Improving the performance of a polyamine shale inhibitor by introducing a hydrophobic group in oil and gas development

Huang, Xianbin; Dai, Zhiwen; Zhang, Chao; Lv, Kaihe; Meng, Xu; Ren, Wei; Lalji, Shaine Mohammadali; Khan, Muhammad Arqam

doi:10.1016/j.fuel.2023.129435

Cited by 10 publications

(8 citation statements)

References 19 publications

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“…The thicker the diffuse double layer, the higher the zeta potential, and the greater the spacing between clay particles. When adding cations, the higher the cation concentration, the more the diffuse layer is compressed, which results in lower zeta potential, and thus the clay particles will aggregate to form large particles. ,, The effects of different inhibitors on the zeta potential value of BT suspension were measured, and the findings are presented in Figure d. BT is negatively charged, with a zeta potential value of −36.6 mV.…”

Section: Resultsmentioning

confidence: 99%

“…Water-soluble polymers adsorb onto rock surfaces, forming a protective film that affects water adsorption. 7 With the superior The formation of water-impermeable film can vary the wettability of rock, leading to a change in the water contact angle (WCA). Therefore, the WCA of shale core slices before and after treatment with 2.0 wt % T-ChNFs and DT-ChNFs was measured, and the results are shown in Figure 5b,c.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…The main causes of clay swelling include osmotic swelling and surface hydration. Therefore, the inhibition of shale swelling should be approached from the perspectives of osmotic and surface inhibition mechanisms. ,, In WDFs, shale inhibitor stands out as one of the most important additives to ensure safe and efficient drilling. They can effectively inhibit clay swelling and dispersion, significantly reducing the risks of wellbore instability.…”

Section: Introductionmentioning

confidence: 99%

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Shrimp Shell-Derived Chitin Nanofibers as Shale Inhibitors in Water-Based Drilling Fluids

Liu,

Li,

et al. 2024

ACS Sustainable Chem. Eng.

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To address shale wellbore instability and promote sustainable development in the oil and gas drilling industry, chitin nanofibers (ChNFs) were extracted from shrimp shells and employed as environmentally friendly shale inhibitors for the first time. Two types of ChNFs, namely, 2,2,6,6tetramethylpiperidinooxy (TEMPO)-mediated oxidized ChNFs (T-ChNFs) and deacetylated T-ChNFs (DT-ChNFs), were prepared through TEMPO-mediated oxidation of shrimp shell-derived chitin and partial deacetylation of obtained T-ChNFs, respectively. Due to the abundance of hydroxyl, carboxyl, and amide groups, both T-ChNFs and DT-ChNFs formed hydrogen bonds with clay particles, adsorbed on the shale surface, and thereby demonstrated superior shale inhibition capacity than the conventional shale inhibitor potassium chloride (KCl). Moreover, T-ChNFs and DT-ChNFs were capable of replacing interlayer water through intercalation, effectively inhibiting water invasion into the interlayer. DT-ChNFs with positive charges on the surface exhibited enhanced shale inhibition properties due to more effective adsorption on the shale surface through electrostatic interactions. Additionally, T-ChNFs and DT-ChNFs showed favorable compatibility with bentonite water-based drilling fluids (BT-WDFs). The addition of ChNFs significantly improved the rheological properties of the BT-WDFs without compromising their filtration properties. In contrast, the inclusion of KCl in BT-WDFs resulted in a substantial decline in filtration performance.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Shrimp Shell-Derived Chitin Nanofibers as Shale Inhibitors in Water-Based Drilling Fluids

Liu,

Li,

et al. 2024

ACS Sustainable Chem. Eng.

