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Device and method for testing lateral extrusion capability of umbilical cable

A capability test and umbilical cable technology, applied in the direction of measuring devices, using stable tension/pressure test material strength, instruments, etc., can solve the problems of the test and evaluation system that has not yet formed a system, imperfections, etc., to achieve perfect testing and The effect of evaluation system, easy disassembly and strong flexibility

Inactive Publication Date: 2021-10-01
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, my country has carried out research work on the design and manufacture of umbilical cables, and has gradually mastered the design and manufacturing capabilities of underwater umbilical cables. However, in terms of testing and evaluation of umbilical cables, a systematic testing and evaluation system has not yet been formed.
In the prior art, the research work on umbilical cable testing mainly focuses on the testing of the bending stiffness, tensile strength, and combined tensile and bending loads of the umbilical cable. For other properties of the umbilical cable, such as lateral extrusion capacity research is not perfect

Method used

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  • Device and method for testing lateral extrusion capability of umbilical cable
  • Device and method for testing lateral extrusion capability of umbilical cable
  • Device and method for testing lateral extrusion capability of umbilical cable

Examples

Experimental program
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no. 1 example

[0044] see Figure 4 Figure 4 It shows the first embodiment of the umbilical lateral extrusion capacity testing method based on the umbilical lateral extrusion capacity testing device of the present invention, including:

[0045] S101, intercept the umbilical cable sample.

[0046] Preferably, the length of the umbilical sample is 200mm-300mm.

[0047] S102. Place the umbilical cable sample on the lower fixture along the horizontal direction.

[0048] It should be noted that when placed, the steel pipe unit in the umbilical sample can be placed close to the contact position between the contact panel and the umbilical sample, or the electrical unit in the umbilical sample can be placed close to the contact position of the umbilical sample to achieve targeted measurement.

[0049] S103, driving the upper clamp to move downward until the upper clamp contacts the umbilical cable sample.

[0050] Specifically, the piston rod of the tensile testing machine can be controlled by...

no. 4 example

[0085] see Figure 7 Figure 7 Shows the fourth embodiment of the umbilical lateral extrusion capacity testing method based on the umbilical lateral extrusion capacity testing device of the present invention, including:

[0086] S401, take four umbilical cable samples with a length of about 200mm-300mm, and draw four straight lines along the axial direction on the outer surface of each umbilical cable sample as marking lines (including two upper marking lines A, B and two lower marking lines) Marking lines C, D, see figure 2 ) to indicate where to load.

[0087] S402. Place the umbilical cable samples horizontally on the "V"-shaped lower clamp, and keep the lower marking line in contact with the lower clamp.

[0088] S403, gradually lower the hydraulic cylinder of the tensile testing machine to keep the umbilical cable sample in contact with the upper fixture.

[0089] S404, start loading, and record the "displacement-force" curve. Wherein, the initial loading speed is l...

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Abstract

The invention discloses a device for testing lateral extrusion capability of an umbilical cable. The device comprises a loading mechanism, a contact panel and a testing mechanism, the loading mechanism comprises a tensile testing machine and a tensile testing controller; the contact panel comprises an upper clamp and a lower clamp, the upper clamp and the lower clamp are oppositely arranged, the upper clamp is arranged above the lower clamp, and the upper clamp can move up and down under the driving of a tensile testing machine and is matched with the lower clamp to apply lateral extrusion force to the umbilical cable sample; the testing mechanism comprises a displacement-force tester and a vernier caliper, the displacement-force tester is used for collecting the lateral extrusion force and the displacement of the umbilical cable sample in real time to generate a displacement-force curve, and the vernier caliper is used for measuring the umbilical cable sample. The invention further discloses amethod for testing the lateral extrusion capability of an umbilical cable based on the device for testing the lateral extrusion capability of the umbilical cable. By adopting the device and the method, the lateral extrusion capacity can be effectively tested, and a test and evaluation system of the umbilical cable is perfected.

Description

technical field [0001] The invention relates to the technical field of umbilical cable manufacturing, in particular to an umbilical cable lateral extrusion capability test device and an umbilical cable lateral extrusion capability test method based on the umbilical cable lateral extrusion capability test device. Background technique [0002] As an important development model of deepwater oil and gas fields, the underwater production system is a new technology for the development of offshore oil and gas resources. The subsea production system returns the produced oil, gas and water multi-phase or single-phase fluids to the nearby underwater, surface or land through subsea wellheads, subsea production facilities partially or fully placed on the seabed, and subsea pipelines Relying on facilities to realize the development of offshore oil and gas fields. [0003] The umbilical cable is a complex cable composed of cables (electric power cables or signal cables), optical cables (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/04G01N3/06G01N3/12
CPCG01N3/04G01N3/06G01N3/062G01N3/12G01N2203/0003G01N2203/0019G01N2203/0048G01N2203/06G01N2203/0605
Inventor 谢鹏李轩
Owner SUN YAT SEN UNIV
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