RU2339788C1 - Horizontal well control equipment - Google Patents

Abstract

FIELD: oil and gas industry.

SUBSTANCE: equipment contains case of tube head with two side holes forming connecting channels with borehole annulus, tube holder installed in the case of the well head and pressure tight to the case, reducing taper elbow, side branches connecting channels with reservoir of flow columns, bypass gate and gates on side branches. Two side holes in each are made in the case of the tube head and the tube holder; they form connecting channels with reservoir of the flow tubes column. The tube holder is additionally sealed against the case of the tube head, the sealing is installed above the side holes of the tube holder.

EFFECT: upgraded reliability of as well and simplification of service and operation of equipment.

1 dwg

Description

The invention relates to valve engineering, in particular to wellhead valves, and can be used in the oil and gas industry.

Known wellhead reinforcement comprising a housing with a communication channel with a tubing cavity, a communication channel with an annular space and a communication channel of a tubing cavity with an annular space, shut-off bodies installed in said communication channels, a working cavity, a conical coupling for suspension pipes, poppet shut-off valve and wellhead seal for sealing the polished rod of a submersible sucker rod pump. The armature is equipped with a lock-type chamber, made with the possibility of hermetically connecting to the housing coaxially with one of the locking bodies, while the lock-type chamber contains a movable rod for gripping the locking member and moving it into the chamber cavity, a slide gate for separating the chamber cavity from the working cavity of the mouth reinforcement wells with a channel blocked by a needle valve (RF Patent 2168605, publ. 2001.06.10).

However, this design does not have duplicate lateral branches and its operation is possible only with oil production.

The known scheme of fountain fittings for gas wells, containing the body of the pipe head with two lateral branches, a sub, a root valve, an overhead valve, a cross with two side branches of a Christmas tree, a buffer valve (GOST 13846-89. Fountain and discharge valves. Typical schemes, basic parameters and technical requirements for construction. Analog - 1 l.).

However, the reinforcement made according to this scheme has large dimensions in height, which makes its maintenance and operation inconvenient.

The objective of the invention is to create a design of horizontal fountain fittings for gas wells, allowing to facilitate its maintenance and operation by reducing overall dimensions in height.

The problem is solved in that the horizontal fountain reinforcement comprises a tube head housing provided with two side openings forming communication channels with the annulus, a pipe holder installed in the pipe of the pipe head housing and sealed relative to it, a sub, lateral branches of the communication channels with a tubing cavity , buffer gate valve, gate valve on the lateral branches. Two lateral openings are made in the body of the tube head and the tube holder, forming communication channels with the cavity of the tubing. The pipe holder is additionally sealed relative to the body of the pipe head and the seal is installed above the side holes of the pipe holder.

In the future, the invention is illustrated by a description, a specific example, a drawing, which shows a General view of the reinforcement of the fountain horizontal.

The horizontal fountain fittings include a pipe head housing 1 (see drawing), equipped with communication channels with an annular space 2 and 3 and communication channels 4 and 5 with a tubing cavity. A tube holder 6 is installed in the housing of the pipe head 1 and sealed relative to the housing of the pipe head 1 with seals 7 and 8. A sub 9 is fixed to the housing of the pipe head 1. A buffer valve 10 is installed on the sub 9. Side bends 11 communication channels with annular space and side bends 12 channels messages with the cavity of the tubing are mounted on the housing of the tubing head 1 and may consist of either an ode or several valves.

Horizontal fountain fittings are installed on the column piping 13.

The produced medium through a communication channel 4 or 5 with the cavity of the tubing enters the left or right lateral branch 12 of the fountain horizontal armature, the second side branch is a backup and serves, if necessary, for injecting methanol.

If it is necessary to replace the valves in the upper lateral outlets, a plug is screwed into the thread of the pipe holder 6.

The proposed horizontal fountain reinforcement ensures reliable operation of a gas well. To control the valves of the lateral branches 12 in the well, there is no need to use special service sites, which facilitates the maintenance and operation of valves.

Claims (1)

Horizontal fountain fittings, comprising a tube head housing, provided with two side openings forming communication channels with an annular space, a pipe holder installed in a pipe head housing and sealed relative to it, an adapter, lateral channels of communication channels with a tubing cavity, a buffer valve, gate valves on the lateral branches, characterized in that two side openings are made in the body of the tube head and the tube holder, forming communication channels with a pump-lumen cavity of spring pipes furthermore tube holder additionally sealed against the tubing head housing and the seal is installed above the lateral orifices pipe holder.