386null null null null null null null null null null null null null nullS( 1981-) ,3,8E,pV(pV) ,VYaF?Z.E-mail: liujinhua0726 yahoo. com. cn Tel: 0514-87762388%/wqE刘金华1,2, 杨少春1, 陈宁宁1, 赵晓东1( 1.SFv()o,null 257061; 2.BS,225012)K1: 在理想化微构造模型基础上用微构造计算地层顶面曲率,利用储层微构造的曲率来研究火成岩储层中构造裂缝的分布与预测.以渤海湾盆地惠民凹陷中的商河油田商741井区沙三中亚段浅层侵入火成岩裂缝储层为例,利用储层裂缝微构造曲率预测法对储层裂缝进行研究,提出了在浅层侵入火成岩中利用曲率变化值来预测裂缝发育程度的曲率预测法的改良方法.结果表明:该方法在商741井区的应用较为理想,利用缝面比参数法对商741井区沙三中浅层侵入火成岩曲率变化值与裂缝发育的相关性进行了分析,相关系数R2 在0. 79以上.1oM: 火成岩油气储层; 微构造; 曲率; 裂缝; 缝面比参数ms|: TE 122null2+ 4DSM: AcI|: 1000-1964( 2009)06-0815-05Forecasting Method of Tectoclase in the Igneous ReservoirsUsing a Curvature of the MicrotectonicsLIU Jin-hua1, 2, YANG Shao-chun1, CHEN Ning-ning1, ZHAO Xiao-dong1(1. College of Geo-Resources and Information, China University of Petroleum, Dongying, Shandong 257061, China;2. Geology Research Institute Jiangsu Oilfield, Sinopec, Yangzhou, Jiangsu 225012, China)Abstract: Based on the idealized microtectonic model, the curvature of the upper surface of theformation was calculated, which was applied to research the distribution and forecast of frac-tures in the igneous reservoirs. Taking the intrusive igneous rock in shallow layer in the middleof the third member of Shahejie formation in Shang 741 area of the Shanghe oilfield, Huiminsag, Bohai Bay basin for an example, an improved method was proposed, which used the varia-bility value of curvature to replace the absolute value of curvature of the intrusive igneous rock.The results show that the application of this method in the Shang 741 well area is well. Thecorrelatability of the variability value of curvature and distribution of fracture was analyzed bythe fracture-areal parameter, and the correlation factor is above 0. 79.Key words: igneous reservoirs; microtectonics; curvature; fractures forecasting; fracture-arealparameterM,SBC7?(#va7?5,+YzZa?C,7?S=B/F/4 1-3 ,9B7?B1Z_ 4-5 ,9%1,s7?CBl.%,null null null null null null null null null null null null null null null null null null nullS:%/wqEm3nullMY1UiFig.3 Sketch map of the fracture-areal ratio parametersand fracture identification in the imaging log1;VYVd,9V9visual C+ +I4|d9.vds?C,9dTiB,?s,?1(d.2/wqELsQ4/?zZJB741u%,/wqEu?0S.u?0S,iOXgM,%zu.2null1uB741uzZ6JJH,H,_,2#2J,LH.J/ 4null5 null8186null null null null null null null null null null:%/wqE10- 4/mH%.3Hwq?u$741u3?u. 3u?wquM,?us745null2Z_H;?us742746BL;2?us741a74-7747B(m7).m7null741u?umFig.7 Forecasting of the favorable fractures developingarea in the mid-third member of Shahejie Formationnull nullVm7VA,Vwq?8d,?=sl,9VBwqvl?iM1.wqM?u, 2007, 12( 3) : 77-80.T ONG Heng-mao. Application of synthetic approachfor predicting reservoir fractures in GBEIBE oilfield J. Petroleum Exploration of China, 2007, 12( 3) :77-80.2I,.%/#NZE J.o, 2003, 24( 2) :175-180.ZhOU Xin-gui, DENG Hong-wen, CAO Cheng-jie,et al. T he methods for quantitative predictionand e-valuation of structural fissures in reservoir J . ActaGeoscientia Sinica, 2003, 24(2) : 175-180.3b,P,.dCZ J .F?, 2002, 23( 2) : 196-201.CHEN Qing-hua, LIU Ch-i yang, Wang Shu-xiang,et al. Study on carbonate fracture-cavitysystem statusand prospects J .Oil & Gas Geology, 2