毕业设计（论文）-投捞式液体驱动射流泵采油装置设计精选.doc

投捞式液体驱动射流泵采油装置设计 摘 要：射流泵属于新兴学科—喷射技术，它是一种利用高速流体作为工作动力的流体机械和混合反应设备。射流泵本身没有运动部件，具有结构简单、密封性好、工作可靠和成本低廉等一系列独特的优点，在许多工艺流程应用中具有优越性和不可替代性，尤其在石油行业，射流泵技术的应用相当广泛。液体射流泵采油装置是利用射流原理将注入井内的高压动力液的能量传递给井下油层产出液的无杆水力采油设备，其结构紧凑，泵排量范围大，扬程可达500-3000m，可抽吸含腐蚀、含砂介质的原油和气液比较高的原油，可用于高凝油、稠油、高含蜡油井。在日常生产中维护、测试、调参简单，免修期较长，在油井产量变化时调节极为方便，投资和操作费用较低，对定向井、水平井和海上丛式井的油气举升有良好的适应性，特别适合面积小、资源有限的海上采油平台。 然而，固定式射流泵采油装置是将泵体固定在井下油套管中，无法单独取出，对于维修维护极其不便，当泵发生故障时，需要连同油管一起取出，维修成本较高。 为了解决这一问题，本文设计了投捞式液体驱动射流泵采油装置，该射流泵装置使用清水作为动力液，采用正循环方式，泵上设计有机械打捞头和液力打捞系统，泵由投捞部分（泵芯）和固定部分（底座）组成，底座连接在油管上，泵芯坐落在底座上。当需要时能够通过液力打捞或机械打捞将泵的投捞部分从油管中直接打捞出来，而不用取出油管。文章根据给定的工况数据计算设计出了射流泵的具体结构尺寸并验算了喷嘴出口压力和混合液反排到地面的压力，最后对泵进行了强度校核。 关键词：射流泵；采油；投捞式 The Design of Retrievable Hydraulic Jet Pump Equipments for Oil Production Abstract: Jet pumps are the result of a new subject—jetting technique. It is one kind of hydro-mechanism and hybrid reaction equipment. Jet pumps have no moving component. They have a series of unique advantages, such as simple structure, good sealability, dependable working and low cost. They have superiority and nonreplaceability in a lot of technological process, especially in oil vocation, in which jetting technique is widely applied. Hydraulic jet pump equipments for oil production is one kind of rodless hydraulic oil production equipment using the jetting law, which transmit energy from high pressure power fluid injected into the bottom of the well to oil. Jet pumps have tight composition and a wide range of delivery capacity and a 500 to 3000 meters head. They can pump crude oil with sand or with corrosive medium or with high gas fluid ratio. They are fit for tar oil well, heavy oil well and high wax-containing crude well. They are simply maintained and tested in daily production, and have long under stream period. They can be easily regulated when the output of well changes, leading low operating cost to investors. So jet pumps have good suitability to direction well, horizontal well and cluster wells at sea. Jet pumps suit for