CN209780872U - Sidewall contact device and multi-arm caliper logging instrument - Google Patents
Sidewall contact device and multi-arm caliper logging instrument Download PDFInfo
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- CN209780872U CN209780872U CN201920489353.0U CN201920489353U CN209780872U CN 209780872 U CN209780872 U CN 209780872U CN 201920489353 U CN201920489353 U CN 201920489353U CN 209780872 U CN209780872 U CN 209780872U
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Abstract
The sidewall contact device comprises a mandrel and at least one backup arm, wherein one backup arm comprises two backup rods and a wear-resistant block, the two backup rods can freely stretch out and draw back, the tail ends of the two backup rods are respectively hinged with the two ends of the mandrel, the head ends of the two backup rods are respectively provided with a notch, the head ends of the two backup rods are hinged at the two notches through a hinge shaft, the wear-resistant block is arranged on the hinge shaft in a penetrating manner and can rotate in the two notches, two arc-shaped through holes are symmetrically formed in the two sides of the hinge shaft on the wear-resistant block, a positioning piece is respectively arranged on each backup rod, and one positioning piece movably penetrates through the corresponding arc-shaped through hole. The multi-arm caliper logger comprises an upper joint and a lower joint which are connected in sequence. The utility model discloses sidewall contact device can reduce the wear-resisting piece and meet the condition of hindering or wearing and tearing.
Description
Technical Field
The utility model relates to a logging instrument in oil gas field, concretely relates to sidewall contact device and multi-arm caliper logging instrument.
Background
The sidewall contact device is an important device of a caliper logging instrument, and the caliper measurement is realized by utilizing the opening size of each backup arm of the sidewall contact device in the logging process. Some caliper logging instruments find in the use that the thrust arm is used for "wear-resisting piece" that hugs closely with the wall of a well and wear seriously, and wear-resisting piece is difficult to reset after meeting and hindering and taking place. In addition, after the caliper logging instrument is hung with other open hole well instruments, the positioning of the instrument string cannot be realized, namely the high edges of the instrument string are not uniform.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a sidewall contact device, including dabber and at least one backup arm, one the backup arm includes two backup rods and a wear-resisting piece, and two backup rods all can freely stretch out and draw back, and the tail end of two backup rods is articulated with the both ends of dabber respectively, and the head end of two backup rods all is equipped with a notch, and the head end of two backup rods is articulated through a hinge in two notches department, wear-resisting piece is worn to locate can be at two notch internal rotations on the hinge, lie in on the wear-resisting piece the bilateral symmetry of hinge is equipped with two arc through-holes, respectively be equipped with a setting element on two backup rods, a setting element activity passes corresponding one the arc through-hole.
another embodiment of the utility model provides a multi-arm caliper tool, including the top connection that connects gradually the embodiment of the utility model provides a sidewall contact device and lower clutch, the lower extreme of top connection with the upper end of the dabber of sidewall contact device is connected, the dabber of sidewall contact device the lower extreme with the upper end of lower clutch is connected.
Has the advantages that:
In the sidewall contact device provided by the embodiment of the utility model, the wear-resistant block of the backup arm is provided with two arc-shaped through holes which are in sliding fit with two positioning pieces arranged on two backup rods of the backup arm, so that the rotation angle of the wear-resistant block can be limited on one hand; on the other hand, compared with the arrangement of an arc-shaped through hole, the wear-resistant block can rotate more flexibly along with the specific conditions of the well wall (namely the change of the well diameter) in the process of up-measurement or down-measurement of the instrument, the phenomenon of unbalance loading of the wear-resistant block caused by the fact that the wear-resistant block rotates only in one direction is avoided, the abrasion of the wear-resistant block is reduced, and the wear-resistant block can be reset after being subjected to resistance.
Drawings
The accompanying drawings are included to provide a further understanding of the technical solutions of the present invention, and are incorporated in and constitute a part of this specification, together with the embodiments of the present invention for explaining the technical solutions of the present invention, and do not constitute a limitation on the technical solutions of the present invention.
