scholarly journals PRODUCTION WELL PERFORMANCE ENHANCEMENT USING SONICATION TECHNOLOGY

2003 ◽  
Author(s):  
Michael A Adewumi ◽  
M Thaddeus Ityokumbul ◽  
Robert W Watson ◽  
Mario Farias ◽  
Glenn Heckman ◽  
...  
Keyword(s):  
Performance Enhancement ◽  
Well Performance ◽  
Production Well

scholarly journals Production Well Performance Enhancement using Sonication Technology

2005 ◽  
Author(s):  
Michael A Adewumi ◽  
M Thaddeus Ityokumbul ◽  
Robert W Watson ◽  
Eltohami Eltohami ◽  
Mario Farias ◽  
...  
Keyword(s):  
Performance Enhancement ◽  
Well Performance ◽  
Production Well

scholarly journals A New Approach for Determining the Control Volumes of Production Wells considering Irregular Well Distribution and Heterogeneous Reservoir Properties

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Cheng Lu ◽  
Ling Chen ◽  
Xiaodong Wang ◽  
Wanjing Luo ◽  
Yue Peng ◽  
...  
Keyword(s):  
Control Volume ◽  
Computational Cost ◽  
Real Field ◽  
Well Performance ◽  
Production Well ◽  
Reservoir Model ◽  
Reservoir Properties ◽  
New Approach ◽  
Production Wells ◽  
Control Volumes

The oil and gas fields are commonly developed with a group of production wells. Therefore, it can be essential for the industries to predict the performance of the production wells in order to optimize the development strategies. In practice, it frequently happens that we only hope to study the performance of a single production well. In such cases, it can be time consuming to run the reservoir simulation with the entire reservoir model to study the well performance. Hence, it can be preferred to determine the control volume (or drainage volume) of the target well from the entire reservoir and run the simulation with the small control volume to reduce the simulation cost. However, an irregular layout of the production wells and the heterogeneity of reservoir properties, which can be commonly observed in real field cases, can induce a stringent barrier for one to determine the control volumes. At present, we are still lacking a method to determine the control volumes of the production wells considering well distribution and reservoir heterogeneities. In order to overcome such a barrier, the authors proposed a new approach to divide the entire reservoir into small control volumes on the basis of the fast marching method (FMM). This approach is validated by comparing the simulation outputs of the target well calculated only with the determined control volume to those calculated with the entire reservoir model. The calculated results show that using the control volume that is determined with the proposed method to calculate the well performance can yield results that agree well with the results that are calculated with the entire reservoir model. This indicates that this proposed method is reliable to determine the control volume of the production wells. In addition, the calculated results in this work show that changing fracture length exerts a slight influence on the control volumes if the length of all fractures is increased, whereas, if only one of the fracture lengths is increased, the control volume of the corresponding well will be significantly increased. The number of the production wells and the distribution of the production well can noticeably influence the control volumes of the production wells. The findings of this study can help for optimizing the well spacing, estimating the ultimate recovery, and reducing the computational cost.

Development and Trial of Technology for Open Hole Wells Performance Enhancement in GoM

2021 ◽  
Author(s):  
Luis Peixoto ◽  
Wilfred Nathaniel Provost ◽  
Jesse Thomas Gerber
Keyword(s):  
Filter Cake ◽  
Performance Enhancement ◽  
New Technology ◽  
Injection Rate ◽  
Differential Pressure ◽  
Successful Implementation ◽  
Well Performance ◽  
Noticeable Effect ◽  
Open Hole ◽  
Well Injectivity

Abstract Open hole (OH) completions are not very common in the GoM, but the area has seen an uptick in OH wells in recent years, and a few big projects have elected to use the same completion archetype. There are several different ways to complete an OH well, and one of these completion techniques involves running screens across the OH in Drill-In fluid (DIF), displacing the DIF out of the OH with brine, and then setting the packer, before pumping a filter cake breaker, designed to remove the filter cake and restore the reservoir permeability to near pre-drilling levels. A review of past open hole (OH) well completions in GoM revealed that there was an inconsistent action of the breaker on the filter-cake: sometimes the breaker would react quickly, and sometimes there was no noticeable effect. This study led to the development of a new technology to allow better displacements of the OH, with the ultimate objective of reducing initial well skin induced by the drill-in fluid (DIF) and filter cake. It was theorized that the low displacement rates would lead to poor removal of the mud from the OH, in turn leading to a poor breaker action on the DIF filter cake and a long-term impact on well injectivity and increased OPEX, as these wells tend to need an initial stimulation within a short timeframe after initial completion. The approach used was to develop a new tool to allow faster displacement rates, and test it on a trial well, to verify the results and validate this theory. To solve this problem, a new tool was proposed, developed and fully tested in a tight deadline of 6 months. The new module allows up to 9 bpm rates and up to 3,500 psi differential pressure before setting the packer, versus the previous ∼800 psi differential pressure limit, present in all tools in the market, for that casing size (7 5/8"). During the first well trial, the tool allowed a displacement of the OH at double the pump rates obtained in previous wells in the same basin, with similar OH lengths, leading to the smallest volume of contaminated fluid interface seen to date, indicating a much better displacement. Once the well was put online, it achieved an injection rate above expectations, even when the drilled OH interval penetrated significantly less net sands than originally planned. The results on this single well trial seem to corroborate the theory posed, however it is recognized that more data is required to be certain of its results, and that will only come with time, as well performance is measured and compared with other wells that did not use the same technology. The novelty of this new technology is the ability to obtain a better displacement of the OH, leading to a better breaker action and well cleanup in OH completions. Although the trial well was an injector well, the technology is equally applicable to producer wells. The paper will cover the problem description, installation procedures, development and testing of the technology, design aspects of using the technology and the successful implementation in the trial well.

