Sand prevention and control simulation experimental device
Sand prevention and control simulation experimental device
The sand prevention and control simulation experimental device mainly consists of a liquid supply circulation system, a gas supply circulation system, a screen pipe test high-pressure material model system, a high-pressure autoclave inner cylinder sand-filling mold, a core preparation system, a testing system, and a data acquisition system. The instrument has a maximum design working pressure of 12 MPa and a working temperature range of 15~150°C. During operation, the temperature and pressure can simultaneously reach the upper limit of temperature and pressure. The instrument is mainly aimed at oil and gas wells in different reservoirs, and conducts sand production simulation experiments under different sand control accuracy conditions for different completion methods (bare hole + sand control pipe, gravel packing + sand control pipe), so as to optimize the completion and sand control methods for specific reservoirs, optimize the sand control accuracy of the sand control pipe and the gravel packing size, and study the changes in sand control effect and production capacity.
| Technical Parameters | |
| Maximum output pressure of the liquid supply circulation system | 7 MPa, maximum output flow rate: 1 m³/h |
| Maximum gas supply pressure of the gas supply system | 7 MPa; Medium: Air |
| Maximum gas supply volume | 3 m³/min |
| Working pressure of the screen pipe test high-pressure material model system | 0~12 MPa |
| Working temperature of the screen pipe test high-pressure material model system | 15~120°C |
| Rotation angle range | 0~90° |
| High-pressure autoclave dimensions | Inner diameter 350 mm, outer diameter 380 mm, length 1000 mm |
| Liquid storage volume | 1 m³ |
| Maximum pressure resistance of the gas storage tank | 10 MPa; Volume: 3 m³ |
| Automatic monitoring of liquid flow rate, flow meter measurement range | 0~1.2 m³/h, maximum inlet pressure of the flow meter: 10 MPa |
| Automatic monitoring of gas flow rate, flow meter measurement range | 0.05~3 m³/min, measurement accuracy: ±1.0% of the measurement range, maximum inlet pressure of the flow meter: 10 MPa |
| Lifting weight | 2T, lifting height: 3m |
| Pressure test accuracy | 0.1%; Flow test accuracy: ±1.0% of the range; Weight test accuracy: ±1.0% of the range |
Instrument functions
According to the formation core distribution data (PSD), artificial sand is configured, and the artificial sand is vertically loaded on the core machine according to the cementation strength of the formation rock to form an artificial core. The artificial core is placed in the experimental evaluation device to simulate the oil and gas well formation core layer, gravel layer, and casing wall, and the experimental oil is displaced outside the "artificial wellbore". The instrument can realistically simulate formation parameters such as temperature and pressure, and achieve the following measurements: achieve the detection of anti-blocking, reverse circulation cleaning, acid washing, and sand production of various combinations of different sand control media screen pipes under production fluid velocity conditions, such as perforation, bare hole, filter sand pipe sand control, and gravel packing sand control:
Evaluate the sand control effect and process of full-size screen pipes
Optimize different sand control screen pipes.
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