Results 91 to 100 of about 33,013 (110)

Downhole temperature in ODP Hole 157-956A

, 2005
Downhole temperature in ODP Hole 157 ...
Schmincke, Hans-Ulrich, Shipboard Scientific Party, Philip PE Weaver (6961163), Shipboard Scientific Party (6886568), Weaver, Philip PE, Hans-Ulrich Schmincke (6959507)   +5 more
core   +1 more source

A comprehensive risk assessment method for Christmas tree combined with a multi source information fusion algorithm and an improved HAZOP method. [PDF]

PLoS One
Wang Q, Li H, Ren G.
europepmc   +1 more source

A Review of Subsidence Monitoring Techniques in Offshore Environments. [PDF]

Sensors (Basel)
Thomas F, Livio FA, Ferrario F, Pizza M, Chalaturnyk R.   +4 more
europepmc   +1 more source

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Investigation of Energy and Power Characteristics of Submersible Electric Motor With Downhole Compensator

2020 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon), 2020
The study investigate need into the influence of changes in the frequency and power source's voltage on the energy and power indicators for a submersible electric drive with an in-well reactive power compensator. It is made in order to prevent accidents during operation.
V.A. Kopyrin, M.V. Deneko, L.A. Gabitiva
exaly   +2 more sources

Subsea Downhole Motion Compensator: Field History, Enhancements, and the Next Generation

IADC/SPE Drilling Conference, 2000
Abstract Since its successful debut in the North Sea, the Subsea Downhole Motion Compensator (SDMC™) has performed flawlessly in numerous milling runs in recent Latin America and North Sea projects. During one North Sea project, rig heave resulted in downtime during nonmilling runs. However, during milling runs in which the SDMC was used,
Doug Durst, Mike Luke
exaly   +2 more sources

Near surface attenuation compensation using downhole seismic data in the Qianjiang New Town area in urban Hangzhou

Journal of Applied Geophysics, 2021
Abstract The development of geophysical methods has increased the relevance of seismic surveys on near-surface geological structures in urban areas. In recent years, one important issue faced by many scholars is how to effectively increase the signal-to-noise ratio of seismic signals and improve the resolution of seismic information. Near-
Xinyu Liu, Gang Tian, Jiajun Peng
openaire   +1 more source

Heave compensation and formation strength evaluation from downhole acceleration measurements while coring

Geo-Marine Letters, 2002
In order to evaluate the efficiency of heave compensation in the Ocean Drilling Program, we developed a device measuring the acceleration of the core barrels. First results show that heave compensation limits bit motion to 10% of the surface heave. We also use the acceleration data to characterize the formation.
Guerin G., Goldberg D.
openaire   +1 more source

Flow Loop Trial of an Autonomous Downhole Choke for Compensation of Rig Heave-Induced Surge & Swab

SPE Norway One Day Seminar, 2019
Abstract Harsh weather conditions result in severe heave motion on floating drilling rigs. The drill string is heave-compensated during drilling ahead, however, when slips are set during drill pipe connections, the topside heave compensation system is disabled, and the drill string is then moving up and down together with the rig ...
Dmitri Gorski, Martin Kvernland, Harald Borgen, John-Morten Godhavn, Ole Morten Aamo, Sigbjørn Sangesland   +5 more
openaire   +1 more source

Justification of reducing loads on the drive of downhole plunger installations with pneumatic compensators

Neftyanoe khozyaystvo - Oil Industry, 2020
E.O. Timashev, K.R. Urazakov
openaire   +1 more source

Determination of the Economic Efficiency from the Downhole Compensators’ Introduction, under the Average Elaboration to Failures

2021 Dynamics of Systems, Mechanisms and Machines (Dynamics), 2021
V. A. Kopyrin, M. V. Deneko, A. A. Markova, A. V. Pashina, R. N. Khamitov   +4 more
openaire   +1 more source