Simulation verification device for optical cable bin logging while drilling and application method of simulation verification device

Abstract

The invention relates to the technical field of well drilling, and provides a simulation verification device for optical cable bin logging while drilling and an application method thereof.The simulation verification device comprises a base, a mounting frame, a testing pipe, a lifting appliance and a circulating pump set, the mounting frame is arranged on the base, and the angle of the mounting frame is adjustable; the test tube is arranged on the mounting rack, and the top end of the test tube is open; the lifting appliance is arranged on the base, and the lifting end of the lifting appliance extends to the mounting frame and corresponds to the opening of the test tube; and a water outlet and a water inlet of the circulating pump set are both communicated with the test pipe. According to the invention, the circulating pump set is arranged and can supply water into the test tube, so that the erosion test can be carried out after the optical cable bin is arranged in the test tube; wherein the lifting appliance is used for driving the optical cable bin to move up and down so as to simulate the movement in the drill rod, and the state of the optical cable bin is observed synchronously; the device not only can perform static test on the optical cable bin, but also can perform dynamic test, and is simple in overall structure and comprehensive in detection.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling, and particularly relates to a simulation verification device for a fiber optic cable storage bin in logging while drilling and an application method thereof. Background Art

[0002] The fiber optic communication technology while drilling is an advanced communication technology used in the oil and gas industry. The fiber optic measurement method while drilling can solve the problems of slow communication speed, small communication capacity, and high cost of existing measurement devices while drilling at home and abroad, promote the development of intelligent drilling and completion technology, and provide strong technical support for the safe and efficient development of complex oil and gas resources.

[0003] The existing patent application with publication number CN107143328A discloses a fiber optic communication device while drilling, including: a rotating wireless transceiver module; the rotating wireless transceiver module is fixed on the protector; by drilling holes in the protector, the active antenna of the rotating wireless transceiver module is placed into the first drill pipe; the fiber optic communication winch is located at the top position of the second drill pipe, and the fiber optic cable released downward is placed into other drill pipes in the well, and the lower part of the fiber optic cable is connected with a bottom hole wireless receiving module; the lowermost part of the drill pipe is a drilling and production data acquisition device and a bottom hole wireless transmitting module.

[0004] In the above technical solution, the fiber optic cable is placed in the drill pipe for information transmission work. However, when the drill pipe is working, it will be accompanied by vibration and rotation, and at the same time, mud will flow through the inside of the drill pipe. These factors all have a significant impact on the stability of the fiber optic cable; in the above solution, the fiber optic cable is wound by a winch, and the winch is located outside the drill pipe; but in order to ensure the convenience of application, a new technology sets up an independent storage bin, and the storage bin is directly placed in the drill pipe. To ensure reliable application, a special device is needed to conduct a stability assessment test on the storage bin for winding the fiber optic cable. Summary of the Invention

[0005] In view of this, the present invention provides a simulation verification device for a fiber optic cable storage bin in logging while drilling that can perform erosion detection on the storage bin and an application method thereof to understand the performance of the fiber optic cable storage bin, so as to ensure the application stability of the fiber optic cable storage bin in the drill pipe.

[0006] The technical solution of the present invention is realized as follows:

[0007] On the one hand, the present invention provides a simulation verification device for a fiber optic cable storage bin in logging while drilling, including a base, a mounting frame, a test pipe, a sling, and a circulation pump set, wherein,

[0008] The mounting frame is arranged on the base, and the angle of the mounting frame is adjustable;

[0009] The test pipe is arranged on the mounting frame, and the top of the test pipe is open;

[0010] The lifting device is arranged on the base, and the lifting end of the lifting device extends to the mounting frame and corresponds to the opening of the test pipe;

[0011] The water outlet and water inlet of the circulating pump group are both connected to the test pipe.

[0012] On the basis of the above technical solution, preferably, it further includes a hinge support, a connecting plate and a connecting rod. Among them,

[0013] The hinge support is arranged on the base, and the mounting frame is connected to the hinge support;

[0014] The connecting plate is arranged on the base, and a number of mounting holes are provided on the connecting plate;

[0015] One end of the connecting rod is connected to the mounting frame, and the other end is connected to the mounting hole on the connecting plate through a fastener.

[0016] On the basis of the above technical solution, preferably, the test pipe includes a pipe rack, a pipe body and a plug. Among them,

[0017] The pipe rack is connected to the mounting frame;

[0018] The pipe body is connected to the pipe rack;

[0019] The plug is detachably arranged at the bottom end of the pipe body. The pipe orifice where the circulating pump group is connected to the pipe body is located on the side of the pipe body. The plug partially extends into the pipe body, and an arc surface is provided corresponding to the pipe orifice.

