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Three-dimensional simulation measuring method and device for remaining oil saturation of oil reservoir

A technology of measuring device and measuring method, which is applied in the indoor test field of petroleum thermal recovery process, and achieves the effect of bright colors

Active Publication Date: 2014-10-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the first method, the real-time monitoring technology is mainly suitable for tubular or two-dimensional models under normal temperature and pressure, but not for three-dimensional models under high temperature and pressure.
The second method is suitable for flat models with an area smaller than (1000×1000mm), and is not suitable for larger models, especially 3D models

Method used

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  • Three-dimensional simulation measuring method and device for remaining oil saturation of oil reservoir

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 1. Oil sand sampling: According to actual needs, the three-dimensional simulated oil reservoir after experimental displacement is stratified in the vertical direction (the number of layers is greater than or equal to three layers), and the grid is divided from the uppermost layer to evenly divide the layer into 6× 6 or 7×7 areas, or divide more different areas according to actual needs. For convenience, we call these different areas sampling points. Take out an appropriate amount of oil sand from each sampling point, and pack it with a label with good sealing performance. Seal in the bag. Then mark the bag with the coordinate method. After taking an appropriate amount of oil samples from each sampling point, remove the excess oil sands in this layer, and sample the next layer of oil sands according to the above method. In order to avoid the error caused by the evaporation of the oil sample for a long time, this step is required to be carried out as soon as possible afte...

Embodiment 2

[0055] Embodiment 2: Except that the following content is different from Embodiment 1, other content is the same as Embodiment 1, and will not be repeated:

[0056] (1) Take 30g of the oil sand in step 1, weigh the mass with an electronic balance and record it as m 1 Pack the gauze tightly, put the gauze covered with oil sand into the dry distillation barrel 3, cover it and seal it, and make a corresponding mark. Take another 9 oil samples and do the same operation.

[0057] ③ Dry distilled water: Set the initial temperature to 100℃ by the temperature controller 6. At this time, the heating furnace 2 is heated, the temperature in the constant temperature box 1 rises, and the temperature sensor 4 uploads the measured temperature in the constant temperature box 1 to the temperature controller 6 , But when the temperature reaches 100℃, it stops rising to maintain this temperature. When condensed water appears in the collecting pipe 10, start to record the volume of water, and record ...

Embodiment 3

[0059] Embodiment 3: Except that the following content is different from Embodiment 1, other content is the same as Embodiment 1, and will not be repeated here:

[0060] (1) Take 50g of oil sand in step 1, weigh its mass with an electronic balance and record it as m 1 Pack the gauze tightly, put the gauze covered with oil sand into the dry distillation barrel 3, cover it and seal it, and make a corresponding mark. Take another 9 oil samples and do the same operation.

[0061] ③ Dry distilled water: Set the initial temperature of 150℃ by the temperature controller 6. At this time, the heating furnace 2 is heated, the temperature in the thermostat 1 rises, and the temperature sensor 4 uploads the measured temperature in the thermostat 1 to the thermostat 6 , But when the temperature reaches 150℃, it stops rising to maintain this temperature. When condensed water appears in the collecting pipe 10, start to record the volume of water, and record it every 20 minutes. When three consecu...

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Abstract

The invention discloses a three-dimensional simulation measuring method and device for remaining oil saturation of an oil reservoir. The measuring device for the remaining oil saturation of the three-dimensional simulated oil reservoir comprises a constant-temperature box, a dry distillation bucket and a liquid collecting tube. The dry distillation bucket longitudinally stands in the constant-temperature box, one or more dry distillation buckets are arranged, the bottom of the dry distillation bucket is connected to the liquid collecting tube on the outer side of the constant-temperature box, and heating furnaces are arranged around the dry distillation bucket in the constant-temperature box. A temperature sensor is further arranged inside the constant-temperature box and connected to a temperature controller outside the constant-temperature box through a wiring terminal block on the outer wall of the constant-temperature box. By the adoption of the three-dimensional simulation measuring device and method, after displacement, distribution conditions of the remaining oil of the oil reservoir in a model are simulated for analysis, so that the remaining oil saturation and content at different positions are determined, bases are provided for analyzing an experiment effect, a displacement rule and others, guarantees are provided for making schemes, applied to different blocks, of the technology, and foundations are laid for making schemes, applied to different blocks, of the technology.

Description

Technical field [0001] The invention relates to an indoor test of a petroleum thermal recovery process, in particular to a method and a device for measuring the remaining oil saturation of a three-dimensional simulation oil reservoir. Background technique [0002] After using the laboratory three-dimensional physical simulation device to carry out technical displacement experiments such as water flooding, chemical flooding, steam huff and puff, steam flooding, etc., it is necessary to analyze the distribution of remaining oil in the simulated reservoir after displacement in the model to determine different positions The remaining oil saturation content provides a basis for the analysis of experimental effects and displacement rules, and also provides a foundation for the formulation of plans for the application of this technology in different blocks. In the prior art, there are mainly two types of laboratory measurement (monitoring) of the oil saturation of a simulated oil reserv...

Claims

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Application Information

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IPC IPC(8): E21B49/08
Inventor 白艳丽盖平原王善堂刘廷峰戴宇婷刘冬青蔡文斌赵晓红殷方好王超罗荣章
Owner CHINA PETROLEUM & CHEM CORP
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