利用湖北省荆州市1970—2016年日照、降水、温度及冬小麦生长期、产量数据,采用作物丰歉指数、气候适宜指数方法,开展了荆州市冬小麦产量动态预报,并对两种预报方法的效果进行检验.结果表明,丰歉指数方法的预报准确率高于气候适宜指数法,计算过程也相对简单.在产量预报精度不下降的前提下,4月10日可作为产量预报的最优预报日期.

在对燕山地区冀北坳陷和宣龙坳陷中元古界露头剖面实测、钻井岩心观察的基础上,综合岩石薄片、铸体薄片以及扫描电镜等资料进行综合分析后发现,研究区储集层岩性主要为白云岩,其次是灰岩,还有部分硅质岩、砂岩及角砾岩.储集空间由基质内的微观储集空间和相对宏观的缝、洞储集空间两大储集系统组成,其中宏观储集空间包括构造裂缝、层间缝、溶蚀缝、溶蚀洞(孔)、收缩缝和压溶缝6种类型,基质孔隙包括晶间孔、粒间孔、藻窗孔、微溶孔(缝)、微构造缝及微压溶缝6种类型.沉积环境、岩性、成岩作用和构造作用,是影响研究区储集空间的4个主要因素,其中构造作用、古岩溶作用是改善研究区储集条件的重要因素.

Despite the potential of carbonate oil and gas exploration is huge in China, but the understanding and study of Proterozoic carbonate reservoir layer are relatively weak, which is far from enough to support and open up new areas of exploration. Therefore, this paper researches the reservoir space types and controlling factors of the carbonate rock in Mesoproterozoic and Neo-proterozoic in Yanshan area. Based on the field measure and the core observation of Yanshan area in Mesoproterozoic and Neo-proterozoic, through comprehensive analyzing the thin sections and casts tone thin sections, and scanning electron microscope data, it can be found that the main developed reservoir is dolomite in the study area, the second is limestone, and siliceous rocks, sandstone and conglomerate angle, in addition, the reservoir space types include the matrix storage space and the relatively macro fracture and cave reservoir space of two systems. The influence factors of the carbonate reservoir space mainly include three aspects: sedimentary environment and rock types, tectonic action, and diagenesis. The tectonism, the paleokarstification and the high energy environment are the most constructive to the reservoir.

该研究综合运用复杂地表、近地表分析技术，火成岩屏蔽分析技术等，以高邮凹陷GD地区三维地震采集项目为依托，分析了地表、近地表条件对地震资料信噪比的影响，找出了近地表火成岩干扰是该区地震资料信噪比低的主要原因，进而开展了针对性研究，形成提高地震信噪比技术思路与对策，实现明显改善低信噪比地区地震资料品质的目的。

鄂尔多斯盆地演武-三岔地区是多油层叠合的含油富集区,但区块开发程度低,地质条件复杂,近年来油气勘探一直未能取得较大的突破.物源分析基于长8油层组三角洲沉积体系,对区内轻矿物组分、碎屑岩特征、重矿物特征、石英阴极发光及粒度特征等进行综合分析,结果表明演武-三岔地区主要受到西南部物源控制和影响,其母岩来自于西南部陇西古陆及南部秦岭的变质岩和酸性岩浆岩组合.