Hole cleaning imperative in coiled tubing drilling operations

Journal Article · Fri Sep 01 00:00:00 EDT 1995 · Petroleum Engineer International

OSTI ID:137144

Rameswar, R M ^[1]; Mudda, K ^[2]

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1. Louisiana State Univ., Shreveport, LA (United States)
2. Univ. of Houston, TX (United States)

Annular flow modeling in coiled tubing applications is essential for optimizing mud rheology and keeping the hole clean. Cuttings transport in coiled tubing drilling must be optimized, particularly the modeling of hole cleaning capabilities. The effects of two different muds in contrasting geometries on hold cleaning efficiency are considered, with the simulation performed using Petrocalc 14. Coiled tubing is widely used to drill new vertical and horizontal wells, and in re-entry operations. Horizontal well problems are subsequently modeled, where annular eccentricities can range anywhere from concentric to highly offset, given the highly buckled or helically deflected states of many drill coils.

• OSTI ID: 137144
• Journal Information: Petroleum Engineer International, Vol. 68, Issue 9; Other Information: PBD: Sep 1995
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
OIL WELLS
WELL DRILLING
NATURAL GAS WELLS
CUTTINGS REMOVAL
DRILLING FLUIDS
MATHEMATICAL MODELS
RHEOLOGY
PROCESS CONTROL
COMPUTERIZED SIMULATION