The general formula and application for the elastic two-phase method with stable and variable rate of gas wells
| Autor: | CHEN Yuanqian, LIU Yang, WANG Xin |
|---|---|
| Jazyk: | čínština |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Youqi dizhi yu caishoulu, Vol 31, Iss 1, Pp 72-77 (2024) |
| Druh dokumentu: | article |
| ISSN: | 1009-9603 20230702 |
| DOI: | 10.13673/j.pgre.202307027&lang=en |
| Popis: | For the gas flow controlled by the closed boun&dary， after the completion of gas testing and shut-in to obtain the original formation pressure， the pressure draw down curves can be divided into three stages： unsteady state， transit state and pseudo-steady state. The pseudo-steady state is called elastic two-phase state， and the pressure within the well control range of the elastic two-phase state decreases at a constant velocity. This article established the general formulas for the stable rate and variable rate elastic two-phase method of gas wells， based on the stable rate elastic two-phase method represented by pressure first power， pressure square and pseudo pressure proposed by Chen Yuanqian， and the variable rate elastic two-phase method represented by pressure first power proposed by Blasingame. The practical application shows that the general formula provided in this paper are practical and effective. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|