Results 1 to 10 of about 1,405,729 (293)

Estimation of Lost Circulation Amount Occurs During Under Balanced Drilling Using Drilling Data and Neural Network

open access: yesEgyptian Journal of Petroleum, 2017
Lost circulation can cause an increase in time and cost of operation. Pipe sticking, formation damage and uncontrolled flow of oil and gas may be consequences of lost circulation. Dealing with this problem is a key factor to conduct a successful drilling
Pouria Behnoud Far
exaly   +4 more sources

Bridging Performance of New Eco-Friendly Lost Circulation Materials [PDF]

open access: yesPetroleum Exploration and Development, 2018
Lost circulation is one of the most important concerns of the drilling industry, causing excessive expenditure and increasing the non-productive drilling time.
Masood Mostofi   +2 more
exaly   +5 more sources

Smart lost circulation materials for productive zones [PDF]

open access: yesJournal of Petroleum Exploration and Production Technology, 2018
Lost circulation has been a serious problem while drilling that may lead to heavy financial costs in the form of lost rig time and lost mud fluid. In severe cases, it can lead to well blowout with serious environmental hazards and safety consequences ...
Ahmed Mansour   +4 more
doaj   +3 more sources

Research Progress and Prospect of Plugging Technologies for Fractured Formation With Severe Lost Circulation

open access: yesPetroleum Exploration and Development, 2021
By reviewing the mechanisms of drilling fluid lost circulation and its control in fractured formations, the applicability and working mechanisms of different kinds of lost circulation materials in plugging fractured formations have been summarized ...
Yingrui Bai   +2 more
exaly   +3 more sources

Implementing Artificial Neural Networks and Support Vector Machines to Predict Lost Circulation

open access: yesEgyptian Journal of Petroleum, 2019
Lost circulation is one of the major challenges encountered during drilling operations. The events related to the lost circulation can be responsible for losses of hundreds of millions of dollars each year.
Ahmed K Abbas
exaly   +4 more sources

Preparation and Performance Evaluation of a Supramolecular Gel Plugging Agent for Severe Lost Circulation Gas Reservoirs [PDF]

open access: yesGels
The plugging of fractured gas reservoirs with severe lost circulation during oil and gas drilling and production has long been challenged by technical issues such as low plugging strength and short effective duration.
Yingbiao Liu   +7 more
doaj   +2 more sources

Status and Prospect of Drilling Fluid Loss and Lost Circulation Control Technology in Fractured Formation [PDF]

open access: yesGels, 2022
Lost circulation in fractured formation is the first major technical problem that restricts improvements in the quality and efficiency of oil and gas drilling engineering.
Jingbin Yang   +5 more
doaj   +2 more sources

Preparation and Performance of Resin-Gel–Rubber Expandable Lost Circulation Material Blend [PDF]

open access: yesGels, 2023
Aiming at the complex strata, lost circulation often occurs. and lost circulation control becomes a difficult issue. A drilling fluid loss accident delays the drilling progress and even causes major economic losses.
Jinzhi Zhu   +4 more
doaj   +2 more sources

Preparation and Performance Evaluation of a Lost-Circulation-Control Gel for Fractured Formations [PDF]

open access: yesGels
To address the dual challenges of severe lost circulation and wellbore instability in fractured formations, an acrylamide-based lost-circulation-control gel (DF-PG) was synthesized via aqueous-solution free radical polymerization using acrylamide (AM ...
Yundong Zheng   +7 more
doaj   +2 more sources

Lost circulation intensity characterization in drilling operations: Leveraging machine learning and well log data [PDF]

open access: yesHeliyon
Lost circulation is one of the important challenges in drilling operations and bears financial losses and operational risks. The prime causes of lost circulation are related to several geological parameters, especially in problem-prone formations. Herein,
Ahmad Azadivash
doaj   +2 more sources

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