High-Performance Fresh Water Drilling Fluid Solution Helps to Drill Over 600 Wells in Salym Oilfield

2012 ◽  
Author(s):  
MIkhail Vasiliev ◽  
Oleg Afanasiev ◽  
Rustam Mekhdihanov ◽  
Andrey Rusanov ◽  
Andrey Kharitonov ◽  
...  
Keyword(s):  
Fresh Water ◽  
High Performance ◽  
Drilling Fluid ◽  
Fluid Solution

High Performance Fresh Water Flocculating Drilling Fluid helps to increase drilling performance and reduce costs on Uvat oilfield

2008 ◽  
Author(s):  
Alexey Samarskiy ◽  
Robert Munger ◽  
Alexander Gennadievich Terentiev ◽  
Sergey Albertovich Gasparov ◽  
Boris Pavlovich Zalogin ◽  
...  
Keyword(s):  
Fresh Water ◽  
High Performance ◽  
Drilling Fluid ◽  
Drilling Performance

scholarly journals Certain Assessment of Using MWCNT Nps in Drilling Fluid to Mitigate Stick-Slip Problem during Drilling Operation System

2019 ◽  
Vol 20 (3) ◽  
pp. 39-47
Author(s):  
Saifalden Y. Alssafar ◽  
Faleh H. M. Al-Mahdawi
Keyword(s):  
Fresh Water ◽  
High Performance ◽  
Drilling Fluid ◽  
New Technology ◽  
Friction Torque ◽  
Drilling Mud ◽  
Stick Slip ◽  
Nano Fluid ◽  
The Coefficient Of Friction ◽  
Carbon Nano Tube

   Stick- slip is the continuous stopping& release of the Bit/BHA due to the irregular down-hole rotation prompted by the existing relationship between the friction torque and the torque applied from the surface to free the bit.    Friction coefficient between BHA and wellbore is the main player of stick slip amount, which can be mitigated by support a good lubricators as additives in drilling mud.    Mathematical (or empirical) solves should be done through adjusting all parameters which supposed to reduce stick- slip as low as possible using different models, one of the main parameters is drilling mud. As per Nanoparticles drilling fluid is a new technology that offers high performance it’s necessary to find out the relationship between the use of Nano fluid and the minimum stick- slip vibration. In this study (multiwall carbon Nano tube) will be used as a Nanoparticles in Fresh water bentonite mud and polymer mud by five tests per each one to find out the coefficient of friction and used it in a special torque and drag software as a part of drilling vertical well simulation to calculate expected bottom hole torque within five different Nano concentration per each mud type. In fresh water bentonite mud torque reduction was from 4000 ft-lb to 3500 ft-lb, while in polymer mud torque failed and didn’t reduce, so it raised from 2050.88 ft-lb to be around 2200 ft-lb.

Low ECD High Performance Invert Emulsion Drilling Fluids: Lab Development and Field Deployment

2021 ◽  
Author(s):  
Vikrant Wagle ◽  
Abdullah Yami ◽  
Michael Onoriode ◽  
Jacques Butcher ◽  
Nivika Gupta
Keyword(s):  
High Performance ◽  
Filter Cake ◽  
Drilling Fluid ◽  
Field Performance ◽  
Superior Performance ◽  
Core Material ◽  
Drilling Fluids ◽  
Invert Emulsion ◽  
Field Deployment ◽  
Permeability Studies

Abstract The present paper describes the results of the formulation of an acid-soluble low ECD organoclay-free invert emulsion drilling fluid formulated with acid soluble manganese tetroxide and a specially designed bridging package. The paper also presents a short summary of field applications to date. The novel, non-damaging fluid has superior rheology resulting in lower ECD, excellent suspension properties for effective hole cleaning and barite-sag resistance while also reducing the risk of stuck pipe in high over balance applications. 95pcf high performance invert emulsion fluid (HPIEF) was formulated using an engineered bridging package comprising of acid-soluble bridging agents and an acid-soluble weighting agent viz. manganese tetroxide. The paper describes the filtration and rheological properties of the HPIEF after hot rolling at 300oF. Different tests such as contamination testing, sag-factor analysis, high temperature-high pressure rheology measurements and filter-cake breaking studies at 300oF were performed on the HPIEF. The 95pcf fluid was also subjected to particle plugging experiments to determine the invasion characteristics and the non-damaging nature of the fluids. The 95pcf HPIEF exhibited optimal filtration properties at high overbalance conditions. The low PV values and rheological profile support low ECDs while drilling. The static aging tests performed on the 95pcf HPIEF resulted in a sag factor of less than 0.53, qualifying the inherent stability for expected downhole conditions. The HPIEF demonstrated resilience to contamination testing with negligible change in properties. Filter-cake breaking experiments performed using a specially designed breaker fluid system gave high filter-cake breaking efficiency. Return permeability studies were performed with the HPIEF against synthetic core material, results of which confirmed the non-damaging design of the fluid. The paper thus demonstrates the superior performance of the HPIEF in achieving the desired lab and field performance.

