CAJ | 학술논문

国内外对于松散颗粒床渗透率、窄分砂(均匀砂)渗透率的研究很多,但对于地层砂渗透率的研究很少,也没有将这种方法引入到石油工程领域;筛管完井后的产能变化主要取决于筛管外堆积砂渗透率的变化和筛管的堵塞程度,为此本文针对地层砂渗透率与地层砂粒度中值,非均匀系数和小于44 μm颗粒含量的关系展开了实验研究,通过实验拟合出地层砂渗透率与上述几种影响因素的关系图版.由此对于任意给定的地层砂,可以通过测试其粒度分布结合该图版得出渗透率的大致变化范围,为产能预测中渗透率的变化提供理论依据,从而可以更加准确地预测防砂井在不同防砂精度下产能的变化规律,对指导工程实践具有一定意义.
국내외대우송산과립상삼투솔、착분사(균균사)삼투솔적연구흔다,단대우지층사삼투솔적연구흔소,야몰유장저충방법인입도석유공정영역;사관완정후적산능변화주요취결우사관외퇴적사삼투솔적변화화사관적도새정도,위차본문침대지층사삼투솔여지층사립도중치,비균균계수화소우44 μm과립함량적관계전개료실험연구,통과실험의합출지층사삼투솔여상술궤충영향인소적관계도판.유차대우임의급정적지층사,가이통과측시기립도분포결합해도판득출삼투솔적대치변화범위,위산능예측중삼투솔적변화제공이론의거,종이가이경가준학지예측방사정재불동방사정도하산능적변화규률,대지도공정실천구유일정의의.
At the moment, there were a lot of researchs for permeability of the particles packed bed and uniform sand home and abroad, but little researchs for formation sand permeability, this way do not call in petroleum engineering area; after screen completion alternate deliverability be decided by accumulated sand permeability changed and degree of bridging for screen, for this reason this paper in view of experimental study relationship between formation sand permeability and formation median grain size, nonuniformity coefficient, less than 44μm grain content. By means of text, equate drawing board of formation sand permeability with above-mentioned affecting factor. Given formation sand, by means of testing distribution of sizes, unite this drawing board can obtain variation range of permeability, offer theory foundation for deliverability forecast with altering permeability, so that can furthermore exactly forecast trans-formation rule of deliverability under different sand control accuracy, for guiding engineering practice have some significance.