Reservoir casing perforation anti-crushing simulation test method and simulation test machine

A simulation test, anti-collapse technology, applied in the testing of machine/structural components, using stable tension/pressure to test the strength of materials, measuring devices, etc. It can improve the efficiency of oil production, overcome the high cost and ensure safety.

Active Publication Date: 2008-02-13
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Abstract
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Problems solved by technology

The simulation test is carried out on the ground to overcome the high cost and long period of the anti-collapse test of the oil layer casing after perforating the oil layer casing by using the simulated well Difficulties that the post-collapse resistance value and deformation law cannot be obtained

Method used

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  • Reservoir casing perforation anti-crushing simulation test method and simulation test machine
  • Reservoir casing perforation anti-crushing simulation test method and simulation test machine

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Embodiment 1

[0037]Embodiment 1: Refer to Fig. 2. Oil layer casing perforation anti-collapse simulation test machine, the pressure cylinder 2 is cylindrical, with a length of 3900mm, an inner diameter of 320mm, and a wall thickness of 160mm. There is a pressure medium injection hole on the wall of the pressure cylinder 2, and a hydraulic pressure sensor 3 is fixed on the pressure medium injection hole. The model number of hydraulic sensor 3 is MOHR267042. The inner diameter of the high-pressure conduit 4 is 3mm, and the high-pressure conduit 4 is connected to the pressure pump 5, and the model of the pressure pump 5 is MOHR30000. The hydraulic pressure sensor 3 is connected with the control box and the computer through wires. The pressure cylinder 2 should be able to withstand a maximum internal pressure of 210MPa.

[0038] Both ends of the pressure cylinder 2 are respectively fixed with plugging flanges 1 . The fixing method can be fixed by bolts. There is a sealing rubber pad betwee...

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Abstract

The perforation anti-collapse simulation test method and the simulation test machine of the oil layer casing are applied to the ground test of the anti-collapse performance of the oil layer casing after perforation in the oil well. The characteristics of the simulation testing machine are: the pressure cylinder is cylindrical, a hydraulic sensor and a high-pressure conduit are fixed on the pressure cylinder wall, and sealing flanges are respectively fixed at both ends of the pressure cylinder. A plug is fixed in the center hole of the plugging flange. The process of the test method: preparation of the oil layer casing for the test; metal plugging of the simulated hole; sealing of both ends of the oil layer casing for the test; installation; pressure test to complete the whole process of the test. The effect is: adopting the invention can complete the anti-collapse test of the casing casing in the oil layer after simulating perforation on the ground. It can obtain the anti-collapse ability of oil layer casing after perforation, optimize the operation parameters of oil and gas fields, and ensure the safety of pipe string structure and production safety of oil well. Suitable for indoor installation, computer control, easy to obtain the anti-collapse ability of oil layer casing after perforation.

Description

technical field [0001] The present invention relates to the technical field of petroleum drilling and well completion, in particular to a ground test method for the performance of an oil layer casing after perforation in an oil well, specifically a method for anti-collapse simulation test of an oil layer casing after perforation, which belongs to an oil layer Casing destructive testing. Background technique [0002] At present, oil and gas wells use oil layer casings in well cementing and completion, and the oil and gas in the formation oil reservoir can pass through the oil layer casings and flow into the casings through perforation of the oil layer casings. However, when explosive perforation is carried out on the casing in the oil layer, the anti-extrusion (collapse) ability of the casing in the oil layer decreases. Insufficient, the casing shrinkage deformation often occurs in the perforation section of the oil layer, that is, collapse failure. In order to accurately u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12G01M19/00G01M99/00
Inventor 林凯王建军上官丰收王建东
Owner BC P INC CHINA NAT PETROLEUM CORP
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