Survey design for high-density, high-productivity, broadband vibroseis point-source and receiver acquisition — a case study

2012 ◽  
Author(s):  
Peter van Baaren ◽  
Roger May ◽  
Alexander Zarkhidze ◽  
David Morrison ◽  
John Quigley ◽  
...  
Keyword(s):  
Point Source ◽  
Survey Design ◽  
High Density ◽  
High Productivity

Survey design for high density, high productivity broadband Vibroseis point source and receiver acquisition — a case study from the UAE thrustbelt

2012 ◽  
Author(s):  
Peter van Baaren ◽  
Roger May ◽  
Alexander Zarkhidze ◽  
David Morrison ◽  
John Quigley ◽  
...  
Keyword(s):  
Point Source ◽  
Survey Design ◽  
High Density ◽  
High Productivity

Near-surface characterization, challenges, and solutions for high-density, high-productivity, broadband vibroseis point-source and receiver survey—A case study

2013 ◽  
Author(s):  
Alexander Zarkhidze ◽  
Claudio Strobbia ◽  
Abdallah Ibrahim ◽  
Luis Viertel Herrera ◽  
Abdulla Al Qadi ◽  
...  
Keyword(s):  
Point Source ◽  
Surface Characterization ◽  
High Density ◽  
Near Surface ◽  
High Productivity

Complex depth imaging using reverse time migration for an integrated high-density point-source and receiver survey onshore U.A.E.—A case study

2013 ◽  
Author(s):  
Erick Zubay ◽  
Chris Cunnell ◽  
Alexander Zarkhidze ◽  
Mohamed Baioumy ◽  
Luis viertel Herrera ◽  
...  
Keyword(s):  
Point Source ◽  
High Density ◽  
Density Point ◽  
Reverse Time ◽  
Reverse Time Migration ◽  
Depth Imaging ◽  
Time Migration

Full-azimuth, high-density, 3D point-source/point-receiver seismic survey for shale gas exploration in a loess plateau: a case study from the Ordos basin, China

First Break ◽  
2014 ◽  
Vol 32 (9) ◽  
Author(s):  
Xiangzeng Wang ◽  
Lixia Zhang ◽  
Quansheng Liang ◽  
Chengfu Jiang ◽  
Wei Wang ◽  
...  
Keyword(s):  
Point Source ◽  
Loess Plateau ◽  
Shale Gas ◽  
Ordos Basin ◽  
High Density ◽  
Seismic Survey ◽  
Source Point ◽  
The Ordos Basin

The potential cost of environmental certification to vegetation management in plantation forests: a New Zealand case study

2011 ◽  
Vol 41 (5) ◽  
pp. 986-993 ◽  
Author(s):  
Carol A. Rolando ◽  
Michael S. Watt ◽  
Jerzy A. Zabkiewicz
Keyword(s):  
New Zealand ◽  
Cost Effective ◽  
Vegetation Management ◽  
Rate Of Return ◽  
Internal Rate Of Return ◽  
Mechanical Control ◽  
Vegetation Control ◽  
High Productivity ◽  
Plantation Forests

Plantation forests certified by the Forest Stewardship Council have restrictions on herbicide use. Since certified plantations are dependant on herbicides for cost-effective vegetation management, compliance requires a shift from current chemical practices. Using New Zealand plantation forests as a case study, discounted cash flow analyses were used to estimate the cost of certification-compliant vegetation control regimes compared with current non-compliant methods. We examined methods that (i) reduce the quantity of herbicides by using spot control and (ii) avoid the use of herbicides by using weed mats, manual, and mechanical control. Cost analyses were undertaken for low-, medium-, and high-productivity sites. The internal rate of return of the non-compliant regime was between 5% and 5.8% across the productivity range. Spot control was cheaper than current non-compliant practice. However, spot control is limited by site suitability and the availability of labour. Non-chemical control methods were expensive relative to other regimes. Reductions in the internal rate of return varied across low- and high-productivity sites between 0.8% and 0.5% for manual control, 1.3% and 0.8% for mechanical control, and 1.7% and 1.0% for weed mats. Meeting the goals of certification while retaining cost-effective vegetation control presents a challenge to the plantation forestry sector.

