Catalytic pyrolysis of oil shale using tailored Cu@zeolite catalyst and molecular dynamic simulation

Jin, Jiafeng; Sun, Jinsheng; Lv, Kaihe; Hou, Qilin; Guo, Xuan; Liu, Kesong; Deng, Yongheng; Song, Lifang

doi:10.1016/j.energy.2023.127858

Cited by 15 publications

(5 citation statements)

References 44 publications

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“…The narrow spectrum of C 1s (Figure a) shows that the C in the sample includes C–C/C–H, C–N/C–S, and CO with binding energies of 284.8, 285.3, and 286.6 eV respectively. The narrow spectrum of O 1s (Figure b) shows that the O in the sample consists of two components, CO with a binding energy of 532.4 eV and −SO 3 H in AMPS with a binding energy of 533.1 eV. , The narrow spectrum of S 2p (Figure c) shows that the S in the sample is derived from −SO 3 H in AMPS with binding energies of 168.4 and 169.6 eV. , The narrow spectrum of N 1s (Figure d) shows that the N in the sample consists of both −CONH and C–N obtained from the amide groups in AMPS and DMAA with binding energies of 400.1 and 400.6 eV, respectively . The above analysis suggests that −CONH, CO, and −SO 3 H may be present in PSDA, suggesting that PSDA is polymerization of St, AMPS, and DMAA.…”

Section: Resultsmentioning

confidence: 99%

“…3b) shows that the O in the sample consists of two components, C�O with a binding energy of 532.4 eV and −SO 3 H in AMPS with a binding energy of 533.1 eV. 26,27 The narrow spectrum of S 2p (Figure 3c) shows that the S in the sample is derived from −SO 3 H in AMPS with binding energies of 168.4 and 169.6 eV. 28,29 The narrow spectrum of N 1s (Figure 3d) shows that the N in the sample consists of both −CONH and C−N obtained from the amide groups in AMPS and DMAA with binding energies of 400.1 and 400.6 eV, respectively.…”

Section: Characterization Of Psda 311 Infrared Spectrum (Ftir)mentioning

confidence: 96%

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Preparation and Evaluation of Nanopolymer Microsphere Plugging Agents for Ultrahigh-Temperature Water-Based Drilling Fluids

Xu,

Sun,

Liu

et al. 2023

Energy Fuels

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With oil and gas drilling going deeper, wellbore instability and high-temperature failure of drilling fluid become more and more serious. Using plugging agents to block micropore and microfracture formation is the key to minimizing filtrate invasion into the formation, stopping pressure transfer, and reducing downhole accidents. At present, the most commonly used plugging agents are hardly able to satisfy the plugging demands of ultrahigh-temperature formation. A high thermoresistant nanopolymer microsphere (PSDA) was prepared by soap-free emulsion polymerization. The study indicated that the starting thermal breakdown temperature of PSDA was 316 °C. At the indoor temperature, the median particle size (D 50 ) was 177 nm. After aging at 240 °C, D 50 reduced to 152 nm. Meanwhile, it can be observed from the scanning electron microscope (SEM) that the particle size of PSDA has little difference before and after high-temperature effect, indicating that PSDA possesses excellent stability against high temperatures. The turbiscan stability index (TSI) values of 3 wt % PSDA suspensions were less than 0.1, which has good dispersion stability. The blocking performance of the PSDA suspension was studied using 100 and 300 nm microporous filter membranes as blocking media. With the addition of PSDA in the drilling fluid, API filtration gradually decreases. When the addition amount was 3 wt %, after aging at 240 °C, the reduction rate of API filtration was 57.6%, and the filter cake formed was dense. At the same time, a great quantity of microspheres on the filter cake surface can be observed in the SEM picture, indicating that PSDA can resist high temperatures at 240 °C and has good filter loss reduction performance. Compared with emulsified bitumen, nanopolyester (NP-1), and silicone sol (JN-40), PSDA has the best filtration reduction performance. PSDA holds promise as an excellent temperature-resistant plugging additive for water-based drilling fluid.

