Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of downhole instruments and hangers, applied in wellbore/well components, measurement, earthwork drilling and other directions, can solve problems such as unreliable locking method, damage to measuring instruments, damage to the inner wall of the tubing, etc. Reasonable design and easy operation
Pending Publication Date: 2020-01-31
大庆市博瑞吉机械设备制造有限公司
View PDF5 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
During the lifting and lowering process of the instrument support tube with the operation string, the measuring instrument is extremely vulnerable to damage caused by the operation impact, so the traditional storage data acquisition method can only be used for wells with shallow well depth and small well deviation; there is also a storage data acquisition method It is to fix the test instrument on the guide cone of the pipe string, but this fixing method can only be installed at the bottom end of the working pipe string
At present, the most commonly used is the slip type downhole instrument hanger, which is easy to move up and down when the liquid flows up and down, and the locking method is unreliable, the release lacks safety, and the slip hanger damages the inner wall of the tubing
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 more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0052] Referring to each figure, a two-way anchoring downhole instrument hanger, the hanger includes a hanger body, a throwing device for launching the hanger body and a fishing device for fishing the hanger body; the hanger body includes a fishing Rod 1, upper connecting rod seat 2, spring bushing 3, upper taper sleeve 4, lower taper sleeve 5, release sleeve 6, lower connecting rod 7, roller 8, connecting rod 9, lower connecting rod seat 10, suspension joint 11, Connecting rod spring 12, connecting rod screw 13, tapered sleeve spring 14, shear nail 15, anti-rotation sleeve 16 and limit screw 17; the release sleeve 6 is set on the end of the lower connecting rod 7, and is locked and fixed by the shear nail 15 , the lower connecting rod 7 at one end of the release sleeve 6 is set with a taper sleeve spring 14, and the other end of the release sleeve 6 is threadedly connected with the fishing rod 1, and is locked and fixed by a set screw; the upper taper sleeve 4 is sleeved with ...
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 belongs to the technical field of oilfield production equipment, and particularly relates to a bidirectional anchoring downhole instrument hanger. The hanger comprises a hanger body, a putting device for putting the hanger body and a salvaging device for salvaging the hanger body, wherein the hanger body comprises a salvaging rod, an upper connecting rod seat, a spring bushing, an upper taper sleeve, a lower taper sleeve, a release sleeve, a lower connecting rod, rolling wheels, a connecting rod, a lower connecting rod seat, a suspension joint, a connecting rod spring, a connecting rod screw, a taper sleeve spring, a shearing nail, an anti-rotating sleeve and a limiting screw; the putting device comprises a putting joint, an adjusting nut, an adjusting rod, a putting outer cylinder, a putting claw, a putting spring, an elastic cylindrical pin and an elastic pin; and the salvaging device comprises an upper joint, an outer cylinder, a protective sleeve, a connecting openingring, a release spring, a salvaging claw spring, a salvaging claw, a shaft, a protective cylinder, a fastening screw and a shearing pin. According to the hanger, a spherical self-locking type mode isadopted, and unlocking is safe and reliable; and an up-down bidirectional anchoring mode is adopted, and liquids in a well flow upwards, so that the hanger is prevented from moving up and down, and the safety and the reliability are achieved.
Description
Technical field: [0001] The invention belongs to the technical field of oilfield production equipment, and in particular relates to a two-way anchoring downhole instrument hanger. Background technique: [0002] Test instrument hangers are widely used in oilfield production, mainly for launching downhole instruments. In the process of oilfield production and development, downhole data of oil, gas and water wells need to be recorded regularly, and the storage data recording method is a relatively common measurement method. The storage data acquisition method is to place the measuring instrument inside the instrument holder, the instrument holder has a pressure transmission hole and is isolated from the production string, and the measuring instrument is not fixedly installed in the instrument holder. During the lifting and lowering process of the instrument support tube with the operation string, the measuring instrument is extremely vulnerable to damage caused by the operatio...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.