Submersible heating cable packer penetrating device
A technology for heating cables and packers, which is used in the production of fluids, drilling equipment, wellbore/well components, etc., can solve problems such as poor reliability and low sealing performance, and achieve lower production costs, improve production efficiency, and shorten operations. effect of time
Pending Publication Date: 2021-10-01
TIANJIN LIGHT IND VOCATION TECHN COLLEGE
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a submersible oil heating cable packer penetration device, which can solve the problems of low sealing performance and poor reliability of the heating cable penetration packer in existing heavy oil thermal recovery wells, and The device is compact in structure, easy to operate, and can realize fast crossing of the packer
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
[0020] The present invention will be further described in detail below through the specific examples, the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this.
[0021] see figure 1 , figure 2 , due to the limited space of the packer 2, the diameter of the passage hole reserved for the heating cable 4 is small, so the steel-free sheathed heating cable 1 is used below the packer to reduce its outer diameter and facilitate traversal; above the packer The heating cable 4 is of a conventional structure, and the heating cable 1 without a steel sheath is connected to the heating cable 4 inside the submersible heating cable packer crossing device 3 to realize energy transmission. The submersible heating cable packer traversing device 3 is connected with the packer 2 through threads.
[0022] see figure 2 , before the offshore operation starts, the heating cable 4 above the packer removes a section of t...
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 relates to a submersible heating cable packer penetrating device. The submersible heating cable packer penetrating device is characterized in that one end of a packer plug is connected with a packer, and the other end of the packer plug is provided with a groove for placing a sealing assembly and is in threaded connection with a sheath; a deep hole is formed in the variable-diameter large end of the sheath, and a teflon sealing gasket, a pressing sleeve and a split locking ring are sequentially arranged in the deep hole; the sheath is in threaded connection with the sheath plug; a heating cable without a steel sheath is connected with a cable connector in a crimping mode, and the heating cable is connected with a fastening cable connector in a crimping mode; the fastening cable connector after crimping and a butt joint copper pipe are connected through a fastening screw; and deep holes are formed in the two ends of the butt joint copper pipe correspondingly, grooves are formed in the deep holes, and crown springs are placed in the grooves. The submersible heating cable packer penetrating device is scientific and reasonable in design, the problems of low sealing performance and poor reliability of a heating cable penetrating packer in an existing heavy oil thermal production well can be solved, the submersible heating cable packer penetrating device is compact in structure and easy to operate, and rapid penetrating of the packer can be achieved.
Description
technical field [0001] The invention belongs to an offshore oilfield packer cable traversing device, and relates to a submersible oil heating cable packer traversing device. Background technique [0002] During the thermal recovery of heavy oil in offshore oilfields, the submersible oil heating cable is responsible for providing energy to the downhole heating device. When a packer is set downhole, the heating cable needs to pass through the packer. Due to the limited annular space and many downhole tools passing through the packer, the penetration device of the submersible heating cable packer must not only consider its function to meet the actual use requirements of offshore oil fields, but also put forward strict requirements on the shape of the penetration device . [0003] For production wells equipped with packers, there is no submersible oil heating cable crossing device with excellent sealing performance and high reliability. Contents of the invention [0004] 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 IPC IPC(8): E21B17/02E21B43/24
CPCE21B17/028E21B17/023E21B43/2401
Inventor 马绪鹏李超赵博闻秦琳
Owner TIANJIN LIGHT IND VOCATION TECHN COLLEGE