Plunger rock sample oil saturation nondestructive measurement method and device

A measurement method and saturation technology, which is applied in the direction of measurement devices, instruments, and nuclear magnetic resonance analysis, etc., can solve problems that do not involve the measurement of oil saturation of rock samples, and achieve the effect of protecting from damage

Pending Publication Date: 2021-07-16
PETROCHINA CO LTD
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Problems solved by technology

[0004] But this standard involves NMR porosity, T 2 The laboratory acquisition methods of parameters such as cut-off value and nuclear magnetic bound water are described, and the measurement of oil saturation of rock samples is not involved.

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  • Plunger rock sample oil saturation nondestructive measurement method and device
  • Plunger rock sample oil saturation nondestructive measurement method and device
  • Plunger rock sample oil saturation nondestructive measurement method and device

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[0068] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in deta...

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Abstract

The invention provides a plunger rock sample oil saturation nondestructive measurement method and device. The plunger rock sample oil saturation nondestructive measurement method comprises the steps of sampling and drying rock in a to-be-measured well to obtain a first plunger rock sample, obtaining the hydrogen content index of the crude oil sample corresponding to the first plunger rock sample, performing nuclear magnetic resonance analysis treatment on the first plunger rock sample to obtain a nuclear magnetic resonance T2 attenuation curve of the oil-containing plunger rock sample, performing saturated water treatment on the first plunger rock sample to obtain a saturated plunger rock sample, performing nuclear magnetic resonance analysis treatment on the saturated water plunger rock sample to obtain a nuclear magnetic resonance T2 attenuation curve of the water-containing plunger rock sample, and calculating the oil saturation of the plunger rock sample. According to the plunger rock sample oil saturation nondestructive measurement method and device, the measurement result is irrelevant to the physical property condition of the rock sample, the oil saturation of the rock sample can be accurately obtained, and meanwhile the plunger rock sample can be protected from being damaged to the maximum extent.

Description

technical field [0001] The invention relates to the technical field of rock sample saturation measurement, in particular to a plunger rock sample oil saturation non-destructive measurement method and device. Background technique [0002] When testing the physical and physical parameters of rocks in oil and gas exploration and development, such as the measurement of oil saturation, it is necessary to sample rocks. Generally, the sampled rocks are made into a column with a diameter of about 25.4mm and a length of 48-60mm. According to its shape characteristics, it is vividly called plunger rock sample. [0003] At present, the commonly used methods for measuring saturation include: atmospheric dry distillation, distillation extraction, solvent washing, and scanning. However, the atmospheric pressure carbonization method needs to break the plug rock sample, and the plug rock sample cannot be used for subsequent experiments after this experiment is carried out; although the dis...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N24/08
CPCG01N24/081G01N24/082
Inventor 肖承文周波吴刚柳先远李新城王华伟田隆梅王龙邱升梁信毅李楠李新罗燕颖
Owner PETROCHINA CO LTD
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