FIELD: oil and gas industry.
SUBSTANCE: invention relates to the oil and gas industry and is intended to diagnose the near-wellbore zone of reservoirs in order to determine the saturation and phase state of hydrocarbons in reservoirs of gas and oil and gas wells with a complex of depth neutron methods. In the method that includes measuring the intensities of thermal neutron fluxes on two neutron-neutron logging probes for thermal neutrons 2NNLt and on two probes for epithermal neutrons – 2NNLet, and spectral intensity GRRC (gamma-ray of radiative neutron capture) spectrometric neutron gamma logging SNGL, the calculation of porosity function F(Kfp) and F(Kpnt), calculating the function from chlorine F(Cl), (Cl_st) is generated on cross plots from F(Kfp), F(Cl_sft) from F(Kfp), F (Cl_nnlt) from F(Kfp) dependencies and saturation functions chlorine F(CI_nnlt) and F (CI_ccn) is calculated, and the saturation parameters (PN) of the layers are calculated for the specified functions separately for the complex SNGL + 2NNLet and SNGL + 2NNLt according to the attached formulas.
EFFECT: technical result consists in expanding functional capabilities of neutron methods for determining the phase state of hydrocarbons and estimating saturation (PN) parameters of reservoirs with hydrocarbons at different distances from the production well of oil and gas wells using multi-probe neutron logging.
8 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR ESTIMATING COLLECTORS RESERVOIR PROPERTIES AND THE DEGREE OF THE MOBILITY OF HYDROCARBONS IN THE PRODUCTIVE SEDIMENTS OF OIL AND GAS WELLS | 2017 |
|
RU2672780C1 |
| METHOD OF DETERMINING THE PARAMETERS HYDROCARBON SATURATION IN RESERVOIRS OF OIL AND GAS CONDENSATE FIELDS AND EVALUATION OF THEIR FILTRATION AND CAPACITY PROPERTIES IN OIL AND GAS WELLS, CASED BY A FIBERGLASS COLUMN | 2018 |
|
RU2687877C1 |
| METHOD OF ASSESSING THE PHASE STATE OF HYDROCARBON FLUIDS IN POROUS SPACE OF OIL AND GAS CONDENSATE RESERVOIRS BY A COMPLEX OF NEURAL METHODS | 2018 |
|
RU2692088C1 |
| METHOD FOR ASSESSING OIL SATURATION OF RESERVOIRS IN CASED OIL AND GAS AND OIL AND GAS CONDENSATE WELLS WITH HIGH MINERALIZATION OF FORMATION WATER BY MULTI-METHOD MULTI-PROBE NEUTRON LOGGING - MMNL | 2023 |
|
RU2815325C1 |
| METHOD FOR DETERMINING SATURATION OF RESERVOIR BEDS OF OIL AND GAS WELLS AS PER SYSTEM OF NEUTRON METHODS (VERSIONS) | 2011 |
|
RU2476671C1 |
| METHOD FOR DETERMINING COMPOUND OF HYDROCARBONS IN RESERVOIR BEDS OF OIL-GAS WELLS | 2010 |
|
RU2439622C1 |
| METHOD FOR DETERMINATION OF LITHIUM IN RAPOSATURATED INTERVALS OF GEOLOGICAL SECTIONS OF WELLS OF GAS CONDENSATE FIELDS ACCORDING TO THE DATA OF MULTI-METHOD MULTI-PROBE NEUTRON LOGGING | 2021 |
|
RU2771438C1 |
| METHOD FOR CONTROL OF TIGHTNESS OF COUPLING JOINTS OF A PRODUCTION STRING AND DETECTION OF INTERVALS OF GAS ACCUMULATIONS IN OPERATING GAS WELLS WITH STATIONARY NEUTRON METHODS | 2019 |
|
RU2703051C1 |
| METHOD FOR DETERMINING THE COEFFICIENT AND BULK GAS SATURATION IN RESERVOIRS OF GAS WELLS BY TWO-PROBE NEUTRON LOGGING IN GAS-FILLED WELLS | 2017 |
|
RU2679766C2 |
| METHOD FOR NEUTRON-NEUTRON CEMENTOMETRY - NNK-C FOR QUALITY CONTROL OF CEMENTING WITH LIGHTWEIGHT AND REGULAR CEMENTS OF WELLS UNDER CONSTRUCTION AND THE STATE OF CEMENT STONE OF OPERATING OIL AND GAS WELLS FILLED WITH ANY TYPE OF TYPES | 2022 |
|
RU2778620C1 |
