CN111927418A

CN111927418A - New material and throwing type key sliding sleeve of structure thereof

Info

Publication number: CN111927418A
Application number: CN202010770786.0A
Authority: CN
Inventors: 席君杰; 庞德新; 李显义; 艾百布; 刘志良; 辛勇亮; 董德忠; 朱正喜; 魏设; 郭强; 李庆瑞; 王凯志
Original assignee: BEIJING GUANGMING RUBBER PRODU
Current assignee: BEIJING GUANGMING RUBBER PRODU
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2020-11-13
Anticipated expiration: 2040-08-04
Also published as: CN111927418B

Abstract

The invention provides a novel material and a throwing type key sliding sleeve with the structure, the structure mainly comprises a prefabricated sliding sleeve structure lock and a matched key thereof, the manufacturing material can adopt a high-strength metal composite high polymer material, the high polymer material (or an elastic high polymer material and a high-strength metal composite) is made into the key, the prefabricated sliding sleeve structure lock is made into transverse, longitudinal and corrugation (the corrugation is irregular corrugation such as arc, trapezoid, square and triangle) with the structure matched with the key by using high-strength metal or soluble high polymer metal composite material, the key is highly matched with the lock in a concave-convex manner, the prefabricated lock is opened, the prefabricated sliding sleeve starts to work, the key is not matched with the lock, the key deforms to reach the next prefabricated sliding sleeve through the prefabricated sliding sleeve lock until the prefabricated lock which is completely matched with the unlocking is reached, the appearance structure is simple, the volume is small, and the, the key and the lock are matched with each other to meet the working requirement.

Description

New material and throwing type key sliding sleeve of structure thereof

Technical Field

The invention relates to the field of petroleum and gas exploitation, and provides a novel material and a throwing type key sliding sleeve with the structure.

Background

With the increasingly prominent problems of thin reservoir, low pressure, low permeability, high water content, unbalanced storage and production and the like of the oil field in China at the middle and later stages of development, the oil layer of the thin and poor oil and gas field is dispersed, the interlayer span is disordered, and the common fracturing technology cannot meet the requirement of high-efficiency exploitation. In recent years, a fracturing bridge plug and a well cementation sliding sleeve fracturing process become core methods for solving the problem.

Disclosure of Invention

The invention provides a novel material and a throwing type key sliding sleeve with the structure, overcomes the defects of the prior art, and can solve the existing problems.

The sliding sleeve is composed of a throwing type key and a sliding sleeve structure lock, a plurality of throwing type keys or lassos can be arranged in the petroleum fracturing casing pipe, a bridge plug installation process is omitted, and the working efficiency is improved.

The key made of a high polymer material or rubber (or a high polymer material and a metal composite material) is matched with a prefabricated sliding sleeve structure lock (the structure lock is made of a high polymer or a high polymer and metal material composite or metal), the high strength of the shaping of the high polymer material and the high strength of the metal are utilized, the prefabricated key-throwing sliding sleeve structure lock with a large drift diameter is achieved, only one prefabricated sliding sleeve structure lock is opened for each key, the sliding sleeve can start to work, the key is made into different shapes such as longitudinal or transverse shapes, and the working device can be stabilized only when the key is completely matched with the structure lock.

The high polymer material and the metal are combined through vulcanization, gluing and connecting pieces, the structure is compact, the size is small, the operation is convenient, the lock and the key can be made of soluble materials and non-soluble materials, and the key can be made of high polymer soluble rubber materials.

The key and the lock can be added with composite materials on the surface, various stresses of the key and the lock can be eliminated, the lock and the key are completely combined, the polymer key or the polymer and metal composite material key are matched with the lock through certain pressure, the groove matching is achieved, after the key and the lock are completely matched, the sliding lock is opened, the sliding sleeve is displaced and locked, the process work is started, when the key and the lock are not completely matched, the key is deformed, and the key and the lock are slid to the lower section through the section under the pressure.

