2017年8月第36卷第4期
大庆石油地质与开发
Petroleum Geology and Oilfield Development in Daqing
DOI:10.19597/J.ISSN.1000-3754.201703050
苏里格气田致密储层裂缝定量描述方法
杨昕谅
（东北石油大学石油工程学院，黑龙江大庆163318）
Aug-，2017 Vol. 36 No. 4
摘要：鄂尔多斯盆地苏里格气田属于典型的致密砂岩储层，裂缝发育程度直接影响到水平气井体积压裂效果和后期产能建设，对天然裂缝的正确描述意义重大。以苏X气田为例，利用深浅双侧向电阻率幅度差数据及其他常规测井资料，运用分形理论中R/S分析方法对目的层段裂缝发育程度进行了定量识别，定量分析了分形维数与裂缝密度的关系，并探讨了裂缝分形维数与气井初期产能的关系。经钻并岩心、动态等验证，吻合效果良好，表明在苏里格气田，应用R/S分析方法对单井裂缝发育程度进行定量描述行之有效，分形维数值越大，天然裂缝越发育，气井压裂效果也就越好。
关键词：分形；R/S分析方法；常规测井曲线；天然裂缝；裂缝识别
中图分类号：TE37
文献标识码：A
文章编号：1000-3754（2017）04-0142-05
QUANTITATIVEDESCRIBINGMETHODOFTHETIGHTRESERVOIR
FRACTUREINSULIGEGASFIELD
YANG Xinliang
(School of Petroleum Engineering，Northeast PetroleumUniversity,Daqing163318,China)
Abstract: Sulige Gasfield in Ordos Basin belongs to the typical tight sand reservoirs, the fracture development de gree directly affects the volume fracturing effects of the horizontal well and the later productivity construction, so the corect description of the natural fracture is of great significance, Taking Su-X Gasfield as an example, with the help of the amplitude difference data between the deep and shallow investigate double lateral resistivity (R, and R,), and other conventional logging data, and moreover the analyzing method of R/S, the fracture developed degree was asaeaeaaaee were analyzed quantitatively, and at the same time, the fracture fractal dimension and gas-well initial productivity was explored. Tested by the data of the drilling cores and performances available, the coincidence effects are much better, these achievements show that R/S analyzing method is feasible to quantitatively characterizethe development degree of the individual well fractures, the bigger the fractal dimension value is, the more developed the natural fracturewill be, so are the effects of the gas-well fracturing.
Key words: fractal; R/S analysis; conventional log curve; natural fracture; fracture identification
收稿日期：2016-12-17
改回日期：2017-01-31
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作者简介：杨昕凉，男，1990年生，在读博士，从事油气田开发工程研究。
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E-mail:xinliang_yang@126.com