Experimental Investigation of Factors Affecting Formation Damage through Aqueous Phase Trapping in Gas Reservoirs

Please enable javascript in your browser.

Mirzaei Paiaman, Abouzar | 2010

636 Viewed

Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 40780 (06)
University: Sharif University of Technology
Department: Chemical and Petroleum Engineering
Advisor(s): Masihi, Mohsen; Moghadasi, Jamshid
Abstract:
Aqueous phase trapping (APT) in many of the oil and gas reservoirs is a significant mechanism of formation damage during drilling, completion, work over, and stimulation operation. APT can limit the productivity of the well to a high extent, especially in low permeable gas reservoirs. Experimental investigation of factors affecting APT is vital to recognize extends of associated damage and contribution of each factor. Albeit many experimental studies have been conducted as regards factors affecting removal of phase traps in understudy mechanism of formation damage, but up to date no experimental data has been published regarding effect of different factors on reservoir’s potential for APT. In this paper using low permeable sandstone cores effect of some major factors affecting gas reservoir’s potential for APT is investigated. Studied factors are initial water saturation, permeability, drawdown pressure and water viscosity. In addition, using experimental data sets, accuracy of current empirical correlations used to predict APT potential is investigated
Keywords:
Gas Reservoirs ; Capillary Pressure ; Permeability ; Formation Damage ; Aqueous Phase Trapping

No TOC