Novel Approach to Matrix Corrections in Complex Khuff Deep Gas Reservoirs, offshore Abu Dhabi

2019 ◽  
Author(s):  
Pradeep Menon ◽  
Stefan Steiner ◽  
Carey Mills ◽  
Mahmoud Basioni ◽  
Laurent Mosse ◽  
...  
Keyword(s):  
Abu Dhabi ◽  
Gas Reservoirs ◽  
Novel Approach

scholarly journals A novel approach for using silica nanoparticles in a proppant pack to fixate coal fines

2020 ◽  
Vol 60 (1) ◽  
pp. 88 ◽  
Author(s):  
Faisal Ur Rahman Awan ◽  
Alireza Keshavarz ◽  
Hamed Akhondzadeh ◽  
Sarmad Al-Anssari ◽  
Stefan Iglauer
Keyword(s):  
Silica Nanoparticles ◽  
Active Surface ◽  
High Specific Surface Area ◽  
Gas Reservoirs ◽  
Particle Counter ◽  
Pump Failure ◽  
Highly Active ◽  
Novel Approach ◽  
Mechanical Pump ◽  
Coal Fines

Hydraulic fracturing operations in coal seam gas reservoirs are highly prone to release coal fines. Coal fines inevitably cause mechanical pump failure and permeability damage as a result of their hydrophobicity, aggregation in the system and pore-throat blockage. One approach to affix these coal fines at their source, and to retard generation, is to introduce a nanoparticle-treated proppant pack. Thus, this research explores coal fines retention (known as adsorption) in a proppant pack using nanoparticles. In the study, the electrolytic environment, pH, flow rate, temperature and pressure were kept constant, while the variables were concentration of silica nanoparticles (0–0.1 wt%) and coal fines concentration (0.1–1 wt%). The objective was to identify silica nano-formulations that effectively fixate coal fine dispersions. Subsequently, the coal suspensions flowed through a glass-bead proppant pack treated with and without nanoparticles, and were then analysed via a particle counter. The quantitative results from particle counter analysis showed that the proppant pack with nanoparticle treatment strongly affected the fixation ability of coal fines. The proppant pack without nanoparticle treatment showed up to 30% adsorption and flowed through the proppant untreated, while proppant pack treated with nanoparticles showed up to 74% adsorption; hence, more exceptional affixation ability to the coal fines. Further, the results indicated that the zeta-potential of silica nanoparticles at higher salinity became unstable, i.e. approximately –20 mV; this low value helped the proppant pack treated with nanoparticles to attach coal fines to it. The ability of nanoparticles to adsorb coal fines is due to their highly active surface, and high specific surface area.

A Novel Approach for Stimulation of Heterogeneous Thin Layered Reservoir in an Offshore Field, Abu Dhabi

2016 ◽  
Author(s):  
S. F. Nofal ◽  
F. Ahmad ◽  
A. A. Al Alyak ◽  
S. S. AL-Mansouri ◽  
A. Husain ◽  
...  
Keyword(s):  
Abu Dhabi ◽  
Novel Approach ◽  
Offshore Field ◽  
Stimulation Of

Case Study of Underbalance Coiled Tubing Drilling to Increase Well Productivity and Ultimate Recovery in Tight Gas Reservoir Onshore Field, Abu Dhabi

2021 ◽  
Author(s):  
Abdelhak Ladmia ◽  
Martin Culen ◽  
Abdulla Bakheet Al Katheeri ◽  
Fahad Mustfa Al Hosani ◽  
Graham F. Edmonstone ◽  
...  
Keyword(s):  
United Arab Emirates ◽  
Drilling Fluid ◽  
Abu Dhabi ◽  
Christmas Tree ◽  
Tight Gas ◽  
Gas Reservoirs ◽  
Reservoir Performance ◽  
Coiled Tubing ◽  
Underbalanced Drilling ◽  
Tight Gas Reservoir

Abstract Coiled Tubing Drilling (CTD) has been growing and developed rapidly through the last two decades. There have been numerous highly successful applications of CTD technology in Alaska, Canada, Oman and the United Arab Emirates (Sharjah Sajaa and Dubai Murgham fields), among other places. Currently, Saudi Arabia has undertaken a campaign for the last seven years that has shown successful results in gas reservoirs. ADNOC initiated a trial Coiled Tubing Underbalanced Drilling (CTUBD) project in the onshore tight gas reservoirs in Abu Dhabi, United Arab Emirates beginning operations 1-December-2019. The initial trial will consist of three (3) wells. The purpose of the trial is to assess the suitability of CTUBD for drilling the reservoir sections of wells in these fields, and further application in others. The reason for choosing coiled tubing for drilling the reservoir sections is based upon the high H2S content of the reservoir fluids and the premise that HSE can be enhanced by using a closed drilling system rather than an open conventional system. The three wells will be newly drilled, cased and cemented down to top reservoir by a conventional rig. The rig will run the completion and Christmas tree before moving off and allowing the coiled tubing rig to move onto the well. The coiled tubing BOPs will be rigged up on top of the Christmas tree and a drilling BHA will be deployed through the completion to drill the reservoir lateral. The wells will be drilled underbalanced to aid reservoir performance and to allow hole cleaning with returns being taken up the coiled tubing / tubing annulus. The returns will be routed to a closed separation system with produced gas and condensate being primarily exported to the field plant via the production line, solids sparge to a closed tank or pit and the drilling fluid re-circulated. The primary drilling fluid will be treated water; however, nitrogen may be required for drilling future wells in the field and will be required regardless for purging gas from the surface equipment during operations. A flare will also be required for emergency use and for start-up of drilling. If the trial proves a success, a continuous drilling plan will be put in place.

Tight Gas Reservoirs; Challenges for Appraisal and Development, Case History in Abu Dhabi Oil Company for Onshore Operations (ADCO) Fields

2012 ◽  
Author(s):  
Osama Amin Al Shaarawy ◽  
Fatima Al Ameri ◽  
Brahim Medjani ◽  
Alex De Castro ◽  
Abdulla Al Belooshi
Keyword(s):  
Case History ◽  
Abu Dhabi ◽  
Tight Gas ◽  
Gas Reservoirs ◽  
Tight Gas Reservoirs ◽  
Oil Company
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