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Method and apparatus for producing thick oil based on sound, light and electricity combination function

A combined action, heavy oil technology, applied in the fields of fluid production, earthwork drilling, wellbore/well components, etc., can solve the problems of cumbersome operation process, high maintenance cost, complicated process, etc. The effect of superior oil quality and simple process flow

Inactive Publication Date: 2007-06-13
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many mining methods for heavy oil today, among which the most widely used and mature technology is the steam stimulation method (reservoirs that are considered unrecoverable by this method cannot be recovered by other methods), but this method also has its limitations, mainly in the High consumption, low heat utilization rate, easy to be affected by rock formation heterogeneity and steam characteristics, gas channeling, overburden and other effects will affect the ultimate recovery, and there is a waste water treatment problem; in addition, some minerals may Reacts with water to form pore-clogging substances, which affects the seepage effect of heavy oil. For the problem of containing harmful substances that easily react with water, although the method of injecting water repellent in advance has been proposed, these methods have complex processes and cost. Disadvantages of high and low recovery
The heavy oil production equipment based on traditional production technology, such as steam injection equipment, has the advantages of large area, many supporting equipment, difficult selection of operating parameters, cumbersome operation process, complicated management, low recovery rate, high maintenance cost, and poor economic benefits, etc. shortcoming

Method used

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  • Method and apparatus for producing thick oil based on sound, light and electricity combination function
  • Method and apparatus for producing thick oil based on sound, light and electricity combination function

Examples

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Effect test

Embodiment 1

[0028] A method for extracting heavy oil based on the combination of sound, light and electricity, the steps are as follows:

[0029] 1). Frequency selection: Collect heavy oil samples from oil wells and divide them evenly into 10 parts. Divide the frequency range of ultrasonic waves from 20KHz to 400KHz into corresponding 10 frequency bands. Then, under the same sound intensity and time, use each frequency band to correspond to one part. Thick oil is used for action, and then the physical properties of the oil sample after action are analyzed, such as viscosity and thermal effect, and its composition change is analyzed by gas chromatography, and its comprehensive value is finally evaluated. The frequency band with obvious thermal effect and viscosity reduction is the main frequency range. Determine the range of its main frequency;

[0030]2). Installation device: as shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the device is divided into two parts: the downhole part and...

Embodiment 2

[0037] A method for extracting heavy oil based on the combination of sound, light and electricity, the steps are as follows:

[0038] 1). Frequency selection: collect heavy oil samples from oil wells, divide them evenly into 20 parts, and divide the frequency of ultrasonic waves from 20KHz to 400KHz into corresponding 20 frequency bands, and then, under the same sound intensity and time, use each frequency band to correspond to one part Thick oil is used for action, and then the physical properties of the oil sample after action are analyzed, such as viscosity and thermal effect, and its composition change is analyzed by gas chromatography, and its comprehensive value is finally evaluated. The frequency band with obvious thermal effect and viscosity reduction is the main frequency range. Determine the range of its main frequency;

[0039] Preliminary test, using ultrasound in a certain frequency range from 20KHz to 400KHz to act on a certain heavy oil sample, the viscosity red...

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Abstract

A method for exploiting thick oil based on sound, light and electricity includes the following steps: 1. frequency selection: collecting thick oil sample to determine its master frequency sphere, 2. mounting the device: the underground part includes a hook of a fixed device, a supersonic instrument, a light source in 1-500 mn wave length, an electric heater, an oil quality monitor, the underground part is connected with the ground part by cable and information test feedback line, 3. utilizing the master frequency on the oil layer to regulate supersonic band when monitoring oil quality of well casing and open the light source of 1-500 mn and the heater and start the pumping 4. using 45-55 KHz low frequency to continuously work on the oil layer 5. regulating frequencies and repeating step 3 and 4.

Description

technical field [0001] The present invention relates to a method and device for mining heavy oil by reducing viscosity and breaking bonds. Specifically, it is a method for mining heavy oil that uses the combined action of sound, light and electricity to reduce the viscosity of heavy oil and break molecular chains. and its devices. Background technique [0002] Due to the characteristics of high viscosity and long molecular chain, heavy oil cannot be extracted by traditional oil extraction methods. There are many mining methods for heavy oil today, among which the most widely used and mature technology is the steam stimulation method (reservoirs that are considered unrecoverable by this method cannot be recovered by other methods), but this method also has its limitations, mainly in the ability to High consumption, low heat utilization rate, easy to be affected by rock heterogeneity and steam characteristics, gas channeling, overburden and other effects will affect the ultim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/16
Inventor 陈振林
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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