Total Organic Carbon Predictions from Lower Barnett Shale Well-log Data Applying an Optimized Data Matching Algorithm at Various Sampling Densities

2020 ◽  
Vol 177 (11) ◽  
pp. 5451-5468
Author(s):  
David A. Wood
Keyword(s):  
Organic Carbon ◽  
Total Organic Carbon ◽  
Barnett Shale ◽  
Well Log ◽  
Matching Algorithm ◽  
Log Data ◽  
Data Matching

DETERMINATION FROM WELL LOGS OF THE TOTAL ORGANIC CARBON CONTENT IN POTENTIAL SOURCE ROCKS

1994 ◽  
Vol 34 (1) ◽  
pp. 307
Author(s):  
J.L. Lin ◽  
H.A. Salisch
Keyword(s):  
Organic Carbon ◽  
Total Organic Carbon ◽  
Source Rocks ◽  
Well Logs ◽  
Organic Carbon Content ◽  
Well Log ◽  
Single Model ◽  
Geochemical Properties ◽  
Comparison Of The Results ◽  
Immature Source Rock

This paper discusses, in some detail, the log responses to total organic carbon (TOC) in the Upper and Middle Velkerri Formation in an area of the McArthur Basin, Northern Territory, Australia. The Formation Density log was found to be superior to other standard well logs in assessing values of TOC in the area studied. A theoretical model was used to estimate TOC from the Formation Density log. The model was established and its applicability was verified by comparison with other models. Based on geochemical properties the Upper and Middle Velkerri Formation is classified into three categories: nonsource rocks, mature source rocks and immature source rock. They show significant differences in the well log responses, and different models had to be established for the three categories to determine the TOC content from well logs. Comparison of the results of using a different model for each category instead of a single model to cover the three categories shows that the former approach gives more meaningful answers.

scholarly journals Persebaran TOC dan Porositas Total Menggunakan Seismik Inversi pada Shale Piniya, Cekungan Akimeugah, Papua

2019 ◽  
Vol 23 (2) ◽  
pp. 24
Author(s):  
Janna Azizah Wijayanti ◽  
Jarot Setyowiyoto ◽  
Ferian Anggara
Keyword(s):  
Organic Carbon ◽  
Total Organic Carbon ◽  
Well Log ◽  
Model Based

Migas non-konvensional saat ini mulai menjadi sumber energi yang penting mengingat menurunnya sumber migas konvensional secara global. Salah satu jenis migas non konvensional adalah hidrokarbon shale. Eksplorasi hidrokarbon shale akan menjadi sukses apabila analisis data awal dilakukan dengan baik. Data well log dan data seismik biasanya merupakan data utama dalam fase eksplorasi. Analisis yang dilakukan adalah analisis porositas total dan Total Organic Carbon (TOC). Analisis estimasi TOC akan menggunakan pendekatan petrofisika yaitu dengan metode Passey (1990). Dalam tulisan ini, fokus pembahasan adalah pada shale formasi Piniya sebagai reservoir non-konvensional yang merupakan anggota dari Kelompok Kembelangan, Cekungan Akimeugah. Dalam membuat model persebaran porositas total dan TOC, akan digunakan metode seismik inversi berupa model based. Hubungan empiris antara Impedansi Akustik (AI) dan parameter porositas total serta TOC akan digunakan dalam melakukan persebaran parameter, yaitu dengan mengubah cube seismik AI menjadi cube seismik porositas total dan TOC.Kata kunci : porositas total, TOC, inversi, piniya, akimeugah.

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