企业动态

Application Brief: Intelligent Conical PCP Artificial Lifting System for Integrated Injection-Production of Ultra-Heavy Crude

Recently, HXBS Technology Co., Ltd. (Wuxi) successfully completed a lifting operation for an ultra-heavy crude well at the Binnan Production Plant of Shengli Oilfield, Sinopec. This operation marks the first application of the Intelligent Conical PCP Artificial Lifting System in achieving integrated injection-production at a well depth exceeding 1,000 meters.

01、Background & Current Situation Analysis

The target well is a typical deep vertical ultra-heavy crude well with crude oil viscosity >10,000 mPa·s at 50°C.

• The original rod pump was prone to rod string creep-down and pump sticking, resulting in low production efficiency.

• The original lifting equipment required tubing tripping to switch between injection and production modes.

• Insulated tubing imposed a heavy load, posing high operational safety risks. Significant wellbore heat loss due to tripping operations shortened the injection-production cycle.

02、HXBS Lifting Solution

Tailored to the well conditions, the Intelligent Conical PCP Artificial Lifting System was deployed as the artificial lift solution, characterized by:

All-Metal Conical PCP:

• The stator and rotor employ a tapered variable-diameter geometry (wider top, narrower bottom), extending pump inspection cycles through compensation.

• Adapts to a wider range of heavy crude viscosities, prolongs injection-production cycles, and can further extend the lifting period at the end of the cycle via viscosity reducers.

• Proprietary manufacturing ensures robust reliability, enables effective pump sticking resolution, and eliminates differential thermal expansion effects between stator and rotor at high temperatures without impacting subsequent production.

Integrated Injection-Production:

• Innovatively designed surface drive and sealing mechanism enables rapid mode switching using an external crane or manual operation (requiring only 1 hour).

• Continuous sealing monitoring ensures well control safety during high-pressure steam injection.

Front & Back-End Control Systems:

• Integrates a self-developed edge computing module with automatic sand flushing, fault prediction, and adaptive pump efficiency adjustment.

• Cloud platform connectivity with downhole sensors enables real-time condition monitoring and dynamic parameter optimization.

03、Field Performance

Since commissioning on January 4, 2026, average daily liquid production increased from 8.1 m³/d to 14.6 m³/d, with stable water cut. Wellbore daily temperature decline rate was controlled at 0.3°C/d, showing a stable cooling curve.

Field Challenge: During initial trial operation, monitoring indicated localized flow restriction in the flow path. Through in-depth technical exchanges, the process expert team of Binnan Production Plant provided detailed field data analysis and process-structure guidance. HXBS responded proactively and implemented corrections, restoring normal production. We extend our gratitude to the Binnan Production Plant expert team for their guidance and support!

Short-Term Goal:In active response to the directives of Binnan Production Plant leadership, we are committed to achieving a continuous injection-production cycle of 200 days.