Removal Efficiency of Water-Based Drill-In Fluid Filter Cake Using Polylactic Acid

2012 ◽  
Author(s):  
Salaheldin Elkatatny ◽  
Hisham A. Nasr-El-Din
Keyword(s):  
Polylactic Acid ◽  
Removal Efficiency ◽  
Filter Cake ◽  
Fluid Filter ◽  
Water Based

A review of different approaches for water-based drilling fluid filter cake removal

2020 ◽  
Vol 192 ◽  
pp. 107346 ◽  
Author(s):  
Osama Siddig ◽  
Ahmed Abdulhamid Mahmoud ◽  
Salaheldin Elkatatny
Keyword(s):  
Filter Cake ◽  
Drilling Fluid ◽  
Fluid Filter ◽  
Water Based ◽  
Cake Removal

scholarly journals Removal of Calcium Carbonate Water-Based Filter Cake Using a Green Biodegradable Acid

2020 ◽  
Vol 12 (3) ◽  
pp. 994 ◽  
Author(s):  
Abdelmjeed Mohamed ◽  
Salaheldin Elkatatny ◽  
Abdulaziz Al-Majed
Keyword(s):  
Calcium Carbonate ◽  
Corrosion Rate ◽  
Removal Efficiency ◽  
Filter Cake ◽  
Drilling Fluid ◽  
Ceramic Filter ◽  
Carbonate Water ◽  
Filter Disc ◽  
Water Based ◽  
Acid Formulation

The filter cake is a very thin layer of solid particles deposited from the drilling fluid onto the surface of the drilled formation. This is essential during the drilling process as it reduces fluid filtrate invasion, contributing for the well’s integrity. When the drilling processes are over, this formation must be removed efficiently to allow for the primary cement jobs to be conducted efficiently, and for hydrocarbons to be produced without any restrictions. The removal process of the filter cake is challenging and requires specific techniques, depending on several factors including the filter cake homogeneity, drilling fluid components, weight of materials used, and the continuous phase of the drilling fluid (i.e., water or oil). This study evaluates the use of green biodegradable removal acid (GBRA) to dissolve calcium carbonate water-based filter cake. The removal efficiency of this new acid was analyzed using filtration and removal tests, conducted on a ceramic filter disc and real core samples at 212 °F. Then, the new formulation was subjected to physical properties measurements and biodegradation and corrosion tests. Furthermore, the performance of the new acid formulation was compared with 10 wt.% hydrochloric acid (HCl) to ensure its efficiency. The obtained results showed that the new acid formulation was effective at removing the filter cake, with a removal efficiency greater than 90%. The retained permeability was 100% and 94% with the ceramic filter disc and the real limestone core sample, respectively, confirming the good removal performance of the new acid formulation. The corrosion rate of GBRA (50 wt.%) at 212 °F was 0.032 lb/ft2, which was within the acceptable range according to oil industry practices (i.e., less than 0.05 lb/ft2 if the temperature is less than 250 °F), while HCl (10 wt.%) yielded a high corrosion rate of 0.68 lb/ft2.

Using Hydrochloric Acid to Remove Ilmenite Water-Based Filter Cake in HPHT Applications

2013 ◽  
Author(s):  
S. M. Elkatatny ◽  
J. Xiao ◽  
H. A. Nasr-El-Din ◽  
M. Al-Bagoury
Keyword(s):  
Hydrochloric Acid ◽  
Filter Cake ◽  
Water Based

A New Technique to Characterize Drilling Fluid Filter Cake

2011 ◽  
Author(s):  
Salaheldin Elkatatny ◽  
Mohamed Ahmednasreldin Mahmoud ◽  
Hisham A. Nasr-El-Din
Keyword(s):  
Filter Cake ◽  
Drilling Fluid ◽  
New Technique ◽  
Fluid Filter ◽  
A New Technique

Failure modes of drilling fluid filter cake

Géotechnique ◽  
2001 ◽  
Vol 51 (9) ◽  
pp. 777-785 ◽  
Author(s):  
P. Cerasi ◽  
K. Soga
Keyword(s):  
Filter Cake ◽  
Failure Modes ◽  
Drilling Fluid ◽  
Fluid Filter

Self-destructive barite filter cake in water-based and oil-based drilling fluids

2021 ◽  
Vol 197 ◽  
pp. 107963
Author(s):  
Zeeshan Tariq ◽  
Muhammad Shahzad Kamal ◽  
Mohamed Mahmoud ◽  
Olalekan Alade ◽  
Ayman Al-Nakhli
Keyword(s):  
Filter Cake ◽  
Drilling Fluids ◽  
Water Based
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