Microscopic Pore Structure Characteristics Of Unconventional Tight Reservoir And Its Impact On Development

Unconventional tight reservoir as a widely prospect of oil and gas resources,and its effect on the development of the micro pore structure is worthy of study,especially,is one of the frontiers of the discipline,how to precisely and accurately study the micro pore structure of tight reservoir has become one of the very unconventional oil and gas exploration mainly to solve the problem.This research has great theoretical significance,academic value,practical value and potential economic benefit.In order to fully characterize the micro pore structure characteristics of tight oil reservoir,Application of cast thin section,mercury injection curve,CT,nuclear magnetic resonance technology.The microscopic pore structure characteristics and its influence on the development of the tight reservoir in the Ordos Basin are studied.Study results show that: the very abnormal tight reservoir and its main features is the small pore throat,thus leads to a nonlinear flow caused great impact on the development,mainly effectively to drive for the establishment of the system pressure,the ultimate injection production well spacing,injection production pressure difference,oil well water is slow,the mining speed is low,the development benefit difference.Therefore,the scale of development of tight oil reservoir reconstruction application layer of advanced technology,fully expanded,increasing the throat,improving reservoir percolation ability,in order to achieve better development effect.