Fracture Dynamic Propagation Model of High-Energy Gas Fracturing for Casing Perforated Well
Message:
Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
The onshore oil and natural gas industries of China have started a large-scale development when crude oil reserves have been difficult to recover. The stratum fracture modification is an indispensable measure to efficiently develop oil and gas fields. Hydraulic fracturing is the most important reservoir stimulation technique, but it is still faced with various problems such as the failure to fracture the target reservoir, long fracturing duration, and short efficient length of the fracture. High Energy Gas Fracturing (HEGF) can easily break down the high-fracture-pressure oil reservoir and generate multiple fractures free of in-situ stress. Moreover, HEGF entails no large-scale devices, and this method is strongly adaptable to the environment without causing environmental pollution. After combining the two technologies (HEGF and the other), then they can complement each other with their strengths. That is, both of them decrease the fracture initiation pressure of (or caused by) hydraulic fracturing on the one hand, and to extend, gather, and support multiple radial fractures of gas fracturing on the other hand. Thus, a fracture zone with a large radius is finally formed, and the percolating resistance of the fluid is significantly decreased.
Moreover, in this study, a dynamic model related to the drainage flow of the perforated holes in a gas well, fluid pressure distribution in the fracture, fluid seepage on the fracture wall, fracture initiation criterion, and fracture propagation velocity during the HEGF process has been presented. Consequently, a gas/liquid/solid coupling fracture dynamic propagation model during the HEGF process can be built to provide a theoretical basis for the accurate simulation of the fracture form changes during this process.
Language:
English
Published:
Journal of Petroleum Science and Technology, Volume:9 Issue: 1, Winter 2019
Pages:
44 to 55
magiran.com/p1939450  
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یک‌ساله به مبلغ 990,000ريال می‌توانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
  • حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران می‌شود.
  • پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانه‌های چاپی و دیجیتال را به کاربر نمی‌دهد.
دسترسی سراسری کاربران دانشگاه پیام نور!
اعضای هیئت علمی و دانشجویان دانشگاه پیام نور در سراسر کشور، در صورت ثبت نام با ایمیل دانشگاهی، تا پایان فروردین ماه 1403 به مقالات سایت دسترسی خواهند داشت!
In order to view content subscription is required

Personal subscription
Subscribe magiran.com for 50 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!