Well logging power graph method and device

A technology of metering device and metering method, which is applied in the directions of surveying, earth-moving drilling, wellbore/well components, etc., can solve the problem of high investment cost, increase of single-well equipment and installation workload, and difficulty in meeting the low-cost operation of oil wells in low-permeability oil fields. And other issues

Active Publication Date: 2006-03-01
PETROCHINA CO LTD
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Problems solved by technology

However, when this method is used, accessories such as metering tanks and pipe valves need to be installed at the wellhead, and oil well pipelines need to be reconnected, which increases the workload of single well equipment and installation.
Moreover, the measurement of the device is affected by the pulsating airflow produced by the irregular gas outlet of the oil well, which will cause the flowmeter to overturn by mistake, seriously affecting the test accuracy
[0005] 3. Movable metering vehicle: Since the device needs to be reconnected to the oil well pipeline during metering, the accuracy is poor, especially when used in winter, it is easy to cause pipeline blockage
Since the existing oil, gas, and water ratio sensors have not been successfully developed, the collection of key parameters cannot be guaranteed, and it

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  • Well logging power graph method and device
  • Well logging power graph method and device
  • Well logging power graph method and device

Examples

Experimental program
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Embodiment

[0073] Embodiment: The detection device of oil well liquid production metering by Gongtu method comprises:

[0074] A. On-site data acquisition main components

[0075] a. Well site power supply.

[0076] b. Load sensor (2): see attached figure 1 . The installation position of the load sensor (2) is on the wellhead rope hanger (1). The measuring range of the load sensor (2) is 0-150kN, and the precision is 0.5%. See attached Figure 4 . The structure of the load sensor (2) is: a strain gauge (12) is pasted on the inner wall of the strain body (11). The two ends of the strain body (11) have circular shells (10), and one end of the shell (10) is connected to the circuit board protective cover (15) and the cylindrical plug protective cover (16). The transmitter circuit board (9) is fixed on the load transfer fitting (14). The strain gauge wires are connected to the wiring board (13) and the transmitter wiring board (9), and the output end of the transmitter wiring board (...

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Abstract

The present invention relates to oil well output liquid measuring power graph method and device. Oil well liquid output is measured through analysis of the 3D vibration of oil pumping rod column, oil pipe column and liquid column and the time relationship of their displacement, speed, strain, stress and load, research of the mutual coupling of the force and displacement of these three sys, acquiring oil well relating data with load and displacement sensors, and computer treatment to calculate the effective stroke of the oil pump. Meanwhile, the present invention also performs the diagnosis and analysis of oil well work state and the remote monitoring of oil well.

Description

technical field [0001] The invention relates to a method for metering the output fluid of an oil pumping well and an adopted device thereof. The produced liquid metering technology is not only suitable for automatic metering construction in newly developed oilfields, but also suitable for the reconstruction of surface metering systems in old oilfields. Background technique [0002] At present, domestic oilfield oil well production fluid measurement mainly adopts technical means such as double-volume single-well measurement, wellhead tipping bucket measurement, movable metering vehicle measurement, and liquid level method. [0003] 1. Double-volume single-well metering: This is the most common metering method, that is, the output fluid of each oil well is transported to the metering station through the oil outlet pipeline according to the well group, enters the oil-gas separator, and is separated from the gas-liquid , to measure the produced fluid, and then enter the oil gat...

Claims

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Application Information

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IPC IPC(8): E21B47/00E21B47/12E21B47/26
Inventor 黄伟郭方元杨瑞姚斌王永全
Owner PETROCHINA CO LTD
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