Light hydrocarbon content recovery method and device

• Main Authors: TAO GUOLIANG, QIAN MENHUI, JIANG QIGUI, BAO YUNJIE, LI ZHIMING, SHEN BAOJIAN, LI MAOWEN
• Format: Patent
• Language: Chinese; English
• Published: 29.07.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention provides a light hydrocarbon content recovery method, which comprises the following steps: taking a part of a to-be-detected sample, and measuring the original free hydrocarbon content to obtain the original free hydrocarbon content of the to-be-detected sample; determining the porosity of the residual to-be-detected sample and the content of the rapidly-lost free hydrocarbon to obtain the porosity parameter of the to-be-detected sample and the content of the rapidly-lost free hydrocarbon; and fitting based on the original free hydrocarbon content, the free hydrocarbon content after rapid loss and the porosity parameter to obtain a recovery relational expression. By researching the light hydrocarbon loss process after the typical fresh rock core sample is placed, the relationship between the lost free hydrocarbon content and the physical property (porosity) of the sample as well as the original free hydrocarbon content is established, and the correction relationship is recovered according to the