摘要
渤海油气勘探九十年代将转入以开发为重点的新时期。目前已探明18个油气田，控制储量数亿吨。探井和预探构造成功率都属高效率的勘探。今后的勘探可发现的局部构造按圈闭面积划分为大、中、小三个目标。已探明的储量主要集中在东营组的大型三角洲砂体和沙河街组一、二段的生物碎屑灰岩，主要油气圈闭类型为沉积期的披覆背斜和与断层有关的构造。用油田规模序列法预测油气资源量，可望再找到一批大、中型油气田。为此，必须力求高成效的勘探，掌握盆地的油气富集规律，同时降低勘探开发成本。
Exploration of oil and gas in Bo Hai will enter a new epoch in 90's and will focus on development geology.At present ,18 oil and gas fields are discovered and OOIP is as much as several billion tons.Success rate of exploration wells and pre-drilling structures proved the exploration highly efficient.Further exploration targets focus on the dicovered local traps which are classified as large,medium,and small by their closure areas.Discovered reserves are mainly in the large delta sand bodies of Dong Ying unit and the bioclastics of the first,second section of Sha Hejie unit,with main trap types of drapelike anticline in sedimentary period and fault-related structures.It is expected to find several large and medium oil and gas fields,from the results of oil and gas reserve predictions by sequence of oil field scale method.Therefore, much efforts have to be made so as to make exploration highly efficient,to grasp the laws of oil and gas enrichment in a basin,while to lower the cost of exploration and development.
出处
《中国海上油气（地质）》
1991年第5期1-8,共8页
China Offshore Oil and Gas(Geology)
