Logging-free umbrella type structure
By designing a leak-free umbrella structure including umbrella head connector, umbrella cloth, spring wire and spring steel sheet, the problem of large current leakage in the existing technology is solved, and the current collection effect without leakage in oil field production logging is achieved, ensuring the accuracy of the test data.
Patent Information
- Application Number
- CN202422198569.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-09-09
AI Technical Summary
The current collecting structures and methods of ball, metal umbrella and cloth umbrella in the existing oilfield production logging have large current collecting leakage, which cannot effectively meet the needs of the oilfield production logging site, especially in low-yield wells, which are difficult to measure.
A leak-free umbrella-type structure for well logging is designed, including umbrella head connector, umbrella cloth, spring wire and spring steel sheet. The umbrella cloth is opened under the sliding ring frame through dense spring wire, and the umbrella cloth is fully supported on the inner wall of the underground oil pipe to ensure that there is no leakage in the test.
The current collection effect without leakage in oilfield production logging is achieved, ensuring the authenticity and accuracy of the test output and water content data, and providing a reliable basis for later production increase measures.
Smart Images
Figure CN222949847U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of oilfield production logging, in particular to a non-leakage umbrella-type structure for logging. Background Art
[0002] Improving measurement accuracy is a difficult problem in oilfield downhole testing. The ball-type, metal umbrella-type and cloth umbrella-type flow collection structures and methods currently used in oilfield production logging have large flow collection losses and cannot effectively meet the needs of oilfield production logging sites, and low-yield wells cannot be measured. Utility Model Content
[0003] The technical problem to be solved by the utility model is that the ball-type, metal umbrella-type and cloth umbrella-type flow collecting structures and methods currently commonly used in oilfield production logging have large flow collection losses and cannot effectively meet the needs of oilfield production logging on-site, and low-yield wells cannot be measured.
[0004] In order to achieve the above functions, the technical solution adopted by the utility model is as follows: a non-leakage umbrella structure for well logging, including an umbrella head pipe, an umbrella cloth, a spring steel wire and a spring steel sheet, the spring steel wire is evenly inserted into the umbrella cloth, the bottom sliding sleeve of the umbrella head pipe is provided with an annular frame, the two ends of the spring steel wire and the spring steel sheet are respectively arranged on the top of the umbrella head pipe and the annular frame, the top of the umbrella cloth is tied to the top of the umbrella head pipe, the bottom of the umbrella cloth is tied to the annular frame, the top of the umbrella head pipe is provided with a plurality of liquid inlets, and the liquid inlets are located in the umbrella cloth.
[0005] Preferably, a plurality of notches are provided on the top of the umbrella head pipe, a positioning groove matching the notches is provided on the annular frame, two ends of the spring steel wire are respectively fixed between the notches and the positioning grooves, two ends of the spring steel sheet are respectively fixed between the notches and the positioning grooves, two ends of the spring steel sheet are respectively located on the outside of the notches and the positioning grooves, and the spring steel wire is located on the inside of the notches and the positioning grooves.
[0006] Preferably, the umbrella head pipe and the annular frame are both provided with fixed wire grooves, the fixed wire grooves on the umbrella head pipe are arranged between the bottom of the groove and the top of the liquid inlet, the umbrella cloth is resistant to high temperature and corrosion, a plurality of ribbons are provided at the bottom of the umbrella cloth, the bottom ends of the ribbons and the top ends of the umbrella cloth are both provided with straps, the straps are all tied in the fixed wire grooves, the umbrella cloth is provided with two groups of perforations arranged up and down, the spring steel wire is inserted from the upper perforations and passes through the lower perforations.
[0007] Preferably, the annular frame and the umbrella head pipe are both covered with steel sleeves, and the steel sleeves are wrapped around the two ends of the spring steel wire and the spring steel sheet.
[0008] Preferably, the annular frame is made of stainless steel.
[0009] Preferably, the notches and positioning grooves are each provided with 16 in number, and the spring steel sheets are arranged corresponding to the notches and positioning grooves.
[0010] Preferably, the number of the spring steel wires is 32 or 48, and the spring steel wires are evenly and densely distributed on the umbrella cloth.
