网络出版日期: 2012-02-20
基金资助
油气藏地质及开发工程国家重点实验室开放基金资助项目“复杂气井试井分析现状及应用研究”(编号:PLN0422)
A new deliverability model for horizontal gas well under non-uniform damage
Online published: 2012-02-20
吴其林 , 傅恒 , 李秀华 , 韩定坤 , 黄勇 , 段金宝 . 非均匀污染下水平气井产能新模型[J]. 岩性油气藏, 2012 , 24(1) : 121 -124 . DOI: 10.3969/j.issn.1673-8926.2012.01.024
Forecasting the deliverability of horizontal well accurately plays an important part in economical and effective exploitation of oil and gas field. When we use horizontal well to exploit oil and gas field, the flow processing includes reservoir flow and wellbore flow. Taking both non-uniform damage around wellbore and pressure drop along the wellbore into account, we establish a semi-analytic model to estimate the deliverability of horizontal gas well. Then use this new model to calculate the production of a horizontal gas well, compare with the production under uniform damage, and respectively analyze the effect of pressure drop along the wellbore under different permeability and non-uniform damage around wellbore on well deliverability. This new model can provide theoretical basis for the deliverability analysis for horizontal gas well and multilateral gas well.
Key words: petrology; sponge reef; radiolarian; Changxing Formation; Yuanba area
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