FIELD: oil and gas industry.
SUBSTANCE: method to detect hydrocarbon-containing beds in process of their opening with drilling includes pumping of an indicator fluid with radon into a pore volume of permeable beds in the area with thickness of 0.03-0.05 m from the well wall deep into the bed, for at least three times. Gamma-ray logging is carried out. The indicator fluid is displaced along the well bore, by pumping of 0.1 m3 of bore fluid from the wellhead to maintain initial concentration of radon in the indicator fluid. The given mathematical expression is used to judge on availability of hydrocarbon-containing beds.
EFFECT: improved accuracy of detection of promising hydrocarbon-containing beds in the open bore of the well after their opening.
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR REVEAL OF HYDROCARBON-BEARING BEDS | 2007 |
|
RU2375569C2 |
| METHOD OF ASSESSEMENT OF RESERVOIRS WITH ABNORMALLY HIGH PERMEABILITY | 2006 |
|
RU2351756C2 |
| METHOD OF DETERMINATION OF LOW-PERMEABILITY BEDS IN WELL BEING DRILLED | 2011 |
|
RU2499137C2 |
| METHOD OF DETECTION OF WATER-SATURATED AND OIL-SATURATED FORMATIONS IN DRILLED-IN PRODUCTIVE RESERVOIR | 1995 |
|
RU2079650C1 |
| METHOD TO IDENTIFY HIGHLY RADIOACTIVE CONTAINER ROCKS | 2011 |
|
RU2472184C1 |
| METHOD FOR EVALUATION OF ACTIVE VOLUME OF OIL-SATURATED PORES OF PRODUCING FORMATIONS | 1991 |
|
RU2069263C1 |
| METHOD FOR DETERMINING THE PROPORTION OF MOBILE RESIDUAL OIL OF MATURE PRODUCTION FIELD | 2022 |
|
RU2792463C1 |
| METHOD FOR DETERMINATION OF REMAINDER OIL SATURATION OF BEDS | 2003 |
|
RU2248444C2 |
| METHOD OF CONTROL OF GEOMETRIC AND HYDRO-DYNAMIC PARAMETRES OF FRAC JOB | 2008 |
|
RU2390805C1 |
| METHOD OF LOCATING OIL, GAS AND WATER-BEARING FORMATIONS AND RELEVANT DEVICE | 0 |
|
SU1721223A1 |
