Mechanical Behaviors of Bottom Hole Assembly with Bent-Housing Positive Displacement Motor Under Rotary Drilling

Liu, Haosheng; Ma, Tianshou; Chen, Ping; Wang, Xudong; Wang, Xingming

doi:10.1007/s13369-017-2564-5

Cited by 12 publications

(14 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In oil and gas drilling engineering, fully rotary drilling refers to the combined movements of the rotary table and down-hole motor [1]. Industrial down-hole motors can be classified into two categories: the positive displacement motor (PDM), and the turbo-drill.…”

Section: Introductionmentioning

confidence: 99%

“…Rotary drilling, a kind of fully rotary drilling method, is mainly utilized to improve drill efficiency by reducing excessive drag of the drill-string, improving borehole cleaning, improving the control of the weight-on-bit (WOB), and increasing the rate of penetration (ROP); thus, it can be used for drilling in the vertical section, hold-on section, and horizontal section. Currently, drilling that combines the PDM tool and PDC bit is still the main method used to drill a directional well [1,2]. In addition, fully rotary drilling can also be employed in speedup activities of deep wells.…”

Section: Introductionmentioning

confidence: 99%

“…Many scholars have therefore conducted studies on the mechanical behavior and steering ability of the BHA. Since the first mechanical model of the BHA was proposed by Lubinski and Woods [8], the development of the BHA mechanical model has advanced from an analytical to a numerical model, from a two-dimensional (2D) to a three-dimensional (3D) model, and from a static to a dynamic model [1]. Some related books introduced the systematic models and methods for the BHA, such as Developments in Petroleum Engineering (Volume I) [9], Developments in Petroleum Engineering (Volume II) [10], and Deviation Control Theory and Practice [11].…”

Section: Introductionmentioning

confidence: 99%

“…These books discuss the factors influencing the inclination angle and doglegs in rotary drilling holes, and how to control the inclination and BHA performance prediction [12]. However, most of them mainly investigated static or quasi-static mechanical behavior and the steering ability of conventional multi-stabilizer BHA and conventional BHA with a PDM tool [1]. Regarding the dynamic behavior and steering ability of BHA with bent-housing PDM, Dykstra [13] investigated the dynamic behavior of BHA by using the dynamic model of a rotor.…”

Section: Introductionmentioning

confidence: 99%

“…The effects of mud damping, driving torque, and spatially varying axial load were also included, and simulations revealed resonant frequencies and showed the relative severity of the contact in each span of the BHA. Liu et al [1] included the dynamic centrifugal force generated by drill-string rotation to propose a mechanical model of BHA with bent-housing PDM using the Timoshenko beam theory. The factors influencing the average bit side force and resultant steering force were investigated, and the results indicated that the rotational speed of the drill-string significantly influences the steering ability.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Numerical Modeling of Dynamic Behavior and Steering Ability of a Bottom Hole Assembly with a Bent-Housing Positive Displacement Motor Under Rotary Drilling Conditions

Chen

et al. 2018

Energies

Self Cite

View full text Add to dashboard Cite

Fully rotary drilling is one of many useful technologies used for the exploitation of petroleum and geothermal resources, but fully rotating drill-strings are extremely complicated. Therefore, according to the Hamilton principle, a non-linear coupled bottom hole assembly (BHA)-bit-formation-wellbore model is proposed for BHAs with bent-housing positive displacement motor using the finite element method to investigate the dynamic behavior and steering ability under fully rotary drilling. The impact force, acceleration, axial loading, torque, and dynamic stress were simulated, and factors influencing the dynamic steering forces were investigated. The results indicate that the impact force, acceleration, axial loading, torque, and dynamic stress under fully rotary drilling are much higher than under conventional drilling. The numerical simulation and field test in well B confirmed that the rotation of the drill-string is conducive to the hold-on of the deviation angle. With the increase in the weight-on-bit, bend angle, and stabilizer height, the deflecting force on a drill bit increases. Conversely, with the increase in stabilizer diameter, the deflecting force on the drill bit decreases; the lower the deflecting force, the better the effectiveness of hold-on. With increasing deviation angle, the deflecting force on the drill bit first decreases and then increases. The present model can provide a theoretical basis for wellbore trajectory control and optimization design of BHA.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations