CN214576893U - Well cementing pry used under high-temperature and high-pressure working condition - Google Patents

Abstract

The utility model is suitable for a well cementation sled dress technical field provides a well cementation sled that is used for under high temperature high pressure operating mode, including mounting bracket and the sled dress system of setting on the mounting bracket, still include: the preheating module is arranged on the mounting frame and used for preheating the slurry output by the skid-mounted system; and arrange the material module, set up on the mounting bracket and with sled dress headtotail for remaining mud in the evacuation sled dress headtotail, the beneficial effects of the utility model are that: through the preheating module that sets up, can preheat the mud that is about to enter into in the pit, reduce the influence that the temperature caused to initial set, solidification and intensity of mud to when setting up the shut down, can be with the evacuation of remaining mud in the connecting tube, in order to avoid the pipeline jam problem's that the mud solidification leads to emergence.

Description

Well cementing pry used under high-temperature and high-pressure working condition

Technical Field

The utility model relates to a well cementation sled especially relates to a well cementation sled that is used for under high temperature high pressure operating mode.

Background

Well cementation is an essential link in the process of well drilling and completion operations, and comprises casing setting and cementing. The well cementation technology is a comprehensive application technology of multiple disciplines and has the characteristics of systematicness, disposability and short time. The primary purpose of cementing is to protect and support the casing in an oil and gas well, seal off oil, gas, and water formations, and to lower the casing into the well and inject cement into the annular space between the well and the casing, a construction operation known as cementing.

After the skid-mounted device in the prior art is shut down, slurry can be remained in a pipeline in the skid-mounted system, and if the shut-down time is long, the slurry can be solidified, so that the problem of pipeline blockage is caused.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a well cementation sled that is used for under high temperature high pressure operating mode aims at solving the technical problem that definite prior art exists in the background art.

The embodiment of the utility model provides a realize like this, a well cementation sled that is used for under high temperature high pressure operating mode, including mounting bracket and the sled dress system of setting on the mounting bracket, still include:

the preheating module is arranged on the mounting frame and used for preheating the slurry output by the skid-mounted system; and

and the discharging module is arranged on the mounting frame, is connected with the skid-mounted system and is used for emptying residual slurry in the skid-mounted system.

As a further aspect of the present invention: the skid-mounted system comprises a batching module, a mixing module, a pumping module and a spray pipe connected to the pumping module, wherein the batching module is used for proportioning raw materials, the mixing module is connected with the batching module and used for mixing the raw materials, the pumping module is used for pumping slurry, and the preheating module is connected between the batching module and the pumping module.

As a further aspect of the present invention: the preheating module includes:

the number of the preheating cavities is at least one, and a heat exchange medium which circularly flows is arranged in each preheating cavity;

the quantity is at least one heat exchange tube, sets up preheat the intracavity and be snakelike structure, the heat exchange tube is used for supplying mud and heat transfer medium to carry out the heat transfer.

As a further aspect of the present invention: the discharging module is arranged on a connecting pipe among the mixing module, the preheating module and the pumping module and used for emptying residual slurry in the connecting pipe among the mixing module, the preheating module and the pumping module.

As a further aspect of the present invention: the discharging module comprises:

the feeding cavity is arranged on the connecting pipe;

a rotary power member mounted on the feeding chamber;

the discharging pipe is connected to the feeding cavity, and an included angle between the discharging direction of the discharging pipe and the feeding direction of the feeding cavity is an obtuse angle; and

and the discharging part is arranged in the discharging pipe and is connected with the rotary power part.

Compared with the prior art, the beneficial effects of the utility model are that: through the preheating module that sets up, can preheat the mud that is about to enter into in the pit, reduce the influence that the temperature caused to initial set, solidification and intensity of mud to when setting up the shut down, can be with the evacuation of remaining mud in the connecting tube, in order to avoid the pipeline jam problem's that the mud solidification leads to emergence.

Drawings

FIG. 1 shows a cementing sled used under high-temperature and high-pressure conditions according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a preheating module according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a discharging module provided in an embodiment of the present application.

