Geometry nature of hydraulic fracture propagation from oriented perforations and implications for directional hydraulic fracturing

水力压裂 穿孔 断裂(地质) 地质学 岩土工程 压力(语言学) 差异应力 计算机模拟 机械 材料科学 变形(气象学) 复合材料 语言学 哲学 海洋学 物理 冲孔
作者
Qingsheng Bai,Zhenghe Liu,Cun Zhang,Wang Chen
出处
期刊:Computers and Geotechnics [Elsevier BV]
卷期号:125: 103682-103682 被引量:41
标识
DOI:10.1016/j.compgeo.2020.103682
摘要

In this study, hydromechanical hybrid finite-discrete element method (FDEM) models were employed to investigate hydraulic fracturing from oriented perforations at the microscale. Numerical calibrations were first used to obtain the microproperties that can represent the realistic behavior of sandstone. The fracture morphology and breakdown pressure obtained from the numerical hydraulic fracturing show reasonable agreements with the experimental results, indicating that the numerical results are convincing. Then, this method was applied to investigate the effects of the differential stress, perforation angle, perforation length, and injection rate on both the geometry nature of the hydraulic fractures (HFs) and the breakdown pressure. The perforation orientation, differential stress, and injection rate are found to strongly affect the breakdown pressure and HF geometry. However, the perforation length shows a weaker effect, especially when the perforation length is larger than the wellbore diameter. Furthermore, small-scale simulations were performed to investigate the formation of connected fractures developed from multiple perforated wellbores under the concept of directional hydraulic fracturing (DHF). The different fracture propagations and geometries in the DHF model indicate that conclusions from studying hydraulic fracturing from a single perforated wellbore may provide a limited reference for hydraulic fracturing from multiple perforated wellbores. The stress shadow effects during HF interactions were identified as the primary factor that contributed to these differences. Numerical results also provide new information on the roles of several factors (differential stress, injection rate, perforation orientation, and injection sequence) in DHF. DHF could take advantage of stress shadow effects by optimizing related factors. Based on the numerical results, some implications on the design of DHF, from small-scale simulations to field-scale applications, are discussed.

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
柯柯完成签到,获得积分10
刚刚
顾海东完成签到,获得积分10
刚刚
1秒前
迅速冥茗完成签到,获得积分10
1秒前
hebhm完成签到,获得积分10
2秒前
Ava应助科研通管家采纳,获得10
3秒前
烟花应助科研通管家采纳,获得10
3秒前
3秒前
Daisy应助科研通管家采纳,获得10
3秒前
Ava应助科研通管家采纳,获得10
3秒前
予修应助科研通管家采纳,获得10
3秒前
李爱国应助科研通管家采纳,获得10
3秒前
打打应助科研通管家采纳,获得10
3秒前
香蕉觅云应助科研通管家采纳,获得20
3秒前
3秒前
Daisy应助科研通管家采纳,获得10
3秒前
SciGPT应助科研通管家采纳,获得10
3秒前
Lucas应助科研通管家采纳,获得10
3秒前
予修应助科研通管家采纳,获得10
3秒前
zx0914发布了新的文献求助20
3秒前
3秒前
3秒前
鹿门鹿门山完成签到,获得积分10
4秒前
环走鱼尾纹完成签到 ,获得积分10
5秒前
Ther发布了新的文献求助10
6秒前
KKKZ完成签到,获得积分10
6秒前
无花果应助自觉的凛采纳,获得10
6秒前
理穆辛完成签到 ,获得积分10
7秒前
潮鸣完成签到 ,获得积分10
7秒前
estrella完成签到 ,获得积分10
9秒前
FYm完成签到,获得积分10
9秒前
10秒前
10秒前
WJing发布了新的文献求助10
11秒前
量子星尘发布了新的文献求助10
11秒前
12秒前
butterfly完成签到,获得积分10
13秒前
丹青完成签到 ,获得积分10
13秒前
13秒前
老魏完成签到,获得积分10
14秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Handbook of Industrial Diamonds.Vol2 1100
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4038368
求助须知:如何正确求助?哪些是违规求助? 3576068
关于积分的说明 11374313
捐赠科研通 3305780
什么是DOI,文献DOI怎么找? 1819322
邀请新用户注册赠送积分活动 892672
科研通“疑难数据库(出版商)”最低求助积分说明 815029