RU2008132653A

RU2008132653A - METHOD FOR DEVELOPING HIGH-VISCOUS OIL DEPOSITS

Info

Publication number: RU2008132653A
Application number: RU2008132653/03A
Authority: RU
Inventors: Шамил Габдулхаевич Ягудин (RU); Шамил Габдулхаевич Ягудин; Руслан Радикович Харитонов (RU); Руслан Радикович Харитонов; Ренат Халиуллович Муслимов (RU); Ренат Халиуллович Муслимов; Таслия Магруфовна Муртазина (RU); Таслия Магруфовна Муртазина; Ильгизар Абузарович Галикеев (RU); Ильгизар Абузарович Галикеев
Original assignee: Открытое акционерное общество "Татнефтепром-Зюзеевнефть" (RU); Открытое акционерное общество "Татнефтепром-Зюзеевнефть"
Priority date: 2008-08-07
Filing date: 2008-08-07
Publication date: 2010-02-20
Also published as: RU2398104C2

Abstract

Способ разработки месторождений высоковязкой нефти, плотность которой в разогретом состоянии ниже плотности теплоносителя, включающий бурение основного ствола скважины, из которой производят бурение бокового горизонтального ствола, спуск в него перфорированной колонны, спуск насосно-компрессорных труб в основной ствол скважины, установку ниже интервала зарезки бокового горизонтального ствола пакера, который герметизирует пространство между насосно-компрессорной трубой и основной скважиной, закачку теплоносителя по одному стволу и отбор высоковязкой нефти из другого ствола скважины, отличающийся тем, что нижнюю часть основного ствола скважины бурят в виде горизонтального участка, размещенного в продуктивном пласте, а боковой горизонтальный ствол бурят выше горизонтального участка основной скважины в пределах данного продуктивного пласта, при этом после установки пакера, но перед спуском насосно-компрессорных труб, их оснащают трубчатым фильтром и расположенными выше ниппелем с отклонителем, оснащенным окном, выполненным в стенке насосно-компрессорных труб выше ниппеля, и обводным каналом, вход которого сообщен с надклиновым пространством колонны насосно-компрессорных труб, а выход - с подпакерным пространством колонны насосно-компрессорных труб, после чего колонну насосно-компрессорных труб спускают в основной ствол скважины до герметичного взаимодействия ниппеля с пакером с размещением трубчатого фильтра в горизонтальном участке и расположением окна напротив интервала зарезки бокового горизонтального ствола пакера, затем перфорированную колонну на технологической колонне труб с дополA method for developing highly viscous oil fields, the density of which in the preheated state is lower than the density of the coolant, including drilling the main wellbore, from which the horizontal sidetrack is drilled, the perforated string is lowered into it, the tubing pipes are lowered into the main wellbore, installation is lower than the lateral cutoff interval horizontal trunk of the packer, which seals the space between the tubing and the main well, pumping coolant along one trunk selection of highly viscous oil from another wellbore, characterized in that the lower part of the main wellbore is drilled in the form of a horizontal section located in the reservoir, and the lateral horizontal well is drilled above the horizontal section of the main well within this reservoir, after which the packer is installed, but before lowering the tubing, they are equipped with a tubular filter and a nipple located above with a deflector equipped with a window made in the wall of the tubing e of the nipple, and a bypass channel, the input of which is connected with the super-wedge space of the tubing string, and the outlet is with the sub-packer space of the tubing string, after which the tubing string is lowered into the main wellbore until the nipple interacts with the packer with by placing a tubular filter in a horizontal section and arranging a window opposite the cutoff interval of the lateral horizontal trunk of the packer, then a perforated column on the process pipe string with additional

Claims

A method for developing highly viscous oil fields, the density of which in the preheated state is lower than the density of the coolant, including drilling the main wellbore, from which the horizontal sidetrack is drilled, the perforated string is lowered into it, the tubing pipes are lowered into the main wellbore, installation is lower than the lateral cutoff interval horizontal trunk of the packer, which seals the space between the tubing and the main well, pumping coolant along one trunk selection of highly viscous oil from another wellbore, characterized in that the lower part of the main wellbore is drilled in the form of a horizontal section located in the reservoir, and the lateral horizontal well is drilled above the horizontal section of the main well within this reservoir, after which the packer is installed, but before lowering the tubing, they are equipped with a tubular filter and a nipple located above with a deflector equipped with a window made in the wall of the tubing e of the nipple, and a bypass channel, the input of which is connected with the super-wedge space of the tubing string, and the outlet is with the sub-packer space of the tubing string, after which the tubing string is lowered into the main wellbore until the nipple interacts with the packer with by placing a tubular filter in a horizontal section and arranging a window opposite the cutoff interval of the lateral horizontal trunk of the packer, then a perforated column on the process pipe string with additional the packer is lowered through the tubing string, the diverter and the window into the lateral horizontal trunk until the perforated tubing string is placed in its horizontal section, after which the additional packer is installed between the tubing and the tubing string above the window, but below the bypass channel entrance, the coolant is injected into the main wellbore through the annulus of the tubing and the tubing string, the bypass channel, the under-packer the tubing string and the filter, and selection from the lateral horizontal barrel through the perforated string along the tubing string.