In the drawings: 2-control module, 3-mounting frame, 4-batching module, 5-mixing module, 6-preheating module, 601-preheating shell, 602-oil inlet pipe, 603-material inlet pipe, 604-oil outlet pipe, 605-material outlet pipe, 606-heat exchange pipe, 7-discharging module, 701-material feeding cavity, 702-mounting block, 703-motor, 704-material discharging pipe, 705-helical blade, 8-pumping module, 9-angle adjusting frame and 10-spray pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following detailed description is provided for the specific embodiments of the present invention.

As shown in FIG. 1, for a well cementation sled's that an embodiment of this application provided structure diagram under for the high temperature high pressure operating mode, including mounting bracket 3 and the sled dress system of setting on mounting bracket 3, still include:

the preheating module 6 is arranged on the mounting frame 3 and used for preheating the slurry output by the skid-mounted system; and

and the discharging module 7 is arranged on the mounting frame 3, is connected with the skid-mounted system and is used for emptying residual slurry in the skid-mounted system.

The mounting frame 3 referred to in the embodiments of the present application is actually a mounting carrier for the skid-mounted system and other components. Preheating module 6 in the embodiment of this application can preheat the mud of sled dress system output because when external temperature is lower, can influence the initial set of mud, solidification and intensity etc. and under general condition, the temperature all is higher relatively in the pit, but ground temperature is lower, and preheating module 6's real purpose is just preheating the mud that will enter into the pit, reduces the influence that the temperature caused initial set, solidification and intensity to mud.

In the embodiment of the application, after the use of the slurry is completed, the slurry is remained in the pipeline in the skid-mounted system, and the discharging module 7 can empty the remained slurry to avoid the problem of pipeline blockage caused by slurry solidification.

As shown in fig. 1, as a preferred embodiment of the present application, the skid-mounted system includes a control module 2, a batching module 4, a blending module 5, a pumping module 8, and a nozzle 10 connected to the pumping module 8, wherein the batching module 4 is used for proportioning raw materials, the blending module 5 is connected to the batching module 4 for mixing raw materials, the pumping module 8 is used for pumping slurry, and the preheating module 6 is connected between the blending module 5 and the pumping module 8.

In this application embodiment, batching module 4 is small-size batching station in essence, and the primary action lies in carrying out the proportion to the raw materials and controls, does not indicate its pipeline, proportional valve etc. that specifically has in this application embodiment, and compounding module 5 is the blending tank in fact, lies in stirring the mixture to the raw materials, and pumping module 8 can be plunger pump etc. and this embodiment also does not carry out specific restriction here.

In practical application, the batching module 4 sends the raw materials prepared in proportion into the mixing module 5, mixing and stirring are completed in the mixing module 5, then the raw materials enter the pumping module 8 after being preheated by the preheating module 6, and slurry is output by the pumping module 8. Preferably, in this embodiment, the nozzle 10 is mounted on the pumping module 8 through an angle adjusting bracket 9, and the angle adjusting bracket 9 is used for adjusting the angle of the nozzle 10.

As another preferred embodiment of the present application, as shown in fig. 2, the preheating module 6 includes:

the number of the preheating cavities is at least one, and a heat exchange medium which circularly flows is arranged in each preheating cavity;

the number of the heat exchange tubes 606 is at least one, the heat exchange tubes are arranged in the preheating cavity and are of a serpentine structure, and the heat exchange tubes 606 are used for allowing mud to exchange heat with heat exchange media.

In the embodiment of the application, the preheating cavity is a cavity arranged in the preheating shell 601, an oil inlet pipe 602 and an oil outlet pipe 604 are connected to the preheating shell 601, preferably, the oil inlet pipe 602 and the oil outlet pipe 604 are connected to a heating oil tank to form the circulation flow of heat conducting oil, two ends of a heat exchange pipe 606 are respectively connected to a feed pipe 603 and a discharge pipe 605, wherein the feed pipe 603 is connected to the mixing module 5, and the discharge pipe 605 is connected to the pumping module 8.

