|本期目录/Table of Contents|

[1]高祥森 张明明 朱 琳 范翔宇 张千贵 赵鹏斐.页岩断裂韧性实验分析及预测模型建立[J].中国海上油气,2019,31(05):154-159.[doi:10.11935/j.issn.1673-1506.2019.05.017]
 GAO Xiangsen ZHANG Mingming ZHU Lin FAN Xiangyu ZHANG Qiangui ZHAO Pengfei.Experimental analysis on shale fracture toughness and the establishment of prediction model[J].China Offshore Oil and Gas,2019,31(05):154-159.[doi:10.11935/j.issn.1673-1506.2019.05.017]
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页岩断裂韧性实验分析及预测模型建立()

《中国海上油气》[ISSN:1673-1506/CN:11-5339/TE]

卷:
第31卷
期数:
2019年05期
页码:
154-159
栏目:
钻采工程
出版日期:
2019-10-10

文章信息/Info

Title:
Experimental analysis on shale fracture toughness and the establishment of prediction model
文章编号:
1673-1506(2019)05-0154-06
作者:
高祥森1 张明明2 朱 琳3 范翔宇2 张千贵2 赵鹏斐2
(1. 中国石油大学胜利学院 山东东营 257061; 2. 西南石油大学 四川成都 610500; 3. 中国石油川庆钻探工程公司川西钻探公司 四川成都 610017)
Author(s):
GAO Xiangsen1 ZHANG Mingming2 ZHU Lin3 FAN Xiangyu2 ZHANG Qiangui2 ZHAO Pengfei2
(1.China University of Petroleum Shengli College, Dongying, Shandong 257061, China; 2.Southwest Petroleum University, Chengdu, Sichuan 610500, China; 3.Chuanxi Division of Chuanqing Drilling Engineering Co., Ltd., CNPC, Chengdu, Sichuan 610017, China)
关键词:
页岩 断裂韧性 物理力学参数 预测模型
Keywords:
shale fracture toughness physical and mechanical parameters prediction model
分类号:
TE357.1+1
DOI:
10.11935/j.issn.1673-1506.2019.05.017
文献标志码:
A
摘要:
鉴于岩石断裂韧性直接测试的复杂性及无法获得储层断裂韧性连续剖面,采用国际岩石力学协会推荐的CCNBD标准试件开展了页岩断裂韧性及密度、声波时差、抗拉强度、硬度等一系列实验,对页岩I型断裂韧性与其他物理力学参数相关性进行研究,并采用逐步回归方法建立了页岩I型断裂韧性线性多元预测模型。研究结果表明,页岩I型断裂韧性与声波时差成反比,与抗拉强度、硬度成正比,与抗拉强度相关性最高、与密度相关性最低; 采用逐步线性回归分析方法建立了页岩I型断裂韧性线性多元预测模型,预测模型计算结果与实测数据较为吻合,可用于储层岩石断裂韧性连续剖面计算。本文研究结果对于现场预测页岩断裂韧性有较好参考价值。
Abstract:
In view of the complexity of direct rock fracture toughness test and the inability to obtain the continuous profile of reservoir fracture toughness, the fracture toughness and density, acoustic transit time, tensile strength and hardness of shale were measured in sequence by using the CCNBD standard specimens recommended by the International Rock Mechanics Association. The correlation between shale type I fracture toughness and other physical/mechanical parameters was studied, and a stepwise regression method was used to establish a linear multivariate prediction model for shale type I fracture toughness. The results show that the shale type I fracture toughness is inversely proportional to the acoustic transit time, and is proportional to tensile strength and hardness. It has the highest correlation with tensile strength and the lowest correlation with density. The shale type I fracture toughness linear multivariate prediction model was established by stepwise linear regression analysis, the calculation results of prediction model are in good agreement with the measured data, and this model can be used to calculate the rock fracture toughness continuous profile of reservoir. The results of this paper are of good reference value for predicting shale fracture toughness on site.

参考文献/References:

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备注/Memo

备注/Memo:
*四川省应用基础研究计划项目“形成大规模压裂缝网的水平井井眼轨迹优化研究(编号:2014JY0092)”部分研究成果。 第一作者简介: 高祥森,男,讲师,主要从事岩石力学、井壁稳定等方面的研究与教学工作。地址:山东省东营市中国石油大学(邮编:257061)。E-mail:zhichen_paper@qq.com。 通信作者简介: 范翔宇,男,教授,2005年毕业于西南石油大学,获博士学位,主要从事油气井岩石力学、钻井地质环境描述及灾害防治技术、测井技术在石油工程中的应用等方面的研究。地址:四川省成都市新都区新都大道8号西南石油大学1410(邮编:610500)。E-mail:swpu_fxy666@126.com。
更新日期/Last Update: 1900-01-01