Well logging winch calibration tool
By designing a well logging winch calibration tool, and utilizing an isosceles triangle structure and laser lights or auxiliary calibration points, precise alignment of the winch drum and the ground pulley was achieved, solving the problem of winch drum alignment in offshore oil and gas exploration and improving the safety and accuracy of well logging operations.
Patent Information
- Application Number
- CN202422664299.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-11-01
AI Technical Summary
In offshore oil and gas exploration, aligning the logging winch drum with the pulley is difficult, making it hard to neatly coil the cable, which increases the safety risks and operational complexity of hoisting operations.
Design a well logging winch calibration tool, which includes a calibration ruler, calipers and a waist ruler forming an isosceles triangle, equipped with a laser light or auxiliary calibration points, and achieves precise alignment of the winch drum and the ground pulley by indicating the center line through the calibration components.
This improved the alignment accuracy between the winch drum and the pulley, reduced measurement errors, and lowered operational complexity and safety risks.
Smart Images
Figure CN223580907U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of well logging technology, and in particular to a well logging winch calibration tool. Background Technology
[0002] like Figure 1 As shown, in the field of offshore oil and gas exploration, an offshore platform 8 is typically set up on the sea surface. A wellhead is located on the offshore platform 8, and a derrick 7 is mounted on the offshore platform 8 and positioned above the wellhead. The derrick 7 is equipped with a ground pulley and a top pulley. The ground pulley is usually installed on the lower part of the derrick 7 near the wellhead, and its main function is to change the direction of the logging cable. The top pulley is installed on the upper part of the derrick 7 and corresponds to the wellhead. The offshore platform 8 also has an adjustable logging skid for carrying the logging winch and other related equipment. The logging winch is equipped with a winch drum 6 for winding and releasing the logging cable. During logging, the cable is horizontally led out from the winch drum 6, passes through the ground pulley, changes direction from horizontal to upward, then passes through the top pulley and changes direction to downward, finally entering the well from the wellhead. To ensure the safe raising and lowering of the logging cable, the winch drum 6 must be directly opposite the ground pulley on the derrick 7.
[0003] With the continuous expansion of offshore oil and gas exploration and development, the design and engineering requirements of offshore platforms are becoming increasingly complex. On offshore platforms, the installation and placement of logging skids vary depending on the platform structure and operational needs. Particularly on platforms with limited space, the accuracy and safety of logging operations face challenges. In practice, due to space constraints and the complexity of equipment placement, aligning the winch drum 6 with the pulley becomes extremely difficult, often requiring repeated adjustments to the position and direction of the logging skid. This is not only time-consuming and labor-intensive but also increases the safety risks of hoisting operations. On some platforms, due to space and structural limitations, the distance between the logging skid and the pulley is very close. If the winch drum 6 and the pulley are not aligned horizontally, it can easily lead to difficulties in neatly winding the cable around the winch drum 6 during subsequent logging operations, potentially resulting in an accident where the downhole cable cannot be completely retrieved. Therefore, ensuring the rapid and safe precise alignment of the winch drum 6 with the pulley is particularly important for engineering safety. Utility Model Content
[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by this utility model is to provide a logging winch calibration tool that can achieve precise alignment between the logging winch drum and the ground pulley.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] The utility model provides a logging winch calibration tool, including calibrating ruler, caliper, first waist ruler and second waist ruler, the length of first waist ruler and second waist ruler is equal, the first end and last of caliper, first waist ruler and second waist ruler are connected and constitute an isosceles triangle, the one end of calibrating ruler is connected with the vertex of isosceles triangle, and calibrating ruler is perpendicular to caliper, calibrating ruler has the center line parallel with the length direction of calibrating ruler, and the calibration assembly for indicating the straight line of center line is equipped on calibrating ruler.
[0007] Preferably, the calibration assembly comprises a laser lamp, and the light beam emitted by the laser lamp coincides with the center line.
[0008] Preferably, the laser lamp is detachably arranged on the calibrating ruler.
[0009] Preferably, the calibration assembly comprises at least two auxiliary calibration points arranged at intervals, and all the auxiliary calibration points are located on the center line.
[0010] Preferably, the auxiliary calibration point is a protrusion protruding from the outer surface of the calibrating ruler.
[0011] Preferably, one end of the calibrating ruler is hingedly connected with the vertex of the isosceles triangle, and the other end is a free end.
[0012] Preferably, the caliper, the first waist ruler and the second waist ruler are hingedly connected with each other, and the length of the caliper can be adjusted.
