水平井压裂携砂液摩阻定量计算模型研究  

QUANTITIVE COMPUTATIONAL MODEL OF THE CARRIER FLUID DRAG OF HORIZONTAL-WELL FRACTURING

作　　者：李勇明[1] 赵金洲[1] 毛虎[1] 申峰[2] 乔红军[2] 

机构地区：[1]"油气藏地质及开发工程"国家重点实验室西南石油大学,四川成都610500 [2]陕西延长石油(集团)有限责任公司,陕西西安710075

出　　处：《西南石油大学学报（自然科学版）》2011年第6期80-84,207,共5页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：中国石油科技创新基金项目(2011D–5006–0201)

摘　　要：近年来,携砂液在压裂管柱内流动的沿程摩阻研究仍未取得实质成果,而携砂液的沿程摩阻分析是指导压裂设计和施工的关键。因此,有必要对携砂液的沿程摩阻进行研究,推导可普遍应用的沿程摩阻计算模型。利用液固两相流相间的动量交换理论,研究了携砂液分别在直井段、造斜段和水平段流动时支撑剂颗粒处于悬浮运动状态、滑跳移运动状态以及部分悬移,部分滑跳移状态下的携砂液平均流速,最终利用Darcy-Weisbach公式建立了可用于各类型井的携砂液沿程摩阻计算模型,并计算分析了管径、施工排量、砂比、压裂液及支撑剂性质对携砂液沿程摩阻的影响。The analysis of the friction loss of the carrier fluid is the key to guide the fracturing design and the constructionwork,so,it is necessary to study the friction loss of the carrier fluid,and derive the quantitive computionalmodel of the friction loss of the carrier fluid. Taking into account the momentum transfer between liquid-solid phases,this paper works out the average velocity of slurry in vertical section,curve section and horizontal section,withdifferent particle movement pattern of suspension,slip-jump,partial slip-jump respectively,and through the use ofDarcy-Weisbach equation establishes a new model of slurry friction loss,which can analyse the friction loss influencedby certain parameters,such as pipe diameter,delivery rate,proppant concentration,properties of proppantand fracturing fluid.

关 键 词：水平井 压裂 携砂液 沿程摩阻 动量交换 

分 类 号：TE319[石油与天然气工程—油气田开发工程]