Open hole cement retaining device

The utility model relates to the technical field of petroleum downhole tools, in particular to an open hole cement retaining device. Comprising a setting tool and a retainer body, the upper end of the retainer body is detachably and fixedly connected with the setting tool, the setting tool comprises an upper central pipe column, the outer side of the upper central pipe column is sleeved with a pushing sleeve in a sliding and sealing mode, and an insertion pipe is fixed to the lower end of the upper central pipe column; the retainer body comprises a lower central pipe, an upper connector is fixed at the upper end of the lower central pipe, a setting set sleeve is sleeved on the outer side of the lower central pipe below the upper connector, and a lower connector is fixed on the lower central pipe below the setting set sleeve. The setting tool and the retainer body are arranged in a split mode, the setting tool can be recycled, and production cost can be reduced. 本实用新型涉及到石油井下工具技术领域，具体涉及到裸眼水泥承留器。包括坐封工具和承留器本体，承留器