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Barrier

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Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-205938-MS
... Abstract Objectives/Scope A 60-year-old well exhibited a leak at the surface and sustained annuli pressure (SAP) in all three annuli - A, B and C. The age of the well coupled with the symptoms suggested a complex multi-barrier failure scenario that needed to be diagnosed quickly...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Health, Safety, Environment, and Sustainability, July 27–30, 2020
Paper Number: SPE-199380-MS
... should give a visual summary of all plausible accident scenarios that could exist around a certain hazard. Second, by identifying barriers to a number of threat scenarios the Bowtie displays how a system controls those scenarios. ii In essence the Bowtie consists of a number of threat lines that lead...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 13–15, 2020
Paper Number: IPTC-19996-MS
... The reliability of subsurface barrier valves has long been an industry problem. This can lead to costly interventions, especially in deepwater subsea markets. This paper describes the world's first deployment of multicycle barrier valves in 2 subsea wells in Australia. These valves use...
Proceedings Papers

Paper presented at the SPE Europec featured at 81st EAGE Conference and Exhibition, June 3–6, 2019
Paper Number: SPE-195447-MS
... represents a challenge as a result of formation complexity, heterogeneity, and limitations of evaluation technologies. It is well-known that some areas in the Vaca Muerta formation contain layers that can act as fracture barriers and are responsible for fracture containment. This paper presents a fast...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Health, Safety, Security, Environment, and Social Responsibility, April 11–13, 2016
Paper Number: SPE-179364-MS
... Abstract Barrier management is a main priority area for the Petroleum Safety Authority Norway (PSA). This has been chosen as a main priority as a result of accident investigations clearly indicating that failure or weakening of barriers is a general cause of incidents. The lesson learned...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Health, Safety, Security, Environment, and Social Responsibility, April 11–13, 2016
Paper Number: SPE-179214-MS
... Abstract Barrier Analysis has become a key element in managing major hazards and process safety, including and increasing attention from regulators for barriers and barrier management. In practice however the quality of the barrier analysis is often very poor and differences in understanding...
Journal Articles
Journal: Corrosion
Corrosion 55 (08).
Paper Number: NACE-99080805
Published: 01 August 1999
...X.Q. Ma; Y.M. Rhyim; H.W. Jin; C.G. Park; M.C. Kim ABSTRACT Zirconia (ZrO2)-based thermal barrier coatings (TBC) have been developed to improve the durability of the hot section of gas turbine engines and their efficiency.1-3 In state-of-the-art TBC systems, a duplex coating usually is used...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3741592
... More than 2,000 barrier islands, linear sand bodies paralleling the shoreline with open ocean in the front and a lagoon or marsh on the landward side, line the world’s shorelines. Although sparsely populated many decades ago, during the last few decades the population living full time or part...
Proceedings Papers

Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the ADIPEC, October 31–November 3, 2022
Paper Number: SPE-211582-MS
... Abstract In order to optimize Completion installations by eliminating Intermediate Completion, reducing rig time, and preventing fluid loss, a project was initiated to develop a barrier glass plug with bypass capability. The plug allows self-filling of the tubing while running in hole...
Proceedings Papers

Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the ADIPEC, October 31–November 3, 2022
Paper Number: SPE-211171-MS
... the results from passes logged through short string (SS) and long string (LS) tubing. The novel instrument utilizes transient electromagnetics or pulse eddy current technology and contains three sensors that achieve a trade-off between high-resolution measurements of the inner barrier and high radial depth...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–5, 2022
Paper Number: SPE-210100-MS
... Abstract Inflow (negative) tests are critical for verifying the integrity of well barrier elements (WBEs) that prevent unwanted flow of formation fluids into the well. Historically, inflow tests have been validated and documented using subjective and inconsistent techniques, including analog...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition, August 9–10, 2022
Paper Number: SPE-209856-MS
..., improper placement of cement plugs, and poor quality cement plugs. In this scenario, an offshore well in Vietnam was left with CT held only on the surface by the Blow Out Preventers (BOP) after getting stuck downhole more than a year previously. Retrieval of the CT was required without any downhole barrier...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition, August 9–10, 2022
Paper Number: SPE-209908-MS
... the temporary zonal protection (barrier). Verification was achieved by tagging the top of the barrier and observing the pressure change in the real-time downhole gauge. The thixotropic particulate gel sealant treatment was then tailed in and squeezed into the upper interval to shut off the zone and create...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0191
..., the behavior of salt is ideal and can provide a necessary and economically beneficial natural barrier. The aim of this paper is to model wellbore closure in salt throughout uncemented casing zones considering both open annular. For this, a computational methodology was developed and evaluated through...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0741
... Engineered Barrier Materials (EBM) forming a buffer between the waste containers and the natural rock. Bentonite clay is commonly used as an EBM for its low cost, long-term stability, low hydraulic permeability in a saturated state, high thermal resistance, high radionuclide retardation capacity, high...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0575
... the possibility that certain rock formations around the well could deform enough during the well’s life to close the uncemented annular and strongly touch the casing, thereby promoting the formation of an impermeable barrier. This paper describes a protocol for numerical simulation of uncemented annular wellbore...
Journal Articles
SPE Drill & Compl (2022)
Paper Number: SPE-199654-PA
Published: 03 May 2022
... for an indefinite term. A mechanism that may be exploited to simplify well abandonments is using natural shale or salt formations for the creation of annular barriers. Currently, uncemented annuli often require casing cutting and pulling or milling before abandonment plugs can be set, which necessitates the use...
Journal Articles
SPE Drill & Compl (2022)
Paper Number: SPE-208782-PA
Published: 03 May 2022
...Eric van Oort; Akshay Thombare; Munir Aldin; Alex Lucas Summary It is well-known that formations that exhibit active creep behavior under downhole conditions, such as reactive shales and mobile salts, can form annular barriers across uncemented or poorly cemented annular sections behind casing...
Proceedings Papers

Paper presented at the SPE Norway Subsurface Conference, April 27, 2022
Paper Number: SPE-209536-MS
... Abstract Settled barite is a flexible material which can be compared with unconsolidated sand slurry barrier materials. It is consisted of different particles with density of 4.2 sg and in combination with additives in drilling fluid (e.g., bentonite, xanthan gum, cuttings) can create a seal...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 25–29, 2022
Paper Number: SPE-209462-MS
... as a pressure barrier by usurping most of the downstream driving force for oil displacement. Polymer injection pressures must be limited. The maximum allowable injection pressure is commonly constrained by caprock integrity, injection equipment, and/or regulations, even though fractures can be beneficial...

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