Barium Sulfate Scale Removal at Low-Temperature

Precipitation of the scale in the oil and gas reservoirs, surface and subsurface equipment, and processing and production facilities is a big problem as it affects petroleum production. The scale precipitations decrease the oil and gas production and cause economical loss. Solving this issue require...

Full description

Saved in:
Bibliographic Details
Main Authors: Hany Gamal, Saad Al-Afnan, Salaheldin Elkatatny, Mohamed Bahgat
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Geofluids
Online Access:http://dx.doi.org/10.1155/2021/5527818
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832550855919796224
author Hany Gamal
Saad Al-Afnan
Salaheldin Elkatatny
Mohamed Bahgat
author_facet Hany Gamal
Saad Al-Afnan
Salaheldin Elkatatny
Mohamed Bahgat
author_sort Hany Gamal
collection DOAJ
description Precipitation of the scale in the oil and gas reservoirs, surface and subsurface equipment, and processing and production facilities is a big problem as it affects petroleum production. The scale precipitations decrease the oil and gas production and cause economical loss. Solving this issue requires an engineering investigation to provide a safe, efficient, and economic solution. Consequently, this study proposed a developed dissolver for barium sulfate scales, where two field-scale samples were collected from different locations. The compositional analysis for scale samples showed that sample 1 is 100% barium sulfate where sample 2 has 97.75% barium sulfate and 2.25% of quartz. The composition of the developed dissolver has diethylenetriamine pentaacetic acid (DTPA) as a chelating agent, oxalic acid, and tannic acids as an activator, nonionic surfactant, and water as the base fluid. The new dissolver was investigated with extensive lab tests to determine the dissolution efficiency, precipitation tendency for the dissolved scale solids, corrosion rate, and fluid-rock interaction. The obtained successful results indicated that the developed dissolver had a dissolution efficiency for two real barium scale samples as the results showed 76.9 and 71.2% at 35°C and 91.3 and 78.4% at 90°C for samples 1 and 2, respectively. The new solution has a great performance compared with common scale dissolvers in the oil field as hydrochloric acid, ethylenediaminetetraacetic acid, and diethylenetriamine pentaacetic acid. The developed dissolver showed a very low precipitation tendency for the scale dissolved solids (1.9 and 3.2% for samples 1 and 2, respectively) under 35°C for 24 hours. Without any additives of corrosion inhibitors, the corrosion rate was 0.001835 g/cm2 at 6.9 MPa and 100°C for 6 hours. Injecting the developed dissolver for damaged sandstone core sample with barite mud by flooding test showed a return permeability of 115%.
format Article
id doaj-art-ad205e68062d4888987996ceb8cf584d
institution Kabale University
issn 1468-8115
1468-8123
language English
publishDate 2021-01-01
publisher Wiley
record_format Article
series Geofluids
spelling doaj-art-ad205e68062d4888987996ceb8cf584d2025-02-03T06:05:43ZengWileyGeofluids1468-81151468-81232021-01-01202110.1155/2021/55278185527818Barium Sulfate Scale Removal at Low-TemperatureHany Gamal0Saad Al-Afnan1Salaheldin Elkatatny2Mohamed Bahgat3Department of Petroleum Engineering, College of Petroleum & Geosciences, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi ArabiaDepartment of Petroleum Engineering, College of Petroleum & Geosciences, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi ArabiaDepartment of Petroleum Engineering, College of Petroleum & Geosciences, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi ArabiaRosewell Energy Company, 327 El-Horreya Road, Cleopatra, Alexandria 21500, EgyptPrecipitation of the scale in the oil and gas reservoirs, surface and subsurface equipment, and processing and production facilities is a big problem as it affects petroleum production. The scale precipitations decrease the oil and gas production and cause economical loss. Solving this issue requires an engineering investigation to provide a safe, efficient, and economic solution. Consequently, this study proposed a developed dissolver for barium sulfate scales, where two field-scale samples were collected from different locations. The compositional analysis for scale samples showed that sample 1 is 100% barium sulfate where sample 2 has 97.75% barium sulfate and 2.25% of quartz. The composition of the developed dissolver has diethylenetriamine pentaacetic acid (DTPA) as a chelating agent, oxalic acid, and tannic acids as an activator, nonionic surfactant, and water as the base fluid. The new dissolver was investigated with extensive lab tests to determine the dissolution efficiency, precipitation tendency for the dissolved scale solids, corrosion rate, and fluid-rock interaction. The obtained successful results indicated that the developed dissolver had a dissolution efficiency for two real barium scale samples as the results showed 76.9 and 71.2% at 35°C and 91.3 and 78.4% at 90°C for samples 1 and 2, respectively. The new solution has a great performance compared with common scale dissolvers in the oil field as hydrochloric acid, ethylenediaminetetraacetic acid, and diethylenetriamine pentaacetic acid. The developed dissolver showed a very low precipitation tendency for the scale dissolved solids (1.9 and 3.2% for samples 1 and 2, respectively) under 35°C for 24 hours. Without any additives of corrosion inhibitors, the corrosion rate was 0.001835 g/cm2 at 6.9 MPa and 100°C for 6 hours. Injecting the developed dissolver for damaged sandstone core sample with barite mud by flooding test showed a return permeability of 115%.http://dx.doi.org/10.1155/2021/5527818
spellingShingle Hany Gamal
Saad Al-Afnan
Salaheldin Elkatatny
Mohamed Bahgat
Barium Sulfate Scale Removal at Low-Temperature
Geofluids
title Barium Sulfate Scale Removal at Low-Temperature
title_full Barium Sulfate Scale Removal at Low-Temperature
title_fullStr Barium Sulfate Scale Removal at Low-Temperature
title_full_unstemmed Barium Sulfate Scale Removal at Low-Temperature
title_short Barium Sulfate Scale Removal at Low-Temperature
title_sort barium sulfate scale removal at low temperature
url http://dx.doi.org/10.1155/2021/5527818
work_keys_str_mv AT hanygamal bariumsulfatescaleremovalatlowtemperature
AT saadalafnan bariumsulfatescaleremovalatlowtemperature
AT salaheldinelkatatny bariumsulfatescaleremovalatlowtemperature
AT mohamedbahgat bariumsulfatescaleremovalatlowtemperature