摘要
为解剖水平井水平段内部产能分布规律,以庄海8断块馆陶组底水油藏为例,建立水平井多段井模型。利用数值模拟技术,定量描述了理想均质油藏水平井、非均质油藏水平井的沿程压力、产量的分布,指出水平段储层非均质性是造成水平井内部动用差异、影响水平井开发效果的关键因素;提出了适合滩海大位移长水平段水平井的分段开采方式。实施结果表明,分段开采可有效提高非均质长水平段油层动用程度、改善水平井开发效果。
In order to understand the productivity distribution in horizontal section of horizontal well,taking the Guantao bottom water reservoir in Zhuanghai block 8 for example,a model for horizontal multi-section wells is proposed.The pressures along the horizontal well-bore and productivity distribution of horizontal wells in ideal homogeneous formation or non-homogeneous formation are described quantitatively by using simulation technique.The results show that the heterogeneity of formation is the key factor that causes the producing difference in the horizontal well-bore and it influences the development of horizontal well.A sectional producing method for horizontal wells with long horizontal length and big displacement is introduced.The field case results show that sectional producing method for horizontal wells is effective to increase the producing degree for long horizontal length in non-homogeneous formation and improve the development effect of horizontal wells.
出处
《油气井测试》
2012年第4期7-9,75,共3页
Well Testing
关键词
底水油藏
水平井
水平段
产能分布规律
分段开采
bottom water reservoir,horizontal wells,horizontal section,productivity distribution,sectional producing