[0011] The utility model adopts the above structure to achieve the following beneficial effects: the modified structure is extended into the well, and due to the densely distributed spring steel wires, the umbrella cloth is opened on the sliding ring frame, and the spring steel sheet is used to protect the cloth umbrella after the umbrella is closed from being scratched by the well wall. The umbrella cloth is fully stretched on the inner wall of the downhole oil pipe, so there is no leakage in the test, and all the oil, water and gas mixtures are fully collected from the liquid inlet to the channel of the umbrella head pipe. The test production and water content data are true and accurate, providing a reliable basis for later production increase measures.
[0012] The umbrella-shaped structure can be adjusted and unfolded according to different well diameters and well conditions to ensure a close fit with the well wall, thereby improving the accuracy and reliability of the test. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a disassembly diagram of an embodiment of the utility model;
[0014] Figure 2 This is a schematic diagram of the structure of an umbrella cloth according to an embodiment of the utility model;
[0015] Figure 3 It is a top view of the connection relationship between the umbrella head pipe, spring steel wire and spring steel sheet in an embodiment of the utility model.
[0016] Figure 4 This is a schematic diagram of the structure of the spring steel wire in an embodiment of the utility model;
[0017] Figure 5 This is a schematic structural diagram of a spring steel sheet according to an embodiment of the utility model.
[0018] Among them, 1. umbrella head pipe, 2. umbrella cloth, 3. spring steel wire, 4. spring steel sheet, 5. ring frame, 6. liquid inlet, 7. notch, 8. positioning groove, 9. fixed wire groove, 10. steel sleeve, 11. ribbon, 12. sleeve belt, 13. perforation. DETAILED DESCRIPTION
[0019] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. The present utility model is further described in detail below in conjunction with the accompanying drawings.
[0021] like Figure 1-5 As shown, the utility model proposes a non-loss umbrella structure for well logging, including an umbrella head pipe 1, an umbrella cloth 2, a spring steel wire 3 and a spring steel sheet 4, wherein the spring steel wire 3 is evenly inserted into the umbrella cloth 2, and the bottom sliding sleeve of the umbrella head pipe 1 is provided with an annular frame 5, and the annular frame 5 is made of stainless steel. Both ends of the spring steel wire 3 and the spring steel sheet 4 are respectively arranged on the top of the umbrella head pipe 1 and the annular frame 5, the top of the umbrella cloth 2 is tied to the top of the umbrella head pipe 1, and the bottom of the umbrella cloth 2 is tied to the annular frame 5. A plurality of liquid inlets 6 are provided on the top of the umbrella head pipe 1, and the liquid inlets 6 are located in the umbrella cloth 2. The spring steel sheet 4 is used to protect the cloth umbrella from being scratched by the well wall after the umbrella is folded. The modified structure is extended into the well. Due to the densely distributed spring steel wires 3, the umbrella cloth 2 is opened on the sliding annular frame 5. The umbrella cloth 2 is fully supported on the inner wall of the downhole oil pipe, so there is no leakage in the test. All the oil, water and gas mixtures flow from the liquid inlet 6 to the channel of the umbrella head pipe 1. The test production and water content data are true and accurate, providing a reliable basis for the later production increase measures.
[0022] like Figure 1 As shown, a plurality of notches 7 are provided on the top of the umbrella head pipe 1, and a positioning groove 8 matching the notch 7 is provided on the annular frame 5, and the two ends of the spring steel wire 3 are respectively fixed between the notch 7 and the positioning groove 8, and the two ends of the spring steel sheet 4 are respectively fixed between the notch 7 and the positioning groove 8, and the two ends of the spring steel sheet 4 are respectively located on the outside of the notch 7 and the positioning groove 8, and the spring steel wire 3 is located on the inside of the notch 7 and the positioning groove 8, and the annular frame 5 and the umbrella head pipe 1 are both covered with steel sleeves 10, and the steel sleeves 10 are wrapped around the two ends of the spring steel wire 3 and the spring steel sheet 4, and the spring steel wire 3 and the spring steel sheet 4 are fixed by the notch 7 and the positioning groove 8.
