| 摘要: |
| 根据实际油藏中鱼骨刺井井眼轨迹的三维空间展布特征，建立上下封闭边界油藏中鱼骨刺井生产段油藏渗流 数学模型，考虑主井眼与分支井眼完井方式和井筒内流动损失,形成主井眼生产段井筒内变质量管流、主井眼生产 段近井油藏渗流、分支井眼生产段井筒内变质量管流和分支井眼生产段近井油藏渗流耦合作用的鱼骨剌井产能评 价模型，并进行应用分析。结果表明:鱼骨刺井生产时，主井眼生产段沿程压降呈非线性增加,分支井眼与主井眼生 产段交汇处存在压降突变点;主井眼与分支井眼生产段的势相互干扰，主井眼生产段径向流量分布呈两端高、中间 低、交汇点处减小的特征，而分支井眼沿程径向流量呈跟端低、中间逐渐增大、指端高的特点。 |
| 关键词: 鱼骨刺井 多段流动 耦合模型 产能评价 流动分析 |
| DOI：10.3969/j.issn.1673-5005.2010.02.017 |
| 分类号:TE355 |
| 基金项目:国家自然科学基金项目(50804052) |
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| Production evaluation model of fishbone well considering coupling among multi-segments flow |
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HUANG Shi-jun1,CHENG Lin-song1,ZHAO Feng-lan2,LI Chun-lan1
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(1. MOE Key Laboratory of Petroleum Engineering in China University of Petroleum, Beijing 102249, China;2. EOR Center in China University of Petroleum, Beijing 102249，China)
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| Abstract: |
| A new percolation model near production section of fishbone bore in closed boundary reservoir was established based on the 3-D spatial discription of fishbone well trajectory. Based on the completion methods and flow loss of main bore and laterals，a production evaluation model was formed on considering coupling influence between percolation in reservoir and variable mass pipe flow in production section wellbore and the interference between laterals and main bore. And the model was applied and analyzed. The results show that the pressure drop distribution along main section is non-linear increase，and the pressure drop changes suddenly in the point of main and lateral intersection. And the radial flow distribution along main production section shows the characteristics of high at heel end and toe end，low at midium part and decrease at intersection But the radial flow distribution along Lateral production section shows the characteristics of high at heel end，inscrease at midium part and high at toe end. |
| Key words: fishbone well multi-segments flow coupling model production evaluation flow analysis |
