[1]杨 明,马 栋,王 雨,等.海上油田多层合采井产量劈分方法[J].复杂油气藏,2020,13(01):53-57.[doi:10.16181/j.cnki.fzyqc.2020.01.010]
 YANG Ming,MA Dong,WANG Yu,et al.Production splitting method for multi-layer production wells in offshore oilfields[J].Complex Hydrocarbon Reservoirs,2020,13(01):53-57.[doi:10.16181/j.cnki.fzyqc.2020.01.010]
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海上油田多层合采井产量劈分方法()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
13卷
期数:
2020年01期
页码:
53-57
栏目:
油气开发
出版日期:
2020-03-25

文章信息/Info

Title:
Production splitting method for multi-layer production wells in offshore oilfields
作者:
杨 明马 栋王 雨周凤军何 芬
中海石油(中国)有限公司天津分公司,天津 300450
Author(s):
YANG MingMA DongWANG YuZHOU FengjunHE Fen
Tianjin Branch of CNOOC (China) Co., Ltd., Tianjin 300450,China
关键词:
海上油藏多层合采突变理论产量劈分
Keywords:
offshore reservoirmulti-layer productioncatastrophe theoryproduction splitting
分类号:
TE323
DOI:
10.16181/j.cnki.fzyqc.2020.01.010
文献标志码:
A
摘要:
海上多层合采时井斜超过70°的定向井受测试工艺限制无法进行产液剖面测试,给油气藏开发动态认识及后期挖潜带来不利影响。在分析突变理论原理的基础上,将油层厚度、孔隙度和含油饱和度划分为储量特征因素,将渗透率、原油黏度、地层压力和注入PV数划分为开发特征因素,并对其分别构建相应的突变模型。在求得各子系统产层目标值与相对突变面目标值的基础上,计算各层的产量劈分系数,得到基于突变理论的多层合采井产量劈分新方法。将该方法计算结果与传统方法及实际测试结果分别进行对比,相对误差在±8.0%以内,表明该方法劈分系数合理可靠。应用该方法对多层合采井进行了产量劈分,落实产层潜力,成功指导了调整井挖潜。
Abstract:
Multi-layer production of directional wells is used in offshore layered reservoirs.Due to the limitation of testing technology,the directional wells with a well deviation angle over 70 degrees can not be tested for fluid production profile,which has adverse effects on the understanding of reservoir development performance and the improvement of oil recovery. Based on the analysis of catastrophe theory,the reservoir thickness, the porosity, and the oil saturation were considered as the reserve characteristic factors, and the permeability,the oil viscosity,the pressure,and the injection PV number were classified as the development characteristic factors. And then the corresponding catastrophe models were built respectively. Based on the obtained target values of the production layer and relative catastrophe surface of each subsystem,the production splitting coefficient of each layer was calculated.So it was established the new production splitting method for multi-layer production wells based on catastrophe theory. The results calculated by the new method were compared with those from the traditional method and actual test,with a relative error within ±8.0%,indicating that the new method is reasonable and reliable,and can be applied in the multi-layer production splitting,to guide the potential tapping of the adjustment wells.

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备注/Memo

备注/Memo:
收稿日期:2019-06-16;改回日期:2019-07-28。
第一作者简介:杨明(1987—),硕士,工程师,主要从事石油天然气开发研究。E-mail:yangming18@cnooc.com.cn。
基金项目:国家科技重大专项“渤海油田加密调整及提高采收率油藏工程技术示范”(2016ZX05058-001);中海石油(中国)有限公司科技攻关项目“渤海‘双高’油田挖潜关键技术研究”(YXKY-2018-TJ-04)。
更新日期/Last Update: 2020-03-15