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Methods and systems regarding models of underground formations

A technology of underground rock formations and models, applied in seismology, 3D modeling, geophysical measurement, etc., can solve time-consuming and complex problems

Inactive Publication Date: 2013-11-20
LANDMARK GRAPHICS
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Problems solved by technology

[0004] However, creating a model such that the model accurately reflects subsurface formations can be a very time-consuming and complex task

Method used

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  • Methods and systems regarding models of underground formations
  • Methods and systems regarding models of underground formations
  • Methods and systems regarding models of underground formations

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Embodiment Construction

[0016] Symbols and Terminology

[0017] Certain terms are used in the following description and claims to refer to particular components. Those skilled in the art will understand that different groups may use different names to refer to a certain component. This document does not intend to distinguish between components that differ in name but not function.

[0018] In the following discussion and claims, the words "comprises" and "comprises" are used in an open-ended fashion and, therefore, should be understood to mean "including, but not limited to...." Moreover, the words "coupled ” or “connection” is intended to mean either an indirect connection or a direct connection. Thus, if a first device couples to a second device, that connection may be through a direct connection or through an indirect connection via other devices and connections.

[0019] "Creating a model" for a subsurface formation should include not only the initial creation of the model, but also based on a...

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Abstract

Models of underground formations. At least some of the illustrative embodiments are methods including creating a model of an underground formation. The creating may include: calculating a set of probabilities associated with a first horizontal location, each probability indicative of a likelihood of finding abutting geological layers; estimating a plurality of successions of geological layers to create a plurality of estimated successions, and the estimating using the set of probabilities; determining, for each of the estimated succession, a value indicative of how closely each estimated succession matches a measured succession, the measured succession determined by a seismic survey; and selecting from the plurality of estimated successions based on the values, the selecting creates a selected succession of geological layers, and the plurality of modeled values associated with the first horizontal location determined based on the selected succession of geological layers.

Description

[0001] Cross References to Related Applications [0002] none. Background technique [0003] In order to optimize the drilling arrangement and extraction of hydrocarbons from the subterranean formation, a model of the formation may be created. Using this model, many simulations can be performed with varying parameters such as injection well placement, extraction well placement, and type and volume of secondary recovered liquid. [0004] However, creating a model such that the model accurately reflects subsurface formations can be a very time-consuming and complex task. The model may first be created using data obtained from a seismic survey and one or more exploratory boreholes. The model may need to be updated when additional boreholes are drilled or when further seismic surveys are performed (eg, time-lapse (4D) seismic). Therefore, any progress that reduces the time to create a model or helps the model more accurately reflect subsurface formations will provide a competit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/05G01V1/00
CPCG06F17/5009G06T17/05G01V1/301G01V2210/614G01V2210/66G06F30/20
Inventor 杰弗里·M·雅路斯马克·马奥斯理查德·L·钱伯斯
Owner LANDMARK GRAPHICS
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