A method, device and system for determining the distribution of fracture-porous tight sandstone reservoirs
A technology for tight sandstone reservoirs and pores, applied in the direction of material inspection products, soil material testing, etc., can solve problems such as deviation and inability to accurately reflect the diagenetic sequence of reservoirs, so as to avoid one-sidedness, reduce multi-interpretation of experimental results, and improve accuracy sexual effect
Active Publication Date: 2021-09-28
PETROCHINA CO LTD
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Problems solved by technology
However, reservoir diagenetic evolution and fracture formation are often studied separately, which cannot accurately reflect the complete diagenetic sequence of the reservoir, and ignores that the formation of high-quality reservoirs is the result of the dual effects of rock fabrics and fractures, which leads to reservoir prediction results that are different from actual ones. Geological features are deviated
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[0096] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in one or more embodiments of this specification will be clearly and completely described below in conjunction with the drawings in one or more embodiments of this specification Obviously, the described embodiments are only some of the embodiments in the description, not all of them. Based on one or more embodiments in the description, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the embodiments of the description.
[0097] Fracture-porous tight sandstone reservoirs are widely distributed in the deep parts of oil and gas-bearing basins in my country, with huge resource potential, and have become an important area for oil and gas exploration and reserve increase in recent years. This type of reservoir has experienced complex diagenesis and...
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Abstract
The embodiment of this specification discloses a method, device and system for determining the distribution of fracture-porous tight sandstone reservoirs. The method includes determining the reservoir performance, diagenesis and Fracture characteristics; construct the reservoir diagenetic evolution sequence of the target work area according to the reservoir performance, diagenesis and fracture characteristics; determine the reservoir diagenetic evolution sequence of the target work area according to the analysis results of the reservoir diagenetic evolution sequence and the main controlling factors of the reservoir layer distribution. By using the embodiments of this specification, the accuracy of determining the reservoir diagenetic sequence can be improved, and then the accuracy of determining the distribution area of favorable reservoirs can be improved.
Description
technical field [0001] The invention relates to the technical field of petroleum and natural gas exploration and development, in particular to a method, device and system for determining the distribution of fractured and porous tight sandstone reservoirs. Background technique [0002] Fracture-porous tight sandstone reservoirs are widely distributed in the deep parts of oil and gas-bearing basins in my country, with huge resource potential, and have become an important area for oil and gas exploration and reserve increase in recent years. This type of reservoir has experienced complex diagenesis and structural transformation in the long geological history period, and usually has the characteristics of large burial depth, high diagenetic intensity, poor matrix physical properties, and relatively developed fractures, which pose a great challenge to the prediction of high-quality reservoirs. difficulty. Therefore, starting from the rock ore composition and fracture characteris...
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IPC IPC(8): G01N33/24
Inventor 曾庆鲁张荣虎王俊鹏赵继龙王珂刘春王波王力宝杨钊陈希光张惠良宋兵李娴静
Owner PETROCHINA CO LTD