Device and method for oil-gas-water three-phase quantitative and hermetical sampling for indoor experiment

An oil-gas-water and experimental technology, applied in the field of resources and environment, can solve the problems of complicated sampling operation procedures, waste of oil-gas-water, sample waste, etc. short time effect

Active Publication Date: 2015-03-25
CHINA PETROLEUM & CHEM CORP +1
View PDF8 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, during the sampling process of the produced fluid in laboratory experiments, the pressure of the sample will suddenly release and drop to atmospheric pressure, resulting in changes in the microbial community structure in the produced fluid, and the test results cannot truly and objectively reflect the community structure in the formation water under high-temperature and high-pressure reservoir conditions; The exposure of the output liquid to the air destroys the original anaerobic environment, causing the oxygen in the air to partially dissolve into the production liquid, making the redox potential test results inaccurate; at the same time, due to the limited pore volume of the main body of the indoor simulation device, the indoor experiment sampling The amount is usually larger than the amount required for the test. On the one hand, it causes waste of samples. On the other hand, excessive sampling affects the seepage form of crude oil and water in the body.
[0004] After patent and literature search, the patent number is "ZL91109848", and the name is "Suspension Sampling Method and Device", which introduces a me

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device and method for oil-gas-water three-phase quantitative and hermetical sampling for indoor experiment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Using the device and method of the present invention to carry out indoor sampling during the one-dimensional physical simulation experiment of microbial flooding, indoor sampling requirements: the total amount of one-time sampling of oil, gas and water is not more than 100ml, the amount of crude oil is not less than 10ml, and the produced water is 50ml and Normal pressure gas volume 10ml, utilize the concrete steps of the present invention as follows:

[0044] (1) Collection of oil-gas-water mixture

[0045] Wet the inner wall of the sampler with surfactant before collecting oil, gas and water. After wetting, rotate the rotating rod to move the oil, gas and water piston of the sampler to the top of the sampler, then connect the sampling connection device, rotate the rotating rod at a uniform speed, and rotate During the process, observe the pressure of the pressure gauge on the top of the sampler. The oil-air-water mixture enters the sampler at a constant speed until th...

Embodiment 2

[0060] Using the device and method of the present invention to carry out indoor sampling during the three-dimensional physical simulation experiment of microbial flooding, indoor sampling requirements: the total amount of one-time sampling of oil, gas and water is not more than 200ml, the amount of crude oil is not less than 30ml, and the produced water is 80ml and Normal pressure gas volume is 50ml, utilizes the concrete steps of the present invention as follows:

[0061] (1) Collection of oil-gas-water mixture

[0062] Wet the inner wall of the sampler with surfactant before collecting oil, gas and water. After wetting, rotate the rotating rod to move the oil, gas and water piston of the sampler to the top of the sampler, then connect the sampling connection device, rotate the rotating rod at a uniform speed, and rotate During the process, observe the pressure of the pressure gauge on the top of the sampler. The oil-air-water mixture enters the sampler at a constant speed un...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Viscosityaaaaaaaaaa
Viscosityaaaaaaaaaa
Salinityaaaaaaaaaa
Login to view more

Abstract

The invention discloses a device for oil-gas-water three-phase quantitative and hermetical sampling for the indoor experiment. The device comprises an oil-gas-water quantitative sampling unit, a gas quantitative collecting unit, a crude oil treating unit and a produced water treating and quantitative collecting unit, wherein the gas quantitative collecting unit, the crude oil treating unit and the produced water treating and collecting unit are respectively connected with the oil-gas-water quantitative sampling unit via pipelines. The invention also discloses a method for oil-gas-water three-phase quantitative and hermetical sampling for the indoor experiment, and the method comprises the following specific steps of collecting an oil-gas-water mixture, separating oil, gas and water primarily, dehydrating crude oil containing water and deoiling produced water containing oil. The device has the characteristics of reasonable design, simple structure, running stability, time and labor conservation and environmental friendliness, and the device and the method can be widely applied to indoor experiment quantification, pressurization and hermetical sampling.

Description

1. Technical field [0001] The invention belongs to the technical field of resources and environment, and in particular relates to a device and method for quantitative and airtight sampling of oil, gas and water three-phase for indoor experiments. 2. Background technology [0002] Microbial Enhanced Oil Recovery refers to the technology of using microorganisms (mainly bacteria, archaea) and their metabolites to improve crude oil production and recovery. Compared with other tertiary oil recovery technologies, microbial technology is applicable It has the characteristics of wide range, simple process, good economic benefits, and no pollution, and has good application prospects, so it has attracted more and more attention. The physical simulation experiment of microbial flooding is to activate functional microorganisms under the reservoir conditions of the simulated test block. , Oil displacement effect evaluation and on-site injection process parameter optimization are indispen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N1/10G01N1/22
Inventor 王增林李彩风王刚徐登霆王静郭辽原
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap