花岗岩储层测井解释方法研究及应用

doi:10.6038/pg20170536

地球物理学进展 ›› 2017, Vol. 32 ›› Issue (5): 2120-2125.doi: 10.6038/pg20170536

花岗岩储层测井解释方法研究及应用

肖玉峰, 石强, 陈鹏, 王秀芹, 刘凤新

中国石油勘探开发研究院, 廊坊 065007

收稿日期:2017-02-13 修回日期:2017-08-02 出版日期:2017-10-20 发布日期:2017-10-20
作者简介:肖玉峰,男,1983年生,工程师,主要从事测井解释方法及测井地质综合评价研究.(E-mail:xyfeng69@petrochina.com.cn)
基金资助:
国家重大科技专项“大型油气田及煤层气开发”（2011ZX05007-006）资助.

Research and application of logging interpretation method for granite reservoirs

XIAO Yu-feng, SHI Qiang, CHEN Peng, WANG Xiu-qin, LIU Feng-xin

Research Institute of Petroleum Exploration & Development, Langfang 065007, China

Received:2017-02-13 Revised:2017-08-02 Online:2017-10-20 Published:2017-10-20

摘要/Abstract

摘要：

针对花岗岩储层非均质性特点，采用了三重孔隙结构解释模型对其进行解释评价.该模型的储集空间包括基质、裂缝和孔洞三部分，随着储集空间的变化，可将该模型转化为孔隙型储层解释模型、孔洞型储层解释模型和裂缝型储层解释模型，这样就可适应多种储层性质的解释需要.由此利用常规测井资料计算了花岗岩储层的总孔隙度、基质孔隙度、孔洞孔隙度和裂缝孔隙度，利用岩心和电成像测井对裂缝孔隙度和孔洞孔隙度的计算结果进行标定和验证，并根据这些参数划分储层类型，计算含油气饱和度，划分油气水层.含油气饱和度的计算是采用反映储层孔隙结构变化的孔隙结构指数变m值，使阿尔奇公式适用于非均质花岗岩储层含油气饱和度的计算.应用上述测井解释方法，对目标井进行精细处理解释和综合评价，取得了很好的应用效果.

Abstract:

For the heterogeneity of granite reservoirs, a logging interpretation model of triple pores structure is used to interpret and evaluate the reservoirs. The reservoir spaces in the model are made up of matrix, vug and fracture. As the pore spaces change, the model can be transformed into different types to interpret porous reservoir, vug reservoir and fractured reservoir, thus applicable to the interpretation of a variety of reservoirs. Conventional logging data are used to calculate lithology, total porosity, matrix porosity, vug porosity and fracture porosity of granite reservoirs. The results of fracture and vug porosity could be calibrated and examined via core data and electrical imaging logging. These parameters can be used to determine the types of granite reservoirs, calculate oil and gas saturation and divide oil layers, gas layers as well as water layers. The variable m value as the exponent of pore structure that reflects the changes of the pore structure in complex reservoirs, is used to calculate oil and gas saturation. This makes the Archie formula applicable to calculation of hydrocarbon saturation in heterogeneous granite reservoirs. The logging method produces good application results through fine processing, interpreting and evaluating target wells. Thereupon, good application results have been acquired by the application of the above mentioned logging method which is valid to target wells' precise procession, interpretation and overall evaluation.

中图分类号:

P631

肖玉峰, 石强, 陈鹏, 王秀芹, 刘凤新. 2017. 花岗岩储层测井解释方法研究及应用. 地球物理学进展, 32(5): 2120-2125. doi: 10.6038/pg20170536.

XIAO Yu-feng, SHI Qiang, CHEN Peng, WANG Xiu-qin, LIU Feng-xin. 2017. Research and application of logging interpretation method for granite reservoirs. Progress in Geophysics. 32(5): 2120-2125. doi: 10.6038/pg20170536.

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花岗岩储层测井解释方法研究及应用

Research and application of logging interpretation method for granite reservoirs

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