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Glutenite mass fan-to-fan identification method

An identification method, a technology of inter-fans, which is applied in the field of identification of inter-fans of glutenite bodies, and can solve problems such as failure

Pending Publication Date: 2022-01-11
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, some failed wells also appeared during the exploration process. After analysis, it was found that the reason for the failure was that the low part of the side edge of the main fan was drilled, and the truly independent interfan fan was not drilled, resulting in the failure.

Method used

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Embodiment Construction

[0026] In order to make the above and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments are listed below and shown in the accompanying drawings in detail as follows.

[0027] Such as figure 1 as shown, figure 1 It is a flow chart of the method for identifying interfans of glutenite bodies in the present invention.

[0028] Step 101, using seismic data to carry out paleogeomorphological analysis, to determine the development position of the interfan fan plane of the glutenite body.

[0029] Firstly, the isochronous stratigraphic framework is established by using real drilling and 3D seismic data, and then the paleogeomorphology is finely restored by using the isochronous sequence thickness comparison method to restore the paleogeomorphology, and comprehensively analyze the development characteristics of glutenite fans in the study area. The principle clarifies the development position of the interfan fan of the glut...

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Abstract

The invention provides a glutenite mass fan-to-fan identification method, which comprises the following steps: step 1, carrying out ancient landform restoration by utilizing seismic data, and determining a plane position of fan-to-fan development; step 2, carrying out petrology characteristic research on well logging and logging information of the fan-to-fan actual drilling well, and determining lithofacies characteristics of the fan-to-fan; step 3, carrying out research on the logging response characteristics of the fan-to-fan real drilling well, and determining the logging facies characteristics of the fan-to-fan; step 4, carrying out sandy conglomerate fan-to-fan sedimentary mode research based on geological research and seismic reflection characteristic research, and establishing a fan-to-fan sedimentary model; step 5, performing forward modeling seismic record characteristic simulation on the fan-to-fan sedimentary model to obtain seismic reflection characteristics of the fan-to-fan of the glutenite body; and step 6, comprehensively establishing a seismic geology identification quantity version of the sectors between the sectors of the glutenite mass. The method for identifying the sectors between the glutenite sectors is a simple and easy identification method for identifying the sectors between the glutenite sectors.

Description

technical field [0001] The invention relates to the field of oilfield exploration and development, in particular to a method for identifying interfans of glutenite bodies. Background technique [0002] In the steep slope of Dongying Sag in Jiyang Depression, various types of glutenite fan deposits have been formed under the complex structural background. They have different lithology, electrical properties and seismic identification characteristics, and there are regular combinations, Superposition and distribution constitute the main types of reservoirs in the steep slope zone. The north side of the lake basin is a high bulge, which provides sufficient sources for the inner descending plate. With the continuous progress of basin rifting and block rifting, mountain rivers carry a large amount of terrigenous clastics into lake basins through cliffs, and quickly unload them. , and its combination characteristics are different with the difference in the subsidence pattern of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V11/00
CPCG01V11/00
Inventor 娄凤芹于景强韩宏伟高平亓亮曹丽萍李姝丽刘鸽
Owner CHINA PETROLEUM & CHEM CORP
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