[0013] Preferably, the caliper comprises a first caliper and a second caliper, one end of the first caliper is hingedly connected with the first waist ruler, and the other end is recessed to form a recess, one end of the second caliper is hingedly connected with the second waist ruler, and the other end is slidably arranged in the recess, and the first caliper and the second caliper are locked and fixed by a locking member.
[0014] Preferably, the first caliper is provided with a locking hole in communication with the recess, the locking hole is provided with an internal thread, the locking member is provided with an external thread, and the locking member is connected with the internal thread of the locking hole through the external thread and abuts against the second caliper.
[0015] Preferably, the utility model further comprises a first baffle and a second baffle, the first baffle and the second baffle are respectively connected to the two ends of the caliper and are perpendicular to the caliper.
[0016] Compared with the prior art, the utility model has the following advantages:
[0017] The utility model discloses a well logging winch calibration tool, caliper, first waist ruler and second waist ruler first and last link around constitute the isosceles triangle, and one end of the calibration ruler is connected with the vertex of the isosceles triangle, when using, the both ends of caliper are pressed tightly on the inner side wall surface of the both sides disc of winch drum, make the axis of caliper and winch drum parallel, and the center line of calibration ruler points to the derrick on the offshore platform, then the midpoint of caliper corresponds with the center position of winch drum. When the calibration ruler is perpendicular to the caliper, the center line of calibration ruler intersects with the midpoint of caliper, therefore the straight line of the center line of calibration ruler is perpendicular to the axis of winch drum and passes through the center position of winch drum. The calibration assembly on calibration ruler can indicate the straight line of the center line of calibration ruler, therefore, through observing the extension direction of the straight line indicated by calibration assembly, installs the ground pulley on the position corresponding with the derrick in the extension direction of straight line, or moves well logging winch, makes the extension direction of straight line correspond with the ground pulley on the derrick, thereby realizes the accurate alignment of the center position of winch drum and ground pulley, helps to reduce error and improve accuracy. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is the position relation schematic diagram of winch drum and derrick in prior art.
[0019] Figure 2 It is the position relation schematic diagram of well logging winch calibration tool, winch drum and derrick of the utility model embodiment.
[0020] Figure 3 It is the overall structure schematic diagram of well logging winch calibration tool of the utility model embodiment under use state.
[0021] Figure 4 It is Figure 3 The sectional view schematic diagram along A-A direction.
[0022] Among them, the following is explained to the reference signs:
[0023] 1 calibration ruler
[0024] 1a center line
[0025] 10 laser lamp
[0026] 20 auxiliary calibration point
[0027] 3 caliper
[0028] 31 first caliper
[0029] 31a cavity
[0030] 31b locking hole
[0031] 32 second caliper
[0032] 40 first waist ruler
[0033] 41 Second waist ruler
[0034] 50 First baffle
[0035] 51 Second baffle
[0036] 6. Winch drum
[0037] 7. Derrick
[0038] 8. Offshore Platforms
[0039] 9 Locking components Detailed Implementation
[0040] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate this utility model and are not intended to limit it.
[0041] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0043] Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0044] like Figures 2 to 4 The image shows one embodiment of the well logging winch calibration tool of this utility model.
[0045] See Figure 2 and Figure 3The logging winch calibration tool of the embodiment comprises a calibration ruler 1, a caliper 3, a first waist ruler 40 and a second waist ruler 41, the lengths of the first waist ruler 40 and the second waist ruler 41 are equal, the caliper 3, the first waist ruler 40 and the second waist ruler 41 are connected end to end to form an isosceles triangle, the caliper 3 is the base of the isosceles triangle, the first waist ruler 40 and the second waist ruler 41 are the two legs of the isosceles triangle, and the connecting point of the first waist ruler 40 and the second waist ruler 41 is the vertex of the isosceles triangle. The triangular structure is stable, which helps to ensure the stability of the calibration tool during the measurement process and reduce the measurement error caused by the movement or shaking of the calibration tool.
[0046] One end of the calibration ruler 1 is connected to the vertex of the isosceles triangle, and the calibration ruler 1 is perpendicular to the caliper 3, and the calibration ruler 1 has a center line 1a parallel to the length direction of the calibration ruler 1. Since the lengths of the first waist ruler 40 and the second waist ruler 41 are equal, when the calibration ruler 1 is perpendicular to the caliper 3, the center line 1a of the calibration ruler 1 intersects the midpoint of the caliper 3.
[0047] The calibration ruler 1 is provided with a calibration assembly for indicating the straight line where the center line 1a is located. When in use, the operator can determine the direction in which the center line 1a of the calibration ruler 1 points by observing the extension direction of the straight line indicated by the calibration assembly.
