Geological Information Analysis of Horizontal Wells and 3D Modeling of Shale Gas Reservoir

doi:10.11885/j.issn.1674-5086.2017.05.10.04

Abstract

Abstract: Shale gas exploration is characterized by short evaluation periods and few evaluation (vertical) wells. The low density of vertical wells for evaluation aggravates technical difficulties in detailed reservoir description and geological modeling. Therefore, this study established a quantitative identification standard for the lithological, physical, and electrical properties of the study area. This standard was used to carry out fine stratigraphic division of horizontal wells and sections, as well as performing stratum thickness corrections during actual drilling, to transform horizontal wells and sections into vertical wells with multiple laterally arranged openings. On this basis, data extracted from each layer of the horizontal section were used as control points to establish a detailed structural model of the study area. In the multiple-point geological information analysis, horizontal sections were considered multiple-opening evaluation wells to obtain relevant geological parameters, effectively compensating for the lack of data in evaluation wells.

Key words: high-quality shale, multiple-point geological information analysis, 3D geological modeling, Longmaxi Formation, Weiyuan Block

CLC Number:

TE122

QIAO Hui, JIA Ailin, WEI Yunsheng. Geological Information Analysis of Horizontal Wells and 3D Modeling of Shale Gas Reservoir[J]. 西南石油大学学报(自然科学版), 2018, 40(1): 78-88.

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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.11885/j.issn.1674-5086.2017.05.10.04

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