METHOD FOR MONITORING AND CONTROL FOR OIL PRODUCER USING BATTERY SUPPLY IN WELL Russian patent published in 2014 - IPC E21B43/12 E21B47/12 E21B47/47 

FIELD: oil and gas industry.

SUBSTANCE: invention is related to oil industry and namely to monitoring and control for oil producer. The method for monitoring and control for oil producer with control of submersible pump parameters envisages monitoring of gas-liquid column parameters in the well in the area of submersible pump. To this end sensors are installed at the production string near the submersible pump. Results of measurements are delivered to the surface, processed and used for control of the submersible pump during oil recovery. At that monitoring of gas-liquid column parameters in the well is carried out at different levels, including position of dynamic level and its distance up to the submersible pump. The sensors are located at several fixed levels of the production string. Solid state batteries for self-sustained power supply are planned for installation at the production string. These capabilities and results are used for control of submersible pump capacity in order to maintain depression and parameters of gas-liquid column in the well corresponding to the balance between production rate of the formation or formations and recovery rate from the well at maximum permitted capacity of the pump.

EFFECT: improving production rate, oil recovery factor from the formation or several formations drained by the well due to direct measurement of gas-liquid column parameters at different levels, control of the submersible pump capacity and recovery rate considering the most favourable conditions for oil recovery.

13 cl, 2 dwg