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随着油气井工程的发展,开发复杂地质特征油气藏和采用先进工程技术的成功率的提高,储层保护技术在油气勘探开发中已占有十分重要的作用,在某种程度上说,它已成为检验工程作业成功与否的标准,防止储层损害已经成为油气井作业及油气田开发优化的重要目标,是开发效益最大化的基本途径。近年来,国内外均高度重视油气层保护技术的发展和领域的拓宽。其中屏蔽暂堵技术是保护储层钻井完井技术的主要技术之一。本文介绍了采用理想填充新方法和采用分形维数来优选暂堵剂的新方法,对保护储层的钻井液暂堵方案进行优化设计。实验表明,采用新方法可进一步提高储层岩心的渗透率恢复值,有利于更好的保护储层。
With the development of oil and gas wells, the development of oil and gas reservoirs with complex geological features and the improvement of the success rate of adopting advanced engineering technologies, reservoir protection technology has played a very important role in oil and gas exploration and development. To a certain extent, it has It has become the standard to test the success of engineering work. Preventing reservoir damage has become an important goal of oil and gas well operations and oil and gas field development and optimization, and is the basic way to maximize development benefits. In recent years, both at home and abroad attach great importance to the development of oil and gas layer protection technology and the field of broadening. Among them, shielding temporary plugging technology is one of the main technologies to protect well drilling and completion technology. In this paper, a new method of ideal filling new method and selection of temporary plugging agent based on fractal dimension is introduced in this paper. The temporary plugging scheme of drilling fluid in reservoirs is optimized. Experiments show that the new method can be used to further improve the recovery value of reservoir core permeability, which is beneficial to better protection of reservoir.