THE LAB TEST OF A NEW TYPE SELF-GENERATED FOAM GEL COMPOUND WATER-CONTROL AGENT

doi:10.3863/j.issn.1674-5086.2009.04.030

西南石油大学学报(自然科学版) ›› 2009, Vol. 31 ›› Issue (4): 138-140.DOI: 10.3863/j.issn.1674-5086.2009.04.030

• 油气化学工程与化工 • Previous Articles Next Articles

THE LAB TEST OF A NEW TYPE SELF-GENERATED FOAM GEL COMPOUND WATER-CONTROL AGENT

XU Chun-bi¹ WANG Ming-jian² WU Wen-gang³ ZHU Gui-juan⁴ WANG Shu-kun⁴

1.Petroleum Engineering Institute,Chongqing University of Science and Technology,Chongqing 400042,China;2.Nanchong Petrochemical Plant，Nanchong Sichuan 637000,China;3.Research Institute of Natural Gas Technology,PetrolChina Southwest Oil and Gas field Company， Chengdu Sichuan 610213,China；4.Oil and Gas Reservoir Evaluation Department，Dagang Oilfield Branch,PetroChina,Tianjin 300280,China

Received:1900-01-01 Revised:1900-01-01 Online:2009-08-20 Published:2009-08-20

Abstract

Abstract: Aiming at the bad stability and limited blocking effectiveness of conventional foam system,the self-generated foam gel compound water-control agent is proposed.In this system，NH₄Cl-NaNO₂ is chosen as the self-generated gas agent，sodium silicate is chosen as the gel agent,acid-catalyst is a kind of Alkalescent-strong acid sodium salt,foam agent is sodium dodecyl benzene sulfonate.By means of high-temperature and high-pressure reaction vessel,the properties of self-generated gas system is researched，the result indicates that this system has the characteristic of delayed gas generation，it can react violently after 12hours；the jellification time is 16hours，it has a certain compressive strength after jellification which can enhance blocking ability;core flow test shows that the system can block aquiferous core effectively,the efficiency of shut off is 88.1%,the plugging performance to oily core is noneffective,so it is a kind of well selective water-control agent.

Key words: the self-generated gas, foam, gel, water-control agent, plugging performance

CLC Number:

TE358.3

XU Chun-bi WANG Ming-jian WU Wen-gang ZHU Gui-juan WANG Shu-kun . THE LAB TEST OF A NEW TYPE SELF-GENERATED FOAM GEL COMPOUND WATER-CONTROL AGENT[J]. 西南石油大学学报(自然科学版), 2009, 31(4): 138-140.

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THE LAB TEST OF A NEW TYPE SELF-GENERATED FOAM GEL COMPOUND WATER-CONTROL AGENT

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