METHOD FOR SIMULTANEOUS AND SEPARATE DEVELOPMENT OF TWO AND MORE FORMATIONS, AND PLANT FOR ITS IMPLEMENTATION Russian patent published in 2014 - IPC E21B43/14 

FIELD: oil and gas industry.

SUBSTANCE: formation existing in a zone of negative pressure created with a pump is pre-entered. Tubing is equipped with an insert with a damper on the formation location level, and therefore, entry of the product flow is provided from the formation through openings to the tubing cavity. Sensors constantly measure pressure on the mine face in the main formation and in the formation being developed additionally, and that pressure is maintained within the specified limits that are optimum for each of the formations being developed. Optimum pressure in formations is maintained by changing the product extraction value. Readings are transmitted by means of sensors to an opening value setting unit of the damper, the output of which is connected to its drive input. The damper is moved and opened, or openings in the insert wall are shutoff, which leads to the change of formation product takeoff value. By means of a flow metre arranged in one of two formations being developed, costs for the formations being developed are determined as per the known total volume of product extraction.

EFFECT: improving efficiency of the method and improving operating reliability of a plant due to their simplification.

3 cl, 1 dwg