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Water bulk antishearing strength detecting instrument

A strength detection and shear resistance technology, which is applied in the direction of using a stable shear force to test the strength of materials, etc., can solve the problems of the lack of uniform evaluation standards for the shear strength of water swelling and the inability to control the quality of products, and achieve structural design. novel effect

Active Publication Date: 2006-03-01
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since there is no uniform evaluation standard for the shear strength of water swelling body, and there is no testing and testing equipment, the quality of the product cannot be controlled

Method used

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  • Water bulk antishearing strength detecting instrument
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1, refer to attached figure 1 . The anti-shear strength detector of water swelling body of the present invention is composed of two parts: a pressurizing and force measuring device, and a piston screen type water swelling body testing device. The test device has a cylindrical piston (1), and a cylindrical piston barrel (2) is arranged outside the cylindrical piston (1). The bottom of the cylindrical piston barrel (2) is threadedly connected to the lower gland (3). An annular inner pressure ring (6) and an outer pressure cup (7) are arranged between the cylindrical piston barrel (2) and the lower gland (3). The inner pressure ring (6) and the outer pressure ring (7) adopt mutually matched tapered rings. Its taper is 90 degrees. A wire mesh (8) is fixed between the circular inner pressure cup (6) and the outer pressure ring (7). Wire mesh (8) adopts stainless steel wire to make, and mesh sheet diameter is 40 millimeters, and steel wire diameter is 0.3 mill...

Embodiment 2

[0020] Embodiment 2, refer to attached figure 2 . The difference from Embodiment 1 is that the pressurizing device adopts an electric structure. Electric pressure device structure is that the model of dynamometer (10) is SKN-2 type. It is fixed on the middle part of the fixed beam (14), and the two ends of the fixed beam (14) are fixed on the upper ends of two cylindrical brackets (13); the lifting disc is fixed on the top of the central lifting shaft (11), in order to keep the The lifting plate has been fixed on the middle position of the lifting balance beam (15), and the two ends of the lifting balance beam (15) are sleeved on two cylindrical smooth supports (13), that is, the lifting balance beam (15) ) can slide up and down on the support (13). The motor and the reduction gear are connected to the lifting shaft (11), and are fixed in the electric device box (16). There is a button indicator light on the control panel (17) to control the motor. Under the action of th...

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Abstract

The testing instrument for testing shearing strength of hydro expansion body is formed from two portions of pressurizing and force-measuring device and piston screen type hydro expansion body testing device. Said invention provides the concrete structure of the above-mentioned every portion. The force meter is a standard one, and the pressurizing device can adopt manual pressurizing device, also can adopt electric pressurizing device.

Description

Technical field [0001] The invention relates to an instrument for testing shear strength, in particular to a test instrument for testing the anti-shear strength of chemical product water swelling. Background technique [0002] In the process of oil recovery and production in oilfields, in order to improve the recovery rate of the whole block of old oilfields, some wells need to be treated with technical measures such as profile control, water shutoff, and oil displacement. In the process of processing, a chemical product called water swelling is used. Swelling is an irregular granular chemical product that swells into an elastic gel-like substance after absorbing water. Due to the strong oil displacement and water shutoff effects of water swelling body, it has become an indispensable main raw material in plugging adjustment measures in recent years, and its consumption is increasing year by year. The increase in demand brings more manufacturers to join the production ranks...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/24
Inventor 葛红江刘希君
Owner PETROCHINA CO LTD
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