In practical application, the mixed and stirred slurry enters the heat exchange tube 606 of the preheating cavity through the feeding tube 603, exchanges heat with the heat exchange medium circularly flowing in the preheating cavity, is output to the pumping module 8 through the discharging tube 605, and is sprayed out through the spraying tube 10.

As another preferred embodiment of the present application, as shown in fig. 3, the discharge module 7 is disposed on the connection pipe between the mixing module 5, the preheating module 6 and the pumping module 8 for emptying the slurry remaining in the connection pipe between the mixing module 5, the preheating module 6 and the pumping module 8. Preferably, the discharge module 7 may also be disposed at other positions where slurry residue may occur, and the embodiment is not particularly limited herein.

In particular, the discharge module 7 comprises:

a feeding cavity 701 arranged on the connecting pipe;

a rotary power member mounted on the feeding chamber 701;

a discharge pipe 704 connected to the feeding cavity 701, wherein an included angle between a discharge direction of the discharge pipe 704 and a feeding direction of the feeding cavity 701 is an obtuse angle; and

and the discharging part is arranged in the discharging pipe 704 and is connected with the rotary power part.

In one aspect of the embodiment of the present application, the rotating power component is an electric motor 703, which may be a hydraulic motor, and the electric motor 703 is mounted on the feeding cavity 701 through a mounting block 702, and the discharging component may be a helical blade 705 (with or without a shaft).

Under a normal working mode, slurry enters the pumping module 8 through the feeding cavity 701, when the machine is stopped, slurry is remained in a connecting pipe between the mixing module 5, the preheating module 6 and the pumping module 8, at the moment, the spiral blade 705 starts to rotate by controlling the power output of the rotary power part (namely the motor 703), the slurry in the feeding cavity 701 is discharged outwards, and the slurry at other positions also flows back to the feeding cavity 701 to be discharged. Preferably, the discharge conduit 704 is provided with a valve which is normally closed during normal operation and which is opened again when the slurry is being emptied.

The above-mentioned embodiment of this application provides a well cementation sled for under high temperature high pressure operating mode, through the preheating module that sets up, can preheat the mud that is about to enter into in the pit, reduces the influence that the initial set, solidification and the intensity of temperature to mud caused to when setting up the shut down, can be with the evacuation of remaining mud in the connecting tube, in order to avoid the pipeline that the mud solidification leads to block up the emergence of problem.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (5)

1. The utility model provides a well cementation sled for under high temperature high pressure operating mode, includes the mounting bracket and sets up the sled dress system on the mounting bracket, its characterized in that still includes:

the preheating module is arranged on the mounting frame and used for preheating the slurry output by the skid-mounted system; and

and the discharging module is arranged on the mounting frame, is connected with the skid-mounted system and is used for emptying residual slurry in the skid-mounted system.

2. A cementing skid for use under high temperature and high pressure conditions as set forth in claim 1, wherein said skid-mounted system comprises a batching module for proportioning raw materials, a blending module connected to said batching module for blending the raw materials, a pumping module for pumping slurry, and a preheating module connected between the blending module and the pumping module, and a nozzle connected to said pumping module.

3. The cementing sled of claim 2, wherein the preheating module comprises:

the number of the preheating cavities is at least one, and a heat exchange medium which circularly flows is arranged in each preheating cavity;

the quantity is at least one heat exchange tube, sets up preheat the intracavity and be snakelike structure, the heat exchange tube is used for supplying mud and heat transfer medium to carry out the heat transfer.

4. The cementing sled used under the working conditions of high temperature and high pressure according to claim 2, wherein the discharging module is arranged on a connecting pipe among the mixing module, the preheating module and the pumping module and used for emptying residual slurry in the connecting pipe among the mixing module, the preheating module and the pumping module.

5. A cementing skid for use under high temperature and high pressure conditions according to claim 4, wherein said discharge module comprises:

the feeding cavity is arranged on the connecting pipe;

a rotary power member mounted on the feeding chamber;

the discharging pipe is connected to the feeding cavity, and an included angle between the discharging direction of the discharging pipe and the feeding direction of the feeding cavity is an obtuse angle; and

and the discharging part is arranged in the discharging pipe and is connected with the rotary power part.

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