Fig. 1 is a schematic structural diagram of a caliper tool according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic cross-sectional view of the caliper tool of FIG. 1;
FIG. 4 is an enlarged view of a portion of FIG. 3 at B;
FIG. 5 is a schematic view of the structure at both ends of the upper joint in FIG. 3;
FIG. 6 is a schematic view of the structure at the lower joint of FIG. 3;
The reference signs are: 1. the upper protective cap comprises an upper protective cap body, 2, an upper joint, 21, a first fixing piece, 22, a fifth positioning part, 23, a first positioning part, 3, a pushing device, 30, a mandrel, 301, a second fixing piece, 31, a first pushing rod, 32, a wear-resisting block, 321, a first arc-shaped through hole, 322, a second arc-shaped through hole, 323, a transitional slope, 33, a second pushing rod, 34, a first positioning piece, 35, a second positioning piece, 36, a hinge shaft, 37, a fixing pin, 4, a lower joint, 41, a fourth positioning part, 42, a sixth positioning part, 5 and a lower protective cap body.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention.
As shown in fig. 1-4, an embodiment of the present invention provides a sidewall contact device, comprising a mandrel 30 and at least one sidewall contact arm, one of the sidewall contact arms comprises two sidewall contact rods and a wear-resistant block 32, the two sidewall contact rods are respectively a first sidewall contact rod 31 and a second sidewall contact rod 33, the first sidewall contact rod 31 and the second sidewall contact rod 33 can freely extend and retract, the tail ends of the first sidewall contact rod 31 and the second sidewall contact rod 33 are respectively hinged to two ends of the mandrel 30, the head end of the first sidewall contact rod 31 is provided with a notch 311, the head end of the second sidewall contact rod 33 is provided with a notch 331, the head ends of the first sidewall contact rod 31 and the second sidewall contact rod 33 are hinged to the notch 311 and the notch 331 through a hinge 36, the wear-resistant block 32 is disposed on the hinge 36 and can rotate in the notch 311 and the wear-resistant notch 331, two arc-shaped through holes are symmetrically disposed on two sides of the hinge 36 on the block 32, a first arc-shaped through hole 321 and a second arc-shaped through hole 322, which may be arc-shaped through holes, are symmetrically disposed on two sides of the hinge shaft 36. The first leaning rod 31 is provided with a first positioning element 34, the first positioning element 34 is located in the notch 311 of the first leaning rod 31, two ends of the first positioning element 34 are fixed on two side walls of the notch 311, and the first positioning element 34 movably penetrates through the first arc-shaped through hole 321. The second positioning member 35 is disposed on the second pushing rod 33, the second positioning member 35 is disposed in the notch 331 of the second pushing rod 33, two ends of the second positioning member 35 are fixed on two sidewalls of the notch 331, and the second positioning member 35 movably passes through the second arc-shaped through hole 322.
In this embodiment, in the process that the wear-resistant block 32 rotates around the hinge shaft 36, the first positioning element 34 and the second positioning element 35 slide in the first arc-shaped through hole 321 and the second arc-shaped through hole 322, respectively, the first arc-shaped through hole 321 and the second arc-shaped through hole 322 can play a role in limiting the rotation angle of the wear-resistant block 32, and the first arc-shaped through hole 321 and the second arc-shaped through hole 322 can be set to have an angle of 15 ° to 25 ° that the wear-resistant block can rotate.
In addition, set up first arc through-hole 321 and second arc through-hole 322 and respectively with first setting element 34 and second setting element 35 sliding fit, compare in setting up an arc through-hole, after setting up two arc through-holes, at the in-process of survey or surveying down on the instrument, wear-resisting piece 32 rotates more nimble along with the particular case (being the hole diameter size change) of the wall of a well, avoided wear-resisting piece 32 only one direction to rotate and the wear-resisting piece 32 unbalance loading phenomenon that causes, reduced wear-resisting piece 32 promptly, and can make wear-resisting piece 32 can reset after meeting and hindering. In the case that only one arc through hole is provided for the wear-resistant block 32, if there is a hard stone stuck in the gap between the side of the wear-resistant block 32 where the arc through hole is provided and the notch of the side leaning rod, at this time, the wear-resistant block 32 is in a state where one side is eccentric, that is, the wear-resistant block 32 cannot rotate around the hinge shaft 36, which will cause the side of the wear-resistant block 32 where the arc through hole is not provided to always lean against the well wall for sliding friction, and will cause the side to wear more quickly. In this case, if the wear-resistant block 32 is provided with two arc-shaped through holes, the arc-shaped through hole on the side will cause the side portion of the wear-resistant block 32 to wind back to the original state, i.e. rotate around the hinge shaft 36, so that the wear-resistant block 32 can be reset after being blocked.