The key is made of rubber (polymer material or polymer material and metal composite material) into longitudinal shape, corrugated shape, rhombic shape, etc., the structural lock is made into the shape matched with the key, after the shape of each lock and the key are completely corresponded, the structural lock is opened, the sliding sleeve starts to work, and the soluble ball fracturing sliding sleeve is adopted.

Both the key and the sliding sleeve structural lock can be made of soluble materials or insoluble materials.

The key and the sliding sleeve structure lock can also adopt elastic materials or the sliding sleeve structure lock and the key adopt high polymer materials or high polymer and metal composite materials independently.

The structure lock made of high molecular material or high molecular and metal composite material can be sprayed, brushed and electroplated with a protective layer for long-term underground protection, and the protective layer is damaged by external force after the key is opened, so that the protective layer is hydrolyzed.

The longitudinal pattern and the transverse pattern of the rubber can pass through the slide sleeve structure lock without being opened under a certain pressure (0.5-5Mpa) without damaging the body of the structure lock, and when all the structures are inosculated, the lock is automatically opened.

The sliding sleeve slides and moves under the action of external force, and meanwhile, the composite metal in the sliding sleeve and the key is sealed with the sliding sleeve base, so that the pressure bearing of the sliding sleeve reaches 70 Mpa.

Drawings

FIG. 1 is a schematic view of a wave shaped sliding sleeve lock;

FIG. 2 is a schematic view of a wave key;

FIG. 3 is an anatomical view of FIG. 1;

FIG. 4 is a schematic view of a rectangular sliding sleeve lock;

FIG. 5 is a schematic view of a rectangular key;

FIG. 6 is the anatomical diagram of FIG. 4;

FIG. 7 is the anatomical diagram of FIG. 5;

FIG. 8 is a schematic view of a trapezoidal sliding sleeve lock;

FIG. 9 is a schematic view of a keystone key;

FIG. 10 is the anatomical diagram of FIG. 8;

FIG. 11 is the anatomical diagram of FIG. 9;

FIG. 12 is a schematic view of a quincunx sliding sleeve lock;

FIG. 13 is a schematic view of a plum blossom shaped key

FIG. 14 is the anatomical diagram of FIG. 12;

FIG. 15 is the anatomical diagram of FIG. 13;

Detailed Description

The terms or words used in the specification and claims should not be interpreted restrictively as conventional or dictionary meanings, but should be interpreted as meanings and concepts corresponding to technical ideas of the present invention on the basis of the principle that an inventor can appropriately define the concepts of the terms to describe his invention in the best possible manner.

Example 1

The sliding sleeve structure lock is made of high polymer materials or soluble metal materials, and a groove with transverse ripple grains is designed inside the drift diameter to be matched with a key, as shown in figures 1 and 3.

Example 2

The throwing type key is made of high polymer materials or soluble metal materials, and the shape of the throwing type key is the same as the internal texture of the sliding sleeve structure lock, so that the throwing type key can be matched with the sliding sleeve structure lock, as shown in figure 2.

Example 3

The inside of the lock drift diameter of the sliding sleeve structure can also be designed with a groove with rectangular texture, so that the groove can be matched with a key, as shown in figures 4 and 6.

Example 4

The throwing type key has the same shape as the inner texture of the sliding sleeve structure lock in the embodiment 3, so that the throwing type key can be matched with the sliding sleeve structure lock, as shown in figures 5 and 7.

Example 5

The inner part of the sliding sleeve structure lock drift diameter can also be designed with a groove with trapezoidal texture, so that the groove is matched with a key, as shown in figures 8 and 10.

Example 6

The key throwing type key has the same shape as the inner texture of the sliding sleeve structure lock of the embodiment 5, so that the key throwing type key can be matched with the sliding sleeve structure lock, as shown in fig. 9 and 11.

Example 7

The sliding structure lock and the key can also be made into a quincunx shape, as shown in figures 12-15.

The number of the grooves in the sliding sleeve structure lock and the key can be increased according to actual conditions, and the sliding sleeve structure lock and the key are not limited to the patterns shown in the embodiments.

