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An atomization device and its method for starting atomization drainage and gas recovery by foaming

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

Active Publication Date: 2016-08-24
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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  • An atomization device and its method for starting atomization drainage and gas recovery by foaming
  • An atomization device and its method for starting atomization drainage and gas recovery by foaming
  • An atomization device and its method for starting atomization drainage and gas recovery by foaming

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Experimental program
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Effect test

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 atomization device and its method for starting atomization drainage and gas recovery by soaking and discharging. The atomization device includes a feeding head, a first pin, a fishing head, a lock ring, a second pin, a shear ring, and slip Seat, suspension sleeve, slips, cone, rubber cylinder, pressure bearing sleeve, third pin, core pipe, resonator, nozzle, cyclone, outer cylinder, sand filter cylinder. The drainage and gas recovery method includes putting in and setting the atomization device, drainage and gas recovery, and salvage construction. The atomization device of the present invention goes deep below the liquid surface of the oil pipe effusion to realize three times of atomization of the effusion, and the atomization degree of the droplets is high, which enhances the effect of atomization drainage and gas recovery; The anchor is reliable; the release of slips and rubber tubes is achieved by the way of exiting the cone, which is reliable for unlocking and smooth fishing; it can well meet the construction requirements of drainage and gas production for low-pressure and low-production gas wells.

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 Patents(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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