Because the stress field around the horizontal wellbore changes dramatically, the effect of the horizontal wellbore on the stress field distribution should be considered.
LGR also requires the orthogonal orientation of hydraulic fracture with horizontal wellbore trajectory.
Gas drilling is considered as an ideal technique for drilling horizontal wellbore in hard formations.
Horizontal wellbore cleanout by rotating jets has been developed rapidly in the past decades.
Open image in new window Fig. 1 The section across the horizontal wellbore of the reservoir.
Open image in new window Fig. 2 The horizontal wellbore model diagram.
Figure 3 shows a model of stress fields considering interaction between fractures and the horizontal wellbore.
The theoretical method overestimates the induced stress in the horizontal wellbore direction.
Compared with the length of the horizontal wellbore, the perforation is rather short.
Assume that fluid in horizontal wellbore is incompressible and flows isothermally.
The oil water contact moves upward to the horizontal wellbore in the vertical direction.
