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Foaming agent injection skid-mounted device

A foam agent and injection system technology, applied in the direction of production fluid, wellbore/well components, earthwork drilling and production, etc., can solve the problems of increased water content in the produced fluid, steam gas channeling, and poor effect, so as to improve the oil-gas ratio , reduce interfacial tension, and reduce the cost of plugging and adjustment

Pending Publication Date: 2016-06-01
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The low steam injection efficiency is the main reason for the above problems
Formation heterogeneity together leads to serious steam channeling, the injected steam flows from the high permeability zone, and the low permeability zone rich in remaining oil has not been effectively produced, which leads to the increase of water content in the produced fluid after multiple rounds of huffing and puffing, and the effect becomes poor

Method used

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  • Foaming agent injection skid-mounted device
  • Foaming agent injection skid-mounted device
  • Foaming agent injection skid-mounted device

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Experimental program
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Effect test

Embodiment Construction

[0028] The detailed description and technical content of the present invention are described below with the accompanying drawings, but the accompanying drawings are only provided for reference and description, and are not intended to limit the present invention.

[0029] Such as Figure 1-6 As shown, configure the nitrogen bubble injection skid according to the effect diagram, and the chemical tank and heating system, injection pump and distribution valve system, power distribution and monitoring system accessories inside the skid should be selected and installed according to the corresponding structure diagram. The method of using the device includes: step 1, injecting the external foam agent into the skid; step 2, injecting nitrogen into the skid by the nitrogen truck; Pressure, foam agent flow, monitor distribution valve group high-pressure nitrogen inlet pressure, nitrogen flow, monitor foam tank temperature, liquid level, and finally output high-pressure nitrogen foam.

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Abstract

The invention discloses a foaming agent injection skid-mounted device. The foaming agent injection skid-mounted device comprises an agent tank system, an injection system and a feed pump, and the injection system and the feed pump are both connected with the agent tank system. The agent tank system comprises an agent tank and a heating system connected to the agent tank. The agent tank, the heating system, the injection system and the feed pump are all arranged on a base to form a skid-mounted design. The agent tank, the heating system, the injection system and the feed pump are all arranged inside a carriage body in a covered mode. The bottom of the carriage body is fixedly connected with the base. The carriage body is provided with a door and a window. According to the foaming agent injection skid-mounted device, linkage prolife control over a steam flooding block is achieved, and the development effect of heavy oil steam flooding is improved. The whole foaming agent injection skid-mounted device has the characteristics that the device is convenient to transport, internal facilities are compact, and daily operation is convenient.

Description

technical field [0001] The invention relates to oil extraction technology, in particular to a skid-mounted device for injecting foam agent. Background technique [0002] The heavy oil reservoir enters the later stage of multiple rounds of steam huff and puff, and the development effect becomes worse, which is manifested by low periodic oil production, low oil-gas ratio, and high comprehensive water cut. The low sweep efficiency of injected steam is the main reason for the above problems. Formation heterogeneity together leads to serious steam channeling, the injected steam flows from the high permeability zone, and the low permeability zone rich in remaining oil has not been effectively produced, which leads to the increase of water content in the produced fluid after multiple rounds of huffing and puffing, and the effect becomes poor . [0003] By adding foam agent and nitrogen, foam is generated in the pores of the formation, and the high-strength foam film reduces the s...

Claims

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Application Information

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IPC IPC(8): E21B43/22
Inventor 毕义泉吴柏志张广卿陈军任福生常峰赵晓张艳君于法珍舒华文
Owner CHINA PETROLEUM & CHEM CORP
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