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Keywords: hydrate formation
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Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 23–April 1, 2021
Paper Number: IPTC-21454-MS
... more than 90 percentage. To further understand the hydrate risk under flowing conditions, the difference between hydrate formation temperature and fluid flowing temperature (represented by DTHYD) was plotted at each depth along the wellbore in Figure 6 . For example, at the sandface depth for...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 23–April 1, 2021
Paper Number: IPTC-21489-MS
... SPS configuration after routing of well W6 Figure 16 Downstream temperature of manifold CSE-4 after routing in SPS Figure 17 Downstream temperature of manifold CSE-2 after routing in SPS Figure 18 Step 1 of proxy algorithm to find hydrates formation temperature at P rt...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 23–April 1, 2021
Paper Number: IPTC-21828-MS
... concentration. Figure 5 Pressure profile of the CO 2 hydrate dissociation in the presence of water, 0.03 wt% SDS, and 0.03 wt% COOHMWCNTs at 271.15K. Figure 2 Initial CO 2 hydrate formation rate in the presence of water and nanofluid. Figure 3 Half-completion time vs...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 13–15, 2020
Paper Number: IPTC-19699-MS
... system is performed using TMFS. Other scenarios are also evaluated such as startup, depressurization, pigging, wax deposition, and hydrate formation. This paper provides a method to minimize the cost by selecting the optimum pipelines sizes and diameters, and investigating the requirements of...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 26–28, 2019
Paper Number: IPTC-19373-MS
... inhibitor hydrate reservoir hydrate depressurization permafrost enhanced recovery mechanism thermal stimulation hydrate formation giavarini hydrate layer Technology Conference hydrate dissociation equation injection gas hydrate reservoir reservoir Collet , T. , 2013 . Gas...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, November 14–16, 2016
Paper Number: IPTC-18662-MS
... pressurized and stabilized at 8 MPa after absolute permeability measurement. After stabilization, the system was cooled to 276 K to form methane hydrate. Relative permeability to gas was measured after methane hydrate formation. Water saturation varies from 10%, 35 %, 50 %, 75% and 100% in the sand pack with...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 6–9, 2015
Paper Number: IPTC-18432-MS
... Abstract The traditional method of managing hydrates in production systems has been complete avoidance. This methodology comes at a high cost of insulation to maintain fluid temperature beyond the hydrate formation temperature and/or chemicals to prevent hydrates from forming. This paper will...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 10–12, 2014
Paper Number: IPTC-17987-MS
... caprolactam as a kinetic inhibition polymer included systems, was investigated with measuring the torque of stirring liquid and hydrate phases. The torque – hydrate conversion curves provided some information to classify the hydrate formation process into several specific regions and to characterize each...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 10–12, 2014
Paper Number: IPTC-18164-MS
... ABSTRACT Gas hydrate formation and control is a critical flow challenge that many offshore oil and gas production operations encounter. Formation of hydrates can cause blockage of production flowlines, chokes and valves, which can result in catastrophic failures. Compared to other production...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 10–12, 2014
Paper Number: IPTC-17835-MS
... interest in developing monitoring and warning systems that can adjust inhibitor injection rates and warn against any potential hydrate blockage. This laboratory has been investigating various techniques for monitoring hydrate safety margin and detecting early signs of hydrate formation for a number of...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 19–22, 2014
Paper Number: IPTC-17440-MS
... pressure and increases the temperature at which hydrate formation occurs. Operators have used both corrosion inhibitors and kinetic hydrate inhibitors to decrease the capital requirements of developing sour high pressure gas systems. The development of sour gas corrosion inhibitors that are compatible with...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 19–22, 2014
Paper Number: IPTC-17492-MS
... provide a cost-effective alternative to the use of chemical inhibitors, on a short-medium term basis, particularly in cases of seasonal hydrates and minimum-facility marginal oil production. Further study of effect of salinity of the produced crude on hydrate formation, given anticipated water-cut...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 26–28, 2013
Paper Number: IPTC-16820-MS
... precursors will be present in the aqueous phase after dissociation, the risk of hydrate re-formation becomes extremely high. Although the KHIs are becoming popular in many fields as hydrate inhibitors are considered not effective to inhibit the hydrate formation in the presence of residual hydrate structures...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 26–28, 2013
Paper Number: IPTC-16722-MS
.... Directional Drilling Mud Line Wellhead Drillstem Testing drillstem/well testing iptc 16722 rig drilling operation South China Sea assembly Upstream Oil & Gas Typhoon completion design appraisal program soliton hydrate formation appraisal well international petroleum technology conference...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, November 15–17, 2011
Paper Number: IPTC-15287-MS
... the hydrate formation curve to establish safe operating limits in order to minimize potential flow restriction problems, plugging and damage to the pipeline and process equipment, thus ensuring reliability in the desing of the pipeline. Introduction Transportation of natural gas through subsea...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, November 15–17, 2011
Paper Number: IPTC-14211-MS
... and temperature (Wang and Economides, 2009, Max et al., 2006). Hydrate Formation in Geological Structure Four conditions must co-exist for hydrates to form in a geological structure: presence of reservoir water free or dissolved gas high pressure and, especially, lower temperature. A...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, November 15–17, 2011
Paper Number: IPTC-14592-MS
... Abstract A very important aspect of offshore operations is the risk associated with flow assurance issues, with hydrates the most prevalent of them. The risk of hydrate formation brings the possibility of hydrate plug formation in the line which usually takes a long time to dissociate...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, November 15–17, 2011
Paper Number: IPTC-14609-MS
... Abstract Gas hydrates in reservoirs are generally not in thermodynamic equilibrium and there may be several competing phase transitions involving hydrate. Formation of carbon dioxide hydrates during aquifer storage of carbon dioxide involves roughly 10% volume increase compared to groundwater...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 7–9, 2009
Paper Number: IPTC-13765-MS
... and reliable, optimising the KHI injection rate, improving the economy and reliability of hydrate inhibition strategy, and minimising the impact on the environment. Introduction From a flow assurance point of view, gas hydrate formation is undoubtedly dreaded as the major risk of plugging the oil...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 7–9, 2009
Paper Number: IPTC-13858-MS
... assuming that the jumper would be gas-filled. Moreover, two extreme cases under forced convection heat transfer were assumed: first, that the fluid inside the jumper would be fully mixed and second, that stagnant fluid would be inside the jumper. Analysis by ExxonMobil indicated hydrate formation for the...

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