螺杆泵的历史较长,在30年代初期,在各行业得到了推广应用。50年代初期,螺杆泵被用作石油工业中的人工举升设备,并作为一种代替常规举升工艺的替代技术推向市场。从90年代中期起,螺杆泵在原油举升方面得到广泛应用。长庆油田采油二厂2011年起,开始试验性应用,取得了较好的效果。目前采油二厂产建新投井以三叠系丛式井组为主,气油比较高(90-110m3/t),且部分井存在硫化氢等有毒有害气体。新投井试油手段单一,仅依靠修井车的抽汲设备进行试油求产,而后安装抽油机及井口设备,下油管杆投产,工序复杂,且试油、投产过程中井口不密闭,易造成井喷、中毒及环境污染等事故。本文重点论述了螺杆泵的一种新型应用工艺,试采一体化采油作业。即采用螺杆泵在试油、采油过程中密闭、变频求产并直接连流程正常生产,可以大大简化作业工序,降低作业费用,提高安全生产系数。 Screw pump has a long history, in the early 1930s, has been promoted in various industries. In the early 1950s, screw pumps were used as artificial lift equipment in the petroleum industry and introduced to the market as an alternative to conventional lifting processes. From the mid-1990s, screw pumps have been widely used in crude oil lift. Changqing Oilfield Production Plant from 2011 onwards, began experimental applications, and achieved good results. At present, the new injection wells in the No.2 Plant of the Oil Production Plant are dominated by the Triassic Conglomerate Well Group with relatively high gas-oil ratio (90-110m3 / t) and toxic and harmful gases such as hydrogen sulfide exist in some wells. The new investment test means a single oil only rely on the extraction equipment for oil rigs to test oil production, and then install the pumping unit and wellhead equipment, the next production of oil pipe rod, the process is complex, and the test oil, the wellhead is not closed , Easily lead to blowout, poisoning and environmental pollution accidents. This article focuses on a new type of screw pump application process, trial production of integrated production operations. That the use of screw pump in the test oil, oil production process closed, the frequency of production and directly connected to the normal production process, can greatly simplify the operation processes, reduce operating costs and improve safety factor.