... casing and cementing side force planning phase well control event prediction operation measurement error wear groove casing design culzean field bias error contact pressure tortuosity calibration wall thickness rotation intermediate casing pipe body contact nrdpp Introduction...

... as opposed to the stiff string model. In fact, many factors, including the stiffness of the string, the shape of the wellbore, and clearance, can influence the status of the string and the value of the contact side force on the string. The present stiff string model does not consider these factors, making...

... and analyses. The plan required strategic placement of Non-Rotating Protectors (NRPs) based on predicted casing wear, analyzed side forces, and lateral length. Additionally, the operations group wanted to simultaneously improve computer modeling for both casing wear and torque and drag (T&D) analysis. One...

.... For these RSS, side forces on bits are important factors that change drilling direction. However, because of the complex structure of BHA and wellbore environments, there is not a good analytical industry model currently available, so experience-based methods are commonly used to estimate BHA tendencies...

... section friction force drill string vibration rpm bottom test side force assumption wob indicator contact point drilling dysfunction bit run Background The Albright Montney field is located west of Grande Prairie, Alberta, Canada. In this area the Montney formation is a thinly bedded...

... is becoming more common, and increased knowledge for T&D modeling and interpretation is needed. drillstring design software program wellpath upstream oil & gas friction factor amplitude coefficient drilling operation side force torque modeling & simulation vertical section spe...

... of torque and drag modeling and derivation of a side force plot. This details whether pipe is lying on the side of the borehole (top or bottom) or is crossing over from one side to the other. The pipe body is assumed to be stiff between each tool joint. A simple geometric relationship between drill pipe...

... be expressed in the form of: (1) x ( z ) = P 1 + P 2 × cos ( W E I z ) + P 3 × sin ( W E I z ) + H ′ W z + q sin α 2 W × z 2 In which P 1 , P 2 , and P 3 are three variables H ' is the "normalized" side force...

... for the prediction of hole curvature based on measured bit response and modeled bottom hole assembly behavior. Bit side cutting is a nonlinear function of side force, gauge design, rotary speed, rate of penetration, rock strength, and cutter dull state. To characterize the bit's side cutting response, a series...

... and published performance predictions indicate that point-the-bit rotary steerable systems with long-gauge bits have a higher turn rate than commercial rivals which rely to a greater or lesser extent on side-cutting bits and an externally created side force. However, the most unequivocal evidence comes from...

... inclination pump card coefficient spe 22787 artificial lift system lbf diagnosis side force dynamometer card vector SPE Society of Petroleum Engineer'S SPE 22787 Design and Diagnosis of Deviated Rod-Pumped Wells S.G. Gibbs, Nabla Corp. II SPE Member Copyright 1991, Society of Petroleum Engineers...

... with three-cone bits. P. 67 directional drilling upstream oil & gas placement drill collar drilling operation gauge length bit selection three-cone bit side force bit gauge length tendency stabilizer placement poc bit diameter wellbore inclination spe 20411 drop tendency...

...) in (2), one can find the displace- ments along the drillstring. Then, using additional mathe- matics the reaction (side force) R at the bit, and the bit rotation oc: can be computed. As explained in a subse- quent section, the knowledge of Rand/or oc: is needed in predicting the deviation tendency...

... method, while retaining second order terms. An explicit formula for the bit side force is presented. In addition to previously demonstrated effects of WOB, TOB, and borehole curvatures on the bit side force, this paper demonstrates some non-linear effects on the bit side force, which increase with large...

... will be utilized to simulate the drilling process itself which includes rock penetration, bit torque, side forces, hole clearance considerations, bottom-hole assembly response, directional tendencies, and drilling rock formation interfaces. This paper will demonstrate GEODYN's ability to simulate the drilling...

.... Artificial Intelligence BHA design side force tendency drillstring design Upstream Oil & Gas displacement post analysis technique programming language drilling operation penetration rate stabilizer computer program application Directional Drilling node directional well assembly...

... side force constant inclination hole curvature effect configuration SPE 6779 THE EFFECT 'OF HOLE CURVATURE ON THE TRAJECTORY OF A BOREHOLE by Keith Millheim, Member SPE-AIME, Amoco Production Company ©Copyright 1977, American Institute of Mining, Metallurgical, and Petroleum Engineers. Inc. SPE...