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Application of pore fluid pressure prediction by velocity spectrum to Tahe Field
|Authors:||Zhu Ding; Li Zongjie; Fu Tongtong|
|Author Affiliations:||Primary: |
SINOPEC Northwest Oilfield Company, Petroleum Exploration and Production Research Institute, Urumqi, China
|Volume Title:||Shiyou yu Tianranqi Dizhi Oil & Gas Geology|
|Source:||Shiyou yu Tianranqi Dizhi = Oil & Gas Geology, 32(1), p.150-156. Publisher: Zhongquo Dizhi Xuehui, Shiyou Dizhi Zhuanye Weiyuanhui, Dizhi Pucha Kantan Zhu, Beijing, China. ISSN: 0253-9985|
|Note:||In Chinese with English summary. 19 refs.; 2 tables, 2|
|Summary:||The reasons for anomalous pore pressure are analyzed in this paper. The methods of equivalent depth to predict pore pressure from well logging data and Fillippone formula based on seismic velocity are introduced and compared with the results from MDT pressure data. The results of prediction of pore pressure from well sonic data in the Tahe oilfield TPT area shows that this area pressure coefficient change from 1.0 to 1.2, can be classified as normal pressure system. The maximum error between MDT and predicted pore pressure by Fillippone formula reaches 5% as predictied pore pressure by equivalent depth method reaches 15%, so Fillippone formula has high precision and reliability than the equivalent depth method. This study show that prediction of pore pressure using seismic velocity can predict the layer pressure which embodies the pressure change trend of a heavy layer and design the mud density before drill. It can also can improve the drill productivity and approve the support for safe drill.|
|Subjects:||Applications; Drilling; Drilling muds; Fluid pressure; Oil and gas fields; Petroleum; Petroleum engineering; Petroleum exploration; Pore pressure; Prediction; Reservoir rocks; Seismic logging; Spectral analysis; Velocity; Well-logging; Asia; China; Far East; Tahe Field; Xinjiang China|
|Coordinates:||N411500 N411500 E0840000 E0840000|
|Copyright Information:||GeoRef, Copyright 2021 American Geosciences Institute.|
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