Successful Application of Swell Packer Technology to shut-off Water Production in Horizontal Wells - Case Studies from Onshore Abu Dhabi

2008 ◽  
Author(s):  
Ali Abdulla Aboukshem ◽  
Abdulla Bakheet Al Katheeri ◽  
Maher Mahmoud Kenawy
Keyword(s):  
Case Studies ◽  
Horizontal Wells ◽  
Abu Dhabi ◽  
Water Production

scholarly journals Downhole flow controllers in mitigating challenges of long reach horizontal wells: A practical outlook with case studies

2017 ◽  
Vol 8 (10) ◽  
pp. 97-110
Author(s):  
Jamal Chammout Omar ◽  
Ghosh Bisweswar ◽  
Yousef Alklih Mohamad
Keyword(s):  
Case Studies ◽  
Horizontal Wells ◽  
Flow Controllers

Successfully Delivered Drill-In, Clay-Free Fluid with Innovative Delayed Acid Breaker for the Longest Horizontal Wells in Offshore Abu Dhabi

2016 ◽  
Author(s):  
S. D Angelo ◽  
H. Shabaka ◽  
M. Hamed ◽  
M. Vinci ◽  
M. Abd El Salam
Keyword(s):  
Horizontal Wells ◽  
Abu Dhabi ◽  
Free Fluid

Advanced Well Completion Strategies to Improve Gas Production Deliverability in Marginal Tight Gas Reservoirs from an Onshore Abu Dhabi Gas Field

2021 ◽  
Author(s):  
Hajar Ali Abdulla Al Shehhi ◽  
Bondan Bernadi ◽  
Alia Belal Zuwaid Belal Al Shamsi ◽  
Shamma Jasem Al Hammadi ◽  
Fatima Omar Alawadhi ◽  
...  
Keyword(s):  
Hydraulic Fracturing ◽  
Horizontal Wells ◽  
Gas Production ◽  
Abu Dhabi ◽  
Tight Gas ◽  
Production Rates ◽  
Well Productivity ◽  
Gas Saturation ◽  
Well Design ◽  
The Impact

Abstract Reservoir X is a marginal tight gas condensate reservoir located in Abu Dhabi with permeability of less than 0.05 mD. The field was conventionally developed with a few single horizontal wells, though sharp production decline was observed due to rapid pressure depletion. This study investigates the impact of converting the existing single horizontal wells into single long horizontal, dual laterals, triple laterals, fishbone design and hydraulic fracturing in improving well productivity. The existing wells design modifications were planned using a near reservoir simulator. The study evaluated the impact of length, trajectory, number of laterals and perforation intervals. For Single, dual, and triple lateral wells, additional simulation study with hydraulic fracturing was carried out. To evaluate and obtain effective comparisons, sector models with LGR was built to improve the simulation accuracy in areas near the wellbore. The study conducted a detailed investigation into the impact of various well designs on the well productivity. It was observed that maximizing the reservoir contact and targeting areas with high gas saturation led to significant increase in the well productivity. The simulation results revealed that longer laterals led to higher gas production rates. Dual lateral wells showed improved productivity when compared to single lateral wells. This incremental gain in the production was attributed to increased contact with the reservoir. The triple lateral well design yielded higher productivity compared to single and dual lateral wells. Hydraulic fracturing for single, dual, and triple lateral wells showed significant improvement in the gas production rates and reduced condensate banking near the wellbore. A detailed investigation into the fishbone design was carried out, this involved running sensitivity runs by varying the number of branches. Fishbone design showed considerable increment in production when compared to other well designs This paper demonstrates that increasing the reservoir contact and targeting specific areas of the reservoir with high gas saturation can lead to significant increase in the well productivity. The study also reveals that having longer and multiple laterals in the well leads to higher production rates. Hydraulic fracturing led to higher production gains. Fishbone well design with its multiple branches showed the most production again when compared to other well designs.

