Interconnection assembly and multi-parameter measuring instrument while drilling

Abstract

The invention relates to the technical field of oil drilling equipment, in particular to an interconnection assembly and a multi-parameter measurement instrument while drilling, and aims to solve the technical problem that an existing communication connection mode between parameter short sections is prone to failure. The two adjacent parameter pup joints of the interconnection assembly are mechanically connected through the connecting pup joint, and are electrically connected through the fluid director, so that the problem of communication connection failure caused by a conducting ring is solved, the reliability of connection between the parameter pup joints is improved, and meanwhile, the overall use performance of an instrument is also improved.

Description

Technical Field

[0001] The invention relates to the technical field of oil drilling equipment, and in particular to an interconnection assembly and a multi-parameter measurement while drilling instrument. Background Art

[0002] In response to the increasing demand for diversified measurement parameters while drilling in the domestic and foreign markets, a variety of geological parameter measurement instruments have begun to be used in combination to improve reservoir drilling rate and drilling speed.

[0003] At present, adjacent parameter nipples of various measuring instruments are usually connected through conductive rings, which are located on the threaded end faces of the parameter nipples, thereby establishing communication connections between the measuring instruments. However, in the underground working environment with high temperature and severe vibration, poor contact between the conductive ring and the parameter nipples is prone to occur, resulting in a high failure rate, leading to failure of the communication connection, which directly affects the construction progress. Summary of the invention

[0004] The object of the present invention is to provide an interconnection assembly and a multi-parameter measurement while drilling instrument to solve the technical problem that the existing communication connection mode between parameter short sections is prone to failure.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0006] In a first aspect, the present invention provides an interconnection assembly, comprising: a parameter nipple, a connecting nipple and a flow guide;

[0007] The connecting short section is located between two adjacent parameter short sections, and one end of the connecting short section is connected to one of the parameter short sections, and the other end is connected to the other parameter short section;

[0008] The deflectors correspond to the parameter short sections one by one and are located inside the parameter short sections, and the two deflectors disposed at two adjacent parameter short sections are symmetrically distributed about the connecting short section;

[0009] The flow guide comprises a flow guide body and a first connector;

[0010] The guide body is connected to the inner wall of the parameter short section and is provided with a wire hole penetrating through it;

[0011] The first connector is connected to the end of the guide body facing the connecting short section, and is electrically connected to the parameter short section through a communication line passing through the wire hole, and between two adjacent parameter short sections, two first connectors are connected by wire.

[0012] Furthermore, the flow guide body includes a fixed section and a wire section;

[0013] The fixed section is in a circular ring shape and is connected to the parameter short section;

[0014] The wire segment is in a rod shape, passes through the fixed segment, and forms a flow passage with the fixed segment. The outer side surface of the wire segment is connected to the inner wall of the fixed segment through a connecting wing.

[0015] Furthermore, the end of the wire segment away from the first connector is conical;

[0016] The connecting wing extends along the axial direction of the fixing section, and both ends thereof are in the shape of a triangular wedge, and the connecting lines of the two inclined surfaces of each end are connected between the fixing section and the conductor section, and the connection between the two inclined surfaces adopts an arc transition.

[0017] Furthermore, the length of the connecting wing is shorter than the length of the fixing section.

[0018] Furthermore, the wire holes are distributed on the fixing section, the connecting wing and the wire section, forming an L shape;

[0019] The fixing section is connected to the parameter short section through a positioning pin, and the positioning pin is provided with an inner hole penetrating therethrough, and the inner hole is communicated with the wire passing hole.

[0020] Furthermore, the interconnection assembly further comprises a telescopic component, and along the axial direction of the connecting short section, the telescopic component has two states: extension and contraction;

[0021] The telescopic assembly is inserted into the connecting short section, and is respectively connected to the two flow guide bodies, and is respectively electrically connected to the two first connectors.

[0022] Further, the telescopic assembly includes an inner sleeve, an outer sleeve, a sliding sleeve and a fixed sleeve;

[0023] The inner sleeve is inserted into the outer sleeve and forms an annular channel with the outer sleeve;

[0024] One end of the outer sleeve is threadedly connected to the inner sleeve;

[0025] The sliding cylinder is inserted into the annular channel and can slide along the axial direction of the annular channel. The end of the sliding cylinder outside the annular channel is threadedly connected to the fixed cylinder.

