... of the art drilling bits with novel PDC cutters design, premium casing connection, liner and wellbore isolation technology. Special mention is made to Inwell.AI, the in-house developed, Repsol proprietary artificial intelligence tool that allowed the drilling team to reach rates of penetration never reached...

... with a nitrogen kick-off technique to perforate on balance or slightly under-balance. This technique enables perforating long intervals with deep penetrating charges at high shot density, and with very low risk of gun jumping. This technique also promotes natural well flow after perforating, without the extra...

... Then came the age of drilling with motors and Measuring While Drilling (MWD) tools, with slide/rotate profiles often with a low rate of penetration (ROP) due to poor transfer of force to the bit during the slide sections ( Baker, 2001 ). Due to the limitations in downhole and surface...

... for the proper performance of conventional liquid based chemical stimulation systems. Main limitations are normally related to high interfacial tensions preventing optimal well's clean up and cost-effective achievable penetrations. This work presents a new well stimulation concept in which the carrying system...

... considerable activity with polymer flooding examining deeper penetration within the reservoir ( Demin et al. 2003 ). The mechanisms of how polymers act vary. Polymers can alter the water mobility in the reservoir predominantly by changing the aqueous viscosity. Some polymers actually adsorb to the rock pore...

... are present, such as high bottom hole temperatures (over 280 F), in some cases very tight reservoirs which complicates a matrix penetration of any gel treatment without overcoming the fracture gradient, in other cases naturally fractured wells which complicates the effectively fillout of all fracture nets...

... of this technology are given. Upstream Oil & Gas wavelength Wave Equation geometry Fluid Dynamics Wave phenomenon Venkitaraman interference pattern Reservoir Characterization frequency stimulation interphase ultrasound van der ba penetration placement flow in porous media attenuation...

... flow rate fracture propagation producer penetration Introduction Petroleum companies have been manipulating increasing volumes of produced and injected water in offshore fields in the last few years. In Brazil, Petrobras manipulates over 3 million barrels of water per day, including...

... in wellbore caving and seepage losses of mud under static conditions. Our data set includes every well drilled in the field to date. In order to determine whether problems are wholly formation related or are in part caused by drilling parameters, the following were analysed: Rate of penetration per day...

... of Mexico, Brazil, and West Africa, the top 10 concerns are (1) sub-salt rubble zones, (2) locating loss zones, (3) seepage losses, (4) drilling, running casing and cementing with synthetic-based drilling fluid, (5) drilling practices, excessive rate of penetration and hole conditions, (6) wellbore...

... have been used to dissolve fines and increase permeability in sandstones. However, it has been noted in considerable prior literature 11 – 21 that these treatments can result in relatively shallow penetration due to the rapid spending of HF. Frequently the treatment is limited to a few inches...

...-cracking with subsequent fluid penetration, and the use of a truly non-invasive fluid to avoid the instability. Field cases are reported, demonstrating the effectiveness of using such approach. The paper also presents the problems ofcurrent rig site monitoring tests that can induce wrong interpretation...

... of approximately 15000 feet, is in its mature stages due to implementation of high-pressure gas injection. PDVSA has consistently followed a forward planning approach related to reservoir management. Using high angle deviation drilling techniques allows development wells to be strategically located by penetrating...

... The solids content of a mud is inversely proportional to the rate of penetration 1 , 2 , . As hematite has a higher specific gravity than barite, it takes less hematite than barite to achieve a certain mud weight. This means that a mud containing hematite has a lower solids content than a mud...

... engineer lateral riser corrosion fluid loss control materials and corrosion pipeline corrosion successful short radius re-entry drillstring design flowline corrosion displacement penetration efficiency log analysis drilling fluid chemistry society The Problem: An Overlying shale Bed...

... temperature retrievable production packer packer mandrel internal slip operator hpht packer mandrel penetration completion equipment tooth penetration application high pressure high temperature test fixture retrievable production packer petroleum engineer society spe 36128 production packer...

... in this study are capable of accurately simulating the drilling of a well and reproducing realistic Rates of Penetration (ROPs). strength roller cone bit drilling operation gdl hareland drilling cost wob simulation drilling model unconfined rock strength drilling data drilling optimization...

... of bit parameters and support of a total drilling system for penetration rate, solids control and hydraulics optimization. In addition, use of the model is simple and straight forward, data requirements are standard and readily available. Lithology coefficients can be obtained from lab data or one set...

... the radial penetration of the acid fluid, at the same time prevents the formation of insoluble compounds and water blockage and in general facilitates the recovery of spent fluid. This combined method has been successfully used in producing wells located in Northeastern Brazilian oil fields, where...