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.

scholarly journals High concentrations of dried sorghum stalks as a biomass feedstock for single cell oil production by Rhodosporidium toruloides

2015 ◽  
Vol 8 (1) ◽  
pp. 6 ◽  
Author(s):  
Leonidas Matsakas ◽  
Nemailla Bonturi ◽  
Everson Miranda ◽  
Ulrika Rova ◽  
Paul Christakopoulos
Keyword(s):  
Single Cell ◽  
Oil Production ◽  
Rhodosporidium Toruloides ◽  
Biomass Feedstock ◽  
Single Cell Oil ◽  
High Concentrations

On the penetration of tubular drill pipes in horizontal oil wells

2004 ◽  
Vol 218 (9) ◽  
pp. 1063-1081 ◽  
Author(s):  
I McCourt ◽  
T Truslove ◽  
J Kubie
Keyword(s):  
Drill Pipe ◽  
Experimental Studies ◽  
Horizontal Wells ◽  
Oil Wells ◽  
Scale Model ◽  
Coiled Tubing ◽  
Frictional Forces ◽  
Drill Pipes ◽  
Maximum Penetration ◽  
Remedial Work

To carry out remedial work in oil wells through the production tubing string, a method using a continuous length of steel tubing or coiled tubing is used. Furthermore, coiled tubing can also be used for drilling and extending existing wells. In horizontal wells, substantial frictional forces are generated which resist the motion of the tubular drill pipe as it is pushed into the well. As the penetration increases, the frictional forces arising from the contact of the tubing with the inner casing wall increase too, and the tubular pipe buckles. The buckling is initially sinusoidal but eventually transforms into helical. At this point the force required to push the tubular drill pipe rises dramatically, and the maximum penetration is then rapidly reached. To date, scale model experimental studies on horizontal wells have not reproduced the actual conditions occurring in the wells. A new experimental rig has been designed that allows for the simulation and observation of all significant parameters. An analytical model has also been developed which is in excellent agreement with the experimental data. Governing modelling parameters have been identified which suggest ways to increase the penetration of tubular drill pipes in production oil wells.

Underbalanced Perforating with 800-ft Guns Completed in Single Trip with Fiber-Optic-Enabled Coiled Tubing: A Case Study from Jambaran Field, East Java, Indonesia

2021 ◽  
Author(s):  
Ibnu Maulana ◽  
Bambang Purwanto ◽  
Doni Arief Makriva ◽  
Genie Ageng Sugiarto ◽  
Diah Setianti Kuswardani ◽  
...  
Keyword(s):  
Real Time ◽  
Fiber Optics ◽  
Technology Implementation ◽  
Fiber Optic ◽  
Risk Mitigation ◽  
Gas Production ◽  
Coiled Tubing ◽  
Fit For Purpose ◽  
Strategic Project

Abstract Coiled tubing (CT) equipped with fiber optics and real-time downhole telemetry and a fit-for-purpose CT tower were used in underbalanced perforating operations in six wells in Indonesia; each operation involved 800 ft of perforating guns, and each was completed in a single trip. The reservoir is thick, with high permeability and characterized by high content of CO2 and H2S. The underbalanced perforating technique was deemed fundamental to minimize formation damage in the near-wellbore area, and the campaign was part of a national strategic project to develop a block's main reserve to supply gas to drive the national economy. Each well had to be completed with minimum of an 800-ft perforation interval to deliver an average of 60 MMscf/D gas production for 16 years plateau with up to 34% CO2 content and 10,000-ppm H2S. The traditional method of e-line overbalanced perforating in such harsh environment became inefficient because of the number of runs required, which can be as high as 40 runs per well. CT-conveyed perforating guns and a completion insertion retrieval of equipment under pressure (CIRP) system were chosen to execute the task. The fiber-optic CT real-time telemetry system was selected to improve downhole depth accuracy, confirm the underbalance condition, and provide real-time confirmation when the 800 ft of guns detonated downhole. To execute the six-well campaign safely, a customized 100-ft CT tower was brought into the country. Because this was the first in-country application for fiber-optic-enabled CT in single-trip with an 800-ft underbalanced perforation interval, thorough planning and preparation were critical for a successful campaign. Considering the high gas rate, high CO2, and H2S content, a downhole lubricator valve was added as additional barrier during undeployment, and an H2S and CO2 inhibitor was used to protect CT string integrity. Another risk mitigation plan was to utilize real-time CT inspection to monitor the CT integrity and condition throughout the job. Slickline deployment was used in first two wells to deploy multiple guns into the well, but this was deemed inefficient. The CT deployment method was used to complete the campaign. The project comprised a total of 2,200 operating hours, 29 CT runs, and 4,969 ft of guns in six trips with 917 ft as the longest interval. All six wells were completed with no HSE events, no automotive incidents, 98% operational efficiency, and 21% faster than planned duration. This successful six-well campaign represents a first in-country application, which contributed to developing this main gas reserve. The campaign provides lessons for job planning and preparation, technology implementation, execution, and continuous improvement, which can be implemented in similar projects in Indonesia and around the region.

High-Profile Rigless Well Interventions with Coiled Tubing Tower

2016 ◽  
Author(s):  
Robert Gaidanov ◽  
Anton Burov ◽  
Yerlan Zhumagaliyev ◽  
Hani Elkurd
Keyword(s):  
High Profile ◽  
Coiled Tubing

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

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
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