Performance Enhancement, Creativity and Mental Training

2003 ◽  
Author(s):  
M. Bar-Eli ◽  
O. Lowengart ◽  
J. Goldberg ◽  
S. Epstein ◽  
R. D. Fosbury
Keyword(s):  
Performance Enhancement ◽  
Mental Training

Effective performance improvement of organic thin film transistors with multi-layer modifications

2020 ◽  
Vol 91 (3) ◽  
pp. 30201
Author(s):  
Hang Yu ◽  
Jianlin Zhou ◽  
Yuanyuan Hao ◽  
Yao Ni
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
Performance Enhancement ◽  
Organic Thin Film Transistors ◽  
Electrical Performance ◽  
Hole Injection ◽  
Organic Thin Film ◽  
Effective Performance ◽  
Significant Performance ◽  
P Type

Organic thin film transistors (OTFTs) based on dioctylbenzothienobenzothiophene (C8BTBT) and copper (Cu) electrodes were fabricated. For improving the electrical performance of the original devices, the different modifications were attempted to insert in three different positions including semiconductor/electrode interface, semiconductor bulk inside and semiconductor/insulator interface. In detail, 4,4′,4′′-tris[3-methylpheny(phenyl)amino] triphenylamine (m-MTDATA) was applied between C8BTBTand Cu electrodes as hole injection layer (HIL). Moreover, the fluorinated copper phthalo-cyanine (F16CuPc) was inserted in C8BTBT/SiO2 interface to form F16CuPc/C8BTBT heterojunction or C8BTBT bulk to form C8BTBT/F16CuPc/C8BTBT sandwich configuration. Our experiment shows that, the sandwich structured OTFTs have a significant performance enhancement when appropriate thickness modification is chosen, comparing with original C8BTBT devices. Then, even the low work function metal Cu was applied, a normal p-type operate-mode C8BTBT-OTFT with mobility as high as 2.56 cm2/Vs has been fabricated.

Preculaatities of evaluation of the effectiveness of flow deflection technologies

2018 ◽  
pp. 93-101
Author(s):  
A. A. Kazakov ◽  
V. V. Chelepov ◽  
R. G. Ramazanov
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Production Well ◽  
Oil Companies ◽  
Efficiency Calculation ◽  
Petroleum Companies ◽  
Flow Deflection ◽  
Recovery Methods

The features of evaluation of the effectiveness of flow deflection technologies of enhanced oil recovery methods. It is shown that the effect of zeroing component intensification of fluid withdrawal leads to an overestimation of the effect of flow deflection technology (PRP). Used in oil companies practice PRP efficiency calculation, which consists in calculating the effect on each production well responsive to subsequent summation effects, leads to the selective taking into account only the positive components of PRP effect. Negative constituents — not taken into account and it brings overestimate over to overstating of efficiency. On actual examples the groundless overstating and understating of efficiency is shown overestimate at calculations on applied in petroleum companies by a calculation.

Performance enhancement of normal contact ratio gearing system through correction factor

2019 ◽  
Vol 13 (3) ◽  
pp. 5242-5258
Author(s):  
R. Ravivarman ◽  
K. Palaniradja ◽  
R. Prabhu Sekar
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Correction Factor ◽  
Bending Strength ◽  
Performance Enhancement ◽  
Transmission Ratio ◽  
Contact Ratio ◽  
Element Analysis ◽  
Normal Contact ◽  
Root Region

As lined, higher transmission ratio drives system will have uneven stresses in the root region of the pinion and wheel. To enrich this agility of uneven stresses in normal-contact ratio (NCR) gearing system, an enhanced system is desirable to be industrialized. To attain this objective, it is proposed to put on the idea of modifying the correction factor in such a manner that the bending strength of the gearing system is improved. In this work, the correction factor is modified in such a way that the stress in the root region is equalized between the pinion and wheel. This equalization of stresses is carried out by providing a correction factor in three circumstances: in pinion; wheel and both the pinion and the wheel. Henceforth performances of this S+, S0 and S- drives are evaluated in finite element analysis (FEA) and compared for balanced root stresses in parallel shaft spur gearing systems. It is seen that the outcomes gained from the modified drive have enhanced performance than the standard drive.

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