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Device and work method for simulating channel fracture pump injecting mode and measuring channel rate

A technology for simulating channels and measuring channels, which is applied in earthwork drilling, mining fluids, boreholes/well components, etc. It can solve problems such as errors and lack of measurement, and achieve the effects of easy operation, simple device structure, and practical experimental methods

Active Publication Date: 2016-04-13
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Analyzing the actual fracture shape, it can be approximated as a cubic model. The physical meaning of the actual channel ratio is the ratio of the channel volume not filled with proppant in the proppant-packed layer to the total volume of the packed layer in channel fracturing. Therefore, in two-dimensional Analyzing and calculating the channel rate on the basis of the plane will lead to certain errors
[0004] At present, the research on channel fracturing technology in our country is still in its infancy, and there is a lack of systematic measurement of various important parameters in channel fracturing on the actual formation fracture model and corresponding measuring devices

Method used

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  • Device and work method for simulating channel fracture pump injecting mode and measuring channel rate
  • Device and work method for simulating channel fracture pump injecting mode and measuring channel rate
  • Device and work method for simulating channel fracture pump injecting mode and measuring channel rate

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Experimental program
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Effect test

Embodiment 1

[0058] A device for simulating channel fracturing pumping mode and measuring channel rate, such as figure 1 As shown, it includes injection pump, fracturing fluid pool 1, fracturing fluid pool 2, sand carrying device, sand mixing tank, press, propped fracture simulation room, displacement meter, liquid volume metering device and computer;

[0059] The injection pump is connected to the fracturing fluid tank 1, the sand mixing tank and the propped fracture simulation room, the fracturing fluid tank 2 and the sand carrying device are respectively connected to the sand mixing tank, the press is connected to the propped fracture simulation room, and the propped fracture simulation room is equipped with There is a displacement meter, and the supporting crack simulation chamber is connected with the liquid measuring device, and the displacement meter and the liquid measuring device are respectively connected with the computer.

[0060] The injection pump is used to provide pumping p...

Embodiment 2

[0063] A device for simulating channel fracturing pump injection and measuring channel rate, its structure is as described in Embodiment 1, the difference is that, further, the sand carrying device includes a screw pump, a screw, a sand taking tank and a sand discharge port, such as figure 2 As shown, the screw is connected to the screw pump, the screw is located in the sand tank, the sand discharge port is located at one end of the sand tank, and the sand delivery method of the sand carrying device is the screw rotating sand delivery.

Embodiment 3

[0065] A device for simulating channel fracturing pump injection and measuring channel rate, its structure is as described in Embodiment 1, the difference is that, further, the sand mixing tank includes a proppant inlet, a fracturing fluid inlet, an agitator 1, an agitator 2. Agitator 1 pump, agitator 2 pump, liquid outlet, vent, such as Figure 3-4 As shown, agitator 1 is connected to the agitator 1 pump and agitator 2 is connected to the agitator 2 pump. Agitator 1 and agitator 2 are used to stir the objects in the sand mixing tank.

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Abstract

The invention relates to a device and a work method for simulating a channel fracture pump injecting mode and measuring a channel rate, and belongs to the technical field of oil and gas field development. The device includes an injection pump, a fracture liquid pool 1, a facture liquid pool 2, a sand-carrying device, a sand-mixing pool, a press machine, a support crack simulation chamber, a displacement meter, a liquid volume metering device, and a computer. The injection pump is connected to the fracture liquid pool 1, the sand-mixing pool and the support crack simulation chamber. The fracture liquid pool 2 and the sand-carrying device are connected to the sand-mixing pool. The press machine is connected to the support crack simulation chamber. The displacement meter is arranged on the support crack simulation chamber. The support crack simulation chamber is connected to the liquid volume metering device. The displacement meter and the liquid volume metering device are connected to the computer. The device and the work method for simulating the channel fracture pump injecting mode and measuring the channel rate fill in the blanks in a laboratory simulation process of a channel fracture pump injecting process. The device is simple in structure and is convenient for operation.

Description

technical field [0001] The invention relates to a device and working method for simulating channel fracturing pumping mode and measuring channel rate, and belongs to the technical field of oil and gas field development. Background technique [0002] Under the premise that the development of conventional oil and gas reservoirs in my country has entered the later stage, the strategic position of difficult-to-develop reservoirs such as unconventional oil and gas reservoirs and tight oil and gas reservoirs has been increasing year by year. Hydraulic fracturing technology, as the main technical measure for the development of low-permeability and tight oil and gas reservoirs, has been widely used in my country, and a variety of highly targeted fracturing technologies have been developed for different formation characteristics and reservoir conditions. Channel fracturing technology is based on conventional hydraulic fracturing technology, using multi-cluster perforation, mixing fib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/267E21B49/00
CPCE21B43/267E21B49/00
Inventor 温庆志杨英涛刘欣佳罗明良段晓飞王峰杨柳
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)