[0026] Furthermore, a first fixing nut is provided in the inner sleeve, and the first fixing nut is threadedly connected to the inner sleeve;

[0027] A second fixing nut is provided in the fixing cylinder, and the second fixing nut is threadedly connected to the fixing cylinder;

[0028] The second fixing nut and the first fixing nut are both distributed outside two ends of the sliding cylinder.

[0029] Furthermore, the telescopic assembly also includes a dust ring and a U-shaped sealing ring, and the dust ring and the U-shaped sealing ring are embedded in the inner wall of the other end of the outer sleeve and are both in contact with the outer wall of the sliding cylinder.

[0030] In summary of the above technical solutions, the technical effects that can be achieved by the interconnection assembly provided by the present invention are:

[0031] The interconnection assembly includes a parameter short section, a connecting short section and a guide; the connecting short section is located between two adjacent parameter short sections, and one end of the connecting short section is connected to one of the parameter short sections, and the other end is connected to the other parameter short section; the guide corresponds to the parameter short section one by one, and is located in the parameter short section, and the two guides arranged in the two adjacent parameter short sections are symmetrically distributed about the connecting short section; the guide includes a guide body and a first connector; the guide body is connected to the inner wall of the parameter short section, and is provided with a wire hole passing through it; the first connector is connected to the end of the guide body facing the connecting short section, and is electrically connected to the parameter short section through a communication line passing through the wire hole, and between the two adjacent parameter short sections, the two first connectors are connected by wire.

[0032] In the interconnection assembly, the connecting short section is connected between the two parameter short sections to achieve mechanical connection between the two parameter short sections; each parameter short section corresponds to a deflector, and the communication line led out from the parameter short section passes through the deflector body of the deflector and is passed through the wire hole and electrically connected to the first connector, and the two opposite first connectors are connected by wire, so that the two parameter short sections are electrically connected.

[0033] It can be seen that compared with the existing technology, the two adjacent parameter short sections of the interconnection assembly are mechanically connected by connecting the short sections and electrically connected by the guide, which eliminates the communication connection failure problem caused by the conductive ring, improves the reliability of the connection between the parameter short sections, and also improves the overall performance of the instrument.

[0034] In a second aspect, the present invention provides a multi-parameter measurement while drilling instrument, comprising the interconnection assembly described above.

[0035] The beneficial effects of the multi-parameter measurement while drilling provided by the present invention are as follows:

[0036] The multi-parameter measurement while drilling instrument provided by the present invention includes an interconnection assembly. Therefore, the technical advantages and effects achieved by the multi-parameter measurement while drilling instrument also include the technical advantages and effects achieved by the above-mentioned interconnection assembly, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 A cross-sectional view of an interconnect assembly provided for an embodiment of the present invention;

[0039] Figure 2 A cross-sectional view of the connection between the deflector and the parameter nipple provided by an embodiment of the present invention;

[0040] Figure 3 for Figure 2 A cross-sectional view of the middle deflector along the A-A' direction;

[0041] Figure 4 A side view of a flow guide body provided in an embodiment of the present invention;

[0042] Figure 5 A cross-sectional view of a telescopic mechanism provided by an embodiment of the present invention;

[0043] Figure 6 for Figure 5 The enlarged view of point Ⅰ;

[0044] Figure 7 for Figure 5 An enlarged view of point II.

[0045] Icon: 100-parameter nipple; 110-cover plate;

[0046] 200-connecting nipple;

[0047] 300-flow guide; 310-flow guide body; 320-first connector; 330-flow passage; 340-high-voltage sealing plug; 350-aluminum sleeve; 311-wire hole; 312-fixed section; 313-wire section; 314-connecting wing;

[0048] 400-positioning nails;

[0049] 500-telescopic assembly; 510-inner sleeve; 520-outer sleeve; 530-sliding sleeve; 540-fixing sleeve; 550-first fixing nut; 560-second fixing nut; 570-dustproof ring; 580-U-shaped sealing ring. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0053] At present, adjacent parameter nipples of various measuring instruments are usually connected through conductive rings, which are located on the threaded end faces of the parameter nipples, thereby establishing communication connections between the measuring instruments. However, in the underground working environment with high temperature and severe vibration, poor contact between the conductive ring and the parameter nipples is prone to occur, resulting in a high failure rate, leading to failure of the communication connection, which directly affects the construction progress.

