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Visual dynamic fracture self-supporting fracturing technology research experimental device

A technology for experimental device and process research, which is applied in the field of visual dynamic fracture self-supporting fracturing process research experimental device, can solve the problems of inability to continuously operate, small particle size of sand, and limited migration distance of carrying quartz sand, and achieves an optimized formula. The effect is related to construction parameters and process, simple processing and convenient assembly.

Inactive Publication Date: 2020-02-14
DAGANG OIL FIELD GRP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Facing 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 the continuous operation is usually impossible

Method used

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  • Visual dynamic fracture self-supporting fracturing technology research experimental device
  • Visual dynamic fracture self-supporting fracturing technology research experimental device
  • Visual dynamic fracture self-supporting fracturing technology research experimental device

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Experimental program
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specific Embodiment

[0105] The flow process of the self-supporting fracturing fluid system in the whole visualized self-supporting fracturing process research device is as follows. 5m 3 / h channel fracturing fluid injection displacement 10m 3 / h, the temperature of the oil bath is 150°C, and the constant pressure of the electric hydraulic pump is set to 40MPa. At this point, the experiment starts. The flow process of the self-supporting fracturing fluid system in the whole-process visualized self-supporting fracturing process research device is as follows. First, the self-supporting fracturing fluid and channel fracturing fluid are displaced by different frequency conversion screw pumps and simulated Visualized ground gathering and transportation pipelines, simulated surface gathering and transportation visualized elbows, simulated sand mixer shear pumps, simulated wellhead visualized elbows, and simulated casing (tubing) pipelines. The distribution patterns recorded by high-speed cameras at thi...

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Abstract

The invention discloses a visual dynamic fracture self-supporting fracturing technology research experimental device. The visual dynamic fracture self-supporting fracturing technology research experimental device includes the following units of (1) a visual variable fracture width simulation plate and hydraulic control and measurement unit, (2) a visual clamping temperature control unit, (3) a visual simulation fluid injection pipeline, wellbore and fracturing blender truck simulation unit, (4) a fluid supply unit, (5) a pressure control and flow control unit, (6) a self-supporting fracturingfluid and channel fracturing fluid separator and (7) an image acquisition unit; and the units are combined to form a flow space which has a fluid pressure resistance of 10 MPa and can simulate a flowdistribution law of a self-supporting fracturing fluid system in a perforation belt and a parallel fracture space, and meanwhile, the flow space is further provided with a heating and temperature control system and can provide simulated formation heating conditions, so that self-supporting fracturing fluid with different distribution produces phase transition to form a self-supporting solid phase.

Description

technical field [0001] The invention belongs to the field of petroleum exploitation, in particular to the technical field of oil and gas production stimulation measures, and in particular to an experimental device for the research of visual dynamic fracture self-supporting fracturing technology. Background technique [0002] Facing the technical problems existing in the current volume fracturing technology, the slick water carries the quartz sand with a limited migration distance, the particle size of the added sand is extremely small, and the continuous operation is usually impossible. At present, a brand-new hydraulic fracturing process measure-liquid self-supporting fracturing technology has been developed. The technical principle is: use immiscible self-supporting fracturing fluid (no solid phase at room temperature, liquid with good flow ability, unique heat sensitivity, self-supporting solid phase will be generated when heated to a certain temperature) and Channel fra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/002E21B43/267
CPCE21B43/267
Inventor 裴宇昕周立宏廖兴松周华兴周静曾清斌何光晶宗秀红姚习志杨欢段丽娜任建芳张谦
Owner DAGANG OIL FIELD GRP
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