Modification of bentonite clay by a cationic surfactant to be used as a viscosity enhancer in vegetable-oil-based drilling fluid

2017 ◽  
Vol 135 ◽  
pp. 307-312 ◽  
Author(s):  
Luciana Avelino Ratkievicius ◽  
Fernando José Vieira Da Cunha Filho ◽  
Eduardo Lins De Barros Neto ◽  
Vanessa Cristina Santanna
Keyword(s):  
Cationic Surfactant ◽  
Vegetable Oil ◽  
Drilling Fluid ◽  
Bentonite Clay

A New Cationic Shale Inhibitor and Water Blocking Agent for Water-Based Drilling Fluid

2021 ◽  
Author(s):  
Mohammed Al-Heed ◽  
Mobeen Murtaza ◽  
Sayed Hussain ◽  
Rahul Gajbhiye
Keyword(s):  
Cationic Surfactant ◽  
Drilling Fluid ◽  
Petroleum Industry ◽  
Blocking Agent ◽  
Sem Analysis ◽  
X Ray Diffraction ◽  
Water Penetration ◽  
Water Blocking ◽  
Shale Formation ◽  
Clay Layers

Abstract Drilling a shale formation is one of the challenges faced by the petroleum industry. Designing the drilling fluid, that reduces the interaction with shale, is important for safe and efficient drilling. This study investigates the new cationic surfactant as a shale inhibitor for the drilling fluid. The main objective of this study is to block the water penetration into the clay layers using the new shale inhibitor and evaluate its performance with commercial shale inhibitors. To assess the performance of new cationic surfactant two reliable clay sources were considered. The first source is from unconventional Qusiba (Kaolinite) formation in Saudi Arabia and the second is a commercial Bentonite. The effect of new cationic formulation on preventing clay swelling were tested using API dynamic swelling meter at reservoir condition. Further, X-ray diffraction and SEM analysis were performed to ensure clay stability before exposing it to WBM and after exposure for cation exchange phenomenon, shape and size of the particle and efficacy of water penetration blockage. The results were also compared with commercial shale inhibitor. The results show that the new cationic surfactant can act as a shale inhibitor as well as water blocking agent. It also showed acceptable performance compare with common shale inhibitors used in the industry, the performance can be further improved by optimizing the percentage of surfactant addition to the drilling fluid. This study provides the new cationic surfactant and proved to have good feature for oilfield applications and the cationity which is helping to reduce the water shale interactions.

scholarly journals The influence of organic modification on the structural and adsorptive properties of bentonite clay and its application for the removal of lead

2013 ◽  
Vol 45 (3) ◽  
pp. 363-376 ◽  
Author(s):  
S. Stojiljkovic ◽  
M. Stamenkovic ◽  
D. Kostic ◽  
M. Miljkovic ◽  
B. Arsic ◽  
...  
Keyword(s):  
Cationic Surfactant ◽  
Bentonite Clay ◽  
Distilled Water ◽  
Organic Modification ◽  
Adsorptive Properties

Organic modification of mineral clay using the monomer ethenyl acetate was performed. The exchange of inorganic interlayer clay cations was achieved using the cationic surfactant Genamine CTAC and Asepsol. Aiming to investigate the influence of organic modifications on adsorptive clay properties, dried composites of clay/ethenyl acetate, with different percentages of clay were soaked in distilled water. The influence of the temperature on the adsorptive properties of organoclays was also followed. The adsorptive properties of the obtained composites of organoclays with Luviskol, Carbopole and purine were investigated along with their capability for removing Pb2+ from water in charged systems.

