Device and method for measuring underground flow rate of petroleum well

A flow measurement device and technology for oil wells, applied in measurement, earthwork drilling, wellbore/well components, etc., can solve problems that cannot meet the needs of actual production

Active Publication Date: 2015-07-08
西安威盛电子科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Existing equipment technology can not meet the needs of actual production

Method used

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  • Device and method for measuring underground flow rate of petroleum well
  • Device and method for measuring underground flow rate of petroleum well
  • Device and method for measuring underground flow rate of petroleum well

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Embodiment Construction

[0053] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, where the schematic embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0054] See attached figure 1 As shown, a kind of petroleum downhole flow measuring device of the present invention comprises a ground logging vehicle 10, and an instrument string connected to each other by a cable 7 and located in the downhole casing 9 sleeved in the oil pipe 8. When lifting construction operations, the instrument string includes The horse tap 6, centralizer 2, magnetic positioning nipple 5, centralizer 2, differential pressure density meter 4, flow logging tool 3, centralizer 2 and plug 1 are connected sequentially from top to bottom to realize lifting construction operations ;

[0055] The flow logging tool 3 is equipped with a circuit system to control the motor or hy...

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Abstract

The invention discloses a device and a method for measuring underground flow rate of a petroleum well. The device comprises a ground logging truck, and an instrument string which is connected through a cable and arranged in a sleeved oil pipe of an underground sleeve, wherein the instrument string comprises a halter, a first centering device, a magnetic positioning shot, a second centering device, a pressure difference density meter, a flow logger, a third centering device and a plug; a circuit system control motor or a hydraulic driving arm is mounted on the flow logger; static pressure sampling openings are respectively formed in the control motor or the hydraulic driving arm and the pressure difference density meter; the control motor or the hydraulic driving arm is opened or closed to measure underground flow rate of the petroleum well. According to the device, minimum annular section area between the arm and the sleeve is adjusted through the flow logger, so that the flow logger can be adapted to oil wells with various size and aperture; the construction processes are decreased; the working cost is saved; the working hours are reduced; the flow logger is applied to measuring of flow rate of a vertical shaft and a large-inclination-degree well, and the measuring precision is high.

Description

technical field [0001] The invention belongs to the category of measurement technology in the petroleum industry, and specifically relates to a petroleum downhole flow measurement device and a measurement method. The petroleum downhole flow measurement method and device involved in the present invention are especially suitable for vertical wells and highly inclined wells. Background technique [0002] With the rapid development of the petroleum industry, the development and production management of oilfields are gradually developing towards intelligent management, which has been promoted and applied by Guangfa. Downhole flow control technology is an indispensable and important part of oilfield technology, and it mainly completes operations by lowering flow controllers in oil wells. [0003] Conventional oil well flowmeter measurement devices mainly include collector flowmeters, turbine flowmeters, etc. Its main working principle is that a sensor is installed on the turbine ...

Claims

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Application Information

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IPC IPC(8): E21B47/00
CPCE21B47/00
Inventor 詹保平史建辉任晓宁
Owner 西安威盛电子科技股份有限公司
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