[0054] In view of this, the present invention provides an interconnection assembly, including a parameter short section 100, a connecting short section 200 and a guide 300; the connecting short section 200 is located between two adjacent parameter short sections 100, and one end of the connecting short section 200 is connected to one of the parameter short sections 100, and the other end is connected to the other parameter short section 100; the guide 300 corresponds to the parameter short section 100 one by one, and is located in the parameter short section 100, and the two guides 300 disposed in the two adjacent parameter short sections 100 are connected to the connecting short section. 200 are symmetrically distributed; the guide 300 includes a guide body 310 and a first connector 320; the guide body 310 is connected to the inner wall of the parameter short section 100, and is provided with a wire hole 311 passing through itself; the first connector 320 is connected to the end of the guide body 310 facing the connecting short section 200, and is electrically connected to the parameter short section 100 through a communication line passing through the wire hole 311, and between two adjacent parameter short sections 100, the two first connectors 320 are connected by wire.

[0055] In the interconnection assembly, the connecting short section 200 is connected between two parameter short sections 100, so that the two parameter short sections 100 are mechanically connected; each parameter short section 100 corresponds to a deflector 300, and the communication line led out from the parameter short section 100 passes through the deflector body 310 of the deflector 300, and is passed through the wire hole 311, and is electrically connected to the first connector 320, and the two opposite first connectors 320 are connected by wire, so that the two parameter short sections 100 are electrically connected.

[0056] It can be seen that compared with the prior art, the two adjacent parameter short sections 100 of the interconnection assembly are mechanically connected through the connecting short section 200 and electrically connected through the guide 300, which eliminates the communication connection failure problem caused by the conductive ring, improves the reliability of the connection between the parameter short sections 100, and also improves the overall performance of the instrument.

[0057] The following combination Figures 1 to 7 The structure and shape of the interconnection assembly provided in this embodiment are described in detail:

[0058] Regarding the deflector 300, specifically:

[0059] refer to Figure 2 The deflector 300 also includes a high-pressure sealing plug 340 and an aluminum sleeve 350. The high-pressure sealing plug 340 is in the wire hole 311, and one end of the high-pressure sealing plug 340 abuts against the step surface of the wire hole 311, and the other end abuts against the aluminum sleeve 350. The first connector 320 is fixed to the end surface of the wire segment 313 by screws, and the aluminum sleeve 350 is pressed tightly. The communication line drawn from the parameter short section 100 is connected to the high-pressure sealing plug 340, and the high-pressure sealing plug 340 is electrically connected to the first connector 320. Here, the high-pressure sealing plug 340 plays a sealing role, avoiding the problem of short circuit of the communication line caused by mud entering the wire hole 311, and ensuring the effectiveness of the electrical connection between the first connector 320 and the parameter short section 100.

[0060] refer to Figures 2 to 4 The flow guide body 310 includes a fixed section 312 and a wire section 313; the fixed section 312 is annular and connected to the parameter short section 100; the wire section 313 is rod-shaped and penetrates the fixed section 312, and forms a flow channel 330 between the fixed section 312, and the outer side surface of the wire section 313 is connected to the inner wall of the fixed section 312 through a connecting wing 314.

[0061] Continue to refer Figures 2 to 4The wire holes 311 are distributed in the fixed section 312, the connecting wings 314 and the wire section 313, and are L-shaped as a whole; the fixed section 312 is connected to the parameter short section 100 through the positioning pin 400, and the positioning pin 400 is provided with an inner hole penetrating through it, and the inner hole is connected with the wire hole 311; along the axial direction of the fixed section 312, the outer wall of the fixed section 312 is provided with a plurality of circular grooves, which are distributed on both sides of the positioning pin 400, and sealing retaining rings are correspondingly provided in the circular grooves; the outer wall of the parameter short section 100 is recessed inward to form a receiving groove, and the cover plate 110 is covered on the receiving groove and fixedly connected to the parameter short section 100, and the communication line led out from the parameter short section 100 passes through the receiving groove and the inner hole to the wire hole 311.

[0062] By adopting the above design, the communication line of the parameter short section 100 is changed from wall type to shaft type, and two adjacent parameter short sections 100 can be electrically connected through the deflector 300; the mud can pass through the deflector 300 from the flow channel 330, avoiding the increase of mud pressure drop.

[0063] refer to Figure 2 , the end of the wire segment 313 away from the first connector 320 is conical, and the vertex thereof adopts an arc transition; Figures 2 to 4 The connecting wing 314 extends along the axial direction of the fixing section 312, and its length is shorter than the length of the fixing section 312. Both ends of the connecting wing 314 are triangular wedge-shaped, and the connecting lines of the two inclined surfaces of each end are connected between the fixing section 312 and the wire section 313. Figure 4 As shown, the connection between the two inclined surfaces along the longitudinal extension adopts arc transition, and the connection between the two inclined surfaces and the fixed section 312 and the wire section 313 also adopts arc transition.

