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Device and method for continuously measuring working fluid level depth of oil well and continuously metering produced liquid

A technology of metering device and dynamic liquid surface, which is applied in the directions of measurement, earthwork drilling and production, wellbore/well components, etc. It can solve the problems of large artificial measurement errors, difficult data acquisition in time, synchronization, accuracy and reliability, and large engineering volume.

Inactive Publication Date: 2011-08-31
杨平
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  • Claims
  • Application Information

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Problems solved by technology

First, due to the influence of many factors such as the content of natural gas in the oil well liquid, pressure and temperature, the measurement error of the oil well produced fluid is relatively large, and even cannot be measured; Large, it is difficult to achieve timely synchronization and accurate and reliable data collection; third, the measurement method has a lot of supporting equipment on the ground, a large amount of engineering, difficult management and high one-time investment; fourth, continuous measurement cannot be performed

Method used

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  • Device and method for continuously measuring working fluid level depth of oil well and continuously metering produced liquid
  • Device and method for continuously measuring working fluid level depth of oil well and continuously metering produced liquid
  • Device and method for continuously measuring working fluid level depth of oil well and continuously metering produced liquid

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Embodiment 1

[0075] Embodiment 1, with reference to attached figure 1 and 3 , consists of three parts: a pressure detection module, a signal transmission module 12, and a ground supporting module 13. Each detection unit of the pressure detection module is placed in a certain position in the annular space of the oil jacket, which is composed of 0# (14), 1# (16), and 2# (18) pressure detection units; 0# pressure detection unit 14 is placed in the oil jacket Annular space E zone, measure natural gas pressure sleeve pressure in E zone. When the optical fiber pressure detection method is adopted: the 1# pressure detection unit 16 is placed on the lower edge of the oil well pump body 4; the 2# pressure detection unit 18 is placed on the lower edge of the liner pipe screen assembly 17 of the oil well pump. The signal transmission module 12 is composed of optical cables. The ground supporting module 13 is mainly composed of a trigger unit 20 at the top and bottom dead center of the pumping unit...

Embodiment 2

[0077] Embodiment 2, with reference to attached figure 2 and 3 , consists of three parts: a pressure detection module, a signal transmission module 12, and a ground supporting module 13. Each detection unit of the pressure detection module is placed in a certain position in the annular space of the oil jacket, which is composed of 0# (14), 1# (16), and 2# (18) pressure detection units; 0# pressure detection unit 14 is placed in the oil jacket Annular space E zone, measure natural gas pressure sleeve pressure in E zone. When using the electronic pressure detection method: 1#16 and 2#18 pressure detection units are respectively placed at a certain depth below the initial liquid level. The recommended positions are 50 meters and 100 meters. The signal transmission module 12 is composed of cables. The ground supporting module 13 is mainly composed of a trigger unit 20 at the top and bottom dead center of the pumping unit, a signal transceiver unit 19, a data processing and sto...

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Abstract

The invention belongs to a device and processing method for continuously measuring working fluid level depth of an oil well and continuously metering produced liquid. The device comprises three parts, namely a pressure detection module, a signal transmission module, a ground supporting module. Detection units of the pressure detection module are respectively arranged at specific positions in an oil sleeve annular space; the ground supporting module comprises upper and lower stop moment trigger unit of a pumping unit, a signal transceiving unit, a data processing and storing unit, an oil well production information database server, a network transmission unit, a client terminal and a control unit. In the processing method, the data processing and storing unit processes pressure values P0#, P1# and P2# detected by the detection units and the input power P of a motor to determine working fluid level depth in the oil sleeve annular space, oil well fluid production, fluid supply amount of an oil layer and comprehensive density and volumetric water content of produced liquid and other parameters which can reflect the production, technology, process of an oil well.

Description

technical field [0001] The invention relates to a device and a method for continuously measuring the depth of an oil well fluid level and continuously measuring production fluid in the technical field of petroleum exploitation. technical background [0002] In oilfield development and production, the dynamic liquid level depth H of an oil well is an important technical parameter that characterizes the production and technical status of an oil well. On the one hand, the increase of the depth H of the dynamic liquid surface leads to the decrease of submergence and suction pressure of downhole production equipment (such as oil well pumps, electric submersible pumps and downhole screw pumps, etc.), and part of the gas in the liquid is separated out to occupy its internal effective volume space. , reducing its fullness and volumetric efficiency; on the other hand, the ability of liquid to flow to the downhole production equipment will be weakened and the flow velocity will also b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/04
Inventor 杨平马晖曲洪真马代鑫李凯凯徐亮张志玉韦修海张立臣乜冠祯
Owner 杨平
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