Study and Evaluation of Fault Sealing in Yancheng Sag

Xinjiang Petroleum Geology ›› 2007, Vol. 28 ›› Issue (6): 710-713.

Previous Articles Next Articles

Study and Evaluation of Fault Sealing in Yancheng Sag

MA Hong¹, LIU Guang-di², ZHAN Ning³, ZHU Li-lin⁴, SHI Jin-hua⁴

1. Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China;
2. Institute of Geo-Resources and Information, China University of Petroleum, Beijing, 102249, China;
3. No. 3 Drilling Company, Tuha Oilfield Company, PetroChina, Shanshan, Xinjiang 838200, China;
4. Department of Development, No. 1 Production Plant, Qinghai Oilfield Company, PetroChina, Dunhuang, Qinghai, 816400, China

Received:2006-12-28 Online:2007-12-01 Published:2020-08-03

Abstract

Abstract: Yancheng sag is characterized by developed faults, which has influenced the fault sealing evaluation. According to previous studies, integrated with real geologic conditions, Pan-1 and Yan-3 faults are taken as typical faults to develop the criterion for fault lateral sealing evaluation. Using the mud smear coefficient, the criterion is given by 1.26. According to the sustain maximum normal pressure of mud plastic distortion and cracking, the effective normal pressure of fault vertical sealing ranges from 10 MPa to 22 MPa. The study shows that the sealing of fault penetrating into the basement (Member Fu-1) in Yancheng sag is characterized by regions: the south area is better, the north area is worse, such a varied feature is accordant with the real geologic situation.

Key words: Yancheng sag, fault sealing, mud smear coefficient, fault-section normal pressure, seismic interval velocity

CLC Number:

TE112.5

MA Hong, LIU Guang-di, ZHAN Ning, ZHU Li-lin, SHI Jin-hua. Study and Evaluation of Fault Sealing in Yancheng Sag[J]. Xinjiang Petroleum Geology, 2007, 28(6): 710-713.

[1]	YANG Hu1, ZHOU Penggao2, SUN Weiguo1, SHI Jiangang1, CHEN Weifeng1. Using Seismic Data to Predict Formation Pressure in Piedmont Structures at the Southern Margin of Junggar Basin [J]. , 2017, 38(3): 1-1.
[2]	WANG Li1a, CHEN Shijia1a,1b, DING Yusheng2, LU Jungang1a,1b, MA Jie1a, LI Yong1a. Using Geochemical Methods to Evaluate Fault Sealing: A Case Study from Batian Area in Jinhu Sag, Subei Basin [J]. , 2017, 38(2): 1-1.
[3]	GUAN Wensheng1,2, ZHA Ming1, ZHANG Chao2, ZENG Liping2, SUN Qi2, BAI Yin2. Quantitative Evaluation of Fault Sealing with Improving SGR Method: A Case Study of Yingmai?34Well Area in Tabei Uplift, Tarim Basin [J]. , 2015, 36(2): 1-1.
[4]	ZHANG Huanxu1, CHEN Shijia1, ZHANG Jing2, WANG Peng2, ZHOU You2, JIANG Yinghai2. An example from Youshashan fault in Yingdong area of Qaidam basin [J]. , 2013, 34(4): 1-1.
[5]	. [J]. , 2012, 33(4): 1-1.
[6]	GAO Chang-hai, ZHA Ming, ZHANG Xin-zheng. Fault Transport System and Hydrocarbon Accumulation Pattern in Chengbei Fault-Ramp Area [J]. Xinjiang Petroleum Geology, 2007, 28(6): 721-724.
[7]	WANG Dong-ye, ZHA Ming, WU Kong-you. A Discussion on Several Issues about Fault Sealing [J]. Xinjiang Petroleum Geology, 2007, 28(4): 513-515.
[8]	YANG Yong, QIU Yi-bo, ZHA Ming. Study on Fault Sealing with Synthetic Fuzzy Judgment——An example of Chenbao area in Gaoyou sag [J]. Xinjiang Petroleum Geology, 2005, 26(1): 102-104.
[9]	LIU Wei, DOU Qi-feng, WANG Shao-hua. Integrated Approach of Sealing Properties of Fault in Complex Fault Block Oil-Gas Field—An example of the lower member of Sha-2 reservoir in YongDan oilfield [J]. Xinjiang Petroleum Geology, 2003, 24(4): 289-291.
[10]	ZBAO Mi-fu, XIN Quan-ling, LI Ya-hui, GAO Hong-yan, XU Zhen-zhong. Progress in Study on Fault Sealing [J]. Xinjiang Petroleum Geology, 2001, 22(3): 258-261.

Study and Evaluation of Fault Sealing in Yancheng Sag

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 10

Recommended Articles

Metrics

Comments