A Novel Double-Group Crosslinked Hydrogel with High Thixotropy for Water Control in Horizontal Wells

SPE Journal ◽  
2020 ◽  
pp. 1-15
Author(s):  
Gang Li ◽  
Lifeng Chen ◽  
Meilong Fu ◽  
Lei Wang ◽  
Yadong Chen ◽  
...  
Keyword(s):  
Oil Recovery ◽  
Gelation Time ◽  
Horizontal Wells ◽  
Uniform Grid ◽  
Drilling Fluids ◽  
Water Production ◽  
Water Control ◽  
Recovery Coefficient ◽  
Metastable Structure ◽  
Control Water

Summary Horizontal wells that are completed with slotted liners often suffer from a severe water-production problem, which is detrimental to oil recovery. It is because the annulus between the slotted liners and wellbore cannot be fully filled with common hydrogels with poor thixotropy, which determines the ultimate hydrogel filling shape in the annulus. This paper presents a novel hydrogel with high thixotropy to effectively control water production in horizontal wells. This study is aimed at evaluating the thixotropic performance, gelation time, plugging performance, and degradation performance. The thixotropic performance of the new hydrogel was also investigated by measuring its rheological properties and examining its microstructures. It was found that the new hydrogel thickened rapidly after shearing. Its thixotropic recovery coefficient was 1.747, which was much higher than those of traditional hydrogels. The gelation time can be controlled in the range of 2 to 8 hours by properly adjusting the concentrations of the framework material, crosslinker, and initiator. The hydrogel could be customized for mature oil reservoirs, at which it was stable for more than 90 days. A series of laboratory physical modeling tests showed that the breakthrough pressure gradient and the plugging ratio of the hydrogel in sandpacks were higher than 9.5 MPa/m and 99%, respectively. At the same time, it was found that the hydrogel has good degradation properties; the viscosity of the hydrogel breaking solution was 4.22 mPa·s. Freeze-etching scanning-electron-microscopy examinations indicated that the hydrogel had a uniform grid structure, which can be broken easily by shear and restored quickly. This led to the remarkable thixotropic performance. The formation of a metastable structure caused by the electrostatic interaction and coordination effect was considered to be the primary reason for the high thixotropy. The successful development of the new thixotropic hydrogel not only helps to control water production from the horizontal wells, but also furthers the thixotropic theory of hydrogel. This study also provides technical guidelines for further increasing the thixotropies of drilling fluids, fracturing fluids, and other enhanced-oil-recovery polymers that are commonly used in the petroleum industry.

Fracturing Horizontal Wells to Offset Water Production

2007 ◽  
Author(s):  
M.Y. Soliman ◽  
L. East ◽  
J. Pyecroft
Keyword(s):  
Horizontal Wells ◽  
Water Production

Increased Recovery Using Autonomous Inflow Management

2019 ◽  
Author(s):  
Bernt S. Aadnøy ◽  
Beder Al Furati
Keyword(s):  
Oil Recovery ◽  
Horizontal Wells ◽  
Water Production ◽  
Active Devices ◽  
Considerable Portion ◽  
Master Thesis ◽  
Control Devices ◽  
Reservoir Simulator ◽  
The University ◽  
Viscosity Fluid

Abstract Inflow control devices (ICD) were first introduced 26 years ago on the Troll field. The main purpose was to reduce water coning to delay water production. This technology is commonly used in long horizontal wells. An ICD is a passive orifice. More recently several types of active devices have been developed. The choking effect here depends on viscosity, fluid density or pressure contrasts. They are called autonomous devices as they react on changes inside the reservoir, without signal from surface. The main objective is to maximize oil recovery, before water production is so large that the wells are abandoned. A master thesis study conducted at the University of Stavanger together with Neptune Energy has investigated the applications of passive and autonomous inflow devices, to see which tool actually provides the highest oil recovery. The analysis was based on existing products and tools under development. Areas where a specific tool works most optimally were identified. Wells from a producing field were used as candidates for the analysis. A considerable portion of the work was to build a realistic reservoir simulator from production data. This paper will present the work and discuss the results of the study.

Operational Aspects of Drilling and Completing Horizontal Wells Offshore Abu Dhabi

1992 ◽  
Author(s):  
J.F. Bowen ◽  
M.M. Hassan
Keyword(s):  
Horizontal Wells ◽  
Abu Dhabi ◽  
Operational Aspects

Water production logging in horizontal wells

1999 ◽  
Vol 22 (4) ◽  
pp. 217-227 ◽  
Author(s):  
C.W Morris ◽  
C.P Lenn ◽  
I.J Albertin
Keyword(s):  
Horizontal Wells ◽  
Water Production

New Production Logging Tool for Inflow Profiling of Low-Rate Oil and Water Horizontal Wells: Case Studies of Field Testing an Experimental Prototype

2017 ◽  
Author(s):  
D. Miklashevskiy ◽  
V. Shako ◽  
I. Borodin ◽  
V. Mukhin ◽  
R. Skochelyas ◽  
...  
Keyword(s):  
Case Studies ◽  
Horizontal Wells ◽  
Field Testing ◽  
New Production ◽  
Experimental Prototype ◽  
Logging Tool ◽  
Low Rate
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