粘球形藻是塔里木盆地奥陶系海相碳酸盐岩烃源岩和全球奥陶系烃源岩的重要生烃母质。根据粘球形藻干酪根的热解实验和化学反应动力学串联一级反应原理 ,可求出该干酪根任意生烃率时的表观活化能、指前因子等动力学参数。借此建立了化学动力学生烃强度和生烃量求取模型 ,并模拟计算了塔中 A井 O2 +3碳酸盐岩段在地质历史上的生烃强度和累积生烃量 Myxosphaeria is the important hydrocarbon generation parent material of Ordovician marine carbonate source rocks and Ordovician source rocks in the Tarim Basin. According to pyrolysis experiments of kyophosphata kerogen and chemical reaction kinetics tandem first-order reaction principle, the kinetic parameters such as apparent activation energy and pre-exponential factor of kerogen at any hydrocarbon generation rate can be obtained. Based on this, a model for calculating hydrocarbon generation intensity and hydrocarbon generation of chemical kinetics was established and the hydrocarbon generation intensity and accumulated hydrocarbon generation in the geological history of well O2 + 3 in A section of Tazhong were simulated.