轮古地区碳酸盐岩洞穴型储层充填程度的测井评价

doi:10.7623/syxb201104007

石油学报 ›› 2011, Vol. 32 ›› Issue (4): 605-610.DOI: 10.7623/syxb201104007

轮古地区碳酸盐岩洞穴型储层充填程度的测井评价

赵军 1,2 肖承文 3 虞兵 1 顾宏伟 3

1油气藏地质及开发工程国家重点实验室四川成都 610500； 2西南石油大学资源与环境学院四川成都 610500； 3中国石油塔里木油田公司勘探开发研究院新疆库尔勒 841000

收稿日期:2010-11-07 修回日期:2011-03-13 出版日期:2011-07-25 发布日期:2011-09-22
通讯作者: 赵军
作者简介:赵军，男，1970年10月生，1998年获西南石油学院博士学位，现为西南石油大学教授，主要从事油气测井、地质研究工作。
基金资助:
国家科技重大专项（2008ZX05049-02-004HZ）资助。

Logging evaluation on filling degree of cavernous carbonate reservoirs in the Lungu region

ZHAO Jun 1,2 XIAO Chengwen 3 YU Bing 1 GU Hongwei 3

Received:2010-11-07 Revised:2011-03-13 Online:2011-07-25 Published:2011-09-22

摘要/Abstract

摘要：

碳酸盐岩洞穴型储层是塔里木盆地轮古地区奥陶系油气稳产、增产的基础，对于洞穴型储层充填程度的判断是评价该类储层是否具有储集空间和有效性的关键。由于该类储层自身的复杂性，使得利用测井资料评价洞穴型储层充填程度仍然面临巨大的困难，目前的研究仍处于对其充填程度的定性评价阶段。笔者在利用交会图法和判别分析法建立洞穴型储层充填程度的定性评价图版基础上，结合数值模拟的成果，利用声波时差和自然伽马资料对洞穴型储层充填程度的定量计算进行了初步探索，提出了适合研究区储层洞穴充填程度计算的相关公式，提高了洞穴型储层充填程度的测井评价精度，对储层洞穴充填程度测井解释评价工作的开展起到了积极作用。

关键词: 塔里木盆地, 轮古地区, 洞穴型储层, 充填程度, 判别分析法, 声波时差, 自然伽马

Abstract:

Cavernous carbonate reservoirs play an essential role in stabilizing and increasing oil/gas production of the Ordovician System in the Lungu region, Tarim Basin. The determination of filling degree is a key to evaluate the potential and effectiveness of storage spaces for this kind of reservoirs. Due to the self-complexity of these reservoirs and the restriction of radial investigation of logging equipments, the evaluation on filling degree of these reservoirs by logging is still confronted with some difficulties and remains qualitatively. We set up charts of qualitative evaluation on filling degree of cavernous reservoirs based on the utilization of the cross plot and discriminant analysis, which, integrated with results of numerical simulation, can quantitatively calculate filling degree of cavernous reservoirs by applying acoustic transit time and natural gamma ray data. Correlation formulas applicable to calculating filling degree of reservoir cavities of the study area was consequently proposed. This approach obviously improved the precision of logging evaluation on filling degree of cavernous reservoirs and played an active role in logging interpretation and evaluation on filling degree of paleo-karst reservoirs.

Key words: Tarim Basin, Lungu region, cavernous reservoir, filling degree, discriminant analysis, acoustic transit time, natural gamma ray

赵军肖承文虞兵顾宏伟. 轮古地区碳酸盐岩洞穴型储层充填程度的测井评价[J]. 石油学报, 2011, 32(4): 605-610.

ZHAO Jun XIAO Chengwen YU Bing GU Hongwei. Logging evaluation on filling degree of cavernous carbonate reservoirs in the Lungu region[J]. Editorial office of ACTA PETROLEI SINICA, 2011, 32(4): 605-610.

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轮古地区碳酸盐岩洞穴型储层充填程度的测井评价

Logging evaluation on filling degree of cavernous carbonate reservoirs in the Lungu region

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