Reactivating a Tight Carbonate Reservoir in the Greater Burgan Field: Challenges, Options and Solutions

Chimmalgi, Vishvanath Shivappa; Humoud, Jamal Al; Al-Sabea, Salem; Gazi, Naz H.; Bardalaye, Jayanta; Mudavakkat, Anandan; Al-Enezi, H.; Ahsan, J.; Abdulrazzaq, Eman; Tirkey, Naween; Kotecha, Rohitkumar; Snasiri, Fatemah; Jalan, Shiv; Zaabi, R. Al; Al-Dousari, Mohamad Abdullah; Al-Othman, Mohammad; Al-Houti, Naser; Benamer, N.; Liu, Hai; Elsherif, Tamer; Surjaatmadja, Jim Basuki; Elmofti, Mohamed

doi:10.2118/164248-ms

Cited by 6 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A similar approach can be taken up for AR-F as well. Referring to the Middle Eastern tight carbonate reservoir development strategies (Salamy et al, 2008;Chimmalgi et al, 2013;Alyan et al, 2015;Sen et al, 2021) we recommend that coil tubing (CT) carried a gun and acid stimulation will be helpful to activate this tight reservoir. Saleri et al (2004) discussed the utility of MRC (maximum reservoir contact) wells to achieve optimum reservoir performance and economic production rates from tight carbonate reservoirs in the Shaybah field of Saudi Arabia.…”

Section: Future Scope and Recommendationsmentioning

confidence: 99%

Geomechanical assessment of the Lower Turonian AR-F limestone Member, Abu Gharadig Field, Egypt: Implications for unconventional resource development

Farouk

Sen²,

Abu-Alam

et al. 2022

Front. Earth Sci.

View full text Add to dashboard Cite

This study evaluates the unconventional reservoir geomechanical characteristics of the Lower Turonian Abu Roash-F (AR-F) carbonates from the Abu Gharadig field, onshore Egypt, which has not been attempted before. The interval dominantly consists of planktic foraminifera and micrite matrix. The AR-F marine carbonate is organic-rich (0.59–3.57 wt% total organic carbon), thermally mature (435–441°C Tmax) and falls within the oil generation window. The studied interval is very tight with up to 2.6% porosity and 0.0016–0.0033 mD permeability with the wireline log-based brittleness index ranging between 0.39–0.72 which indicates a less brittle to brittle nature. AR-F exhibits a hydrostatic pore pressure gradient with minimum horizontal stress (Shmin) varying between 0.66–0.76 PSI/ft. Safe wellbore trajectory analysis was performed for deviated and horizontal wells to infer the mud pressure gradients required to avoid wellbore instabilities. Based on the inferred in-stress magnitudes and considering an NNE regional maximum horizontal stress orientation, none of the fractures are found to be critically stressed at present day. To produce from the AR-F, hydraulic fracturing is necessary, and we infer a minimum pore pressure increment threshold of 1390 PSI by fluid injection to reactivate the vertical fractures parallel to regional minimum horizontal stress azimuth.

show abstract

Section: Future Scope and Recommendationsmentioning

confidence: 99%

Geomechanical assessment of the Lower Turonian AR-F limestone Member, Abu Gharadig Field, Egypt: Implications for unconventional resource development

Farouk

Sen²,

Abu-Alam

et al. 2022

Front. Earth Sci.

View full text Add to dashboard Cite

show abstract

Petrophysical Characterization of the Turonian and Cenomanian Intervals in the Abu Gharadig Field, Western Desert, Egypt: Inferences on Reservoir Quality and Resource Development

Farouk

Sen²,

Abuseda

et al. 2022

Nat Resour Res

View full text Add to dashboard Cite

ADCO First Hydraulic Fracturing Campaign Strategy in Unconventional and Tight Migrated Oil Reservoirs from Planning, Designing to Execusion, Challenges and Mitigation

Hegazy

Noufal

Shedid³

2015

Day 4 Thu, November 12, 2015

View full text Add to dashboard Cite

Unconventional reservoirs in North America showed excellent results through the late decade. Tight carbonate and source rocks in the UAE with very low clay content involve more comparative challenges. Evaluation and application of Fracturing technology on these reservoirs require accurate designing, planning and execution. These three phases are followed by a unique strategy for cost optimization especially when oil price drops. To enable a detailed understanding of these formations and the applicable fracturing methodology, a complete study and strategic map is required. Unconventional reservoirs in North America have been studied extensively. The challenge is to adapt this technology locally to our tight reservoirs at ADCO-UAE. Creating a fracturing workflow and strategy that is applicable to the tight and unconventional formations in the UAE is the main target. Fracturing technology evaluation of these reservoirs has their own set of challenges, ranging from creating valid geomechanical properties to building the Mechanical Earth Modeling (MEM) for successful execution. Screening of suitable candidates as sweet spots and unique data gathering under cost effective programs is presented in details. The first five wells' plan, design and execution are highlighted. Furthermore, the integration of fracturing steps and the lessons learned are elaborated in this paper. The paper highlights complete evaluation of the fracturing process of tight carbonate reservoirs that reveals the unique challenge of developing these reservoirs from a Reservoir Quality point of view. Furthermore, the paper presents complete study, strategic map, screening, fracturing workflow, and strategy for several wells fractured.

show abstract

Reactivating a Tight Carbonate Reservoir in the Greater Burgan Field: Challenges, Options and Solutions

Cited by 6 publications

References 5 publications

Geomechanical assessment of the Lower Turonian AR-F limestone Member, Abu Gharadig Field, Egypt: Implications for unconventional resource development

Geomechanical assessment of the Lower Turonian AR-F limestone Member, Abu Gharadig Field, Egypt: Implications for unconventional resource development

Petrophysical Characterization of the Turonian and Cenomanian Intervals in the Abu Gharadig Field, Western Desert, Egypt: Inferences on Reservoir Quality and Resource Development

ADCO First Hydraulic Fracturing Campaign Strategy in Unconventional and Tight Migrated Oil Reservoirs from Planning, Designing to Execusion, Challenges and Mitigation

Contact Info

Product

Resources

About