准噶尔盆地西北缘胜利区块勘探成效分析

Abstract

通过综合分析评价准噶尔盆地西北缘胜利区块地震施工、钻井部署及相关勘探技术的应用，表明主攻浅层超剥带的钻探成功率、勘探成效比较高，分析了盆缘斜坡带油气输导成藏的理论认识和勘探技术方法，形成了地震模拟方法外推确定毯缘地层岩性圈闭边界、“油亮点”技术及对于哈山深层复杂构造，野外露头、重、磁、电、震、钻井等资料相结合，建立山前带构造地质建模技术，有效指导了油气勘探。通过进一步论证下步勘探主要方向，明确车排子地区石炭系(C)、哈德构造山前带石炭–二叠系(C-P)是西北缘胜利区块深层勘探突破的主要方向，而车排子地区排10西三维区沙湾组(N1s)是下步扩大浅层勘探的主攻目标。 Through the comprehensive analysis of the seismic construction, drilling deployment and related exploration technologies of the northwestern margin of Junggar basin, it is shown that the drilling success rate and exploration efficiency of the overstrip are high. In this paper, the theoretical un-derstanding and exploration techniques of oil and gas transmission in basin slope are analyzed. The seismic simulation method is used to determine the boundary of rock trap boundary and the technology of “oil spot”, and for the complex structure of deep halaalate mountain, the field outcrop, heavy, magnetic, electric, seismic and drilling data are combined to establish the geological modeling technology of the front of the mountain, which effectively guided the exploration of oil and gas. By further demonstrating the next main direction, the carboniferous of Chepaizi and the carboniferous-permian system of ha-de tectonics belt have been established for the main direction of deep exploration in the Shengli Block of northwest margin of Junggar Basin. And the Shawan formation of Pai10 west 3rd seismic region of Chepaizi area is the main target of the next step to expand shallow exploration.