[0064] In the above design, the conductor segment 313 and the connecting wing 314 both play a diversion role, thereby reducing the impact force of mud on the conductor segment 313 when passing through the deflector 300, avoiding the mud from forming eddies on the end face of the connecting wing 314 and impacting the inner wall of the short section, thereby ensuring the stability of the connection between the deflector 300 and the fixed segment 312.

[0065] For further reference, Figure 1 and Figure 5 The interconnection assembly also includes a telescopic component 500, which has two states of extension and contraction along the axial direction of the connecting short section 200; the telescopic component 500 is penetrated through the connecting short section 200, and is respectively connected to the two guide bodies 310, and is respectively electrically connected to the two first connectors 320.

[0066] Specifically, an electrical connection is established between the two guides 300, that is, an electrical connection is established between the two parameter short sections 100, through the telescopic component 500; the telescopic component 500 is extended or contracted to adapt to the distance between the two guides 300 and compensate for the length loss caused by the short section buckle.

[0067] Regarding the telescopic assembly 500, specifically:

[0068] refer to Figures 5 to 7 The telescopic assembly 500 includes an inner sleeve 510, an outer sleeve 520, a sliding sleeve 530 and a fixed sleeve 540; the inner sleeve 510 is inserted into the outer sleeve 520 and forms an annular channel with the outer sleeve 520; one end of the outer sleeve 520 is threadedly connected to the inner sleeve 510; the sliding sleeve 530 is inserted into the annular channel and can slide along the axial direction of the annular channel, and the end of the sliding sleeve 530 outside the annular channel is threadedly connected to the fixed sleeve 540.

[0069] Specifically, refer to Figure 1 The upper end of the fixed cylinder 540 is threadedly connected to the upper guide body 310, and a second connector is provided in the upper end, and the second connector is plugged into the first connector 320 to establish an electrical connection; the lower end of the inner sleeve 510 is threadedly connected to the lower guide body 310, and a third connector is provided in the lower end, and the third connector is plugged into the first connector 320 to establish an electrical connection. Figures 5 to 7 A first fixing nut 550 is provided in the inner sleeve 510, and the first fixing nut 550 is threadedly connected to the inner sleeve 510; a second fixing nut 560 is provided in the fixing cylinder 540, and the second fixing nut 560 is threadedly connected to the fixing cylinder 540; the telescopic assembly 500 also includes a spiral wire, and the two ends of the spiral wire respectively pass through the first fixing nut 550 and the second fixing nut 560, and are correspondingly connected to the third connector and the second connector, so that the third connector establishes an electrical connection with the second connecting device.

[0070] By adopting the above design, the fixed cylinder 540 and the inner sleeve 510 can move toward or away from each other, thereby realizing the telescopic function of the telescopic assembly 500 and compensating for the length loss caused by the short section repair buckle; in addition, the fixed cylinder 540 and the inner sleeve 510 can also rotate relative to each other, thereby respectively realizing the screw connection with the corresponding guide body 310; the first fixing nut 550 and the second fixing nut 560 fix the spiral wire in the fixed cylinder 540 and the inner sleeve 510, preventing the spiral wire from getting knotted as the sliding cylinder 530 moves.

[0071] refer to Figure 6 The telescopic assembly 500 further includes a dust ring 570 and a U-shaped sealing ring 580 . The dust ring 570 and the U-shaped sealing ring 580 are embedded in the inner wall of the other end of the outer sleeve 520 and are both in contact with the outer wall of the sliding cylinder 530 .

[0072] Continue to refer Figure 6The inner wall of the outer sleeve 520 is provided with three sealing grooves. From top to bottom, the dust ring 570 and two U-shaped sealing rings 580 are sequentially arranged on the corresponding sealing rings, and the dust ring 570 scrapes the sliding cylinder 530, and the U-shaped sealing ring 580 is an asymmetric sealing lip with a shorter inner lip, which can absorb the vibration and bending deformation of the sliding cylinder 530, thereby effectively playing a sealing role, so that the external mud cannot enter the sliding cylinder 530. It should be noted here that the number of dust rings 570 and U-shaped sealing rings 580 is not limited to Figure 6 As shown, correspondingly, the number of sealing grooves is not limited to three, and can be determined according to actual conditions.

