论文部分内容阅读
在断裂垂向封闭机理及其演化过程分析的基础上,开展了断层垂向封闭性演化的定量研究。将断层垂向封闭性演化分为静止期和活动期2个阶段,利用断层面压力是否达到泥岩塑性变形极限,建立了静止期断裂垂向封闭性的定量评价方法;利用最大主压应力与断裂走向之间的夹角大小,建立了活动期断裂垂向开启程度的定量评价方法。以海拉尔盆地苏仁诺尔断裂为例,对其垂向封闭性演化史进行了定量研究,得到苏仁诺尔断裂西南部和东北部垂向封闭性演化明显存在差异,西南部活动开启时间和开启程度均长于和高于东北部,造成南一段源岩生成排出油气的散失量西南部应明显高于东北部,这可能是苏仁诺尔断裂东北部附近工业油气流井明显多于西南部的一个重要原因。
Based on the analysis of vertical sealing mechanism and its evolution process, a quantitative study on the vertical seal evolution of faults has been carried out. The vertical seal evolution of the fault is divided into two phases of stationary phase and active phase. Based on whether the fault plane pressure reaches the plastic deformation limit of mudstone, a quantitative evaluation method of vertical seal of static phase fault is established. By means of maximum principal compressive stress and fracture To the angle between the size of the establishment of the active fracture vertical opening degree quantitative evaluation method. Taking the Suranenuoer fault in Hailar Basin as an example, the vertical sealing evolution history was quantitatively studied. The vertical sealing evolution of the southwestern and northeastern parts of the Suyurenuo fault was obviously different. The opening time and opening degree of activities in the southwest Both above and beyond the northeast, resulting in the southwestern part of the loss of hydrocarbon generation and discharge in the source rock of the southern part of the source should be significantly higher than the northeast, which may be an important reason that the industrial oil and gas wells near the northeast of the Su-Noon fault are obviously more than the southwest part the reason.