噪声谱比法研究洛阳盆地的沉积层厚度     

檀玉娟  魏运浩  冯建林  宋金跃 《地质论评》2019,65(Z1):279-280

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综合压裂技术在低压致密气藏储层中的研究与应用   总被引：1，自引：0，他引：1  

秦玉英  陈付虎  王福平 《吉林大学学报(地球科学版)》2009,39(3):503-506

大牛地气田储层属于低压致密气层,非均质性强、孔喉直径小、毛管压力高、多层叠置且层间跨度不等导致储层保护和加砂压裂难度大。通过研究提出了采用液氮增能低伤害压裂液体系,降低对储层的伤害,有效地保护了储层;采用大型加砂压裂技术,增加了裂缝长度,扩大了泄气面积,提高了单层产量,气产量由200 m³/d提高到7.23×10⁴ m³/d;采用不动管柱连续分层压裂工艺技术实现了多层叠置气层均衡改造,压裂投产作业时间缩短了近67%,费用降低了20.69%。  相似文献   

额尔古纳成矿带景观(表生)地球化学特点与化探方法试验研究     

姜杉  明晋祥  许志新 《吉林地质》2005,24(2):50-54,71

化探对额尔古纳成矿带大型铜、钼、铅锌银矿床的发现起到了重要作用。本文重点论述不同景观（表生）地球化学特点及化探方法某些技术问题,对同类工作区开展化探工作有借鉴指导意义。  相似文献   

复杂地表条件剖分析射法静校正处理方法探索     

李晓斌常锁亮  杨晓东 《中国煤田地质》2006,18(2):55-56

通过分析在复杂地区使用常规静校正处理方法所暴露的问题，提出采用折射波垂直剖分法对地震资料进行静校正。首先建立近地表折射波剖分模型，用等问距或不等间距的垂向网格把折射波分成若丁个单元，每个单元的折射波速度近似为一常数，而不同单元间速度的变化则反映了整个近地表层速度的横向变化。在实际应用时可利用多张单炮记录相关正交求解速度。  相似文献   

Distribution of organic matter in rocks of the Bazhenov horizon (West Siberia)     

A.E. Kontorovich  E.V. Ponomareva  L.M. Burshtein  V.N. Glinskikh  N.S. Kim  E.A. Kostyreva  M.A. Pavlova  A.P. Rodchenko  P.A. Yan 《Russian Geology and Geophysics》2018,59(3):285-298

We studied the distribution of organic carbon in rocks of the Bazhenov horizon, a unique object of predominantly biogenic sedimentation in the West Siberian sedimentary basin. The contents of organic carbon in the rocks were determined using the data from 4094 core analyses and core-log relationships derived from 48,500 radioactive- and electrical-log measurements. For the Bazhenov and Tutleima Formations, both approaches gave the same results. The average content of organic carbon in the rocks is 7.7%. These data were used to compile a detailed map of the distribution of organic carbon contents in sedimentary rocks of the basin. It was shown that the average organic carbon content in the rocks increases from 2-4% on the periphery of the basin to 10-12% in its central, deepest part. The distribution of C_org values in the basin is highly asymmetric. The highest C_org values are observed in the southwestern part of the basin interior, where beds with > 10% C_org range in thickness from 5 to 12-15 m. In sections, the highest C_org values are observed in their middle and upper parts, composed predominantly of silicites and mixtites enriched in biogenic silica.  相似文献   

陕西省油页岩开发利用现状及对策     

李智学  李明培 《中国煤炭地质》2014,(3):12-14

陕西省油页岩主要赋存于三叠系延长组,目前地质勘查工作主要集中在铜川市印台区与宜君县、延安市黄陵与洛川、咸阳市彬县与旬邑及榆林市子洲、绥德等地。经地质调查和勘查探获油页岩资源量约221.69亿t,含油率0.2%~9.4%,发热量0.14~10.77MJ/kg,开发利用前景较好。针对油页岩的赋存特征和开发利用现状,提出了加大资源勘查力度、综合利用研究、加强矿山环境治理保护和完善相关规范制定的建议。  相似文献