Underground adjustable air jet and adjustable measuring instrument for gas well production
It is a technology of adjusting instrument and gas adjustment, which is applied in the direction of wellbore/well components, measurement, production fluid, etc. It can solve the problems of edge water tongue ingress or bottom water coning, gas reservoir productivity reduction, low gas production rate, etc., to achieve The effect of stable gas supply and reasonable gas production speed
Inactive Publication Date: 2017-09-05
安徽店折店信息科技有限公司
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AI Technical Summary
Problems solved by technology
[0003] At present, most downhole gas nozzles use fixed fishing operations to adjust the gas flow, which is risky and poor in real-time. Due to the change of Jinxia pressure difference, the controllable production accuracy is poor, which is not conducive to the fine control of gas wells, thus affecting the service life of gas wells
For gas reservoirs, uneven development will inevitably lead to uneven pressure drop, forming a pressure drop funnel, causing edge water tongue or bottom water coning in areas with rapid pressure drop, shortening the water-free gas production period of the gas reservoir, and affecting gas wells. The service life of some gas reservoirs is greatly reduced
In addition, the gas production rate is too low, and the utilization rate of time and equipment is not high
Method used
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Embodiment 1
[0018] Such as Figure 1-3 As shown, a downhole adjustable gas nozzle and testing instrument that can be used for gas well production includes an adjustment instrument main body 12 and an adjustable air nozzle main body 017, and the adjustment instrument main body 12 is composed of a salvageable cable head The short joint 10, a magnetic locator 9, a gamma meter 8, an instrument slip 7, a motor, a cable release device and a docking adjustment device, etc., the motor includes a slip motor 5 and an adjustment motor 4, and the cable release device The card device includes a docking guide mechanism 1 , the docking adjustment device includes an adjustment mechanism 2 and a docking induction probe 3 , and a slip detection probe 6 is provided inside the instrument slip 7 .
[0019] The adjustable air nozzle main body 017 is composed of a reducer group 012, a support anchor 06, a reducer and a thrust bearing 04, an adjustment rod 03 and a docking bag 01. The docking bag 01 is provided ...
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The invention discloses an underground adjustable air jet and adjustable measuring instrument for gas well production. The instrument comprises an adjustable instrument main body and an adjustable air jet main body, wherein the adjustable instrument main body is composed of a fishing type cable head, a bidirectional telemetry short section, a magnetic positioning instrument, a gamma instrument, an instrument slip, a motor, a cable releasing device and a butt-joint adjusting device; the motor comprises a slip motor and an adjusting motor; a butt-joint guiding mechanism is arranged at the bottom of the adjustable instrument main body; an adjusting mechanism and a butt-joint sensing probe are arranged in the middle of the butt-joint guiding mechanism. According to the invention, the opening degree of the underground air valve can be adjusted in real time; the gas yield of the gas well can be finely adjusted through the ground metering; when the yield of the gas well is influenced by the change in underground pressure difference in the production process, the air jet can be adjusted at any time, so that the purpose of stabilizing yield can be achieved; the principle of reasonable gas collecting speed, no damage to gas well, no well bottom flooding and stable gas supply can be achieved.
Description
technical field [0001] The invention relates to an adjustable gas nozzle and a testing instrument, in particular to a downhole adjustable gas nozzle and a testing instrument which can be used for gas well production, and belongs to the technical field of gas wells. Background technique [0002] In the early stage of gas well production, the formation pressure is high, and the wellhead residual pressure is large. The reasonable output allowed by the gas well is used for production, which has the advantages of high output and low gas production cost (that is, the output remains unchanged, the formation pressure, bottomhole flow pressure, and wellhead pressure continue to decrease over time. ). After the formation pressure drops, the method of increasing the opening of the needle valve of the gas nozzle and reducing the bottom hole pressure can be adopted to continue to maintain the original production of the gas well. [0003] At present, most of the downhole gas nozzles use ...
Claims
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Login to View More IPC IPC(8): E21B43/12E21B47/00
CPCE21B43/12E21B47/00
Inventor 李瑞
Owner 安徽店折店信息科技有限公司