Reviving Oil Production in a Mature Offshore Field Through a Downhole Coiled Tubing Completion

2016 ◽  
Author(s):  
P. Ramondenc ◽  
E. Franco Delgado ◽  
N. Molero ◽  
M. D. Almiron de Trujillo
Keyword(s):  
Oil Production ◽  
Coiled Tubing ◽  
Offshore Field

scholarly journals Occurrence of naphthenate deposition in crude oil production field offshore Niger Delta

2020 ◽  
Author(s):  
Opeyemi Lawal ◽  
Solomon A. Adekola ◽  
Akinsehinwa Akinlua
Keyword(s):  
Crude Oil ◽  
Metal Ions ◽  
Water Samples ◽  
Niger Delta ◽  
Produced Water ◽  
Oil Production ◽  
Acid Number ◽  
Total Acid ◽  
Offshore Field ◽  
High Possibility

AbstractCrude oil and produced water samples obtained from ten wells in an offshore field, Niger Delta, were analyzed, in order to determine the occurrence of naphthenates deposition in the field. Total acid number (TAN) and °API of the crude oil samples, pH and metal ions concentrations of the produced water samples were determined. The results revealed that TAN values ranged from 0.47 to 1.01 mgKOH/g with pH of 6.9–8.9, which were above established threshold. The metal ions concentrations especially for Ca++ and Na+ were relatively high. These imply a high possibility of metal-naphthenate precipitation in the oil production facilities in this field.

Coiled-Tubing Gas Lift System Doubled Oil Production from Al-Wafa Field

2019 ◽  
Author(s):  
Ayoub Sherik ◽  
Mohamed Ben Abdalla ◽  
Abdoallah Abdoalqader ◽  
Gumah Abusninah ◽  
Abdaldaem Ateya Abdaldaem ◽  
...  
Keyword(s):  
Oil Production ◽  
Coiled Tubing ◽  
Gas Lift

Successful Application of Underbalanced Coiled-Tubing Drilling in Horizontal Short-Radius Re-Entry Well to Enhance Oil Production in Hassi Messaoud Field, Algeria

2007 ◽  
Author(s):  
Maurizio Antonio Arnone ◽  
Bachir Ben Amor ◽  
Ali Ferhat ◽  
Rafik Messas ◽  
Michael Stulberg ◽  
...  
Keyword(s):  
Oil Production ◽  
Coiled Tubing

Optimizing Selective Stimulation Treatments Using Coiled Tubing and Fluidic Oscillator Yields Additional Oil Production From Carbonate Formations in Southern Mexico: Case Studies

2009 ◽  
Author(s):  
Juan Jose De la Fuente Rodriguez ◽  
Francisco Garcia Torres ◽  
Joel Vladimir Ulloa Gutierrez ◽  
J. Eduardo Soriano ◽  
Carlos Caballero
Keyword(s):  
Case Studies ◽  
Oil Production ◽  
Southern Mexico ◽  
Fluidic Oscillator ◽  
Selective Stimulation ◽  
Coiled Tubing ◽  
Carbonate Formations

Banyu Urip Upper Perforation Shut-off: A Success Story of Hydroformed Expandable Casing Patch Installation to Reduce GOR and Maximize Oil Production

2020 ◽  
Author(s):  
D. Saputra
Keyword(s):  
Oil Production ◽  
Expansion Method ◽  
High Profile ◽  
Coiled Tubing ◽  
No Formation ◽  
Resistance Alloy ◽  
Fit For Purpose ◽  
High Concentrations ◽  
Remedial Work ◽  
Gas Tight

