... Figure 1 shows the schematic illustration of the polypropylene fiber, which has a triangular shaped structure that provides higher surface area and higher flexural strength than the ordinary rounded shape structure, ( Liu et al. 2012 , Park et al. 2003 , Patel et.al. 2015) . It is common...

... In addition to the (R) measurement, the values of unconfined compressive strength (UCS), dynamic Young’s modulus (E), and dynamic Poisson’s ratio (V) of 10 sandstones samples from the Sanamah Formation were obtained in the laboratory and the results are shown in Table 2 . The in-situ...

..., and to reduce the nonproductive time (NPT). ROP depends on many variables such as; drilling parameters, fluid properties, and formation strength. Previous models of ROP did not include the effect of the change in rock mechanics on the ROP prediction. Several models were developed based on a regression...

... fracturing treatment depends on delivering the proppant as pillar stages with a good suspension. This suspension keeps the proppant within the stage, prevents the proppant from diffusing out of the stage, and improves the mechanical strength of the pillar during closure. Resin based chemistries were proposed...

... shown the presence of a very large amount of monocrystalline quartz in the uncoated sand samples, which also displayed reduced mechanical strength as a result of microimperfections in the uncoated sand. A comparative study showed that after resin coating the angular and microfractured sand, mechanical...

... on the hydration process of the cement was studied using isothermal calorimeter. The findings of this investigation show that adding GNPs to oil well cement systems improved the mechanical properties of the cement as the compressive and tensile strength of the cement increased by 10% and 30%, respectively...

... of acid and concentration, pumping rate and the required acid volume are optimized depending on rock mineralogy and strength. The acid penetration distance on carbonate has been reported by many studies, however, due to high difficulty and unpredictability of the fracture conductivity, limited efforts...

... thereof: Raw and processed log data. Volumetric analysis and other available survey (TOC, NMR, mud logs). Image logs. Borehole profile log (preferably 2-3 axis). Estimated rock strength (unconfined compressive strength [UCS]). Laboratory analysis requirements including minimum core...

... on the strength of the emulsion. Glass beads as a porous medium and a capillary tube to measure the apparent viscosity were used to perform the tests at reservoir conditions. Three types of coated silica particles were used to conduct this study. Three qualities were tested: 50, 70 and 90%. Also, five shear...

... for severe to total losses pumpable through a BHA was the operator's wish. In this paper, successful field applications proving the advantages of a new high-fluid-loss, high-strength (HFHS) lost circulation solution in different fields, formations, and sections will be covered in detail. The paper will also...

... issue gate valve agent remedial operation polymer resin system hydrostatic pressure different temperature surface remedial operation resin system rheology operation strength cement slurry gas migration society of petroleum engineers Introduction The main objective of well cementing...

... its flowability before and after the reaction and estimating the compressive strength. Additionally, the developed strength robustness of the CS-LCM was evaluated by its ability to withstand large differential pressures across extra-large holes (31 mm) in test media (simulating vugs in a formation...

... Abstract Unconfined compressive strength (UCS) of rock is a key parameter in drilling and stimulation of oil and gas wells such as wellbore stability and fracturing operations. Better estimates of UCS could increase the efficiency of drilling and stimulation operations. Current techniques...

... fluids and materials Upstream Oil & Gas prevent cement failure drilling fluid chemistry drilling fluid property casing and cementing Simulation drilling fluid selection and formulation drilling fluid formulation cement failure operation API consistency cement slurry compressive strength...

... long-term wellbore integrity. Results indicated that elastic cements are more suitable for cyclic loads attained during fracturing and production operations because of their higher strength-to-elastic modulus ratio. Finally, ultrasonic tools were used to diagnose the cement integrity after cementing...

... conditions (usually above 500° F), current valve seals made of plastic or rubber are no longer suitable, because the material loses its mechanical strength and becomes very soft. Therefore, these seal can easily extrude and fail under pressure. Metal-to-metal seals may perform better in HPHT conditions...

... cohesion functional network SVM society of petroleum engineers prediction average absolute percentage error reservoir shear wave travel time neutron porosity coefficient bulk density reservoir characterization machine learning strength wave travel time anfis model Fang Anfis internal...

... the intermediate stress along with other geomechanical properties. Upstream Oil & Gas correlation horizontal stress Completion Installation and Operations sand production clastic gas reservoir completion design effective stress reservoir geomechanics strength drawdown pressure application...

... to consolidate loose sand and at the same time maintain good permeability. The new sand consolidation chemical system showed several key advantages over the current commercial products, including its easy mixing procedure and superior performance in consolidation strength and regained permeability. It was shown...

.... The ultimate objective is to establish formation dependent correlations that relate mechanical properties, such as rock strength, to a log measured physical property such as sonic velocity. The mechanical properties are critical input for many field problems, such as wellbore stability, sand production control...