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Reservoir stratum oil-gas-bearing possibility logging interpretation method and device

A reservoir and oil-gas technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problem of low coincidence rate of mud logging interpretation, inability to accurately evaluate reservoir fluid properties, and insufficient consideration of reaction reservoirs. Set layer physical parameters and other issues to achieve the effect of improving the coincidence rate

Active Publication Date: 2019-07-16
中石化石油工程技术服务有限公司 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the existing mud logging interpretation methods often have the following problems in the process of use: the parameters reflecting the physical properties of the reservoir are not fully considered, and the fluid properties of the reservoir cannot be accurately evaluated; When evaluating the reliability, only the hydrocarbon component parameters of the gas logging are considered, and the qualitative identification of the curve shape is not considered for quantitative consideration, which will result in a low coincidence rate of mud logging interpretation

Method used

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  • Reservoir stratum oil-gas-bearing possibility logging interpretation method and device
  • Reservoir stratum oil-gas-bearing possibility logging interpretation method and device
  • Reservoir stratum oil-gas-bearing possibility logging interpretation method and device

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Embodiment 1

[0051] see figure 1 It is a schematic flow chart of a reservoir oil and gas-bearing mud logging interpretation method provided by Embodiment 1 of the present invention. The method includes the following steps:

[0052] S11, establishing a mud logging interpretation database;

[0053] It should be noted that the mud logging interpretation database is the basis for characterizing reservoir fluid properties through parameter reconstruction. By collecting gas logging data, engineering parameter logging data and oil testing data, the oil testing data is used to characterize the production layer, and the mud logging interpretation database is created based on the oil testing conclusion.

[0054] S12. Extract effective parameters from the mud logging interpretation database, and perform parameter reconstruction through the effective parameters to obtain the reservoir gas logging surface oil and gas index and the reservoir engineering parameter mud logging physical property index;

[...

Embodiment 2

[0060] Referring to embodiment one of the present invention and figure 1 For the specific process of steps S11 to S13 described in , see figure 2 Corresponding to the second embodiment of the present invention figure 1 The schematic flow chart of the method for establishing the mud logging interpretation database in step S11 shown, specifically includes:

[0061] S111. Collect logging data, engineering parameter logging data and oil testing data;

[0062] S112. Qualifying the production layer according to the oil testing data, and obtaining an oil testing conclusion;

[0063] S113. Establish a mud logging interpretation database according to the oil test conclusion, the mud logging data and the engineering parameter mud logging data.

[0064] and see image 3 Corresponding to the second embodiment of the present invention figure 1 A schematic flow diagram of the parameter reconstruction method in step S12 shown, specifically including:

[0065] S121. Effective parameter...

Embodiment 3

[0086] Corresponding to the oil-gas-bearing mud logging interpretation method disclosed in the first and second embodiments of the present invention, the third embodiment of the present invention also provides a oil-gas-bearing mud logging interpretation device, see Figure 5 It is a schematic structural diagram of a oil and gas reservoir logging interpretation device provided in Embodiment 3 of the present invention, and the device includes:

[0087] Establish module 1, which is used to establish the mud logging interpretation database;

[0088] The parameter reconstruction module 2 is used to extract effective parameters from the mud logging interpretation database, and perform parameter reconstruction through the effective parameters to obtain reservoir gas logging surface oil and gas index and reservoir engineering Parameter logging physical index;

[0089] The chart building module 3 is used to intersect the reservoir gas logging surface oil and gas index and the reservo...

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Abstract

The invention discloses a reservoir stratum oil-gas-bearing possibility logging interpretation method and device. The method comprises: establishing a logging interpretation database; extracting effective parameters from the logging interpretation database, and carrying out parameter reconstruction through the effective parameters to obtain a reservoir stratum gas logging ground oil-gas-bearing possibility index and a reservoir stratum engineering parameter logging property index; and carrying out intersection of the reservoir stratum gas logging ground oil-gas possibility index and the reservoir stratum engineering parameter logging physical property index, and establishing a logging interpretation chart. According to the invention, the purpose of improving the logging interpretation coincidence rate is achieved.

Description

technical field [0001] The invention relates to the technical field of petroleum and natural gas exploration and development, in particular to a method and device for reservoir oil and gas-bearing mud logging interpretation. Background technique [0002] In the technical field of petroleum exploration and development, gas logging data is usually used to judge the properties of reservoir fluids. The existing discrimination methods are the cross-plot method of the total hydrocarbon value, the curve shape method and the traditional gas measurement interpretation method based on the gas measurement component ratio. [0003] Long-term production practice shows that two factors need to be considered in the characterization of reservoir fluid properties, one is oil and gas, and the other is physical properties. Therefore, the existing mud logging interpretation methods often have the following problems in the process of use: the parameters reflecting the physical properties of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/21G06F17/24G06Q50/02
CPCG06Q50/02G06F40/18G06F16/21
Inventor 郑玉朝李江陵张德安李美君卢海丽崔玉英
Owner 中石化石油工程技术服务有限公司
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