石油勘探与开发 >

2019 , Vol. 46 >Issue 2: 290 - 301

DOI: https://doi.org/10.11698/PED.2019.02.09

油气勘探

四川盆地磨溪地区寒武系龙王庙组缝洞型储集层分级评价及预测

  • 王蓓 ,
  • 刘向君 ,
  • 司马立强
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  • 1.西南石油大学,成都 610500;
    2.中国石油西南油气田公司勘探开发研究院,成都 610041
王蓓（1989-）,女,甘肃兰州人,西南石油大学在读博士研究生,中国石油西南油气田公司勘探开发研究院工程师,主要从事开发地质方面研究。地址：四川省成都市高新区天府大道北段12号,中国石油西南油气田公司勘探开发研究院,邮政编码：610041。E-mail: wangbei08@petrochina.com.cn

收稿日期: 2018-06-05

  网络出版日期: 2019-02-19

基金资助

中国石油天然气股份有限公司重大科技专项“四川盆地大型碳酸盐岩气田开发示范工程”“深层碳酸盐岩气藏高效开发技术”（2016ZX05052,2016ZX05015-003）

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Grading evaluation and prediction of fracture-cavity reservoirs in Cambrian Longwangmiao Formation of Moxi area, Sichuan Basin, SW China

  • WANG Bei ,
  • LIU Xiangjun ,
  • SIMA Liqiang
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  • 1.Southwest Petroleum University, Chengdu 610500, China;
    2.Research Institute of Petroleum Exploration and Development, PetroChina Southwest Oil and Gas Field Company, Chengdu 610041, China

Received date: 2018-06-05

  Online published: 2019-02-19

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摘要

利用四川盆地磨溪地区岩心、薄片、测井、地震、试井等资料,优选储集层分级评价参数,建立该区碳酸盐岩储集层多指标联合分级评价标准,明确优质储集层发育主控因素,结合FMI成像测井缝洞识别技术和储集层地震波形分类技术,有效预测了各级储集层空间展布。压汞实验明确研究区发育4类储集空间,利用优选的中值孔喉半径、缝洞发育带的有效孔隙度和有效渗透率、裂缝-溶蚀孔洞发育组合关系4个评价参数建立储集层分级评价标准,将研究区储集层分为Ⅰ级缝洞型优质储集层、Ⅱ级缝孔型中等储集层、Ⅲ级晶间孔型差储集层;结合构造位置、沉积相、后生成岩作用3个优质储集层发育主控因素,利用各级储集层地球物理响应特征和渗流特征,预测了各井区、各层段、各级别储集层展布。经钻井证实本次研究建立的分级评价标准和预测方法正确有效。图6表6参21

关键词： 四川盆地; 磨溪地区; 寒武系龙王庙组; 碳酸盐岩; 缝洞型储集层; 分级评价; 储集层预测

本文引用格式

王蓓 , 刘向君 , 司马立强 . 四川盆地磨溪地区寒武系龙王庙组缝洞型储集层分级评价及预测[J]. 石油勘探与开发, 2019 , 46(2) : 290 -301 . DOI: 10.11698/PED.2019.02.09

Abstract

By using core, thin section, well logging, seismic, well testing and other data, the reservoir grading evaluation parameters were selected, the classification criterion considering multiple factors for carbonate reservoirs in this area were established, and the main factors affecting the development of high quality reservoir were determined. By employing Formation MicroScanner Image (FMI) logging fracture-cavity recognition technology and reservoir seismic waveform classification technology, the spatial distribution of reservoirs of all grades were predicted. On the basis of identifying four types of reservoir space developed in the study area by mercury injection experiment, a classification criterion was established using four reservoir grading evaluation parameters, median throat radius, effective porosity and effective permeability of fracture-cavity development zone, relationship between fracture and dissolution pore development and assemblage, and the reservoirs in the study area were classified into grade I high quality reservoir of fracture and cavity type, grade II average reservoir of fracture and porosity type, grade III poor reservoir of intergranular pore type. Based on the three main factors controlling the development of high quality reservoir, structural location, sedimentary facies and epigenesis, the distribution of the 3 grades reservoirs in each well area and formation were predicted using geophysical response and percolation characteristics. Follow-up drilling has confirmed that the classification evaluation standard and prediction methods established are effective.

Key words： Sichuan Basin; Moxi area; Cambrian Longwangmiao Formation; carbonate rock; fracture-cavity reservoir; reservoir grading evaluation; reservoir prediction

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