Development of New Models to Determine the Rheological Parameters of Water-based Drilling Fluid Using Artificial Intelligence

2021 ◽  
Author(s):  
Farqad Hadi ◽  
Ali Noori ◽  
Hussein Hussein ◽  
Ameer Khudhair
Keyword(s):  
Rheological Properties ◽  
High Performance ◽  
Drilling Fluid ◽  
Gel Strength ◽  
Solid Content ◽  
Rheological Parameters ◽  
Water Based ◽  
Fluid Properties ◽  
Drilling Operations ◽  
Marsh Funnel

Abstract It is well known that drilling fluid is a key parameter for optimizing drilling operations, cleaning the hole, and managing the rig hydraulics and margins of surge and swab pressures. Although the experimental works present valid and reliable results, they are expensive and time consuming. On the other hand, continuous and regular determination of the rheological mud properties can perform its essential functions during well construction. More uncertainties in planning the drilling fluid properties meant that more challenges may be exposed during drilling operations. This study presents two predictive techniques, multiple regression analysis (MRA) and artificial neural networks (ANNs), to determine the rheological properties of water-based drilling fluid based on other simple measurable properties. While mud density (MW), marsh funnel (MF), and solid% are key input parameters in this study, the output functions or models are plastic viscosity (PV), yield point (YP), apparent viscosity (AV), and gel strength. The prediction methods were demonstrated by means of a field case in eastern Iraq, using datasets from daily drilling reports of two wells in addition to the laboratory measurements. To test the performance ability of the developed models, two error-based metrics (determination coefficient R2 and root mean square error RMSE) have been used in this study. The current results of this study support the evidence that MW, MF, and solid% are consistent indexes for the prediction of rheological properties. Both mud density and solid content have a relative-significant effect on increasing PV, YP, AV, and gel strength. However, a scattering around each fit curve is observed which proved that one rheological property alone is not sufficient to estimate other properties. The results also reveal that both MRA and ANN are conservative in estimating the fluid rheological properties, but ANN is more precise than MRA. Eight empirical mathematical models with high performance capacity have been developed in this study to determine the rheological fluid properties based on simple and quick equipment as mud balance and marsh funnel. This study presents cost-effective models to determine the rheological fluid properties for future well planning in Iraqi oil fields.

Pervaporative desalination of seawater using a polyvinylidene fluoride based membrane

2017 ◽  
Vol 18 (5) ◽  
pp. 1674-1681 ◽  
Author(s):  
F. U. Nigiz ◽  
N. D. Hilmioglu
Keyword(s):  
Fresh Water ◽  
Polyvinylidene Fluoride ◽  
High Performance ◽  
Potable Water ◽  
Effective Properties ◽  
Cost Effective ◽  
Porous Membranes ◽  
Scientific Investigations ◽  
Different Temperatures ◽  
Energy Strategies

Abstract Producing a fresh water supply by converting non-potable water is an attractive solution when water is scarce. According to the energy strategies of different countries, various seawater purification techniques such as distillation and reverse osmosis (RO) are used to produce fresh water. Due to the selective separation capability and cost-effective properties, membrane based methods such as RO, electrodialysis, and ultra/micro/nano/filtration are prevalent, especially in Europe. Recently, innovative desalination technologies have been investigated by researchers. Among them, pervaporative separation, in which non-porous membranes are used, appears to be an emerging and promising method. The key part of the system is the membrane. Hence, scientific investigations are focused on the production of high-performance membranes. In this study, non-porous polyvinylidene fluoride (PVDF) and polyvinyl pyrrolidone (PVP) blend membranes were prepared in different PVDF/PVP ratios and Marmara seawater was desalinated using the pervaporation method at different temperatures. Desalination performance was evaluated as a function of flux and salt retention. The highest salt retention of 99.90% and flux of 1.60 kg/m2.h were obtained at 60 °C when the PVDF/PVP ratio was 1.5.

