CN216110615U

CN216110615U - A retrieve probe rod for salvaging flow controller

Info

Publication number: CN216110615U
Application number: CN202022732834.5U
Authority: CN
Inventors: 陈鸿祥; 李翠
Original assignee: Langfang Paibolike Science And Trade Co ltd
Current assignee: Langfang Paibolike Science And Trade Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2022-03-22
Anticipated expiration: 2030-11-23

Abstract

A recovery probe rod for a salvaging choke comprises a body, wherein two ends of the body are respectively provided with a quick connector and a salvaging probe; the fishing probe is a convex structure which surrounds the circumferential periphery of the body and is outward in the radial direction; the surface of the fishing probe 3 is provided with a plurality of drainage grooves along the axial direction, and the drainage grooves are uniformly distributed on the fishing probe along the outer circumference of the fishing probe at equal intervals. The utility model solves the problems of complex structure and high manufacturing cost of the recovery probe rod in the prior art.

Description

A retrieve probe rod for salvaging flow controller

Technical Field

The utility model relates to the field of recovery devices, in particular to a recovery probe rod for a salvaging choke.

Background

A choke is an element in a hydraulic system that throttles fluid flow to create a pressure drop. Various throttles are used in different aspects of industrial construction, and play respective roles for the industrial construction.

In order to adapt to the development of each large oil field, the underground throttling technology is researched and developed as a new technology according to the well conditions of different geographical environments of different blocks of each oil field, so that the underground throttling device is diversified. Downhole chokes can be broadly divided into two main categories: movable type and stationary type. The movable underground throttler can be put into any well section position as required, and the setting position is adjustable, so that the movable underground throttler is particularly suitable for old wells needing throttling. The down-entering position of the fixed underground throttler is determined by the position of the underground working barrel, the pressure difference bearing capacity of the fixed underground throttler is high, the sealing effect is good, and the fixed underground throttler is suitable for being used in a new production well.

In the middle and later stages of gas field production, technological measures such as drainage, gas production and the like need to be carried out, so that the throttler needs to be fished out and generally adopts steel wire operation. However, in the process of exploiting the gas field, due to underground sand production, scaling, corrosion and the like, the problems of high difficulty in salvaging the underground throttler, low success rate and the like exist in part of wells. If the underground throttler cannot be fished in time, drainage and gas production measures such as foam drainage, speed pipe columns, plunger gas lift and the like cannot be implemented on part of the low-pressure water-producing gas well, so that the yield of the gas well is low or the well is stopped. The fishing probe rod in the prior art has the defects of high manufacturing cost and complex operation.

In view of the above, the present invention is particularly proposed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a recovery probe rod for a salvaging choke, which solves the problems of complex structure and high manufacturing cost of the recovery probe rod in the prior art.

In order to solve the problems, the utility model adopts the following technical scheme:

a recovery probe rod for a salvaging choke comprises a body, wherein two ends of the body are respectively provided with a quick connector and a salvaging probe; the fishing probe is a convex structure which surrounds the circumferential periphery of the body and is outward in the radial direction; the surface of the fishing probe 3 is provided with a plurality of drainage grooves along the axial direction, and the drainage grooves are uniformly distributed on the fishing probe along the outer circumference of the fishing probe at equal intervals.

Further, the quick connector is connected to the body through threads arranged on the body.

Further, the quick connector is connected with a mechanical jar of the fishing device.

Further, the number of the drainage grooves is 4.

Further, the outer diameter of the fishing probe 3 is larger than the inner diameter of the central pipe of the choke.

Further, the body is provided with a guide protrusion, and the guide protrusion is a protrusion structure which surrounds the circumferential periphery of the body and is radially outward.

Furthermore, the guide protrusion is provided with a drainage groove.

The recovery probe rod for the salvaging choke adopts a mode that a salvaging probe enters a central pipe of the choke through a mechanical jar and is embedded into the central pipe, so that the whole choke is salved out, and the salvaging probe rod is simple in structure and convenient to operate.

Drawings

FIG. 1 is a schematic diagram of the construction of a retrieval probe for a fishing choke of the present invention.

The symbols in the drawings illustrate that: 1. a main body; 2. a quick coupling; 3. fishing the probe; 4. a drainage groove; 5. a guide projection.

Detailed Description

The present invention will be described in detail with reference to the following preferred embodiments.

As shown in figure 1, the utility model discloses a recovery probe rod for a fishing choke, which comprises a body 1, wherein two ends of the body 1 are respectively provided with a quick connector 2 and a fishing probe 3.

The quick coupling 2 may be connected to the body 1 by a screw provided on the body 1, or may be integrally manufactured with the body 1.

The quick connector 2 can realize quick connection between the body 1 and a mechanical jar or a universal joint of the fishing device, so that the recovery probe rod can be quickly connected to the fishing device, and operation on a construction site is facilitated.

The fishing probe 3 is a radially outwardly projecting formation around the circumferential periphery of the body 1 for insertion into the central tube of the choke under the action of a mechanical jar. The two ends of the fishing probe 3 are respectively transited to the body 1 in the form of an inclined plane (45 degrees) or an arc, and then the fishing probe can play a role in transition when entering a central pipe of the choke.

