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DOI | 10.1306/01211917156 |
Mathematical model for calculating the horizontal principal stress of a faulted monoclinal structure in southwest Qaidam Basin, China | |
Fan, Xiangyu1,2; Zhang, Qiangui1,2,3; Duan, Meiheng4; Yang, Yang5; Duan, Qiang6; Chen, Xiaohong7; Lv, Da2 | |
2019-11-01 | |
发表期刊 | AAPG BULLETIN
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ISSN | 0149-1423 |
EISSN | 1558-9153 |
出版年 | 2019 |
卷号 | 103期号:11页码:2697-2729 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Canada |
英文摘要 | Faulted monoclinal structures incorporate folds and faults. Their displacements cause stress release of differing degrees in various areas. Furthermore, the faults commonly extend to the deep strata, which may lead to the flow of boiling inclusions and localized thermal stresses. A complex distribution of in situ stress appears in such areas, which makes it challenging to drill well-bores. In this study, we first analyzed the geological structure and the factors influencing in situ stresses of a faulted monoclinal structure in southwest Qaidam Basin. Second, based on Huang's model, a mathematical model for calculating the horizontal principal stress of the faulted monoclinal structure was developed considering the stress release from fault and fold displacements and the outflow from boiling inclusions. Third, the magnitudes of the horizontal principal stresses of the study area were obtained using this new mathematical model, and the predicted values had an average error of 2.63% according to a comparison with the results of the hydraulic fracturing field measurements. Fourth, an in situ stress distribution in this area was established by combining the horizontal principal stresses' magnitudes and the maximum horizontal principal stress direction. Finally, based on the in situ stress distribution of the study area, the mud density and trajectory for drilling the third stage of well Z207 were determined. The field application revealed that the design parameters met the engineering requirements satisfactorily, which indicates that this mathematical model can predict the horizontal principal stress of the faulted monoclinal structure in southwest Qaidam Basin. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000496966100006 |
WOS关键词 | WELLBORE STABILITY ; SITU ; FIELD ; ORIENTATION ; PREDICTION ; PRESSURE |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/224014 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu, Sichuan, Peoples R China; 2.Southwest Petr Univ, Coll Petr Engn, Chengdu, Sichuan, Peoples R China; 3.Ecole Polytech Montreal, Dept Civil Geol & Min Engn, Montreal, PQ, Canada; 4.Jilin Oilfield Co, Oil & Gas Engn Res Inst, CNPC, Songyuan, Jilin, Peoples R China; 5.PetroChina Southwest Oil & Gas Field Co, Shale Gas Res Inst, Chengdu, Sichuan, Peoples R China; 6.CNPC Jilin Oilfield Co, Drilling Technol Res Inst, Songyuan, Jilin, Peoples R China; 7.CNPC Qinghai Oilfield Co, Drilling & Prod Technol Inst, Dunhuang, Gansu, Peoples R China |
推荐引用方式 GB/T 7714 | Fan, Xiangyu,Zhang, Qiangui,Duan, Meiheng,et al. Mathematical model for calculating the horizontal principal stress of a faulted monoclinal structure in southwest Qaidam Basin, China[J]. AAPG BULLETIN,2019,103(11):2697-2729. |
APA | Fan, Xiangyu.,Zhang, Qiangui.,Duan, Meiheng.,Yang, Yang.,Duan, Qiang.,...&Lv, Da.(2019).Mathematical model for calculating the horizontal principal stress of a faulted monoclinal structure in southwest Qaidam Basin, China.AAPG BULLETIN,103(11),2697-2729. |
MLA | Fan, Xiangyu,et al."Mathematical model for calculating the horizontal principal stress of a faulted monoclinal structure in southwest Qaidam Basin, China".AAPG BULLETIN 103.11(2019):2697-2729. |
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