Types of Beixi slopes and the process of tectonic evolution

Abstract

The phenomenon of oil and gas accumulation on the Beixi slope is obvious, which is one of the important directions of oil and gas pre-exploration and increasing reserves and production in the future. Taking the Beixi slope as the target area, according to the geological characteristics, the Beixi slope is divided into the differential subsidence type of the same fault depression, the reverse normal fault tilting and lifting slope and the compound slope. The evolution profile of Beixi slope is restored by using 2Dmove application software. based on the joint action of structure and deposition of Beixi slope, the fault evolution process of Beixi slope can be divided into four stages: rift stage 1 (Tongbamiao formation-N14 reflection layer), rift stage 2 (N14 reflection layer-T22 reflection layer), fault depression conversion stage (T22 reflection layer-T04 reflection layer) and depression inversion stage (above T04 reflection layer).

Keywords

• beixi slope
• slope type
• evolution process