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Section: Resultsmentioning

confidence: 99%

Section: Characterization Of Psda 311 Infrared Spectrum (Ftir)mentioning

confidence: 96%

Preparation and Evaluation of Nanopolymer Microsphere Plugging Agents for Ultrahigh-Temperature Water-Based Drilling Fluids

Xu,

Sun,

Liu

et al. 2023

Energy Fuels

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“…The microscopic morphology of the shale before and after immersion in the modified asphalt solution can reflect the interaction between the shale and the modified asphalt. In this study, the shale was immersed in a 3% modified asphalt solution for 24 h, and then naturally dried in a drying dish for 24 h. Then, the morphology of the shale was observed with SEM after the gold was sprayed on the shale [30].…”

Section: Scanning Electron Microscope (Sem) Analysismentioning

confidence: 99%

Study on the Inhibition Mechanism of Hydration Expansion of Yunnan Gas Shale using Modified Asphalt

Dai,

Sun,

Liu

et al. 2024

Materials

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Drilling fluids play an essential role in shale gas development. It is not possible to scale up the use of water-based drilling fluid in shale gas drilling in Yunnan, China, because conventional inhibitors cannot effectively inhibit the hydration of the illite-rich shale formed. In this study, the inhibition performance of modified asphalt was evaluated using the plugging test, expansion test, shale recovery experiment, and rock compressive strength test. The experimental results show that in a 3% modified asphalt solution, the expansion of shale is reduced by 56.3%, the recovery is as high as 97.8%, water absorption is reduced by 24.3%, and the compression resistance is doubled compared with those in water. Moreover, the modified asphalt can effectively reduce the fluid loss of the drilling fluid. Modified asphalt can form a hydrophobic membrane through a large amount of adsorption on the shale surface, consequently inhibiting shale hydration. Simultaneously, modified asphalt can reduce the entrance of water into the shale through blocking pores, micro-cracks, and cracks and further inhibit the hydration expansion of shale. This demonstrates that modified asphalt will be an ideal choice for drilling shale gas formations in Yunnan through water-based drilling fluids.

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“…The joint response is reported including the pH and temperature co-response, pH and salinity co-response, and temperature and shear co-response. Among these, reversible emulsions with a pH response have attracted research interest in the field of drilling fluids due to the easy control of the reversible phase [ 4 , 5 , 6 , 7 , 8 , 9 , 10 ]. The principle is that by changing the pH value of the emulsion (adding acid or alkali), the hydrophilic lipophilic balance value (HLB value) of the emulsifier is adjusted, so that the emulsion can be transformed between the W/O emulsion and the O/W emulsion.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Properties of Reversible Emulsion Drilling Fluid Stabilized by Modified Nanocrystalline Cellulose

Liu,

Li,

Wang

et al. 2024

Molecules

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Reversible emulsion drilling fluids can concentrate the advantages of water-based drilling fluids and oil-based drilling fluids. Most of the existing reversible emulsion drilling fluid systems are surfactant-based emulsifier systems, which have the disadvantage of poor stability. However, the use of modified nanoparticles as emulsifiers can significantly enhance the stability of reversible emulsion drilling fluids, but ordinary nanoparticles have the disadvantages of high cost and easily causing environmental pollution. In order to solve the shortcomings of the existing reversible emulsion drilling fluid system, the modified nanocrystalline cellulose was considered to be used as an emulsifier to prepare reversible emulsion drilling fluid. After research, the modified nanocrystalline cellulose NWX-3 can be used to prepare reversible emulsions, and on this basis, reversible emulsion drilling fluids can be constructed. Compared with the reversible emulsion drilling fluid stabilized by HRW-DMOB (1.3 vol.% emulsifier), the reversible emulsion drilling fluid stabilized by the emulsifier NWX-3 maintained a good reversible phase performance, filter cake removal, and oily drill cuttings treatment performance with less reuse of emulsifier (0.8 vol.%). In terms of temperature resistance (150 °C) and stability (1000 V < W/O emulsion demulsification voltage), it is significantly better than that of the surfactant system (temperature resistance 120 °C, 600 V < W/O emulsion demulsification voltage < 650 V). The damage of reservoir permeability of different types of drilling fluids was compared by physical simulation, and the damage order of core gas permeability was clarified: water-based drilling fluid > reversible emulsion drilling fluid > oil-based drilling fluid. Furthermore, the NMR states of different types of drilling fluids were compared as working fluids, and the main cause of core permeability damage was the retention of intrusive fluids in the core.

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Catalytic pyrolysis of oil shale using tailored Cu@zeolite catalyst and molecular dynamic simulation

Cited by 15 publications

References 44 publications

Preparation and Evaluation of Nanopolymer Microsphere Plugging Agents for Ultrahigh-Temperature Water-Based Drilling Fluids

Preparation and Evaluation of Nanopolymer Microsphere Plugging Agents for Ultrahigh-Temperature Water-Based Drilling Fluids

Study on the Inhibition Mechanism of Hydration Expansion of Yunnan Gas Shale using Modified Asphalt

Preparation and Properties of Reversible Emulsion Drilling Fluid Stabilized by Modified Nanocrystalline Cellulose

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