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A flow meter used for measuring and adjusting in oilfield injection wells

A technology of flowmeter and electromagnetic flowmeter, which is applied in the field of flowmeter and can solve problems such as single function

Active Publication Date: 2021-04-30
四川省科学城久利电子有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the existing electromagnetic flowmeter can only measure the liquid flow, and has a single function. The combination of the flowmeter and the machine with adjustable and adjustable plugging range can not only realize the adjustment of the water injection volume while measuring the flow rate, but also realize the adjustment of the water injection volume while measuring, which is easy to operate and greatly improves the performance of the flowmeter. measurement accuracy

Method used

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  • A flow meter used for measuring and adjusting in oilfield injection wells

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Embodiment

[0026] Such as figure 1 As shown, the present invention is a flow meter used for measuring and adjusting the oil field injection well, including an electromagnetic flow meter 2, which is characterized in that it also includes a vertically arranged support rod body 1, and the electromagnetic flow meter 2 is coaxially connected to the support rod body 1, the outer wall of the support rod body 1 is connected with an auxiliary arm 6 for clamping on the water inlet plane at the top of the water distributor and a mechanical arm 4 for grabbing the adjustable plug. The auxiliary arm 6 and the mechanical arm 4 are symmetrically arranged on the On both sides of the support rod body 1, the electromagnetic flowmeter 2 is always located above the auxiliary arm 6, and one end of the mechanical arm 4 and the auxiliary arm 6 is hinged with the outer wall of the support rod body 1; the end of the mechanical arm 4 and the auxiliary arm 6 away from the hinged end is free end, the free end of the...

Embodiment 2

[0035]Such as figure 1 As shown, a system for measuring and adjusting the flow rate of injection wells includes a flow meter, an oil pipe 7 and a water distributor 8 arranged in the oil pipe, and an adjustable plug 9 is arranged on the inner wall of the working pipe of the water distributor. The support rod body of the flowmeter is located in the working pipe vertically arranged in the water distributor, the mechanical arm of the flowmeter is connected with the upper end of the plug, the electromagnetic flowmeter of the flowmeter is located in the oil pipe above the upper end surface of the water distributor, and includes the driver and The driving structure is set in the support rod body and controlled by the program. The driver is connected with the electromagnetic flowmeter and the driving structure. The driving structure is connected with the hinge end of the mechanical arm and the auxiliary arm. The driving structure can control the simultaneous rotation of the mechanical ...

Embodiment 3

[0037] Such as figure 1 As shown, a method for measuring and adjusting the flow rate of injection wells, step 1) put the flowmeter into the oil pipe, and the support rod enters the water distributor, so that the mechanical arm is connected with the upper end of the adjustable plug, and the auxiliary arm is positioned On the upper end surface of the water distributor, the electromagnetic flowmeter is located in the oil pipe above the upper end surface of the water distributor; step 2) After the electromagnetic flowmeter measures the flow rate of the liquid flow flowing into the water distributor, the electromagnetic flowmeter transmits the signal to the driver, and the driver The program analyzes the flow rate, and then controls the driving structure to drive the mechanical arm to rotate, and the mechanical arm drives the adjustable plug to lift or lower to realize flow adjustment.

[0038] In the above, the driving mechanism and locking mechanism that can control the opening o...

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Abstract

The invention discloses a flowmeter used for measuring and adjusting the injection well in an oil field, which includes an electromagnetic flowmeter and a vertically arranged support rod body. The electromagnetic flowmeter is coaxially connected to the upper end of the support rod body, and the outer wall of the support rod is connected There is an auxiliary arm for clamping on the top plane of the water distributor and a mechanical arm for grabbing the adjustable plug. The auxiliary arm and the mechanical arm are symmetrically arranged on both sides of the support rod body, and the electromagnetic flowmeter is always located above the auxiliary arm. The free end of the mechanical arm can lift the adjustable plug and move up and down to adjust the flow of the adjustable plug. The flow meter while measuring and adjusting in the present invention combines the electromagnetic flow meter with the mechanical arm that can adjust the range of the adjustable stopper, which can not only realize the adjustment of the water injection volume while measuring the flow rate, but also realize the side measurement of the water injection volume Side adjustment, easy to operate, and greatly improved the measurement accuracy of the flowmeter.

Description

technical field [0001] The invention relates to a flowmeter, in particular to a flowmeter used for measuring and adjusting in injection wells of oil fields. Background technique [0002] When injecting media into oil wells in traditional oilfield operations, in order to inject water into the formation, plugs with different ranges have to be lowered into the well, and then flowmeters are used to measure the flow rate of each different plug in the well, and finally the water injection volume of the formation can be matched. Therefore, the plug belt cannot be adjusted. The problem of repeatedly going down the well has caused labor-intensive, time-consuming, and labor-intensive problems. Therefore, in current construction, adjustable plugs are usually used for operations. At the same time, due to the different characteristics of the main oil displacement medium water injection, polymer injection, and ternary polymer, the difficulty of construction is increased. Among them, the e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/20E21B47/00
CPCE21B43/20E21B47/00
Inventor 陈军刘黄莹赵海云涂高鹏赵晓鹏同凯李小林曾威
Owner 四川省科学城久利电子有限责任公司