CN205278784U - Platform heating measurement skid -mounted block - Google Patents

Abstract

A platform heating metering skid, including a metering incoming oil pipeline, a check valve, a metering heater, a separation metering device, a production heater, a valve, a bypass line of the separation metering device, a crude oil export mechanism, a production heater outlet pipeline, Closed discharge pump oil inlet pipeline, production oil inlet pipeline, production metering sewage pipeline, separation metering device venting pipeline; the check valve is fixed in the body through a union connection, when it is necessary to disassemble the check valve spool, Only by knocking the union nut, the check valve core can be disassembled quickly, and a new valve core can be replaced as a whole. The removal and installation process is convenient and quick. The utility model has the advantages of simple structure, convenient processing and use, low cost and long service life; it integrates production and measurement, not only improves the production diversion capacity, but also timely measures and analyzes parameters such as flow and pressure of the well.

Description

Platform heating metering skid

technical field

The utility model relates to production supporting facilities of an oil offshore platform, in particular to a platform heating metering skid.

Background technique

There is an existing production matching process on an offshore oil production platform, the structure of which is a split-type on-site assembly structure. The production process of the offshore platform with this connection structure has played a role in the supporting oil production process on the offshore platform, but it also has the following shortcomings or deficiencies: cumbersome assembly process, large assembly workload, inconvenient installation, and large amount of raw materials , the cost is high; in order to solve the above problems, the Chinese patent publication No. 203594443U discloses a platform heating metering skid, in which the check valve is an indispensable device, which can effectively prevent the liquid from flowing back. Commonly used check valves are swing type and lift type. Since the crude oil contains many kinds of impurities, the impurities will adhere to the inside of the check valve, causing the check valve to not work normally, and the check valve needs to be disassembled for inspection or cleaning. The existing check valve is easy to cause leakage, and the dismantling and installation process is complicated, resulting in heavy maintenance engineering workload.

Contents of the invention

The purpose of this utility model is to provide a platform heating metering skid for the above-mentioned defects in the prior art, which not only solves the problems existing in the supporting equipment of the original offshore oil production platform, but also solves the problem existing in the single part of the check valve.

The technical scheme of the utility model is: comprising a metering incoming oil pipeline, a check valve, a metering heater, a separation metering device, a production heater, a valve, a bypass line of a separation metering device, a crude oil transport mechanism, an outlet pipeline of a production heater, Closed discharge pump incoming oil pipeline, production incoming oil pipeline, production metering sewage pipeline, separation metering device venting pipeline, metering oil incoming pipeline through check valve, valve and metering heater, separation metering device, production electric heater, crude oil in sequence The external delivery mechanism, the outlet pipeline of the production heater, the oil pipeline of the closed discharge pump and the production pipeline are connected; the feature is that: the check valve includes a body, a valve seat and a valve core, and the inner cavity of the body is cylindrical , the valve seat is installed in the inner cavity of the body through steps and is pressed tightly by the gland; the gland and the body are relatively fixed through a union; one end of the valve seat in the axial direction is provided with a valve hole, and the other end is installed with a support Seat, the center of the support seat is provided with a sliding sleeve, and the periphery is provided with a plurality of through holes; the valve core includes a sealing head and a sliding rod connected to each other, the sealing head is in sealing fit with the valve hole, and the sliding The rod is installed in the sliding sleeve and forms a sliding fit with it; a return spring is arranged between the valve core and the support seat.

Wherein, the inlet and outlet of the separation and metering device are provided with a bypass pipeline for the separation and metering device; the production incoming oil pipeline is respectively connected with the production heater, the outlet pipeline of the production heater, the crude oil export mechanism and the separation and metering device; The oil inlet pipeline of the closed discharge pump is respectively connected with the production heater, the outlet pipeline of the production heater, the crude oil export mechanism and the separation metering device; The pipeline, the outlet pipeline of the production heater, the separation metering device and the crude oil export mechanism are connected; the production metering sewage pipeline is respectively connected with the metering heater, the separation metering device and the sewage outlet of the production heater; the separation metering device is emptied The line is connected to the top of the separation metering device.

Wherein, the support seat is installed in the valve seat through thread fit.

Wherein, the gland is installed outside the inner cavity of the body through steps, and the inner end surface of the gland is in contact with the outer end surface of the valve seat.

The beneficial effects of the utility model are:

1. Simple structure, convenient processing and use, low cost, and long service life; integrating production and measurement, not only improves production diversion capacity, but also timely measures and analyzes well parameters such as flow and pressure.

2. The spool is fixed in the check valve body through the union connection. When the check valve spool needs to be disassembled, the check valve spool can be disassembled quickly by tapping the union nut. Replacement of a new valve core solves the technical problem of complicated disassembly and installation process of the check valve in the existing structure, making the disassembly and installation process of the check valve convenient and quick.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of check valve;

In Fig. 1: metering incoming oil pipeline 1, check valve 2, metering heater 3, separation metering device 4, production heater 5, valve 6, separation metering device bypass pipeline 7, crude oil transport mechanism 8, production heater Outlet pipeline 9, closed discharge pump oil inlet pipeline 10, production oil inlet pipeline 11, production metering sewage pipeline 12, separation metering device venting pipeline 13;

In Fig. 2: 21-one-way valve body; 22-valve seat; 23-vulcanized rubber; 24-spool; 25-spring; 26-first O-ring; 27-support seat; 28-second O-ring; 29-union nut; 210-union circlip; 211-shaft circlip; 212-gland.

