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Preparation and Performance Evaluation of CO Foam Gel Fracturing Fluid.
Gels
December 2024
Key Laboratory of Unconventional Oil & Gas Development, China University of Petroleum (East China), Ministry of Education, Qingdao 266580, China.
The utilization of CO foam gel fracturing fluid offers several significant advantages, including minimal reservoir damage, reduced water consumption during application, enhanced cleaning efficiency, and additional beneficial properties. However, several current CO foam gel fracturing fluid systems face challenges, such as complex preparation processes and insufficient viscosity, which limit their proppant transport capacity. To address these issues, this work develops a novel CO foam gel fracturing fluid system characterized by simple preparation and robust foam stability.
View Article and Find Full Text PDFApplication of Whisker-Toughened Aerogel to Recycling of Used Polyurethane Sheets.
Gels
December 2024
School of Energy and Building Environment, Guilin University of Aerospace Technology, Guilin 541004, China.
In this study, a new environmentally friendly and efficient method for recycling and reusing waste polyurethane sheets is proposed. SiO aerogel was prepared using the sol-gel method, and mullite whiskers were introduced to enhance its toughness. The whisker-toughened aerogel was used in the degradation of waste polyurethane to produce modified recycled polyol, which was subsequently used to prepare recycled polyurethane foam insulation material.
View Article and Find Full Text PDFCO Foamed Viscoelastic Gel-Based Seawater Fracturing Fluid for High-Temperature Wells.
Gels
November 2024
EXPECR ARC, Saudi Aramco, Dhahran 31311, Saudi Arabia.
This study investigates the development of a novel CO-foamed viscoelastic gel-based fracturing fluid to address the challenges of high-temperature formations. The influence of various parameters, including surfactant type and concentration, gas fraction, shear rate, water salinity, temperature, and pressure, on foam viscosity was systematically explored. Rheological experiments were conducted using a high-pressure/high-temperature (HPHT) rheometer at 150 °C and pressures ranging from 6.
View Article and Find Full Text PDFClinical Utility of Various Formulations of Calcipotriene and Betamethasone Dipropionate for the Treatment of Plaque Psoriasis in Patients Aged 12 Years or Older.
Drug Des Devel Ther
December 2024
Department of Dermatology, Institute of Medical Sciences, Medical College of Rzeszow University, Rzeszów, 35-055, Poland.
Plaque-type psoriasis is a chronic immune-mediated inflammatory skin disease of uncertain etiology, significantly impacting patient well-being. This chronic condition not only contributes to stigmatization and mental health challenges but also poses an independent risk for cardiovascular and other comorbid diseases. Affecting approximately 60 million people globally, psoriasis manifests primarily as mild-to-moderate disease in about 80% of cases, where topical therapy is pivotal.
View Article and Find Full Text PDFTotal gastrectomy with Roux-en-Y esophagojejunostomy is a common surgical treatment for early gastric cancer; however, postoperative complications such as anastomotic leaks remain a serious risk. This report details a 59-year-old female who underwent total gastrectomy with Roux-en-Y esophagojejunostomy for early gastric cancer, followed by percutaneous embolization for esophagojejunal (EJ) anastomotic leakage. Despite initial percutaneous drainage for fluid accumulation at the EJ site, subsequent CT revealed significant anastomotic dehiscence.
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