High temperature well temperature and pressure dynamic monitoring system
A dynamic monitoring, high-temperature well technology, applied in surveying, wellbore/well components, earth-moving drilling, etc., to achieve the effect of easy installation and operation, strong adaptability, and intuitive test results
Inactive Publication Date: 2016-04-20
CHINA UNIV OF PETROLEUM (EAST CHINA)
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0014] The following describes the embodiment of the present invention in detail in conjunction with the accompanying drawings: a high-temperature well temperature and pressure dynamic monitoring system, including a pressure sensor 1, a balanced diaphragm fluid temperature sensor 2, a coaxial capillary 3, a capillary suspension card 4, and a capillary safety extraction device 5. Capillary tee 6. Central automatic control system 7. Data storage and remote transmission system 8. Mechanical and electronic double display 9. Closed-loop micro-gas booster circulation device 11. Pressure sensor 1 and balanced diaphragm fluid temperature sensor 2 Installed or lowered at each measured position of the oil well, connected with a coaxial capillary 3, and pressed in the slot 25 of the capillary suspension card 4 for segmental load-bearing protection along the outer wall of the tubing in the annulus of the tubing and casing Inner and upward connected to the inner quick joint 31 of the capill...
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
Login to View More Abstract
The invention provides a high-temperature well temperature and pressure dynamic monitoring system. According to the high-temperature well temperature and pressure dynamic monitoring system, corresponding data are figured out through processing of software of a central automatic control system (7) and are respectively transmitted to a mechanical electronic direct reading double display screen (9) and a data storage and teletransmission system (8), pressure, temperature, working fluid level height and steam dryness data of various teletransmission layers are respectively displayed and stored, and a technological structure and method for temperature and pressure dynamic monitoring or moving testing of a high-temperature well is completed. According to the high-temperature well temperature and pressure dynamic monitoring system, installation and operation are convenient and fast, interference of other transmission environments does not affect the monitoring system, a drifting phenomenon do not exist, correction is not needed, the monitoring system can stably operate under a high-temperature environment of an oil well for a long time, all the data can be directly read, stored and transmitted in a remote mode, and testing results are intuitive and precise.
Description
technical field [0001] The invention relates to the technical field of diaphragm balance sensors, in particular to a dynamic monitoring system for temperature and pressure of high-temperature wells. Background technique [0002] When crude oil extraction encounters thermal recovery processes such as ultra-deep wells, high-temperature steam injection wells, and fire flooding wells, downhole temperature and pressure data, the most important basis for targeted formulation of enhanced oil recovery processes, have not been able to achieve simultaneous dynamic monitoring so far. Among the various related technologies available at home and abroad, the capillary downhole pressure testing technology can only obtain pressure data, and the volume is too large to waste nitrogen resources; the electronic and optical fiber testing technology cannot meet the heat resistance requirements, and there is a problem of signal drift repair, which cannot Truly reflect the downhole temperature and ...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/06E21B47/07E21B47/047E21B49/08
Inventor 李载敏蔺爱国孙洪涛王作启李莹史建英王琦
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)