A supportive damping filling device
A filling device and damping technology, applied in drill pipe, casing, wellbore/well components, etc., can solve the problems of difficult processing, poor damping effect, large amount of activity, etc., and achieve scientific and reasonable structural design and major production practice. Meaning, good effect of spring return
Active Publication Date: 2021-10-08
DAGANG OIL FIELD GRP +1
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The device mainly has disadvantages: 1. The centering piece is designed in one piece, the structure is complex, the flow channel is small, eddy current is easy to be generated, and the processing is difficult; 2. The existing device lacks a positioning device, and the amount of movement in the construction process of the tool Too large and unstable; 3. The existing device adopts the design mode of single cup and single spring, the damping effect is not good, and the spring reset ability is poor; 4. The centralizer is a single design, and the centralizing effect is poor
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0038] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0039] see figure 1 , figure 2 , the present invention provides a vertical damping filling device, which is applied to extended-reach wells and horizontal wells in the development of oil and gas fields, and the device includes a center pipe 18;
[0040] The upper and lower ends of the central tube 18 are respectively equipped with an upper joint 1 and a lower joint 19;
[0041] The outer circle of the center pipe 18 is located between the upper joint 1 and the lower joint 19, and the upper righting ring 2, the upper positioning ring 5, the upper sliding sleeve 7, the upper spring 9, and the lower sliding sleeve 11 are installed in sequence from top to bottom , lower spring 13, lower positioning ring 14 and lower centralizing ring 16;
[...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a support type damping filling device, which comprises a central pipe (18); the upper and lower ends of the central pipe (18) are respectively equipped with an upper joint (1) and a lower joint (19); The outer circle is located between the upper joint (1) and the lower joint (19), and the upper centering ring (2), the upper positioning ring (5), the upper sliding sleeve (7), and the upper spring are installed sequentially from top to bottom. (9), lower sliding sleeve (11), lower spring (13), lower positioning ring (14) and lower centralizing ring (16). The vertical damping filling device disclosed in the present invention has a scientific and reasonable structural design, can effectively change the flow state of the sand-carrying liquid, prolong the flow distance of the liquid, and extend the construction length of gravel filling. It can be used not only in extended-reach wells, but also in horizontal wells. In the well, it has great practical significance in production.
Description
technical field [0001] The invention relates to the technical field of oil and gas field development, in particular to a supportive damping filling device. Background technique [0002] At present, for extended-reach wells and horizontal wells in the development of oil and gas fields, during the completion of horizontal wells or high-inclination gravel packing, due to the long horizontal section, the flow distance of sand-carrying fluid is limited, and long-distance packing cannot be performed. Operation. In this regard, the existing effective method to realize the gravel packing construction of the long section of the horizontal well is to change the flow state of the sand-carrying fluid and prolong the flow distance of the sand-carrying fluid through the damping packing device. [0003] However, for the existing damping filling device, there is an integrated design of the centralizing plate, complex structure, easy to generate eddy current, and difficult processing; at th...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/04E21B17/10
CPCE21B17/1078E21B43/04
Inventor 刘言理徐禄帆聂上振杨延征王立辉曾晓辉王晓梅袁照永陆辉张飙李娜张亚刚
Owner DAGANG OIL FIELD GRP