... oil & gas information flexural measurement tool reservoir characterization casing and cementing emulsion receiver tie data tie arrival interface annular velocity case study 2 Introduction The new ultrasonic combined with classic pulse-echo technology and flexural wave imaging...

... field data. drilling operation Well Intervention Conference Directional Drilling debris Upstream Oil & Gas aitken real time system viscosity fluid application annular velocity circulation cleanout flow rate junk check coiled tubing drillout wiper trip plug frac plug solid...

... to coiled tubing drillouts and formulating a Best Practice (BP) to apply companywide to minimize "train wrecks." The primary focus of the DOG team was to create standards for coiled tubing jobs including the target Reynolds numbers, annular velocity, chemicals, viscosities, torque and drag, early warning...

..., stick slip, vibration, and lockup events. Adequate annular velocity is required to transport cuttings to surface. However, because of the presence of mud motors, MWD tools, and other flow restricting components, it is often difficult to achieve annular velocities high enough to effectively transport...

... that facilitates higher annular velocity and turbulent flow. This paper also reviews a field application in which the RFID sub was deployed in a multi-assembly tool string to clean out a perforated 7-in. liner section and cased-hole section for a North Sea well. Once the well reached total depth, the sub...

... related to mud removal and cement placement. Factors that affect mud removal, such as mud conditioning, annular velocity, pipe movement, wellbore characteristics, and the presence of a bottom plug, are investigated. Statistical analysis of the cement bond index indicates that some of these cement...

... tubing operations lateral length operation directional drilling reach vibrational tool larger diameter ct annular velocity service company completion installation and operations upstream oil & gas milling operation fluid rate horizontal drilling fatigue life friction coefficient...

... of the tests indicate that the highest sag occurs at low annular velocities and rotational speed and also at high inclination angles. It was observed that at inclination angles less than 60°, for any annular velocity, barite sag is not significant. Eccentricity of a non-rotating inner pipe did not have...

... well productivity initial completion operation completion operation procedure cleanup tool save rig time wellbore cleanup tool completion installation and operations society of petroleum engineers casing and cementing debris ultra-clean tm non-rotating scraper annular velocity...

..., and annular velocity of the wash spacer(s), which have become the basis for most displacement programs, although critical to overall efficiency, are not the primary agents of mud removal during a wellbore cleanup. Data correlations between the volume of mud observed in the samples analyzed and certain spacer...

... Average Annular Velocity, ft/min 12.25 <2 35.9 13 2.3 31 14 4 39.8 15 6.3 49 16 9.2 58 The dynamic filtration test is run over a synthetic core with a defined permeability and pore size. A generalized test procedure is as follows: Table 1 Well 1 Mud Properties...

... and understand this relationship. Changes in mud weight as a function of shear rate, hole angle, annular velocity and eccentricity correlate with ultra-low shear rate viscosity. Based upon experimental results, field technology has been developed to predict the potential for barite sag of invert-emulsion muds...

..., and stuck pipe. A laboratory flow loop has been used to evaluate the influence of key drilling parameters on barite sag. Results show that the highest sag occurs at angles in the region 60-75°, particularly at low annular velocities. Drillpipe rotation is shown to be particularly beneficial in minimising...

... the feasibility of using CT for a given drilling project are reviewed. These parameters include CT tension, helical buckling which limits the weight on bit (WOB) and the horizontal reach, CT collapse pressure when drilling underbalanced, CT fatigue, and the usual hydraulic parameters such as annular velocity...

... chemistry drilling operation wellbore integrity drilling fluids and materials shale nozzle shear rate annular velocity washout drilling rate drilling fluid property Abstract This study shows that nozzle velocity and not annular velocity causes hole enlargement in competent formations. Five...

... and formulation society of petroleum engineers annular velocity SPE 28321 Society of Petroleum Engineers Quality Management Alliance Eliminates Plug Failures James Heathman*, Robert Carpenter Ken Marcel*, Charles Rimert, Anthony Badalamenti* *Halliburton Energy Services **ARCO tVastar SPEMembers Copyright...

... rate hole-cleaning analysis annular velocity slip velocity nmb model drilling fluids and materials equation simulator upstream oil & gas cone concentration computer model particle wellbore application drilling fluid management & disposal SPE Society of Petroleum Engineers SPE...

... in conjunction with experimentally obtained slip velocities allows the determination of the optimum annular velocity. It can also be used to determine if insufficient cutting transport should be enhanced by increasing drilling fluid viscosity or by increasing the circulation rate. The computer model also...

... provides an excellent measure of carrying capacity. A convenient linear relationship was found to exist between cutting transport ratio and the reciprocal of annular velocity. When each of the proposed correlations and the new technique were evaluated with respect to the experimental data, the new...

... of three and, in some cases, lowering the annular velocity. New data is also presented on borehole wall erosion and on better hole bottom cleaning with extended nozzles, especially when the nozzle angle is increased. Introduction Hydraulics has long been recognized as an important factor in drilling...