Simultaneous multiple-fracture treatments in horizontal wellbores have become one of the key methods for economically and efficiently developing oil and Hunting Dogs gas resources in unconventional reservoirs.However, field data show that some perforation clusters have difficulty propagating fractures due to the internal mechanism of competing init
This paper describes a pose-based underwater 3D Simultaneous Localization and Mapping (SLAM) using a multibeam echosounder to produce high consistency underwater maps.The proposed algorithm compounds swath profiles of the seafloor with dead reckoning localization to build surface patches (i.e., point clouds).An Iterative Closest Point (ICP) with a
This article traces the erection of and changes in the Buddhist temple of Chongshansi in Taiyuan through the process of spatial production under the social background of the Ming and Qing Dynasties.It is stated that the founding time of the temple complies with the reorganization policies aimed at Buddhist institutions in the early Ming Dynasty, wh