[0073] The present invention also provides a multi-parameter measurement while drilling instrument, including an interconnection assembly. Therefore, the technical advantages and effects achieved by the multi-parameter measurement while drilling instrument also include the technical advantages and effects achieved by the above-mentioned interconnection assembly, which will not be repeated here.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An interconnect assembly, characterized in that: include: A parameter nipple (100), a connecting nipple (200) and a flow guide (300); The connecting short section (200) is located between two adjacent parameter short sections (100), and one end of the connecting short section (200) is connected to one of the parameter short sections (100), and the other end is connected to the other parameter short section (100); The flow guides (300) correspond to the parameter short sections (100) one by one and are located inside the parameter short sections (100), and the two flow guides (300) disposed in two adjacent parameter short sections (100) are symmetrically distributed about the connecting short section (200); The flow guide (300) comprises a flow guide body (310) and a first connector (320); The flow guide body (310) is connected to the inner wall of the parameter nipple (100) and is provided with a wire hole (311) penetrating the flow guide body; The first connector (320) is connected to the end of the guide body (310) facing the connecting short section (200), and is electrically connected to the parameter short section (100) via a communication line passing through the wire hole (311), and between two adjacent parameter short sections (100), the two first connectors (320) are connected by wire.

2. The interconnection assembly according to claim 1, characterized in that The flow guide body (310) comprises a fixed section (312) and a wire section (313); The fixing section (312) is in a circular ring shape and is connected to the parameter short section (100); The wire segment (313) is rod-shaped, penetrates the fixed segment (312), and forms a flow passage (330) with the fixed segment (312); the outer side surface of the wire segment (313) is connected to the inner wall of the fixed segment (312) via a connecting wing (314).

3. The interconnection assembly according to claim 2, characterized in that The end of the wire segment (313) away from the first connector (320) is in a cone shape; The connecting wing (314) extends axially along the fixed section (312), and both ends thereof are triangular wedge-shaped, and the connecting lines of the two inclined surfaces of each end are connected between the fixed section (312) and the wire section (313), and the connection between the two inclined surfaces adopts arc transition.

4. The interconnection assembly according to claim 3, characterized in that The length of the connecting wing (314) is shorter than the length of the fixing section (312).

5. The interconnection assembly according to claim 2, characterized in that The wire holes (311) are distributed on the fixing section (312), the connecting wings (314) and the wire section (313) and are L-shaped; The fixing section (312) is connected to the parameter short section (100) via a positioning pin (400), and the positioning pin (400) is provided with an inner hole penetrating therethrough, and the inner hole is communicated with the wire hole (311).

6. The interconnection assembly according to any one of claims 1 to 5, characterized in that The interconnection assembly further comprises a telescopic assembly (500), and along the axial direction of the connecting short section (200), the telescopic assembly (500) has two states: an extension state and a contraction state; The telescopic assembly (500) is inserted into the connecting short section (200), and is respectively connected to the two flow guide bodies (310), and is also respectively electrically connected to the two first connectors (320).

7. The interconnection assembly according to claim 6, characterized in that The telescopic assembly (500) comprises an inner sleeve (510), an outer sleeve (520), a sliding sleeve (530) and a fixed sleeve (540); The inner sleeve (510) is inserted into the outer sleeve (520) and forms an annular channel with the outer sleeve (520); One end portion of the outer sleeve (520) is threadedly connected to the inner sleeve (510); The sliding cylinder (530) is inserted into the annular channel and can slide along the axial direction of the annular channel. The end of the sliding cylinder (530) outside the annular channel is threadedly connected to the fixed cylinder (540).

8. The interconnection assembly according to claim 7, characterized in that A first fixing nut (550) is provided in the inner sleeve (510), and the first fixing nut (550) is threadedly connected to the inner sleeve (510); A second fixing nut (560) is provided in the fixing cylinder (540), and the second fixing nut (560) is threadedly connected to the fixing cylinder (540); The second fixing nut (560) and the first fixing nut (550) are both distributed outside the two ends of the sliding cylinder (530).

9. The interconnection assembly according to claim 7, characterized in that The telescopic assembly (500) further comprises a dustproof ring (570) and a U-shaped sealing ring (580), wherein the dustproof ring (570) and the U-shaped sealing ring (580) are embedded in the inner wall of the other end of the outer sleeve (520) and are both in contact with the outer wall of the sliding cylinder (530).

10. A multi-parameter measurement while drilling instrument, characterized in that: Comprising an interconnection assembly as claimed in any one of claims 1 to 9.

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