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Keywords: borehole
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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30696-MS
... using logging while drilling (LWD) sonic tools in a wide variety formation types, often in large, and potentially washed out, surface holes and in a wide variety of mud types. This paper will discuss the physics of acquiring quadrupole shear measurements in large boreholes and slow formations. The...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29485-MS
... borehole conditions in terms of borehole diameter, irregularity of its walls (rugosity and/roughness), cavitation issues, fractures and ambient noises (especially at shallow depth), as well as borehole stability. The analysis of the results confirmed that both in-situ testing methods have promising...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-29052-MS
... technologies and practices for deep-water wells commonly require operators to drill larger borehole sizes throughout the well construction process. For deep-water subsalt wellbores, this often implies exiting a thick salt layer with borehole deviation in borehole sizes ranging from 14.5 to 17.5 in. This paper...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27590-MS
... tubing and operate in different modes, thus providing a wealth of information. However, several environmental factors can complicate the analysis, including complex completions and unknown or variable borehole fluids (gas in particular), which affect the PNL raw measurements and computed outputs. Factors...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-27060-MS
... in resistivity in the smart cement. Presentation of OTC-27060-MS Presentation of OTC-27060-MS cement sheath upstream oil & gas real time monitoring cement property cement formulation offshore technology conference smart cement probe real time system borehole resistance...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-25870-MS
... two deep geotechnical boreholes and a PSA contract area wide geophysical and geological geohazards campaign that delivered an early, first pass geohazards stop-light map and supported delivery of the Early Oil Project (1997). The results of these two initial pieces of work formed the basis of the...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25301-MS
... developed at the University of Bremen/MARUM new opportunities are opened up to deploy sensors in shallow boreholes (<80 m sub-seafloor depth). MeBo is characterized by its versatility and high mobility with deployments down to water depths of 2000 m. Materials recovered via wire-line coring technique...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25183-MS
... In the present study, some component evaluation tests, unit integration tests, system integration tests, environmental life tests and land tests have done with using the experimental prototype (EXP) mockups of the telemetry system for the long term borehole observatory system (LTBMS). This paper...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25243-MS
... for Methane Hydrate Resources in Japan planed and supervised the project with the funding of the Ministry of Economy, Trade and Industry (METI), and scientific supports from the National Institute of Advance Industrial Science and Technology (AIST). One production well with two monitoring boreholes...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2013
Paper Number: OTC-24004-MS
... properties of the shallow sediments in support of future field development. Although a number of exploration and appraisal wells have been drilled below the salt canopy, measurements taken above the salt canopy are quite sparse. In order to calibrate the basin model, two sets of geotechnical boreholes were...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2013
Paper Number: OTC-23955-MS
... assessment and this paper presents analysis of gamma CPT cone data used for the first time within a mass transport complex. The addition of the natural gamma was proposed in this investigation because of the complexity of the site and to enable direct correlation between CPT data and borehole data where...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2012
Paper Number: OTC-23214-MS
... & gas borehole sounder water depth penetration pipeline route reconnaissance survey deep water OTC 23214 Multi-Disciplinary Approach to Data Acquisition for Major Deepwater Infrastructure Pipelines A Comparison of Techniques Employed to Ensure Continuous Route Coverage from Abyssal Plain to...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2012
Paper Number: OTC-23095-MS
... reservoir characterization calculation total sa permeability upstream oil & gas assembly sand coral layer geocomposite borehole shallow gas relief well design annular pressure drilling strip drain drill string ON Sh Ja Cop This This revie offic repr Ab Re for (bm app con by cam int Int...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2010
Paper Number: OTC-20716-MS
... (NanTroSEIZE) was carried out to successfully drill to depths of approx. 1600 m-below sea floor (m-BSF) with a riser equipped drill ship. Future expeditions will drill boreholes at two sites for the installation of a Long-term borehole monitoring system (LTBMS) which will be especially critical for vertical...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2010
Paper Number: OTC-20452-MS
... Gulf of Mexico and other marine sedimentary basins. Drilling operations within GOM JIP Leg II were marked by the constant challenge of optimizing data quality by maintaining borehole stability, which is difficult to achieve within shallow unconsolidated sediments. In addition, several of the targets...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2008
Paper Number: OTC-19687-MS
... Hydraulically Tethered Piston Corer (HTPC) described in this paper is deployed down a borehole using a seabed founded, remotely operated drill rig. The design characteristics of this tool are described, together with the operating methodology. A number of studies, which assess the quality of the samples...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2008
Paper Number: OTC-19699-MS
... Abstract FSCL has just completed an exploratory borehole to determine the suitability of ground conditions for the development of the world's first offshore salt cavern gas storage scheme. The facility, for a UK developer, is a series of sub-surface caverns, to be created in the salt strata...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2008
Paper Number: OTC-19280-MS
... Abstract Swabbing pressures can affect borehole stability. Temporary and local pressure reductions in the borehole fluid can disrupt the in-situ gas-fluid-soil equilibrium and may trigger a shallow gas blow-out. This paper presents swabbing pressures measured during riser-less drilling and...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2007
Paper Number: OTC-18664-MS
... borehole peuchen offshore geotechnic geohazard pore water pressure sediment interpretation upstream oil & gas well logging offshore technology conference drilling investigation note 2 log analysis seafloor zuidberg wegerif proceedings Copyright 2007, Offshore Technology Conference...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2007
Paper Number: OTC-18706-MS
... sediments. The piezometers presented are single point borehole piezometer, the multilevel borehole piezometer, and a new CPT lance piezometer. The piezometers are designed for autonomous subsea deployment in long-term monitoring campaigns. Pore pressures can be measured to depths up to 200m below mudline...

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