Diagenesis and diagenetic facies distribution prediction of Chang 8 tight oil reservoir in Maling area, Ordos Basin, NW China

Meng WANG; Shu LIU; Ming ZENG; Gang LIN; Yulin CHENG; Long FANG; Jiaming ZENG

Makale detayları

Diagenesis and diagenetic facies distribution prediction of Chang 8 tight oil reservoir in Maling area, Ordos Basin, NW China

Yazarlar:

Meng WANG | Shu LIU | Ming ZENG | Gang LIN | Yulin CHENG | Long FANG | Jiaming ZENG

Yayıncı:

TUBITAK

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Turkish Journal of Earth Sciences 2019 Vol.28 Issue 3, pp.457-469

Belge Tipi:

Makale

Yayın Tarihi:

5/2019

Belge Dili:

İngilizce

Document ID (Org No.):

2000731051

Sıklık:

İki Aylık

eISSN:

1303-619X

pISSN:

1300-0985

Özet:

 

In this study, characteristics of Chang 8 tight sandstone pore structure and diagenesis are analyzed. A classification standard for  sandstone  diagenetic  facies  is  established.  Combined  with  the  probabilistic  neural  network  method,  logging  curves  are  used  to  predict the distribution of diagenetic facies. The following results are found: the Chang 8 reservoir has low porosity-low permeability characteristics,  and  the  pore-throat  structures  have  strong  microscopic  heterogeneity;  both  compaction  and  siliceous  and  carbonate  cementation  promote  reservoir  densification;  chlorite  cement  lining,  hydrocarbon  emplacement,  and  the  dissolution  of  feldspar  and  rock  fragments  have  constructive  effects  on  reservoir  development;  and  two  favorable  diagenetic  facies,  a  weakly  compacted  and  chlorite-authigenic quartz cementation facies and an intensely compacted-dissolution facies, are developed in the middle of the thick sandstone and are a good match in their horizontal distribution with distributary channel sands. The Chang 81 member has a much larger area that is more favorable for the development of reservoir diagenetic facies than the Chang 82.

Makale detayları

Diagenesis and diagenetic facies distribution prediction of Chang 8 tight oil reservoir in Maling area, Ordos Basin, NW China

Yazarlar: Meng WANG | Shu LIU | Ming ZENG | Gang LIN | Yulin CHENG | Long FANG | Jiaming ZENG

Yayıncı: TUBITAK

Ana Başlıklar: Uygulamalı fizik

Dergi: Turkish Journal of Earth Sciences 2019 Vol.28 Issue 3, pp.457-469

Belge Tipi: Makale

Yayın Tarihi: 5/2019

Belge Dili: İngilizce

Document ID (Org No.): 2000731051

Sıklık: İki Aylık

eISSN: 1303-619X

pISSN: 1300-0985

Sayı

Yazarlar:

Meng WANG | Shu LIU | Ming ZENG | Gang LIN | Yulin CHENG | Long FANG | Jiaming ZENG

Yayıncı:

TUBITAK

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Turkish Journal of Earth Sciences 2019 Vol.28 Issue 3, pp.457-469

Belge Tipi:

Makale

Yayın Tarihi:

5/2019

Belge Dili:

İngilizce

Document ID (Org No.):

2000731051

Sıklık:

İki Aylık

eISSN:

1303-619X

pISSN:

1300-0985