水平井同倾斜角度产液剖面计算模型

doi:10.11743/ogg20150420

石油与天然气地质 ›› 2015, Vol. 36 ›› Issue (4): 688-694.doi: 10.11743/ogg20150420

水平井同倾斜角度产液剖面计算模型

宋文广¹, 江琼琴¹, 李疾翎², 黎明³

1. 长江大学油气资源与勘探技术教育部重点实验室, 湖北武汉 430100;
2. 中海油田服务股份有限公司, 河北三河 065201;
3. 中国石油青海油田分公司测试公司, 青海茫崖 816400

收稿日期:2014-07-12 修回日期:2015-07-05 出版日期:2015-08-08 发布日期:2015-08-28
第一作者简介:宋文广(1979—),男,副教授,软件工程、生产测井解释方法研究与软件研制。E-mail:whswg1979@126.com。
基金项目:
国家科技重大专项(2011ZX05020-006);湖北省教育厅项目(Q20141312);油气资源与勘探技术教育部重点实验室(长江大学)开放基金资助项目(K2013-06)。

Equal-tilt-angle production profile calculation model of horizontal wells

Song Wenguang¹, Jiang Qiongqin¹, Li Jiling², Li Ming³

1. Key Laboratory of Exploration Technologies for Oil and Gas Resources Ministry of Education, Yangtze University, Wuhan, Hubei 430100, China;
2. China Offshore Oilfield Services Limited, Sanhe, Hebei, 065201, China;
3. Qinghai Oilfield Company Testing Company, PetroChina, Mangai, Qinghai 816400, China

Received:2014-07-12 Revised:2015-07-05 Online:2015-08-08 Published:2015-08-28
Contact: 江琼琴(1980—),女,博士生、讲师,油气渗流理论与应用、油气田开发理论与方法。E-mail:swgjqq@126.com。 E-mail:swgjqq@126.com

摘要/Abstract

摘要：

由于重力等因素水平井内油气水出现层流等流型，与传统直井、斜井中完全不一样，传统的产液剖面解释方法在水平井中应用存在着较大误差。为了提升水平井产液剖面解释精度、提高油气采收率，研究一种新的产液剖面解释方法迫在眉睫。首先在分析国内外现有的解释方法基础上，再结合水平井流型机理试验，通过分析实验数据发现在水平井中倾斜角度相同并且流体各相参数都不变时，流型也不变，但是倾斜角度轻微变化也会对流型产生较大的影响。因此，提出同倾斜角度解释模型计算水平井产液剖面各相流量值，并结合计算机软件工程的思想设计出反演计算方法，对模型进行软件实现，最终推算出各解释层产液剖面数据。通过对22口测井数据的比较分析，验证得知单相流解释结果误差不超过7.8%，多相流解释结果误差不超过9.8%，总流量解释误差不超过9.68%。该解释方法提高了水平井产液剖面解释精度，能满足工程应用要求。

关键词: 同倾斜角度, 产液剖面, 水平井, 生产测井解释

Abstract:

Due to factors like gravity, laminar flow of oil, gas and water occurs in horizontal wells, which completely differs from the traditional vertical or slant wells.When applied to horizontal wells, the traditional fluid production profile interpretation method often produces errors.Thus it is imminent to create a new interpretation method for horizontal wells, so as to improve its interpretation accuracy and to enhance oil recovery. In this paper, we first analyzed the existing interpretation methods, and then describe the experimental results of horizontal well flow pattern mechanism.Our test data showed that the flow pattern remains constant when the tilt angle and the fluid parameters in each phase of the horizontal wells are the same.Yet a slight change in the inclined angle has great impact on the flow pattern.Therefore, we proposed an equal-tilt-angle interpretation model to calculate the flow rates of each phases in horizontal wells, designed an inversion algorithm, and programmed the model for calculation of fluid production of each layer.Comparative analysis with logging data from 22 wells showed that the error is less than 7.8% for single phase flow interpretation, less than 9.8% for multi phase flow interpretation, and less than 9.68% for total flow interpretation.Experimental results show that this interpretation method can improve the interpretation accuracy of fluid production profile in horizontal wells, and meet the requirements of engineering applications.

Key words: equal-tilt-angle, production profile, horizontal well, production logging interpretation

中图分类号:

TE132

宋文广,江琼琴,李疾翎,等. 水平井同倾斜角度产液剖面计算模型[J]. 石油与天然气地质, 2015, 36(4): 688-694. doi: 10.11743/ogg20150420 Song Wenguang,Jiang Qiongqin,Li Jiling,et al. Equal-tilt-angle production profile calculation model of horizontal wells[J]. Oil & Gas Geology, 2015, 36(4): 688-694. doi: 10.11743/ogg20150420

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水平井同倾斜角度产液剖面计算模型

Equal-tilt-angle production profile calculation model of horizontal wells

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