The valve-choke

 

(57) Abstract:

The invention relates to the equipment infrastructure of oil and gas wells and can be used during the drilling and operation of oil and gas wells. The housing is made of two coaxial parts, connected with the possibility of its turning. The rotator is made in the form of a sleeve. Part of the body oriented fixed outer casing and dowels. The casing is made with a circular groove in which is located the control lever associated with the rotator. A circular groove to rotate the control lever to the desired angle. Fixed disk fixed in one of the housing parts. The movable disc is mounted in the rotator. Disks adjustably connected to the inner sleeve with the housing parts and preloaded by a spring. Increased reliability, reduced size and weight. 2 Il.

The invention relates to the equipment infrastructure of oil and gas wells, namely locking regulatory pressure devices in the well-layer, and can be used during the drilling and operation of oil and gas wells.

Known straight plug valves of the various designs, the main al and seals (reference cementing equipment. O. I. Bezdomny, A. I. Bulatov, V. D. Baranovskii and others - M.: Nedra, 1979, 202 S.].

The disadvantages of cork crane is the inability to manually manage at pressures above 6-7 MPa and lack of integrity on the circular surface of the contact tube and the housing jumpers between channels, especially after a few opening of the valve under pressure. The situation is exacerbated in the presence of a liquid (solution) of abrasive particles.

Known angular orifice, comprising a hollow body, flanges, installed in the housing movable and fixed disks with oval channels and turning the plug-rotator [Oij and Gas J, 1981, g XI, v 79,w 45,c 164].

Also known angular throttle, comprising a hollow body, flanges, installed in the housing movable and stationary spring-loaded disks with oval channels, turning fork rotator, the low-pressure chamber and the discharge chamber [ed. St. USSR N 1104239, CL E 21 B 33/03, 1984] is adopted for the prototype.

The disadvantages of this design are: the angular execution (possibly zasilanie fork and the subsequent inability of rotation), the inability to achieve full discharge pressure (max 45%) and the need to create significant holding gain is in and weight considerable dimensions and weight of the inductor as a whole (weight >35 kg without motor).

The need to create significant clamping effort is determined by the requirement of full tightness of the contact disks under pressure. Studies have shown that in this case Pto0,75 P.

These shortcomings are especially significant when using the throttle (prototype) in the system piping wells, frequent mounting and Dismounting, for example, cementing and pressure testing of wells.

Salamova plugs can lead to failure of the throttle and the whole system well control.

The present invention is to increase the reliability of the valve-throttle and reduce its size and weight by running a tap of the throttle flow and reduce the efforts of rotation of the rolling disk.

This is achieved in that the valve-choke, containing a hollow body, defined therein movable and fixed disks with oval channels and seals, tension spring, rotator with cover, oriented fixed to the body and is made in the form of a threaded centering sleeve with thrust collar and a circular groove and nuts; turning the controlling lever is hosted in kr is ispolnen of two coaxially arranged parts, connected by a rotator with the possibility of rotation so that the notch of the sleeve with a smaller diameter is located between one of the parts of the body and hinge-mounted movable spring-loaded disk, and the level of the sleeve with a larger diameter is located between the second body portion and the casing; a disk movably connected to the housing inner sleeves.

In Fig. 1 shows a longitudinal section of the valve-throttle, in Fig. 2 is a top view of Fig. 1.

The valve-choke consists of a hollow body made of two coaxially arranged parts 1 and 2, with the Central input 3 and output 4 channels connecting parts 1 and 2 of the rotator 5 6 fixed and mobile 7 ROM with oval channels 8, threaded centering sleeve with thrust collar 9, the nut 10, a pressure spring 11, the inner sleeves 12, movably connecting the disks 6 and 7, parts 1 and 2 of the rotary body control lever (13).

The rotator 5 is made in the form of a stepped sleeve, the step with a smaller diameter which is adjustably mounted in the bore of the housing and in her pivotally mounted spring-loaded by a spring 11 and a moveable disk 7.

And the level of the sleeve (rotator) with a large diameter movably located on the trunnion part 2 building the nut 10 and the rotator unloaded from axial loads, occurs when the pressure of the flow of the solution through the valve.

Parts 1 and 2 buildings oriented fixed relative to each other threaded centering sleeve 9 by means of pins 14 and 15.

Thanks rotator largely unloaded from possible lateral loads.

Turning the control lever 13 is connected to the rotator and is located in the circular groove (90 deg.) threaded centering sleeve 9, which defines the end position of the lever 13 and the rolling disk 7 (position open - closed).

Fixed disk 6 is installed and secured against rotation in the bore portion 2 of the casing by means of the balls 16.

Hinge installation on balls 16, spring-loaded by a spring 11 of the rolling disk 7 in the bore of the rotator 5 allows him to samoustraniajutsia on a fixed disk 6.

The disks 6 and 7 are in turn adjustably connected by means of sleeves 12 with parts 1 and 2 corps that provides the minimum clamping force on the disks from the differential pressure and therefore reducing the efforts of rotation of the rolling disk 7 under pressure.

To provide lubrication to bearing surfaces of the rotator 5 are provided to install the grease fitting 17.

Crane-crosseye pipeline manifold.

