Case Study
Medium-Deep Ultra-Heavy Oil Steam Huff and Puff
Overcoming 8,201 mPa·s viscosity and frequent tubing workover risks.
Published on: June 2025
The Value
RMB 148,600
Comprehensive cost savings per well per year
74.58% / 179.33%
Daily oil increase / oil-steam ratio improvement
39.52%
Overall power consumption reduction
+25%
System efficiency improvement
At a Glance
Location
Dongying / Binzhou, China
Oilfield / Plant
Shengli Oilfield – Binnan
Well Conditions
Medium-deep ultra-heavy oil (pump setting inclination 7°), pump depth 1,102 m, artificial bottom 1,405 m
Recovery Process
Steam huff and puff
The Challenge
High viscosity, workover risk and low efficiency — multiple bottlenecks in medium-deep heavy oil development
High Viscosity, Late-Stage Stalling
Comprehensive water cut of 83%, sand content of 0.53%, and degassed crude dynamic viscosity of 8,201 mPa·s. Rod pumps tend to stall in late injection-production stages, severely constraining cycle capacity.
High Workover Risk
Unable to switch between injection and production without pulling the tubing string; the heavy insulated tubing increases workover risk.
Severe Leakage, Low Efficiency
Severe leakage and frequent cycle transitions reduce system efficiency and cycle oil-gas ratio.
Frequent Surface Maintenance
Conventional surface facilities require frequent maintenance, increasing operating costs and downtime risk.
Sand-Laden Production Difficulty
At 0.53% sand content, conventional lifting is prone to sand plugging, disrupting continuous production.
The Solution
HXBS deployed the Intelligent Tapered Progressing Cavity Pump System
A combined hardware-software approach that comprehensively upgrades the lifting process, targeting the multiple production bottlenecks of medium-deep heavy oil wells.
Enables injection-production integration without pulling tubing. Leverages the superior adaptability of progressing cavity pumps for heavy oil, extending late-stage system efficiency and injection-production cycles.
Tapered rotor-stator geometry enables adjustable clearance and sand-laden production, extending the pump inspection cycle.
Supports remote monitoring and automatic parameter tuning (e.g. auto pump efficiency adjustment); highly integrated surface facilities with a small footprint significantly reduce maintenance frequency.
Systems Used
Systems & Equipment Used
