Abstract: A system for extracting oil and gas includes at least one drilling rod having an elongated body and a working head positioned at the distal end of the elongated body, wherein the working head has a proximal end and a distal end, a first mechanical drilling device positioned at the distal end of the working head, a second mechanical drilling device position at the proximal end of the working head, a central laser emitter positioned at the distal end of the working head, at least one lateral emitter positioned on a side wall of the working head between the distal end and the proximal end, a fiber optic cable positioned within a lumen of the elongated body and coupled to the central laser emitter and the at least one lateral emitter, and a laser source coupled to and supplying a laser beam to the fiber optic cable.

Abstract: A system for extracting oil and gas includes at least one drilling rod having an elongated body and a working head positioned at the distal end of the elongated body, wherein the working head has a proximal end and a distal end, a first mechanical drilling device positioned at the distal end of the working head, a second mechanical drilling device position at the proximal end of the working head, a central laser emitter positioned at the distal end of the working head, at least one lateral emitter positioned on a side wall of the working head between the distal end and the proximal end, a fiber optic cable positioned within a lumen of the elongated body and coupled to the central laser emitter and the at least one lateral emitter, and a laser source coupled to and supplying a laser beam to the fiber optic cable.

Abstract: A method of developing oil and gas fields includes creating a well by mechanically displacing rock material via a drilling device, increasing a well diameter by impacting the rock material via laser beams emitted from a central emitter, and reinforcing inner walls of the well by impacting wall material via laser beams emitted from a lateral emitter. A system includes a drilling device with a hollow lumen and a central drilling head, at least one fiber optic cable positioned within the lumen, a laser source coupled to a proximal end of the cable, a central emitter positioned inside the central drilling head and coupled to a distal end of the cable, at least one lateral emitter positioned on a side wall of the drilling device and coupled to the cable, and a controller coupled to the central and lateral emitters for controlling at least one laser beam characteristic.

Abstract: A method for developing deposits and extracting oil and gas from formations is provided including pumping electrically conductive fluid under pressure into a first heating well and a second heating well, creating an electrically conductive zone between the first heating well and the second heating well, positioning at least one first electrical current source into the first well and at least one second electrical current source into the second well such that the first and second electrical current sources come into contact with the electrically conductive fluid, applying alternating current to the at least one first electrical current source and the at least one second electrical current source, and generating an electric arc in the electrically conductive zone.

Abstract: A method for increasing extraction of oil, gas and gas condensates from deposits includes the steps of pumping a working fluid into a well, wherein the working fluid is an organic solvent comprising at least one aromatic hydrocarbon, at least one carboxylic acid and at least one organic acid, adjusting a density of the working fluid based at least in part on a density of formation fluid, and adjusting a viscosity of the working fluid based at least in part on desired degree of penetration of the working fluid into surrounding formation layers.

Abstract: A method of developing oil and gas fields includes creating a well by mechanically displacing rock material via a drilling device, increasing a well diameter by impacting the rock material via laser beams emitted from a central emitter, and reinforcing inner walls of the well by impacting wall material via laser beams emitted from a lateral emitter. A system includes a drilling device with a hollow lumen and a central drilling head, at least one fiber optic cable positioned within the lumen, a laser source coupled to a proximal end of the cable, a central emitter positioned inside the central drilling head and coupled to a distal end of the cable, at least one lateral emitter positioned on a side wall of the drilling device and coupled to the cable, and a controller coupled to the central and lateral emitters for controlling at least one laser beam characteristic.

Abstract: A method for developing deposits and extracting oil and gas from formations is provided including pumping electrically conductive fluid under pressure into a first heating well and a second heating well, creating an electrically conductive zone between the first heating well and the second heating well, positioning at least one first electrical current source into the first well and at least one second electrical current source into the second well such that the first and second electrical current sources come into contact with the electrically conductive fluid, applying alternating current to the at least one first electrical current source and the at least one second electrical current source, and generating an electric arc in the electrically conductive zone.

Abstract: A method for increasing extraction of oil, gas and gas condensates from deposits is provided, including the steps of pumping a working fluid into a well, wherein the working fluid is an organic solvent comprising at least one aromatic hydrocarbon, at least one carboxylic acid and at least one organic acid, adjusting a density of the working fluid based at least in part on a density of formation fluid, and adjusting a viscosity of the working fluid based at least in part on desired degree of penetration of the working fluid into surrounding formation layers.