油田开发过程中产生的无机垢会影响生产开发,导致油田效益下降。针对海上C油田地层条件,通过室内实验与模拟相结合明确无机垢的组成及井下形成位置。之后采用γ-聚谷氨酸等制备中性超分子除垢剂,使用Materials Studio 2020软件分析并明...油田开发过程中产生的无机垢会影响生产开发,导致油田效益下降。针对海上C油田地层条件,通过室内实验与模拟相结合明确无机垢的组成及井下形成位置。之后采用γ-聚谷氨酸等制备中性超分子除垢剂,使用Materials Studio 2020软件分析并明确超分子体系的自组装过程,并对比评价其与传统酸性除垢剂的除垢效果及体系适用范围。最后,通过密度泛函理论(DFT)进行分子模拟,并结合室内实验结果研究分析超分子体系对无机垢的去除机理。结果表明,区块典型井主要在水平井井底生成碳酸钙/镁和碳酸亚铁垢,自制超分子除垢剂对碳酸钙垢、硫酸钙垢和模拟垢的除垢率分别为74.2%、45.1%和65.8%,均明显高于常规除垢剂,且体系可将岩心注入压力恢复12%。超分子除垢剂最佳使用温度为40~90℃,作用时间为12 h。动力学模拟分析认为,虽然空间位阻一定程度影响了超分子体系对离子的吸附,但由于分子间相互作用力更大,超分子体系更容易螯合结垢离子。机理研究表明,体系是通过超分子配位除垢作用、超分子聚集作用和渗透作用的协同进行除垢,具有良好的应用前景。展开更多
A new photoluminescence supramolecular compound [Cu(HIm)(PPh3)2I] was synthesized and characterized by single crystal X-ray diffraction, elemental analysis, as well as IR, UV-Vis absorption and luminescence spectromet...A new photoluminescence supramolecular compound [Cu(HIm)(PPh3)2I] was synthesized and characterized by single crystal X-ray diffraction, elemental analysis, as well as IR, UV-Vis absorption and luminescence spectrometry. It crystallizes in monoclinic system, space group P21/n with a=1.333 5(14) nm, b=1.310 3(9) nm, c=2.154 4(16) nm, α=90.00°, β=101.130(10)°, γ=90.00°, V=3.694(5) nm3, Z=4, Dc=1.408 Mg·m-3. The single crystal structure indicates that the 2D supramolecular network structure is established by intermolecular weak N-H...I and C-H...I hydrogen-bonding interactions. The N-H...I is responsible for the conformation of one-dimensional zigzag chains and the C-H...I connects these chains to form two-dimensional supramolecular hydrogen-bonding network. At room temperature in the solid state, the complex is photoluminescent with an emission peak maximum at 460 nm, upon excitation at 330 nm. The emission is assigned to the metal-perturbed intraligand (PPh3) in nature. CCDC: 228743.展开更多
Eu(Ⅲ) complexes with bipyO2 ligand were intercalated into the interlayer spacing of montmorillonite (MMT) by solid-solid ion exchanging and coordination reaction of bipyO2 with the Eu3+ ion existing in the interlayer...Eu(Ⅲ) complexes with bipyO2 ligand were intercalated into the interlayer spacing of montmorillonite (MMT) by solid-solid ion exchanging and coordination reaction of bipyO2 with the Eu3+ ion existing in the interlayer spacing of Eu-MMT at room temperature, respectively. The obtained luminescent supramolecular composite materials, Eu(bipyO2)4Cl2+-MMT and Eu(bipyO2)43+-MMT were characterized by elemental analysis, XRD and FTIR spectroscopy. At the same time, the luminescent properties of the materials were also studied. The results show that the intercalation assembly materials have regular layered structures and good luminescent properties. They emit characteristic red emissions of Eu3+ strongly under ultraviolet light excitation. The relative luminescence intensities of the unit mass of Eu3+ of intercalation assemblies are much better than that of the corresponding pure Eu3+ complex possibly due to the rigid layered structures of the materials and the supramolecular interaction between the host layers and the guest complex ions.展开更多
