Impact of different additives on low-temperature recrosslinkable preformed particle gel to mitigate fluid losses in fractured formations

Ahdaya, Mohamed; Brahim, Ali Al; Song, Tao; Bai, Baojun; Eriyagama, Yugandhara; Schuman, Thomas P.; Zhang, Yin

doi:10.1016/j.geoen.2023.211597

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…The research conducted by Zhu et al [ 47 ] indicated that the gel prepared from an AM/NVP/AMPS terpolymer using a high-temperature-resistant crosslinker exhibited excellent heat resistance. Ahdaya et al [ 48 ] found that adding additives such as mica, walnut shells, and bentonite to PPGs significantly enhanced their strength. Durán-Valencia et al [ 49 ] incorporated modified bentonite (MB) dispersion into the AM/NVP/AMPS system and synthesized modified PPGs through free radical polymerization at room temperature.…”

Section: The Current Research Statusmentioning

confidence: 99%

Progress of Research into Preformed Particle Gels for Profile Control and Water Shutoff Techniques

Ma,

Li,

Liu

et al. 2024

Gels

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Gel treatment is an economical and efficient method of controlling excessive water production. The gelation of in situ gels is prone to being affected by the dilution of formation water, chromatographic during the transportation process, and thus controlling the gelation time and penetration depth is a challenging task. Therefore, a novel gel system termed preformed particle gels (PPGs) has been developed to overcome the drawbacks of in situ gels. PPGs are superabsorbent polymer gels which can swell but not dissolve in brines. Typically, PPGs are a granular gels formed based on the crosslinking of polyacrylamide, characterized by controllable particle size and strength. This work summarizes the application scenarios of PPGs and elucidates their plugging mechanisms. Additionally, several newly developed PPG systems such as high-temperature-resistant PPGs, re-crosslinkable PPGs, and delayed-swelling PPGs are also covered. This research indicates that PPGs can selectively block the formation of fractures or high-permeability channels. The performance of the novel modified PPGs was superior to in situ gels in harsh environments. Lastly, we outlined recommended improvements for the novel PPGs and suggested future research directions.

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Section: The Current Research Statusmentioning

confidence: 99%

Progress of Research into Preformed Particle Gels for Profile Control and Water Shutoff Techniques

Ma,

Li,

Liu

et al. 2024

Gels

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“…Reportedly, 20−25% of the world's oil fields experienced drilling fluid leakage during drilling operations. 3,4 The loss of drilling fluids can cause severe accidents such as loss of well control, instability of borehole, stuck pipes, and formation damage, which will lead to more nonoperation time and cost millions of dollars. 5−7 Particle gels are one type of hydrogel widely used to solve this problem.…”

Section: Introductionmentioning

confidence: 99%

“…During oil and gas production, hydrogels have been widely used in various stages of operation, such as water flowing profile control in oil recovery enhancing and lost circulation treatment during oil and gas well construction. , Lost circulation occurs mainly due to the presence of naturally fractures, caverns, or highly permeable pore space in formations, along with part or total loss of drilling fluid or cement slurries into the formation. Reportedly, 20–25% of the world’s oil fields experienced drilling fluid leakage during drilling operations. , The loss of drilling fluids can cause severe accidents such as loss of well control, instability of borehole, stuck pipes, and formation damage, which will lead to more nonoperation time and cost millions of dollars. − Particle gels are one type of hydrogel widely used to solve this problem. Mohammed et al developed a low-temperature recrosslinkable preformed particle gel material to control the circulating leakage of drilling fluid .…”

Section: Introductionmentioning

confidence: 99%

Application of Solvent-Assisted Dual-Network Hydrogel in Water-Based Drilling Fluid for Lost Circulation Treatment in Fractured Formation

Zheng,

Duan,

Zhuang

et al. 2023

ACS Omega

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During oil and gas well construction, lost circulation caused substantial nonoperation time and extra costs, and hydrogel, resilient and environmentally friendly, was one of the major types of material for lost circulation treatment. To migrate the weak bonding and hydrothermal degradation of conventional single network hydrogels, dual network (DN) hydrogel was prepared and immersed in solvents of polyethylene glycol (PEG), ethylene glycol, and glycerol. The swelling of DN gels at different temperatures was studied with water content and swelling rate tests, and the gel structural and morphology was characterized with attenuated total reflectance infrared spectroscopy (ATR-IR) and scanning electron microscopy test. Then, the compression test and fracture plugging performance test were conducted to study the strength of the gel. The results show that compared to those in ethylene glycol and glycerin, DN gel after immersion in PEG (DN-PEG) exhibits greater compression strength and better plugging performance even at high temperatures. The compression strength of DN-PEG was twice that of DN hydrogel before immersion, and its fracture plug breaking pressure can reach over 10.0 MPa. After undergoing hydrothermal treatment at 90 °C, the compression strength of the DN-PEG was nearly 20 times that of the DN hydrogel, and the fracture plug breaking pressure was still 2.81 MPa. According to ATR-IR spectroscopy, as the molecular weight of the solvent increases, more hydroxyl groups in the PEG have better ability to bind with hydrogen bonds, which greatly inhibits the swelling and polymer chain breakage, thereby reducing hydrothermal degradation in the strength of the dual-network hydrogel. Our work proposed an effective method to reduce the degradation of hydrogel in water at high temperature, and the prepared DN-PEG hydrogel was a promising material for lost circulation treatments in fractured formation.

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Design and experimental study on rheological behavior and sealing performance of shear sensitive fluids to control lost circulation during drilling

Nazemi,

Moghadasi,

Ashoori

2024

Geoenergy Science and Engineering

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Impact of different additives on low-temperature recrosslinkable preformed particle gel to mitigate fluid losses in fractured formations

Cited by 5 publications

References 12 publications

Progress of Research into Preformed Particle Gels for Profile Control and Water Shutoff Techniques

Progress of Research into Preformed Particle Gels for Profile Control and Water Shutoff Techniques

Application of Solvent-Assisted Dual-Network Hydrogel in Water-Based Drilling Fluid for Lost Circulation Treatment in Fractured Formation

Design and experimental study on rheological behavior and sealing performance of shear sensitive fluids to control lost circulation during drilling

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