渤海海区低阻油气层识别方法研究
发布时间：2019-06-06 11:06
【摘要】：低阻油气层是一种特殊的、隐蔽性极强的油气层,国内外将其定义为:油层电阻率小于或接近于围岩电阻率,或者与水层电阻率差别不大甚至出现相互交叉变化的不易识别的油气层;或定义为电阻增大率小于2的油气层。其本质问题是难识别性或隐蔽性,由于复杂的地质成因和形成条件,油层与水层在电性上难以准确区分,导致其识别评价难度较大,依靠传统的识别评价方法很容易低估或漏掉该类油气层。近年来,低阻油气层识别方法成为了研究的热点,而且也成为了油田勘探开发重点攻关对象之一。渤海海域的勘探历经几十年的历史,随着勘探认识的加深、勘探程度的不断提高,在一些地区陆续发现了较多的低阻油气层,经测试证实,许多低电阻率油气层具有较高的产能。因此,研究低阻油气层识别评价方法有着非常重要的实践意义。本文通过分析渤海海区低阻油层的表现特征、成因类型,以及不同电阻率油气层地化录井资料特征及影响程度对比研究,优选了地化录井技术识别低阻油气层敏感参数,形成一套适合不同成因的低阻油气层有效的识别方法和评价手段,在渤海海区得到了有效的推广和深化应用,为低电阻率油层测录井综合解释评价研究积累宝贵的经验和认识,在油气勘探和储量落实过程中发挥了重要作用。
[Abstract]:The low-resistance oil-gas layer is a kind of special, well-concealed oil-gas layer, and its definition is that the resistivity of the oil layer is less than or close to the resistivity of the surrounding rock, or the oil-gas layer which is not easy to be recognized by the difference of the resistivity of the water layer and the resistivity of the water layer does not even change with each other; Or an oil and gas layer defined as an increase in resistance of less than 2. The essential problem is difficult to identify or conceal. Due to the complex geological formation and formation conditions, the oil layer and the water layer are difficult to accurately distinguish between the electric property and the water layer, so that the identification and evaluation difficulty is large, and the oil-gas layer can be underestimated or missed by the traditional identification and evaluation method. In recent years, the identification method of low-resistance oil and gas layer has become the hot spot of the research, and has also become one of the key problems in the exploration and development of oil field. The exploration of the Bohai Sea is a history of several decades. With the deepening of the exploration and the increasing of the degree of exploration, many low-resistivity oil and gas layers have been discovered in some areas, and the tests confirm that many of the low-resistivity oil and gas layers have higher production capacity. Therefore, it is of great practical significance to study the evaluation method of low-resistance oil and gas layer identification. In this paper, by analyzing the characteristics of the low-resistivity oil layer in the Bohai Sea area, the origin type, and the characteristics of the geochemical logging data and the influence degree of the different resistivity oil and gas layers, the sensitive parameters of the low-resistance oil and gas layer are preferably identified by the geochemical logging technology. An effective identification method and an evaluation method for a low-resistance oil-gas layer with different origin are formed, and an effective promotion and deepening application is obtained in the Bohai sea area, and valuable experience and knowledge are accumulated for the comprehensive interpretation and evaluation research of the low-resistivity oil-layer logging well. It plays an important role in the process of oil and gas exploration and reserve implementation.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13
本文编号：2494318
[Abstract]:The low-resistance oil-gas layer is a kind of special, well-concealed oil-gas layer, and its definition is that the resistivity of the oil layer is less than or close to the resistivity of the surrounding rock, or the oil-gas layer which is not easy to be recognized by the difference of the resistivity of the water layer and the resistivity of the water layer does not even change with each other; Or an oil and gas layer defined as an increase in resistance of less than 2. The essential problem is difficult to identify or conceal. Due to the complex geological formation and formation conditions, the oil layer and the water layer are difficult to accurately distinguish between the electric property and the water layer, so that the identification and evaluation difficulty is large, and the oil-gas layer can be underestimated or missed by the traditional identification and evaluation method. In recent years, the identification method of low-resistance oil and gas layer has become the hot spot of the research, and has also become one of the key problems in the exploration and development of oil field. The exploration of the Bohai Sea is a history of several decades. With the deepening of the exploration and the increasing of the degree of exploration, many low-resistivity oil and gas layers have been discovered in some areas, and the tests confirm that many of the low-resistivity oil and gas layers have higher production capacity. Therefore, it is of great practical significance to study the evaluation method of low-resistance oil and gas layer identification. In this paper, by analyzing the characteristics of the low-resistivity oil layer in the Bohai Sea area, the origin type, and the characteristics of the geochemical logging data and the influence degree of the different resistivity oil and gas layers, the sensitive parameters of the low-resistance oil and gas layer are preferably identified by the geochemical logging technology. An effective identification method and an evaluation method for a low-resistance oil-gas layer with different origin are formed, and an effective promotion and deepening application is obtained in the Bohai sea area, and valuable experience and knowledge are accumulated for the comprehensive interpretation and evaluation research of the low-resistivity oil-layer logging well. It plays an important role in the process of oil and gas exploration and reserve implementation.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13
【参考文献】
相关期刊论文 前2条
1 魏兴华;;录井资料在识别低电阻率油层中的应用[J];断块油气田;2007年04期
2 李秀芬,葛玲,王刚;渤中—渤南地区油气多期运聚成藏的地球化学特征[J];中国海上油气.地质;2001年01期
，本文编号：2494318
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