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System and method for testing sand suspending ability of fracturing fluid

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

Active Publication Date: 2016-06-15
HUANENG CLEAN ENERGY RES INST +1
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  • Summary
  • 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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  • System and method for testing sand suspending ability of fracturing fluid

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Embodiment Construction

[0045] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.

[0046] Such as figure 1 As shown, a fracturing fluid sand suspension testing 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 and 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, and then the other line is connected with the liquid container 15, the second injection pump 17, and the second flow meter 18 in sequence. , the piston container 19, the second pressure sensor 20 and the branch of the second check valve 21, and the confluence of the two branches is connected with a safety valve 22, an intermediate container 23, a third pressure sensor 24, a seventh valve 25, and a column in sequence. Plug pump 26, third check...

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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 technical field of fracturing, in particular to a system and method for testing the sand suspension capacity of 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 Waterless fracturing technology came into being. CO 2 The waterless fracturing technology is mainly based on liquid CO 2 The anhydrous fracturing fluid formed by mixing with a very small amount of chemical additives replaces the traditional water-based fracturing fluid for reservoir stimulation. While improving the effect of volume fracturing, it can effectively protect the reservoir and save a lot of water resources. It has great advantages both technically and economically. Due to ...

Claims

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Application Information

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Patent Type & Authority Applications(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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