Results 141 to 150 of about 583,413 (370)
Application of numerical simulation in the solid expandable tubular repair for casing damaged wells
Petroleum Exploration and Development, 2009 In order to analyze the stress, strain, and residual stress of the solid expandable tubular (SET) applied in repairing casing damaged wells and to analyze the internal tube changes, the SET finite element model is established by ANSYS; the boundary ...
Xu Binggui +4 more
doaj
Data-driven model for the identification of the rock type at a drilling bit [PDF]
arXiv, 2018 Directional oil well drilling requires high precision of the wellbore positioning inside the productive area. However, due to specifics of engineering design, sensors that explicitly determine the type of the drilled rock are located farther than 15m from the drilling bit.
arxiv
Measuring and Interpreting High-Temperature Shear Strengths of Drilling Fluids [PDF]
, 1953 T.E. Watkins, M.D. Nelson
openalex +1 more source
Testing of Sealing Elements for FIB Apparatus Designed to Liquidate Open Eruption by Drilling Tools [PDF]
, 2018 Petroleum and natural gas still have their place among the most important resources in many industrial areas. Their global consumption influences an increasing demand on the quality of drilling works and the efficiency ...
Bujok, Petr +4 more
core
Harnessing Outer Space for Improved Electrocaloric Cooling
Advanced Functional Materials, EarlyView.A novel radiative heat sink/source‐integrated electrocaloric (R‐iEC) system combines the electrocaloric (EC) effect with a thermally conductive radiative cooler (TCRC) to address heat dissipation limitations in EC devices. Utilizing outer space as a heat sink, the system achieves up to 240 W m−2 of heat dissipation performance, making it highly ...
Dong Hyun Seo +8 more
wiley +1 more source
End-to-End Autoencoder for Drill String Acoustic Communications [PDF]
arXivDrill string communications are important for drilling efficiency and safety. The design of a low latency drill string communication system with high throughput and reliability remains an open challenge. In this paper a deep learning autoencoder (AE) based end-to-end communication system, where transmitter and receiver implemented as feed forward ...
arxiv
Records of wells drilled for oil and gas in Montana [PDF]
, 1952 James David Vine, C.E. Erdmann
openalex +1 more source
Sonochemical Functionalization of Glass
Advanced Functional Materials, EarlyView.A new method for functionalizing glass using ultrasonication of aryl diazonium salts. Aryl radicals generated by ultrasounds react with glass, forming a stable, covalently bonded organic film. The functionalized glass adheres microorganisms such as microalgae, fungi, and bacteria, suggesting potential applications in enzyme production, filtration ...
Tiexin Li +13 more
wiley +1 more source
Drilling hyperbolic groups [PDF]
arXivGiven a hyperbolic group $G$ and a maximal infinite cyclic subgroup $\langle g \rangle$, we define a drilling of $G$ along $g$, which is a relatively hyperbolic group pair $(\widehat{G}, P)$. This is inspired by the well-studied procedure of drilling a hyperbolic 3-manifold along an embedded geodesic.
arxiv
Control of Turnip Flea Beetle by Benzene Hexachloride drilled with the Seed [PDF]
, 1950 H. R. Jameson
openalex +1 more source