基于乳液聚合物和微球的分子设计,采用反相乳液聚合工艺研制了一种稳定有效的超分子乳液聚合物-微球组合调驱体系;对乳液聚合物水解度、分子量进行了优化,并对组合调驱体系的静态性能、动态性能、封堵性能及驱油效果进行了评价。结果表...基于乳液聚合物和微球的分子设计,采用反相乳液聚合工艺研制了一种稳定有效的超分子乳液聚合物-微球组合调驱体系;对乳液聚合物水解度、分子量进行了优化,并对组合调驱体系的静态性能、动态性能、封堵性能及驱油效果进行了评价。结果表明,该组合调驱体系的黏度较单一乳液聚合物大幅提升,能有效解决当前调驱体系在深部高渗条带封堵能力不足的问题。渤海油田C区块应用表明,措施井组单井含水率从92%降至79%,日产油量从19 m 3·d^(-1)升至42 m 3·d^(-1),增油超过6000 m 3。为海上中、高含水油田稳油控水提供了一种有效的解决思路,可在现场推广应用。展开更多
文摘油田开发过程中产生的无机垢会影响生产开发,导致油田效益下降。针对海上C油田地层条件,通过室内实验与模拟相结合明确无机垢的组成及井下形成位置。之后采用γ-聚谷氨酸等制备中性超分子除垢剂,使用Materials Studio 2020软件分析并明确超分子体系的自组装过程,并对比评价其与传统酸性除垢剂的除垢效果及体系适用范围。最后,通过密度泛函理论(DFT)进行分子模拟,并结合室内实验结果研究分析超分子体系对无机垢的去除机理。结果表明,区块典型井主要在水平井井底生成碳酸钙/镁和碳酸亚铁垢,自制超分子除垢剂对碳酸钙垢、硫酸钙垢和模拟垢的除垢率分别为74.2%、45.1%和65.8%,均明显高于常规除垢剂,且体系可将岩心注入压力恢复12%。超分子除垢剂最佳使用温度为40~90℃,作用时间为12 h。动力学模拟分析认为,虽然空间位阻一定程度影响了超分子体系对离子的吸附,但由于分子间相互作用力更大,超分子体系更容易螯合结垢离子。机理研究表明,体系是通过超分子配位除垢作用、超分子聚集作用和渗透作用的协同进行除垢,具有良好的应用前景。
文摘A new photoluminescence supramolecular compound [Cu(HIm)(PPh3)2I] was synthesized and characterized by single crystal X-ray diffraction, elemental analysis, as well as IR, UV-Vis absorption and luminescence spectrometry. It crystallizes in monoclinic system, space group P21/n with a=1.333 5(14) nm, b=1.310 3(9) nm, c=2.154 4(16) nm, α=90.00°, β=101.130(10)°, γ=90.00°, V=3.694(5) nm3, Z=4, Dc=1.408 Mg·m-3. The single crystal structure indicates that the 2D supramolecular network structure is established by intermolecular weak N-H...I and C-H...I hydrogen-bonding interactions. The N-H...I is responsible for the conformation of one-dimensional zigzag chains and the C-H...I connects these chains to form two-dimensional supramolecular hydrogen-bonding network. At room temperature in the solid state, the complex is photoluminescent with an emission peak maximum at 460 nm, upon excitation at 330 nm. The emission is assigned to the metal-perturbed intraligand (PPh3) in nature. CCDC: 228743.
文摘Eu(Ⅲ) complexes with bipyO2 ligand were intercalated into the interlayer spacing of montmorillonite (MMT) by solid-solid ion exchanging and coordination reaction of bipyO2 with the Eu3+ ion existing in the interlayer spacing of Eu-MMT at room temperature, respectively. The obtained luminescent supramolecular composite materials, Eu(bipyO2)4Cl2+-MMT and Eu(bipyO2)43+-MMT were characterized by elemental analysis, XRD and FTIR spectroscopy. At the same time, the luminescent properties of the materials were also studied. The results show that the intercalation assembly materials have regular layered structures and good luminescent properties. They emit characteristic red emissions of Eu3+ strongly under ultraviolet light excitation. The relative luminescence intensities of the unit mass of Eu3+ of intercalation assemblies are much better than that of the corresponding pure Eu3+ complex possibly due to the rigid layered structures of the materials and the supramolecular interaction between the host layers and the guest complex ions.
文摘基于乳液聚合物和微球的分子设计,采用反相乳液聚合工艺研制了一种稳定有效的超分子乳液聚合物-微球组合调驱体系;对乳液聚合物水解度、分子量进行了优化,并对组合调驱体系的静态性能、动态性能、封堵性能及驱油效果进行了评价。结果表明,该组合调驱体系的黏度较单一乳液聚合物大幅提升,能有效解决当前调驱体系在深部高渗条带封堵能力不足的问题。渤海油田C区块应用表明,措施井组单井含水率从92%降至79%,日产油量从19 m 3·d^(-1)升至42 m 3·d^(-1),增油超过6000 m 3。为海上中、高含水油田稳油控水提供了一种有效的解决思路,可在现场推广应用。
