JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
·
2023
·
IF 2.2
Yuanzhi Qu,Wenchao Zhang,Han Ren,YueHui Yuan,Xinyu Zhou,Gang Yang,Xianfa Zhang
Deep oil and gas are essential alternative resources for future energy sources, but the lack of high temperature and high salt resistance mechanisms and agents significantly limits their development. Copolymers of six commonly used high-temperature and salt resistance monomers and acrylamide with similar molecular weights were prepared to improve oil recovery in deep reservoirs. The effects of different functional groups on the high-temperature and salt resistance of polymers were revealed by the drilling fluid and elemental analysis, TOC test, Zeta potential, particle size, and other analytical methods. Experimental results indicate that the pyrrole ring groups, quaternary amine groups, long-chain sulfonate groups, and benzenesulfonic acid groups can effectively improve the high-temperature stability of polymers in an aqueous solution. Quaternary ammonium groups and pyrrole rings can enhance the polymer adsorption with clay under high temperatures and high salinity conditions due to charge attraction. However, these functional groups hinder the clay dispersion and reduce the stability of drilling fluids. Hydration groups, such as sulfonic and carboxylic acid groups, can better maintain the colloidal stability of drilling fluids under high temperatures and high salinity, and benzene sulfonic acid groups are the optimal hydration groups. After the polymer is adsorbed on the clay surface, the benzene sulfonic acid group assists in forming a thicker hydration film on the clay surface, effectively hindering the damage of high temperature and high salinity on the clay. The findings and observations of this study provide theoretical support for the development of high-temperature and salt resistance polymers for water-based drilling fluids of ultra-deep wells.
研究领域:
石油工程
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Yuzhe Cao,Zhijun Zhou,Tongyu Zhang,Zejuan Ni,Bo Ge,Hao Zhang,Guina Ren,Xin Shao,Zhaozhu Zhang
The limitations of a single-function solar-driven interfacial evaporation device applied to unpurified water (brine and wastewater) with a complex composition have been exposed. Herein, a solar-driven photothermal evaporation device with the nature of salt-resistance as well as removal of Rh B remaining and oil slicks in bulk water is established through a novel design, with the aim of breaking the current limitations. Concretely, the oil slicks (toluene and cyclohexane) and residual Rh B in bulk water are eliminated by the superhydrophobic part of the device, which makes it possible to protect the device and the environment from the negative effects of oil slicks and the enrichment of dyes. Furthermore, the purification efficiency of the device is above 99.9 % for heavy metal ions and 99.9 % for Rh B solution. Then, the device shows evaporation rates of 2.81 kg·m −2 ·h −1 (deionized water), 2.77 kg·m −2 ·h −1 (3.5 wt% NaCl solution), and 2.60 kg·m −2 ·h −1 (10 wt% NaCl solution) under one sun illumination in different water sources. Meanwhile, the salt-resistance mechanism of the device is the passive transport of salt solution with high concentration between the bulk water and the evaporation surface, which is ascertained through the salt flow being observed in bulk water. A great potential is revealed in the device in desalination and wastewater purification.
研究领域:
环境科学
·
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Omega
·
2025
·
IF 4.3
Bo Wang,Shengli Gong,Changlin Shi,Peng Hao,Yan Cheng,Baolu Li,Daoxiong Li
As global oil and gas exploration gradually shifts toward deeper and ultradeep reservoirs, the performance of fluid loss control additives in high-temperature and high-salinity environments faces significant challenges. In this study, a fluid loss control agent, DMAPAN, suitable for high-temperature and high-salinity conditions, was synthesized using N,N-dimethylacrylamide (NNDMA), 2-acrylamido-2-methylpropanesulfonic acid (AMPS), maleic anhydride (MA), and N-vinylpyrrolidone (NVP) as monomers via aqueous solution polymerization. Structural characterization and performance testing showed that DMAPAN exhibits good thermal stability and significantly reduces fluid loss at 230 °C. It also demonstrates excellent resistance to high temperature and high salinity, being able to withstand 20% NaCl and 2% CaCl2. Mechanistic analysis reveals that DMAPAN reduces the clay particle size, forms a spatial network structure, and enhances the Zeta potential, thereby improving the stability of the drilling fluid and reducing fluid loss. This study provides theoretical support and practical guidance for optimizing the performance of deep-well drilling fluids.
