Habibullayeva Shafag Adyshirin Development of methods for intensifying oil production and increasing the oil recovery coefficient of oil fields at late stage of development SUMMARY The maintenance of the specified volumes of oil production occurs
both due to the introduction of new ones into the development, and through
the intensification of selection at the fields that are in the late stage of
operation.
In this regard, the intensification of hydrocarbon production is one of
the main tasks of the oil and gas industry. This is especially true for
offshore oil and gas fields, for which the operation time is limited by the
service life of hydraulic structures.
The aim of the thesis is to increase the effectiveness of existing and
development of new methods to influence the well bottom zone and the
reservoir, taking into account the possibility of using them in the conditions
of offshore oil production, creating new effective compositions for limiting
water inflow, preventing and cleaning the well bottom zone and elevator
pipes from asphalt-resinous-paraffin deposits (ARPD).
To solve these urgent problems, new innovative technologies have
been developed to limit the water inflow, to combat ARPD in oil wells, and
recommendations have been made to improve the efficiency of the wells.
A method of thermo-chemical exposure is proposed, which allows
increasing the oil recovery of formations by increasing the area of impact
coverage.
A new method of microbiological impact on the reservoir has been
developed and a method has been created to select objects for the effective
implementation of geological and technical measures to enhance oil
recovery.
The implementation of the proposed technologies for limiting water
inflow and cleaning the lift pipes of wells from asphalt-resin-paraffin
deposits in the wells of the N.Narimanov named Asset (offshore
Azerbaijan) showed their efficiency and allowed for 1 month to produce an
additional 780 tons of oil and reducing of water production to 570 tons.