[0048] Therefore, when the logging winch calibration tool of the embodiment is in use, the two ends of the caliper 3 are abutted against the inner side wall surfaces of the two side discs of the winch drum 6, the caliper 3 is parallel to the axis of the winch drum 6, and the center line 1a of the calibration ruler 1 points to the derrick 7 on the offshore platform 8, then the midpoint of the caliper 3 corresponds to the center position of the winch drum 6, when the calibration ruler 1 is perpendicular to the caliper 3, the center line 1a of the calibration ruler 1 intersects the midpoint of the caliper 3, thus the straight line where the center line 1a of the calibration ruler 1 is located is perpendicular to the axis of the winch drum 6 and passes through the center position of the winch drum 6, and the calibration assembly on the calibration ruler 1 can indicate the straight line where the center line 1a of the calibration ruler 1 is located, therefore, by observing the extension direction of the straight line indicated by the calibration assembly, the ground pulley is installed at the position corresponding to the derrick 7 in the extension direction of the straight line, or the logging winch is moved so that the extension direction of the straight line corresponds to the ground pulley on the derrick 7, so as to realize the accurate alignment of the center position of the winch drum 6 and the ground pulley, which helps to reduce the error and improve the accuracy.
[0049] In the embodiment, preferably, the calibration assembly can comprise a laser lamp 10, and a light beam emitted by the laser lamp 10 coincides with the center line 1a of the calibration ruler 1. The laser lamp 10 is preferably arranged on the center line 1a of the calibration ruler 1, so that the light beam emitted by the laser lamp 10 coincides with the center line 1a. The light beam emitted by the laser lamp 10 can be visible light, laser or other forms of indicating light, and by observing the extending direction of the light beam, the operator can intuitively determine the extending direction of the straight line where the center line 1a of the calibration ruler 1 is located. Since the center line 1a of the calibration ruler 1 intersects the center position of the winch drum 6, the center position of the winch drum 6 and the ground pulley can be confirmed to be located on the same straight line through the straight line where the center line 1a of the calibration ruler 1 is located, and then the center position of the winch drum 6 is opposite to the ground pulley on the derrick 7. Preferably, the laser lamp 10 is detachably arranged on the calibration ruler 1, and when the laser lamp 10 is out of power or damaged to cause abnormal work, the laser lamp 10 can be detached to charge or replace the laser lamp 10 capable of normal work.
[0050] In the embodiment, preferably, the calibration assembly can also comprise at least two auxiliary calibration points 20 arranged at intervals, and all the auxiliary calibration points 20 are located on the center line 1a of the calibration ruler 1. Preferably, the auxiliary calibration points 20 are protrusions protruding from the outer surface of the calibration ruler 1. When in use, the operator aligns the line connecting the line of sight and the auxiliary calibration point 20, and then can observe the extending direction of the straight line where the center line 1a of the calibration ruler 1 is located. Since the center line 1a of the calibration ruler 1 intersects the center position of the winch drum 6, the center position of the winch drum 6 and the ground pulley can be confirmed to be located on the same straight line through the straight line where the center line 1a of the calibration ruler 1 is located, and then the center position of the winch drum 6 is opposite to the ground pulley on the derrick 7.
[0051] In the embodiment, specifically, the calibration assembly comprises the laser lamp 10 and the auxiliary calibration points 20, and the laser lamp 10 and the auxiliary calibration points 20 are arranged on the same outer surface of the calibration ruler 1 and are located on the center line 1a of the calibration ruler 1. The laser lamp 10 is preferably arranged at a position between the auxiliary calibration points 20. The protrusion height of the auxiliary calibration points 20 is lower than the height of the light emitting point on the laser lamp 10, so as to avoid the auxiliary calibration points 20 from shielding the light beam emitted by the laser lamp 10. When the laser lamp 10 can work normally, the operator only needs to confirm the extending direction of the straight line where the center line 1a of the calibration ruler 1 is located through the light beam emitted by the laser lamp 10. When the laser lamp 10 is damaged or out of power to cause abnormal work, the laser lamp 10 is detached to prevent the laser lamp 10 from shielding the line of sight of the operator, and at this time, the operator can confirm the extending direction of the straight line where the center line 1a of the calibration ruler 1 is located through the auxiliary calibration points 20.
[0052] In the embodiment, preferably, one end of the caliper ruler 1 is hingedly connected to the vertex of the isosceles triangle formed by the caliper ruler 3, the first waist ruler 40 and the second waist ruler 41, and the other end of the caliper ruler 1 is a free end. Thus, the caliper ruler 1 can rotate around the vertex of the isosceles triangle, and the operator can rotate the caliper ruler 1 to a position perpendicular to the caliper ruler 3 according to the need of measurement and calibration. Further, the caliper ruler 1 and the caliper ruler 3 are both provided as rectangular rods, and the outer surfaces of the rectangular rods are flat surfaces. When the caliper ruler 1 and the caliper ruler 3 intersect, the included angle formed by the outer surfaces of the intersecting caliper ruler 1 and the caliper ruler 3 can enable the operator to more intuitively determine the intersecting angle of the caliper ruler 1 and the caliper ruler 3. Thus, by adjusting the included angle formed by the outer surfaces of the intersecting caliper ruler 1 and the caliper ruler 3 to 90°, the caliper ruler 1 can be made perpendicular to the caliper ruler 3. In actual use, if the operator determines the intersecting angle of the caliper ruler 1 and the caliper ruler 3 only by visual observation, a small error is allowed. By adjusting the included angle formed by the outer surfaces of the intersecting caliper ruler 1 and the caliper ruler 3 to about 90°, the caliper ruler 1 can be made approximately perpendicular to the caliper ruler 3.
[0053] In the embodiment, preferably, the caliper ruler 3, the first waist ruler 40 and the second waist ruler 41 are all hingedly connected to each other, and the length of the caliper ruler 3 can be adjusted. Thus, the three included angles of the isosceles triangle formed by the caliper ruler 3, the first waist ruler 40 and the second waist ruler 41 can all be adjusted, and the first waist ruler 40 and the second waist ruler 41 will not hinder the length adjustment of the caliper ruler 3. By adjusting the length of the caliper ruler 3, the logging winch calibration tool of the embodiment can be adapted to winch drums 6 with different distances between the two side discs.
[0054] Referring to Figure 3 and Figure 4 , in the embodiment, preferably, the caliper ruler 3 includes a first caliper ruler 31 and a second caliper ruler 32. One end of the first caliper ruler 31 is hingedly connected to the first waist ruler 40, and the other end of the first caliper ruler 31 is partially recessed to form a recessed cavity 31a. One end of the second caliper ruler 32 is hingedly connected to the second waist ruler 41, and the other end of the second caliper ruler 32 is slidably arranged in the recessed cavity 31a. The first caliper ruler 31 and the second caliper ruler 32 are locked and fixed by the locking member 9. In use, the locking member 9 is first unlocked, and then the total length of the caliper ruler 3 is adjusted by pulling the second caliper ruler 32 to make the second caliper ruler 32 slide along the recessed cavity 31a according to the distance between the inner side walls of the two side discs of the winch drum 6. When the two ends of the caliper ruler 3 can abut against the inner side walls of the two side discs of the winch drum 6, respectively, the first caliper ruler 31 and the second caliper ruler 32 are locked and fixed by the locking member 9 to keep the length of the caliper ruler 3 fixed, and the positioning of the calibration tool of the embodiment on the winch drum 6 is completed.
[0055] Referring to Figure 4Preferably, the first caliper 31 is provided with a locking hole 31b in communication with the recess 31a, the locking hole 31b is provided with an internal thread, and the locking member 9 is provided with an external thread, the locking member 9 is connected with the locking hole 31b by the cooperation of the external thread and the internal thread, and abuts against the second caliper 32. When the length of the caliper 3 needs to be adjusted, the locking member 9 is loosened to separate the locking member 9 from the second caliper 32, and the second caliper 32 is pulled to slide along the recess 31a relative to the first caliper 31. After the caliper 3 is adjusted to a proper length, the locking member 9 is tightened to abut against the second caliper 32, and the first caliper 31 and the second caliper 32 are kept relatively fixed under the action of a large static friction force.
[0056] Referring to Figure 3 Preferably, the logging winch calibration tool of the embodiment further comprises a first baffle 50 and a second baffle 51, the first baffle 50 and the second baffle 51 are respectively connected to the two ends of the caliper 3 and are perpendicular to the caliper 3, when the caliper 3 is elongated or shortened, the first baffle 50 and the second baffle 51 are always perpendicular to the caliper 3, and the first baffle 50 and the second baffle 51 are both parallel to the inner side walls of the two side discs of the winch drum 6. In use, the first baffle 50 and the second baffle 51 are respectively abutted and fitted on the inner side walls of the two side discs, which increases the contact area between the two ends of the caliper 3 and the two side discs of the winch drum 6, prevents the caliper 3 from sliding or shifting during measurement, and helps to more accurately position the logging winch calibration tool, ensuring the accuracy during measurement.