When working wireline fluid, drilling or cement slurry passes through the inlet channel 3 and through the channels 8 (combining them) in the disks 6 and 7 extends in the channel 4 output.

Rotation of the control lever 13 (using a steel rod or drive) through the rotator 5 is a mutual overlap (open) channels 8 disks and throttling solution. The rotation is carried out to establish the set pressure differential or until complete overlap (open) channels 8.

Drive rotator can be manual or remote from hydraulics or Pneumatics.

Under the action of differential pressure and the force of the spring 11, the disks 6 and 7 are pressed to each other with a force sufficient to prevent leakage of the joint disks (assuming their quality workmanship and a breakthrough solution to the outside (open space).

Thanks to this performance of valve-throttle by its straight-through design, eliminates zasilanie rotator and reduces the effort required to rotate the rotator and the rolling disk (4-5 times) under pressure, which enhances reliability and simplifies management.

It is well known that plug valves and known construction discoloration manual operation when the differential pressure 32 MPa.

The valve-choke, containing a hollow body, defined therein movable and fixed disks with oval channels and seals, tension spring, rotator, characterized in that it is provided with a casing, oriented fixed to the body and is made in the form of a threaded centering sleeve with thrust collar and a circular groove and the nut, turning the controlling lever is placed in the circular groove of the centering sleeve and connected to the rotator, made in the form of a stepped sleeve and the casing is made of two coaxial parts, connected by a rotator with the possibility of turning so that what stage of the sleeve with a smaller diameter is located between one of the parts of the body and pivotally mounted a movable spring-loaded disk, and the level of the sleeve with a larger diameter is located between the second portion of the shell and casing, wheels movably connected to the housing inner sleeves.

 

Same patents:
The invention relates to the oil industry and can find application for various types of influences on the formation during well operation and, in particular, with its perforations, killing, etc

Choke // 2140528
The invention relates to the oil industry, namely the structures governing the operation and development of oil and gas wells throttling of the fluid flow by changing the area of the passage

The invention relates to the oil and gas industry, in particular to the natural pressure of the gas, and can be used with gaslift wells

The invention relates to the oil and gas industry, in particular the killing of the gas or complicated breakthrough gas wells, and can also be used to eliminate emissions during well drilling and repairs

The invention relates to oil and gas extraction, drilling oil and gas wells, in particular liquids for perforating and plugging of wells

The invention relates to the oil and gas industry, as well as fire equipment and can be used in drilling wells with oil production and pipelines during operation and in the event of damage to the equipment for protection of wells and pipelines of any length

The invention relates to a device for the supply of artesian water in the main line of urban water systems

The invention relates to devices and mechanisms for exploitation of groundwater sources and intakes, particularly for pumping of artesian water in the main line of urban water systems

The invention relates to a device for the supply of artesian water in the main line of urban water systems

The invention relates to a hydrodynamic characteristics of the layer is carried out in the drilling of wells and in the fight against acquisitions of oil and gas

The invention relates to downhole equipment and can be used to seal the well in situations where there is no the blowout preventer and casing already lowered into the well

Reverse flush valve // 2081997

The flow switch // 2044869
The invention relates to the oil industry and can be used in measuring systems of liquid and gas, in verifying installations, instrumentation, where rapid change of flow direction

Switch fluid flow // 2015306
The invention relates to techniques for drilling deep wells and is designed to switch the flow of washing fluid in the lower part of the drill string on command from the surface

Well drilling rig // 2271435

FIELD: mining industry, particularly well drilling with direct or reverse circulation of mud, as well as well repair.

SUBSTANCE: rig comprises double pipe string with annular cavity defined in-between and jet device provided with check valve. The injection device is formed as body connected with inner pipe string. The body is provided with radial channels and annular nozzle set having receiving channels. The receiving channels are aligned with the radial channels to supply compressed air through annular nozzles in annular space at an angle to jet device axis.

EFFECT: increased pulp lifting capacity due to improved efficiency of pulp mixing with compressed air.

4 cl, 1 dwg

FIELD: mining.

SUBSTANCE: invention relates to drilling technique and can be used as a valve unit for screw-type downhole motors in a drilling pipe string for connection or disconnection of the internal cavity of drilling pipes and the annular space following the pre-set technological sequence. The valve contains a case, a valve pair provided with a sliding ring, the seat mounted in the case and a hollow plunger accommodated inside the seat, with radial holes in them, a spring mounted on the hollow plunger and gaskets. The valve pair is of the slide type, in which the diameter of the flowing channel is 0.10-0.12 of the length of the hollow plunger and the area of all radial overflow holes of the hollow plunger is equal to the area of flow channel in the cross-section of the hollow plunger. The hollow plunger is of cylindrical form with the sliding ring and the circular collar, located in the lower part of the sliding ring and spring-loaded up to the stop by the upper end of the circular collar to the lower end of the seat. Radial overflow holes of the hollow plunger and the radial holes in the seat and in the case are located at the same level and the spring is mounted between the case stop and the lower end of the circular collar of the hollow plunger.

EFFECT: high reliability of operation of the valve in the process of drilling, excluding spill of flush fluid during lifting the drilling pipe string and filling the internal cavity of pipes during dropping.

2 dwg

Up!