In conclusion, the invention effectively realizes the comprehensive utilization of the steel slag, has simple process and high added value of products and has good industrialization prospect. The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a throw type key sliding sleeve of new material and structure which characterized in that: the key with high elasticity is made of a strong polymer material or a rubber polymer material and a metal composite material, is matched with the prefabricated sliding sleeve structure lock in a concave-convex mode (the structure lock material is made of metal or the polymer and the metal material in a composite mode), the high strength of the metal and the shaping of the polymer material are utilized, the prefabricated key-throwing sliding sleeve structure lock with a large drift diameter is achieved, and only one prefabricated sliding sleeve structure lock is opened for each key, so that the sliding sleeve can start to work. The key and the prefabricated sliding sleeve structure lock are made into matched concave-convex structures, structures with different shapes such as longitudinal or transverse and the like, and the key and the structure lock concave-convex structure are completely matched to unlock the prefabricated sliding sleeve lock, so that the working device is stable.

2. A throw-type key sliding bush of new material and structure according to claim 1, characterized in that: the high polymer material and the metal are combined through vulcanization, gluing and connecting pieces, the structure is compact, the size is small, the operation is convenient, the lock and the key can be made of soluble materials or insoluble materials, and the key can be made of the high polymer soluble rubber material and the metal.

3. A throw-type key sliding bush of new material and structure according to claim 1, characterized in that: the key and the lock can be added with composite materials on the surfaces, various stresses of the key and the lock can be eliminated, the concave-convex shapes of the lock and the key are completely combined, the polymer key or the polymer and metal composite material key are matched with the concave-convex characters of the lock through certain pressure, the groove matching is achieved, after the key and the lock are completely matched, the slide lock is opened, the slide sleeve is displaced and locked, the process work is started, when the key and the lock are not completely matched, the key is deformed, and the key and the lock pass through the section of the slide sleeve to the lower section under the pressure.

4. A throw-type key sliding bush of new material and structure according to claim 1, characterized in that: the key is made of rubber (polymer material or polymer material and metal composite material) in longitudinal direction, wave shape, circular shape, diamond shape and triangular shape, the structural lock is made into a shape matched with the key, after the shape of each lock and the key completely correspond to each other, the structural lock is opened, the sliding sleeve starts to work, and the soluble ball fracturing sliding sleeve is adopted.

5. A throw-type key sliding bush of new material and structure according to claim 1, characterized in that: both the key and the sliding sleeve structural lock can be made of soluble materials or non-soluble composite materials.

6. A throw-type key sliding bush of new material and structure according to claim 1, characterized in that: the key and the sliding sleeve structure lock can also be made of elastic materials or made of prefabricated sliding sleeve structure locks and the key is made of high polymer materials or polymer and metal composite materials.

7. A throw-type key sliding bush of new material and structure according to claim 1, characterized in that: the structure lock made of high molecular material or high molecular and metal composite material can be sprayed, brushed and electroplated with a protective layer for long-term underground protection, and the protective layer is damaged by external force after the key is opened, so that the protective layer is hydrolyzed.

8. A throw-type key sliding bush of new material and structure according to claim 1, characterized in that: the longitudinal pattern and the transverse pattern of the rubber can pass through the slide sleeve structure lock without being opened under a certain pressure (0.5-5Mpa) without damaging the body of the structure lock, and when all the structures are inosculated, the lock is automatically opened.

9. A throw-type key sliding bush of new material and structure according to claim 1, characterized in that: the sliding sleeve slides and moves under the action of external force, and meanwhile, the composite metal in the sliding sleeve and the key is sealed with the sliding sleeve base, so that the pressure bearing of the sliding sleeve reaches 70 Mpa.

10. A throw-type key sliding bush of new material and structure according to claim 1, characterized in that: the key and the prefabricated sliding sleeve structure lock can also be a metal key, and the prefabricated structure lock is made of high-elasticity polymer and metal composite materials.