CAJ | 학술논문

温度对特低渗砂岩渗透率的影响存在争议，且温度对砂岩渗透率应力敏感性的影响研究较少。以延长油田特低渗砂岩岩芯为研究对象，应用室内物理模拟实验研究了不同压力条件下温度对特低渗砂岩渗透率的影响以及温度对特低渗砂岩应力敏感性的影响。实验研究表明：在高围压（20.0 MPa）下，温度从30?C增加到150?C砂岩渗透率几乎不变；在低围压（3.0 MPa）下，温度从30?C增加到150?C时砂岩渗透率降低了13.47%；温度从30?C增加到150?C ，储层渗透率应力敏感性伤害程度增加了3.8%，高温条件下比低温条件下应力敏感性增强。
온도대특저삼사암삼투솔적영향존재쟁의，차온도대사암삼투솔응력민감성적영향연구교소。이연장유전특저삼사암암심위연구대상，응용실내물리모의실험연구료불동압력조건하온도대특저삼사암삼투솔적영향이급온도대특저삼사암응력민감성적영향。실험연구표명：재고위압（20.0 MPa）하，온도종30?C증가도150?C사암삼투솔궤호불변；재저위압（3.0 MPa）하，온도종30?C증가도150?C시사암삼투솔강저료13.47%；온도종30?C증가도150?C ，저층삼투솔응력민감성상해정도증가료3.8%，고온조건하비저온조건하응력민감성증강。
The influence of temperature on the permeability of sandstone is controversial,and there are only a few studies on the effect of temperature on permeability sensitivity in sandstone reservoirs. In this paper,experiment of effect of temperature on permeability and stress sensitivity is conducted on a core from an ultra-low permeability reservoir,Yanchang Oilfield. In door physical simulation is taken as study method. Results show that,under low confining pressure(3.0 MPa),when temperature increases from 30 ?C to 150 ?C ,permeability decreases by 13.47%,and stress sensitivity increases by 3.8%. When confining pressure is 20.0 MPa,permeability stays unchanged when temperature increases from 30 ?C to 150 ?C . Stress sensitivity is stronger under higher temperature.