Device and method for testing water absorption profile of water injection well based on temperature monitoring
A water absorption profile and testing device technology, which is applied in earthwork drilling, wellbore/well components, buildings, etc., to achieve the effects of low cost, accurate and reliable water absorption profile data, and convenient operation and management
Active Publication Date: 2021-07-30
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology
These difficult problems have not been resolved in the quantitative interpretation of the isotope water absorption profile
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[0025] With one gas field water reinjection well, the daily water injection volume is 100-200m 3 An example of a temperature monitoring-based water absorption profile testing device and method for a reinjection well. The present invention will be further described in conjunction with accompanying drawings.
[0026] according to figure 1 . A water absorption profile testing device for water injection wells based on temperature monitoring, which is composed of a power generation system, a power system, an automatic fluid barrier system, a device internal fixing system and a temperature monitoring system, characterized in that: the temperature monitoring system is installed on the top of the device, It consists of an upper transferable joint (15), a temperature probe (16), an upper gamma probe (17), and a lower gamma probe (18). The upper transferable joint (15) is connected to the rope cap head or tubing for testing, and the vertical well The steel wire is directly connected ...
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The invention relates to a water absorption profile testing device and method for water injection wells based on temperature monitoring to obtain a water absorption profile by using stratum temperature monitoring. It makes the obtained water absorption profile of the injection well accurate and perfect. Its technical solution: the device is composed of power generation system, power system, fluid automatic barrier system, device internal fixing system and temperature monitoring system; the temperature monitoring system is installed on the top of the device, and the temperature measurement device adopts high thermal conductivity integral molding technology; the fluid automatic barrier system Installed on the upper and lower ends of the device and inside the device, the lower end of the partition is supported by a long rod, and the middle part of the long rod is equipped with a clamp and rivet; the internal fixing system of the device is composed of a fixed frame and a fixed block; the power system is installed outside the device, and the axle and wheels The fixed frame is connected, and a convoluted part is installed at the wheel; the power generation system is installed at the bottom of the device, the generator is fixed on the fixed block, and the motor controller is connected with the generator. The device has low cost, and the data obtained by the method is accurate and reliable, and can be used for water injection wells.
Description
technical field [0001] The invention relates to a water absorption profile testing device and method for water injection wells based on temperature monitoring to obtain a water absorption profile by using stratum temperature monitoring. Background technique [0002] The water absorption profile of the water injection well reflects the water absorption capacity of the formation. Through the water absorption profile, the longitudinal distribution of the injected water can be understood, the waterline advance can be predicted and controlled, the water absorption of the oil layer can be monitored, and the remaining oil distribution can be analyzed. Scientific analysis and application of water absorption profile data is the main means to understand the underground changes of reservoirs and analyze oilfield development, and it is an important link to guide oilfield development and plan deployment. The conventional method of researching stratification ability is obtained by means o...
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IPC IPC(8): E21B47/07E21B49/00
CPCE21B49/00E21B47/07
Inventor 谭晓华李胜胜李晓平江利毛正林刘承佚
Owner SOUTHWEST PETROLEUM UNIV