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四川盆地裂缝型油气藏确权含油气面积的确定
Determination of hydrocarbon bearing area of fractured reservoirs for rights confirmation in sichuan basin
黄 阳 张 彩 杨家静 杨 光 黄嘉鑫 曾云贤 杨 帆 程 钰 李 舫
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作者单位:中国石油西南油气田公司勘探开发研究院
中文关键字:井点外推法 探明储量 矿产资源确权 裂缝型油气藏 含油气面积 四川盆地
英文关键字:Well-point extrapolation method; Proved reserves; Rights confirmation of mineral resources; Fractured reservoir; Oil and gas-bearing area; Sichuan Basin
中文摘要:    在自然资源统一确权登记的系统中,油气探明储量作为重要的矿产资源纳入自然资源统一确权登记,推进矿产资源确权登记规范化,形成归属清晰、权责明确、监管有效的矿产资源确权登记制度,加强国家对矿产资源的保护与监管是非常重要和必要的。在矿产资源确权中,“确定含油气面积”是关键的技术点之一,中国石油西南油气田公司作为首批试点单位对其进行研究,通过对西南油气田公司113 个常规气田、2 个页岩气田,5 个油田的探明储量情况梳理,根据不同矿种、探明储量分布特征、规模大小,储层特征,油气藏类型等因素,优选出具有代表性的典型油气田进行分析,找出登记中的难点,并研究出解决方法:①针对容积法申报探明储量的油气田,采用探明报告中的面积作为确权面积;②针对动态法申报探明储量的裂缝型油气藏,采用井点外推法确定含油气面积。中国石油股份有限公司对多样化气田的矿产资源确权登记,根据“含油气面积方法”的研究,形成一套针对四川盆地油气探明储量特点的确权登记方法奠定基础,起到引领性的示范作用;同时为全国油气探明储量的矿产资源统一确权登记办法的最终制定提供典型案例与强力技术支撑,成为《矿产资源登记统计管理办法》(国土资源部令第23 号)的重要科学依据。
英文摘要:In a system of unified rights registration to confirm natural resources, the proved reserves of oil and gas, as important mineral resources, are included in this confirmation. It's quite necessary to promote the standardization of confirming this registration, establish a confirming system of mineral resources with definite jurisdiction, clear responsibilities and rights and effective supervision, and strengthen national protection and supervision. In the rights confirmation, "determining oil- and gas-bearing areas" is one of the key technical point. PetroChina Southwest Oil & Gasfield Company, as one of the first pilot units, carried out a lot of research on it. After analyzing the proved reserves of 113 conventional gas fields, 2 shale-gas fields and 5 oil fields subordinated by the company, several representative oil and gas fields were selected according to mineral type, distribution and size of proved reserves, reservoir characteristics and type, and other factors. Then, these representative fields were analyzed to find out some difficulty in registration. Finally, many solutions were made as follows. First, for some fields whose proved reserves are declared on the basis of volume method, the area shown in the proved report may be taken as a confirmed area. Second, for certain fractured gas reservoirs whose proved reserves are declared based on dynamic method, the oil- and gas-bearing areas are determined by means of well-point extrapolation method. PetroChina's rights confirmation registration in diversified gas fields according to the "oil- and gas-bearing area method" lays a foundation and plays a leading demonstration role in establishing a set of rights confirmation registration methods based on characteristics of proved reserves in Sichuan Basin. Moreover, it may not only provide typical cases and powerful technical supports to finally formulate the rights confirmation registration method of national oil and gas proved reserves, but also act as an important scientific basis of "Measures against the Administration of Mineral Resources Registration Statistics" (No. 23 order of the Ministry of Land and Resources).
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国内统一连续出版物号:CN51-1159/TE |国内发行代码: |国际标准出版物号:ISSN1673-3177 |国际发行代码:
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