Production Test Dynamic and Developing Technique Strategies for the Condensate Gas of Marine Carbonate in Tazhong Area,Tarim Basin

HAN Jian-fa, SONG Yu-bin, XIONG Chang, JI Yun-gang, ZHANG Yun-feng, YANG Lei, HE Hu-zhuang

doi:10.11764/j.issn.1672-1926.2014.12.2047

2014 , Vol. 25 >Issue 12: 2047 - 2057

DOI: https://doi.org/10.11764/j.issn.1672-1926.2014.12.2047

Production Test Dynamic and Developing Technique Strategies for the Condensate Gas of Marine Carbonate in Tazhong Area,Tarim Basin

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1.Tarim Oil Field Company,PetroChina,Korla 841000,China;
2.China University of Geosciences,Wuhan 430074,China;
3.Southwest Petroleum University,Chengdu 610500,China

Received date: 2014-08-13

Revised date: 2014-11-16

Online published: 2019-09-18

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Abstract

The exploitation of condensate gas fields in deep ancient marine carbonate reservoirs faces a series of challenges because of complicated geological conditions,such as the polygenetic and multiple composited complex fracture-caved reservoirs,multiple charging sites and multiple accumulation,high temperature and high pressure,multiphase flows.Based on the analysis on early testing productions,natural decline,water content variations,hydrocarbon phase change about 100 wells,and the relationship between reservoir and natural decline,water content variations were researched in this paper.Results suggest that four reservoir types control natural decline rules and five water content variation rules are controlled by the connection model between reservoir and water.It is concluded that three types of phase and two combinations would have been controlled by reservoir types,the production pressure difference,water energy and composition gradient.According to the knowledge about reservoir,water content variations and phase changes,series of critical techniques assisting on promoting the development benefits were established including on well location optimizing technique,well types optimizing technique,water and gas injection technique and phase change controlling technique.The fruits in this paper play great important roles in the project of 100,000 tons of condensate gas production in marine carbonate rocks at Tazhong area,meanwhile,it can be worthy referred on the exploration and development of similar types of complex oil/gas reservoir.

Key words： Tazhong; Marine carbonate; Condensate gas field; Test dynamics; Exploitation strategy

Cite this article

HAN Jian-fa, SONG Yu-bin, XIONG Chang, JI Yun-gang, ZHANG Yun-feng, YANG Lei, HE Hu-zhuang . Production Test Dynamic and Developing Technique Strategies for the Condensate Gas of Marine Carbonate in Tazhong Area,Tarim Basin[J]. Natural Gas Geoscience, 2014 , 25(12) : 2047 -2057 . DOI: 10.11764/j.issn.1672-1926.2014.12.2047

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