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A high eigenvalue foam fracturing fluid forming device for shale oil and gas and its application

A foam fracturing fluid, eigenvalue technology, applied in transportation and packaging, wellbore/well components, dissolution, etc., can solve the problems of insufficient sand carrying capacity, difficulty in forming high eigenvalue foam, poor foam stability, etc.

Active Publication Date: 2020-12-29
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a high eigenvalue foam fracturing fluid forming device for shale oil and gas and its application. The problem of insufficient capacity avoids the problems of gas channeling, gas slug and sand plugging caused by high eigenvalue foam with ultra-low water content

Method used

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  • A high eigenvalue foam fracturing fluid forming device for shale oil and gas and its application
  • A high eigenvalue foam fracturing fluid forming device for shale oil and gas and its application
  • A high eigenvalue foam fracturing fluid forming device for shale oil and gas and its application

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Embodiment Construction

[0077] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

[0078] The structure diagram of the high eigenvalue foam fracturing fluid forming device for shale oil and gas provided by the present invention is as follows: figure 1 Shown, including foam fracturing fluid and proppant mixer, high eigenvalue foam generator, variable diameter mixing oscillator and screw mixing oscillator.

[0079] Wherein, the structure of the foam fracturing fluid and proppant mixer in the forming device of the present invention is as follows: the inlet end of the foam fracturing fluid and proppant mixer is provided with a foam fracturing fluid and proppant injection pipe 1 and a first air inlet pipe 3 , the first air inlet pipe 3 is provided with a first air inlet pipe valve 4, the outlet end is connected to the foam fracturing fluid discharge pipe 40, and two sets of mixing valv...

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Abstract

The invention discloses a high eigenvalue foam fracturing fluid forming device for shale oil and gas and its application. The forming device includes a foam fracturing fluid and proppant mixer, a high-eigenvalue foam generator, a variable-diameter mixing oscillator and a screw mixing oscillator; the inlet end of the foam fracturing fluid and proppant mixer is provided with a foam fracturing liquid and proppant injection pipe and the first air inlet pipe, the outlet end is connected to the foam fracturing fluid discharge pipe; The eigenvalue foam discharge pipe; the extra-high eigenvalue foam discharge pipe is connected to the foam fracturing fluid discharge pipe; the foam fracturing fluid discharge pipe is connected to the variable-diameter mixing oscillator, the screw mixing oscillator and the variable-diameter mixing oscillator in sequence. The foam fracturing fluid forming device of the present invention can produce foam fracturing fluid with ultra-low water content and high characteristic value, which can meet the needs of shale gas and oil development in water-deficient and fragile ecological environment areas such as hills, mountains and deserts.

Description

technical field [0001] The invention relates to a high eigenvalue foam fracturing fluid forming device for shale oil and gas and its application, belonging to the technical field of shale oil and gas exploitation and the field of fracturing stimulation equipment. Background technique [0002] Unconventional oil and gas resources are currently a hot energy source for global development and utilization. Unconventional oil and gas reservoirs represented by shale oil and shale gas have problems such as tight reservoirs, high seepage resistance, and stress sensitivity. The characteristics of its congenital underdevelopment determine that the implementation of fracturing is an important way to realize industrial mining. Hydraulic fracturing technology is widely used all over the world, but conventional hydraulic fracturing has the problems of large water consumption, incomplete reverse drainage, high filtration loss and formation damage. Foam fracturing fluid has been used in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/26E21B43/267B01F11/00B01F15/00
CPCE21B43/26E21B43/267B01F31/00B01F35/00
Inventor 吕其超郑嵘谭星晖
Owner CHINA UNIV OF PETROLEUM (BEIJING)