Results 21 to 30 of about 1,405,729 (293)
Experimental Study, Characterization and Application of Starch-Graft-Acrylamide Gel for Plugging
Medžiagotyra, 2018 During underbalance drilling, completion and workover wells, plugging channeling, blocking preformation and plugging formation water are inevitable problems. Gel is one of the most effective and convenient method to solve the problem.
Zhen LI +6 more
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An experimental evaluation method of drilling fluid lost control efficiency considering loss types
Frontiers in Physics, 2023 There are serious drilling fluid loss problems in fractured reservoirs during drilling and completion. Indoor evaluation of the drilling fluid lost control effect is an important basis for on-site plugging formula design, but there are some problems in ...
Jingyi Zhang +7 more
doaj +1 more source
Journal of Petroleum Exploration and Production Technology, 2018 Lost circulation materials (LCMs) are added to drilling fluids to mitigate lost circulation (LOC) problems. Designing the fluid requires a good understanding of sealing mechanisms and all the parameters affecting the sealing performance.
Montri Jeennakorn +4 more
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Mud loss estimation using machine learning approach
Journal of Petroleum Exploration and Production Technology, 2018 Lost circulation costs are a significant expense in drilling oil and gas wells. Drilling anywhere in the Rumaila field, one the world’s largest oilfields, requires penetrating the Dammam formation, which is notorious for lost circulation issues and thus ...
Abo Taleb T. Al-Hameedi +6 more
doaj +1 more source
Lost Circulation Experience in Geothermal Wells [PDF]
, 1981 Lost circulation during drilling and cementing in geothermal wells is a problem common to most geothermal areas. Material and rig time costs due to lost circulation often represent one fourth or more of the total well cost.
Goodman, M. A.
core +1 more source
Research on conversion time between lost circulation and overflow for the fractured stratum
Petroleum, 2020 A new model was established based on the flow model of the drilling fluid in one-dimensional radial fracture to research the influencing factors on conversion time between lost circulation and overflow for multi-pressure system in fractured reservoirs ...
Rongguo Nie +3 more
doaj +1 more source
Lost circulation pattern in the vug-fractured limestone formation
Energy Reports, 2023 Due to numerous leakage zones, such as vugs, fractures, and caves appearing in carbonate rocks, lost circulation, the main issue, restricts safe and effective drilling.
Huiwen Pang +5 more
doaj +1 more source
Modelo matemático para determinar presión permitida de pérdidas de filtrado de lodo controladas
Revista Fuentes El Reventón Energético, 2018 During a drilling, it is very important to have a stability window as accurate as possible to avoid problems such as collapse of the well, loss of circulation or filtration, among others.
Darwin Clemente Mateus Tarazona +2 more
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A self-breaking supramolecular plugging system as lost circulation material in oilfield
Open Chemistry, 2020 Lost circulation is a frequently encountered problem during workover operations of a low-pressure reservoir. Many lost circulation materials (LCM) have been used to solve the problem, but various disadvantages still exist, for example, oil-soluble ...
Zhang Hanshi, Jiang Guancheng
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LOST-CIRCULATION CONTROL WITH USING AERATED LIQUIDS [PDF]
, 2016 In article are given materials on lost-circulation control with using aerated drill fluids. Depending on type source of washing fluid were studied conditions of aerated liquid and reduce hydrostatic pressure to permeable zone.In article are given ...
Egamberdiyev B. Sh. +4 more
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