Recovery of Low Permeability Reservoirs Considering Well Shut-Ins and Surfactant Additivities

被引：13

作者：

Li, Shuai ^{[1
,2
,3
]}

Tang, Jun ^{[4
]}

Ding, Yunhong ^{[1
]}

Liu, Shimin ^{[2
,3
]}

Liu, Guangfeng ^{[5
]}

Cai, Bo ^{[1
]}

机构：

[1] PetroChina, Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China

[2] Penn State Univ, Dept Energy & Mineral Engn, Ctr G3, University Pk, PA 16802 USA

[3] Penn State Univ, Energy Inst, University Pk, PA 16802 USA

[4] Yangtze Univ, Sch Geosci, Wuhan 430100, Hubei, Peoples R China

[5] China Univ Petr, Key Lab Petr Engn, Educ Minist, Beijing 102249, Peoples R China

来源：

ENERGIES | 2017年 / 10卷 / 09期

基金：

中国国家自然科学基金;

关键词：

low permeability reservoir; hydraulic fracturing; well shut-ins; surfactant additivities; imbibition; wettability alteration; WETTABILITY ALTERATION; SPONTANEOUS IMBIBITION; WATER-BLOCKING; OIL-WET; MIGRATION;

D O I：

10.3390/en10091279

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

To investigate the mechanism whereby well shut-ins and surfactant additivities can increase hydrocarbon output after hydraulic fracturing, in this paper, we simulated well shut-ins with one end open (OEO) rock samples and performed a serious of imbibition experiments with different surfactant additivities based on contact angle (CA) and interfacial tension (IFT) measurements. Scanning electron microscope (SEM) and nuclear magnetic resonance (NMR) methods were also been adopted in the detection before and after shut-ins. The results demonstrated that cationic surfactants result in better improving oil recovery (IOR) performance due to their high wettability alteration ability on vertical fracture faces, while different kinds of surfactants have a similar ability in lowering IFT. As for shut-ins duration, the NMR transverse relaxation time (T-2) spectrum move towards the left side, indicating that aqueous phases migrate to smaller pores spaces and deeper distances. Aqueous migration during the shut-ins period can remove near-fracture trapped water, while surfactant additivities can accelerate and enhance this process, and these two points are the most direct reasons for the observed hydrocarbon output increases.

引用

页数：14

共 27 条

[1] Chemical Treatment To Mitigate Condensate and Water Blocking in Gas Wells in Carbonate Reservoirs [J].

Ahmadi, M. ;

Sharma, M. M. ;

Pope, G. A. ;

Torres, D. E. ;

McCulley, C. A. ;

Linnemeyer, H. .

SPE PRODUCTION & OPERATIONS, 2011, 26 (01) :67-74

[2]

Almulhim A., 2014, P AB DHAB INT PETR E

[3]

Alramahi B, 2012, ONEPETRO

[4]

[Anonymous], P SPE LAT AM CAR PET

[5] In-Situ Water-Blocking Measurements and Interpretation Related to Fracturing Operations in Tight Gas Reservoirs [J].

Bazin, B. ;

Peysson, Y. ;

Lamy, F. ;

Martin, F. ;

Aubry, E. ;

Chapuis, C. .

SPE PRODUCTION & OPERATIONS, 2010, 25 (04) :431-437

[6] Imbibition and Water Blockage In Unconventional Reservoirs: Well-Management Implications During Flowback and Early Production [J].

Bertoncello, A. ;

Wallace, J. ;

Blyton, C. ;

Honarpour, M. ;

Kabir, C. S. .

SPE RESERVOIR EVALUATION & ENGINEERING, 2014, 17 (04) :497-506

[7]

CHEN HY, 2000, P SPE INT PETR C EXH

[8] Impact of Water Dynamics in Fractures on the Performance of Hydraulically Fractured Wells in Gas-Shale Reservoirs [J].

Cheng, Y. .

JOURNAL OF CANADIAN PETROLEUM TECHNOLOGY, 2012, 51 (02) :143-151

[9]

Das P., 2014, P SPE EAGE EUR UNC R

[10] Experimental Investigation of Fracturing-Fluid Migration Caused by Spontaneous Imbibition in Fractured Low-Permeability Sands [J].

Dutta, R. ;

Lee, C. -H. ;

Odumabo, S. ;

Ye, P. ;

Walker, S. C. ;

Karpyn, Z. T. ;

Ayala H, L. F. .

SPE RESERVOIR EVALUATION & ENGINEERING, 2014, 17 (01) :74-81

← 1 2 3 →