Atomizing device and foam discharging starting atomization water discharging gas recovery method thereof

An atomization device and core tube technology, which is applied in the fields of fluid production, earthwork drilling, wellbore/well components, etc., can solve the problems of unsatisfactory atomization drainage effect, unreliable anchoring, and difficulty in salvage, etc., and achieve enhanced fogging. The effect of chemical drainage and gas recovery, recovery of bottom hole energy, and smooth salvage

Active Publication Date: 2014-10-15
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical defects of difficult fishing, unreliable anchoring and unsatisfactory atomization drainage effect existing in the existing atomization device, the present invention provides an atomization device and its method for starting atomization drainage and gas collection by foaming

Method used

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  • Atomizing device and foam discharging starting atomization water discharging gas recovery method thereof
  • Atomizing device and foam discharging starting atomization water discharging gas recovery method thereof
  • Atomizing device and foam discharging starting atomization water discharging gas recovery method thereof

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Embodiment 1

[0040] This embodiment provides an atomization device 24, which can well solve the technical defects of the existing atomization device such as difficulty in fishing, unreliable anchoring and unsatisfactory atomization and drainage effects. The structural features of the atomizing device 24 are as figure 1 , figure 2 and image 3 As shown, the feeding head 1, the first pin 2, the fishing head 3, the lock ring 4, the second pin 5, the shear ring 6, the slip seat 7, the suspension sleeve 8, the slip 9, the cone 10, the rubber tube 11. The pressure bearing sleeve 12, the third pin 13, the core tube 14, the resonator 15, the nozzle 16, the cyclone 17, the outer cylinder 18, the sand filter cylinder 19 and other components.

[0041] The delivery head 1 is fixedly connected to the upper end of the core tube 14 through the first pin 2 . The fishing head 3 is installed under the delivery head 1 . The lock ring 4 and the shear ring 6 are placed in the gap between the core tube 14 ...

Embodiment 2

[0050] Combining the structural features of the above-mentioned atomization device 24 and the working principle of using the atomization device 24 to realize deep atomization drainage and gas recovery with foam row activation, the construction process of drainage gas recovery will be described according to the construction sequence.

[0051] (1) Putting and setting the atomization device

[0052] The atomizing device 24 is lowered from the oil pipe 21 in the well with a steel wire. When lowering, the slip 9 slides down the cone 10 and opens to contact with the inner wall of the oil pipe 21 due to gravity. After lowering to the design position below the effusion liquid level 22, the steel wire is lifted, and the slips 9 are locked on the inner wall of the oil pipe 21. Continue to lift the steel wire, cut off the third pin 13, the core tube 14 drives the parts below the resonator 15 to go up, the inner horse tooth buckle of the lock ring 4 and the outer horse tooth buckle of the...

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Abstract

The invention discloses an atomizing device and a foam discharging starting atomization water discharging gas recovery method thereof. The atomizing device comprises a dropping head, a first pin, a fishing head, a lock ring, a second pin, a cutting ring, a clamp seat, a suspension sleeve, a clamp, a cone, a rubber sleeve, a pressure-bearing sleeve, a third pin, a core pipe, a resonantor, a nozzle, a cyclone, an outer tube and a sand filter tube. The water discharging gas recovery method comprises the steps of dropping and seating the atomizing device, discharging the water, recovering the gas and fishing. The atomizing device further stretches an oil pipe to be below a liquid surface of accumulated liquid so as to realize the tertiary atomization of the accumulated liquid, the atomizing degree of the liquid drop is high, and the atomizing water discharging and gas recovery effect is improved; the locking of a horse-tooth buckle is matched with the unlocking of the pins, so that reliability in anchoring is achieved; the removal of the sealing and anchoring of the clamp and the rubber sleeve can be realized by adopting a way for withdrawing the cone, so that reliability in unlocking and success in fishing can be achieved; the water discharging and gas recovery construction requirement of a low-pressure low gas recovery well can be well met.

Description

technical field [0001] The invention belongs to the technical field of drainage and gas recovery for natural gas exploitation, and relates to an atomization device that penetrates below the liquid level of the wellbore accumulation, and also relates to a method for foam row start-up atomization drainage and gas recovery using the atomization device to realize deep atomization at the start of the foam row . Background technique [0002] Gas wells with low pressure and low production enter the late stage of production. Due to the attenuation of formation energy, the gas production rate decreases, so the liquid carrying capacity of the gas well decreases, resulting in fluid accumulation in the wellbore, and even water flooding to stop production, affecting the recovery rate of the gas field. Therefore, drainage gas recovery is an important technology in low pressure and low production gas fields. Downhole atomization drainage gas recovery is a drainage gas recovery technology ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/00
Inventor 郑维师张承武韩婧婧邹鸿江文果苏伟东黄永章武月荣
Owner BC P INC CHINA NAT PETROLEUM CORP
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