| 低渗高气油比油井合理套压研究 |
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| 引用本文： | 张益,陈军斌,石海霞,甘庆明.低渗高气油比油井合理套压研究[J].断块油气田,2011,18(3):397-399. |
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| 作者姓名： | 张益 陈军斌 石海霞 甘庆明 |
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| 作者单位： | 张益,陈军斌,Zhang Yi,Chen Junbin(西安石油大学石油工程学院,陕西,西安,710065);石海霞,甘庆明,Shi Haixia,Gan Qingming(长庆油田分公司油气工艺研究院,陕西,西安,710201) |
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| 基金项目： | 国家科技支撑计划"延长油区低渗-超低渗透油藏复杂结构井开采工艺技术研究及示范" |
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| 摘 要： | 对于低渗透高气油比油井,由于其产液量低,泵抽过程中常常由于脱气等因素使得泵效较低,合理控制低渗高气油比油井的套压是保持该类油井高效生产的关键.根据低渗油藏油气水三相流动的流入动态与井筒多相流流动情况,分析不同条件下套压对动液面及产量的关系.结合油井具体动、静态参数,给出了低渗高气油比油井合理套压确定的过程.现场实例表明...
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| 关 键 词： | 低渗透油藏 合理套压 泵入口压力 充满程度 综合因子 |
Study on reasonable easing pressure of low permeability and high gas-oil ratio wells |
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| Zhang Yi,Chen Junbin,Shi Haixia,Gan Qingming.Study on reasonable easing pressure of low permeability and high gas-oil ratio wells[J].Fault-Block Oil & Gas Field,2011,18(3):397-399. |
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| Authors: | Zhang Yi Chen Junbin Shi Haixia Gan Qingming |
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| Affiliation: | 1.School of Petroleum Engineering,Xi′an Shiyou University,Xi′an 710065,China;2.Oil and Gas Technology Research Institute,Changqing Oilfield Company,PetroChina,Xi′an 710201,China) |
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| Abstract: | For the low permeability and high gas-oil ratio oil wells,low liquid production makes the pump efficiency lower during the pumping process due to factors such as degassing.In order to keep the high production,the key is how to reasonably control the casing pressure of low permeability and high gas-oil ratio wells.Using the three-phase flow and wellbore multiphase flow of low permeability reservoirs,this paper analyzes the relationship of casing pressure vs.dynamic liquid surface and production under various conditions.Combined with the static and dynamic parameters,it can make sure the process of reasonable casing pressure for low permeability and high gas-oil ratio wells.The field case shows that the method can determine the reasonable casing pressure and improve the production and pump efficiency based on well deliverability,having wide suitability and high accuracy. |
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| Keywords: | low permeability reservoirs reasonable casing pressure pressure of pump inlet permeated degree comprehensive factor |
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