ExxonMobil Cepu Limited (EMCL), as the operator of Banyu Urip field in Cepu Block, Indonesia, observed several oil wells with high Gas Oil Ratio (GOR) after several years of production. Oil production curtailment was expected due to limited surface gas handling capacity. Additional stand-off against reservoir gas cap shall be established by performing top perforation interval shut-off to reduce GOR and maximize oil production. Perforation shut-off became more challenging due to high concentrations of H2S and CO2, relatively high reservoir temperature, long perforation interval, and total losses experience. The remedial solution required a V0 “gas-tight” qualification, live well execution, induced minimum to no formation damage, and provided minimum reduction of tubular Inner Diameter (ID) post remedial work to avoid significant production impact and allow future wireline tools deployment. Considering the high profile of Banyu Urip field, which currently produces ~29% of Indonesia’s oil production, EMCL selected the fit-for-purpose remedial method with the highest probability of success. The hydroformed expandable casing patch (patch) with Corrosion Resistance Alloy (CRA) material and its top-down expansion method was evaluated and selected. The re-designing of inflatable element was performed to improve durability in high temperature and verified by laboratory testing. Patches were installed and overlapped to cover the top perforation interval. Seals on top and bottom of the patch extremities formed V0 “gas-tight” sealing mechanism against the casing. The patches were deployed utilizing a smart coiled tubing. All patches were successfully installed as per plan. The wells were brought online with significantly reduced GOR post patches installation. This was the first installation of the patch utilizing smart coiled tubing and ~90 feet Coiled Tubing (CT) tower in sour wells within any ExxonMobil affiliates. The detailed technical preparation, strong safety culture and leadership as well as relentless learnings application have delivered a successful project to reduce Banyu Urip wells GOR and enable EMCL to maximize oil production.

Adaptability Study on Plugging Thief Zones with Asphalt Particle in Polymer Flooding Offshore Field

2014 ◽  
Author(s):  
K.. Xiao ◽  
H.. Jiang ◽  
Q.. Wang ◽  
H.. Wang ◽  
D.. Zhao
Keyword(s):  
Numerical Model ◽  
Numerical Simulations ◽  
Oil Recovery ◽  
Negative Impact ◽  
Oil Production ◽  
Polymer Flooding ◽  
High Permeability ◽  
Sweep Efficiency ◽  
Water Cut ◽  
Offshore Field

Abstract Polymer flooding has been proved to be an effective method for improving oil recovery in offshore field of Bohai area, but thief zones with high permeability could make the effect of polymer on oil production worse. To try to minimize the negative impact brought by thief zones, we apply asphalt particle to plug the high permeability regions to compel subsequent displacement fluid change flowing direction to enhance sweep efficiency. Its adaptability is studied by a series of parallel cores flooding. Besides, numerical simulations are carried out to optimize pattern of asphalt particle injection and evaluate the performances of asphalt flooding in a typical well group in Bohai area in a numerical model. In addition to performances of water cut and oil recovery for the parallel core flooding, we present dynamic features of remaining oil from micro views detected by nuclear magnetic resonance. By plugging thief zone by asphalt flooding, oil production is improved. Production in small and medium pores is increased by asphalt flowing into big pores to exert strong resistance on them. Also, with numerical simulations, optimal way of injecting asphalt has been selected to lead the operation in field. Through observation of a typical well group under asphalt injection in numerical model based on real reservoir, the water-cut and oil production are decrease 9.7% and increase 29.1m3/d respectively. We conclude that asphalt particle has good capacity to plug thief zones to improve sweep efficiency of subsequent displacement fluid in polymer flooding field. In-depth understanding such mechanisms for asphalt particle behavior may be pivotal for enhancing oil recovery in polymer flooding reservoir containing thief zones.

Russian Oil: Production and Exports

2003 ◽  
pp. 136-146
Author(s):  
K. Liuhto
Keyword(s):  
Baltic Sea ◽  
Statistical Data ◽  
Oil Production ◽  
The Baltic Sea ◽  
North West ◽  
The North ◽  
Oil Transportation ◽  
Sea Ports ◽  
The Baltic

Statistical data on reserves, production and exports of Russian oil are provided in the article. The author pays special attention to the expansion of opportunities of sea oil transportation by construction of new oil terminals in the North-West of the country and first of all the largest terminal in Murmansk. In his opinion, one of the main problems in this sphere is prevention of ecological accidents in the process of oil transportation through the Baltic sea ports.

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