Abstract

A technical and economic analysis is done from simulations of propped hydraulic fracturing in low permeability reservoirs, as tight oil, in which the production from the well varies due to different well completion, each one is evaluated to determine the greatest economic performance. Working with a defined semi-integral system from the reservoir to the wellhead and focusing on well productivity; a method of analytic solution for diffusivity equation, alongside the nodal analysis method, and a multiphasic flow correlation for inclined tubing; allows estimating production on the wellhead. The cases studied demonstrate that hydraulic fracturing operations are very profitable before taxes, also, due to the high costs of these stimulation techniques, it is important to have an analytical tool that allows for a quick and precise evaluation of diverse scenarios, based on production analysis and its corresponding profit calculated by an economic analysis. This study could be adapted to analyze various tight oil reservoirs, providing results that justify investing in exploration and/or reactivation of them.

摘要

通过对低渗透油藏（如致密油）的水力压裂模拟进行技术和经济分析，其中由于不同的完井情况，油井的产量会发生变化，每个油井的产量都要进行评估，以确定最大的经济效益。从储层到井口使用已定义的半集成系统，并专注于产能。扩散方程的解析解方法，以及节点分析方法，以及斜管的多相流相关性；可以估算井口的产量。所研究的案例表明，由于压裂技术的高昂成本，水力压裂作业的税前利润非常高，重要的是要有一个分析工具，该工具可以根据生产分析及其通过经济分析计算出的相应利润，快速准确地评估各种情景。这项研究可以适合于分析各种致密油藏，提供的结果可以证明对勘探和/或活化它们进行投资是合理的。