The HTBC technology implementation
Intensification of oil and gas production
The HTBC technology implementation during the wellbore completion prevents the mud filtrate colmation of the formation simultaneously providing a complex solution to support the filtration characteristics of the formation and saving the accomplished result for several years.
The HTBC direct impact on the formation does not disrupt the hydrocarbon collector structure.
It forms a diminished pressure zone hence providing higher fluid influx into the wellbore.
The HTBC direct impact on the formation does not disrupt the hydrocarbon collector structure.
It forms a diminished pressure zone hence providing higher fluid influx into the wellbore.
Well Drilling and Colmation
The well site construction efficiency is directly related to the productivity of the wellbore as well as to the utmost collector permeability preservation and to the duration of the high-productivity exploitation period.
In recent years the problem of preserving the wellbore productive capacity has grown significantly, primarily because of involving technically complex and low-permeable productive formation deposits into the oil production industry, that require much higher accuracy when bringing the well on line.
The main negative factor of the well completion is the contact of the productive formation with the drilling agent while the borehole drilling, which considerably exacerbates the wellbore productive capacity.
After contacting the formation, the solid phase of the drilling agent starts accumulating into the near-wellbore formation (the process of colmation) which causes sealing of the porous zone with the mud filtrate; the mud filtrate interacts not only with the formation fluids but with the formation rock, too. The negative impact of the mud filtrate penetrated into the formation may have various forms. It may cause clay particles swelling in the formation that decreases the bottom hole zone permeability; as well it may generate oil-water emulsions that decrease the bottom hole zone permeability, too; besides, it may remain in the porous formation due to the capillary forces and can be extracted from the pores only with the help of significant pressure bumps, which exacerbates oil migration through the wellbore, especially in low-permeable hydrocarbon collectors; and at last, the mud filtrate contact with highly mineralized water may constitute insoluble sediment in the porous formation.
The physicochemical nature of the near-borewell colmation is quite sophisticated because the phenomenon of colmation combines the processes of adhesion and gravity of large suspension particles, colloid clotting and different kinds of salt sorption.
• Permeability decrease occurs according to quite a rectilinear law, due to the unconstrained particle penetration into the porous formation;
• The permeable formation gets clogged simultaneously getting a filtration cake formed.
In recent years the problem of preserving the wellbore productive capacity has grown significantly, primarily because of involving technically complex and low-permeable productive formation deposits into the oil production industry, that require much higher accuracy when bringing the well on line.
The main negative factor of the well completion is the contact of the productive formation with the drilling agent while the borehole drilling, which considerably exacerbates the wellbore productive capacity.
After contacting the formation, the solid phase of the drilling agent starts accumulating into the near-wellbore formation (the process of colmation) which causes sealing of the porous zone with the mud filtrate; the mud filtrate interacts not only with the formation fluids but with the formation rock, too. The negative impact of the mud filtrate penetrated into the formation may have various forms. It may cause clay particles swelling in the formation that decreases the bottom hole zone permeability; as well it may generate oil-water emulsions that decrease the bottom hole zone permeability, too; besides, it may remain in the porous formation due to the capillary forces and can be extracted from the pores only with the help of significant pressure bumps, which exacerbates oil migration through the wellbore, especially in low-permeable hydrocarbon collectors; and at last, the mud filtrate contact with highly mineralized water may constitute insoluble sediment in the porous formation.
The physicochemical nature of the near-borewell colmation is quite sophisticated because the phenomenon of colmation combines the processes of adhesion and gravity of large suspension particles, colloid clotting and different kinds of salt sorption.
• Permeability decrease occurs according to quite a rectilinear law, due to the unconstrained particle penetration into the porous formation;
• The permeable formation gets clogged simultaneously getting a filtration cake formed.
The technology implementation during the oil extraction intensification of the current well stock allows providing more than a double increase of oil production and save the result for several years merely with the help of a few single time capital well workover operations.
The experience of the HTBC implementation demonstrates the reliable wellbore work with no overhaul period from 3 up to 7 years.
The experience of the HTBC implementation demonstrates the reliable wellbore work with no overhaul period from 3 up to 7 years.
Oil & Gas Extraction Intensification
Nowadays many oil-producing companies still come across the problem of inactive wellbore stock. Basically, most of them constantly equilibrate on the verge of the 10 percent normative barrier.
The process of the inactive wellbore stock appears to be a multi-stage one, as there are several reasons for the well shutdown. The first reason of all is the natural resource depletion which is mainly represented by 30-50 percent of the hydrocarbon remains which are impossible to be separated from the formation rock.
The process of the inactive wellbore stock appears to be a multi-stage one, as there are several reasons for the well shutdown. The first reason of all is the natural resource depletion which is mainly represented by 30-50 percent of the hydrocarbon remains which are impossible to be separated from the formation rock.
Well reactivation/ Bringing the Well on to Stable Production
The HTBC technology implementation allows providing the extraction of hydrocarbons which were previously considered to be not subject to extraction.
All rights reserved
© LLC "Clean Energy"
© LLC "Clean Energy"
