CAJ | 학술논문

应用电成像深入探讨苏里格气田某区块山西组储层裂缝类型、分布及其与试气效果之间的关系,识别并建立更为精细的沉积微相模型,解释古水流方向,开展综合性的沉积环境精细描述以还原地下储层真实沉积特征,加深对非常规天然气储层的认识和开发能力.研究表明,山西组储层多见天然裂缝,裂缝倾角分布在45°~90°之间,走向分布在75°~256°之间,在电成像板状交错层理砂体前积方向指示古水流方向分析的基础上,结合三维地震和重要电性参数综合分析,明确低渗气藏在强水动力、气测饱满、砂体电性及物性响应好的配置下,发育天然裂缝的储层捕获高产气井的几率较大.
응용전성상심입탐토소리격기전모구괴산서조저층렬봉류형、분포급기여시기효과지간적관계,식별병건립경위정세적침적미상모형,해석고수류방향,개전종합성적침적배경정세묘술이환원지하저층진실침적특정,가심대비상규천연기저층적인식화개발능력.연구표명,산서조저층다견천연렬봉,렬봉경각분포재45°~90°지간,주향분포재75°~256°지간,재전성상판상교착층리사체전적방향지시고수류방향분석적기출상,결합삼유지진화중요전성삼수종합분석,명학저삼기장재강수동력、기측포만、사체전성급물성향응호적배치하,발육천연렬봉적저층포획고산기정적궤솔교대.
Take Shanxi formation in some block in Sulige gas field as an example,this paper restored the real sedimentary characteristics and improved the understanding of the unconventional natural gas reservoir through the imaging logging fracture identification,the relationship between fracture and well testing, palaeocurrent direction analysis,and fine description of sedimentary micro-facies. The results shows,natural fracture is the mainly type of the target reservoir fracture,the average fracture dip angle is 45° 90°,and the average angle of fracture trend is 76° 256° . Based on sand progradational directions indicating the palaeocurrent direction,seismic interpreting and some important logging parameters,the reservoir with nature fracture should be get good production under strong hydrodynamics,good gas bearing in logging curves and sand properties.