Igneous rock oil and gas exploration method and device

An igneous rock, oil and gas technology, applied in the field of oil and gas reservoir exploration, can solve the problems of lower exploration success rate, large difference, failure to analyze and predict reservoir conditions, etc., and achieve the effect of improving accuracy and drilling success rate

Active Publication Date: 2013-06-12
PETROCHINA CO LTD
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Problems solved by technology

[0009] Based on the above differences, it is determined that the existing conventional clastic rock reservoir exploration technology cannot analyze and predict the reservoir conditions well when the existing conventional clastic rock reservoir exploration technology is actually applied in

Method used

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  • Igneous rock oil and gas exploration method and device
  • Igneous rock oil and gas exploration method and device
  • Igneous rock oil and gas exploration method and device

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Embodiment 1

[0036] An embodiment of the present invention provides an oil and gas exploration method for igneous rocks, such as figure 1 As shown, the steps of the method include:

[0037] Step 101: Generate crater location and igneous rock lithofacies information according to the location and characteristic information of the igneous rock reservoir.

[0038] Specifically, it is based on the "shape, volume, and structure" research method of igneous rocks, that is, through three-dimensional data volume visualization technology, flattening of paleoplaning planes, time (or depth) slicing along layers, etc., combined with the location of igneous rock reservoirs revealed by drilling. The location and characteristic information of the volcanic crater and the lithofacies information of the igneous rocks are determined. Among them, the location and characteristic information of igneous rock reservoirs include: paleomagnetism, igneous rock thickness, and the size and structure of volcanic breccia...

Embodiment 2

[0070] The embodiment of the present invention also provides an igneous rock oil and gas exploration device, such as Figure 7 As shown, the igneous rock oil and gas exploration device 1 includes:

[0071] The igneous rock facies and location generation unit 2 is used to generate the crater location and igneous rock lithofacies information according to the location and characteristic information of igneous rock reservoirs; specifically, it is based on the research method of "shape, body, and structure" of igneous rocks: that is, through three-dimensional data Volume visualization technology, flattening of paleoplaning planes, time (or depth) slicing along layers, and other methods, combined with the location and characteristic information of igneous rock reservoirs revealed by drilling, determine the location of craters and lithofacies information of igneous rocks. Among them, the location and characteristic information of igneous rock reservoirs include: paleomagnetism, thick...

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Abstract

The invention provides an igneous rock oil and gas exploration method and an igneous rock oil and gas exploration device. The method comprises the following steps of generating crater position and igneous rock lithofacies information according to the position of an igneous rock reservoir and characteristic information; generating geophysical reflection characteristic data according to seismic facies analysis, and determining a distribution range of advantageous lithofacies; calculating a stratigraphic strike-slip distance of a deep igneous rock mechanism according to a matching relation of target stratum lithofacies of a volcanic edifice on two sides of a fracture and a corresponding relation of igneous rocks of a middle-shallow layer on the two sides of the fracture; analyzing logging response data of the igneous rocks, and generating advantageous lithology distribution information and thickness data of the deep igneous rock mechanism through natural gamma seismic inversion; acquiring a development part of the fracture of the igneous rock reservoir by using means such as deep and shallow resistivity difference inversion; and generating igneous rock oil and gas reservoir information in the development part through cluster analysis of seismic attributes and two-phase media-based oil and gas detection. By the invention, the accuracy of exploring and predicting the igneous rock oil and gas reservoir and the drilling success rate can be improved.

Description

technical field [0001] The invention relates to the technical field of oil and gas reservoir exploration, in particular to an oil and gas exploration method and device for igneous rocks. Background technique [0002] During the "Eleventh Five-Year Plan" and "Twelfth Five-Year Plan", igneous rock reservoirs have become one of the important fields of oil and gas exploration. However, the existing seismic technology for igneous rock exploration is limited to the application of conventional clastic rock reservoir exploration technology to igneous rock exploration. At present, there is no perfect exploration technology for oil and gas exploration of igneous rocks, especially no exploration and prediction technology developed for the characteristics of igneous rock reservoirs using 3D seismic data covering rich underground geological information. The application of conventional clastic rock reservoir exploration technology to igneous rock exploration does not have a good effect o...

Claims

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Application Information

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IPC IPC(8): G01V1/28G01V1/30
Inventor 蔡国钢徐丽英马志宏方炳钟杨光达张瑞斌肖红平韩宏伟解宝国
Owner PETROCHINA CO LTD
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