SU1286734A1 - Arrangement for mounting valve equipment onto head of crushing well - Google Patents

Abstract

The invention relates to the field of drilling and is intended to hermetically seal the wellhead when flowing. The purpose of the invention is to increase the reliability of the device1. To do this, it contains a collar 1, on which the swinging frame 2 is hinged. The drive 3 is fixed to it in the form of a hydraulic cylinder (HZ) 4 connected with a crank mechanism 5. The latter is hinged moving

Description

cl

00

about

with

traverse (PT) 7 and collar 1. The length of the connecting rod is E- - R, where Vt is the distance from the axis of rotation of the frame 2 to the connecting point of the connecting rod with the PT 7; b is the distance from the axis of the crank to the axis of rotation of the frame 2j R is the length of the crank arm associated with the connecting rod. Locking equipment 6 is installed on the ПТ 7, while the ПТ 7 is located on the guides 8, made in the upper part with the stops 9.

mounted on a sealed pipe (T) 10. In HZ 4, working fluid is supplied. Under the action of the force that has arisen at the point of attachment of the connecting rod to the PT 7, the frame 2 is rotated and the PT 7 is brought to the axis of the well. Next, the mechanism 5 lowers PT 7 with fixed equipment 6 on T 10 and closes it. After the fountain has been dismantled, equipment 6 is disconnected from PT 7 and left at T 10. 4 sludge.

one

The invention relates to drilling, in particular to blowout preventers for the tight closure of a wellhead in the case of flowing t

The aim of the invention is to increase the reliability of operation.

Figure 1 shows the device in the initial position, side view; Fig. 2 is the same when the vertical position is reached; fig. 3 - the same, after aiming the shut-off equipment on the sealing tube; Fig. 4 - the same, at the moment of reaching the vertical position, is a front view.

The device includes a collar 1, on which the swinging frame 2 is hinged, the drive 3, made in the form of a power element 4, the drive hydraulic cylinder connected to the crank mechanism 5, and the locking equipment 6 mounted on the mobile yoke 7 mounted on guides 8, made in the upper part with stops 9. The force element in the form of a hydraulic cylinder 4 is fixed on the movable frame 2, and the crank-connecting rod mechanism 5 is hinge but connected to the movable cross member 7 and the collar, and h is the distance from the axis of rotation audio frame before the connection point of the connecting rod with the cross member; b is the distance from the axis of the crank to the axis of rotation of the frame, R is the length of the crank arm associated with the connecting rod, and the connecting rod t forms an acute angle of 1 with the guides 8. The hydraulic cylinder 4 is connected to the discharge pipe (not shown). The device is intended for sealing the pipe 10.

The device works as follows.

When the fountain appears, the device is fixed on the pipe to be sealed with 10 clamp 1. The hydraulic station is turned on and the working fluid is supplied through the injection pipeline to the hydraulic cylinder 4. Since the movement of the yoke 7 upwards along the guides 8 is prevented by the stops 9, at the points of attachment of the connecting rod to the yoke 7, a force appears that is directed perpendicular to the longitudinal axis of the frame 2, which turns it counterclockwise.

Under the action of this force, frame 2 with 7 is brought to a vertical position on the axis of the well. With further submission; The working fluid in the hydraulic cylinder 4 crank mechanism 5 guides (lowers) the traverse 7 with the locking equipment 6 fixed on it to the sealing pipe 10 and closes the mouth of the flowing well. Thus, in one stroke of the hydraulic cylinder 4, the locking equipment 6 is pulled out onto the well axis and guided to the sealed pipe 10. After the fountain is shut down, the working fluid to the hydraulic cylinder 4 is stopped, the locking equipment 6 is disconnected from the crosshead 7 and left on the pipe 10. The collar 2 is removed from the sealed pipe 10 and the device is removed from the wellhead. After fixing on the traverse 7 new zapornogsg

y t / f-S

5

T5

2

/ Y

Th &

five

l

d

- lgd

J /

X

FIG. four

Claims (1)

Invention Formula A device for guiding the locking equipment at the mouth of an openly flowing well, including a collar, guides connected in the upper part with a movable cross-member for mounting the locking equipment a driving cylinder and a traction body pivotally connected to the yoke and a cross member, which in the initial position forms an acute angle with the longitudinal axis of the hydraulic cylinder, characterized in that, in order to increase the reliability of operation, it is equipped with a frame hinged to the yoke and mounted on guides over the crossbeam lugs, while the guides in the lower part and the hydraulic cylinder are rigidly connected to the frame, and the traction body is made in the form of a crank mechanism connecting the hydraulic rod, the length of the connecting rod is chosen from osenia de h b R e Vh + b - R, the distance from the axis of rotation of the frame to the point of connection of the connecting rod with the crosshead, the distance from the axis of the crank to the axis of rotation of the frame, the length of the crank arm associated with the connecting rod. . y t / f-S 5 T5 Th & five l d - lgd J / X 2 / Y Editor A.Gulko Compiled by I. Kepke Tehred M. Khodanich Proofreader A.T. Order 7691/31 Circulation 532 Subscription VNShPI USSR State Committee for Inventions and Discoveries 4/5, Moscow, Zh-35, Raushsk nab. 113035 . Prowse; Odes ;; n; -P y ;; afy ;;;;; yo; pry ;; yG, UZHGOROD, ul. design, 4 FIG. four