[0023] like Figure 2As shown, the umbrella head pipe 1 and the annular frame 5 are both provided with fixed wire grooves 9, the fixed wire grooves 9 on the umbrella head pipe 1 are arranged between the bottom of the notch 7 and the top of the liquid inlet 6, the umbrella cloth 2 is resistant to high temperature and corrosion, a plurality of ribbons 11 are provided at the bottom of the umbrella cloth 2, the bottom ends of the ribbons 11 and the top ends of the umbrella cloth 2 are both provided with straps 12, the straps 12 are all tied in the fixed wire grooves 9, the umbrella cloth 2 is provided with two groups of perforations 13 arranged up and down, the spring steel wire 3 is inserted from the upper perforations 13 and passes through the lower perforations 13, and the cloth umbrella is used to collect the oil-water-gas mixture to enter the liquid inlet 6.
[0024] like Figure 1 and 3 As shown, the notches 7 and the positioning grooves 8 are each provided with 16, the spring steel sheets 4 are arranged corresponding to the notches 7 and the positioning grooves 8, the spring steel wires 3 are provided with 32 or 48, the spring steel wires 3 are evenly and densely distributed on the umbrella cloth 2, and two or three spring steel wires 3 can be fixed in one notch 7 and positioning groove 8.
[0025] When in use, the structure is extended into the well. Due to the densely distributed spring steel wires 3, the umbrella cloth 2 is opened on the sliding ring frame 5, and the spring steel sheet 4 is used to protect the umbrella cloth from being scratched by the well wall after the umbrella is closed. The umbrella cloth 2 is fully extended on the inner wall of the downhole oil pipe, so there is no leakage in the test. All the oil, water and gas mixtures flow from the liquid inlet 6 to the channel of the umbrella head pipe 1. The test production and water content data are true and accurate, providing a reliable basis for the later production increase measures.
[0026] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A non-lost umbrella structure for well logging, characterized in that: It includes an umbrella head pipe, an umbrella cloth, a spring steel wire and a spring steel sheet. The spring steel wire is evenly inserted into the umbrella cloth. The bottom sliding sleeve of the umbrella head pipe is provided with an annular frame. The two ends of the spring steel wire and the spring steel sheet are respectively arranged on the top of the umbrella head pipe and the annular frame. The top of the umbrella cloth is tied to the top of the umbrella head pipe, and the bottom of the umbrella cloth is tied to the annular frame. The top of the umbrella head pipe is provided with a plurality of liquid inlets, and the liquid inlets are located in the umbrella cloth.
2. The non-loss umbrella structure for well logging according to claim 1, characterized in that: A plurality of notches are provided on the top of the umbrella head pipe, and a positioning groove matching the notches is provided on the annular frame. The two ends of the spring steel wire are respectively fixed between the notches and the positioning grooves, and the two ends of the spring steel sheet are respectively fixed between the notches and the positioning grooves. The two ends of the spring steel sheet are respectively located on the outside of the notches and the positioning grooves, and the spring steel wire is located on the inside of the notches and the positioning grooves.
3. The non-loss umbrella structure for well logging according to claim 1, characterized in that: The umbrella head pipe and the annular frame are both provided with fixed wire grooves, the fixed wire grooves on the umbrella head pipe are arranged between the bottom of the groove and the top of the liquid inlet, the umbrella cloth is resistant to high temperature and corrosion, a plurality of ribbons are provided at the bottom of the umbrella cloth, the bottom ends of the ribbons and the top ends of the umbrella cloth are both provided with straps, the straps are all tied in the fixed wire grooves, the umbrella cloth is provided with two groups of perforations arranged up and down, the spring steel wire is inserted from the upper perforations and passes through the lower perforations.
4. The non-loss umbrella structure for well logging according to claim 1, characterized in that: The annular frame and the umbrella head pipe are both covered with steel sleeves, and the steel sleeves are wrapped around the two ends of the spring steel wire and the spring steel sheet.
5. The non-loss umbrella structure for well logging according to claim 1, characterized in that: The annular frame is made of stainless steel.
6. The non-loss umbrella structure for well logging according to claim 2, characterized in that: The notches and positioning grooves are each provided with 16 in number, and the spring steel sheets are arranged corresponding to the notches and positioning grooves.
7. The non-loss umbrella structure for well logging according to claim 1, characterized in that: The spring steel wires are provided with 32 or 48 pieces, and the spring steel wires are evenly and densely distributed on the umbrella cloth.