RU2013117548A

RU2013117548A - TAIL FOR FASTENING A SIDE WELL OF A WELL

Info

Publication number: RU2013117548A
Application number: RU2013117548/03A
Authority: RU
Inventors: Альберт Габидуллович Зайнуллин; Павел Владимирович Поленок; Сергей Геннадьевич Малышев; Юрий Иванович Петлин; Владимир Ильич Московкин
Original assignee: Общество с ограниченной ответственностью "Наука"
Priority date: 2013-04-16
Filing date: 2013-04-16
Publication date: 2014-10-27
Also published as: RU2539489C2

Abstract

Хвостовик для крепления бокового ствола скважины, включающий обсадную колонну расчетной длины, башмак со смещенным к наружному диаметру торцом, связанный через технологический патрубок с корпусом фиксатора попадания башмака в боковой ствол скважины, образующих с внутренним патрубком шарнирную подвеску в шарнирной втулке, кроме подвески в шарнирной втулке установлен обратный клапан с открытой при помощи штока тарелкой при спуске в скважину, корпус стоп - узла снабжен обоймой под продавочные пробки, нижняя продавочная пробка расположена на патрубке подвески, которая через ствол скреплена с корпусом извлекаемого узла хвостовика, на корпусе закреплена корончатая втулка на которую одет верх профильной перемычки, а нижняя сторона посажена на замок соединенный внутренней левой резьбой с подвеской, образовавшие закрытую полость внутри перемычки, отличающийся тем, что внутренняя полость перемычки закрыта клапаном и дополнительно цанговой заслонкой от скачков давления в гидравлическом канале хвостовика, полость имеет два герметизируемых канала для заполнения водой и выхода воздуха, гофры перемычки одеты на корончатые выступы втулки с герметизацией, а нижняя сторона состыкована с замком, в котором выполнено посадочное место под отсекатель пласта, сам замок по левой резьбе соединен с подвеской, образовав разъединительный узел, шарнирная подвеска из башмака, технологического патрубка и корпуса фиксатора попадания в боковой ствол скважины выполнена с возможностью как осесимметричного, так и радиального перемещения по стволу скважины.A shank for attaching a side wellbore, including a casing of a calculated length, a shoe with an end face offset to the outside diameter, connected through a technological pipe to the shoe retainer housing in the side of the well, forming an articulated suspension in the articulated sleeve with an internal pipe, except for the suspension in the articulated sleeve a non-return valve is installed with a plate open with the rod during descent into the well, the body of the stop - node is provided with a clip for squeezing plugs, the bottom squeezing plug is located and on the suspension pipe, which is fastened through the barrel to the body of the retractable shank assembly, a crown sleeve is fixed on the body on which the top of the profile jumper is dressed, and the lower side is locked with an internal left-hand thread with the suspension, forming a closed cavity inside the jumper, characterized in that the internal cavity of the bridge is closed by a valve and an additional collet damper from pressure surges in the hydraulic channel of the liner; the cavity has two sealed channels for filling with water and an outlet Yes, air, the corrugations of the jumper are dressed on the castellated protrusions of the sleeve with sealing, and the lower side is docked with a lock in which a seat is made under the reservoir cutter, the lock itself is connected to the suspension on the left thread, forming a disconnecting unit, an articulated suspension from the shoe, technological pipe and the housing retainer falling into the side wellbore is made with the possibility of both axisymmetric and radial movement along the wellbore.

Claims

A shank for attaching a side wellbore, including a casing of a calculated length, a shoe with an end face offset to the outside diameter, connected through a technological pipe to the shoe retainer housing in the side of the well, forming an articulated suspension in the articulated sleeve with an internal pipe, except for the suspension in the articulated sleeve a non-return valve is installed with a plate open with the rod during descent into the well, the body of the stop - node is provided with a clip for squeezing plugs, the bottom squeezing plug is located and on the suspension pipe, which is fastened through the barrel to the body of the retractable shank assembly, a crown sleeve is fixed on the body on which the top of the profile jumper is dressed, and the lower side is locked with an internal left-hand thread with the suspension, forming a closed cavity inside the jumper, characterized in that the internal cavity of the bridge is closed by a valve and an additional collet damper from pressure surges in the hydraulic channel of the liner; the cavity has two sealed channels for filling with water and an outlet Yes, air, the corrugations of the jumper are dressed on the castellated protrusions of the sleeve with sealing, and the lower side is docked with a lock in which a seat is made under the reservoir cutter, the lock itself is connected to the suspension on the left thread, forming a disconnecting unit, an articulated suspension from the shoe, technological pipe and the housing retainer falling into the side wellbore is made with the possibility of both axisymmetric and radial movement along the wellbore.