کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1747787 1522269 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Prediction of pressure between packers of staged fracturing pipe strings in high-pressure deep wells and its application
ترجمه فارسی عنوان
پیش بینی فشار بین بسته بندی شده از خطوط لوله شکستگی در چاه های عمیق فشار بالا و کاربرد آن
کلمات کلیدی
فشار بالا، خیلی خوب، تحریک در مرحله، فشار حلقوی، مدل پیش بینی، میدان نفتی تاریم،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی
Addressing to the deteriorated load conditions of working string and packers caused by annular pressure drop between packers during the staged stimulation of high-pressure deep well, one 2D temperature field transient prediction model for borehole under injecting conditions which considers such influences as friction heat, convection heat exchange was set up, based on energy conservation principle and borehole heat transfer theory. By means of analyzing the influences of borehole temperature and pressure changes on the annular volume between packers, and in combination with borehole temperature transient prediction model, annular fluid PVT equations of state, radial deformation model of tubing and formation transient seepage equation, a typical high-pressure deep well inter-packer annular pressure prediction model was established. Taking a high-pressure gas well in Tarim Oilfield for example, the inter-packer annular pressure prediction was conducted, on which, the mechanical analysis on packers and working strings was carried out. The analysis results show that although the pipe string is safe in the viewpoint of conventional design methods, it is still susceptible to failure after the annular pressure drop between packers was taken into consideration. Such factor should be fully considered in the design of staged stimulation pipe strings, and this prediction model provides new thoughts for the optimal design of high-pressure deep well staged stimulation pipe strings.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Natural Gas Industry B - Volume 2, Issues 2–3, March–May 2015, Pages 252-256
نویسندگان
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