CAJ | 학술논문

在以往裂缝性碳酸盐岩酸化模拟的研究中，一般假设裂缝与基质均匀切割且将求解域离散为规则网格的形式，处理复杂形态的裂缝时会有较大困难。为了更加真实地模拟裂缝性碳酸盐岩的酸液流动过程，采用有限元网格对其求解域进行精细网格划分，使求解域更好地逼近各种复杂的裂缝形态，并且使用有限单元法进行模拟计算，实现对线性流和径向流酸化的模拟仿真，很好地解决了网格取向问题。结果表明，将有限单元法用以酸化模拟是可行的，为多孔介质内的精细酸化模拟提供了新方法。
재이왕렬봉성탄산염암산화모의적연구중，일반가설렬봉여기질균균절할차장구해역리산위규칙망격적형식，처리복잡형태적렬봉시회유교대곤난。위료경가진실지모의렬봉성탄산염암적산액류동과정，채용유한원망격대기구해역진행정세망격화분，사구해역경호지핍근각충복잡적렬봉형태，병차사용유한단원법진행모의계산，실현대선성류화경향류산화적모의방진，흔호지해결료망격취향문제。결과표명，장유한단원법용이산화모의시가행적，위다공개질내적정세산화모의제공료신방법。
In the previous research on simulation of fractured carbonate acidizing, it is generally assumed that the fractures cut the matrix uniformly and that the solution domain is dispersed into regular mesh pattern, which may ifnd it very dififcult to process fractures with complex shapes. In order to simulate the acid lfow response process of fractured carbonate more realistically, this paper uses ifnite element mesh to carry out ifne mesh division to its solution domain, so that the solution domain can better approach the various complex fracture shapes.In addition, ifnite element method is used to perform simulation, which realizes analog simulation of linear lfow and radial lfow acidization, favorably addressing the problem of mesh orientation. The results show that it is workable that ifnite element method is used for acid simulation, providing a new technique for ifne acid simulation inside porous media.