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在油田的石油开采中,稠油具有特殊的高粘度和高凝固点特性,埋藏浅,地层温度低,天然能量不足,随着采油速度降低,含水率升高,油气比下降,在开发和应用的各个方面都遇到一些技术难题。就开采技术而言,胶质、沥青质和长链石蜡的存在造成原油在储层和井筒中的流动性变差,为了改善稠油的开采效果,目前多数油田采取热采技术进行稠油开采开发,以最大限度的提高油田的采收率。本文通过介绍稠油油藏形成的物性特性、构造特点,结合蒸汽吞吐的技术原理,分析蒸汽吞吐开采稠油油藏的技术应用,为稠油油藏的开采开辟一项新技术。
In the field of oil exploration, heavy oil has the characteristics of high viscosity and high freezing point, shallow burying, low formation temperature and lack of natural energy. With the decrease of oil recovery rate, the increase of water cut and the decrease of oil-gas ratio, All aspects have encountered some technical problems. In terms of mining technology, the presence of colloids, asphaltenes and long-chain paraffins causes deterioration of the fluidity of crude oil in the reservoir and wellbore. In order to improve the recovery of heavy oil, most oilfields currently use thermal recovery technology for heavy oil recovery Development, to maximize the recovery of oil fields. In this paper, by introducing the physical properties and structural features of heavy oil reservoirs, combined with the technical principles of steam huff and puff, this paper analyzes the technical application of steam huff and puff in the exploitation of heavy oil reservoirs and opens up a new technology for the exploitation of heavy oil reservoirs.