研究领域:
石油工程
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Can Liu,Xinru Li,Haojie Ge,Xiaoping Yu,Yafei Guo,Tianlong Deng
The extreme pH and complex composition of radioactive wastewater pose great challenges to the chemical stability and properties of adsorbents. Herein, three kinds of metal-doped tin sulfides were developed by a simple one-pot method for cesium removal. DFT calculations combined with experiments were conducted to reveal their structures, stability, and adsorption properties. It was found that the crystal structures of tin sulfide became more stable after doping by Ni and Al. Particularly, the Al-doped material (NAlSS) exhibited the highest stability and adsorption performance because of the highest −COHP value of the Sn-S bond in NAlSS and the low binding energy between NAlSS and Cs + . The industrial application of the powdery NAlSS was further solved by wet spinning using glutaraldehyde cross-linked sodium alginate and hydroxyethyl cellulose (SHG) as the supporters. The obtained salt-resistant hydrogel fibers (SHG-NAlSS) exhibited excellent adsorption performance and stability in wide pH (2 ∼ 12) and temperature (298.15 ∼ 328.15 K) ranges. The maximum adsorption capacity reached 401.34 mg·g −1 within 10 min. The material was successfully applied for Cs + removal from wastewater, and the distribution coefficient of Cs + reached 255020.33 mL·g −1 . After 10 adsorption–desorption cycles, the adsorbent maintained good stability. These results, along with the fixed-bed adsorption, demonstrate that the developed material can be used as a candidate for Cs + removal from radioactive wastewater.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
·
2025
·
IF 1.9
Xinyu Zhou,Shaocong Pang,Luo Zhao,Yuxiu An
The continuous depletion of shallow oil and gas reserves, the exploration focus has shifted to deeper geological formations. This transition has led to significantly higher demands on the lubricity of drilling fluids. Traditional lubricants, which often contain harmful elements, are increasingly facing regulatory restrictions due to environmental and safety concerns. Consequently, the development of new, environmentally friendly lubricants has emerged as a prominent area of research in the oil and gas industry. In this study, choline chloride and 1,3-butanediol were selected as raw materials to synthesize a deep eutectic solvent, designated as HTG-1, which serves as a novel environmentally friendly drilling fluid lubricant. A series of experimental tests were carried out to comprehensively evaluate the performance of HTG-1. At temperatures below 180 °C, HTG-1 demonstrated a remarkable enhancement in the lubricating properties of both drilling fluids and filter cakes. The adhesion coefficient was effectively maintained within the range of 0.1, resulting in a reduction rate exceeding 50%. As the concentration of HTG-1 increased, the filter cakes consistently maintained a low adhesion coefficient, ranging from 0.0761 to 0.1157 at 160 °C and from 0.0642 to 0.1053 at 180 °C. Moreover, it exhibited higher reduction rate values, indicating its superior performance in reducing friction and enhancing overall drilling efficiency. HTG-1 exhibited remarkable salt resistance. The lubricating mechanism of HTG-1 involves the adsorption of choline chloride and the formation of numerous hydrogen bonds. This mechanism contributes to its excellent lubricating properties and ability to reduce friction in drilling operations.
研究领域:
石油工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Xu Zhang,Haibing Cong,Liang Ma,Bing Xu,Xinyu Zhang
Solar thermal desalination (STD), as a type of eco-friendly desalination and water purification technology is instrumental in mitigating the issue of water scarcity globally. Nevertheless, technology challenges persist for accomplishing a multi-purpose, high evaporation rate combine with low-cost and durability. In this research, we glean inspiration from marine jellyfish to propose a novel design for a solar evaporation device that is low-cost, easy to deployment and high efficiency. The evaporator incorporated carbon black for broad spectrum solar absorption, pristine cotton textile capillary action could maintain a sufficient water provision for continuous steam generating. Notably, the zwitterionic hydrogel exhibited excellent salt resistance and water activation properties, promoting water evaporation and enhancing the long-term stability of the evaporator effectively. Under one solar irradiance of 1 kW m −2 , the evaporator raised an outstanding evaporation rate of 2.158 kg m -2 h −1 and the energy efficiency was 88.71 %. Besides, it demonstrated broad applicability in purifying complex contaminated water sources and could obtain clean water from them. It was anticipated that this evaporator could be an effective solution for alleviating water source shortage especially for economically stressed regions. This research provided novel insights and potential applications for the expansion of STD technology in areas such as renewable energy utilization, off-grid desalination and waste water treatment. Furthermore, it offered guidance and inspiration for future in-depth research of the water-energy-climate nexus.
