Oil & Gas Geology ›› 2008, Vol. 29 ›› Issue (3): 376-382.doi: 10.11743/ogg20080315

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Deliverability characteristics of gas pools with abnormal pressure——an example from well Heba-1 in the third member of the Feixianguan Formation of Hebachang block,the Sichuan Basin

Zhang Shuqiu1, Liu Chuanxi2, Liu Zhengzhong3   

  1. 1. Oilfield Exploration & Production Department, SINOPEC, Beijing 100029, China;
    2. Research Institute of Petroleum Exploration & Production, SINOPEC, Beijing 100083, China;
    3. Southwest Oil Company, SINOPEC, Chengdu, Sichuan 610016, China
  • Received:2008-01-09 Online:2008-06-24 Published:2012-01-16

Abstract:

Aiming at the geological features of gas pools in the third member of Feixiangua Formation,Heba block,northern and eastern Sichuan Basin,the article studies and analyzes the formation test and production test data and summarizes the types of abnormal pressure gas pools and their production performance.The results show that production proration according to a value less than 1/5 of AOF(calculated with production testing data) can bring the formation energy into full play,longer production plateau period,and higher recovery ratio.The research also confirms the reliability of predicting bottom hole pressure with well head pressure and points out production characteristics of abnormal pressure gas pools as well as problems that need to be addressed during the production,providing references for the development of similar gas pools.

Key words: abnormal pressure, gas pool deliverability, well Heba-1, gas pool in the third member of the Fei-xianguan Formation, Sichuan Basin

CLC Number: