Thermo-sensitive polymer nanospheres as a smart plugging agent for shale gas drilling operations

Wang, Weiji; Qiu, Zhengsong; Zhong, Hanyi; Huang, Weian; Dai, Wenhao

doi:10.1007/s12182-016-0140-3

Cited by 30 publications

(14 citation statements)

References 27 publications

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“…Due to high surface to volume ratio of nanosized particles, they can change chemical and physical properties of drilling fluids with low concentration. Several studied have proven superiority of NBFs to conventional drilling fluids (GarciaOchoa et al 2000;Li et al 2015a;Pérez et al 2004;Singh et al 2010;Tabzar et al 2015;Yu 2015;Wang et al 2016). Wang et al (2011b) investigated the effect of cross-linked polystyrene microsphere as a density-reducing agent on drilling fluid.…”

Section: Introductionmentioning

confidence: 99%

Improvement in filtration properties of water-based drilling fluid by nanocarboxymethyl cellulose/polystyrene core–shell nanocomposite

Saboori

Sabbaghi

Kalantariasl

et al. 2018

J Petrol Explor Prod Technol

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Since almost all drilling problems directly or indirectly relate to drilling fluid, improvement in drilling fluid significantly enhances drilling operations. Drilling fluid contains base fluid, suspended solid particles and chemicals. Recently, nanoparticles have been widely recommended for improvement in drilling fluid properties. The main purpose of this study was to improve the rheological and filtration properties of water-based drilling fluid through adding new additive carboxyl methyl cellulose (CMC)/polystyrene core-shell nanocomposite. It compares filtration and rheological behavior of CMC, nanoCMC and core-shell nanocomposite. The core-shell nanocomposite was synthesized by miniemulsion polymerization method, and nanoCMC and core-shell nanocomposite were characterized by scanning electron microscope, transmission electron microscopy, particle size analyzer and thermogravimetric analysis. Fluid loss, mud cake thickness, viscosity, weight and pH of drilling fluid with core-shell nanocomposite additive were compared with conventional CMC (bulk CMC) and nanoCMC particles. Results showed a significant decrease in mud cake thickness and fluid loss when the core-shell nanocomposite was used, as compared with conventional CMC and nanoCMC. Viscosity of three additives has same trend with insignificant change while less yield point is obtained for drilling fluid containing core-shell nanocomposites. Mud weight and pH were almost the same for all three additives. Thus, the core-shell nanocomposite can be an alternative additive to control mud cake thickness and fluid loss while maintaining other main properties in an acceptable range.

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Section: Introductionmentioning

confidence: 99%

Improvement in filtration properties of water-based drilling fluid by nanocarboxymethyl cellulose/polystyrene core–shell nanocomposite

Saboori

Sabbaghi

Kalantariasl

et al. 2018

J Petrol Explor Prod Technol

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“…Accompanied with the variation, the phase separation will happen, and polymer will cement out or dissolve in the solvent. Because of this special property, the application thermo‐sensitive copolymers have been studied extensively . Recently, researchers have developed their study to design and copolymerize thermo‐sensitive with other functional monomers to prepare a special material for special use.…”

Section: Introductionmentioning

confidence: 99%

“…Because of this special property, the application thermo-sensitive copolymers have been studied extensively. [28][29][30] Recently, researchers have developed their study to design and copolymerize thermo-sensitive with other functional monomers to prepare a special material for special use. The study about copolymerization could be separated to random copolymerization, 31,32 graft copolymerization, 33,34 block copolymerization, 35,36 and their combinations.…”

mentioning

confidence: 99%

Design and synthesis study of the thermo‐sensitive copolymer carrier of penicillin G acylase

Chen

Liu

et al. 2018

Polymers for Advanced Techs

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Reversible‐addition‐fragmentation chain transfer polymerization method was adopted here in this study to prepare a series of thermo‐sensitive tri‐block copolymer carrier, poly(N,N‐diethylacrylamide‐b‐β‐hydroxyethyl methacrylate‐b‐glycidyl methacrylate), PDEA‐b‐PHEMA‐b‐PGMA (named as DHG). Their structures and temperature sensitivity performances were further characterized by the nuclear magnetic resonance, the gel permeation chromatography, and the fluorescence spectroscopy, respectively. It has been identified that the synthesis reaction of tri‐block copolymer was living polymerization. The thermo‐sensitivity study suggested that 2 monomers, β‐hydroxyethyl methacrylate and glycidyl methacrylate, played key roles on the lower critical solution temperature performance. Finally, above block copolymer was conscripted to immobilize penicillin G acylase; relationships among the number‐average molar weight ()trueM¯n of the 2 monomer, β‐hydroxyethyl methacrylate and glycidyl methacrylate, loading (L), and activity recover rate (Ar) of immobilized PGA were investigated. And the results showed that L and Ar arrived at 19 502 U and 92%, respectively.

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“…Wang et al prepared a series of thermosensitive polymer nanospheres with different low critical solubility temperatures (LCST), named SD-SEAL ( Figure 1 J) [ 36 ]. The experimental results show that the synthesized nanoparticles are temperature sensitive and have a significant LCST value that increases with increasing hydrophilic monomer AA.…”

Section: Intelligent Polymer Shape-memory Polymermentioning

confidence: 99%

Research Progress of Intelligent Polymer Plugging Materials

et al. 2023

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Intelligent polymers have become the focus of attention worldwide. Intelligent polymer materials through organic synthesis methods are used to make inanimate organic materials become “feeling” and “sentient”. Intelligent polymer materials have been applied in actual engineering production, and they are becoming a new research topic for scientists in various fields and countries, especially in the areas of drilling and plugging. The development of intelligent polymer materials can provide new solutions and technical means for drilling and plugging. Unlike traditional plugging materials, intelligent polymer plugging materials can cope with environmental changes. They have the characteristics of a strong target, good plugging effect, and no damage to the reservoir. However, there are currently no reviews on intelligent polymer plugging materials in the drilling field, so this paper fills that gap by reviewing the research progress of intelligent polymer plugging materials. In addition, this paper describes the mechanism and application status of intelligent polymer shape-memory polymers, intelligent polymer gels, intelligent polymer membranes, and intelligent polymer bionic materials in drilling and plugging. It is also pointed out that some intelligent polymer plugging materials still have problems, such as insufficient toughness and a poor resistance to salt and high temperature. At the same time, some suggestions for future research directions are also presented for reference.

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Thermo-sensitive polymer nanospheres as a smart plugging agent for shale gas drilling operations

Cited by 30 publications

References 27 publications

Improvement in filtration properties of water-based drilling fluid by nanocarboxymethyl cellulose/polystyrene core–shell nanocomposite

Improvement in filtration properties of water-based drilling fluid by nanocarboxymethyl cellulose/polystyrene core–shell nanocomposite

Design and synthesis study of the thermo‐sensitive copolymer carrier of penicillin G acylase

Research Progress of Intelligent Polymer Plugging Materials

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