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Sand filling model pipe

A technology of model tube and sand filling, which is applied in the fields of fluid production, measurement, wellbore/well components, etc., can solve the problem of large error in test results, and achieve the effect of good sealing effect.

Pending Publication Date: 2018-02-09
江苏鑫贝诺冶金机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the oil recovery test of the general sand-packed model pipe, the error of the test result is large due to the air tightness of the sand-packed model pipe and the inaccurate sampling of the test.

Method used

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  • Sand filling model pipe

Examples

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Embodiment Construction

[0020] The following examples can enable those skilled in the art to understand the present invention more comprehensively, but the present invention is not limited to the scope of the described examples.

[0021] Such as figure 1 A sand-filled model pipe is shown, the sand-filled model pipe includes: a body 1, a flange cover 2, and a flange 3; the body 1 is a hollow pipe, and the side wall of the body 1 is provided with a pressure test port 4 and a sample Port 5, the two ends of the body 1 are provided with flanges 3; the flange cover 2 is located at both ends of the body 1, and the flange cover 3 and the flange 2 are connected by screws; the flange cover 2 is provided with a protrusion 21, There is a groove 31 on the flange, the protrusion 21 on the flange cover 2 is embedded in the groove 31 of the flange 3, and the protrusion 21 on the flange cover 2 and the groove 31 on the flange 3 are arranged There is a washer 6 .

[0022] A filter plate 7 and a filter screen 8 are a...

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Abstract

The invention relates to a sand filling model pipe, which comprises a body, flange covers and flanges, wherein the body is a hollow pipe; a pressure test opening and a sample opening are formed in theside wall of the body; and the flanges are arranged at two ends of the body. The sand filling model pipe is characterized in that a bulge is arranged on each flange cover; a groove is formed in eachflange; the bulge arranged on each flange cover is embedded into the groove of the corresponding flange; and a gasket is arranged between the bulge arranged on the flange cover and the groove formed in the corresponding flange. The roughness of the hollow pipe of the body of the sand filling model pipe is greater than Ra12, so that the crossflow phenomenon between sand grains and the inner wall inthe experiment process can be prevented. The end part of the sand filling model pipe achieves a good sealing effect through the mutual matching of the bulge arranged in the flange cover and the groove formed in the flange and through the use of the gasket.

Description

technical field [0001] The invention relates to the field of oil and gas exploration and development, in particular to a sand filling model pipe. Background technique [0002] In oil recovery experiments in the petroleum industry, sand-packed model tubes are usually used when conducting indoor physical experiments of microbial oil displacement. During the experiment, it is necessary to detect and analyze the produced fluid along the process and at the outlet, and to monitor the pressure. When conducting the distribution of residual oil saturation along the model tube and the adsorption law of quartz sand, it is required to accurately obtain the oil contained in the model tube along the process. Quartz sand samples of formation water and residual oil. [0003] During the recovery test of the general sand-packed model pipe in the oil industry, the error of the test result is relatively large due to the air tightness of the sand-packed model pipe and the inaccurate sampling of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/22E21B47/00
CPCE21B43/16E21B47/00
Inventor 韩金忠
Owner 江苏鑫贝诺冶金机械有限公司
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