矢量井网改善平面非均质油藏水驱开发效果研究

›› 2008, Vol. 29 ›› Issue (1): 135-139.

矢量井网改善平面非均质油藏水驱开发效果研究

周涌沂¹，李阳²，王端平³

1.中国石化胜利油田地质科学研究院，山东东营 257015；2.中国石化油田部，北京100029；3.中国石化胜利油田，山东东营 257015

收稿日期:2006-09-14 出版日期:2008-01-10 发布日期:2013-07-18
作者简介:周涌沂，男，1972年生，博士，高级工程师，主要从事油气田开发研究工作
基金资助:
中国石油化工股份有限公司科技攻关项目“非均质砂岩油藏矢量开发技术研究”（No. P03054）部分成果。

Research on water flooding effect improved by vectorial well arrangement for reservoirs with permeability heterogeneity in plane

ZHOU Yong-yi¹, LI Yang², WANG Duan-ping³

1. Geological Science Research Institute of Shengli Oil Field for Sinopec, Dongying 257015, China; 2. Oil Field Department of Sinopec, Beijing 100029, China; 3. Shengli Oil Field for Sinopec, Dongying 257015, China

Received:2006-09-14 Online:2008-01-10 Published:2013-07-18

摘要/Abstract

摘要： 平面非均质是河流相沉积的重要特征。如果采用常规等井距五点井网开发该类油藏，往往会导致注入水在高渗透方向的突进，造成部分生产井见水时间早，含水上升快，而渗透率较低方向上的生产井注水受效不明显，当井组内的综合含水达到98 %时，注入水在该方向上还没有突破，即注水驱替往往不均衡，开发效果差。在渗流力学基础上，推导了平面非均质油藏矢量井网的井距设计公式。根据矢量井网的井距设计公式，建造了物理模型，开展了水驱油对比试验研究，检验了用矢量井网开发平面非均质油藏的有效性。试验结果表明：矢量井网能增大平面非均质油藏的波及系数，提高注入水的利用率，大大改善油藏开发效果。

关键词: 平面, 非均质, 矢量, 井距, 驱替, 均衡

Abstract: Permeability heterogeneity in plane is an important characteristic of fluvial facies formation. If it is developed using conventional five-spot well arrangement with equal-well-space, the injection water often fingers along high permeability strip quickly, which results in early water-breakthrough and quick water-cut increase for parts of the wells, while wells in relatively low permeability strips can not be flooded effectively; water does not break through as total water-cut for a well group reaches 98 %. That is, the reservoir can not be flooded in equilibrium, and the developing result is not good. The design formula for well space of vectorial well arrangement for permeability heterogeneity in plane is derived based on porous flow theory. According to the well space formula of vectorial well arrangement, the physical models are made to carry out the contrastive water flooding experiments which are used to check the validity of vectorial well arrangement. The results indicate that the vectorial well arrangement can improve the plane sweep factor for reservoirs with permeability heterogeneity, and raise the efficiency of injection water; moreover, it could improve the developing effect greatly.

Key words: plane, heterogeneity, vector, well space, flooding, balance

中图分类号:

TE 324

周涌沂，李阳，王端平 . 矢量井网改善平面非均质油藏水驱开发效果研究[J]. , 2008, 29(1): 135-139.

ZHOU Yong-yi , LI Yang , WANG Duan-ping . Research on water flooding effect improved by vectorial well arrangement for reservoirs with permeability heterogeneity in plane[J]. , 2008, 29(1): 135-139.

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