Method and device for determining remaining oil quantity
A technology of remaining oil volume and pore throat, applied in the field of determination of remaining oil volume, can solve the problems of high implementation cost, inability to accurately and quickly determine microscopic remaining oil distribution, etc.
Active Publication Date: 2021-01-01
PETROCHINA CO LTD
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The embodiment of the present application provides a method and device for determining the amount of remaining oil to solve the technical problems of high implementation cost and inability to accurately and quickly determine the distribution of microscopic remaining oil in the existing method, so as to achieve efficient and precise The technical effect of accurately determining the specific remaining oil volume in different pore structure types
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
[0058] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0059] Considering the existing methods, most of them use the stochastic network model to simulate the displacement process of reservoir exploitation. During the simulation process, by setting and changing the size and distribution of pores and throats in the model, adjusting the pore wetting ratio in the model, etc. parameters, simulate ...
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
An embodiment of the application provides a remaining oil determining method and device, wherein the method comprises: acquiring a core sample and target data of a target area; dividing a single wellof the target area into multiple pore throat structural type areas, and acquiring multiple pore throat structural type samples from the multiple pore throat structural type areas; subjecting the multiple pore throat structural type samples to flooding experiment, and determining remaining oil distribution characteristics of the multiple pore throat structural type areas in the single well of the target area. The single well of the target area is divided into the multiple pore throat structural type areas first; oil-water motion mechanism under the control of the different pore throat structural types is considered; remaining oil in the different pore throat structural type areas in the single well is determined according to the specific pore throat structural type samples; therefore, the technical problem is solved that existing methods have high implementing cost and are unable to accurately and quickly determine microscopic remaining oil distribution.
Description
technical field [0001] The present application relates to the technical field of oil reservoir exploitation, in particular to a method and device for determining remaining oil volume. Background technique [0002] In the process of oil and gas reservoirs, especially when the reservoirs are exploited in coastal sandstone areas, a large amount of microscopic remaining oil will remain in the oil layers in the target area after a period of time of exploitation by water flooding. How to determine the amount of remaining oil mentioned above affects how to efficiently and completely collect the remaining oil in the target area in the subsequent secondary recovery. [0003] At present, in order to determine the remaining oil in the target area, most of the random network models are used to simulate the displacement process of reservoir exploitation. During the simulation process, the size and distribution of pores and throats in the model are artificially set and changed, and the 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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 余义常徐怀民高兴军王超孙廷彬杨乐朋宁超众宋本彪
Owner PETROCHINA CO LTD