用于减少井间干扰的引射器研究  

Study on Jet Pumps for Reducing Inter-well Interference

作　　者：龙雪 冯旻祎 孟良 付亦升 LONG Xue;FENG Minyi;MENG Liang;FU Yisheng(SINOPEC Chongqing Shale Gas Co.,Ltd.,Chongqing 408400,China)

机构地区：[1]中石化重庆页岩气有限公司,重庆408400

出　　处：《广州化工》2025年第3期155-158,共4页GuangZhou Chemical Industry

摘　　要：页岩气采用滚动开发的方式,且存在部分平台在煤层气和页岩气同平台开采,并且有部分平台存在煤层气和页岩气同平台开采的情况,气井之间压力差异显著,同平台井间干扰严重制约着低压井的生产。通过运用引射增压技术,能够实现高压气井与低压气井之间的能量传递,从而达到利用高压气井能量以及为低压气井增压的目的。本文介绍了引射增压技术的原理和结构,并运用气体动力学方法对引射器进行设计,利用FLUENT软件作为求解工具,对设计的引射装置开展数值模拟,获得了引射器内流体的压力云图和速度云图。同时,采用控制变量法对引射器主要结构参数进行优化,和初步设计相比,将引射系数从0.23提升至0.31,验证了引射器可利用高压气井井的压力,减少井间干扰。Shale gas is developed in a rolling manner,and there are some platforms where both coalbed methane and shale gas are extracted from the same platform.There is a significant pressure difference between gas wells,and the interference between wells on the same platform severely restricts the production of low-pressure wells.By applying the ejector pressurization technology,energy transfer between high-pressure and low-pressure gas wells can be achieved,thereby utilizing the energy of high-pressure gas wells and pressurizing low-pressure gas wells.The principle and structure of the ejector pressurization technology was introduced,and the ejector using gas dynamics methods was designsed.FLUENT software was used as the solution tool to conduct numerical simulation on the designed ejector,obtaining the pressure and velocity cloud diagrams of the fluid inside the ejector.Meanwhile,the main structural parameters of the ejector were optimized using the control variable method.Compared with the initial design,the ejector coefficient was increased from 0.23 to 0.31,verifying that the ejector can utilize the pressure of high-pressure gas wells and reduce the interference between wells.

关 键 词：引射器 数值模拟 压力匹配性 

分 类 号：TE375[石油与天然气工程—油气田开发工程]