detailed description

In conjunction with accompanying drawing 1-2, the utility model is further described:

Referring to Fig. 1, the utility model includes a metering incoming oil pipeline 1, a check valve 2, a metering heater 3, a separation metering device 4, a production heater 5, a valve 6, a bypass line 7 of the separation metering device, and a crude oil export mechanism 8 , production heater outlet pipeline 9, closed discharge pump oil pipeline 10, production oil pipeline 11, production metering sewage pipeline 12, separation metering device venting pipeline 13, metering oil pipeline 1 through check valve 2, valve 6 in sequence It is connected with the metering heater 3, the separation metering device 4, the production electric heater 5, the crude oil export mechanism 8, the production heater outlet pipeline 9, the closed discharge pump oil pipeline 10 and the production oil pipeline 11, and the separation metering device 4 The inlet and outlet of the pump are provided with a bypass pipeline 7 of a separation and metering device, and the production incoming oil pipeline 11 is respectively connected with the production heater 5, the outlet pipeline 9 of the production heater, the crude oil export mechanism 8 and the separation and metering device 4, and the closed discharge pump comes The oil pipeline 10 is respectively connected with the production heater 5 , the production heater outlet pipeline 9 , the crude oil export mechanism 8 and the separation and metering device 4 . The production heater 5 is connected to the closed-discharge pump incoming oil pipeline 10, the production incoming oil pipeline 11, the production heater outlet pipeline 9, the separation metering device 4 and the crude oil export mechanism 8 through the valve 6, and the production metering sewage pipeline 12 is respectively connected to the metering The heater 3 , the separation and metering device 4 are connected to the blowdown outlet of the production heater 5 , and the discharge line 13 of the separation and metering device is connected to the top of the separation and metering device 4 .

Referring to FIG. 2 , the check valve 2 in FIG. 1 is composed of a body 21 , a valve seat 22 , a valve core 24 , a spring 25 , a support seat 27 , a gland 212 , and a union nut 29 . The inner cavity of the main body 21 is cylindrical, and the valve seat 22 is placed in the inner cavity of the main body. The first O-ring 26 is used to seal the gap between the valve seat 22 and the main body 21. The contact surface of the valve seat and the valve core 24 is overlaid with Ni60 The spool 24 is placed in the valve seat 22 cavity, the vulcanized rubber 23 on the sealing surface of the spool 24 is squeezed by the spring 25 to seal it with the valve seat 22, and the spring 25 is placed on the support seat 27; when the spool 24 is under pressure When greater than spring 25 extruding force, spring deforms, and fluid will pass through valve seat 22, support seat 27 and gland 212 successively; Through; the valve seat 22 is fixed in the body 21 with the gland 212, the second O-ring 28 is used to seal between the gland 212 and the body 21, and then the union nut 29 is pressed and fixed. When the check valve needs to be cleaned or the spool 24 needs to be replaced, the check valve can be disassembled by knocking the union nut 29.

The above are only preferred embodiments of the present utility model, and any person skilled in the art may use the above-mentioned technical solutions to modify the present utility model or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solution of the utility model belongs to the protection scope of the utility model.

Claims (4)

1. a platform adds heat death theory sled block, comprise metering and carry out oil pipeline, ball-and-seat, metering well heater, separate measurement device, produce well heater, valve, separate measurement device bypass line, crude oil exporting mechanism, produce heater outlet pipeline, the row's of closing pump carrys out oil pipeline, produce oil pipeline, the measure of production blowdown pipeline, separate measurement device blow-down pipe, metering carrys out oil pipeline and passes through ball-and-seat, valve in turn with metering well heater, separate measurement device, produce electric heater, crude oil exporting mechanism, produce heater outlet pipeline, the row's of closing pump carrys out oil pipeline, and oil pipeline is connected with producing, it is characterized in that: described ball-and-seat comprises body, valve seat and spool, described chamber body is cylinder shape, and described valve seat is arranged in chamber body by step cooperation and is compressed by gland, described gland is relative fixing by union with body, one end of described valve seat axis is provided with valve opening, the other end is installed and supported seat, and the central authorities of described support seat are provided with sliding cover, periphery is provided with multiple through hole, described spool comprises interconnective seal head and sliding bar, and described seal head and described valve opening are sealed and matched, and described sliding bar is arranged in sliding cover and is slidably matched with its formation, it is provided with return spring between described spool and support seat.

2. platform according to claim 1 adds heat death theory sled block, it is characterised in that: the import and export of described separate measurement device are provided with separate measurement device bypass line; Described production carrys out oil pipeline and is connected with separate measurement device with production well heater, production heater outlet pipeline, crude oil exporting mechanism respectively; The described row of closing pump carrys out oil pipeline and is connected with separate measurement device with production well heater, production heater outlet pipeline, crude oil exporting mechanism respectively; Described production well heater carrys out oil pipeline by valve and the row of closing pump, produces oil pipeline, produces heater outlet pipeline, separate measurement device is connected with crude oil exporting mechanism; Described the measure of production blowdown pipeline is connected with the sewage draining exit producing well heater with metering well heater, separate measurement device respectively; Described separate measurement device blow-down pipe is connected with the top of separate measurement device.

3. platform according to claim 1 and 2 adds heat death theory sled block, it is characterised in that: described support seat is arranged in valve seat by thread fit.

4. platform according to claim 3 adds heat death theory sled block, it is characterised in that: described gland is coordinated by step and is arranged on outside chamber body, and gland inner face and valve seat outer face against.