Air foam flooding produced gas on-line inspection apparatus and process

An air foam and detection device technology, applied in the field of oil production, can solve problems such as hidden safety hazards, different instrument proficiency, and large labor load, and achieve the effect of ensuring safe production, improving research level and application effect, and ensuring smooth production.

Active Publication Date: 2015-11-25
PETROCHINA CO LTD
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Due to the large number of oil wells in the test area and the mountainous area, the labor load is too large, so the test work cannot be carried out normally; in addition, due to

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Air foam flooding produced gas on-line inspection apparatus and process

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example 1: Such as figure 1 As shown, an online detection device for gas produced by air foam flooding,

[0027] 1. Gas detection device:

[0028] Mainly by O with data display function 2 , CO, CO 2 It is composed of combustible gas detection transmitter 10, solenoid valve 8, GPRS data acquisition and control module, and industrial control computer.

[0029] 2. Gas collection and processing device:

[0030] A gas collection, control and processing device composed of flow controller 4, solenoid valve 8, gas-liquid separator (with pressure control function), filter, etc. Provide clean produced gas to the gas detector at an allowable flow rate and pressure to avoid damage to the detector and connecting pipelines, and to ensure the safe and smooth operation of the detection device.

[0031] 3. GPRS network and software data acquisition processing analysis control device:

[0032] Collect and display the output gas composition parameters of the required detection wells, and store the...

Example Embodiment

[0050] Example 2: Such as figure 1 As shown, an online detection device for gas produced by air foam flooding,

[0051] (1) The linear distance between the gas detection cabinet and the oil-gas separator is 20-30m;

[0052] (2) The gas detection cabinet is at a linear distance of 5m from the vent point, and the vent end is raised by 3m (protected by a rain cap);

[0053] (3) The gas sampling pipeline and the vent pipeline are galvanized pipes, and the connection with the cabinet is threaded (the material and joints in the cabinet are stainless steel);

[0054] (4) The gas transmitter has dual modes of remote transmission and display;

[0055] (5) The sampling pipeline and the vent pipeline are heat-insulated, using DN15 galvanized pipe and DN25 galvanized pipe respectively;

[0056] (6) 220VAC adopts aviation plug connection method, if not equipped with heating belt, the power is 220V / 10A; otherwise, 220V / 50A power supply access power is required;

[0057] (7) The acquisition control cab...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

An air foam flooding produced gas on-line inspection apparatus and process, and belongs to the technical field of oil extraction. An explosion-proof power supply 1 is connected to and provides power for a flow controller 4, a solenoid control valve 5, an O2, CO, CO2 and combustible gas detection transmitter 10, a GPRS network device 12 and all pipe insulation heating devices. A wellhead casing head gas is introduced into a flow controller 4 through a gas introduction pipe; the other end of the flow controller 4 is connected to the solenoid control valve 5 via line; the other end of the solenoid control valve 5 is connected a buffer tank 6 via line; the bottom of the buffer tank 6 is connected to an electromagnetic valve 8; a pipe on the upper part of the buffer tank 6 is connected to a gas filter 9; the other end of the gas filter 9 is connected to the O2, CO, CO2 and combustible gas detection transmitter 10 via a pipe; the O2, CO, CO2 and combustible gas detection transmitter 10 is connected to a data acquisition unit 11; the data acquisition unit 11 collects and transmits the test data to the GPRS network device 12 and transmits the data to the a computer software apparatus 7 in a control room.

Description

technical field [0001] The invention relates to an on-line detection device and a process method for air foam flooding produced gas, belonging to the technical field of oil recovery. Background technique [0002] The air foam flooding technology is to use a blower to inject a certain amount of air into the oil layer through the injection well. Due to the existence of natural fractures, bedding and vertical fractures formed by fracturing in the formation, gas channeling is prone to occur; or, due to the long-term injection of water along the large The channel flow further scours the formation, increases the heterogeneity, and is prone to gas channeling; these unfavorable factors will cause the injected gas to be produced from the oil well prematurely; because the air contains a certain amount of oxygen, it is easy to produce oxygen from the oil well. Severe corrosion occurs to oil production equipment, especially when the oxygen concentration reaches a certain amount, it is p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N33/00
Inventor 李安琪赵继勇高春宁李兆国胡建国陈辉商永滨孟浩曲本全张康王靖华陈杰李言冯白羽庞岁社
Owner PETROCHINA CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap