1. Re-select high-quality soluble materials. For the soluble bridge plug with problems, high-quality soluble materials can be re-selected to ensure its quality and performance meet the requirements.
2. Strengthen the management of construction operations. In the process of gas test, it is necessary to strengthen the management of construction operation, ensure that the operation is carried out according to the specified requirements, and avoid the seal failure of soluble bridge plug caused by improper operation.
3. Analyze the forming conditions in detail. Before gas testing, the formation conditions should be analyzed in detail to understand the structure and characteristics of the formation, so as to better select the appropriate soluble bridge plug and take corresponding measures to prevent seal loss.
4. Increase security measures. In the process of gas test, safety measures, such as cement plugging, can be added to enhance the sealing effect of soluble bridge plug, thus ensuring the smooth gas test.
The skills of gas testing are:
1. Reasonable selection of test objects: select representative oil and gas reservoirs for gas testing, and avoid selecting non-representative oil and gas reservoirs for gas testing. Through the analysis of geological data, we can understand the nature, distribution and thickness of oil and gas reservoirs, so as to determine the most representative oil and gas reservoirs for gas testing.
2. Selection of appropriate testing instruments: Select appropriate testing instruments according to the nature of oil and gas reservoirs and the parameters to be obtained. For example, for the self-injection gas layer, you can choose to use the self-injection gas cylinder for testing; For low permeability reservoirs, you can choose to use small fracturing or cement squeezing operations for testing.
3. Optimization of test conditions: During gas testing, it is necessary to optimize the test conditions, including reasonably controlling the concentration, viscosity and additives of fracturing fluid, and selecting appropriate proppant types and particle sizes. The optimization of these conditions can reduce the damage to oil and gas reservoirs and improve the testing effect.
4. Pay attention to construction operation details: During gas testing, pay attention to construction operation details, such as reasonable control of construction pressure, pumping speed and construction time. Paying attention to these details can avoid the damage to oil and gas reservoirs caused by improper operation and improve the gas testing effect.
5. Do a good job in data collection and analysis: do a good job in data collection and analysis during gas testing. The collected data include pressure, temperature, flow and other parameters, as well as the properties of oil, gas and water. By analyzing these data, we can understand the nature and characteristics of oil and gas reservoirs and provide basis for subsequent exploitation and production.
6. Maintain communication and coordination: maintain communication and coordination with geological engineers, process engineers and other personnel during gas testing. Through communication and coordination, we can better understand the nature and characteristics of oil and gas reservoirs, optimize the testing scheme and operation flow, and improve the gas testing effect and efficiency.