Open AccessPercolation Mathematical Model for Stepped Horizontal Well in Multilayer Fault Block Reservoir
Author(s) -
Liu Hong,
Pang Jin,
Xuejun Chang,
Xiaolong Yu,
Xu Zhang
Publication year - 2015
Publication title -
the open petroleum engineering journal
Language(s) - English
Resource type - Journals
ISSN - 1874-8341
DOI - 10.2174/1874834101508010097
Subject(s) - laplace transform , pressure drop , mechanics , geology , pressure gradient , fault block , flow (mathematics) , fault (geology) , geometry , geotechnical engineering , mathematics , mathematical analysis , physics , seismology
The percolation mechanism and regularity for stepped horizontal well in multilayer complex fault block reser- voir are complex. A percolation mathematical model based on unsteady flow mathematical model is built up in this paper. In the model, the reservoir couples with one horizontal well in sealed reservoir which perforate through mutually uncon- nected formation. The model is solved by the methods such as Laplace change, Stehfest inversion and Conjugate gradient. Compared with the result of Saphir method, the model is proved to be of great reliability. As shown in the application of actual reservoir, the model could calculate BHP and production distribution of various production phases accurately. It can provide theoretical foundation of reservoir research engineering and production engineering design for reservoir de- velopment with stepped horizontal well in multilayer complex fault block reservoir.