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Foam viscosity measuring device and method

A technology of foam viscosity and measuring device, which is applied in the field of petroleum engineering and technology, can solve the problems of imperfect foam flooding mechanism and lack of theoretical basis for on-site program preparation, etc., achieve high control accuracy and automation, ensure stability, and improve control accuracy Effect

Active Publication Date: 2020-01-07
PETROCHINA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no relevant equipment for measuring foam kinematic viscosity under simulated reservoir pore medium conditions, and it is impossible to measure the kinematic viscosity parameters of foam system under simulated reservoir and pore medium conditions, resulting in imperfect foam flooding mechanism and lack of theoretical basis for on-site planning

Method used

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  • Foam viscosity measuring device and method

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Embodiment 1

[0046] Such as figure 1 As shown, the embodiment of the foam viscosity measuring device of the present invention is a device for simulating the reservoir condition to measure the viscosity of foam in the porous medium, including a pore medium model system for simulating the oil reservoir, injecting into the pore medium model system The liquid, gas or foam injection system and the production fluid metering system for measuring the production fluid in the porous medium model part.

[0047] The porous medium model system in this embodiment is used for simulating the reservoir porous medium, the inlet of the porous medium model system is connected with the first injection system, the second injection system and / or the third injection system, the outlet of the porous medium model system is connected with the production connected to the liquid metering system. The porous medium model can be capillary one E1 or / and capillary two E2, and the inlet of capillary one E1 is connected to ...

Embodiment 2

[0070] Foam viscosity measuring method of the present invention, the foam viscosity measuring device that uses is with embodiment 1, and measuring foam enters different porous medium models simultaneously and comprises the following steps:

[0071] In the method for measuring foam viscosity of the present invention, measuring foam and entering different porous media models at the same time comprises the following steps:

[0072] Step 1: Open the incubator M, and the computer N sets the temperature of the incubator M; fill the solution into the liquid piston container one B1 and / or the liquid piston container two B2; set the pressure value of the back pressure valve K, high pressure The gas in the gas cylinder G3 is pressurized to the pressure value of the back pressure valve K by the gas booster pump G2, and the high-pressure gas pressurized to the pressure value of the back pressure valve K by the gas booster pump G2 enters the gas through the pipeline and valve six T6 In the...

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Abstract

The invention relates to a foam viscosity measuring device and method. The device comprises a pore medium model system for simulating an oil reservoir, an injection system for injecting liquid, gas orfoam into the pore medium model system, and a produced liquid metering system for metering produced liquid of the pore medium model system. The device is characterized in that the injection system comprises a first injection system for injecting liquid into the pore medium model system, a second injection system for injecting gas into the pore medium model system, and a third injection system forinjecting certain amount of liquid into the pore medium model system; the third injection system comprises a visible piston container used for storing a liquid medium, a constant-pressure constant-speed pump used for providing conveying power for the corresponding liquid medium and a camera used for shooting the visible piston container; and the pore medium model system comprises a first capillary tube and a second capillary tube. According to the foam viscosity measuring device and method, the viscosity of foam in the pore medium can be measured by simulating oil reservoir conditions.

Description

technical field [0001] The invention belongs to the field of petroleum engineering and technology, and relates to a physical simulation device and method for chemical flooding research in oil and gas field development technology, in particular to a foam viscosity measuring device and method suitable for physical simulation experiments of tertiary oil recovery. Background technique [0002] The main oil reservoirs in oilfields at home and abroad are mostly sandstone reservoirs with high permeability and strong heterogeneity. After water flooding, polymer flooding and subsequent water flooding for a long time, the pore radius and roar radius of the reservoir increase, and dominant seepage channels are formed in the reservoir, resulting in rapid rise of water cut and serious water channeling. Especially after 60 years of long-term development in Daqing Oilfield, the heterogeneity of the reservoir is very serious, and a large number of dominant seepage channels have been formed....

Claims

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Application Information

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IPC IPC(8): G01N11/04
CPCG01N11/04Y02A10/40
Inventor 韩培慧曹瑞波陈国刘宏生孙刚刘国超陈文林
Owner PETROCHINA CO LTD