致密油平台式“工厂化”水平井优化设计——以松辽盆地三肇凹陷肇源地区Y63井区扶余油层为例

松辽盆地三肇凹陷肇源地区扶余油层具有资源量大、储集层致密、普遍含油且连续分布的特点。但产能问题一直是制约该区致密油勘探开发的难点。针对肇源地区Y63“甜点”区，应用大量测录井、试油及化验分析资料，明确FⅡ₁砂层组“甜点”地质特征，通过地震属性、地质统计学反演，精细刻画“甜点”砂体边界，开展平台式“工厂化”水平井设计。实钻结果表明，已完钻6口水平井钻遇油层934~1 177m，平均为1 070m，与周边直井相比，提高产能5~12倍，证实平台式“工厂化”水平井部署方式的优越性和可行性。

“Factory-like” horizontal well plan optimization techniques in tight oil exploration：Case study of Fuyu oil-bearing layer of Y63 well block,northern Songliao Basin

In Zhaoyuan region of Sanzhao Depression, Songliao Basin, Fuyu oil layer is considerable resource potential, and its tight reservoir is continuous and extensively oil-bearing. How to improve the deliverability of tight reservoir, however, is still a major problem facing the explorationists. As for the sweet spot Y63 in Zhaoyuan region, this paper uses well logging, well testing and laboratory test data to identify the geological characteristics of FII₁, determine the sand body boundaries of the sweet spot by means of seismic attributes and geostatistical inversion, and then carry out batches of horizontal well plans on the same platform. The drilling result of five horizontal wells shows that the oil layer thickness has a range of 934-1 177m, with an average of 1 080m. By comparison with its adjacent straight wells, the deliverability of horizontal well is improved by a factor of 5-12. This proves the advantage and feasibility of the horizontal well plan proposed in this paper.