METHOD FOR DISTINGUISHING AUTHENTICITY OF HIGH-PRESSURE PHYSICAL PROPERTY PARAMETERS OF OIL RESERVOIRS

• Main Author: ZHENG, Haijin
• Format: Patent
• Language: English
• Published: 02.09.2021
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

A method for distinguishing an authenticity of high-pressure physical property parameters of oil reservoirs is provided. The method includes: collecting the high-pressure physical property parameters, screening a standard well, calculating a pump efficiency by means of formulas, then calculating an absolute value Δ=|ηtheory−ηreality| of each group of absolute errors, and taking a smallest absolute value Δmin of the absolute error. wherein Δmin≤ε, ε is a set accuracy, generally, 0≤ε≤0.02, and the high-pressure physical property parameters corresponding to a group of the theoretical pump efficiency ηtheory and the real pump efficiency ηreality are real high-pressure physical property parameters of an oil reservoir to be distinguished. The method provides a fast, simple and practical means for distinguishing correct high-pressure physical property parameters. The method is applicable to an oil well in a certain zone of an oil reservoir to be determined.