High-density 3D point receiver seismic acquisition and processing – a case study from the Sichuan Basin, China

First Break ◽  
2014 ◽  
Vol 32 (1) ◽  
Author(s):  
F. Xiao ◽  
J. Yang ◽  
B. Liang ◽  
M. Zhang ◽  
R. Li ◽  
...  
Keyword(s):  
Sichuan Basin ◽  
High Density ◽  
Seismic Acquisition ◽  
The Sichuan Basin

High density European Rail Traffic Management System (HD-ERTMS) for urban railway nodes: The case study of Rome

2021 ◽  
Vol 17 ◽  
pp. 100232
Author(s):  
Federico Cuppi ◽  
Valeria Vignali ◽  
Claudio Lantieri ◽  
Luca Rapagnà ◽  
Nicola Dimola ◽  
...  
Keyword(s):  
Traffic Management ◽  
Management System ◽  
High Density ◽  
Traffic Management System ◽  
Rail Traffic

Use of Micronized Weighting Agents for High Density Completion Fluids: A Case Study

2021 ◽  
Author(s):  
Sufyan Deshmukh ◽  
Marcelo Dourado Motta ◽  
Sameer Prabhudesai ◽  
Mehul Patil ◽  
Yogesh Kumar ◽  
...  
Keyword(s):  
Environmental Impact ◽  
High Density ◽  
Fluid Loss ◽  
Damage Potential ◽  
Coiled Tubing ◽  
Viscosity Profile ◽  
Invert Emulsion ◽  
Emulsion Fluid ◽  
Minimal Fluid

Abstract A unique invert emulsion fluid (IEF) weighted up with treated micronized weighting agent (MWA) slurries has been developed and successfully implemented in the field as a completion and testing fluid. The utilization of this unique IEF by design allowed the fluid properties to be lower on viscosity and superior suspension characteristics, which allowed for thermally stable fluid and provided excellent downhole hydraulics performance. Much of the earlier development and deployment of this type of IEF was focused on drilling for sections in narrow mud weight and fracture gradient windows, coiled tubing operations, managed pressure drilling, and extended reach wells. Many of these drilling challenges are also encountered in high pressure and high temperature (HTHP) and ultra-deepwater field developments and mature, depleted fields. Early fluid developments focused on designing the fluids chemistry and physics interactions and the optimization of mineralogy of the weighing agent used. There was also some concern on variability of the results seen on the return permeability as well as standard fluid loss experiments. The paper describes the laboratory and field and rigsite data generated while using the MWA in IEFs during completion operations with a client in India. The paper will briefly describe the laboratory work before the application and the associated results observed on the rig site. It will also outline all the challenges which were faced during the execution and mixing of the MWA IEFs. Each separate operation required a high-density reservoir fluid solution above 15.5 ppg [1.85 sg]. Because corrosion, sag potential, and scale were the operator's main concerns, a solids-free brine or other type of weighting agent (for e.g. Calcium Carbonate and/or Tri-Manganese Tetra Oxide) solution was not favored. A high-density IEF designed with MWA allowed us to provide a solution that mitigated against the risks identified in each operation. The thin viscosity profile enabled completion activities to proceed with minimal fluid consumption at surface, reducing the overall environmental impact. The high-density (15.6 ppg [1.86 SG] and 16.2 ppg [1.94 SG]) invert emulsion fluid was designed to minimize sag potential with minimal reservoir damage potential. With a thinner viscosity profile compared to conventional IEFs at equivalent densities, the fluid enabled completion activities with minimal fluid volumes lost over shakers and reduced the environmental impact. The MWA that was used to build the IEF used for drilling and completion fluid enabled maintenance of extremely low-shear rate viscosities when compared to conventional barite-laden fluids. This fluid was used for suspending and abandoning the well in Case Study A, where the reentry and intervention of the well was planned to be after 2 years. After exposure of the fluid in Case Study A, the fluid showed minimum sag after re-entry of the well and the intervention activities were done without any problems. Case Study B showed that the fluid was mixed to the density of 16.2 ppg and was used to perforate and test two different zones. The bottom hole static temperature (BHST) reported were 356 degF (180 degC) for Case Study A and 376 degF (191 degC) for Case Study B respectively. The paper attempts to show the effects of using this alternative weighing agent as a completion fluid instead of a high-density solids-free brine or other solids-laden high-density brines and the associated success, which could be managed if the fluid design is carefully planned.

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