Invasion Zones in Lateral Drilling

Shelukhin, V. V.; Yeltsov, I. N.

doi:10.1023/b:jamt.0000046032.36254.0a

Cited by 3 publications

(3 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The mathematical model proposed below describes the situation where the invading and formation fluids have identical viscosities and the mud density ρ m differs from the density of the formation fluid ρ r f only slightly. In this case, the fluid invading the formation loses clay particles on the wellbore wall, overcomes the additional hydraulic resistance of the filtrate cake and, when entering the formation, has the same density as the formation fluid [11].…”

Section: Governing Equations For Pressurementioning

confidence: 99%

See 1 more Smart Citation

Invasion around a horizontal wellbore

Shelukhin¹

2008

Eur. J. Appl. Math

Self Cite

View full text Add to dashboard Cite

A mathematical model is developed for mud cake growth and fluid invasion around a horizontal wellbore during drilling. The non-axisymmetry of the invasion front is addressed for the case of water based drilling mud and isotropic rock formation. It is shown that the invasion profile may lose convexity due to gravitation even though the filtrate density is the same as that of the pore fluid in the rock.

show abstract

Section: Governing Equations For Pressurementioning

confidence: 99%

“…If δ > 0, the convexity loss occurs by symmetry at the nearest front point where θ = −π/2. Observe, that in [11], the loss of convexity was proved analytically for the invasion model with a stable mud cake.…”

Section: Loss Of Convexitymentioning

confidence: 99%

Invasion around a horizontal wellbore

Shelukhin¹

2008

Eur. J. Appl. Math

Self Cite

View full text Add to dashboard Cite

show abstract

“…The problem of the penetration zone was previ ously considered in [1][2][3] without account for the mechanical stresses in the rocks surrounding the bore hole. However, when deep boreholes are drilled, the stresses in the rocks can increase significantly owing to the high pressure, which in turn leads to variations in the porosity, permeability, and penetration dynamics.…”

mentioning

confidence: 99%