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Glutenite irreducible water saturation calculation method based on conventional logging information

A technology of conventional logging data and calculation methods, applied in the field of sandy conglomerate oil and gas reservoir formation logging evaluation, can solve the problems that the calculation methods do not have generalization and versatility, and achieve strong versatility, wide applicability, and high calculation accuracy Effect

Pending Publication Date: 2021-05-11
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology

[0004] The purpose of the present invention is to provide a calculation method of glutenite irreducible water saturation based on conventional logging data in view of the problems existing in the prior art, to solve the problem that the calculation method of glutenite reservoir irreducible water saturation does not have generalizability and generality problem

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  • Glutenite irreducible water saturation calculation method based on conventional logging information
  • Glutenite irreducible water saturation calculation method based on conventional logging information
  • Glutenite irreducible water saturation calculation method based on conventional logging information

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Embodiment Construction

[0036] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0037] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a glutenite irreducible water saturation calculation method based on conventional logging information, and belongs to the technical field of glutenite oil and gas reservoir stratum logging evaluation. The method comprises the following steps: determining shale content, porosity and irreducible water saturation of a rock core sample; analyzing the response characteristics of a core sample on a conventional logging curve through core analysis porosity scale depth homing, determining a shale content sensitive curve of the core sample, and determining an irreducible water saturation sensitive curve of the core sample by utilizing the correlation between irreducible water saturation and shale content; establishing a rock core sample lithologic porosity model by using the rock core analysis porosity; constructing a saturation strength index formula of the rock core sample according to the relation between the resistivity and the saturation and between the porosity and the saturation; utilizing the shale content sensitive curve to construct a shale content strength formula; and 4) constructing a rock core sample irreducible water saturation calculation formula according to the lithologic porosity model, the saturation strength index formula and the shale content strength formula. The calculation method corresponding to the formula has generalization and universality.

Description

technical field [0001] The invention belongs to the technical field of sandy conglomerate oil and gas reservoir formation logging evaluation technology, and relates to a calculation method for glutenite irreducible water saturation based on conventional well logging data. Background technique [0002] In glutenite oil and gas exploration, an important parameter for judging the properties of logging fluid is the quantitative calculation of irreducible water saturation. The calculation of irreducible water saturation is an important part of the identification of glutenite fluid properties, one of the important parameters in the calculation of reserves by the volume method, and a key parameter in the calculation of oil-water relative permeability and water production rate. Therefore, accurate calculation of irreducible water saturation is particularly important in sandy conglomerate logging evaluation. [0003] With the continuous deepening of oil and gas exploration, complex ...

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Application Information

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IPC IPC(8): G06F30/20G06F17/11E21B49/00
CPCG06F30/20G06F17/11E21B49/00
Inventor 高衍武蔺敬旗赵延静张文静邵广辉曹志峰吴伟肖华王先虎柴新辉杨帆程亮毛晨飞
Owner BC P INC CHINA NAT PETROLEUM CORP
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