کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8914483 | 1640472 | 2018 | 67 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Quantifying opening-mode fracture spatial organization in horizontal wellbore image logs, core and outcrop: Application to Upper Cretaceous Frontier Formation tight gas sandstones, USA
ترجمه فارسی عنوان
سازماندهی فضایی شکست در بازه های کوتاه در سیاهه های تصویر چاه افقی، هسته و تبخیر: کاربرد در سازند مرز کرتاسه بالا ماسه سنگهای کوچک، ایالات متحده
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کلمات کلیدی
خوشه، راهرو، فراکتال، فاصله ازدحام، مخزن غیر متعارف،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
چکیده انگلیسی
The Upper Cretaceous Frontier Formation is a naturally fractured gas-producing sandstone in Wyoming. Regionally, random and statistically more clustered than random patterns exist in the same upper to lower shoreface depositional facies. East-west- and north-south-striking regional fractures sampled using image logs and cores from three horizontal wells exhibit clustered patterns, whereas data collected from east-west-striking fractures in outcrop have patterns that are indistinguishable from random. Image log data analyzed with the correlation count method shows clusters â¼35Â m wide and spaced â¼50 to 90Â m apart as well as clusters up to 12Â m wide with periodic inter-cluster spacings. A hierarchy of cluster sizes exists; organization within clusters is likely fractal. These rocks have markedly different structural and burial histories, so regional differences in degree of clustering are unsurprising. Clustered patterns correspond to fractures having core quartz deposition contemporaneous with fracture opening, circumstances that some models suggest might affect spacing patterns by interfering with fracture growth. Our results show that quantifying and identifying patterns as statistically more or less clustered than random delineates differences in fracture patterns that are not otherwise apparent but that may influence gas and water production, and therefore may be economically important.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Structural Geology - Volume 108, March 2018, Pages 137-156
Journal: Journal of Structural Geology - Volume 108, March 2018, Pages 137-156
نویسندگان
J.Z. Li, S.E. Laubach, J.F.W. Gale, R.A. Marrett,