In addition, the wettability index from NMR in the traditional way ican not be directly applied to the area of enhanced oil recovery. In order to take the above issues into account, we construct a rock model and related the effective relaxivity from NMR interpretation with contact angle. We simplify the heterogeneous wetting rock model and simulate the distribution of fluid within rock pores under the influence of heterogeneous wettability using Lattice Boltzmann Method (LBM). Then NMR responses have been simulated and interpreted. The relationship between contact angle and the effective relaxivity(averaged surface relaxivity) obtained from NMR interpretation are constructed accordingly.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
