Sandstone oil and gas well casing string simulation test device and evaluation method thereof

A simulation test and casing string technology, applied in the direction of measuring device, testing material strength by applying stable bending force, testing material strength by applying stable tension/compression, etc. Uniform loading and other issues

Active Publication Date: 2019-08-02
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the casing string physical simulation test device can realize the combined loading of uniform extrusion load, temperature load and bending load, but it cannot realize the non-uniform loading of casing string extrusion load

Method used

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  • Sandstone oil and gas well casing string simulation test device and evaluation method thereof
  • Sandstone oil and gas well casing string simulation test device and evaluation method thereof
  • Sandstone oil and gas well casing string simulation test device and evaluation method thereof

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Embodiment Construction

[0038] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", "end", "side" etc. is based on the Orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicit...

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Abstract

The invention discloses a sandstone oil and gas well casing string simulation test device and an evaluation method thereof, wherein a test casing is fixed on a test frame, the sandstone oil and gas well casing string simulation test device is installed, loads are applied through an axial hydraulic cylinder, a bent hydraulic cylinder, an internal pressure oil source, a temperature tank and a radialhydraulic cylinder, a data acquisition and analysis system collects the conditions of temperature, pressure, curvature and deformation of monitoring points of the test casing string through four strain gauges, and deformation of the test casing is evaluated according to the acquired data. The sandstone oil and gas well casing string simulation test device and the evaluation method thereof provided by the invention have the bending load, the internal pressure load, the temperature load and the non-uniform external extrusion combined loading condition casing string deformation simulation, can be well close to the field working condition, can be used to truly simulate the service environment of the complex fracturing casing string of the sandstone oil well, and is convenient for selection ofcasing strings for field construction.

Description

technical field [0001] The invention belongs to the technical field of drilling, and in particular relates to a sandstone oil and gas well casing string simulation test device and an evaluation method thereof. Background technique [0002] The sandstone is dense, the formation pressure coefficient is high, and the horizontal principal stress difference is relatively large. The fracturing technology of sandstone oil and gas horizontal wells adopts casing fracturing. The complex fracturing technology of casing leads to complex and changeable service load environment of casing string, which has remarkable characteristics. These are: high parameters of fracturing process, non-uniformity of extrusion load, shear characteristics, bending characteristics and sharp changes in temperature. Through a large number of domestic and foreign literature and field investigations, no reports have been reported on the physical evaluation device for composite loading of casing strings under the...

Claims

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Application Information

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IPC IPC(8): G01N3/12G01N3/18G01N3/20
CPCG01N3/12G01N3/18G01N3/20G01N2203/0003G01N2203/0019G01N2203/0023G01N2203/0048G01N2203/0075G01N2203/0226G01N2203/0676G01N2203/0682
Inventor 杨尚谕韩礼红王建军王航路彩虹
Owner BC P INC CHINA NAT PETROLEUM CORP
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