Perfection and Practice of Sand Control Technology System in Overseas River Oilfield

2021 ◽  
Keyword(s):  
Control Technology ◽  
Technology System ◽  
Sand Control

scholarly journals Research and application of solid-liquid dual material sand control technology

2021 ◽  
Vol 632 ◽  
pp. 022057
Author(s):  
Huaiwen Li ◽  
Wei Liu ◽  
Lifei Shao ◽  
Xiaofang Wang ◽  
Chao Wang ◽  
...  
Keyword(s):  
Control Technology ◽  
Sand Control ◽  
Solid Liquid ◽  
Dual Material

scholarly journals Research and Application of One-key Sequence Control Technology for Substations

2019 ◽  
Vol 136 ◽  
pp. 01022
Author(s):  
Ge Li-Qing ◽  
Wang Jian-Feng ◽  
Teng Jing-Yu ◽  
Yang Ming
Keyword(s):  
Decision Support ◽  
Background Information ◽  
Control Technology ◽  
Technology System ◽  
Management Efficiency ◽  
Electrical Grids ◽  
Effectiveness And Efficiency ◽  
The One ◽  
Reasonable Use ◽  
Overall Effectiveness

The substations are important parts of modern electrical grids. In this sense, it is necessary to enhance the management efficiency and robustness of the substations. The one-key sequence control technology system could simultaneously control several subsystems and make use of their functions to automatically operate the substations. In this study, three subsystems, i.e., monitoring subsystems, error analysis subsystem, and decision support subsystem are designed in the one-key sequence control technology system. All the background information from the substations is monitored, checked, detected to find the potential threats. The decision support subsystem provides suggestive ways to handle these problems. Therefore, through the reasonable use of the one-key sequence control technology, the overall effectiveness and efficiency of the substations can be enhanced. With the development of artificial intelligence technologies, the one-key sequence control technology system can be further improved with more powerful functions.

Research on Machining Methods for Non-Circular Isometric Profile

2009 ◽  
Vol 407-408 ◽  
pp. 68-72
Author(s):  
Hong Yan Wang ◽  
Xue Feng Yang ◽  
Pei Quan Guo
Keyword(s):  
Design Principle ◽  
Damping Ratio ◽  
Numerical Control ◽  
Control Technology ◽  
Servo Motor ◽  
Technology System ◽  
Modeling Technology ◽  
Value Range ◽  
Machining System ◽  
Profile Modeling

Two machining methods for non-circular isometric profile are introduced. The profile modeling technology and the numerical control technology are analyzed. The dynamic property of in a series profile modeling technology system is revealed, and the design principle for in a series profile modeling technology system is put forward, the value range of damping ratio is instanced at near 0.7. The turning machining system adopting linear servo motor as drive element is brought forward.

On High Pressure Squeeze Pack Numerical Simulation of Unconsolidated Sandstone Based on Discrete Element

2010 ◽  
Vol 34-35 ◽  
pp. 1666-1670
Author(s):  
Wei Zhang Wang ◽  
Xiang Zhen Yan
Keyword(s):  
Numerical Simulation ◽  
High Pressure ◽  
Flow Simulation ◽  
Discrete Element ◽  
Simulation Software ◽  
Oil Reservoir ◽  
Control Technology ◽  
Sand Control ◽  
Grain Flow ◽  
Element Theory

Sand inflow is one of the problems in unconsolidated sandstone oil reservoir recovery. The most frequently applied sandcontrol method is high-pressure gravel squeeze packing sand control technology. But incorrect knowledge of stratum shapes under high-pressure squeeze packing leads to unreasonable technology and implement parameters. This thesis, based on the discrete element theory and by means of two-dimension grain flow simulation software PFC2D, considers three oil wells with unconsolidated sandstone in terms of their cementing strengths . The simulation result shows that strata with diverse cementing strengths vary remarkably when high-pressure squeeze pack is asserted. Established calculation pattern might lead to sizable deviation.

Case Study: Sand Control Technology During CSS in Liaohe and Xinjiang Heavy Oil Reservoirs

2019 ◽  
Author(s):  
Xuan Du ◽  
Haora Zheng ◽  
Xiaochun Wang ◽  
Xin Hua ◽  
Wenlong Guan ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Oil Reservoirs ◽  
Control Technology ◽  
Sand Control ◽  
Heavy Oil Reservoirs

Design, Development and Installation of Modular Inflow Control Technology

2021 ◽  
Author(s):  
Valeria Erives ◽  
Mike Plooy ◽  
Vivek Agnihotri ◽  
Ashutosh Dikshit ◽  
Amrendra Kumar ◽  
...  
Keyword(s):  
Computer Aided Design ◽  
Field Trials ◽  
Design Stage ◽  
Control Technology ◽  
Design Development ◽  
Screen Design ◽  
Sand Control ◽  
Reducing Costs ◽  
Design Calculations ◽  
Aided Design

Abstract Integrating a flow control sliding sleeve into a sand screen can provide multiple advantages to the user in controlling the production inflow. Although it does come with an increased completion cost as well as the number of interventions required when its time to operate those valves. Especially in long horizontal wells, this can become time consuming and inefficient. A few technologies exist to address this issue but they are either too complex or require specialized rigging equipment at the wellsite, which is not desirable. As described herein, a unique, fit for application modular sliding sleeve sand screen assembly with dissolvable plugs was developed that eliminates wash-pipe and allows flow from several screens controlled via a single sliding sleeve. Design and field installation of these modular screens is presented in this paper. The new modular sand-screen consisted of an upper joint, modular middle joint, modular middle joint with ICD/SSD (w/ optional dissolvable plugs), and a lower joint, and novel field installable flow couplings between them. The design allowed for any number of non-ICD/SSD screen joints to be connected to any number of ICD/SSD joints in any order. A computer-aided design was followed to achieve all the operational/mechanical requirements, Computational fluid dynamics (CFD) was used to optimize the flow performance characteristics. Prototypes were manufactured and tested prior to conducting successful field trials. The conceptualization and design stage provided several challenges as different ways to achieving modularity and interconnectivity were explored (such as internal to the tubing or external, sealing methods, ease of installation, reliability). Several design calculations were performed to select the most robust design and most suitable solution for the application. Design for manufacturing review, design calculations and CFD analysis helped with the selection of a concept that maximized the flow rates and kept flow velocity under the limit through the critical sections. Dissolvable plugs were used to temporarily close the SSD ports for wash-pipe free installation. The sealing mechanism of plugs was confirmed by differential pressure test up to 500 psi. A valuable, new downhole modular screen design for use w/ICD/SSD providing intervention-less completions without involving complex/expensive technologies is developed, tested and installed. A new, field-proven, modular sand control technology allowing flow from several non-ICD/SSD screen joints to drain into a single ICD/SSD joint, thus eliminating the need to run ICD/SSD on every screen joint in an unconsolidated formation is developed. Dissolvable plug integrated into sliding sleeve ports allowed wash pipe free installation. The technology allows increasing/decreasing the total drainage length at the well site per zonal requirements, thereby reducing costs and improving performance.

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