Simulated experiment device for passability of high-curvature well section strings and experiment method thereof

A technology for simulating experimental devices and strings, applied to measuring devices, applying stable tension/pressure to test the strength of materials, instruments, etc., can solve problems such as the inability to simulate the ability of strings to be lowered and passed through high-curvature well sections, and achieve structural The effect of ingenious design, low development cost and flexible adjustment of accessories

Active Publication Date: 2017-05-31
NORTHEAST GASOLINEEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] An object of the present invention is to provide a high-curvature well section pipe string passing capacity simulation experiment device, which is used to solve the problem that existing experimental devices cannot simulate the high-curvature well section pipe string passing through Another object of the present invention is to provide an experimental method for this high-curvature well section pipe string passing capacity simulation experimental device

Method used

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  • Simulated experiment device for passability of high-curvature well section strings and experiment method thereof
  • Simulated experiment device for passability of high-curvature well section strings and experiment method thereof
  • Simulated experiment device for passability of high-curvature well section strings and experiment method thereof

Examples

Experimental program
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Embodiment 1

[0045] to combine figure 1 , figure 2 As shown, this high-curvature well section pipe string passing capacity simulation experiment device includes a main base 1, multiple sets of fastening devices 3, an outer pipe 4, a baffle set 7, a loading device 5, a pipe string test piece 6, and a main base 1 The first guide rail 2 is arranged on the top, and the outer pipe 4 is connected into one body by the straight pipe section 41 and the bent pipe section 42 through the joint 43. The straight pipe section 41, the bent pipe section 42, and the joint 43 of the outer pipe 4 are all made of transparent organic glass. , it is convenient to observe the state of the string test piece 6. One end of the straight pipe section 41 of the outer pipe 4 is connected to the sliding baffle plate 72 of the baffle plate group 7, the pipe string test piece 6 extends from one end of the bent pipe section 42 of the outer pipe 4, and the other end of the pipe string test piece 6 is connected to the loadi...

Embodiment 2

[0060] In this embodiment, a spacer 79 is provided between the pipe clip and the joint 43, and the spacer 79 is also separate, and each half body has an arc-shaped convex rib, and the pipe clip base 36 and the fixing block 37 have arc-shaped grooves respectively. , one half body is fastened with the pipe clip base 36, and the other half body is fastened with the fixing block 37, and other structures are the same as in Embodiment 1.

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Abstract

The invention relates to a simulated experiment device for the passability of high-curvature well section strings. First guide rails are arranged on a main base of the simulated experiment device for the passability of high-curvature well section strings, one end of a straight pipe section of an external pipe is connected to a sliding baffle of a baffle assembly, a string specimen is inserted into a curved pipe section of the external pipe, the other end of the string specimen is connected to a loader, a plurality of groups of fasteners detachably fasten the external pipe at intervals, and the plurality of groups of fasteners are all slidably connected to the first guide rails; the baffle assembly comprises a baffle base, the sliding baffle, second guide rails, a tension-compression sensor, and a fixed baffle, the second guide rails are arranged on the baffle base, the sliding baffle is slidably connected to the second guide rails through slide rails on the bottom, the baffle base is slidably connected to the first guide rails, the fixed baffle is slidably connected to the first guide rails, and both ends of the tension-compression sensor are respectively connected to the sliding baffle and the fixed baffle through adapters. The invention can implement the experimental objective of simulating the passabilities of strings in various high-curvature well sections and various borehole diameters thereof.

Description

technical field [0001] The invention relates to an experimental device for studying high-curvature well section pipe strings in the technical field of oil and gas well drilling, in particular to a high-curvature well section pipe string passage capacity simulation experiment device and an experimental method thereof. Background technique [0002] Thin oil layers, heavy oil layers, low-permeability oil and gas layers, and fractured oil and gas layers have become the main targets of my country's oil and gas resource exploitation, which put forward higher requirements and challenges for horizontal well technology, and continuously derived a variety of different types of horizontal wells , such as medium-short radius horizontal wells, medium-short curvature radius horizontal wells and ultra-short radius horizontal wells, etc. Such high-curvature well sections put forward higher requirements for the runability of pipe strings. When the pipe string is run into the curved wellbore, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08
CPCG01N3/08G01N2203/0017
Inventor 张强刘巨保刘昱良蒋豹李治淼徐世博许杰韩耀图王晓鹏
Owner NORTHEAST GASOLINEEUM UNIV
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