scholarly journals Initiation mechanisms of radial drilling‐fracturing considering shale hydration and reservoir dip

2021 ◽  
Author(s):  
Yuxin Chen ◽  
Yunhong Ding ◽  
Chong Liang ◽  
Dawei Zhu ◽  
Yu Bai ◽  
...  
Keyword(s):  
Radial Drilling

Improving Water Injectivity Through Lateral Radial Drilling into the Reservoir

2021 ◽  
Author(s):  
Effiong Essien ◽  
Uchenna Onyejiaka ◽  
Stanley Onwukwe ◽  
Nnaemeka Uwaezuoke
Keyword(s):  
Oil Recovery ◽  
Damage Zone ◽  
Water Injection ◽  
Progressive Increase ◽  
Recovery Factor ◽  
Water Flooding ◽  
Increase With Increase ◽  
Drilling Technology ◽  
Water Cut ◽  
Radial Drilling

Abstract Poor formation permeability and near well bore damage may limit water injectivity into the reservoir in a water injection project. This paper seeks to evaluate the effect of radial drilling technique on water injectivity and oil recovery in water flooding operation. Radial drilling technology utilizes hydraulic energy to create lateral perpendicular small holes through the casing into the reservoir. The holes may extend to 100 m (330 ft) into the reservoir to access fresh formations beyond the near wellbore, and damage zone. A black oil simulator (Eclipse 100) was used to modeling a lateral radial drill from the borehole into the reservoir, and that of a conventional perforation of the wellbore respectively. A simulation study was carried out using various presumed radial drill configurations in determining injectivity index, displacement efficiencies, recovery factor and water cut of the process. The determined results were further compared with that of the conventional perforation process case respectively. The results show a significant improvement in water injectivity in radial drill case with the increasing length and number of radials as compared to the conventional wellbore perforation case. The determined Recovery factor shows a progressive increase with increase in the numbers of radials drilled, irrespective of the radial length. However, it was observed that, the more the number and length of the radials drilled in to the reservoir, the higher the water cut from producer wells. Radial Drilling Technology, therefore, has a promising potential to improving water injectivity into the reservoir and thereby optimizing oil recovery in a water flooding operation.

scholarly journals Theoretical and experimental study of the pulling force of jet bits in radial drilling technology

2009 ◽  
Vol 6 (4) ◽  
pp. 395-399 ◽  
Author(s):  
Ruichang Guo ◽  
Gensheng Li ◽  
Zhongwei Huang ◽  
Shouceng Tian ◽  
Xiaoning Zhang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Drilling Technology ◽  
Pulling Force ◽  
Radial Drilling

Vibration Analysis of Radial Drilling Machine Structure Using Finite Element Method

2012 ◽  
Vol 472-475 ◽  
pp. 2717-2721 ◽  
Author(s):  
Rajiv Kumar ◽  
Mohinder Pal Garg ◽  
Rakesh C. Sharma
Keyword(s):  
Machine Tool ◽  
Natural Frequency ◽  
Mode Shapes ◽  
Drilling Machine ◽  
Element Analysis ◽  
Stiffness Matrices ◽  
Machine Tool Structure ◽  
Radial Drilling ◽  
Machine Structure

Manufacturing industries now a days have stringent expectation from the machine tools in terms of productivity as well as quality of products.Vibration plays an important role in determining the quality of product.If the pattern of vibration prevailing in the machine tool during cutting is known,then machine tool structure can be designed in such a way so that natural frequency of machine tool structure can be isolated from the forced frequency.So, this study is focused on finding the natural frequency and mode shapes of radial drilling machine structure.Finite element analysis has been done to find out the natural frequencies and mode shapes of radial drilling machine structure.Assembled mass and stiffness matrices are obtained for each element and solved by using inverse iteration technique.

Analysis of Surface Roughness in Drilling of Fly Ash Filled Carbon Fibre Reinforced Composites

2015 ◽  
Vol 813-814 ◽  
pp. 505-510 ◽  
Author(s):  
T. Rajmohan ◽  
K. Mohan ◽  
Venkatraman Mahalingam ◽  
Satendra Kumar Bajpai
Keyword(s):  
Surface Roughness ◽  
Fly Ash ◽  
Carbon Fibre ◽  
Reinforced Composites ◽  
Compression Moulding ◽  
Relative Significance ◽  
Cfrp Composite ◽  
Carbon Fibre Reinforced Plastic ◽  
Radial Drilling ◽  
Fibre Reinforced Composites

Carbon fibre reinforced plastic (CFRP) composite materials has unique mechanical and functional properties due to the combination of its constituent materials that possesses desirable properties. The present paper focuses on analysis of surface roughness in drilling of fly ash filled carbon fibre reinforced composites produced through compression moulding route. Experiments are conducted on a radial drilling machine using Taguchi’s experimental design. Drilling test is carried out using coated HSS drill of 6 and 10 mm diameter. The effect of drill diameter, wt % of fly ash, spindle speed and the feed rate are investigated on surface roughness. The relative significance of the various parameters has been found using ANOVA.

The PLC Control System Design of Radial Drilling

2013 ◽  
Vol 850-851 ◽  
pp. 665-668
Author(s):  
Guang Chun Yang ◽  
Qi Zhang
Keyword(s):  
Control System ◽  
System Design ◽  
Control System Design ◽  
Drilling Machine ◽  
Theory Analysis ◽  
Wiring Diagram ◽  
Plc Control ◽  
Design Plan ◽  
Plc Control System ◽  
Radial Drilling

Focus on the disadvantages such as complicated circuit , poor reliability, difficulty troubleshooting and etc of the traditional relay-contactor control system of Z3040 radial drilling machine, the PLC control system design plan was proposed, the hardware and software design of electrical control system included the PLC selection, the I/O terminal assignments, the I/O hardware wiring diagram drawing as well as the PLC ladder program design was completed in this thesis based on control theory analysis of radial drilling machine.

scholarly journals Maintenance Operations and its Management in Oil Industry in Kuwait

2020 ◽  
Vol 8 (4) ◽  
pp. 1563-1567
Keyword(s):  
Petroleum Industry ◽  
Oil Industry ◽  
Computing Device ◽  
Technical Problems ◽  
Maintenance Strategies ◽  
Failure Frequency ◽  
Lathe Machine ◽  
Radial Drilling ◽  
Lapping Machine ◽  
Oil Company

The maintenance in oil area need to undertake entire shutdowns together with generic refinery turn-around, unit shutdowns on a full accountability foundation and Scaffolding services. The in-house equipment and equipment: the in-house Maintenance workshop facility ought to be completely outfitted with lathe machines, shaping machine, hole spindle lathe machine, horizontal boring machine, radial drilling machine, pipe threading machine, valve lapping machine, mechanical seal lapping machine, welding computing device and all sorts of specialized warmness exchanger re-tubing gear and tools. Maintenance operations in this zone face many troubles in management, price and technical problems. This study aims to study the and count the failures occurred in equipments of Kuwait Oil Company (KOC) in 2019, and study the maintenance strategies used in petroleum industry in the Kuwait state, a maintenance programs or steps will be suggested and investigated in order to improve the maintenance operations. Availability of devices are calculated depending on downtime of the devices at KOC. The data were collected about failures frequency occurred for the KOC company equipments. Most of oil equipments have good availability but in the case of KOC four devices have availability less than 90% which means more failure and downtime, the company adopted a Zero S/D PM Strategy or Philosophy which decreasing failures by 75% and improve the availability of KOC devices. Planning and management of maintenance and monitoring operations in any company decreasing failure frequency of equipments and so downtime of equipments which improves the equipments availability.

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