... Abstract Rate of Penetration referrers to the speed of breaking the rock under the bit. It measures the speed or the progress of the bit when it drills the formation. It has been reported in the industry that high percentage of the well budget is spent on the drilling phase, thus many drilling...

...¼-in. curve section, and drilling through interbedded hard layers with severe downhole stick/slip and downhole vibrations. Historically, both motor and motorized rotary steerable system (MRSS) bottomhole assemblies (BHAs) were used to drill this section. However, the motor BHA's lower rate of penetration (ROP...

... Abstract The rate of penetration (ROP) plays a major role in drilling optimization, making it an important area of investigation. In this work, sensitivity and statistical analysis were carried out using data from over 100 wells in the Rumaila field, Iraq. The goal is to assess the effect...

... is drilled, actual formation tops are picked using various methods such as rate of penetration (ROP) charts, gamma ray (GR), formation cuttings and mud logging. These data are used in updating the geological model and in ensuring a proper zonal isolation in critical sections. Each of these methods has its...

... due to fully rotational bottomhole assembly. As shown in Fig. 1 , the rate of penetration (ROP) comparisons were made between the PDM and MRSS to verify the commercial viability of the proposed design. Well-A to Well-D were wells that was drilled with PDM and Well-E to Well-I were drilled with MRSS...

.... The rate of penetration is extremely related to hole cleaning. If optimum hole cleaning can be ensured, that will lead to a high rate of penetration. To ensure perfect hole cleaning, it must be engineered. There are several correlations, mothed, designs, models, tools, charts, fields results, experimental...

... Abstract Rate of penetration (ROP) is the main function that affects drilling operation economically and efficiently. Many theoretical models reported in the literature were produced to predict ROP based on different parameters. Most of these models used only drilling parameters to estimate ROP...

... torque (τ), rate of penetration (ROP), mud weight (MW) and formation pressure (P f ). More than 4700 real field data points are used to predict fracture pressure using Functional Networks (FN) which is a method of artificial intelligence (AI). Functional Networks (FN) tool was compared with different...

... or empirical) were developed to relate the drilling parameters with the rate of penetrations and to predict the drilling efficiency. However, these models are arrived at by ignoring some parameters or employing simplifying assumption(s), which may lead to over or under optimistic drilling performance...

... speed (RPM), rate of penetration (ROP), mud weight (MW), bulk density (RHOB), porosity (ϕ) and compressional time (Δt). A real field data is used to predict the formation pressure using Fuzzy Logic (FL) which is one technique of AI. Fuzzy Logic (FL) tool was compared with different empirical models. FL...

... of the data and prevent full polarization of the Hydrogen Protons in the formation, thus, introducing errors in the measurement of total porosity, fluid fractions, and permeability. The axial motion (rate of penetration) of the magnetic resonance data has multiple effects on the acquired data. The main...

... The rate of penetration (ROP) is the speed at which the drilling bit progresses into a formation. The value of the ROP should be optimized as possible for successful drilling operation with the minimum cost. The ROP is influenced by numerous factors that have a high degree of dependency...

... Abstract Hole cleaning evaluation and prediction presents a challenge in drilling industry. The optimization of hole cleaning can reduce the down time during drilling operations. Good hole cleaning means high rate of penetration and less drilling problems. In this paper, a robust hole cleaning...

... stability issues, stuck pipe incidents, and induced severe losses. Additional problems experienced while drilling include shale dispersion, resulting in fine solids buildup in the drilling fluid, and the adherence of shale to the drill pipe and bit, reducing penetration rates. The customized drilling...

... protection anode electrolyte economic cathodic protection Corrosion Inhibition oilfield chemistry H2S management cathodic protection system protection society of petroleum engineers penetration cathodic current current requirement CP system Introduction Cathodic protection (CP) can...

... well control Upstream Oil & Gas Effectiveness application Bryant drilling fluids and materials porous media permeability penetration pump pressure polymer bartosek gel apparatus society of petroleum engineers The synthetic core is composed of a transparent plexi-glass cylinder...

... and Behavior ; PhD Thesis ", Colorado School of Mines , 2001 . 3- Batarseh , S.I. Gahan , B.C. and Sharma B.C. 2004 .: " Deep Hole Penetration of Rock for Oil Production Using Ytterbium Fiber Laser ", In SPIE 5448-98. SPIE High-Power Laser Ablation V , Taos, NM , 25–30 April 2004...

... Abstract Drill string vibration and shock loads are known as destructive loads while drilling and are the reason for tool failure, lost time and reduction in rate of penetration. Vibrations of drill strings can be effected by bit and bottom hole assembly design, interaction of bit/formation...

... flow rate reverse circulation execution deviation angle simulator rih penetration Introduction Coiled tubing fill cleanouts have been in existence for over four decades and today account for approx 30% of the services performed with CT. Both CT and conventional jointed pipe offer two...