【作者】 韩继凡；

【导师】 冯文光； 刘维国；

【作者基本信息】 成都理工大学 ， 油气田开发工程， 2006， 硕士

【副题名】以洛带气田蓬莱镇组气藏为例

【摘要】 洛带气田蓬莱镇组气藏为常压低渗致密砂岩气藏，气藏内部小层多，单层砂体平面分布范围有限、单层薄，含气丰度低。储层特征非常复杂，具有低渗、低压、低产能、储量大、丰度底、非均质性强等特点。因此如何客观的评价洛带气田蓬莱镇组气藏的产能，为开发决策提供可靠的依据已成为该气藏开发过程中一项急需解决的难题。针对洛带气田复杂的地质特点，本文以气藏的静态特征为基础，结合动态特征，采取动静结合的方法对研究区域进行系统的分析。鉴于此，本文开展以下研究工作内容： 1、以气藏的地质特征为基础，结合测井、试井、岩心资料对储层进行分析和评价。 2、针对目前的压裂井，分别采用试井解释分析方法、产量递减分析法对压裂后产能进行评估。 3、结合蓬莱镇组气藏的开采特征，计算部分井的动态储量和可采储量。并对各个小层进行生产动态及生产潜力分析。采用物质平衡时间方程分析法求取单井控制储量。 4、最后对产能进行预测并分析其影响因素。 通过以上的研究分析表明洛带气田蓬莱镇组气藏还具有一定的开发部署和建产潜力。该气藏大部分气井必须采取压裂措施才能投产。气井产能受地质和工程因素的双重控制，影响气藏产能的地质因素是沉积相、气层厚度、孔隙度体积以及储能系数。影响产能的工程因素主要是水力压裂措施。如何稳压生产将是该气藏长时间稳产的关键问题。更多还原

【Abstract】 The Penglaizhen formation gas reservoir in Luodai gas field is a normal pressure and low permeability tight reservoir. There are a lot of small layers Inside of it, the extension of monolayer sand is limited, the thickness is thin and it has low gas abundance. The characteristic of reservoir is very complicated. Low permeability, low pressure, low productivity, larger reserves but low deliverability and strong heterogeneity are all its features. Because all of these, how to objectively comment the productivity in Luodai gas field has provided reliable gist, and it is a problem in dire need of being settled in the process of explore this gas reservoir. Aiming at complicated geological characteristic of it, this thesis based on the static state of gas field and combined with dynamic state features, adopted the way linking dynamic and static state to analyze researching area systemically. Due to all of this, the following researching work was developed in this thesis.1. Basing on the geological characteristic of gas reservoir and combining with logging; well testing and core data to analyze and comment layer reservoir.2. Aiming at the present fracturing well, well testing analysis and production decline is separately adopted to evaluate fracturing well after it was carried out.3. Combining with the exploration characteristics of Penglaizhen formation gas reservoir, quantity of dynamic reservoir and recoverable reservoir of part of the well was calculated. Production dynamic and potential of each small layer was analyzed. And using material balance with time equation to calculate recoverable reservoir controlled by single well.4. At last, the thesis predicted the productivity and analyzed its impacting factors.Through the above study and analyse, it indicates that the Penglaizhen formation gas reservoir in Luodai gas field is found still has some potential in developing deploy and establishing productivity. To produce gas, most of the gas reservoir must be taken fracturing measure. Geology and project affect the productivity of gas well. The geological factors are the sedimentary facies, the thickness of gas Layer, porosity and storage coefficient. The project factor is the measure of hydraulic fracturing. How to make pressure stabilization will be the key problem of the long time steady production.更多还原