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Method for applying the physics of equipment located in the horizontal end of a deviated well to a productive hydrocarbon bed

一种水平部分、水平井的技术，应用在石油和天然气产业领域，能够解决底孔渗透性降低等问题

Inactive Publication Date: 2017-09-22
DEVAS (BEIJING) ENERGY TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] All of the above lead to reduced bottom hole permeability and, therefore, production capacity typically around 60% of design, and in worst cases complete cessation of well production if the damage is very deep

Method used

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  • Method for applying the physics of equipment located in the horizontal end of a deviated well to a productive hydrocarbon bed
  • Method for applying the physics of equipment located in the horizontal end of a deviated well to a productive hydrocarbon bed
  • Method for applying the physics of equipment located in the horizontal end of a deviated well to a productive hydrocarbon bed

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Embodiment Construction

[0016] This method is implemented in the following way. Since the detonation of the calibration line results in plasma formation and radially directed high voltage shock waves, the device to generate periodically directed short pulses is submerged in a horizontal well using a coil former unit. The device consists of a block of storage capacitors arranged in a circular metal container, connected to a control module and a device located at the wellhead, which has a transmission capability of charging and discharging of the storage capacitors, for activating the device, thereby A series of continuous elastic vibrations are generated at predetermined points in the horizontal enclosure.

[0017] In carrying out the method, not only does the device need to be submerged, but some force needs to be used to push the device down, as opposed to working at a vertical well. To do this, a technique called "coiled tubes" is used, which is immersed in a well of oil well pipe wound on a drum,...

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Abstract

The invention relates to the field of oil and gas industry for stimulating the production of oil. The method involves delivering and placing a source having two electrodes in a horizontal wellbore in a device equipped with an electrical accumulation unit, the operator commands the electrodes to be electrically closed using calibrated wires, causing the source to decompose and form a horizontal A radially expanding high pressure target shock wave in a designated point of a wellbore in order to increase the permeability of the bottom hole region of the working portion of the horizontal wellbore. The present invention provides the most efficient and environmentally friendly production of inclined horizontal wells.

Description

technical field [0001] The present invention relates to the field of oil and gas industry to stimulate the production of oil, gas, gas methane and shale gas using devices with flammable calibration wires placed in vertically inclined horizontal wells and by means of activated physical fields. Background technique [0002] In the oil and gas industry of this century, the number of deviated horizontal wells has increased, and the design of enhanced drainage areas of productive formations has become very complex. It is believed that horizontal wells may have a larger contact surface with the formation, which increases the well's hydrocarbon recoverability factor and its ability to absorb hydrocarbons. The hydrocarbon influx stimulation and construction, development, and maintenance of such wells are very different from hydrocarbon production techniques through vertical wells, and therefore stimulation methods used for vertical wells are largely unsuitable for horizontal wells. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/16E21B43/25E21B23/14E21B28/00E21B17/00
CPCE21B17/1085E21B28/00E21B43/003E21B23/14E21B43/16E21B43/25
Inventor 彼得·格奥尔基耶维奇·阿格耶夫安德烈·瓦季莫维奇·博奇卡廖夫尼基塔·皮特罗维奇·阿格耶夫
Owner DEVAS (BEIJING) ENERGY TECH DEV CO LTD