Psyllium husk performance in drilling fluid at elevated temperature and pressure conditions

2018 ◽  
Vol 58 (1) ◽  
pp. 112
Author(s):  
Son Ly ◽  
Xiao Yu ◽  
Xinsong Zhang ◽  
Alireza Salmachi
Keyword(s):  
High Performance ◽  
Elevated Temperatures ◽  
Performance Enhancement ◽  
Drilling Fluid ◽  
Filter Press ◽  
Water Soluble ◽  
Natural Polymers ◽  
Psyllium Husk ◽  
Water Based ◽  
Temperature And Pressure

High performance water-based drilling fluid alternatives that meet performance objectives with minimal environmental impact must continually be developed. Drilling fluid performance is dependent on fluid characteristics, and among those most critical are viscosity and filtration. One avenue to improve drilling fluid performance is through enhancement by use of potent, water-soluble natural polymers. Psyllium husk powder is an environmentally friendly natural polymer derived from ground-up surfaces of psyllium seeds (Plantago ovata). When in contact with water, psyllium husk powder forms a gel-like, extraordinarily viscous substance at very low concentrations. It was previously shown that pure psyllium husk is an excellent viscosity and filtration agent for water-based drilling fluid under standard conditions. Psyllium husk can also be used as a clay-extender to enhance viscosity and filtration performance of bentonite mud; however, further laboratory testing of this performance enhancement under elevated temperatures and pressures is required. Extensive laboratory experiments were therefore conducted to test husk performance in bentonite mud under such conditions. An electronic rheometer and a temperature and pressure adjustable API filter press were used to evaluate viscoelastic and filtration mud characteristics respectively. Concentrations of 0.05–0.4% husk with 5% bentonite were tested at 25−120°C under 1500 psi. An optimal husk concentration of 0.1% was determined, increasing bentonite viscosity and yield point by up to 46.9% and 68.1% respectively. Filtrate loss rate and filtration cake thickness were reduced by up to 25.8% and 35.3% respectively. The optimal concentration was useable up to 70°C (~2800 m) before deflocculating was required.

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

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.

Salt-Responsive AM/AMPS/ATC Terpolymers as Modifiers for Rheology and Fluid Loss in Water-Based Drilling Fluid

2018 ◽  
Vol 765 ◽  
pp. 106-112
Author(s):  
Yin Bo He ◽  
Guan Cheng Jiang ◽  
Wu Ge Cui
Keyword(s):  
High Performance ◽  
Drilling Fluid ◽  
Fluid Loss ◽  
Trimethylammonium Chloride ◽  
Polymer Conformation ◽  
Nacl Concentration ◽  
Water Based ◽  
Lower Fluid ◽  
Performance Additives ◽  
Potential Use

In this study, we report salt-responsive amphoteric terpolymers prepared by copolymerization of acrylamide (AM), 2-acrylamido-2-methylpropanesulfonate (AMPS) and 3-acrylamidopropyl trimethylammonium chloride (ATC), and their use as rheology and fluid loss modifiers in water-based drilling fluid (WDF). The dependence of viscosity and turbidity on NaCl concentration indicates the salt-responsiveness of terpolymers, which results from salt-induced polymer conformation changes. In the presence of large quantities of NaCl, comparing with BT/polyanioins solution, bentonite (BT)/terpolymer solution has better shear thinning and thixotropic performance as well as lower fluid loss. Morphology shows that BT/terpolymer solution with NaCl creates high-quality filtrate cake which is compact and thin. A salt-resistant WDF prepared with terpolymers is evaluated and compared with polyanioinc WDF and polyanionic sulfonated WDF. The salt-resistant WDF possesses more favorable rheology, lower fluid loss and stronger tolerance for temperature, suggesting the potential use of AM/AMPS/ATC terpolymers as high-performance additives for salt-resistant WDFs.

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