压裂直井产量公式  

A Production Formula for Fractured Vertical Wells

作　　者：李传亮 庞彦明 周永炳[2] 战剑飞[2] 臧伟[2] 陆慧敏[2] 朱苏阳 LI Chuanliang;PANG Yanming;ZHOU Yongbing;ZHAN Jianfei;ZANG Wei;LU Huimin;ZHU Suyang(School of Petroleum Engineering,Southwest Petroleum University,Chengdu,Sichuan 610599,China;Research Institute of Exploration and Development,Daqing Oilfield Company Limited,PetroChina,Daqing,Heilongjiang 163712,China;Daqing Oilfield Company Limited,PetroChina,Daqing,Heilongjiang 163002,China;Heilongjiang Key Laboratory of Continental Shale Oil,Daqing,Heilongjiang 163712,China)

机构地区：[1]西南石油大学石油与天然气工程学院,成都610599 [2]中国石油大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712 [3]中国石油大庆油田有限责任公司,黑龙江大庆163002 [4]黑龙江省陆相页岩油重点实验室,黑龙江大庆163712

出　　处：《新疆石油地质》2023年第6期683-689,共7页Xinjiang Petroleum Geology

基　　金：中国石油科技重大专项(2021ZZ10);黑龙江省“百千万”工程科技重大专项(SC2020ZX05A0023)。

摘　　要：油井压裂后,流体在地层中的流动不再是简单的线性流或径向流,流场变得复杂,无法直接运用解析方法求解。为了求解压裂直井的产量公式,将地层中的复杂流场进行了分解,划分成外区径向流、中间线性流和裂缝线性流3个简单流形;对简单流形分别进行求解,并采用水电相似原理和等值渗流阻力法,解析求解得到压裂直井的产量公式。该公式不仅可以计算和预测油井产量,还可以确定压裂裂缝的长度及压裂效果。Fluid flow in the reservoir is no longer merely linear or radial after fracturing,instead,the flow field becomes complex and cannot be directly solved using analytical methods.In order to derive a production formula for fractured vertical wells,the complex flow field in the reservoir was decomposed into three simple flow patterns:outer radial flow,middle linear flow,and fracture linear flow.Each of these flow patterns was separately solved,and by applying the principles of fluid‑electric similarity and equivalent flow resistance method,a production formula for fractured vertical wells was analytically derived.This formula can be used to calculate and predict the production of fractured vertical wells,and also to determine the fracture length and fracturing effect.

关 键 词：压裂 油井 产量 表皮因子 线性流 径向流 水电相似原理 等值渗流阻力法 

分 类 号：TE311[石油与天然气工程—油气田开发工程]