Experimental equipment of PSCCL

Microscopic visual simulation system for sand production with weak-consolidated core （China patent NO. ZL201710931454.4）

Middle scale visual simulation system for sand production with different well type 

Visual simulation apparatus for sand retention and evaluation（China patent NO. ZL201110151970.8）

The equipment could be utilized on radial flow sand control displacement, and the aim is on screen evaluation and the performance of gravel layer. The functions are exhibited as below:

　(1) To evaluate the circulation property, sand-blocking ability and anti-clogging property in sand　control screens.

　(2) To evaluate the circulation property, sand-blocking ability and anti-clogging property in gravel layers

　(3) To evaluate flowing pressure drop in resistance layer as gravel layer inside the screen, perforation holes in gravel layer and the screens.

　(4) To simulate combined conditions including perforation, open hole, sanding screen sand　control and gravel fillup sand　control.

　(5) Other test and evaluation functions.

Sand control simulation and evaluation system for high TP and thermal oil production

The equipment is made to observe and detect the sand-blocking properties of different media, and other functions listed below:

　(1) Observe the micro sand-blocking and screening process and analyze the principles.

　(2) Measure the sieve-opening sine and anti-clogging property of screening media.；

　(3) Measure the flowing pressure drop of different media.

　(4) To optimize sand-blocking parameters through experiment.

Real-scale branch well gravel-packing simulation system

The experiment equipment is a full-size simulation device, mainly applied on indoor simulation process of gravel filling up in deviated well. During the experiment, the changing condition of fillup process and α wave bed height prediction could be obtained under varied parameter situation such as wellbore inclination, sand ratio, filtration strength and so on. At the same time, the impact of gravel fillup principle in deviated well, different inclination angle and pumping parameters on dynamic filling state and performance would be studied profoundly.

The equipment could be applied on parameter optimization and dynamic state control in high-deviated well, and offer technical support for on-site planning and construction.

Experimental apparatus of solid particle feedback production in sandstone reservoir with frac-pack

Simulation system of Gravel-Packing and Frack-packing

Aiming at horizontal well in loose sand reservoir, destruction fillup of fracturing and plastic extrusion are brought up under high pressure squeeze pumping condition. The equipment would be applied to simulate the process of plastic extrusion.

Dynamic testing system of screen corrosion （UPC-CPOE United Laboratory）（China patent NO.  ZL201810805289.2）

Testing and evaluation system for screen erosion（China patent NO. ZL201811481487.4）

Wellbore flowing simulation system for gas-liquid-sand multi-phase flow and sand carrying

With transparent simulation wellbore, the equipment could be used to study gas-liquid-solid three phase flow characteristics indoor. By observing and measuring, the stability, sand-carrying ability and fracture in different phases would be obtained. In this way, the purpose of formulation optimization, drilling hydraulic calculation and planning will be fulfilled. The functions are presented:

      (1) To conduct single phase flow experiments like gas and liquid, and measure flowing pressure drop.

      (2) To conduct double phase flow experiments as gas-liquid, gas-solid and liquid-solid, to observe flow pattern and measure flowing pressure drop.

      (3) To conduct gas-liquid-solid three phase flow experiment, to observe flow pattern and measure flowing pressure drop.

      (4) To conduct gas/liquid sand-carrying experiment, and measure critical sand-carrying gas/liquid volume and maximal sand volume with determined gas/ liquid volume.

      (5) To conduct sand-carrying principle experiment with gas-liquid fluid mixture.