Results 11 to 20 of about 1,405,729 (293)
Mathematical Simulation of Lost Circulation in Fracture and Its Control
Geofluids, 2021 Lost circulation has been one of the major problems that impede efficient and cost-saving drilling operations. The nature of lost circulation and its control is not yet fully understood.
Xiao Cai +3 more
doaj +2 more sources
Real-time lost circulation estimation and mitigation
Egyptian Journal of Petroleum, 2018 Lost circulation is a challenging problem particularly in the Dammam formation of the Rumaila field, Iraq. Drilling engineers are challenged to select the optimum value for key drilling parameters such as equivalent circulation density (ECD), yield point
Abo Taleb T. Al-Hameedi +4 more
doaj +2 more sources
Journal of Cardiac Surgery, 2020 Device complications in complex percutaneous coronary interventions are rare but potentially deadly. Surgical removal is often required. However, an evaluation of surgical therapy beyond case reports is practically not existent.We prospectively followed all cases of retained guide wires and/or other devices referred to us for surgical removal between ...
Hristo Kirov +5 more
openaire +2 more sources
Experimental Study to Investigate the Effect of Polyacrylamide Gel to Reduce the Lost Circulation
Iraqi Journal of Chemical and Petroleum Engineering, 2023 One of the challenging issues encountered during drilling operations is the lost circulation. Numerous issues might arise because of losses, such as wasting of time and higher drilling cost.
Ali K. Al-Delfi +3 more
doaj +1 more source
Influence of Migration and Plugging of Nanoparticles on Coal Permeability in Coal Reservoirs
Geofluids, 2021 The plugging of nanopores in low-permeability coal reservoirs is an important factor that affects productivity reduction. However, the mechanism of plugging of the nanopores in coal reservoirs remains unclear.
Xiaopeng Zhai +9 more
doaj +1 more source
Petroleum, 2022 Working fluids loss is a major contributor to low productivity during production process of fractured tight reservoirs. Lost circulation control effect directly related to the tribological behavior between fracture surface and lost circulation materials (
Chengyuan Xu +6 more
doaj +1 more source
Gels, 2022 With the development of oil exploration, the number of complex situations encountered in the drilling process is continuously increasing. During the operation of large displacement and horizontal wells, the safe density window of drilling fluid is narrow
Junwei Fang +5 more
doaj +1 more source
Performance Evaluation Of The New Natural And Environmentally Friendly Material For Lost Circulation Control At High Pressure And Hight Temperature [PDF]
, 2023 Lost circulation refers to the loss of a part or whole drilling fluid into the formation and is considered as one of the most challenges in drilling operations. It could be occurred either naturally in highly fractured formations or induced by excessive
Ayad A. A.Alrazzaq +2 more
core +1 more source
Context and mitigation of lost circulation during geothermal drilling in diverse geologic settings [PDF]
, 2023 Lost circulation is one of the most common and expensive problems facing geothermal energy development, representing up to 30% of drilling costs. We examined drilling records from four geothermal fields—McGinness Hills in central Nevada, Don A.
Delwiche, Ben +8 more
core +1 more source
Application of new eco-friendly LCMs for combating the lost circulation in heavy-weight and oil-based mud. [PDF]
RSC Adv, 2018 This study investigates the effectiveness of different lost circulation materials (LCMs) in controlling the lost circulation of heavy-weight and oil-based mud.
Nasiri A +2 more
europepmc +2 more sources