A Method for Acquiring Underground Well Location Information of Complex Fault Block Reservoir Sand Body

Abstract

The invention relates to a method for obtaining complex fault block oil reservoir sand body underground well position information in the technical field of oil and gas field development. According to the method, an oil field development database is standardized and complemented, data are imaged, an oil field single well information graph mode is established, and finally all information on a single well depth-closed displacement diagram is preserved and used for subsequent fine oil reservoir description with a small layer or a sand body as a unit. According to the method, the sand body underground well position information can be quickly, effectively and accurately extracted, and a plane figure of the small layer or the sand body is formed, and reliability of extraction of the sand body underground well position information is guaranteed; and geological personnel can quickly and well finish the plane figure of the small layer or the sand body, the method has the characteristics of being few in working procedure and high in efficiency, the drawing compilation period is obviously shortened, drawings meeting different requirements can be flexibly generated, and fine oil reservoir description with the small layer or the sand body as the unit can be realized.

Description

technical field [0001] The invention relates to the technical field of oil and gas field development, in particular to a method for acquiring underground well location information. Background technique [0002] (1) Meaning of sandbody underground well location information [0003] The underground well position information of sand body is to characterize the plane projection position and related attribute characteristics of the well drilled to the underground sand body. Including underground well location coordinates of sand bodies encountered by well drilling, sand body top depth, bottom depth, thickness, effective thickness, electrical logging interpretation serial number, porosity, permeability, oil saturation, shale content, carbonate content, interlayer Thickness, interlayer frequency, interlayer density, etc. [0004] (2) Current status of oilfield development data management [0005] Oilfield development research on the development of reservoirs is usually managed a...

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Problems solved by technology

[0009] ④Sand body data table: Manage the sand body information of the target interval drilled by each well. At present, the sand body data table only explains the reservoir and puts it into the warehouse. There is no corresponding representation method;

[0023] The decentralized data management mode can manage the data management of the entire oilfield well, but its disadvantage is that it is difficult to manage different types of data of a certain well and the same attribute information at the same depth in one data table.

[0024] ③ There is no special research on the acquisition method of underground well location information for sand bodies in complex fault-block reservoirs

[0025] The current mainstream reservoir description software, including Petrel, Discovery, GPT, Resform, Shuanghu, etc., do not have technical methods designed specifically for complex fault-block reservoirs The subsurface location of the undrilled sand body and the incomplete or inaccurate representation of the well information directly lead to the description of the sand body in complex fault-block reservoirs breaking away from the constraints of complex geological conditions. The geological map drawn in this way is The geological meaning of complex fault blocks is lost

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