Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Petroleum Geology & Experiment》 2009-04
Add to Favorite Get Latest Update

SINGLE WELL PRODUCTIVITY EVALUATION AND PREDICTION IN TIGHT CLASTIC RESERVOIR ROCK OF SHAXIMIAO FORMATION IN THE XINCHANG GAS FIELD,WEST SICHUAN

Shi Lei1,2,Kuang Jianchao1,Zeng Jianyi1,Liu Xin1,Luo Xin1,Cai Zuohua1 (1.Chengdu University of Technology,Chengdu,Sichuan 610059,China;2.Southwest Branch,SINOPEC,Chengdu,Sichuan 610016,China)  
The gas reservoirs of Jurassic Shaximiao Formation in the Xinchang Gas Field of West Sichuan are typical low-permeability tight clastic ones.Due to complex geological conditions and strongly heterogeneous characteristics in this area,it is difficult to predict single well productivity.By analyzing logging information and reservoir physical property,we first extract 11 parameters related to productivity,such as interval transit time,fracture aperture,fracture permeability,etc.Second,with correlation coefficient method,6 productivity controlling characteristic parameters are determined,including fracture aperture,fracture permeability,productivity coefficient,fracture porosity,fracture developing index and composite evaluation index.Third,we select 33 tested wells as known samples,construct productivity forecast equation with the theory of support vector machine,and then get the standard error of 0.066 1 and the mean absolute error of 0.018 2.In the end,with the equation,we predict 24 untested wells to complete single well productivity evaluation of Shaximiao Formation.
【Fund】: 四川省学术和技术带头人培养基金(川人办发[2008]24号);; 四川省教育厅人文社科重点项目(2008ZB026);; 成都理工大学商学院自立项目(Sxyzc08—09)
【CateGory Index】: P618.13
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved