The Experts below are selected from a list of 240 Experts worldwide ranked by ideXlab platform
Ron Beyer - One of the best experts on this subject based on the ideXlab platform.
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Performance evaluation of active wireline heave compensation systems in marine well logging environments
Geo-Marine Letters, 2013Co-Authors: Gerardo Iturrino, David Goldberg, E. Meissner, Kerry Swain, Clayton Furman, Peter Fitzgerald, Nathan Frisbee, Joe Chlimoun, John Hyfte, Ron BeyerAbstract:The basic functionality and performance of a new Schlumberger active wireline heave compensation system on the JOIDES Resolution was evaluated during the sea trial and a 3-year period of the IODP Phase II operations. A suite of software programs was developed to enable real-time monitoring of the dynamics of logging Tools, and assess the efficiency of wireline heave compensation during Downhole operations. The evaluation of the system effectiveness was performed under normal logging conditions as well as during stationary tests. Logging data were analyzed for their overall quality and repeatability, and to assess the reliability of high-resolution data such as formation microscanner (FMS) electrical images. This revealed that the system reduces 65–80 % of displacement or 88–98 % variance of Downhole Tool motion in stationary mode under heave conditions of ±0.2–1.5 m and water depths of 300–4,500 m in open holes. Under similar water/heave conditions, the compensator system reduces Tool displacement by 50–60 %, or 75–84 % variance in Downhole Tool motion during normal logging operations. Such compensation efficiency (CE) is comparable to previous compensation systems, but using advanced and upgradeable technologies, and provides 50–85 % heave motion and heave variance attenuation. Moreover, logging down/up at low speeds (300–600 m/h) reduces the system’s CE values by 15–20 %, and logging down at higher speeds (1,000–1,200 m/h) eliminates CE values by 55–65 %. Considering the high quality of the logging data collected, it is concluded that the new system can provide an improved level of compensation over previous systems. Also, if practically feasible, future integration of Downhole cable dynamics as an input feedback into the current system could further improve its compensation efficiency during logging operations.
Gerardo Iturrino - One of the best experts on this subject based on the ideXlab platform.
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Performance evaluation of active wireline heave compensation systems in marine well logging environments
Geo-Marine Letters, 2013Co-Authors: Gerardo Iturrino, David Goldberg, E. Meissner, Kerry Swain, Clayton Furman, Peter Fitzgerald, Nathan Frisbee, Joe Chlimoun, John Hyfte, Ron BeyerAbstract:The basic functionality and performance of a new Schlumberger active wireline heave compensation system on the JOIDES Resolution was evaluated during the sea trial and a 3-year period of the IODP Phase II operations. A suite of software programs was developed to enable real-time monitoring of the dynamics of logging Tools, and assess the efficiency of wireline heave compensation during Downhole operations. The evaluation of the system effectiveness was performed under normal logging conditions as well as during stationary tests. Logging data were analyzed for their overall quality and repeatability, and to assess the reliability of high-resolution data such as formation microscanner (FMS) electrical images. This revealed that the system reduces 65–80 % of displacement or 88–98 % variance of Downhole Tool motion in stationary mode under heave conditions of ±0.2–1.5 m and water depths of 300–4,500 m in open holes. Under similar water/heave conditions, the compensator system reduces Tool displacement by 50–60 %, or 75–84 % variance in Downhole Tool motion during normal logging operations. Such compensation efficiency (CE) is comparable to previous compensation systems, but using advanced and upgradeable technologies, and provides 50–85 % heave motion and heave variance attenuation. Moreover, logging down/up at low speeds (300–600 m/h) reduces the system’s CE values by 15–20 %, and logging down at higher speeds (1,000–1,200 m/h) eliminates CE values by 55–65 %. Considering the high quality of the logging data collected, it is concluded that the new system can provide an improved level of compensation over previous systems. Also, if practically feasible, future integration of Downhole cable dynamics as an input feedback into the current system could further improve its compensation efficiency during logging operations.
David Goldberg - One of the best experts on this subject based on the ideXlab platform.
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Performance of the Wireline Heave Compensation System Onboard D/V JOIDES Resolution
Scientific Drilling, 2013Co-Authors: Gerardo J. Iturrino, Helen F Evans, Jenny Inwood, Annick Fehr, Gilles Guerin, Johanna Lofi, David Goldberg, L Anderson, Alberto MalinvernoAbstract:During wireline logging operations, the up-and-down motion of the ship causes a similar motion (heave) of the Downhole logging Tools unless properly compensated. If the amplitude of this motion is large (greater than a few tens of centimeters), depth discrepancies can be introduced into the logging data (for example, in bed thicknesses, precise depths of lithological boundaries, and angles of dipping fractures). Also, large and irregular Downhole Tool motions increase the risk of damaging Downhole instruments, particularly those with relatively fragile caliper arms. It is therefore critical to minimize Downhole Tool motion for high quality logging data acquisition. During the Ocean Drilling Program (ODP) and the Integrated Ocean Drilling Program (IODP), Lamont-Doherty Earth Observatory (LDEO) of Columbia University designed and maintained wireline heave compensating systems that supported efficient and high-quality logging data acquisition (Goldberg, 1990; Guerin and Goldberg, 2002; Myers et al., 2001; Sarker et al., 2006). The U.S. Implementing Organization (USIO) decided to replace the previous active heave compensating systems during the 2006–2007 extensive conversion of the D/V JOIDES Resolution in order to reduce rig-up time, improve monitoring quality, and, if possible, improve compensation efficiency. An active heave compensation (AHC) system was developed as part of the drilling vessel conversion project. The goal for this new AHC system was to provide (1) a more efficient and reliable heave compensation system located closer to the rig floor, and (2) a robust quantitative methodology for routine assessment of the AHC, including the system’s performance at variable water depth, sea state, cable length, logging speed, and direction.
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Performance evaluation of active wireline heave compensation systems in marine well logging environments
Geo-Marine Letters, 2013Co-Authors: Gerardo Iturrino, David Goldberg, E. Meissner, Kerry Swain, Clayton Furman, Peter Fitzgerald, Nathan Frisbee, Joe Chlimoun, John Hyfte, Ron BeyerAbstract:The basic functionality and performance of a new Schlumberger active wireline heave compensation system on the JOIDES Resolution was evaluated during the sea trial and a 3-year period of the IODP Phase II operations. A suite of software programs was developed to enable real-time monitoring of the dynamics of logging Tools, and assess the efficiency of wireline heave compensation during Downhole operations. The evaluation of the system effectiveness was performed under normal logging conditions as well as during stationary tests. Logging data were analyzed for their overall quality and repeatability, and to assess the reliability of high-resolution data such as formation microscanner (FMS) electrical images. This revealed that the system reduces 65–80 % of displacement or 88–98 % variance of Downhole Tool motion in stationary mode under heave conditions of ±0.2–1.5 m and water depths of 300–4,500 m in open holes. Under similar water/heave conditions, the compensator system reduces Tool displacement by 50–60 %, or 75–84 % variance in Downhole Tool motion during normal logging operations. Such compensation efficiency (CE) is comparable to previous compensation systems, but using advanced and upgradeable technologies, and provides 50–85 % heave motion and heave variance attenuation. Moreover, logging down/up at low speeds (300–600 m/h) reduces the system’s CE values by 15–20 %, and logging down at higher speeds (1,000–1,200 m/h) eliminates CE values by 55–65 %. Considering the high quality of the logging data collected, it is concluded that the new system can provide an improved level of compensation over previous systems. Also, if practically feasible, future integration of Downhole cable dynamics as an input feedback into the current system could further improve its compensation efficiency during logging operations.
Kerry Swain - One of the best experts on this subject based on the ideXlab platform.
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Performance evaluation of active wireline heave compensation systems in marine well logging environments
Geo-Marine Letters, 2013Co-Authors: Gerardo Iturrino, David Goldberg, E. Meissner, Kerry Swain, Clayton Furman, Peter Fitzgerald, Nathan Frisbee, Joe Chlimoun, John Hyfte, Ron BeyerAbstract:The basic functionality and performance of a new Schlumberger active wireline heave compensation system on the JOIDES Resolution was evaluated during the sea trial and a 3-year period of the IODP Phase II operations. A suite of software programs was developed to enable real-time monitoring of the dynamics of logging Tools, and assess the efficiency of wireline heave compensation during Downhole operations. The evaluation of the system effectiveness was performed under normal logging conditions as well as during stationary tests. Logging data were analyzed for their overall quality and repeatability, and to assess the reliability of high-resolution data such as formation microscanner (FMS) electrical images. This revealed that the system reduces 65–80 % of displacement or 88–98 % variance of Downhole Tool motion in stationary mode under heave conditions of ±0.2–1.5 m and water depths of 300–4,500 m in open holes. Under similar water/heave conditions, the compensator system reduces Tool displacement by 50–60 %, or 75–84 % variance in Downhole Tool motion during normal logging operations. Such compensation efficiency (CE) is comparable to previous compensation systems, but using advanced and upgradeable technologies, and provides 50–85 % heave motion and heave variance attenuation. Moreover, logging down/up at low speeds (300–600 m/h) reduces the system’s CE values by 15–20 %, and logging down at higher speeds (1,000–1,200 m/h) eliminates CE values by 55–65 %. Considering the high quality of the logging data collected, it is concluded that the new system can provide an improved level of compensation over previous systems. Also, if practically feasible, future integration of Downhole cable dynamics as an input feedback into the current system could further improve its compensation efficiency during logging operations.
Clayton Furman - One of the best experts on this subject based on the ideXlab platform.
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Performance evaluation of active wireline heave compensation systems in marine well logging environments
Geo-Marine Letters, 2013Co-Authors: Gerardo Iturrino, David Goldberg, E. Meissner, Kerry Swain, Clayton Furman, Peter Fitzgerald, Nathan Frisbee, Joe Chlimoun, John Hyfte, Ron BeyerAbstract:The basic functionality and performance of a new Schlumberger active wireline heave compensation system on the JOIDES Resolution was evaluated during the sea trial and a 3-year period of the IODP Phase II operations. A suite of software programs was developed to enable real-time monitoring of the dynamics of logging Tools, and assess the efficiency of wireline heave compensation during Downhole operations. The evaluation of the system effectiveness was performed under normal logging conditions as well as during stationary tests. Logging data were analyzed for their overall quality and repeatability, and to assess the reliability of high-resolution data such as formation microscanner (FMS) electrical images. This revealed that the system reduces 65–80 % of displacement or 88–98 % variance of Downhole Tool motion in stationary mode under heave conditions of ±0.2–1.5 m and water depths of 300–4,500 m in open holes. Under similar water/heave conditions, the compensator system reduces Tool displacement by 50–60 %, or 75–84 % variance in Downhole Tool motion during normal logging operations. Such compensation efficiency (CE) is comparable to previous compensation systems, but using advanced and upgradeable technologies, and provides 50–85 % heave motion and heave variance attenuation. Moreover, logging down/up at low speeds (300–600 m/h) reduces the system’s CE values by 15–20 %, and logging down at higher speeds (1,000–1,200 m/h) eliminates CE values by 55–65 %. Considering the high quality of the logging data collected, it is concluded that the new system can provide an improved level of compensation over previous systems. Also, if practically feasible, future integration of Downhole cable dynamics as an input feedback into the current system could further improve its compensation efficiency during logging operations.