The surface of the fishing probe 3 is provided with a drainage groove 4 along the axial direction. The number of the drainage grooves 4 is a plurality, preferably 3-5, more preferably 4, and the drainage grooves 4 are uniformly distributed on the fishing probe 3 along the outer circumference of the fishing probe 3 at equal intervals. Drainage groove 4 can be when fishing probe 3 enters into the center tube of flow controller, carries out the drainage to liquid and silt etc. wherein for liquid and silt etc. can be discharged from the center tube, prevent to prevent that fishing probe 3 from entering into in the center tube because liquid pressure is too big.

The outer diameter of the fishing probe 3 is about 40-42 mm, and the outer diameter of the fishing probe is slightly larger than the inner diameter of a central pipe of the restrictor, so that under the impact action of a mechanical jar, the fishing probe 3 can discharge liquid and silt in the central pipe, clean corrosion parts on the central pipe, enter the central pipe and are clamped in the central pipe, and further can take the restrictor out when the fishing probe rod is lifted.

The body 1 is also provided with a guide projection 5 which is a projection structure surrounding the circumference periphery of the body 1 and radially outward, and the outer diameter of the guide projection is smaller than the inner diameter of a well in which the restrictor is arranged, so that the guide projection can guide the recovery probe when the recovery probe is placed into the well. The guide protrusion 5 is also provided with a plurality of drainage grooves 4, the number of the drainage grooves 4 is preferably 3-5, and more preferably 4, and the drainage grooves 4 are uniformly distributed on the guide protrusion 5 along the outer circumference of the guide protrusion 5 at equal intervals, so that the drainage grooves can guide liquid in the well, reduce resistance, and facilitate the movement of the recovery probe rod in the well.

The number of the guide projections 5 may be plural, which are provided on the body 1 at a position close to the quick coupling 2. In the embodiment shown in fig. 1, two guide projections 5 are shown.

The process of using the recovery probe rod for fishing the choke of the utility model to salvage the choke comprises the following steps:

the 12:30 equipment moves to SN0107-02 well construction preparation and tool string connection.

12:35 well control equipment pressure test and leakage test are divided into three grades: (5MPa5 min, 10MPa10 min, maximum pressure 16MPa15 min).

13:05 depth gauge zeroing tool string into well (tool string from top to bottom: rope cap phi 1.875 "x 150mm + swivel joint phi 1.875" x 250mm + weighted rod phi 1.875 "x 2500mm + mechanical jar phi 1.875" x (opening 2160 mm/closing 1400mm) + light exploring rod x 830mm. total length of tool string 5890mm.)

13:45, firstly, descending a 56 mm-diameter optical probe rod, descending to 3730m, lifting up to measure the tension of 420kg, descending to a position of a sitting short section to encounter a blockage (NIP:3751.14m), downwards striking for 1 time by using a mechanical jar, lifting up to encounter a block, upwards striking for 6 times by using the mechanical jar to release the block, lifting up to measure the tension of 435kg, and lifting up a tool string to check that the optical probe rod is intact and slightly crevasses.

15:05 descending a 56mm light detecting rod for the second time, (the tool string is from top to bottom: rope cap phi 1.875 "× 150mm + rotary joint phi 1.875" × 250mm + weighting rod phi 1.875 "× 2400mm + universal joint phi 1.875" × 300mm + mechanical jar phi 1.875 "× (opening 2160 mm/closing 1400mm) + universal joint phi 1.875" × 300mm + light detecting rod phi 56mm × 830mm. the total length of the tool string is 6390mm.) descending 3730m, lifting up to measure tension 420kg, descending to a position of a landing nipple to meet resistance (NIP:3751.14m), descending 5 times using the mechanical jar, lifting up to meet the card after each descending, upwards hitting the mechanical jar for 3-4 times to release the card, lifting up to meet the card after the last descending, upwards hitting 12 times using the mechanical jar to release the card, lifting up to measure tension 435kg, lifting up to detect the tool string, and check the corrosion of the light detecting rod and the corrosion of the central pipe.

And (16: 40) recovering the well head and well site fences, and recycling the domestic and industrial wastes to leave the well site.

The inventive concept is explained in detail herein using specific examples, which are given only to aid in understanding the core concepts of the utility model. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are included in the scope of the present invention.

Claims

1. A recovery probe rod for a salvaging choke is characterized by comprising a body, wherein two ends of the body are respectively provided with a quick connector and a salvaging probe; the fishing probe is a convex structure which surrounds the circumferential periphery of the body and is outward in the radial direction; the surface of the fishing probe is provided with a plurality of drainage grooves along the axial direction, and the drainage grooves are uniformly distributed on the fishing probe along the outer circumference of the fishing probe at equal intervals.

2. The retrieval probe for a fishing choke of claim 1, wherein the quick connector is connected to the body by threads provided on the body.

3. The retrieval probe for a fishing choke of claim 2, wherein the quick connector is connected to a mechanical jar of a fishing device.

4. The retrieval probe for a fishing choke of claim 1, wherein the number of drainage slots is 4.

5. A retrieval probe for a fishing choke according to claim 1, wherein the fishing probe has an outer diameter greater than the inner diameter of the choke's central pipe.

6. A retrieval probe for a fishing choke according to claim 1, wherein the body is provided with a guide projection in the form of a radially outwardly projecting formation around the circumferential periphery of the body.

7. The recovery probe for a fishing choke of claim 6, wherein the guide projection is provided with a drainage groove.