Prediction of Cuttings-Induced Annular-Pressure Loss in Extended-Reach Wells
作者机构：Key Laboratory of Enhanced Oil Recovery in Fracture-Vug ReservoirSINOPECUrumuqi830011China State Key Laboratory of Oil&Gas Reservoir Geology and ExploitationSouthwest Petroleum UniversityChengdu610500China
出 版 物：《Fluid Dynamics & Materials Processing》 (流体力学与材料加工（英文）)
年 卷 期：2023年第19卷第11期
页 面：2877-2890页
核心收录：
学科分类：0820[工学-石油与天然气工程] 082001[工学-油气井工程] 08[工学]
基 金：supported by the Sinopec Scientific Research Project“Demonstration of Engineering Technology for Ultra-Deep Drilling and Completion in Tarim Basin”(No.P21081-6) the National Natural Science Foundation of China Project“Mesoscopic Simulation of Dynamic Behavior of Bridging Particles Forfractured Thief Zone”(No.51604237)
主 题：Pressure loss cuttings extended-reach well yield-power law model drillingfluid
摘 要：Drill cuttings are broken bits of solid material removed from a borehole drilled by rotary,percussion,or auger methods and brought to the surface in the drilling *** these cuttings enter the annulus,they have an effect on the drillingfluid rheology and density,which is,in general,quite difficult to *** introducing an empirical correlation for the rheological properties of cuttings-laden drillingfluids,this study proposes a pres-sure-loss prediction method for an extended-reach well(ERW).After verifying the accuracy of this method,a case study is considered and a sensitivity analysis is conducted assuming a yield-power *** results show that an increased concentration of cuttings in the annulus contributes to an increased annular pressure ***-pared to their effect on the drillingfluid density,cuttings have a greater impact on the drillingfluid rheology.A larger rate of penetration contributes to an increased annular pressure *** higher drillingfluidflow rates,the annular pressure lossfirst decreases and then it *** addition,the annular pressure loss becomes high-er as the cuttings’particle size decreases and the cuttings’concentration grows.
维普期刊数据库