[0020] On the basis of the above technical solution, preferably, the circulating pump group includes a water pump and a water storage bucket. Among them,

[0021] The water inlet of the water pump is connected to the water storage bucket, and the water outlet of the water pump is connected to the top end of the pipe body;

[0022] The bottom end of the pipe body is connected to the water storage bucket.

[0023] On the basis of the above technical solution, preferably, the pipe body includes an acrylic pipe, a male adapter and a female adapter. Among them,

[0024] The acrylic pipe is provided with multiple sections;

[0025] The male adapter is threadedly connected to one section of the acrylic pipe;

[0026] One end of the female adapter is threadedly connected to the male adapter, and the other end is threadedly connected to another section of the acrylic pipe;

[0027] The pipe rack is connected to the female adapter.

[0028] On the basis of the above technical solution, preferably, one end of the pipe body is a male adapter and the other end is a female adapter; the water outlet of the water pump is connected to the male adapter;

[0029] The female adapter is communicated with the water storage bucket; the plug is connected to the female adapter.

[0030] On the basis of the above technical solution, preferably, it further includes a connecting seat and an elastic member, wherein,

[0031] The connecting seat is connected to the plug and extends into the pipe body;

[0032] One end of the elastic member is connected to the connecting seat, and the other end is used to connect the optical cable wire bin.

[0033] On the basis of the above technical solution, preferably, the connecting seat is a stepped columnar structure and penetrates through the plug.

[0034] On the basis of the above technical solution, preferably, the hoisting device includes a winch, a pulley and a sling, wherein,

[0035] The winch is arranged on the base;

[0036] The pulley is arranged on the mounting frame;

[0037] The sling is connected to the winch and is lapped on the pulley.

[0038] On the other hand, the present invention provides an application method of the above-mentioned simulation verification device for the optical cable wire bin while drilling logging, including the following steps:

[0039] S1. Hoist the optical cable wire bin through the hoisting device and send it into the inside of the test pipe;

[0040] S2. Start the circulating pump group to send water into the test pipe for erosion test and recycle the water to realize water flow circulation;

[0041] S3. Drive the optical cable wire bin to move up and down through the hoisting device and observe whether the optical cable wire bin is stable.

[0042] The simulation verification device for the optical cable wire bin while drilling logging and its application method of the present invention have the following beneficial effects compared with the prior art:

[0043] (1) By setting the circulating pump group, it can send water into the test pipe. After the optical cable wire bin is placed in the test pipe, the erosion test can be carried out. The hoisting device is used to drive the optical cable wire bin to move up and down to simulate the movement of the optical cable wire bin in the drill pipe, and the state of the optical cable wire bin can be observed synchronously. In this way, the device can not only perform static tests on the optical cable wire bin, but also perform dynamic tests, and its overall structure is simple and the detection is comprehensive;

[0044] (2) The mounting frame is connected to the base through a hinge support, a connecting plate and a connecting rod. A number of mounting holes are provided on the connecting plate. In this way, the angle of the mounting frame can be adjusted through the hinge support, and then it can be connected and locked with the connecting plate through the connecting rod, so as to achieve the adjustment of the angle and further improve the comprehensiveness of the detection.

[0045] (3) A plug is provided at the bottom end of the test tube. In this way, when performing a small amount of water erosion detection, the plug is installed and the water flow is recycled through the circulating pump group. When performing a large amount of water erosion test, the plug can be removed to facilitate the discharge of water flow. At the same time, a connecting seat and an elastic member are provided on the plug. In this way, one end of the optical cable line bin far away from the hoist can be connected to the elastic member, so as to cooperate with the hoist to fix the optical cable line bin, thereby simulating the anchoring state of the optical cable line bin in the drill pipe, thus increasing the comprehensiveness of the detection. At the same time, it will not interfere with the hoist to drive the optical cable line bin to move. Description of the Drawings

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0047] Figure 1 It is the front view of the simulation verification device for logging while drilling of the cable bin of the present invention;

[0048] Figure 2 It is the three-dimensional view of the simulation verification device for logging while drilling of the cable bin of the present invention;

[0049] Figure 3 It is the exploded structure view of the pipe body of the simulation verification device for logging while drilling of the cable bin of the present invention;

[0050] Figure 4 It is the installation structure view of the elastic member of the simulation verification device for logging while drilling of the cable bin of the present invention;

[0051] In the figure: 1, base; 2, mounting frame; 3, test tube; 31, pipe rack; 32, pipe body; 321, acrylic pipe; 322, male adapter; 323, female adapter; 33, plug; 301, arc surface; 4, hoist; 41, winch; 42, pulley; 43, sling; 5, circulating pump group; 51, water pump; 52, water storage bucket; 6, hinge support; 7, connecting plate; 8, connecting rod; 9, connecting seat; 10, elastic member. Detailed Embodiments

[0052] The following will describe the technical solutions in the embodiments of the present invention clearly and completely in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0053] As Figures 1 to 4 shown, the simulation verification device for wireline logging of the cable storage bin of the present invention includes a base 1, a mounting frame 2, a test tube 3, a sling 4, a circulation pump group 5, a hinge support 6, a connecting plate 7, a connecting rod 8, a connecting seat 9, and an elastic member 10.

