井震结合在九区288断块克拉玛依组油藏构造和地层对比研究中的应用  

WELL SEISMIC APPLICATION IN THE STUDY OF STRUCTURE AND STRATIGRAPHIC CORRELATION IN KARAMAY FORMATION RESERVOIR IN WELL 288 BLOCK OF THE NINTH DISTRICT

作　　者：彭学红[1] 黄焕[1] 武鑫[1] 吴让彬[1] 

机构地区：[1]中国石油新疆油田分公司采油二厂,新疆克拉玛依834008

出　　处：《新疆石油天然气》2016年第1期39-44,共6页Xinjiang Oil & Gas

摘　　要：288断块油藏为低孔低渗油藏,储层物性差,油藏2005年实施开发后,未再进行构造、沉积等相关研究,油藏静态认识有待进一步深入。结合油藏开发生产规律及开发效果,利用井震结合相干分析、时间切片、层序地层学的旋回等时对比、砂体精细刻画等相关技术开展精细构造解释及地层精细对比研究。原认识为288井断块上倾为古42井断裂遮挡,克拉玛依组地层上部剥蚀,本次研究认为288井断块上倾为地层尖灭,克拉玛依组地层向北逐渐减薄,尖灭,超覆在古生界上。依据研究成果,目前已实施补孔1口,效果较好,日增油水平2.0 t;原认为S_1~1-S_3~3小层整体剥蚀,目前根据超覆沉积认为S_1~1-S_3~3小层油层发育,平均油层厚度1.8 m,具有补孔潜力,为后期改善油藏开发效果提供了可靠依据。Well 288 block belongs to low-porosity and low-permeability reservoir with a poor physical property.After the development in 2005,there's no other related research on structure,sedimentation,etc. The reservoirstatic knowledge needs to be further studied. Combined with reservoir development and production rules and de-velopment effects,we carried out the fine structural interpretation and fine stratigraphic correlation by using wellseismic coherent analysis,time slice,cycle time stratigraphic correlation equal of sequence stratigraphy,fine de-scription of sand body,and other related techniques. Original understanding considered that well 288 block up-per tilting was gu-42 well fracture occlusion and the upper strata of Karamay formation was eroded,while thisstudy thinks well 288 block tilt upperly to pinchout,and Karamay formation gets thinning and pinching out gradu-ally to the north overlapping the formation of Paleozoic. So far,according to the research,one reperforating wellhas been implemented and got good effection with a 2-ton average daily oil level. We also consider that oil zonedevelops in the S11-S33 layers with an average thickness of 1.8m,which has a potential to reperforate and providesa reliable basis for the further development of the reservoir.

关 键 词：井震结合 288断块 地层对比 顶部超覆 

分 类 号：P631[天文地球—地质矿产勘探]