Calibrating seismic fracture prediction using borehole image logs, application to the Mississippian limestone

Cook, Stephanie; Alali, Abdulmohsen; Marfurt, Kurt J.; Pranter, Matthew J.

doi:10.1190/segam2016-13970405.1

Cited by 3 publications

(1 citation statement)

References 9 publications

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“…Klein (Klein et al 2008) used a similar method to the coherent algorithm with inclination control to calculate the curvature properties. Cook (2016) evaluated Mississippi limestone fractures by correlating volume attributes calculated from surface seismic data with image logs running in six horizontal wells. Pollock (Pollock et al 2018) proposed a fracture prediction method using common data combined with commercial software and evaluated the fractures of Wolfcamp and Spraberry unconventional reservoirs.…”

Section: Introductionmentioning

confidence: 99%

Multi-scale fracture prediction and characterization method of a fractured carbonate reservoir

Zhang¹,

et al. 2020

J Petrol Explor Prod Technol

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The WZ oilfield is characterized by a small production range, low recovery degree, strong reservoir heterogeneity, and complex fracture distribution. At present, there is no quantitative evaluation method for fractures of different scales. This causes problems that include an unclear understanding of reservoirs’ physical properties and remaining oil distribution and seepage characteristics. In this paper, multi-scale fracture prediction and a quantitative characterization method of a fractured carbonate reservoir are studied using three-dimensional seismic imaging logging and regional tectonic stress field distribution data. On the basis of analogs, variance cube, curvature, and the Pompano through-flowline system, large-scale crack recognition is carried out. Combined with the maximum positive curvature attribute, fracture density, and fracture direction interpreted by imaging logging, a small- and medium-sized fracture model is established. Finally, the multi-scale fracture prediction is carried out. This study has important theoretical significance for accurately describing and characterizing the multi-scale fracture distribution law and guiding the fine development of oilfields.

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Section: Introductionmentioning

confidence: 99%

Multi-scale fracture prediction and characterization method of a fractured carbonate reservoir

Zhang¹,

et al. 2020

J Petrol Explor Prod Technol

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Calibrating volumetric aberrancy fracture prediction using borehole image logs and mud logs, application to the Mississippian limestone

Xuan

Marfurt

Pranter

et al. 2017

SEG Technical Program Expanded Abstracts 2017

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Aberrancy measures the lateral change (or gradient) of curvature along a picked or inferred surface. Aberrancy is complementary to curvature and coherence. In normally faulted terrains, the aberrancy anomaly will track the coherence anomaly and fall between the most-negative curvature anomalies defining the footwall and the mostnegative curvature anomalies defining the hanging wall. Aberrancy can delineate faults whose throw falls below seismic resolution, or is distributed across a suite of smaller conjugate faults, which do not exhibit a coherence anomaly. For this reason, we hypothesize that aberrancy will be quite useful in correlating surface seismic data to fractures associated with faults that are commonly seen in image logs from horizontal wells. This study explores if a correlation can be found between aberrancy and fracture measured using image logs. If such a correlation exists, we will be able to use volumetric aberrancy as a statistically validated proxy to predict fractures in undrilled parts of the survy. The seismic survey of this study is located in the Anadarko Shelf of Northern Oklahoma. Aberrancy and other seismic attributes that may be indirectly related to the depositional and tectonic history are extracted along the wellbores in the depth domain. Seismic estimates of mechanical parameters are derived from seismic inversion. We will show the results of several correlation techniques such as lasso regression.

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Interpretation II Complete Session

2017

SEG Technical Program Expanded Abstracts 2017

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Calibrating seismic fracture prediction using borehole image logs, application to the Mississippian limestone

Abstract: DedicationI dedicate this thesis to my husband and very best friend, Bradley Cook, who has been a constant source of love, support, and encouragement throughout the pursuit of my Master's degree and always.iv

Cited by 3 publications

References 9 publications

Multi-scale fracture prediction and characterization method of a fractured carbonate reservoir

Multi-scale fracture prediction and characterization method of a fractured carbonate reservoir

Calibrating volumetric aberrancy fracture prediction using borehole image logs and mud logs, application to the Mississippian limestone

Interpretation II Complete Session

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