Shape memory polyurethane as a wellbore strengthening material

Lashkari, Reza; Tabatabaei‐Nezhad, Seyyed Alireza; Husein, Maen M.

doi:10.1016/j.powtec.2021.11.001

Cited by 13 publications

(6 citation statements)

References 52 publications

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“…The bridge materials such as nutshells and calcium carbonates powder, are commonly used in plugging, but often fail to control heavy fluid losses effectively, [5][6][7][8][9] or result in repeated losses under pressure fluctuations, [21,22] due to absence of enough bonding strength among bridge materials in plugging zones. Recently, thermoplastic resins including ethylene vinyl acetate copolymer (EVA), [21] acrylonitrile butadiene styrene (ABS), polyamide 6 (PA6) and low-density polyethene (LDPE) [22] were developed as adhesive LCMs to control the recurrent losses.…”

Section: High-temperature Adhesive Propertymentioning

confidence: 99%

“…Reza Lashkari et al. [ 8–10 ] synthesized a thermoplastic shape memory polyurethane (SMPU) using polycaprolactone diol (PCL) as soft segment, and explored the SMPU as an LCM, which can be activated at 80 °C to seal wide fractures in wellbores. Moreover, Magzoub et al.…”

Section: Introductionmentioning

confidence: 99%

“…For example, Mansour et al [5] used semicrystalline poly (ethylene-co-methacrylic acid) as an expandable LCM, which can be triggered by a temperature of 70 °C to seal fractures and control fluid losses. Reza Lashkari et al [8][9][10] synthesized a thermoplastic shape memory polyurethane (SMPU) using polycaprolactone diol (PCL) as soft segment, and explored the SMPU as an LCM, which can be activated at 80 °C to seal wide fractures in wellbores. Moreover, Magzoub et al [6,[11][12][13][14] prepared a thermoset shape memory epoxy polymer (SMEP) with an activation temperature of 149 °C, through a reaction of epoxy (EPON 826) with rigid diamine (5-amino-1,3,3trimethylcyclohexanemethylamine, IPD).…”

Section: Introductionmentioning

confidence: 99%

“…These include that they can be used in relatively small sizes without plugging drilling tools, can adapt to fractures with different sizes, and especially can form a strong plug inside complex large fractures through sensitive activation, adaptable expansion, effective connection, and bridging. [5][6][7][8][9] In addition, thermoset SMEPs possess excellent mechanical properties, good chemical resistance, and high thermal stability. [15][16][17][18] Their tensile strength, storage modulus and thermal transition temperature, etc.…”

Section: Introductionmentioning

confidence: 99%

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High Performance Shape Memory Epoxy Syntactic Foam Composites as Lost Circulation Material in Deep Drilling

Ma,

Ren,

Wang

et al. 2023

Macro Materials & Eng

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Lost circulation is a critical issue in drilling. This work reports the investigations on shape memory epoxy polymers (SMEPs) with high switching temperatures, and good thermal, mechanical and shape memory properties for plugging in deep drilling. The SMEPs are produced by curing diglycidyl ether of bisphenol A (DGEBA) and castor oil glycidyl ether (COGE) with a flexible poly(oxypropylene) diamine (D230) and a rigid 4, 4′ ‐diaminodiphenyl methane (DDM). Increasing D230 contents or using COGE, glass transition temperature (Tg, 93–163 °C, DMA analyses) and crosslink density of SMEPs are reduced, shape recovery rate is increased, while tensile strength, elongation at break and impact strength are improved. Further, shape memory epoxy syntactic foams (SMEFs) with high‐temperature adhesion are developed by introducing polymer microspheres into SMEPs. The SMEFs have compression ratio of 52–58%, and expansion ratio of 100% by adding 2% wt. microspheres. They retain the Tg and thermal stability of SMEPs, and show a delayed, slower recovery than SMEPs. Long fracture plugging experiments exhibit that a pressure‐bearing capability of 8.99–9.81 MPa is achieved with SMEFs in sealing fracture slots at a high temperature.

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Section: High-temperature Adhesive Propertymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

High Performance Shape Memory Epoxy Syntactic Foam Composites as Lost Circulation Material in Deep Drilling

Ma,

Ren,

Wang

et al. 2023

Macro Materials & Eng

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“…They can also be used for floatable structures like bridges. − SMP foams are also considerably more compressible, which is advantageous for their handling and storage. A compressible SMP can be beneficial for applications that require expanding an orifice like a well − or dilating a blood vessel . Open-cell SMP foams can also be used as tissue scaffolds for biomedical applications, , including embolic vascular devices, scaffolds for filling bone defects, hemostatic sponges, soft tissue scaffolds, drug delivery platforms, and treatment of intracranial aneurysms .…”

Section: Introductionmentioning

confidence: 99%

A Hybrid Syntactic Foam-Based Open-Cell Foam with Reversible Actuation

Sarrafan

2022

ACS Appl. Mater. Interfaces

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Herein, we report the first hybrid open-cell foam with revisable actuation. Open-cell foams with revisable actuation are favoable for many applications. However, it is challenging to fabricate such open-cell foams with very low density. This study presents a novel concept of creating hybrid two-way (2W) shape memory open-cell foams using two-way shape-memory-polymer-based syntactic foams as the matrix. Previously, a syntactic foam prepared by incorporating hollow glass microbubbles in the cross-linked semicrystalline cis-poly(1,4-butadiene) (cPBD) was proved to have enhanced strength and specific energy output compared to the neat cPBD. Here, the same syntactic foam was used as the matrix, and the open-cell structure was produced by the salt-leaching method. The hybrid foam exhibits very attractive properties, including reversible actuation strain up to 50%, density as low as 0.07 g/cm3, energy output up to 0.23 J/g, tensile strength up to 0.84 MPa, elongation at break as high as 339%, high thermal stability with peak decomposition temperature at 450 °C, and Joule heating and strain sensing capabilities. The tensile strength and stiffness are shown to follow the well-known Gibson–Ashby model for porous materials. Combining the open-cell structure with the reversible actuation and other functionalities enables numerous potential applications for the prepared hybrid foam, including adjustable filters, insulators, sealers, and smart scaffolds.

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