Polyanionic cellulose/hydrophilic monomer copolymer grafted silica nanocomposites as HTHP drilling fluid-loss control agent for water-based drilling fluids

AbstractThis work investigates the efficacy of a biodegradable natural product, litchi leaves powder (LLP) as a filtration loss control agent in the water-based drilling fluid formulations. In order to evaluate the potential of litchi leaves powder (LLP), a strict protocol of experimentations according to API (American Petroleum Institute) standard has been followed. The experimental outcome showed that before hot rolling and after hot rolling of mud samples at 100 °C it was observed that 3–5% Concentration of LLP significantly increased the rheological parameters such as PV, YP and gelation of drilling fluid as compared to reference mud. Also, LLP reformed the filtration loss control characterization, suggesting a better biodegradable fluid loss reducing agent. After hot rolling at 100 °C for 18 h, the water-based drilling fluid with LLP as an additive showed a marked reduction in filtration control property as compared to reference Mud (RM). Experimental results concluded that 5% concentration of LLP significantly reduced the filtration loss of drilling fluid by 70.6% as compared to reference mud under the influence of 100 psi pressure. However, the conventional fluid loss additive CMC (LVG) reduced the filtration loss by maximum 67.5% as compared to reference mud. Therefore, LLP can be used as an alternative to CMC (LVG) in water-based drilling fluid with a maximum subsurface temperature of 100 °C.

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A Study on the Effects of Date Pit-Based Additive on the Performance of Water-Based Drilling Fluid

Journal of Energy Resources Technology ◽

10.1115/1.4038382 ◽

2017 ◽

Vol 140 (5) ◽

Cited By ~ 14

Author(s):

Jimoh K. Adewole ◽

Musa O. Najimu

Keyword(s):

Thermal Stability ◽

Particle Size ◽

Filter Cake ◽

Drilling Fluid ◽

Fluid Loss ◽

Drilling Fluids ◽

Date Seed ◽

Water Based ◽

Filtration Properties ◽

Loss Control

This study investigates the effect of using date seed-based additive on the performance of water-based drilling fluids (WBDFs). Specifically, the effects of date pit (DP) fat content, particle size, and DP loading on the drilling fluids density, rheological properties, filtration properties, and thermal stability were investigated. The results showed that dispersion of particles less than 75 μm DP into the WBDFs enhanced the rheological as well as fluid loss control properties. Optimum fluid loss and filter cake thickness can be achieved by addition of 15–20 wt % DP loading to drilling fluid formulation.

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Agarwood Waste as A New Fluid Loss Control Agent in Water-based Drilling Fluid

International Journal of Science and Engineering ◽

10.12777/ijse.5.2.101-105 ◽

2013 ◽

Vol 5 (2) ◽

Cited By ~ 4

Author(s):

Azlinda Azizi ◽

Mohd Shahrul Nizam Ibrahim ◽

Ku Halim Ku Hamid ◽

Arina Sauki ◽

Nurul Aimi Ghazali ◽

...

Keyword(s):

Drilling Fluid ◽

Control Agent ◽

Fluid Loss ◽

Water Based ◽

Loss Control

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Experimental study on thermal, rheological and filtration control characteristics of drilling fluids: effect of nanoadditives

Oil & Gas Science and Technology – Revue d’IFP Energies nouvelles ◽

10.2516/ogst/2020033 ◽

2020 ◽

Vol 75 ◽

pp. 36

Author(s):

Erfan Veisi ◽

Mastaneh Hajipour ◽

Ebrahim Biniaz Delijani

Keyword(s):

Thermal Conductivity ◽

Heat Capacity ◽

Drilling Fluid ◽

Formation Damage ◽

Fluid Loss ◽

Drilling Fluids ◽

Drill Bit ◽

Rheological Characteristics ◽

Cu Nanoparticles ◽

Water Based

Cooling the drill bit is one of the major functions of drilling fluids, especially in high temperature deep drilling operations. Designing stable drilling fluids with proper thermal properties is a great challenge. Identifying appropriate additives for the drilling fluid can mitigate drill-bit erosion or deformation caused by induced thermal stress. The unique advantages of nanoparticles may enhance thermal characteristics of drilling fluids. The impacts of nanoparticles on the specific heat capacity, thermal conductivity, rheological, and filtration control characteristics of water‐based drilling fluids were experimentally investigated and compared in this study. Al2O3, CuO, and Cu nanoparticles were used to prepare the water-based drilling nanofluid samples with various concentrations, using the two-step method. Transmission Electron Microscopy (TEM) and X-Ray Diffraction (XRD) were utilized to study the nanoparticle samples. The nanofluids stability and particle size distribution were, furthermore, examined using Dynamic Light Scattering (DLS). The experimental results indicated that thermal and rheological characteristics are enhanced in the presence of nanoparticles. The best enhancement in drilling fluid heat capacity and thermal conductivity was obtained as 15.6% and 12%, respectively by adding 0.9 wt% Cu nanoparticles. Furthermore, significant improvement was observed in the rheological characteristics such as the apparent and plastic viscosities, yield point, and gel strength of the drilling nanofluids compared to the base drilling fluid. Addition of nanoparticles resulted in reduced fluid loss and formation damage. The permeability of filter cakes decreased with increasing the nanoparticles concentration, but no significant effect in filter cake thickness was observed. The results reveal that the application of nanoparticles may reduce drill-bit replacement costs by improving the thermal and drilling fluid rheological characteristics and decrease the formation damage due to mud filtrate invasion.

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Laponite: a promising nanomaterial to formulate high-performance water-based drilling fluids

Petroleum Science ◽

10.1007/s12182-020-00516-z ◽

2020 ◽

Author(s):

Xian-Bin Huang ◽

Jin-Sheng Sun ◽

Yi Huang ◽

Bang-Chuan Yan ◽

Xiao-Dong Dong ◽

...

Keyword(s):

High Performance ◽

Drilling Fluid ◽

Nitrogen Adsorption ◽

Drill String ◽

Wellbore Stability ◽

Fluid Loss ◽

Drilling Fluids ◽

Mechanism Analysis ◽

Water Based ◽

Inhibition Performance

Abstract High-performance water-based drilling fluids (HPWBFs) are essential to wellbore stability in shale gas exploration and development. Laponite is a synthetic hectorite clay composed of disk-shaped nanoparticles. This paper analyzed the application potential of laponite in HPWBFs by evaluating its shale inhibition, plugging and lubrication performances. Shale inhibition performance was studied by linear swelling test and shale recovery test. Plugging performance was analyzed by nitrogen adsorption experiment and scanning electron microscope (SEM) observation. Extreme pressure lubricity test was used to evaluate the lubrication property. Experimental results show that laponite has good shale inhibition property, which is better than commonly used shale inhibitors, such as polyamine and KCl. Laponite can effectively plug shale pores. It considerably decreases the surface area and pore volume of shale, and SEM results show that it can reduce the porosity of shale and form a seamless nanofilm. Laponite is beneficial to increase lubricating property of drilling fluid by enhancing the drill pipes/wellbore interface smoothness and isolating the direct contact between wellbore and drill string. Besides, laponite can reduce the fluid loss volume. According to mechanism analysis, the good performance of laponite nanoparticles is mainly attributed to the disk-like nanostructure and the charged surfaces.

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