研究领域:
材料科学
·
环境科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
MACROMOLECULAR RESEARCH
·
2022
·Vol. 30
·期 8
·579-586
·
IF 2.127
Deng Bo,Luo Xueqin,Jiang Feng,Liu Wei,Gu Jianwei,Liu Chao,Song Yanan
In the petroleum industry, water-soluble polymers can be used as oil displacement agents. However, the use of water-soluble polymers is limited because of poor temperature and salt resistance. To improve temperature and salt resistance, a weakly cationic polymer with large side groups (PAM/AMPS/VI) was prepared by copolymerizing acrylamide (AM) with 2-acrylamido-2-methylpropane sulfonic acid (AMPS) and 1-vinylimidazole (VI). The viscosity of PAM/AMPS/VI water solutions can be increased more than 20 mPa·s compared with PAM/AMPS. In addition, the viscosity of the solution increased continuously after aging at 80 °C, showing good temperature and salt stability. The protonated tertiary amine in the imidazole ring electrostatically interacts with the sulfonic group, increasing the viscosity and salt resistance of the polymer. The five-membered ring of imidazole also enhances the rigidity of the polymer chain and improves the temperature tolerance. As a confirm of the result, a complete spatial network of PAM/AMPS/VI was observed in scanning electron microscopy (SEM) micrographs. Using weak cationic polymers with large side groups can provide a reference for the design of new temperature tolerance and salt resistant polymer.
研究领域:
石油工程
·
高分子化学
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
He Zhang,Xiaoke Li,Xiyuan Liu,Yuping Du,Wei Xie,Size Zheng,Liu Yang,Jinwen Shi,Dengwei Jing
Solar-driven interfacial evaporation desalination has emerged as a promising strategy for alleviating the water scarcity crisis. However, the design of evaporators with excellent heat management and minimal heat loss to achieve high-efficiency clean water production remains a crucial challenge. Herein, inspired by the transpiration of mushrooms in nature, we demonstrated a bionic-structured hydrogel evaporator, fabricated with biomass lotus root starch (LR), polyvinyl alcohol (PVA), and ink-modified carbon quantum dots and TiO 2 (i-CQDs-TiO 2 ). The evaporated water can be instantly replenished during evaporation through the internal water circulation of the “stipe”, and the special structural design reduces the transfer of heat to the water. Therefore, the evaporator demonstrates excellent performance, with a pure water evaporation rate of up to 3.78 kg·m −2 ·h −1 and an efficiency of 98% (1 kW·m −2 ). More importantly, the evaporator has excellent salt resistance with an average evaporation rate of 3.49 kg·m −2 ·h −1 in 1–25 wt% brine. In addition, without salt scaling on the evaporation surface in 10 wt% brine for continuous 5 h of illumination. Furthermore, due to the coordinated photocatalysis of i-CQDs and TiO 2 , the catalytic degradation rates of TB and CR were up to 91.8% and 88.9%, respectively. With an efficient and stable desalination capacity, this solar evaporator with a bionic design offers a new pathway for sustainable solar desalination.
研究领域:
材料科学
·
环境科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale
·
2022
·Vol. 14
·期 16
·6066-6074
·
IF 8.307
Shuqian Zhang,Han Wei,Zhijian Zhang,Jianzhong Zhang,Hua Bao,Wang Zhang
In recent years, solar steam generation has been one of the most promising and sustainable techniques for water desalination. However, the heat loss to bulk water dramatically decreases the evaporation rate. Besides, salt deposition on the evaporation surface during brine treatment limits the long-term operation of evaporators. Herein, solar evaporators with a horizontal channel-like framework are reported and high efficiency and outstanding salt resistance are achieved. Firstly, eggplants with a hollow fiber alignment structure were carbonized as CEP evaporators. The CEP-H evaporator with a horizontal fiber growth direction shows a high evaporation efficiency of 90.6% and excellent salt resistance when treating high-salinity brine (20 wt%). The low thermal conductivity perpendicular to the fiber growth direction impedes the conductive heat transfer into bulk water, and fast water transport along the fiber growth direction is beneficial for salt resistance. In addition, a proof-of-concept evaporator polypyrrole-coated polypropylene hollow fiber membrane with a horizontal channel-like framework (PPy/PP-H) has also been developed. This hollow fiber membrane shows a high evaporation rate of 1.64 kg m−2 h−1 due to multiangle evaporation and also demonstrates excellent salt-resisting performance for high-salinity brine treatment (20 wt%). The study demonstrates the effect of the horizontal channel-like framework for high evaporation performance and salt resistance, providing new insights into the solar evaporator design for seawater desalination and wastewater treatment.
