Title:
METHOD FOR DISTINGUISHING AUTHENTICITY OF HIGH-PRESSURE PHYSICAL PROPERTY PARAMETERS OF OIL RESERVOIR
Document Type and Number:
WIPO Patent Application WO/2020/155601
Kind Code:
A1
Abstract:
A method for distinguishing authenticity of high-pressure physical property parameters of an oil reservoir, comprising: collecting high-pressure physical property parameters, screening standard wells, calculating a pump efficiency by means of an equation, and then calculating an absolute value Δ = |ηtheoretical - ηactual| of each set of absolute errors, and taking the minimum absolute value Δmin of the absolute errors, Δmin being less than or equal to ε, ε being the set accuracy, and generally, ε being greater than or equal to zero and less than or equal to 0.02, the high-pressure physical property parameters corresponding to the set of (ηtheoretical, ηactual) being the actual high-pressure physical property parameters of the oil reservoir to be distinguished. The method provides a quick, simple and feasible means for distinguishing correct high-pressure physical property parameters, and can be applied to an oil well to be determined at a certain layer of the oil reservoir.
Inventors:
ZHENG HAIJIN (CN)
Application Number:
PCT/CN2019/099696
Publication Date:
August 06, 2020
Filing Date:
August 08, 2019
Export Citation:
Assignee:
YANGZHOU JIANGSU OILFIELD RUIDA PETROLEUM ENGINEERING TECH DEVELOPMENT CO LTD (CN)
International Classes:
E21B49/00
Domestic Patent References:
| WO2002057596A1 | 2002-07-25 |
Foreign References:
| CN109869144A | 2019-06-11 | |||
| CN103498661A | 2014-01-08 | |||
| CN2716505Y | 2005-08-10 | |||
| CN203145933U | 2013-08-21 |
Attorney, Agent or Firm:
NANJING ZHONGLIAN PATENT AGENCY CO., LTD. (CN)
Download PDF: