A fine reservoir prediction method in oilfield development stage
A technology of oilfield development and prediction method, which is applied in the field of reservoir research in the oilfield development stage, can solve the problems of low accuracy, low accuracy and applicability, and cannot meet actual needs, and achieve high prediction accuracy and improve inversion resolution. Effect
A technology of oilfield development and prediction method, which is applied in the field of reservoir research in the oilfield development stage, can solve the problems of low accuracy, low accuracy and applicability, and cannot meet actual needs, and achieve high prediction accuracy and improve inversion resolution. Effect
CN105863628BActive Publication Date: 2019-02-26CHINA NAT OFFSHORE OIL CORP +1
Image
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
[0020] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0021] like figure 1 As shown, the present invention provides a fine reservoir prediction method in the oilfield development stage. The method adopts a two-step inversion method, that is, the conventional wave impedance inversion is performed first, and then the wave impedance data volume obtained by the inversion is used as a multi-attribute seismic inversion The external input attribute of the performance, specifically includes the following steps:
[0022] 1) Basic data collection, quality control and processing, focusing on the quality control of well logging curves: Aiming at the problem of single-well curve and multi-well consistency, the well-logging curves with problems are corrected by petrophysical methods.
[0023] like figure 2 As shown, the quality control of the distribution trend of the logging curves of multiple wells is carried out...
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 relates to a fine reservoir prediction method of an oilfield development phase. The fine reservoir prediction method comprises the steps of basic data collection, quality control and treatment: carrying out correction on problematic well log by adopting a rock physics method for the single well curve problem and the multi-well consistency problem; utilizing a rock physics analysis method to obtain well log parameters having discrimination on lithologic character, physical property or oil-gas possibility of reservoir, and determining target parameters of reservoir inversion; carrying out fine well-seism calibration to obtain an accurate time-depth relationship; adopting a routine wave impedance inversion method to obtain wave impedance data volumes as external attribute input of multiattribute inversion; for the characteristics of a multiattribute inversion method, filtering high and low frequency information of the well log by adopting a band-pass filtering means, namely, carrying out frequency matching of well-seism data; and taking the obtained wave inversion data volumes as the external attribute input and adopting the multiattribute inversion method to obtain a final inversion result. According to the fine reservoir prediction method of an oilfield development phase, the prediction precision can be effectively improved; the applicable range is wider, and the requirement of the oilfield development phase for reservoir prediction precision can be met.
Description
technical field [0001] The invention relates to the field of reservoir research in the oilfield development stage, in particular to a two-step inversion-based reservoir fine prediction method in the oilfield development stage. Background technique [0002] In the stage of oilfield development, the requirements for reservoir description accuracy are obviously improved, and higher requirements are put forward for seismic technology. Development seismic technology is an extension of exploration seismic technology to the stage of oil and gas field development. It directly meets the needs of oil and gas reservoir development and production. It is dominated by seismic technology, making full use of the advantages of spatially dense sampling of seismic data, and integrating logging, geology, and reservoir engineering. Multi-disciplinary information to achieve fine description and dynamic monitoring of oil and gas reservoir characteristics. [0003] Seismic technology in the develo...
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
26 Feb 2019
Publication
CN105863628B
- IPC
- E21B49/08
- CPC
- E21B49/087
- Inventors
- 胡光义; 范廷恩