Results 201 to 210 of about 89,974 (258)
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Effects of a crosslinking agent on a supramolecular gel to control lost circulation
New Journal of Chemistry, 2021The Cr 3+ can improve the cross-linking degree and network density of the GP-A gel, and enhance its strength and plugging ability to control lost circulation.
Bo Wang +4 more
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An Analysis and the Control of Lost Circulation
Journal of Petroleum Technology, 1951Abstract During the drilling of wells, fractures which are created or widened bydrilling fluid pressure are suspected of being a frequent cause of lostcirculation. A study of the variables which are believed by the authors to berelated to fracturing led to the premise that the presence of an effective ...
George C. Howard, P.P. Scott
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Cheaper Cement Formulation for Lost Circulation Control
IADC/SPE Asia Pacific Drilling Technology, 2002Abstract Laboratory experiments had been carried out by using G and special blended cement with various amount and types of standard cement additives, and various amount of local bentonite and sugar cane fiber. The ASTM-C 114 and AAS procedures were used for the chemical analysis and API Spec.
A. Samsuri, B. T. N. Phuong
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Control of Lost Circulation in Fractured Limestone Reservoirs
Proceedings of IADC/SPE Asia Pacific Drilling Technology, 2000Abstract Fractured limestone formations present a great challenge to the Well Engineer in the designing of oil/gas wells. In the upper hole sections it may be acceptable to cure severe lost circulation by judicious use of cement or other non-reversible treatments, but in the case of a fractured reservoir the use of such treatments is not
Eric Davidson +2 more
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Materials for Controlling Severe Lost Circulation - Laboratory Evaluation
SPE Latin America and Caribbean Petroleum Engineering Conference, 2017Abstract Lost circulation is still today one of the most costly problems for oil and gas operators. It may occur into permeable formations, depleted zones, induced or nature fractures and cavernous formations while drilling, cementing or during workover jobs in the well.
C. R. Miranda +6 more
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Particle migration behavior of fractured lost circulation control: Numerical simulation
Physics of Fluids, 2023Fracture loss is the most common type of leakage in petroleum drilling engineering. The existing numerical simulation of the particle transport process is relatively simplified. In order to clarify the dynamic behavior characteristics of bridging particles in fractures, this paper adopts the discrete element and computational fluid dynamics coupling ...
Qinglin Liu +6 more
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A New Water-absorbent Resin for Lost Circulation Control
International Oil and Gas Conference and Exhibition in China, 2010Abstract Eliminating or controlling lost circulation during drilling or cement operations is a costly and time-consuming process. Water-absorbent resins play an important role in mud loss control for their deformability and water-absorbable and expandable properties.
Xiaolin Lai +5 more
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The Opportunity of Drilled Solids Use in Lost Circulation Control
SPE Russian Petroleum Technology Conference, 2019Abstract The design work contains development of the technology of circulation loss control during oil and gas wells drilling. Circulation loss control experience suggests that one of effective loss control methods is loss profiles plugging using inwash of fillers (shredded cellophane, cordage fiber, laminar elastic filler, etc.) In ...
Tatiana Salmina +3 more
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Journal of Petroleum Science and Engineering, 2018
Abstract This paper presents an evaluation method for evaluating the sealing capacity of cement slurry with lost circulation control for effective lost channel sealing during cementing operations. The method was developed based on a lost device and an evaluation model that we developed ourselves.
Yuanguang Yang, Bin Yuan, Yongqing Wang
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Abstract This paper presents an evaluation method for evaluating the sealing capacity of cement slurry with lost circulation control for effective lost channel sealing during cementing operations. The method was developed based on a lost device and an evaluation model that we developed ourselves.
Yuanguang Yang, Bin Yuan, Yongqing Wang
openaire +1 more source