Reef-beach limestone is the chief gas reservoir of Amu Darya Basin in Turkmenistan beneath the thick gypsum and salt formations. It is greatly difficult to identify and drill the reef. In order to solve the hard technical problems of reef recognition under salt in Amu Darya Right Bank gas field，several seismic and geological researches were carried out，including auxiliary interpretation of forward modeling，reconstruction of palaeo-geomorphology，discontinuous seismic multiattribute extraction，wave impedance inversion and isochronous stratigraphic slice，etc. A set of effective identification and geological evaluation techniques was established for reef beneath the salt. Conditions of trap formation and the spatial distribution characteristics of reef-beach traps beneath the gypsum were determined after research results of multi-methods were synthesized to be confirmed and supplemented by each other in the area. On that basis，the development characteristics and distribution of reef-beach in Amu Darya Right Bank Block were predicted and evaluated to help identify and optimize drilling targets. As a result，the success drilling rate of exploration wells and appraisal wells remained at more than 90% in the area.