Research of Multi-factor Dynamic Allocation Methods of Gas Well in
Xushen Gas Field

doi:10. 3863/j. issn. 1674 – 5086. 2013. 03. 015

Abstract

Abstract:

The volcanic gas reservoirs are the characteristics of rapid variation of lithology and lithofacies and complex gaswater
relation，which can result in severe problems including energy loss，reservoir damage，bottom-hole liquid accumulation，
and water flooding，ultimately have serious influence on gas well productivity and gas reservoir recovery under the condition of
irrational allocation. There are the some problems of small single well control reserves in Xushen gas field，low productivity，
rapid pressure decreasing during development，rapid production decline and general water production. The traditional single
factor allocation methods can not meet the needs of production. According to the productivity analysis of systematic well testing，
node system analysis，dynamic analysis of water production，dynamic reserves analysis of single well and the calculations
of critical liquid carrying flow rate and critical production bottom water coning，and with comprehensive consideraction of
dynamic influence on allocation bound from various allocation bounds，stratum pressure，bottom hole pressure and production
water/gas ratio，this paper has optimized the gas well allocation and finally formed a set of multi-factor dynamic allocation
methods for volcanic gas reservoirs under the principles of rational energy utilizing，pressure drop equilibrium，gas production
rate balance，effective water control，safe liquid carrying and effective control of bottom water coning. This method has been
practically applied in XS gas field and acquires good effect.

Key words: Xushen Gas Field, volcanic gas reservoir, allocation bound, multi-factor dynamic allocation

Zhao Qingbo1, Shan Gaojun2. Research of Multi-factor Dynamic Allocation Methods of Gas Well in
Xushen Gas Field[J]. 西南石油大学学报(自然科学版), DOI: 10. 3863/j. issn. 1674 – 5086. 2013. 03. 015.

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