CAJ | 학술논문

网状裂缝型储层具有良好的油气储集能力且广泛存在。双侧向测井能够有效地识别裂缝。采用三维有限元素法对水平井网状裂缝型储层的双侧向响应进行数值模拟，并重点对网状裂缝中流体电阻率、基岩电阻率及裂缝倾角等因素变化所引起的响应特性进行了研究。数值结果分析表明，随着裂缝中流体电阻率增加，视电阻率值相应增加，但增加幅度不大；随着基岩电阻率的增加，视电阻也会随着增加，当基岩电阻率较小时，基岩电阻率的影响会降低；两组裂缝为低角度裂缝时，形成的网状裂缝对电流的阻碍能力较强。所得结论可为水平井网状裂缝型储层测井评价提供理论参考。
망상렬봉형저층구유량호적유기저집능력차엄범존재。쌍측향측정능구유효지식별렬봉。채용삼유유한원소법대수평정망상렬봉형저층적쌍측향향응진행수치모의，병중점대망상렬봉중류체전조솔、기암전조솔급렬봉경각등인소변화소인기적향응특성진행료연구。수치결과분석표명，수착렬봉중류체전조솔증가，시전조솔치상응증가，단증가폭도불대；수착기암전조솔적증가，시전조야회수착증가，당기암전조솔교소시，기암전조솔적영향회강저；량조렬봉위저각도렬봉시，형성적망상렬봉대전류적조애능력교강。소득결론가위수평정망상렬봉형저층측정평개제공이론삼고。
The widespread net?shaped fracture reservoirs have good reservoir capacity. The dual laterolog can recognize fractures effec?tively. The dual laterolog logging response within the net-shaped fracture reservoir was simulated through the 3?D finite element meth?od, with emphasis placed on the influence of logging response such as fluid resistivity, bedrock resistivity and fracture dip. The results show that the apparent resistivity increases with the increasing fluid resistivity in the fracture, but the rate is pretty small. The apparent resistivity increases with the increasing bedrock resistivity, but this kind of influence will decrease when the bedrock resistivity is very small. The net-shaped fractures formed by the low angle fractures often hinder current strongly. The conclusions above can provide the?oretical reference for the horizontal well bore logging evaluation with the net-shaped fracture reservoir.