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The application of 3D geological modeling technology in horizontal well geologic steering:A case from X3-8 horizontal well development zone

Pang Qiang1,Feng Qiang-han1,Ma Yan2,Zhang Yu-yu1,Peng Xue-hua1   

  1. 1. Gas Production Plant No.3,Changqing Oilfield Company,PetroChina,Wushenqi 017300,China;
    2. Oil Production Plant No.11,Changqing Oilfield Company,PetroChina,Xifeng 745000,China
  • Received:2016-09-02 Revised:2017-01-03 Online:2017-03-10 Published:2017-03-10

Abstract:

Due to the typical sedimentary microfacies and its evolution features of Upper Paleozoic gas reservoir in Sulige gas field,the reservoir is thin and dispersal. The strong heterogeneity of reservoir and relative complex geological condition cause the late greater difficulty of development. Horizontal well as the effective means to develop Sulige Gasfield,it has been applied as large-scale promotion in Sulige. In order to improve the effect and quality of horizontal well geologic steering,this paper used 3D geological modeling technology,combining traditional horizontal well geo-steering technology,applying the analysis of the LWD GR data validation,finally improved the accuracy and success rate of horizontal well geologic steering technology and increased the drilling rate of effective reservoir better. With 3D geologic steering technology in X1-8H1,it obtained sandstone drilling rate of 78.8% and effective reservoir drilling rate of 59.5%,and made great development effects combined with the late hydraulic jet fracturing,which has important guiding and reference significance in drilling implementation and late-reformation in Sulige Gasfield.

Key words: Sulige Gasfield, Geologic steering technique of horizontal well, 3D geological modeling, LWD GR

CLC Number: 

  • TE19

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