南阳凹陷黑龙庙地区砂砾岩体规模小,多期砂体叠置,沉积期次划分难,非均质性强、甜点区难以预测。为此,利用可视化技术对三维地震资料进行精细构造解析与古构造恢复,研究砂砾岩体成因。在对5口井层序地层划分基础上,依据砂组-砂体的沉积...南阳凹陷黑龙庙地区砂砾岩体规模小,多期砂体叠置,沉积期次划分难,非均质性强、甜点区难以预测。为此,利用可视化技术对三维地震资料进行精细构造解析与古构造恢复,研究砂砾岩体成因。在对5口井层序地层划分基础上,依据砂组-砂体的沉积旋回性与地震反射结构,划分砂砾岩体沉积期次;通过岩石物理分析与正演模拟明确砂砾岩体地球物理响应特征。通过井点处扇根、扇中、扇端地震反射特征与相同层位其他点处的地震反射特征进行相关分析,确定扇根、扇中、扇端的平面分布;实测砂砾岩体岩性、物性参数与波阻抗属性,交汇分析确定有效区分砂砾岩与泥岩的波阻抗属性的值域。依据高精度反演得到的波阻抗数据体,在砂砾岩体储层波阻抗值域及顶底反射层位控制下,求出有效储层厚度与分布,圈定砂砾岩体储层甜点区的范围。以此为依据在其甜点区上部署的HL1井日产油5.46 m 3,预测结果与实钻井一致。展开更多
A constraint to black hole(BH)accretion has previously been derived for the inner edge fixed at the innermost stable circular orbit(ISCO)and the innermost bound circular orbit(IBCO).This constraint is referred to as t...A constraint to black hole(BH)accretion has previously been derived for the inner edge fixed at the innermost stable circular orbit(ISCO)and the innermost bound circular orbit(IBCO).This constraint is referred to as the mass-radius(MR)relation in this study,and the validity of the MR relation is discussed for different cases.It is shown that the product of the BH mass and the inner edge radius decreases monotonically in the accretion process for the inner edge located between IBCO and ISCO.In addition,we discuss the validity of the MR relation by considering the magnetic coupling(MC)effects of a Kerr BH with its surrounding disc.Although theoretically the product of the BH mass and the radius of ISCO increases(decreases)with time for a BH spin greater(less)than some critical value in the MC process,this relation is approximately valid for an Eddington accretion rate persisting for a rather long time,such as more than 10^(6)years.Finally,we discuss the possible application of the MR relation to astrophysics.展开更多
文摘南阳凹陷黑龙庙地区砂砾岩体规模小,多期砂体叠置,沉积期次划分难,非均质性强、甜点区难以预测。为此,利用可视化技术对三维地震资料进行精细构造解析与古构造恢复,研究砂砾岩体成因。在对5口井层序地层划分基础上,依据砂组-砂体的沉积旋回性与地震反射结构,划分砂砾岩体沉积期次;通过岩石物理分析与正演模拟明确砂砾岩体地球物理响应特征。通过井点处扇根、扇中、扇端地震反射特征与相同层位其他点处的地震反射特征进行相关分析,确定扇根、扇中、扇端的平面分布;实测砂砾岩体岩性、物性参数与波阻抗属性,交汇分析确定有效区分砂砾岩与泥岩的波阻抗属性的值域。依据高精度反演得到的波阻抗数据体,在砂砾岩体储层波阻抗值域及顶底反射层位控制下,求出有效储层厚度与分布,圈定砂砾岩体储层甜点区的范围。以此为依据在其甜点区上部署的HL1井日产油5.46 m 3,预测结果与实钻井一致。
基金Supported by National Natural Science Foundation of China under Grant No 10873005the Research Fund for the Doctoral Program of Higher Education under Grant No 200804870050the National Basic Research Program of China under Grant No 2009CB824800.
文摘A constraint to black hole(BH)accretion has previously been derived for the inner edge fixed at the innermost stable circular orbit(ISCO)and the innermost bound circular orbit(IBCO).This constraint is referred to as the mass-radius(MR)relation in this study,and the validity of the MR relation is discussed for different cases.It is shown that the product of the BH mass and the inner edge radius decreases monotonically in the accretion process for the inner edge located between IBCO and ISCO.In addition,we discuss the validity of the MR relation by considering the magnetic coupling(MC)effects of a Kerr BH with its surrounding disc.Although theoretically the product of the BH mass and the radius of ISCO increases(decreases)with time for a BH spin greater(less)than some critical value in the MC process,this relation is approximately valid for an Eddington accretion rate persisting for a rather long time,such as more than 10^(6)years.Finally,we discuss the possible application of the MR relation to astrophysics.
