A system and method for testing the suspension capacity of fracturing fluid

A technology of sand suspension capacity and testing system, applied in the field of fracturing

Active Publication Date: 2017-12-08
HUANENG CLEAN ENERGY RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, actual market research has found that there are few existing construction site operations or laboratory studies aimed at testing CO 2 There are no mature products on the market for the device with the ability to suspend fracturing fluid

Method used

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  • A system and method for testing the suspension capacity of fracturing fluid

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Embodiment Construction

[0045] The following describes the implementation of the present invention in detail with reference to the drawings and embodiments.

[0046] Such as figure 1 As shown, a fracturing fluid suspension capacity test system includes a first gas cylinder 1 and a second gas cylinder 2, both of which are connected to the inlet of a filter 5, and the outlet of the filter 5 is sequentially connected to a condenser 6, a storage tank 7. The first injection pump 11, the first pressure sensor 12, the first flow meter 13 and the first check valve 14, then merge into another one and connect with the liquid container 15, the second injection pump 17, and the second flow meter 18 in sequence. , The branch of the piston container 19, the second pressure sensor 20 and the second check valve 21, the safety valve 22, the intermediate container 23, the third pressure sensor 24, the seventh valve 25 and the column are connected in sequence at the junction of the two branches The plug pump 26, the thir...

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Abstract

A system for testing the sand suspending ability of fracturing fluid comprises two branches. The first branch comprises a first gas bottle and a second gas bottle which are connected with the inlet of a filter. The outlet of the filter is sequentially connected with a condenser, a storage tank, a first injection pump, a first pressure sensor, a first flowmeter and a first check valve. The second branch comprises a liquid container, a second injection pump, a second flowmeter, a piston container, a second pressure sensor and a second check valve which are sequentially connected. The two branches converges and then are sequentially connected with a safety valve, a middle container, a third pressure sensor, a seventh valve, a plunger pump, a third check valve, an eighth valve and a circulation loop. The circulation loop comprises a screw pump, a fourth pressure sensor, a temperature sensor, an observation container, a fifth pressure sensor, a spiral pipe and a ninth valve which are sequentially connected. By the system, the dynamic sand suspending ability and static sand suspending ability of various types of fracturing fluid can be tested, and the viscosity of various fracturing fluid can be measured through a falling-ball method.

Description

Technical field [0001] The invention belongs to the field of fracturing technology, and particularly relates to a system and method for testing the sand suspension capacity of a fracturing fluid. Background technique [0002] With the large-scale development of tight and low-permeability unconventional oil and gas reservoirs, in view of the environmental protection problems of conventional water-based fracturing fluids, water-sensitive formations and the constraints of water shortage in mining areas, CO 2 Anhydrous fracturing technology came into being. CO 2 Anhydrous fracturing technology is mainly based on liquid CO 2 An anhydrous fracturing fluid mixed with a very small amount of chemical additives replaces traditional water-based fracturing fluids for reservoir reconstruction. While improving the effect of volume fracturing, it can effectively protect the reservoir and save a lot of water resources. Both technically and economically have great advantages. Due to supercritica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/26
CPCG01N33/26
Inventor 张健郜时旺张国祥荆铁亚王金意
Owner HUANENG CLEAN ENERGY RES INST
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