[0054] In the fiber optic logging-while-drilling technology, the optical fiber is encapsulated to form an optical cable, which is wound on a wireline storage bin and then sent into the drill pipe to connect to a sensor for information transmission; this simulation verification device is used to test the structural stability of the optical cable wireline storage bin and observe whether problems such as damage and optical cable dispersion occur under the erosion state.

[0055] As Figure 1 and Figure 2 shown, the mounting frame 2 is arranged on the base 1, and the angle of the mounting frame 2 is adjustable; the test tube 3 is arranged on the mounting frame 2, and the top of the test tube 3 is open; the sling 4 is arranged on the base 1, and the lifting end of the sling 4 extends to the mounting frame 2 and corresponds to the opening of the test tube 3; the water outlet and water inlet of the circulation pump group 5 are both communicated with the test tube 3.

[0056] In the above structure, during application, the optical cable wireline storage bin is lifted by the sling 4 and then sent in through the top opening of the test tube 3. Subsequently, the circulation pump group 5 works to supply water into the test tube 3 to erode the optical cable wireline storage bin for relevant test work.

[0057] During the erosion process, water flows into the test tube 3 from the upper end and flows out from the lower end, thus flowing back to the circulation pump group 5.

[0058] Among them, the angle of the mounting frame 2 is adjustable to simulate the test work at different inclination angles, which is beneficial to restoring the real application scenario, ensuring the detection is in line with the actual situation, and improving the accuracy and comprehensiveness of the detection.

[0059] As Figure 2 shown, the hinge support 6 is arranged on the base 1, and the mounting frame 2 is connected to the hinge support 6; the connecting plate 7 is arranged on the base 1, and a number of mounting holes are provided on the connecting plate 7; one end of the connecting rod 8 is connected to the mounting frame 2, and the other end is connected to the mounting hole on the connecting plate 7 through a fastener.

[0060] In the above structure, the mounting bracket 2 is connected to the base 1 through the hinge support 6, the connecting plate 7 and the connecting rod 8. A number of mounting holes are provided on the connecting plate 7. In this way, the angle of the mounting bracket 2 can be adjusted through the hinge support 6, and then it can be connected and locked with the connecting plate 7 through the connecting rod 8 to achieve the adjustment of the angle.

[0061] Among them, a plurality of connecting rods 8 are provided. In this way, after the angle of the mounting bracket 2 is adjusted in place, a connecting rod 8 with a suitable length can be selected to be connected and fixed to the mounting hole on the connecting plate 7.

[0062] As Figure 2 and Figure 4 shown, the test tube 3 includes a tube rack 31, a tube body 32 and a plug 33. Among them, the tube rack 31 is connected to the mounting bracket 2; the tube body 32 is connected to the tube rack 31; the plug 33 is detachably arranged at the bottom end of the tube body 32. The pipe orifice of the circulating pump group 5 communicating with the tube body 32 is located on the side of the tube body 32. The plug 33 partially extends into the tube body 32, and an arc surface 301 is provided corresponding to the pipe orifice.

[0063] In the above structure, the plug 33 is used to block the bottom end of the tube body 32, and an arc surface 301 is provided on the plug 33. In this way, when the water flows downward through the test tube 3, the arc surface 301 will guide the water flow so that the water flows out through the side pipe orifice and then enters the circulating pump group 5, which can improve the smoothness of water circulation.

[0064] Specifically, the plug 33 is connected in a detachable manner. In this way, when performing a small amount of water erosion detection, the plug 33 is installed, and the water is recycled through the circulating pump group 5; while in the case of a large amount of water erosion test, the plug 33 can be removed to facilitate the discharge of water.

[0065] As Figure 1 shown, the circulating pump group 5 includes a water pump 51 and a water storage bucket 52. Among them, the water inlet of the water pump 51 is communicated with the water storage bucket 52, and the water outlet of the water pump 51 is communicated with the top end of the tube body 32; the bottom end of the tube body 32 is communicated with the water storage bucket 52.

