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Oil well small-section flow detection tool

A flow detection and oil well technology, applied in measurement, wellbore/well components, earth-moving drilling, etc., can solve the problems of large measurement error and influence, and achieve the effect of easy installation, accurate measurement and convenient operation

Active Publication Date: 2018-07-06
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the domestic oil well metering technology cannot realize continuous metering and real-time uploading of data. At the same time, the metering error is relatively large, which has a serious impact on the improvement of oil well recovery.

Method used

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  • Oil well small-section flow detection tool
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  • Oil well small-section flow detection tool

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings, and the protection scope of the present invention is not limited to the following description.

[0021] Such as figure 1 ,Such as figure 2 As shown, the oil well sub-section flow detection tool includes a central pipe 1, a lower baffle 2, a flow divider 4, a collar 6, a nut 7, a screw motor 8, a central pipe joint 9, an adapter 10 and a traction robot 11; The bottom end of the central tube 1 is connected with a lower baffle 2, a lower rubber sleeve 3 is provided between the lower baffle 2 and the flow divider 4, and an upper rubber sleeve 5 is provided between the flow divider 4 and the collar 6. The top of the collar 6 is provided with a nut 7, the nut 7 is connected with the lead screw motor 8, and a flat key 12 is arranged between the nut 7 and the center pipe 9 for circumferential positioning, and the lead screw motor 8 is connected to the lower end of the center p...

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Abstract

The invention discloses an oil well small-section flow detection tool which comprises a center pipe (1), a lower baffle (2), a flow distributor (4), a lantern ring (6), a nut (7), a lead screw motor (8), a center pipe connector (9), an adapter (10) and a traction robot (11). The bottom end of the center pipe (1) is connected with the lower baffle (2), and the flow distributor (4) is mounted between the lower baffle (2) and the lantern ring (6) in a sleeved mode. The nut (7) is arranged at the top end of the lantern ring (6) and is connected with the lead screw motor (8), and the lead screw motor (8) is connected to the lower end of the center pipe connector (9). The adapter (10) is connected between the center pipe connector (9) and the traction robot (11), and the top end of the center pipe (1) is connected with an oval flowmeter (13). The oil well small-section flow detection tool is simple in structure, easy to mount, convenient to operate, low in cost and capable of continuously detecting the oil well oil layer small section flow under the situation that production is not influenced, and the detection result of the tool can be quickly transmitted to a ground platform.

Description

technical field [0001] The invention belongs to the field of oil well flow detection, and in particular relates to a small-section flow detection device for an oil well, which relates to the flow detection of an oil layer in an oil well. Background technique [0002] The existing metering methods for oil wells in China mainly include glass tube oil measuring orifice gas measuring, tipping bucket oil measuring orifice gas measuring, two-phase separation density method and three-phase separation metering, etc. Most of these existing oil well metering methods are direct measurement of the wellbore flow of the oil well, and the production of the oil layer of the oil well is obtained through correlation calculation, and the oil well reservoir is estimated, and the error of the obtained data is relatively large. [0003] In the process of domestic oil well exploitation, in order to monitor the working conditions of different intervals in the wellbore of the oil well, so as to form...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/00E21B47/135E21B23/00E21B33/128
CPCE21B23/00E21B33/128E21B47/00E21B23/001E21B47/135
Inventor 黎伟夏杨陈曦李佩胡亚军张帅黄涛屈锐吴昌
Owner SOUTHWEST PETROLEUM UNIV