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Dynamic crack self-support fracturing technology study device and flow guiding testing method thereof

A process research, self-supporting technology, applied in the direction of production fluid, earthwork drilling, wellbore/well components, etc.

Inactive Publication Date: 2020-02-18
DAGANG OIL FIELD GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] However, there is currently no technology that can solve the above technical problems

Method used

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  • Dynamic crack self-support fracturing technology study device and flow guiding testing method thereof
  • Dynamic crack self-support fracturing technology study device and flow guiding testing method thereof
  • Dynamic crack self-support fracturing technology study device and flow guiding testing method thereof

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Embodiment Construction

[0140] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0141] For the present invention, it needs to be explained firstly that, in self-supporting fracturing construction, to make the formed self-supporting fractures achieve higher flow conductivity, the key is to allow the self-supporting fracturing fluid to form a stable and effective support, while the self-supporting fracturing fluid forms a stable and effective support. The flow pattern distribution of the propped fracturing fluid system determines the distribution characteristics of the self-supporting solid phase after phase transition, so studying the flow distribution of the self-fracturing fluid system under different liquid formulations and different construction parameters is crucial for optimizing self-supporting fracturing. It is ne...

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Abstract

The invention discloses a dynamic crack self-support fracturing technology study device. A visual flowing simulating unit (100), a visual clamping temperature control unit (200), a visual liquid injection pipeline shaft and fracturing blender truck simulating unit (300), a liquid supply unit (400), a pressure and flow control unit (500), a self-support fracturing liquid and channel fracturing liquid separator (600) and an image collecting unit (700) are included. In addition, on the basis of the dynamic crack self-support fracturing technology study device, the invention further discloses a flow guiding testing method of the dynamic crack self-support fracturing technology study device. By means of the dynamic crack self-support fracturing technology study device and the flow guiding testing method, flowing and phase change phenomena of self-support fracturing liquid systems with different liquid properties and different construction parameters in a simulating crack are visually observed, and accordingly the influence rule is studied.

Description

technical field [0001] The invention relates to the field of petroleum exploitation, in particular to the technical field of oil and gas production stimulation measures, in particular to a dynamic fracture self-supporting fracturing technology research device and a diversion measurement method thereof. Background technique [0002] At present, in the field of oil exploitation, faced with the technical problems existing in the current volume fracturing technology, the movement distance of quartz sand carried by slick water is limited, the particle size of sand added is extremely small, and continuous operation is usually impossible. At present, a new hydraulic fracturing process has been developed: liquid self-supporting fracturing technology. [0003] For liquid self-supporting fracturing technology, the technical principle is: use immiscible self-supporting fracturing fluid (no solid phase at room temperature, liquid with good flow ability, unique thermal sensitivity, heate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/002E21B43/267E21B49/00
CPCE21B43/267E21B49/00
Inventor 裴宇昕张胜传廖兴松张楠林赵立强易博李海甫杨锋马龙高弘孙向东赵子豪
Owner DAGANG OIL FIELD GRP
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