A high-precision compression method for electromagnetic wave forward modeling simulation database while drilling
A compression method and database technology, applied in the fields of electrical digital data processing, design optimization/simulation, special data processing applications, etc., can solve the problems that cannot fully cover all geological models, and the number of models in the forward simulation database is limited, so as to reduce the database effect of size
Active Publication Date: 2018-10-02
BC P INC CHINA NAT PETROLEUM CORP +2
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At the same time, using continuous surfaces instead of discrete point sources can solve the problem that the number of models in the forward simulation database is limited and cannot fully cover all geological models
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
[0044] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.
[0045] Such as figure 1 As shown, it is a flowchart of a specific embodiment of the high-precision compression method for the electromagnetic wave forward modeling simulation database while drilling according to the present invention.
[0046] Step 1 Establishing a model library: Combining with the characteristics of targeted oilfield blocks, determine the dimension of formation model parameters, change the multidimensional model parameters in different dimensions, and establish a complete forward modeling simulation model library. The specific steps are as follows:
[0047] Step 11, for the block applied by the forward simulation database, collect the geological parameters of the...
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 discloses a high-precision compression method for an electromagnetic-wave-while-drilling forward simulation database. The method includes the steps that 1, a complete model base is established; 2, an instrument-logging-while-drilling response database corresponding to the model database is established; 3, an optimal dimension combination is selected for surface fitting; 4, with otherdimension parameters unchanged, on the basis of the optimal surface dimension selected in step 3, a functional relationship is used for replacing logging response, and a mathematical expression of the functional relationship is output; 5, the mathematical expression in step 4 is stored according to a specific sequence, the logging response database in step 2 is converted into a mathematical relationship database, and binary compression is conducted on the new database; 6, instrument-logging-while-drilling response is calculated and restored. According to the method, the logging-while-drillingresponse of a multi-dimensional complex geological model is simulated, surface fitting is conducted on the obtained forward simulation database, and the relationship between the logging effect and model parameters is expressed by a surface equation, so that the data storage amount is greatly reduced, and the data compression effect is achieved.
Description
technical field [0001] The invention relates to the technical field of oil field development, in particular to a high-precision compression technology for a forward simulation database of electromagnetic waves while drilling. Background technique [0002] With the widespread application of horizontal well and highly deviated well drilling technology, the application of wireline logging is subject to certain restrictions, and logging data acquisition is widely used in the form of measurement while drilling. Due to the short drilling time of resistivity while drilling, the measurement point is less affected by mud invasion, and it can provide logging curves at different detection depths. Resistivity data while drilling can reflect the real parameters of the formation, so logging while drilling tools have broad application prospects. With the continuous deepening of exploration and development of complex oil and gas fields, the wide application of highly deviated wells, horizo...
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): G06F17/50E21B47/13
CPCE21B47/13G06F30/20G06F2111/10
Inventor 刘乃震伍东傅少庆郭玉庆樊春华刘越
Owner BC P INC CHINA NAT PETROLEUM CORP