Successful Implementation of Zirconate Borate Based Dual Crosslinked Gel and Continuous Mixing System During Proppant Fracturing Treatment in a Complex High Temperature and High Pressure Sandstone Gas Reservoir in Saudi Arabia that Exceeded the Well Objective and Showed Substantial Increase in Operational Efficiency - A Case Study

Driweesh, Saad M.; Al-Atwi, Mohammed A.; Malik, Ataur R.; Olarte, Jorge E. Duarte; Jauregui, Jairo Alonso Leal; Bolarinwa, Simeon

doi:10.2523/16664-ms

Cited by 4 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There are two main types of crosslinkers: boron-based crosslinkers and metallic crosslinkers and they have been studied extensively by many authors throughout the years [ 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 ]. These two types of crosslinkers can be used individually or in combination to complement the weaknesses of each other [ 37 , 38 ].…”

Section: Introductionmentioning

confidence: 99%

Insights on Potential Formation Damage Mechanisms Associated with the Use of Gel Breakers in Hydraulic Fracturing

Almubarak

AlKhaldi

et al. 2020

Polymers

View full text Add to dashboard Cite

Hydraulic fracturing using water-soluble polymers has been extensively used to enhance the productivity of oil and gas wells. However, the production enhancement can be significantly impaired due to polymer residue generated within the proppant pack in the created fractures. This work describes an approach to establish a suitable fracturing fluid cleanup process by characterizing broken polymer residues generated from the use of different gel breaker types. Commonly used gel breakers such as inorganic oxidizers (bromate and persulfate salts), specific enzymes, and acids were evaluated in this work. The influence of each gel breaker was examined using High-Pressure/High-Temperature (HP/HT) rheometer, aging cells, zeta potential, Gel Permeation Chromatography (GPC), and Environmental Scanning Electron Microscope/Energy Dispersive X-ray Spectroscopy (ESEM/EDS). Experiments were performed on a carboxymethylhydroxypropyl guar (CMHPG) fracturing fluid at temperatures up to 300 °F. The developed GPC methodology showed that the size of the broken polymer chains was mainly dependent on the type of gel breakers used. Moreover, laboratory tests have revealed that some gel breakers may negatively influence the performance of polymeric clay stabilizers. Additionally, this work showed damaging precipitations that can be generated due to the interactions of gel breakers with H2S.

show abstract

Section: Introductionmentioning

confidence: 99%

Insights on Potential Formation Damage Mechanisms Associated with the Use of Gel Breakers in Hydraulic Fracturing

Almubarak

AlKhaldi

et al. 2020

Polymers

View full text Add to dashboard Cite

show abstract

Encapsulated breakers vs. oxidizers: Which is best for Guar Gum fluids?

Asmorowati,

Kristanto,

Helmy

et al. 2024

2nd International Conference Series on Science, Engineering, and Technology (Icsset) 2022

View full text Add to dashboard Cite

Realistic Fracture Conductivity Calculation Using Well Performance Data in Saudi Arabian Deep Gas Reservoirs

et al. 2013

View full text Add to dashboard Cite

The actual fracture conductivity contributing to gas flow after a proppant treatment is usually much lower than what is reported in the laboratory tests. This is because the ideal conductivity values can be impaired by numerous factors in the reservoir conditions – from high unconfined compressive strength to condensate yield – that cannot be fully captured in the laboratory measurements. Although there are many publications in the literature discussing this issue and software in the industry that predict certain percentage decreases in conductivity due to various reasons, these results are usually specific to certain reservoirs, formations, and laboratory tests and cannot be extrapolated or used for all reservoirs. To understand and compute actual conductivity values in Saudi Arabian gas reservoirs stimulated by proppant fracturing, a new workflow is proposed. The workflow involves using all available data to first calculate the actual fracture geometry using a mass balance and pressure matching. Subsequently, fracture conductivity is computed from another standard method, such as the Cinco-Ley correlation; and using industry software to estimate realistic conductivity values at static and dynamic conditions using closure pressure, actual well performance, and bottomhole flow pressure measurements. A range of fracture conductivity is computed during initial and later periods by matching the well performance data. The calculations show the fracture conductivity achieved after a fracture treatment at reservoir conditions and also how the values change during the production period of a well. Later, correlations relating to productivity increases with reservoir rock and pumping properties can be used to optimize fracture treatments such that a high rate can be maintained after a fracture treatment.

show abstract

Cited by 4 publications

References 0 publications

Insights on Potential Formation Damage Mechanisms Associated with the Use of Gel Breakers in Hydraulic Fracturing

Insights on Potential Formation Damage Mechanisms Associated with the Use of Gel Breakers in Hydraulic Fracturing

Encapsulated breakers vs. oxidizers: Which is best for Guar Gum fluids?

Realistic Fracture Conductivity Calculation Using Well Performance Data in Saudi Arabian Deep Gas Reservoirs

Contact Info

Product

Resources

About