IMPROVING RECOVERY VIA CO2 HUFF AND PUFF IN COMPLEX FAULT BLOCK OILFIELD IN SUBEI AREA

doi:10.3863/j.issn.1674-5086.2009.02.026

西南石油大学学报(自然科学版) ›› 2009, Vol. 31 ›› Issue (2): 100-104.DOI: 10.3863/j.issn.1674-5086.2009.02.026

• 石油与天然气工程 • Previous Articles Next Articles

IMPROVING RECOVERY VIA CO₂ HUFF AND PUFF IN COMPLEX FAULT BLOCK OILFIELD IN SUBEI AREA

LIU Wei¹ QIN Xue-cheng¹ TANG Jian-xin¹ LI Shi² SUN Lei³

1.East China Branch，SINOPEC，Jiangsu Nanjing 210011，China；2.Research Institute of Petroleum Exploration and Development，CNPC，Beijing 100083；3.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation，Southwest Petroleum University，Chengdu Sichuan 610500，China

Received:1900-01-01 Revised:1900-01-01 Online:2009-04-20 Published:2009-04-20

Abstract

Abstract: Complex fault block reservoirs in Subei presents the features of small，broken，deep，thin and low ones，prominent problems of production is low degree of production，high water cut，quick decrease of reservoir pressure，and two thirds of geological reserves that is in low permeability and high viscosity reservoirs are undeveloped yet.Because of the small oilbearing area and low reserves abundance，the method of improving recovery used in big oilfield is not suitable for small complex fault block oilfield.In the light of above mentioned situation，by using abundant CO₂resources in Subei area，research and application of improving recovery rate by using CO₂ huff-puff is carried out.Through experimental simulation，numerical simulation and compositive analysis，a set of improving recovery technologies via huff-puff suitable for complex fault block oilfield are developed and good results through field application are obtained.

Key words: complex fault block oilfield, CO₂, huff and puff, enhanced recovery, IOR, Subei area

CLC Number:

TE327

LIU Wei QIN Xue-cheng TANG Jian-xin LI Shi SUN Lei. IMPROVING RECOVERY VIA CO₂ HUFF AND PUFF IN COMPLEX FAULT BLOCK OILFIELD IN SUBEI AREA[J]. 西南石油大学学报(自然科学版), 2009, 31(2): 100-104.

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IMPROVING RECOVERY VIA CO₂ HUFF AND PUFF IN COMPLEX FAULT BLOCK OILFIELD IN SUBEI AREA

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