[0057] The use process of the logging winch calibration tool of the embodiment is as follows:
[0058] Preparation: check all components including the calibration ruler 1, the caliper 3, the first caliper 31, the second caliper 32, the first baffle 50 and the second baffle 51 are all in good condition, and the calibration assembly (the laser lamp 10 and / or the auxiliary calibration point 20) can work normally.
[0059] Positioning the calibration tool: place the caliper 3 between the inner side walls of the two side discs of the winch drum 6, loosen the locking member 9, adjust the relative position of the first caliper 31 and the second caliper 32 to elongate the caliper 3, and then tighten the locking member 9 when the first baffle 50 and the second baffle 51 are abutted and fitted on the inner side walls of the two side discs of the winch drum 6.
[0060] Adjusting the position of the calibration ruler 1: rotate the calibration ruler 1 to make the calibration ruler 1 perpendicular to the caliper 3, and keep this state.
[0061] Calibration operation using the calibration assembly: according to different calibration assemblies, corresponding calibration operations are performed:
[0062] If the laser lamp 10 is used, the laser lamp 10 is turned on, the position on the derrick 7 to which the light beam emitted by the laser lamp 10 points is observed, and the ground pulley is installed at the position or the logging winch is moved so that the light beam emitted by the laser lamp 10 points to the ground pulley on the derrick 7;
[0063] If the auxiliary calibration point 20 is used, the line connecting the line of sight and the auxiliary calibration point 20 is aligned, the position on the derrick 7 corresponding to the line of sight is determined, and the ground pulley is installed at the position or the logging winch is moved so that the line of sight corresponds to the ground pulley on the derrick 7.
[0064] The above description is only preferred embodiments of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and replacements can be made, and these improvements and replacements should also be considered as the protection scope of the present application.
Claims
1. A well-logging draw-works calibration tool, characterized by, The utility model relates to a caliper (3), a first waist ruler (40) and a second waist ruler (41), the first waist ruler (40) and the second waist ruler (41) are equal in length, the caliper (3), the first waist ruler (40) and the second waist ruler (41) are connected end to end to form an isosceles triangle, one end of the caliper (1) is connected to the vertex of the isosceles triangle, and the caliper (1) is perpendicular to the caliper (3), the caliper (1) has a center line parallel to the length direction of the caliper (1), and the caliper (1) is provided with a calibration assembly for indicating the straight line where the center line is located.
2. The logging drawworks calibration tool of claim 1, wherein, The calibration assembly comprises a laser lamp (10), and the light beam emitted by the laser lamp (10) coincides with the center line.
3. The logging drawworks calibration tool of claim 2, wherein, The laser lamp (10) is detachably arranged on the caliper (1).
4. The logging drawworks calibration tool of claim 1, wherein, The calibration assembly comprises at least two auxiliary calibration points (20) arranged at intervals, and all the auxiliary calibration points (20) are located on the center line.
5. The logging drawworks calibration tool of claim 4, wherein, The auxiliary calibration point (20) is a protrusion protruding from the outer surface of the caliper (1).
6. The logging drawworks calibration tool of claim 1, wherein, One end of the caliper (1) is hingedly connected to the vertex of the isosceles triangle, and the other end is a free end.
7. The logging drawworks calibration tool of claim 1, wherein, The caliper (3), the first waist ruler (40) and the second waist ruler (41) are hingedly connected to each other, and the caliper (3) can be telescopically adjusted in length.
8. The logging drawworks calibration tool of claim 7, wherein, The caliper (3) comprises a first caliper (31) and a second caliper (32), one end of the first caliper (31) is hingedly connected to the first waist ruler (40), and the other end is recessed to form a recess (31a), one end of the second caliper (32) is hingedly connected to the second waist ruler (41), and the other end is slidably arranged in the recess (31a), and the first caliper (31) and the second caliper (32) are locked and fixed by a locking member (9).
9. The logging drawworks calibration tool of claim 8, wherein, The first caliper (31) is provided with a locking hole (31b) in communication with the recess (31a), the locking hole (31b) is provided with an internal thread, the locking member (9) is provided with an external thread, the locking member (9) is connected to the internal thread of the locking hole (31b) through the external thread, and the second caliper (32) is abutted.
10. The logging drawworks calibration tool of claim 1, wherein, The utility model further comprises a first baffle (50) and a second baffle (51), the first baffle (50) and the second baffle (51) are respectively connected to the two ends of the caliper (3) and are perpendicular to the caliper (3).