Effect of synthetic water-soluble polymers on the properties of the heavy water-based drilling fluid at high pressure-high temperature (HPHT) conditions

Sepehri, Sanam; Soleyman, Rouhollah; Varamesh, Akbar; Valizadeh, Majid; Nasiri, Alireza

doi:10.1016/j.petrol.2018.03.055

Cited by 58 publications

(30 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…) 13,18–21 and synthetic polymers 22–24 is widely used as filtrate reducers of WBDFs. However, the thermal degradation and aging of natural polymers above 150°C make controlling of rheological and filtration properties of WBDFs impossible, especially under high‐temperature and high‐pressure (HTHP) conditions 25–27 . In contrast, synthetic multi‐copolymers have attracted more and more attention due to their excellent performance at HTHP environment compared with natural polymers.…”

Section: Introductionmentioning

confidence: 99%

“…With the petroleum exploration and development gradually growing to the deep formation, complex formation conditions (high‐pressure, high‐temperature, large temperature difference, large pressure difference, and high salinity, etc.) generate enormous challenges to drilling fluids 22,25,32 . Meanwhile, higher requirements are put forward for the performance of chemical treatment agents 30 .…”

Section: Introductionmentioning

confidence: 99%

“…However, the thermal degradation and aging of natural polymers above 150 C make controlling of rheological and filtration properties of WBDFs impossible, especially under high-temperature and high-pressure (HTHP) conditions. [25][26][27] In contrast, synthetic multicopolymers have attracted more and more attention due to their excellent performance at HTHP environment compared with natural polymers. Many studies have shown that multi-copolymers of 2-acrylamide-2-methyl propane sulfonic acid are the most commonly used because of their excellent temperature and salt resistance.…”

Section: Introductionmentioning

confidence: 99%

“…generate enormous challenges to drilling fluids. 22,25,32 Meanwhile, higher requirements are put forward for the performance of chemical treatment agents. 30 In order to improve the resistance to salt and calcium contamination, IA with adjacent dicarboxylic groups and p-styrenesulfonate (SSS) with sulfonic groups were employed as copolymerized functional monomers in this study.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Terpolymer with rigid side chain as filtrate reducer for water‐based drilling fluids

Yang

Liu

et al. 2020

J of Applied Polymer Sci

View full text Add to dashboard Cite

Synthetic copolymers as filtrate reducers for water‐based drilling fluids (WBDFs) are difficult to meet the needs of drilling engineering only by changing the type and proportion of functional groups of copolymers, especially under ultra‐high temperature and high salinity. In this study, an anionic terpolymer (named PSDI) with rigid side chain was synthesized using sodium p‐styrenesulfonate, N, N‐Dimethylacrylamide, and itaconic acid by free‐radical copolymerization. The chemical structure of PSDI was characterized by Fourier transform infrared spectroscopy and 1H‐NMR spectrum. The high‐temperature/high‐pressure filtration loss (FLHTHP) and the American Petroleum Institute filtration loss (FLAPI) of the WBDFs containing 1.5 wt/vol% PSDI were 35.0 and 17.0 ml after thermal rolling at 240°C for 16 h, respectively. The FLHTHP and FLAPI of the WBDFs containing saturated NaCl were with control of 60.0 and 12.0 ml. The FLAPI of WBDFs containing 1.5 wt/vol% CaCl2 reduced to 6.0 ml. Results indicate that the addition of PSDI can improve the anti‐high‐temperature performance and resistance to salt and calcium contamination of WBDFs. Results of rheological tests through fitting four rheological models suggest that rheological parameters can be improved as a result of forming the spatial network structure between the PSDI and bentonite flakes.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Terpolymer with rigid side chain as filtrate reducer for water‐based drilling fluids

Yang

Liu

et al. 2020

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…Thus, one of the greatest and inevitable problems encountered in deep wells and ultradeep wells is that a drilling fluid must endure high temperature. 5 For a drilling fluid to be appropriate for a deep well drilling process, it must meet some functional requirements, such as proper rheology factors [apparent and plastic viscosity (AV and PV), and yield point (YP)], a low fluid loss and good salt tolerance at high temperature and high pressure (HTHP) conditions, which are required by drilling fluid additives. 6,7 It has been well known that bentonite and polymers in most water-based mud systems are responsible for a desired rheological profile.…”

Section: Introductionmentioning

confidence: 99%

Synthetic copolymer (AM/AMPS/DMDAAC/SSS) as rheology modifier and fluid loss additive at HTHP for water‐based drilling fluids

Huang

Zhang

Zheng

2019

J of Applied Polymer Sci

View full text Add to dashboard Cite

In the petroleum industry, high temperature and high pressure (HTHP) would dramatically worsen rheological properties and increase fluid loss volumes of drilling fluids. Synthetic polymer as an indispensable additive has attracted more and more attention recently. In this article, a new copolymer (named AADS) of 2‐acrylamide‐2‐methylpropanesulfonic acid, acrylamide, dimethyl diallyl ammonium chloride, and sodium styrene sulfonate was synthesized through aqueous solution polymerization. The chemical structure of the copolymer was characterized by Fourier transform infrared spectroscopy and nuclear magnetic resonance. Moreover, its thermal stability was simultaneously analyzed using a differential scanning calorimetry. The results showed that the synthetic polymer contained all the designed functional groups, and its structure was consistent to the desired one. Under contamination of sodium chloride, AADS solution maintained relatively high viscosity in high concentration brine, showing a good antisalt capacity. Furthermore, the effect of AADS content and temperature on rheological behavior and fluid loss volume of the water‐based drilling fluid (WBDF) containing the synthesized product were investigated according to the American Petroleum Institute standard. Results showed that the rheological and filtration properties of the prepared WBDF were improved with the increase in the AADS concentration before and after the thermal aging test. In addition, in the temperature range of 80–240 °C, a reversible rheological behavior was observed during the heating–cooling process, and the HTHP fluid loss was controlled within 22.5 mL, suggesting that the copolymer AADS was suitable for making WBDF s with high temperature resistance. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47813.

show abstract

Extreme Pressure Environments

2021

Polymers and Additives in Extreme Environments

View full text Add to dashboard Cite

Effect of synthetic water-soluble polymers on the properties of the heavy water-based drilling fluid at high pressure-high temperature (HPHT) conditions

Cited by 58 publications

References 12 publications

Terpolymer with rigid side chain as filtrate reducer for water‐based drilling fluids

Terpolymer with rigid side chain as filtrate reducer for water‐based drilling fluids

Synthetic copolymer (AM/AMPS/DMDAAC/SSS) as rheology modifier and fluid loss additive at HTHP for water‐based drilling fluids

Extreme Pressure Environments

Contact Info

Product

Resources

About