Experimental and theoretical evaluation of tubing cutting with rotating particle jet in oil and gas borehole operation

Zhao, Jian; Liao, Hualin; Xu, Yuan; Shi, Fang; Sun, Baojing; Chang, Fangrui; Han, Xiaoqiang

doi:10.1016/j.energy.2023.128468

Cited by 1 publication

(1 citation statement)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As the preceding analysis reveals, the current research on jet rock breaking predominantly focuses on pure water jets or abrasive jets, with a limited investigation into the utilization of steel, spherical, and large-diameter particles for rock breaking [15,36]. Furthermore, the SPH-FEM method is primarily employed to analyze quasi-static material breakage, and previous studies have rarely considered the effects of bottom hole confining pressure and high temperature.…”

Section: Introductionmentioning

confidence: 99%

Enhancing CO2 Injection Efficiency: Rock-Breaking Characteristics of Particle Jet Impact in Bottom Hole

Wang,

Zhao

2024

Atmosphere

Self Cite

View full text Add to dashboard Cite

Storing CO2 in oil and gas reservoirs offers a dual benefit: it reduces atmospheric CO2 concentration while simultaneously enhancing oil displacement efficiency and increasing crude oil production. This is achieved by injecting CO2 into producing oil and gas wells. Employing particle jet technology at the bottom of CO2 injection wells significantly expands the bottom hole diameter, thereby improving CO2 injection efficiency and storage safety. To further investigate the rock-breaking characteristics and efficiency, a finite element model for particle jet rock breaking is established by utilizing the smoothed particle hydrodynamics (SPH) method. Specifically, this new model considers the high temperature and confining pressure conditions present at the bottom hole. The dynamic response and fracturing effects of rock subjected to a particle jet are also revealed. The results indicate that particle jet impact rebound significantly influences the size of the impact crater, with the maximum first principal stress primarily concentrated on the crater’s surface. The impact creates a “v”-shaped crater on the rock surface, with both depth and volume increasing proportionally to jet inlet velocity and particle diameter. However, beyond a key particle concentration of 3%, the increase in depth and volume becomes less pronounced. Confining pressure is found to hinder particle impact rock-breaking efficiency, while high temperatures contribute to larger impact depths and breaking volumes. This research can provide theoretical support and parameter guidance for the practical application of particle impact technology in enhancing CO2 injection efficiency at the bottom hole.

show abstract

Section: Introductionmentioning

confidence: 99%