Drilling type three-dimensional ground stress monitoring sensing device based on optical fiber sensing technology
An optical fiber sensing technology and a sensing device technology, which are applied in the field of borehole-type three-dimensional geostress monitoring and sensing devices, can solve problems such as the stability of the instrument work, the limitation of the use of electrical monitoring instruments, and the like, and achieve the effect of huge economic benefits.
Inactive Publication Date: 2015-05-06
JILIN UNIV
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Problems solved by technology
[0003] At present, relatively mature in-situ stress monitoring technologies mainly include volumetric monitoring instruments, capacitive component monitoring instruments and piezomagnetic component monitoring instruments. Problem, the use of traditional electrical monitoring instruments is limited
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[0017] In order to make the objects and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0018] Such as Figure 1-3 As shown, the embodiment of the present invention provides a drilling-type three-dimensional geostress monitoring sensor device based on optical fiber sensing technology, including a high-pressure rubber tube 1, a high-pressure rubber connecting tube 2, a first three-component probe 9, a second three-component probe The component probe 10, the third three-component probe 11 and the sensing device terminal 8, the first three-component probe 9, the second three-component probe 10, and the third three-component probe 11 are connected through a double-threaded connector 12, and are connected by a limit Block 13 defines th...
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Abstract
The invention discloses a drilling type three-dimensional ground stress monitoring sensing device based on an optical fiber sensing technology. The drilling type three-dimensional ground stress monitoring sensing device comprises a high-pressure rubber pipe, a high-pressure rubber connecting pipe, a first three-component probe, a second three-component probe, a third three-component probe and a sending device end, wherein the first three-component probe, the second three-component probe and the third three-component probe are connected through double-thread connectors, the first three-component probe is an axial planar three-component probe, the second three-component probe and the third three-component probe are tangential planar three-component probes having 90-degree angle difference in direction, and the first three-component probe, the second three-component probe and the third three-component probe are each composed of a limiting block, an aluminum alloy base, three single-component sensing chip, a single-component sensing chip support and a sending device protection sleeve. The drilling type three-dimensional ground stress monitoring sensing device can directly at the service of oil and gas resource prospection, earthquake generating fault zone ground stress monitoring and large side slope rock body stress change monitoring, provides energy guarantee and safety for the life of people and has huge social and economic benefits.
Description
technical field [0001] The invention relates to the field of sensors, in particular to a drilling-type three-dimensional geostress monitoring and sensing device based on optical fiber sensing technology. Background technique [0002] In-situ stress state data is an indispensable basic data in the fields of oil and gas resource exploration, geological disaster research and prevention, urban construction, earthquake prediction, and slope rock mass stability research. Its accuracy directly affects the quality and even success of the project. Therefore, in-situ stress measurement and monitoring has become an indispensable work in human engineering activities. At present, with the development of large-scale projects such as coal mines and other mineral mining, water diversion, electricity diversion, reservoir construction, geological disaster prevention, oil and gas field exploration, etc., the demand for continuous monitoring of rock mass in-situ stress has increased sharply. T...
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IPC IPC(8): G01L1/24
Inventor 仲志成林君赵斌王龙南徐佩华李哲
Owner JILIN UNIV