Edge Bottom Water Invasion Simulation Apparatus
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Solution Overview
Problem
Existing simulation methods for gas reservoir edge and bottom water invasion cannot effectively simulate both infinite edge and bottom water with sufficient energy and limited edge and bottom water with lower energy in the same experiment, leading to inaccurate representation of water invasion processes.
Innovation Solution
An edge and bottom water invasion simulation apparatus and method that uses a first intermediate container with a piston to separate formation water and inert gas, controlling the injection of gases and water to simulate the invasion process by adjusting pressures, allowing for the simulation of both scenarios within the same experiment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If constant pressure method is used to simulate infinite edge and bottom water with sufficient energy, then the water invasion process with high energy can be simulated, but the limited edge and bottom water with lower energy cannot be simulated in the same experiment
Solution Approach 1:
The patent applies the dynamics principle by making the intermediate container's water volume adjustable through a piston mechanism. The piston can be moved to change the volume of formation water in the intermediate container, allowing the system to dynamically adapt between simulating infinite water conditions (larger water volume) and limited water conditions (smaller water volume) within the same experimental apparatus, thereby resolving the contradiction between adaptability and device complexity
Solution Approach 2:
The patent implements parameter changes by adjusting the volume of formation water in the intermediate container through piston displacement. By changing this key parameter, the same experimental system can simulate different edge and bottom water scenarios (infinite vs. limited water) with different energy levels, achieving versatility without requiring multiple separate apparatus configurations
2Adaptability or versatility
If constant volume method is used to simulate limited edge and bottom water with lower energy, then the spontaneous flow process can be simulated, but the infinite edge and bottom water with sufficient energy cannot be simulated in the same experiment
Solution Approach 1:
The patent applies the dynamics principle by making the intermediate container's water volume adjustable through a piston mechanism. The piston can be moved to change the volume of formation water in the intermediate container, allowing the system to dynamically adapt between simulating infinite water conditions (larger water volume) and limited water conditions (smaller water volume) within the same experimental apparatus, thereby resolving the contradiction between adaptability and device complexity
Solution Approach 2:
The patent implements parameter changes by adjusting the volume of formation water in the intermediate container through piston displacement. By changing this key parameter, the same experimental system can simulate different edge and bottom water scenarios (infinite vs. limited water) with different energy levels, achieving versatility without requiring multiple separate apparatus configurations
Data Source
AI summary
The present disclosure provides an edge and bottom water invasion simulation apparatus and method, a storage medium, and a product. A controller controls an inert gas to be injected into a first intermediate container, and stops the injection. The controller controls formation water to be injected into the first intermediate container, and stops the injection. The controller controls the first intermediate container to be communicated with a core holder, and adjusts a pressure of a back pressure valve, so that the formation water enters a core to simulate edge and bottom water invasion. In the present disclosure, by adding the inert gas and the formation water to the intermediate container, an infinite edge and bottom water with sufficient energy at an early stage of a water invasion and a limited edge and bottom water with lower energy at a later stage of the water invasion can be effectively simulated.