Abstract: Fracturing pump valve box (2300, 2500 and 2800) for unconventional oil and gas fields is widely used in fracturing service for shale gas field development in Sichuan-Chongqing region. This series of new-type fracturing pump valve boxes is based on innovation of materials, structure and manufacturing process. The inner structure is suitable for double guide rod valve and the overall structure replaces dividing structure. With application of static pressure self-enhanced treatment technology, rolling treatment technology and shot blasting strengthening technology, the product is characterized for high pressure resistance, stabilization, high safety and long service life. It has a good ability against corrosion, alternating stress and fatigue stress in the harsh service environment of high pressure, large displacement and long time. The service life is raised by more than 200 hours under the work pressure of 70-105MPa. The work time surpasses the domestic product of the same kind by more than 30 percent, effectively lowering the service cost.

Key words: unconventional, oil and gas field service, fracturing pump valve box, service life

摘要： 适用于非常规油气田作业压裂泵阀箱(2300、2500、2800 型) 广泛应用于川渝地区页岩气田开发的压裂 施工作业。该系列新型压裂泵阀箱通过材料、结构、制造工艺的创新, 内腔结构采用适合双导向杆阀, 整体式结构取 代分体式结构, 并应用了静压自增强处理技术、滚压处理技术、喷丸强化处理技术, 具有耐( 超) 高压、工作稳定、 安全性能高、使用寿命长等特点。在高压力、大排量、长时间持续施工作业的恶劣工况中, 能够良好抵抗腐蚀及交变 疲劳应力, 在70~105MPa 工作压力下使用寿命提高到200 小时以上, 工作时间超过国内同类产品30%以上, 有效降低 了作业成本。

关键词: 非常规; 油气田作业; 压裂泵阀箱; 使用寿命