Water Management in Mature Oil Fields using Preformed Particle Gels

Goudarzi, Ali; Zhang, Hao; Varavei, Abdoljalil; Hu, Yunpeng; Delshad, Mojdeh; Bai, Baojun; Sepehrnoori, Kamy

doi:10.2118/165356-ms

Cited by 17 publications

(4 citation statements)

References 11 publications

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“…Their properties allow particles to penetrate into highly-permeable intervals of the formation. PPGs can be applied both on the fracture and on sandpack reservoirs [ 52 , 53 , 54 ]. Depending on their structures, PPGs have different mechanical properties that determine particle penetration into the permeable interlayers of rock.…”

Section: Methodsmentioning

confidence: 99%

Review of Microgels for Enhanced Oil Recovery: Properties and Cases of Application

Ketova

Burin

Galkin

et al. 2022

Gels

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In todays’ world, there is an increasing number of mature oil fields every year, a phenomenon that is leading to the development of more elegant enhanced oil recovery (EOR) technologies that are potentially effective for reservoir profile modification. The technology of conformance control using crosslinked microgels is one the newest trends that is gaining momentum every year. This is due to the simplicity of the treatment process and its management, as well as the guaranteed effect in the case of the correct well candidate selection. We identified the following varieties of microgels: microspheres, thermo- and pH-responsible microgels, thin fracture of preformed particle gels, colloidal dispersed gels. In this publication, we try to combine the available chemical aspects of microgel production with the practical features of their application at oil production facilities. The purpose of this publication is to gather available information about microgels (synthesis method, monomers) and to explore world experience in microgel application for enhanced oil recovery. This article will be of great benefit to specialists engaged in polymer technologies at the initial stage of microgel development.

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Section: Methodsmentioning

confidence: 99%

Review of Microgels for Enhanced Oil Recovery: Properties and Cases of Application

Ketova

Burin

Galkin

et al. 2022

Gels

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“…After the expected time and under a certain temperature, the mixture reacts to form a gel that plugs the zone partially or fully. 71 Despite their popularity, many disadvantages were addressed such as a lack of gelation time control leading to an unpredictable depth of penetration, 73,74 dilution by formation water, 74−76 uncertainty of gelling due to shear in surface facilities and the reservoir, 35,77,78 and potential damage of low permeability unswept oil zone. 79 3.1.2.…”

Section: Challenges Of Gel Treatmentsmentioning

confidence: 99%

A Review of Recent Developments in Nanomaterial Agents for Water Shutoff in Hydrocarbon Wells

Ali,

Alabdrabalnabi,

Ramadan

et al. 2024

ACS Omega

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Reducing water production from hydrocarbon wells is one of the major requirements to prolong the life span of production wells. Gel treatment is commonly regarded as one of the traditional cost-effective methods for water shut-off applications. Different gel systems have been developed to overcome the challenges of performing a successful water shutoff treatment. Each gel system has its advantages and disadvantages. A new proposed technology is to enhance the gel performance by utilizing nanomaterials in its composition. Nanomaterials such as nanosilica, nanoclay, and graphene can significantly modify gel properties to improve plugging efficiency. This paper provides a brief review of the added value of using nanomaterials in the structure of polymer in situ gel, preformed particle−gel, and nanosilica-based fluid. Nanomaterials such as nanoclay, nanosilica, and nanographene are capable of adjusting the properties of in situ gel, such as control of gelation time (9−10) hours and enhancing gel strength up to 4.5 times. Nanomaterials also improved the swelling ratio of the preformed particle−gel by up to 400%, accompanied by increased gel strength. Notably, nanosilica-based gels exhibit an exceptional plugging efficiency (100%). Additionally, the paper discusses how modeling can be used to overcome operational challenges in terms of placement and plugging performance.

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“…Unlike traditional polymer gels, PPGs exhibit a lower swelling ratio in high-salinity water, leading to an increase in crosslinking density and enhanced thermal stability. The introduction of inorganic fillers and molecular structure design can improve their temperature resistance by up to 120 °C [ 5 , 10 , 11 , 12 ]. The properties of PPGs are influenced by their composition, salinity, pH, and temperature.…”

Section: Introductionmentioning

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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Water Management in Mature Oil Fields using Preformed Particle Gels

Cited by 17 publications

References 11 publications

Review of Microgels for Enhanced Oil Recovery: Properties and Cases of Application

Review of Microgels for Enhanced Oil Recovery: Properties and Cases of Application

A Review of Recent Developments in Nanomaterial Agents for Water Shutoff in Hydrocarbon Wells

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

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