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Experimental method for evaluating oiliness of unconventionally-compacted shale reservoir stratums

An experimental method and shale technology, which are used in the oil-bearing evaluation experiment of unconventional tight and shale reservoirs, and the field of oil-bearing evaluation of unconventional oil and gas reservoirs

Active Publication Date: 2014-03-12
PETROCHINA CO LTD +1
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of evaluating the oiliness of unconventional oil and gas reservoirs, and provide an experimental method for evaluating the oiliness of unconventional tight and shale reservoirs

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  • Experimental method for evaluating oiliness of unconventionally-compacted shale reservoir stratums
  • Experimental method for evaluating oiliness of unconventionally-compacted shale reservoir stratums

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Embodiment Construction

[0033] The present invention mainly proposes an experimental method for evaluating the oiliness of unconventional tight and muddy shale reservoirs, which mainly utilizes the experimental analysis method for cores of unconventional tight and muddy shale reservoirs to analyze Micro-level oil-bearing detection, to achieve the purpose of oil-bearing evaluation of unconventional reservoirs, to meet the needs of unconventional oil and gas exploration and development for geological experiment technology. The core experiment analysis method of the present invention for unconventional tight and mud shale reservoirs includes rock pyrolysis analysis to obtain S1, S2 and other indicators, closed coring saturation and nuclear magnetic resonance analysis to obtain rock water content and oil saturation and other indicators, fluorescent thin slices Analytical methods to obtain oil fluorescence images, oil content and other indicators, laser confocal to obtain two-dimensional images, three-dime...

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Abstract

The invention discloses an experimental method for evaluating the oiliness of unconventionally-compacted shale reservoir stratums. According to the method, a closed coring saturation degree and fluorescent lamina technology can be used for effectively evaluating the oiliness of silty mudstones and siltstones; rock pyrolysis, laser co-focusing, a scanning electron microscope and an energy spectrum can be used for effectively evaluating the oiliness of the mudstones and the siltstones; technical indexes are matched with comprehensive application, mutual verification and mutual supplementation to effectively evaluate the microcosmic oiliness of the compacted and shale reservoir stratums. According to the experimental method, the method verification is carried out by taking a Qp1 well of an unconventional oil and gas exploratory well in the Daqing exploratory area as an example to, and new awareness can be obtained. The experimental method for evaluating the oiliness of the unconventionally-compacted shale reservoir stratums provides an experimental technology support to the seven-property evaluation of the oiliness of the unconventionally-compacted shale reservoir stratums and the exploration and development of unconventional oil and gas.

Description

technical field [0001] The invention relates to a method for evaluating the oiliness of unconventional oil and gas reservoirs, in particular to an experimental method for evaluating the oiliness of unconventional tight and shale reservoirs, and belongs to the field of unconventional oil and gas exploration and development. Background technique [0002] In recent years, unconventional oil and gas resources such as tight oil and gas, shale gas, heavy oil and oil sands have been developed on a large scale, pushing the global oil industry into a new stage where both conventional and unconventional oil and gas resources are equally important. my country's tight oil and gas has made significant progress, and the Ordos In the Sulige tight gas area in the Basin, the Gaotaizi and Fuyang oil layer tight oil areas in the northern Songliao Basin, tight oil and gas have become the most realistic unconventional oil and gas resources and are expected to become important replacement resources...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24
Inventor 张居和冯子辉方伟霍秋立王淑芝孙先达张博为李景坤张学军
Owner PETROCHINA CO LTD
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