High-curvature well section pipe string passing capacity simulation experimental device and its experimental method

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 Ingenious design, easy to transport, and conducive to popularization and application
CN106769442BActive Publication Date: 2019-06-11NORTHEAST GASOLINEEUM UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHEAST GASOLINEEUM UNIV
Publication Date
2019-06-11

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Abstract

The present invention relates to a high-curvature well section pipe string passage capacity simulation experiment device, wherein the high curvature well section pipe string passage capacity simulation experiment device is provided with a first guide rail on the main base, and one end of the straight pipe section of the outer pipe is connected to the baffle group Sliding baffle, the pipe string test piece extends from the elbow section of the outer pipe, the other end of the pipe string test piece is connected to the loading device, and multiple sets of fastening devices detachably clamp the outer pipe at intervals, and the multiple sets of fastening devices all slide Connected to the first guide rail; the baffle set includes a baffle base, a sliding baffle, a second guide rail, tension and pressure sensors, and a fixed baffle. The baffle base is provided with a second guide rail, and the sliding baffle is connected to The second guide rail is slidably connected, the baffle base is slidably connected to the first guide rail, the fixed baffle is slidably connected to the first guide rail, and the two ends of the tension and pressure sensor are respectively connected to the sliding baffle and the fixed baffle through variable buckles. The invention can realize the experimental purpose of simulating the passage capacity of various high-curvature well sections and pipe strings with various borehole diameters.
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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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