Hydrophobic associated polymer based silica nanoparticles composite with core–shell structure as a filtrate reducer for drilling fluid at utra-high temperature

Mao, Hui; Qiu, Zhengsong; Shen, Zhonghou; Huang, Weian

doi:10.1016/j.petrol.2015.03.003

Cited by 244 publications

(117 citation statements)

References 27 publications

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“…Temperatures chosen for aging were 38ºC which is believed to be subsurface temperature, 65ºC is the temperature between surface temperature and bottom hole temperature and 93ºC is the maximum permissible temperatures for water based mud to perform rheological test so as to avoid degradation of polymers [16,17]. Temperature of 49ºC was taken as standard temperature to measure rheological properties of the mud [18] after aging.…”

Section: Aging Processmentioning

confidence: 99%

Improving the Rheological Properties of Water Based Mud with Moringa oleifera Leaves

Biwott

Akaranta

Kiprop

et al. 2019

CSIJ

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This paper aimed at improving the water-based drilling mud using Moringa oleifera (M. Oleifera) plant leaves. The rheological properties (plastic viscosity (PV), yield point (YP), and gel strength) of the mud were measured using standard procedures. The mud weight was not affected by M. oleifera concentration (10.03-10.63 pounds per gallon (ppg)). pH of the formulated mud decreased by 28% with increasing concentration of the M. oleifera leaves. The highest PV (33cP) was recorded by mud with 1% M. oleifera leaves at 50ºC while the least value (22cP) was given by control mud at 70ºC temperature. Highest YP (57 1b/100ft 2 ) was recorded by mud sample with 4% concentration of M. oleifera leaves while 1% gave the lowest YP value of 91b/100ft2 at 30ºC and Original Research Article

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Section: Aging Processmentioning

confidence: 99%

Improving the Rheological Properties of Water Based Mud with Moringa oleifera Leaves

Biwott

Akaranta

Kiprop

et al. 2019

CSIJ

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“…The tests were conducted using a NP-2 swelling instrument (Haitongda, Qingdao, China) to measure the linear swelling rate of the core sample after immersed in pure water and drilling fluid [29,30]. Bentonite which was crushed and sifted through a 100-mesh screen, was used to prepare the core sample.…”

Section: Shale Inhibition Performancementioning

confidence: 99%

Zwitterionic Polymer P(AM-DMC-AMPS) as a Low-Molecular-Weight Encapsulator in Deepwater Drilling Fluid

et al. 2017

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Featured Application: This work aims to simultaneously realize good encapsulation performance and low-temperature rheological property for deepwater drilling fluid. It is expected to be used in deepwater oil and gas drilling operations. Abstract:In deepwater oil and gas drilling, the high-molecular-weight encapsulator aggravates the thickening of the drilling fluid at low temperatures. Therefore, it is hard to manage the downhole pressure, and drilling fluid loss occurs. In this paper, a zwitterionic polymer P(AM-DMC-AMPS) which was the terpolymer of acrylamide, methacrylatoethyl trimethyl ammonium chloride, and 2-acrylamido-2-methylpropane sulfonic acid, was developed as a low-molecular-weight encapsulator. It was characterized by Fourier transform infrared spectrum analysis, nuclear magnetic resonance, and gel permeation chromatography. Moreover, the low-temperature rheology, shale inhibition and filtration properties of water-based drilling fluids (WBDFs) containing different encapsulators were experimentally investigated and compared. The results showed that the molecular weight of P(AM-DMC-AMPS) was about 260,000, much lower than that of the conventional encapsulators. In the deepwater drilling temperature range 4-75 • C, WBDF containing P(AM-DMC-AMPS) had lower and more stable rheological property because of its short molecular chains. The high shale recovery rate and low swelling rate indicated its strong shale inhibition performance, owing to its adsorption on the clay surface and the wrapping effect through both hydrogen bonding and electrostatic interaction. It also improved the filtration property of WBDF, and was compatible with other WBDF components. This product is expected to simultaneously realize the good encapsulation performance and low-temperature rheological property for deepwater drilling fluid.

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“…Meanwhile, one part of the modified bentonite was immersed in deionized water for 24 h. After immersion, the bentonite was centrifuged, dried, and ground to fine powders for linear swelling test. The linear swelling test was designed to evaluate the amount of swelling that the shale undergoes after contacting with the testing fluid [14]. First, mass of 10 g Na-Bent was compressed under the pressure of 10 MPa for 5 min to form a pellet with the diameter of 25.4 mm.…”

Section: Linear Swelling Testmentioning

confidence: 99%

“…One of the challenges associated with drilling deep and ultra-deep wells is to maintain properties of drilling fluid desirable and stable under HPHT conditions [14]. However, most of the organic additives or conventional polymers were unstable at high temperatures, which caused deterioration of the properties of drilling fluids [15] and were not suitable for high-temperature application [16].…”

Section: Introductionmentioning

confidence: 99%

Study of 4, 4′-methylenebis-cyclohexanamine as a high temperature-resistant shale inhibitor

et al. 2016

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In order to develop high-performance water-based drilling fluid with the aim of meeting the increasing requirement of drilling industry, highly inhibitive and high-temperature-resistant shale inhibitors are essential. In this study, 4, 4 0 -methylenebis-cyclohexanamine was introduced as a potential shale inhibitor. The inhibitive properties of the amine compound in comparison with currently available polyether diamine inhibitor were evaluated using bentonite inhibition test, shale cuttings hot-rolling dispersion test, linear swelling test, and pressure transmission test. The inhibitive mechanism was investigated with zeta potential measurement, X-ray diffraction analysis, and contact angle measurement. The results indicated that 4, 4 0 -methylenebis-cyclohexanamine can inhibit shale hydration and dispersion effectively, and prevent pressure transmission to a certain extent, performing better than that of polyether diamine. Furthermore, the new diamine provides reliable thermal stability as high as 220°C, preserving the benefits of high-temperature wells application. This novel diamine inhibits shale hydration and dispersion with the combination of chemical inhibition and physical plugging. The intercalation into the interlayer of clay with monolayer collapses the hydrated clay structure and expels the water molecules. After adsorption, clay surface became more hydrophobic, which prevents the imbibition of water. The variation of solubility separates the compound from the solution, which can plug the micro-pores of shale and prevent fluid invasion.

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Hydrophobic associated polymer based silica nanoparticles composite with core–shell structure as a filtrate reducer for drilling fluid at utra-high temperature

Cited by 244 publications

References 27 publications

Improving the Rheological Properties of Water Based Mud with Moringa oleifera Leaves

Improving the Rheological Properties of Water Based Mud with Moringa oleifera Leaves

Zwitterionic Polymer P(AM-DMC-AMPS) as a Low-Molecular-Weight Encapsulator in Deepwater Drilling Fluid

Study of 4, 4′-methylenebis-cyclohexanamine as a high temperature-resistant shale inhibitor

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