根据分隔式井下增压器整体结构设计原则,给出主要结构参数的数学表达式和计算方法,由增压钻井液流量和隔膜对活塞速度的限制,计算了活塞的直径和长度,并确定了超高压泵活塞几何参数强度限定条件;根据爆玻失效准则设计并计算了超高压泵缸体壁厚;设计了满足工作条件的隔膜腔结构,推导出了其结构参 According to the design principle of the overall structure design of the divided downhole supercharger, the mathematical expressions and calculation methods of the main structural parameters are given. The diameter and length of the piston are calculated from the flow rate of the pressurized drilling fluid and the limit of the piston speed of the diaphragm. According to the failure criterion of blasting glass, the wall thickness of the ultrahigh-pressure pump cylinder is designed and designed. The diaphragm cavity structure which meets the working conditions is designed and the structure parameter is deduced