Environmentally Friendly Dispersants for HP/HT Aqueous Drilling Fluids Containing Mn3O4, Contaminated With Cement, Rock Salt, and Clay

Kar, Yusuf; Moajil, Abdullah M. Al; Nasr‐El‐Din, Hisham A.; Al‐Bagoury, Mohamed; Steele, Christopher D.

doi:10.2118/141957-ms

Cited by 8 publications

(4 citation statements)

References 17 publications

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“…A lignite based additive was used as a supplementary fluid loss additive. In this fluid a newly developed HPHT acrylic based dispersant was used and was very effective in controlling the rheology (Kar Y et al 2011). Also fine & medium CaCO 3 were used as bridging agents.…”

Section: Micronized Ilmenite In Hpht Water Based Drilling Fluidmentioning

confidence: 99%

Micronized Ilmenite - A Non-damaging & Non-sagging New Weight Material for Drilling Fluids

Al‐Bagoury

2014

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Ilmenite (FeTiO 3 ) was first introduced as a weight material in the North Sea area in the early 1980's. The quality of ilmenite suitable for drilling fluids was continuously improved to meet the drilling criteria. Ilmenite as a weight material offers many benefits over API barite such as high density (4.6SG), mineral hardness (6 Mohs), low heavy metals content, acid solubility and sustainability due to the large reserves.Currently there are certain drilling areas such as narrow pressure margin wells, HPHT wells, deep water, ERD, and slim hole, where API barite may not offer the required performance. For those wells a controlled rheology and minimal sag is the key to success and a specialty weight material can provide this. To fulfill such needs a micronized ilmenite grade (5µm) has been developed for use as a weight material for drilling fluids. The paper will show the testing of the new grade in both aqueous and non-aqueous drilling fluids. High temperature dynamic sag and filtration results will be presented. Acid solubility in hydrochloric acid will be highlighted. The new grade shows excellent dynamic sag, stable rheology and high acid solubility, which are very useful for many drilling operations particularly deep offshore drilling. On a top of the high performance this new advanced material is a cost-effective solution for some of the high costly drilling challenges.

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Section: Micronized Ilmenite In Hpht Water Based Drilling Fluidmentioning

confidence: 99%

Micronized Ilmenite - A Non-damaging & Non-sagging New Weight Material for Drilling Fluids

Al‐Bagoury

2014

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“…To avoid agglomeration of Mn 3 O 4 particles at high temperatures, Mu et al (2006) suggested synthesizing Mn 3 O 4 particles using H 2 O 2 as an oxidant and starch as a capping agent. Moreover, dispersant packages were developed for water-based (Kar et al 2011) and oil-based ) drilling fluids weighted with Mn 3 O 4 (Al .…”

Section: Weighting Agents In Drilling Fluidsmentioning

confidence: 99%

Formation Damage Caused by Improper Mn3O4-Based Filter-Cake-Cleanup Treatments

Moajil

Nasr‐El‐Din

2013

Journal of Canadian Petroleum Technology

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Summary Cleanup of filter cake is a difficult task and becomes more challenging when dealing with weighting materials [e.g., manganese tetraoxide (Mn3O4)]. Mn3O4 is a strong oxidizing agent and can be used as a catalyst because of its active phase, a nonstoichiometric Mn3O4 composed of an octahedral Mn2O3 phase and a tetrahedral MnO phase, which will result in complex interactions with most cleaning fluids. The reaction of selected organic acids and chelating agents with Mn3O4 particles as a function of time and temperature was studied. Solubility and compatibility tests of Mn3O4 particles with cleaning fluids were conducted using a high-pressure/hightemperature (HP/HT) see-through cell. Reaction kinetic tests were conducted using a three-neck round-bottom flask. Atomic absorption was used to measure manganese concentration, and X-ray diffraction was used to analyze solids remaining after the reaction. A white precipitate of manganese citrate was produced following the reaction of citric acid with Mn3O4 up to 284°F. The amount of precipitate was increased with temperature and initial acid concentration. An amino polycarboxylic acid chelating agent derived from L-glutamic acid (GLDA) (a chelant) reacted with Mn3O4 particles completely at 190°F. However, a large amount of a white was precipitate produced. Similarly, a white precipitate was observed with oxalic and tartaric acids. The reaction of diethylene triamine pentaacetic acide (DTPA) (a chelate) with Mn3O4 particles in a glass reactor produced Mn (silicates) at 212 and 284°F. The results of the present study will help drilling/completion engineers avoid using such cleaning fluids to prevent formation damage after filter-cake-removal treatments.

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“…Filtrate loss reducer is the core additive of drilling fluid, which can reduce the amount of drilling fluid filtrate loss penetration into the formation interior to ensure safe oilfield production. In recent years, fumaric acid and maleic acid were used by many researchers to synthesize drilling fluid additives [ 22 , 23 , 24 ]. If FAS can be used as raw material to synthesize filtrate loss reducer for oil well drilling fluid, it will be a method to realize the high-value utilization of FAS.…”

Section: Introductionmentioning

confidence: 99%

Composition, Properties, and Utilization of Fumaric Acid Sludge By-Produced from Industrial Phthalic Anhydride Wastewater Treatment

et al. 2022

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To understand fumaric acid sludge (FAS) systematically and comprehensively and find out how to utilize it, we conducted a series of characterization analyses on FAS. Fourier transform infrared (FT-IR) Spectra shows that the main component of FAS is fumaric acids and also contains a small amount of silicate. The nuclear magnetic resonance hydrogen (1H-NMR) spectrum also shows that fumaric acid accounted for a large proportion of FAS. The X-ray diffraction (XRD) shows that the main phase in FAS is fumaric acid, and there is also a small amount of Kaliophilite. After gas chromatography and mass spectrometry (GC-MS) and pyrolysis gas chromatography and mass spectrometry (Py-GC-MS) analysis, it indicates that the possible volatiles and pyrolysis products in FAS are fumaric acid, maleic acid, maleic anhydride, phthalic acid, etc. In the test of Liquid chromatography and mass spectrometry (LC-MS), we determined the contents of phthalic acid, fumaric acid, and maleic acid in FAS. The detailed mass content of each component in FAS is as follows: phthalic acid is about 0.10–0.15%; maleic anhydride is about 0.40–0.80%; maleic acid is about 18.40–19.0%; fumaric acid is about 55.00–56.90%; succinic anhydride is about 0.06–0.08%; acrylic acid is about 0.06–0.08%; malic acid is about 0.90–1.00%; acetic acid is about 0.10–0.20%; silicate is about 0.25–0.30%; phthalic anhydride is about 0.20–0.30%; water is about 24.30–24.80%. The filtrate loss reducer (PAAF) used in oilwell drilling fluids synthesized by FAS not only has excellent temperature and complex saline resistance, the API filtration loss (FL) was only 13.2 mL/30 min in the complex saline based mud, but is also cost-effective.

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Environmentally Friendly Dispersants for HP/HT Aqueous Drilling Fluids Containing Mn3O4, Contaminated With Cement, Rock Salt, and Clay

Cited by 8 publications

References 17 publications

Micronized Ilmenite - A Non-damaging & Non-sagging New Weight Material for Drilling Fluids

Micronized Ilmenite - A Non-damaging & Non-sagging New Weight Material for Drilling Fluids

Formation Damage Caused by Improper Mn3O4-Based Filter-Cake-Cleanup Treatments

Composition, Properties, and Utilization of Fumaric Acid Sludge By-Produced from Industrial Phthalic Anhydride Wastewater Treatment

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