SPENT CANOLA OIL BLEACHING CLAYS: POTENTIAL FOR TREATMENT OF T-2 TOXICOSIS IN RATS AND SHORT-TERM INCLUSION IN DIETS FOR IMMATURE SWINE

1984 ◽  
Vol 64 (3) ◽  
pp. 725-732 ◽  
Author(s):  
T. K. SMITH
Keyword(s):  
Body Weight ◽  
Key Words ◽  
Vegetable Oil ◽  
Canola Oil ◽  
Bentonite Clay ◽  
Feed Consumption ◽  
Residual Oil ◽  
Trichothecene Mycotoxin ◽  
Short Term ◽  
Growth Depression

Experiments were conducted to determine the potential for spent vegetable oil bleaching clays to overcome growth depression and feed refusal caused by T-2 toxin, a Fusarium trichothecene mycotoxin. Rats were fed spent canola oil bleaching clays at 0.0, 2.5, 5.0, 7.5 and 10.0% of the diet with and without 3 mg T-2 toxin per kilogram of feed. The bleaching clays largely overcame depressions in body weight and feed consumption caused by T-2 toxin over the 2-wk experiment. Feeding defatted clay at levels corresponding to the levels fed in the first experiment produced similar results while feeding residual oil had very little effect. Feeding spent bentonite produced the same results except that the residual oils were slightly more effective at overcoming T-2 toxicosis than the residual canola oil. Rats were than fed the same levels of spent canola oil bleaching clays for 2 wk and were orally dosed with [3H] T-2 toxin. The fraction of the dose excreted in feces rose consistently with the level of spent canola oil bleaching clays but these increases were not statistically significant. In a final experiment, 48 barrows were fed 0, 5 and 10% spent canola oil bleaching clays for 17 days. Growth and feed consumption were not affected by the level fed. It was concluded that spent canola oil bleaching clays can be used to lessen feed refusal due to T-2 toxin in rat diets. This produce can also be fed to growing swine for short periods without affecting performance. Key words: Rats, swine, T-2 toxin, canola oil, bentonite, clay

Adsorptive removal of acid red from aqueous solutions by cationic surfactant-modified bentonite clay

2014 ◽  
Vol 56 (7) ◽  
pp. 1929-1939 ◽  
Author(s):  
Manohar D. Mullassery ◽  
Noeline B. Fernandez ◽  
Thayyath S. Anirudhan
Keyword(s):  
Aqueous Solutions ◽  
Cationic Surfactant ◽  
Bentonite Clay ◽  
Modified Bentonite ◽  
Adsorptive Removal

scholarly journals Evaluation of mineral and organic inhibitor effects on bentonite clay

Georesursy ◽  
2018 ◽  
Vol 20 (4) ◽  
pp. 355-358
Author(s):  
F. Degtjarjov
Keyword(s):  
Potassium Chloride ◽  
Drilling Fluid ◽  
Bentonite Clay ◽  
Inhibitory Effect ◽  
Organic Reagent ◽  
Drilling Mud ◽  
Drilling Tool ◽  
Clay Deposits ◽  
The Republic ◽  
Main Component

The supra-salt complex of the oilfield of the Republic of Belarus is represented by high-colloidal multicolored clay deposits with layers of unstable sandstones and aleurolites evenly distributed throughout the section. Drilling of intervals which are represented by clay sediments is accompanied by complications caused by swelling of clays – stuck, tightening, sticking clay on the drilling tool. Swelling occurs during drilling of high-colloidal clays. As a result of the action of the drilling mud and its filtrate, the clay swells, narrowing the trunk and reducing the stability of the walls of well. For the prevention or maximum reduction of the intensity of the swelling the drilling mud must have a high inhibitory ability. Such properties are attached by special reagents-inhibitors, which are the main component of the inhibiting drilling fluid. The creation of such drilling fluid is advisable to start with the choice of the reagent-inhibitor. This article provides a comparison of the inhibitory effect of the two reagents specific to organic (Polyekol) and inorganic (potassium chloride) compounds. To assess the effectiveness of these reagents, the indicator of moisturizing ability was used. In the experiment, the highest efficiency demonstrated organic reagent-inhibitor Polyekol at a concentration of 2%, and the inorganic reagent-inhibitor potassium chloride resulted in cracking of samples. The results obtained during the comparison of these reagents will form the basis for the development of an inhibiting drilling mud for drilling of the supra-salt deposits of the Pripyat trough.

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