Fire flood eclectic ignition method

It is a technology of electric ignition and fire driving, which is applied in the direction of mining fluid, earthwork drilling, wellbore/well components, etc. It can solve the problems of difficult connection of cables and wires, and only re-workover operations, etc., so as to achieve easy implementation, good effect, The effect of strong mobility

Inactive Publication Date: 2009-09-23
LIAOHE GASOLINEEUM EXPLORATION BUREAU
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  • Abstract
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Problems solved by technology

In the prior art, the electric heater method ignition process string [ZL 00267279.0] describes that the electric heater is sent into the oil well by the oil pipe transmission method, and then the cable wire is connected to t

Method used

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  • Fire flood eclectic ignition method

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Embodiment Construction

[0007] As shown in the figure, the ignition device used in the present invention consists of cable wires 1, 11, 13, cable sealer 2, wellhead device 3, screen pipe 4, insulating centralizer 5, igniter 6, conductor 7, bell mouth 8, The check valve 9, the bracket 10, the insulation isolation connector 12, the oil pipe 14, the loop cable 15 and the intermediate frequency power supply control cabinet 16 are composed. Among them, bell mouth 8, check valve 9, bracket 10, tubing 14, and wellhead device 3 constitute the gas injection string, and the ground part of the electric ignition system consists of intermediate frequency power supply control cabinet 16, loop cable 15, cable conductor 1 and cable sealer 2 The downhole part is composed of a conductor 7, an igniter 6, an insulating centralizer 5, a screen pipe 4, an insulating isolation connector 12 and cable conductors 11 and 13.

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Abstract

The invention relates to a fire flood eclectic ignition method. An ignition device adopted by the fire flood eclectic ignition method comprises a steam injection pipe column and an ignition system, wherein the steam injection pipe column comprises a flare opening, a check valve, a bracket, an oil pipe and a wellhead device from top to bottom; the electric ignition system comprises a ground part and an underground part, wherein the ground part comprises an intermediate frequency power supply control cabinet, a loop cable, a cable conductor and a cable sealer, and the underground part comprises a conductor, an igniter, an insulated centralizer, a screen pipe, the cable conductor, an insulated isolation wire connector and the cable conductor from bottom to top. The fire flood eclectic ignition method is easy to operate, the ignition device has high maneuverability, repeatable use, controllable temperature and uniform heating temperature, and fire flood eclectic ignition can obtain good effect by utilizing the ignition device.

Description

Technical field: [0001] The invention relates to a technical method of electric ignition for fire-driven oil recovery used for thermal exploitation of heavy oil, which belongs to the category of heavy oil recovery technology. Background technique: [0002] In the process of thermal recovery of heavy oil, due to the high viscosity of heavy oil, the steam stimulation method is generally used first, and the main methods used later are steam flooding and fire flooding. Compared with steam flooding, fire flooding also has its own advantages. Steam flooding is characterized by fast response, but high investment cost and short life. A large amount of injected steam can drive immovable oil, but requires high equipment investment, high operating cost and complex equipment. The oil recovery by fire flooding is characterized by slow initial response, low cost, and long life, because it relies on the fuel in the oil layer to provide heat, and has obvious technical characteristics. Base...

Claims

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Application Information

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IPC IPC(8): E21B43/24
Inventor 宁奎张弘韬王福国王春鹏孙希勇付明陈和平曲景宽
Owner LIAOHE GASOLINEEUM EXPLORATION BUREAU
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