In this embodiment, the wear-resistant block 32 may be a trapezoidal block structure, and a transition inclined plane 323 is disposed between the outer plane of the wear-resistant block 32 and the two side inclined planes of the wear-resistant block 32.
The hinge shaft 36 can pass through a hinge shaft hole arranged in the wear-resistant block 32, the wear-resistant block 32 and the hinge shaft 36 are fixed together through a fixing pin 37 arranged in the wear-resistant block 32, and the wear-resistant block 32 can rotate in the notch 311 and the notch 331 along with the rotation of the hinge shaft 36.
As shown in fig. 1 and 3, another embodiment of the present invention provides a multi-arm caliper tool, including the top connection 2, the sidewall contact 3 and the bottom connection 4 of any embodiment of the present invention connected in sequence, the lower end of the top connection 2 is connected with the upper end of the mandrel 30 of the sidewall contact 3, the lower end of the mandrel 30 of the sidewall contact 3 is connected with the upper end of the bottom connection 4. Wherein, the number of the backup arms of the backup device 3 is six.
the upper end of top connection 2 is used for treating the connecting piece with first and is connected, the lower extreme of lower clutch 4 is used for treating the connecting piece with the second and is connected, wherein, top connection 2 and lower clutch 4 treat the connecting piece through first and second respectively and are connected with other instruments to transmission signal. The upper joint 2 and the lower joint 4 protect the upper joint 2 and the lower joint 4 through the upper protective cap 1 and the lower protective cap 5, respectively, when not connected with other instruments. After the caliper logging instrument is connected with other instruments to form an instrument string, the positioning uniformity of the instrument string needs to be ensured, namely the high edges of the instrument string are uniform.
as shown in fig. 5 and 6, in the present embodiment, a first positioning portion 23 is disposed at a lower end of the upper joint 2, and a second positioning portion matched with the first positioning portion 23 is disposed at an upper end of the mandrel 30, so that the lower end of the upper joint 2 and the upper end of the mandrel 30 are circumferentially positioned; the lower end of the mandrel 30 is provided with a third positioning part, and the upper end of the lower joint 4 is provided with a fourth positioning part 41 matched with the third positioning part, so that circumferential positioning is performed between the lower end of the mandrel 30 and the upper end of the lower joint 4. Therefore, when the upper joint 2 and the lower joint 4 are connected with two ends of the mandrel 30 of the sidewall contact device 3, the circumferential positions of the upper joint 2 and the lower joint can be accurately positioned.
One of the first positioning portion 23 and the second positioning portion is a positioning boss, and the other is a positioning groove; similarly, one of the third positioning portion and the fourth positioning portion 41 is a positioning boss, and the other is a positioning groove.
In order to further ensure that the instrument string formed by connecting the caliper logging instrument with other instruments is accurately positioned in the circumferential direction, the upper end of the upper joint 2 is provided with a fifth positioning part 22 for circumferentially positioning the first to-be-connected component, and the lower end of the lower joint 4 is provided with a sixth positioning part 42 for circumferentially positioning the second to-be-connected component. In practical operation, in order to ensure the high sides of the instrument cluster are uniform, the fifth positioning portion 22, the first positioning portion 23, the fourth positioning portion 41 and the sixth positioning portion 42 are located on the same straight line.
the fifth positioning portion 22 and the sixth positioning portion 42 may also be configured to adopt a boss-groove positioning manner with the first to-be-connected component and the second to-be-connected component, and the fifth positioning portion 22 and the sixth positioning portion 42 may be positioning bosses or positioning grooves.
The upper end of the upper joint 2 can also be provided with a first fixing piece 21, and the first fixing piece 21 is used for connecting the upper end of the upper joint 2 and a first to-be-connected piece after the upper end of the upper joint is butted with the first to-be-connected piece, and the first fixing piece 21 can be a quick-turning nut and can be in threaded connection with the first to-be-connected piece. The upper end of the mandrel 30 may further be provided with a second fixing member 301, and the second fixing member 301 is used to connect the lower end of the upper joint 2 and the upper end of the mandrel 30 after the lower end of the upper joint is in butt joint with each other, and the second fixing member 301 may be a quick-turn nut and may be in threaded connection with the lower end of the upper joint 2.