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“…Shale formations contain abundant clay minerals, making them highly sensitive to water and prone to hydration [6,7]. The hydration process often leads to shale expansion and dispersion, resulting in issues such as wellbore instability, stuck pipe, bit balling, and mud losses [8][9][10]. Addressing these challenges often requires more time and financial resources for maintenance.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Aminated Nano-Silica as a Novel Shale Stabilizer to Improve Wellbore Stability

Li,

Xu,

Pei

et al. 2024

Materials

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The issue of wellbore instability poses a significant challenge in the current exploration of shale gas reservoirs. Exploring more efficient shale stabilizers has always been a common goal pursued by researchers. In this paper, a novel shale stabilizer, denoted as ANS, was prepared by employing a silane-coupling modification method to graft (3-Aminopropyl) triethoxysilane (APTES) onto the surface of nano-silica. The structure of ANS was characterized through Fourier transforms infrared spectroscopy (FT-IR), thermo-gravimetric analysis (TGA), and particle size tests (PST). The shale stabilizing properties of ANS were evaluated through tests such as pressure penetration, BET analysis, hydration expansion and dispersion. Furthermore, the interaction between ANS as a shale stabilizer and clay was explored through clay zeta potential and particle size analysis. The results indicated that ANS exhibited a stronger plugging capability compared to nano-silica, as evidenced by its ability to increase the shale pressure penetration time from 19 to 131 min. Moreover, ANS demonstrated superior hydration inhibition compared to commonly used KCl. Specifically, it reduced the expansion height of bentonite from 8.04 to 3.13 mm and increased the shale recovery rate from 32.84% to 87.22%. Consequently, ANS played a dual role in providing dense plugging and effective hydration inhibition, contributing significantly to the enhancement of wellbore stability in drilling operations. Overall, ANS proved to be a promising shale stabilizer and could be effective for drilling troublesome shales.

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“…The most common SHIs are classified into three main types: potassium salts [15,16], ionic liquids [17,18], and amine polymers [19][20][21][22]. Huang et al [23] prepared a hydrophobic cationic polyamine shale inhibitor (HCPA) by introducing hydrophobic groups into the molecular structure of amine shale inhibitors with branched chains. The results indicate that HCPA can significantly increase the water contact angle between rocks and mud cakes and reduce the water absorption capacity of clay and shale.…”

Section: Introductionmentioning

confidence: 99%

Acylated Inulin as a Potential Shale Hydration Inhibitor in Water Based Drilling Fluids for Wellbore Stabilization

Lv,

Shen,

Sun

et al. 2024

Molecules

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Shale hydration dispersion and swelling are primary causes of wellbore instability in oil and gas reservoir exploration. In this study, inulin, a fructo-oligosaccharide extracted from Jerusalem artichoke roots, was modified by acylation with three acyl chlorides, and the products (C10-, C12-, and C14-inulin) were investigated for their use as novel shale hydration inhibitors. The inhibition properties were evaluated through the shale cuttings hot-rolling dispersion test, the sodium-based bentonite hydration test, and capillary suction. The three acylated inulins exhibited superb hydration-inhibiting performance at low concentrations, compared to the commonly used inhibitors of KCl and poly (ester amine). An inhibition mechanism was proposed based on surface tension measurements, contact angle measurements, Fourier-transform infrared analysis, and scanning electron microscopy. The acylated inulin reduced the water surface tension significantly, thus, retarding the invasion of water into the shale formation. Then, the acylated inulin was adsorbed onto the shale surface by hydrogen bonding to form a compact, sealed, hydrophobic membrane. Furthermore, the acylated inulins are non-toxic and biodegradable, which meet the increasingly stringent environmental regulations in this field. This method might provide a new avenue for developing high-performance and ecofriendly shale hydration inhibitors.

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Improving the performance of a polyamine shale inhibitor by introducing a hydrophobic group in oil and gas development

Cited by 10 publications

References 19 publications

Shrimp Shell-Derived Chitin Nanofibers as Shale Inhibitors in Water-Based Drilling Fluids

Shrimp Shell-Derived Chitin Nanofibers as Shale Inhibitors in Water-Based Drilling Fluids

Evaluation of Aminated Nano-Silica as a Novel Shale Stabilizer to Improve Wellbore Stability

Acylated Inulin as a Potential Shale Hydration Inhibitor in Water Based Drilling Fluids for Wellbore Stabilization

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