Patents

List of published patents.

Opportunistic Techniques for Production Optimization of Gas-Lifted Wells

Publication number: 20200399999

Abstract: A method for producing hydrocarbons in a gas lift well is disclosed. A gas lift rate of the well is monitored while producing hydrocarbons according to an initial gas lift performance curve. One or more well performance parameters for the well are monitored. Disturbances in the well are detected while monitoring the well performance parameters. Transience in the well is modeled. A new gas lift performance curve is derived based on the detected disturbances, the modeled transience, and the initial gas lift performance curve. An optimal allocation of gas lift is determined from the new gas lift performance curve. Hydrocarbons are produced using the determined optimal allocation of gas lift.

Type: Application

Filed: June 15, 2020

Publication date: December 24, 2020

Inventors: Marco De Mattia, Mahsa MEMARZADEH, Curtis J. HOLUB, Amr S. EL-BAKRY

Method and System for Unconventional Gas Lift Optimization

Publication number: 20200199977

Abstract: A method is provided for determining the frequency of a multi-rate well testing operation in a gas-lifted hydrocarbon well. A well performance characteristic of the well is monitored using single-rate well tests. The monitored well performance characteristic is compared to a current well model performance characteristic. If the monitored well performance characteristic differs from the current well model performance characteristic by less than a predetermined amount, an amount of gas is injected into the well based on the current well model performance characteristic. If the monitored well performance characteristic differs from the current well model performance characteristic by more than a predetermined amount, a multi-rate well test is initiated the results of the multi-rate well test are fitted to a revised well model performance characteristic, and an amount of gas is injected into the well based on the revised well model performance characteristic.

Type: Application

Filed: December 4, 2019

Publication date: June 25, 2020

Inventors: Marco DE MATTIA, Mahsa Memarzadeh, Curtis J. Holub, Amr S. El-Bakry