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碳酸盐岩属于复杂岩类,其矿物组分多样,岩石结构复杂,测井响应微弱,利用单一的常规测井曲线解释碳酸盐岩岩性的结果常具多解性甚至难以识别。而多矿物模型则是以最优化解释为目标,在充分利用已有的测井信息的基础上,能够识别出多种矿物组分类型及其相对含量,从而到达较为准确识别碳酸盐岩岩性的目的。本文阐述了多矿物解释模型的原理、特点及其在碳酸盐岩岩性解释中的优势,并利用实例对模型进行了验证,取得了良好的效果。结果表明,多矿物模型是进行碳酸盐岩岩性解释的有效方法。
Carbonates are complex rocks with diverse mineral compositions, complex rock structures, and weak well logging response. The interpretation of carbonate lithology using a single conventional well log is often multi-solution or even difficult to identify. The multi-mineral model, on the other hand, is based on the optimal interpretation. Based on the existing logging information, a variety of mineral component types and their relative contents can be identified so as to arrive at a more accurate identification of carbonate rock Sexual purpose. In this paper, the principles and characteristics of the multi-mineral interpretation model and its advantages in interpretation of carbonate lithology are expounded. The model is validated by examples, and good results have been achieved. The results show that the multi-mineral model is an effective method to explain the lithology of carbonate rocks.