钻井泵电缸驱动系统设计方案研究

Research on the design scheme of electric cylinder-driven system for drilling pumps

摘要:

传统钻井泵动力传输多采用曲柄连杆机构或液压传动方式，存在结构笨重、压力和流量脉动显著、施工作业排量不足、工作效率低等问题。基于深层超深层和非常规油气资源开发对钻井泵大排量、高效率的技术需求，讨论了新型钻井泵电缸驱动系统，该系统由动力、传动、执行及辅助四大模块组成，形成“动力+控制+辅助”协同的一体化动力传输系统，推动钻井泵驱动方式由传统的曲柄连杆向电缸驱动转变。该系统的提出，可以提高钻井泵传动效率、降低输出压力脉动、节约设备维护成本，能够精准适配油田作业现场钻井泵高负荷、大排量、连续作业的工况特征，为钻井泵向高效、智能、环保方向发展提供全新的技术路径。

Abstract:

The traditional power transmission of drilling pumps mostly adopts crank-linkage mechanisms or hydraulic transmission methods， which have problems such as heavy structure， significant pressure and flow pulsation， insufficient working volume for construction operations， and low efficiency. Based on the technical requirements for drilling pumps with large flow rates and high efficiency in the development of deep and ultra-deep well as well as unconventional oil and gas resources， this article discusses a new type of electric cylinder-driven system for drilling pumps. This system consists of four major modules： power， transmission， execution， and auxiliary. It forms an integrated power transmission system of "power+control+auxiliary" that works collaboratively， transforming the driving method of drilling pumps from the traditional crank-linkage mechanism to electric cylinder drive. The proposal of this system can improve the transmission efficiency of drilling pumps， reduce output pressure pulsation， save equipment maintenance costs， and precisely adapt to the working characteristics of high-load， large-flow， and continuous operations of drilling pumps at oilfield operation sites. It provides a new technical path for the development of drilling pumps towards efficiency， intelligence， and environmental friendliness.