低渗透油藏仿水平井注采井网产能

doi:10.11743/ogg20160318

石油与天然气地质 ›› 2016, Vol. 37 ›› Issue (3): 439-443.doi: 10.11743/ogg20160318

低渗透油藏仿水平井注采井网产能

李荣强^1,2, 吕爱民¹, 王建忠¹, 李阳¹, 詹世远¹, 王月英¹

1. 中国石油大学(华东), 山东青岛 266580;
2. 中国石化胜利油田分公司工程技术管理中心, 山东东营 257000

收稿日期:2016-01-21 修回日期:2016-04-25 出版日期:2016-06-08 发布日期:2016-06-22
通讯作者: 王建忠(1973—),博士、副教授,油气渗流理论与油田开发技术。E-mail:wangjzh@upc.edu.cn。 E-mail:wangjzh@upc.edu.cn
作者简介:李荣强(1973—),男,博士研究生,高级工程师,油气田开发理论与技术。E-mail:lirongqiang.slyt@sinopec.com。
基金资助:
中央高校基本科研业务费专项资金(14CX05025A,14CX02045A);国家自然科学基金项目(51490654)。

Productivity of the imitation horizontal well pattern in low permeability reservoirs

Li Rongqiang^1,2, Lyu Aimin¹, Wang Jianzhong¹, Li Yang¹, Zhan Shiyuan¹, Wang Yueying¹

1. China University of Petroleum(East China), Qingdao, Shandong 266580, China;
2. Engineering Technology Management Center of Shengli Oilfield, SINOPEC, Dongying, Shandong 257000, China

Received:2016-01-21 Revised:2016-04-25 Online:2016-06-08 Published:2016-06-22

摘要/Abstract

摘要： 仿水平井技术可大幅度增加单井泄油面积和控制储量，实现了低丰度、特低渗透油藏的有效动用。为比较该技术与传统水平井技术开发效果的不同，对仿水平井不同开发井网稳态产能进行精确快速预测，以仿水平井渗流特征为基础，基于流管流线积分方法建立了不同井网形式考虑启动压力梯度的仿水平井产能预测模型。与实际产量对比表明，所建立产能预测模型得到的计算结果具有较高的准确度（最大误差为8.04%）。通过应用所建立模型进行计算对比可知，仿水平水井长度相同时，交错井网稳态产能大于正对井网稳态产能，波及面积较大，开发效果较好，而且正对井网对水井长度的敏感性大于交错井网。该研究对特低渗透油藏仿水平井井网注水开发具有一定的理论指导意义。

关键词: 产能, 穿透比, 仿水平井, 注采井网, 低渗透油藏

Abstract: Imitation horizontal wells can significantly enlarge single well drainage area and increase controlled reserves,thus effectively develop low-abundance and ultra-low permeability reservoirs.In order to accurately and rapidly predict steady-state productivity of various imitation horizontal well patterns,deliverability prediction models with start-up pressure being taken into consideration were established for different imitation horizontal well patterns by using stream tube flow line integral method based on seepage flow characteristics of imitation horizontal wells.Comparison of the modeling results with actual production shows that the models are accurate in productivity prediction with an error less than 8.04% only.The models also show that staggered well pattern is better than cross well pattern in terms of steady-state productivity and sweep area when the lengths of the imitation horizontal well are the same.The latter is also more sensitive to well length than the former.The study may help theoretically guiding the application of imitation horizontal wells in ultra-low permeability reservoirs.

Key words: productivity, penetration ratio, imitation horizontal well, injector-producer pattern, low-permeability oil reservoir

中图分类号:

TE348

李荣强,吕爱民,王建忠,等. 低渗透油藏仿水平井注采井网产能[J]. 石油与天然气地质, 2016, 37(3): 439-443. doi: 10.11743/ogg20160318 Li Rongqiang,Lyu Aimin,Wang Jianzhong,et al. Productivity of the imitation horizontal well pattern in low permeability reservoirs[J]. Oil & Gas Geology, 2016, 37(3): 439-443. doi: 10.11743/ogg20160318

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低渗透油藏仿水平井注采井网产能

Productivity of the imitation horizontal well pattern in low permeability reservoirs

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