... in terms of hydraulic and shear bond strength (key factors in evaluating the interfacial properties of the cement-casing interface) is compared to that of API Class G cement at 25°C and at a pressure of 34.5 bar (500 psi). The hydraulic sealability was measured with a custom-made setup, which allows...

... and the composition of the slurry are the critical parameters that influence the shrinkage reduction value. However, use of SRA can result in early expansion and forming portlandite which can have a negative effect on mechanical strength of the cement ( Sant et al. 2011 ). Additionally, expansive agents are also...

... operation Upstream Oil & Gas landing string completion screen run North Sea string weight completion string single trip string design society of petroleum engineers Directional Drilling strength Simulation lower completion reach drilling multilateral well downhole drilling data surface...

... Another specialized objective was to have a compressive strength below the formation strength so that any cement left in the open hole could be easily drilled out to avoid sidetracking. A compressive strength in the range of 50 to 130 psi is sufficient to prevent the flow of fluids and withstand...

... these objectives, cement samples and casing alloys were tested in the lab prior to field operations. This lab testing includes measuring the hydraulic and shear bond strength between the cement and casing after the cement cures. In this study, shear bond strength and hydraulic bond strength between Portland...

... production control Drillstem Testing drawdown bean-up time pressure gradient pressure profile permeability strength geometry cavity wellbore transient pressure gradient boundary condition characteristic time time constant equation tensile failure sand production tensile stress van den Hoek...

... logging system is supported by the Research Council of Norway' Petromaks 2 Ground breaking technology research program. well logging strength communication Upstream Oil & Gas effective density Well Condition application log analysis resolution microcontroller magazine sensor antenna...

... was varied from 100°F to 350°F. The compressive strength, shear bond strength, porosity, and permeability of the aged and unaged specimens were measured to quantify the alteration in these critical cement properties. Observations are supported with FTIR, SEM and EDS analyses. As temperature increases...

... of the new ellipse, including increased accuracy. Results help clarify many questions about the new API collapse equations, namely where they come from and how to use them. Upstream Oil & Gas axial stress pipe collapse resistance annular pressure drilling strength api collapse equation...

..., increasing the tensile strength of conventional systems without compensating for shrinkage can provide some reduction of the risk of failure ( McCulloch et al. 2003 ). Therefore, in addition to mechanical properties, the cement system shrinkage should be compensated effectively to maintain the desired zonal...

..., steerability, and etc. However, there have been no previous studies, so far, which have discussed reamer/bit size ratio in relation to rock mechanic and geomechanic properties of formation. Analytical MSE It is well-known that the strength of a rock is mainly controlled by the minimum principal stress...

..., etc.) is also shown. cement property cement chemistry strength cement formulation casing and cementing annular sealant Exhibition wellbore integrity Upstream Oil & Gas operational load cement sheath integrity OWC Wellbore Design resin cement Cement System integrity operation...

... and provide sufficient gelation times at temperatures as low as 40°F in treated injection wells having undergone extensive cold ocean water injection. In these low temperature applications, gelant reaction and gel-strength-development rates are significantly lower compared to traditional encountered reservoir...

... of the liner by the spacer (including surfactant) Establishing effective laminar flow in order to have plug-type displacement of each consecutive fluid (mud – spacer – cement slurry) and validating this using 2-D fluid placement simulator Centralization cement chemistry strength expandable liner...

... cement formulation cement property Upstream Oil & Gas cement chemistry exposure test autoclave silica Brine month exposure crude oil calcium casing and cementing long-term integrity exposure tensile strength downhole condition permeability well cement compressive strength...

... process, strength of the formed gel against applied external forces, gel stability, gel shrinkage, and post-gelation time behavior. This investigation has been conducted for different combinations (gelant systems) of sodium silicate with two types of polymers (a biopolymer and a synthetic polymer) along...

... rock shear strength has been adapted to soft materials such as filter cakes. A soft metal blade with a strain gauge attached to it and calibrated to obtain the deformation to force correspondence replaces the conventional cutter in the scratch apparatus. The shear strength is obtained from...

... Abstract The distributions of various parameters such as of the petro-physical properties, fluid contacts, relative permeabilities, aquifer strength etc. influence oil production profile. This requires implementing probabilistic approaches important for the field's performance prediction...

...) under a pressure of 5000 psi. This work studies the effect of curing temperature and NaOH concentration on the mechanical properties of the specimens. Uniaxial compressive strength (UCS) tests and Ultrasonic cement analyzer (UCA) tests were carried out to measure the compressive strength development...