CN112132381A
|
|
Urban intelligent advertisement and propaganda cloud platform and use method thereof
|
CN111928117A
|
|
Natural gas pipeline accumulated liquid removing method and foam discharging agent injection equipment
|
CN112037080A
|
|
Quota establishment data processing method for petroleum professional engineering
|
CN111852464A
|
|
Measurement and calculation method for determining optimal economic and efficient development scale of gas field to be developed
|
CN112033481A
|
|
Gas well underground throttling two-phase metering device and method
|
CN111856575A
|
|
Method for improving prediction precision of thin sandstone reservoir
|
CN111832232A
|
|
Technical method for diagnosing and identifying accumulated liquid in pipeline
|
CN111764894A
|
|
Economic evaluation simulation comparison method based on tertiary oil recovery projects in different periods
|
CN111734372A
|
|
Method for quantitatively evaluating influence of water injection temperature on different oil reservoir development effects
|
CN111915170A
|
|
Petrochemical enterprise investment contribution degree evaluation method
|
CN111762833A
|
|
VOC (volatile organic compound) reduction gasification device for open pond sump oil
|
CN111762832A
|
|
VOC (volatile organic compound) reduction treatment device and method for open sump oil pool
|
CN111475766A
|
|
Exploration investment benefit evaluation method for oil and gas field development and construction project
|
CN111578144A
|
|
Novel adjustable unpowered notes mellow wine device
|
CN111563698A
|
|
Marginal contribution based economic evaluation method for oil field oil extraction process measure effect
|
CN111579014A
|
|
Integrated natural gas drainage metering valve
|
CN111539129A
|
|
Economic measuring and calculating method for petroleum resource amount of mature exploration area
|
CN111606472A
|
|
Cavitation air-float treatment method for oil extraction sewage
|
CN111473531A
|
|
Skid-mounted oil field well site light and heat circulation heating device
|
CN111484871A
|
|
Multifunctional small circulation swash plate cyclone integrated device
|