Method for determining fireflooding combustion temperature of heavy oil reservoir by utilizing clay minerals
A technology of clay minerals and combustion temperature, applied in material analysis using radiation diffraction, material analysis using wave/particle radiation, measuring devices, etc., can solve the problem of high cost, single monitoring object, and inability to monitor the temperature of fire flooding reservoirs, etc. question
Active Publication Date: 2021-03-16
PETROCHINA CO LTD
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At present, the commonly used fire flooding temperature monitoring method is to use the thermocouple arranged in the development well to monitor the temperature of the ignition well or a certain depth of the well, but this method is costly, the monitoring object is single, and it is impossible to realize the fire flooding of each production interval oil reservoir. temperature monitoring
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
[0035] In order to have a clearer understanding of the technical features, purposes and beneficial effects of the present invention, the technical solution of the present invention will be described in detail below in conjunction with the following specific examples, but it should not be construed as limiting the scope of the present invention.
[0036] Currently, the commonly used fire flooding temperature monitoring method is to use the thermocouples arranged in the development well to monitor the temperature of the ignition well or a certain depth of the well, but this method is costly and has a single monitoring object, and it is impossible to monitor the oil in each production interval of fire flooding. In order to solve the problem of reservoir temperature monitoring, the present invention utilizes core data (borehole wall coring or cores obtained from coring wells) to carry out indoor high-temperature physical simulation tests at different temperatures, and analyzes the t...
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 method for determining the fireflooding combustion temperature of a heavy oil reservoir by utilizing clay minerals. The method comprises the following steps: obtaining the total content of the clay minerals in a core of a target research area under different temperature conditions and the relationship between the total content and the temperature; obtaining diffraction curves of different clay minerals in the rock core of the target research area, and further determining the relation between the content of different types of clay minerals and the temperature; respectively establishing a relationship model of the total content of the clay minerals in the rock core, the contents of different types of clay minerals and the temperature; utilizing the total content of clay minerals in reservoir rock after fireflood in the target research area or the content of different types of clay minerals to calculate the reservoir fireflood combustion temperature after fireflood in the target research area according to the total content of clay minerals in the rock core, the content of different types of clay minerals and the temperature relation model; and / or comparing thediffraction curves of different clay minerals in reservoir rock after fireflood in the target research area with the diffraction curves of different clay minerals in the rock core to determine the reservoir fireflood combustion temperature after fireflood in the target research area.
Description
technical field [0001] The invention relates to a method for determining the burning temperature of heavy oil reservoirs by using clay minerals, and belongs to the technical field of petroleum development. Background technique [0002] Fire flooding is a thermal oil recovery method that generates heat inside the oil layer to cause high-temperature oxidation reaction between crude oil and injected air or oxygen, releases a large amount of heat and gas, and displaces unburned crude oil to production wells. This method has no heat loss along the wellbore, and has the advantages of high recovery, low cost and wide application range, and can be used as an effective replacement technology after steam huff and puff in heavy oil reservoirs. During the fire flooding process, determining the underground combustion temperature is helpful to understand the fire flooding combustion state (high-temperature combustion or low-temperature combustion), and timely adjust and control production...
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 Applications(China)
IPC IPC(8): G01N23/20G01N23/2206G01N23/2251G01N25/22
CPCG01N23/20G01N23/2206G01N23/2251G01N25/22Y02A10/40
Inventor 张方礼于天忠户昶昊史海涛姚睿杨新标郭子楠夏波张鲁庭雷霄雨张潇月柴标何彬彬崔丽静王熙琼
Owner PETROCHINA CO LTD