[0066] In the above structure, during the erosion test, the water pump 51 pumps water from the water storage bucket 52, and then sends the water into the tube body 32 to perform the erosion test on the optical cable line bin. Subsequently, the water flows out from the lower end of the tube body 32 and returns to the water storage bucket 52.

[0067] In some embodiments, a water storage pool is provided at the lower part of the test tube 3 for storing erosion water.

[0068] As Figure 2As shown, the pipe body 32 includes an acrylic pipe 321, a male swivel joint 322, and a female swivel joint 323. Among them, the acrylic pipe 321 is provided with multiple sections; the male swivel joint 322 is threadedly connected to one section of the acrylic pipe 321; one end of the female swivel joint 323 is threadedly connected to the male swivel joint 322, and the other end is threadedly connected to another section of the acrylic pipe 321; the pipe support 31 is connected to the female swivel joint 323;

[0069] With the above structure, the pipe body 32 is provided with an acrylic pipe 321, so that during the erosion test, it is convenient to observe the internal optical cable line compartment, so as to understand the state of the optical cable line compartment;

[0070] Among them, the acrylic pipe 321 is provided with multiple sections and is connected through the male swivel joint 322 and the female swivel joint 323, so as to facilitate disassembly, installation and maintenance;

[0071] At the same time, it is directly connected to the pipe support 31 through the female swivel joint 323, so as to avoid the problem of damage to the pipe body 32 caused during fastening.

[0072] As Figure 2 shown, one end of the pipe body 32 is a male swivel joint 322, and the other end is a female swivel joint 323; the water outlet of the water pump 51 is communicated with the male swivel joint 322; the female swivel joint 323 is communicated with the water storage bucket 52; the plug 33 is connected to the female swivel joint 323;

[0073] With the above structure, the male swivel joint 322 and the female swivel joint 323 are arranged at the ends of the pipe body 32, which facilitates the connection of the pipeline connected to the circulating pump group 5, and at the same time can avoid damage caused by collision when feeding into the optical cable line compartment, and is convenient for assembling the plug 33.

[0074] As Figure 3 shown, the connecting seat 9 is connected to the plug 33 and extends into the pipe body 32; one end of the elastic member 10 is connected to the connecting seat 9, and the other end is used to connect the optical cable line compartment;

[0075] With the above structure, by providing the connecting seat 9 and the elastic member 10 on the plug 33, the end of the optical cable line compartment far from the spreader 4 can be connected to the elastic member 10, so as to cooperate with the spreader to fix the optical cable line compartment, thereby simulating the anchoring state of the optical cable line compartment in the drill pipe, which increases the comprehensiveness of the detection, and the elastic member 10 can be telescoped without interfering with the spreader 4 to drive the optical cable line compartment to move;

[0076] At the same time, when the installation frame 2 is adjusted in angle, due to the traction of the elastic member 10, even if the test pipe 3 is in an inclined state, the optical cable line compartment will not contact the inner wall of the test pipe 3, so as to ensure that the test state conforms to the actual application state.

[0077] Specifically, the connecting seat 9 and the plug 33 are detachably connected, such as by screw thread engagement, so as to facilitate the removal of the connecting seat 9 when the optical cable line bin does not need to be fixed, thereby avoiding interfering with the outflow of water to one side;

[0078] Specifically, when removing the connecting seat 9, select a suitable plug to block the hole where the connecting seat 9 is installed to avoid affecting the normal flow of the discharged water.

[0079] Specifically, the connecting seat 9 has a stepped columnar structure and penetrates through the plug 33;

[0080] In the above structure, the connecting seat 9 has a stepped columnar structure. Its small-diameter end penetrates through the plug 33, and the large-diameter section abuts against the bottom surface of the plug 33, and is fixed by fasteners such as bolts. In this way, it is convenient to disassemble and observe the state of the elastic member 10, and it is also convenient to connect with the optical cable line bin.

[0081] As Figure 2 shown, the lifting tool 4 includes a winch 41, a pulley 42 and a sling 43. Among them, the winch 41 is arranged on the base 1; the pulley 42 is arranged on the mounting frame 2; the sling 43 is connected to the winch 41 and is lapped on the pulley 42;

[0082] In the above structure, the winch 41 of the lifting tool is used to wind up the sling 43, thereby driving the optical cable line bin to move to simulate the movement of the optical cable line bin in the drill pipe; the pulley 42 is used to support the sling 43.