研究领域:
材料科学
·
环境工程
✓ 已验证
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2023
·
IF 6
Xiangyu Wang,Mingwei Zhao,Xuhao Wang,Zizhao Wang,Mengyao Fan,Xuguang Song,Zhenfeng Ma,Yiming Zhang,Caili Dai
Crude oil remains the predominant energy source today. Clean fracturing fluids (CFFs) have great potential to overcome the challenges of unconventional oil reservoir development due to their integrated fracturing-oil expulsion characteristics. The performance of CFFs is closely related to oil production. In this work, a novel β-cyclodextrin (β-CD)-based supramolecular deep eutectic solvent (SDES) was developed as a promising enhancer for CFF performance. The SDES facilitates the formation of high-strength micelle networks through hydrogen bonds and host–guest interactions to significantly improve the rheological properties, temperature resistance and drag reduction performances of CFFs. The ion–dipole interactions between SDES components and salt cations restrain micelle disassembly, thereby enabling remarkable resistance of CFFs to salt. SDES could further increase the imbibition efficiency to 45.4 % in 62 h because of its interface activity. SDES also endowed CFF with superior gel breaking performance and reusability. Moreover, SDES hardly resulted in the reduction of reservoir permeability. The β-CD in SDES further enhanced the interactions between compounds in CFFs, making it a more effective option compared with traditional DES. This work demonstrates the substantial potential of SDES as a new and green medium for improving the CFF performance, offering promising prospects for the industry.
研究领域:
石油工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2025
·
IF 5.2
Xiujun Wang,Zhe Sun,Jian Zhang,Shenwen Fang,Jiaqi Huang
Polymer microspheres have been used in the field of heterogeneous reservoir profile control, but their temperature and salt resistance still need to be improved. In this paper, N’N-dimethylacrylamide (DMA) and sodium styrene sulfonate (NaSS) were used as monomers, divinylbenzene (DVB) was used as cross-linker, and inverse emulsion polymerization was adopted to preparation the ultra-high temperature resistant polymer microsphere. After the investigation of the influences of emulsification shear time, monomer concentration, mass ratio of DMA to NaSS, and DVB addition on the polymerization result, a kind of polymer microspheres (PNS microspheres) that could maintain long-term stability in different brines (including seawater) at 150 °C for 45 days was prepared. The temperature and salt resistance of PNS microspheres are significantly better than that of polyacrylamide microspheres. The size of PNS microspheres is about 30 μm, and they can expand by about 2–4 times in low salinity brine at 150 °C, while they do not expand in seawater. Plugging effect experiment results showed that PNS microspheres can achieve a plugging rate of over 90 % for porous media with a water permeability ≤ 600 mD. T 2 spectrum of PNS microsphere displacement effect presented that it can effectively block the large pore throats and achieve micro fluid flow diversion, while oil displacement effect showed it can improve oil recovery of about 20 %. This work provides a viable candidate material expected to be applied for profile control in offshore high-temperature heterogeneous reservoirs.
研究领域:
石油工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ENERGY & FUELS
·
2023
·
IF 5.3
Daqi Li,Shaocong Pang,Yang Xuan,Yuxiu An
When the well bottom temperature rises owing to increased well depth and formation complexity, the inadequacies of naturally modified polymeric fluid loss agents were revealed one by one, and synthetic polymeric fluid loss agents emerged as the essential technology to handle these problems. Nanomaterials were gradually being employed to increase the performance of polymeric fluid loss agents. Through free radical polymerization of amide polymers with silica nanoparticles in aqueous solution, a novel nano-graft copolymer (AAN-g-SiO2) was prepared for usage as a water-based drilling fluid loss agent. Fourier transform infrared spectroscopy and thermogravimetric analyses were used to investigate the structural characteristics and thermal stability of the polymer chains. Then, 4% bentonite freshwater-based mud and different concentrations of NaCl/CaCl2-based mud were prepared and added to the fluid loss agent AAN-g-SiO2. Moreover, high-temperature aging was carried out, and the API filtration volume of base mud and rheological characteristics were assessed. The fluid loss agent was demonstrated to withstand a high temperature of 220 °C, with the freshwater-based mud filtration volume at this temperature being 13.25 mL. Also, at 180 °C, AAN-g-SiO2 could be resistant to calcium and salt. Finally, we addressed the mechanism of AAN-g-SiO2 filtration using scanning electron microscopy and zeta potential distribution. The results showed that the inclusion of AAN-g-SiO2 may increase the stability of the drilling fluid system, resulting in the production of a thin and dense filter cake with no folds or pores visible at the microscopic level.
研究领域:
材料科学
·
石油工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）