The utility model discloses caliper logger, overall structure is simple, novel, safe and reliable. The working index can reach 204 ℃/175Mpa, can meet the requirement of being connected with a high-temperature instrument in a hanging way, and is suitable for the operation of a high-temperature well.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "fixedly connected," "mounted," and "assembled" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening elements, or may be connected through the interconnection between two elements. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.
Claims (8)
1. a sidewall contact device, characterized by: including dabber and at least one arm of leaning on, one the arm of leaning on includes two and pushes away the pole and wear-resisting piece, and two are pushed away the pole and all can freely stretch out and draw back, and the tail end of two push away the pole is articulated with the both ends of dabber respectively, and the head end of two push away the pole all is equipped with a notch, and the head end of two push away the pole is articulated through a hinge in two notches department, wear-resisting piece is worn to locate on the hinge and can be at two notch internal rotations, lie in on the wear-resisting piece the bilateral symmetry of hinge is equipped with two arc through-holes, respectively be equipped with a setting element on two push away the pole, a setting element activity passes one that corresponds the arc through-hole.
2. the sidewall contact device of claim 1, wherein: the arc-shaped through hole is set to be 15-25 degrees of the angle that the wear-resisting block can rotate.
3. The sidewall contact device of claim 1, wherein: the whole wear-resisting piece is trapezoidal block structure, all be equipped with the transition inclined plane between the outside plane of wear-resisting piece and two side inclined planes of wear-resisting piece.
4. a multi-arm caliper tool, characterized in that: the push rod device comprises an upper joint, a push rod device according to any one of claims 1 to 3 and a lower joint which are connected in sequence, wherein the lower end of the upper joint is connected with the upper end of a mandrel of the push rod device, and the lower end of the mandrel of the push rod device is connected with the upper end of the lower joint.
5. The multi-arm caliper tool of claim 4, wherein: the lower end of the upper joint is provided with a first positioning part, and the upper end of the mandrel is provided with a second positioning part matched with the first positioning part, so that the lower end of the upper joint and the upper end of the mandrel are circumferentially positioned;
The lower end of the mandrel is provided with a third positioning part, and the upper end of the lower joint is provided with a fourth positioning part matched with the third positioning part, so that circumferential positioning is performed between the lower end of the mandrel and the upper end of the lower joint.
6. The multi-arm caliper tool of claim 5, wherein: the upper end of the upper joint is used for being connected with a first part to be connected, and the lower end of the lower joint is used for being connected with a second part to be connected;
The upper end of the upper joint is provided with a fifth positioning part used for being positioned in the circumferential direction of the first to-be-connected piece, and the lower end of the lower joint is provided with a sixth positioning part used for being positioned in the circumferential direction of the second to-be-connected piece.
7. The multi-arm caliper tool of claim 6, wherein: the fifth positioning portion, the first positioning portion, the fourth positioning portion, and the sixth positioning portion are located on the same straight line.
8. the multi-arm caliper tool of claim 5, wherein: one of the first positioning part and the second positioning part is a positioning boss, and the other one of the first positioning part and the second positioning part is a positioning groove; and/or
One of the third positioning part and the fourth positioning part is a positioning boss, and the other one is a positioning groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920489353.0U CN209780872U (en) | 2019-04-11 | 2019-04-11 | Sidewall contact device and multi-arm caliper logging instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920489353.0U CN209780872U (en) | 2019-04-11 | 2019-04-11 | Sidewall contact device and multi-arm caliper logging instrument |
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| CN209780872U true CN209780872U (en) | 2019-12-13 |
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| CN201920489353.0U Active CN209780872U (en) | 2019-04-11 | 2019-04-11 | Sidewall contact device and multi-arm caliper logging instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869139A (en) * | 2019-04-11 | 2019-06-11 | 中国海洋石油集团有限公司 | A kind of telescoping ram and caliper logging tool |
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- 2019-04-11 CN CN201920489353.0U patent/CN209780872U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869139A (en) * | 2019-04-11 | 2019-06-11 | 中国海洋石油集团有限公司 | A kind of telescoping ram and caliper logging tool |
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