[0083] The application method of the simulation verification device for the optical cable line bin in the logging-while-drilling of the present invention includes the following steps:

[0084] S1. Lift the optical cable line bin by the lifting tool 4 and send it into the interior of the test pipe 3;

[0085] S2. Start the circulating pump group 5 to send water into the test pipe 3 for erosion testing and recover the water to realize water circulation;

[0086] S3. Drive the optical cable line bin to move up and down by the lifting tool 4 and observe whether the optical cable line bin is stable.

[0087] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A simulation verification device for optical cable silo logging while drilling, characterized in that: It comprises a base (1), a mounting frame (2), a test pipe (3), a hanger (4) and a circulation pump group (5), wherein: The mounting frame (2) is arranged on the base (1), and the angle of the mounting frame (2) is adjustable; The test tube (3) is arranged on the mounting frame (2), and the top end of the test tube (3) is open; The hanger (4) is arranged on the base (1), and a hanging end of the hanger (4) extends to the mounting frame (2) and corresponds to an opening of the test tube (3); The water outlet and the water inlet of the circulation pump group (5) are both connected to the test pipe (3).

2. The simulation verification device for logging while drilling of an optical cable silo as claimed in claim 1, characterized in that: It also includes a hinge support (6), a connecting plate (7) and a connecting rod (8), wherein: The hinge support (6) is arranged on the base (1), and the mounting frame (2) is connected to the hinge support (6); The connecting plate (7) is arranged on the base (1), and a plurality of mounting holes are provided on the connecting plate (7); One end of the connecting rod (8) is connected to the mounting frame (2), and the other end is connected to the mounting hole on the connecting plate (7) via a fastener.

3. The simulation verification device for logging while drilling of an optical cable silo as claimed in claim 2, characterized in that: The test tube (3) comprises a tube rack (31), a tube body (32) and a plug (33), wherein: The pipe rack (31) is connected to the mounting rack (2); The pipe body (32) is connected to the pipe rack (31); The plug (33) is detachably arranged on the bottom end of the tube body (32); the pipe opening through which the circulation pump group (5) communicates with the tube body (32) is located on the side of the tube body (32); the plug (33) partially extends into the tube body (32) and is provided with an arc surface (301) corresponding to the pipe opening.

4. The simulation verification device for logging while drilling of an optical cable silo as claimed in claim 3, characterized in that: The circulating pump group (5) comprises a water pump (51) and a water storage bucket (52), wherein: The water inlet of the water pump (51) is connected to the water storage bucket (52), and the water outlet of the water pump (51) is connected to the top end of the pipe body (32); The bottom end of the tube body (32) is connected to the water storage bucket (52).

5. The simulation verification device for logging while drilling of an optical cable silo as claimed in claim 4, characterized in that: The tube body (32) comprises an acrylic tube (321), a male adapter (322) and a female adapter (323), wherein: The acrylic tube (321) is provided with multiple sections; The male connector (322) is screwed and connected to a section of the acrylic tube (321) via a thread; One end of the female adapter (323) is screwed to the male adapter (322) through a thread, and the other end is screwed to another section of the acrylic tube (321) through a thread; The pipe rack (31) is connected to the female adapter (323).

6. The simulation verification device for logging while drilling of an optical cable silo as claimed in claim 5, characterized in that: One end of the tube body (32) is the male adapter (322), and the other end is the female adapter (323); The water outlet of the water pump (51) is in communication with the male connector (322); The female adapter (323) is connected to the water storage bucket (52); The plug (33) is connected to the female adapter (323).

7. The simulation verification device for logging while drilling of an optical cable silo as claimed in claim 3 or 4, characterized in that: It also includes a connecting seat (9) and an elastic member (10), wherein: The connecting seat (9) is connected to the plug (33) and extends into the tube body (32); One end of the elastic member (10) is connected to the connecting seat (9), and the other end is used to connect to the optical cable bin.

8. The simulation verification device for logging while drilling of an optical cable silo as claimed in claim 7, characterized in that: The connecting seat (9) is a stepped columnar structure and passes through the plug (33).

9. The simulation verification device for logging while drilling of an optical cable silo according to any one of claims 1 to 6, characterized in that: The sling (4) comprises a winch (41), a pulley (42) and a sling (43), wherein: The winch (41) is arranged on the base (1); The pulley (42) is arranged on the mounting frame (2); The sling (43) is connected to the winch (41) and is overlapped on the pulley (42).

10. An application method of the optical cable silo logging while drilling simulation verification device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, hoisting the optical cable bin through the hoist (4) and placing it into the interior of the test tube (3); S2, turning on the circulation pump group (5) to deliver water into the test tube (3) to perform erosion testing, and recycling the water to achieve water circulation; S3, driving the optical cable bin to move up and down by means of the lifting device (4), and observing whether the optical cable bin is stable.

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