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Underground storage type flow and water content monitor

A monitoring instrument and flow rate technology, which is applied in the direction of measurement, wellbore/well components, earthwork drilling and production, etc., and can solve the problems of large errors

Inactive Publication Date: 2014-12-17
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with this instrument is that the error is large

Method used

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  • Underground storage type flow and water content monitor

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Experimental program
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Effect test

Embodiment

[0010] refer to figure 1 Embodiments of the present invention are further described:

[0011] The monitor includes base 1, liquid inlet hole 2, liquid outlet hole 3, connector 4, outer cylinder 5, turbine flowmeter 6, array water holdup meter 7, pressure and temperature gauge 8, single flow valve group 9, circuit control Board 11, communication board 12 and battery 13:

[0012] The bottom end of the base 1 is provided with an oil pipe connection thread; the radial liquid inlet hole 2 and the axial liquid passage hole 3 on the side wall of the base 1 form a bridge-type channel; the upper end hole of the base 1 and the outer cylinder 5 are threaded through the connector 4; The outer cylinder 5 is connected with the turbine flowmeter 6, the array water holdup meter 7, the single flow valve group 9, the circuit control board 11, the communication board 12 and the battery 13 through threads from bottom to top. A pressure and temperature gauge 8, a liquid outlet hole 10 is provide...

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Abstract

The invention discloses an underground storage type flow and water content monitor which is designed for quickly and accurately finding water at long horizontal well sections and carrying out production acquisition tests. An oil pipe connection thread is arranged at the bottom end of a base of the monitor, a radial liquid inlet hole and an axial liquid through hole which are formed in the lateral wall of the base form a bridge type channel, and a hole in the upper end of the base is connected with an outer cylinder through a connector. A turbine flowmeter, an array water holdup meter, a check valve set, a circuit control board, a communication board and a battery are connected in the outer cylinder from bottom to top, a pressure gauge and a thermometer are arranged on a check valve set base, and a liquid outlet hole is formed in the lateral wall of the outer cylinder, between the check valve set and the circuit control board. The monitor can be used in a multi-stage mode, the quantity of stages is not limited, quick water exploration and flow and water content monitoring can be carried out in a subsection mode in each layer section of the long horizontal well sections ranging from 15 sections to 20 sections by lowering a tubular column for one time, operation procedures on site can be simplified, labor intensity can be reduced, the water exploration test period can be shortened, and water exploration accuracy can be improved.

Description

technical field [0001] The invention relates to an underground storage type flow rate and water cut monitor, and relates to the technical fields of layered production, water finding and pressure measurement of oil wells. Background technique [0002] At present, intelligent switches are used to regularly control the production of each layer in the segmented water detection test string of casing completion horizontal wells, and the water layer is judged through ground testing and analysis of water content in each segment. The process takes 10 days to produce each layer, and the water search cycle is long, which seriously affects the on-site production progress; the ground on-site sampling is affected by rain and snow, and the sampling of each section of fluid is incomplete and inaccurate, so it is impossible to accurately determine the water outlet position; manual sampling is required every day , sent to the laboratory for analysis, and a single volume of liquid is required ...

Claims

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Application Information

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IPC IPC(8): E21B47/10E21B47/00E21B47/06E21B47/07E21B49/08
Inventor 王百吕亿明黄伟甘庆明牛彩云李大建赵晓伟朱洪征
Owner PETROCHINA CO LTD
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