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Closed gas well drainage pry

A closed, gas well technology, applied in the directions of sealing/isolation, wellbore/well components, production fluid, etc., can solve the problem of unexpected blowout without setting up gas wells, and achieve strong construction continuity, high pumping efficiency and adaptability strong effect

Active Publication Date: 2021-09-07
陕西茂发能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to aim at the shortcomings of the prior art, adopting the method of setting a hydraulic injector, a sealing plug, a blowout preventer and a double-acting blowout preventer, and designing a method that can seal and drain the gas well. The drainage skid for blowout solves the problem that the existing gas well drainage device is not equipped with a device to deal with unexpected blowout of the gas well, and realizes a new strong drainage process with large depth of entry, high suction efficiency, safety and efficiency

Method used

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Examples

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Embodiment 1

[0024] Such as Figure 1-4 As shown, a closed type gas well drainage skid includes an operation vehicle 1, and the operation vehicle 1 is provided with a steel wire pulley 2, and includes a gas tree 3, and the top of the gas tree 3 is connected to a blowout preventer 4 to prevent Nozzle 5, a steel wire sealing plug is arranged near the top in the described blowout preventer 5, and the described blowout preventer 5 is suspended on the work vehicle lever 7 of the work vehicle 1 through the pulley block 6, and the work vehicle dials The top of the rod 7 is provided with a sky pulley 8, and the steel wire 27 on the steel wire ground pulley 2 bypasses the sky pulley 8 and penetrates from the top of the blowout preventer 5 to the lower end of the gas tree 3 to connect the drawer 9. Hydraulic blowout prevention scissors 23 are also provided between the blowout preventer 5 and the gas tree 3 .

[0025] In this embodiment, when in use, the lower end of the X-mas tree 3 is inserted int...

Embodiment 2

[0027] Such as Figure 1-4 As shown, a closed type gas well drainage skid includes an operation vehicle 1, which is provided with a steel wire pulley 2, and also includes a gas tree 3, the top of which is connected through a blowout preventer 4. The blowout preventer 5 is provided with a steel wire sealing plug near the top end of the blowout preventer 5, and the blowout preventer 5 is suspended on the work vehicle lever 7 of the work vehicle 1 through a pulley block 6, and the work vehicle The top of the driving rod 7 is provided with a sky pulley 8, and the steel wire 27 with a diameter of 8 mm on the steel wire ground pulley 2 bypasses the sky pulley 8 and penetrates from the top of the blowout preventer 5 to the lower end of the gas tree 3 to connect the drawer. 9.

[0028] Wherein, the steel wire sealing plug is composed of a packing sleeve 11, a packing 12 located in the packing sleeve 11, a cylinder liner 13, and a piston 14 matched with the cylinder liner 13 (such as ...

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Abstract

The invention discloses a closed gas well drainage pry, and belongs to the technical field of gas well drainage gas production equipment manufacturing. The pry is used for draining water in a gas well shaft out of a gas well, and comprises an operation vehicle, a derrick, a steel wire roller and a top-lower pulley block are arranged on the operation vehicle, the pry further comprises a blowout preventer, a blowout prevention pipe and a hydraulic injection head, a steel wire sealing plug is arranged in a position, near a top end, of the blowout prevention, the blowout prevention pipe is hung on a derrick pulling rod of the operation vehicle through the pulley block, a top pulley is arranged at the top end of an operation vehicle pulling rod, and a steel wire passes through a lower pulley and then bypasses the top pulley to penetrate into a gas production tree from the top end of the blowout prevention pipe to be connected with a puller. The closed drainage pry is a safe suction tool capable of preventing jacking and clamping, a novel forced drainage process means which is large in well entering depth, high in suction efficiency, safe and efficient is achieved, and compared with an intermittent gas lift process, the pray has low damage to a reservoir, and is low in cost, high in construction continuity, simpler in process and higher in adaptability.

Description

technical field [0001] The utility model relates to a closed gas well drainage skid, which is used for draining the water in the gas well shaft out of the gas well, and belongs to the technical field of gas well drainage and gas production equipment manufacturing. Background technique [0002] There are many technologies for gas well drainage, such as foam drainage gas recovery technology, plunger gas lift, compressor gas lift, etc. These technologies belong to reducing the density of the liquid in the wellbore by chemical or physical means or assisting the wellbore. The gas carries the liquid, but it always depends on the ability of the production layer. Once the production capacity is insufficient, these process technologies are ineffective. How to use external force to forcibly drain the gas and liquid in the wellbore is to solve the technical problem in the middle and later stages of the gas well. Screw pumps and electric submersible pumps are technological measures rely...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/06E21B43/00
CPCE21B33/06E21B43/00
Inventor 刘涛金涛
Owner 陕西茂发能源科技有限公司
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