Analyses and studies for the selection of the method of dual completion operation of wells in multi-layer fields

Abstract

Mandatory research and measurement complexes for monitoring development should cover evenly the entire area of the development object, the entire fund of observation wells. They should contain measurements of reservoir pressure for control and piezometric wells, measurements of reservoir and bottom-hole pressures, well flow rates for liquid, gas factors and water content of products for producing wells, measurements of wellhead injection pressures and injection volumes for injection wells, hydrodynamic studies of producing and injection wells in stationary and non-stationary modes, studies on the control of the oil and water contact, gas and oil contact, oil and gas saturation, technical condition of the wellbore by field-geophysical methods, selection and research of deep oil samples, surface rock products of wells (oil, gas, water). The paper considers in detail proposals to improve the system of collection, preparation and transport of natural, associated gas and condensate. The topic of operation of gas wells, the state and proposals for improving the system of gas and condensate collection and treatment, requirements for structures, drilling technology, the method of reservoir opening and well development on the example of the Altyguyi gas condensate field is touched upon. The choice and justification of the well design in accordance with the intervals of compatibility of the well section according to mining and geological drilling conditions based on the forecast curves of reservoir pressures and rock rupture pressures (combined pressure graph), as well as methods of primary and secondary opening of productive formations and their development are considered in detail.