CAJ | 학술논문

含油气盆地碎屑岩次生优质储集层的发育，除了与广泛发育的方解石胶结相有关外，在中国西部还有一类与沸石族自生矿物胶结的成岩相有关，其中以溶蚀方沸石胶结相形成的次生优质储集层与油气聚集成藏又有十分密切的关联。经实例分析：与自生方沸石胶结有关的成岩相主要受控于扇（辫状河）三角洲前缘相带、火山岩物源和成岩早期的碱性环境；次生优质储集层的形成在时间上主要处于成岩中期 A 阶段，在空间上受控于邻近的烃源岩、圈闭和输导体的沟通。方沸石矿物在物理性质上具有抗压易溶（有机酸）作用，较其他常见的自生矿物（胶结物）相对优越，就方沸石易于溶蚀的特点而言是较为理想的自生矿物（胶结物）。其溶蚀对孔隙度的贡献率在50％～75％之间，发育几率占绝对优势。所以，在方沸石发育的相带中寻找以粒间溶蚀孔为主的优质储集层，具有可靠的操作性和现实性。
함유기분지쇄설암차생우질저집층적발육，제료여엄범발육적방해석효결상유관외，재중국서부환유일류여비석족자생광물효결적성암상유관，기중이용식방비석효결상형성적차생우질저집층여유기취집성장우유십분밀절적관련。경실례분석：여자생방비석효결유관적성암상주요수공우선（변상하）삼각주전연상대、화산암물원화성암조기적감성배경；차생우질저집층적형성재시간상주요처우성암중기 A 계단，재공간상수공우린근적경원암、권폐화수도체적구통。방비석광물재물이성질상구유항압역용（유궤산）작용，교기타상견적자생광물（효결물）상대우월，취방비석역우용식적특점이언시교위이상적자생광물（효결물）。기용식대공극도적공헌솔재50％～75％지간，발육궤솔점절대우세。소이，재방비석발육적상대중심조이립간용식공위주적우질저집층，구유가고적조작성화현실성。
In petroliferous basin, the generation of high-quality secondary clastic reservoirs are linked with calcite cementation facies;and in western China,it is also related to another cemented diage-netic facies of authigenetic zeolite,of which the high-quality secondary formed by the corroded analcite fa-cies is closely connected with the hydrocarbon accumulation.It is showed by the examples that the diage-netic facies of analcite texture is controlled by the fan (braid river)-delta front,volcanic cinder and the alkaline condition in an eogenetic stage.The high-quality secondary clastic reservoirs were formed in stage A of middle diagenetic period.The distribution is decided by the source rocks nearby,traps and the con-nection of channel systems.The characters of analcite's pressure resistance, erodibility (organic acid ) are super to that of other authigenes minerals (cements).Therefore analcite is the ideal place for the de-velopment of induced porosity,and the ratio of emposieu to the porosity is 50%~75%.It is real and work-able to prospect high-quality secondary emposieu-oriented reservoirs formed by intergranular dissolution pores in the environment of analcite distributed area.