CN108222917B - Special tool for rotary auxiliary logging-while-drilling tool combination and use method - Google Patents
Special tool for rotary auxiliary logging-while-drilling tool combination and use method Download PDFInfo
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- CN108222917B CN108222917B CN201810193106.6A CN201810193106A CN108222917B CN 108222917 B CN108222917 B CN 108222917B CN 201810193106 A CN201810193106 A CN 201810193106A CN 108222917 B CN108222917 B CN 108222917B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
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Abstract
The invention discloses a special tool for rotary auxiliary logging-while-drilling tool combination and a use method thereof, wherein the special tool comprises an upper connector, a fastening block, balls, a lower connector and a rotary connecting shaft, wherein the upper connector is movably connected with the lower connector through the rotary connecting shaft, the upper connector is connected with a top drive elevator, the lower connector is connected with the logging-while-drilling tool, and when the logging-while-drilling tool is combined, the lower connector and the logging-while-drilling tool can be easily driven by chain tongs and rotated to carry out threading and threading, and finally the lower connector and the logging-while-drilling tool are fastened to corresponding torque by using large tongs to complete the combination operation. The invention can ensure that the logging while drilling tool body is not damaged in the bottom drilling tool assembly operation, effectively avoids the risk of tripping caused by relative reversal of the lifting nipple and the logging while drilling tool in the bottom drilling tool assembly operation process, and solves the low-timeliness problem caused by replacement of the logging while drilling tool due to screw thread damage caused by cross-threading during the assembly operation.
Description
Technical Field
The invention belongs to the technical field of drilling engineering of petroleum, natural gas and other resources, and particularly relates to a special tool for rotary auxiliary logging-while-drilling tool combination and a use method thereof.
Background
Before drilling operation, the bottom drilling tool is assembled by using a top drive at a drill floor and then is lowered into the well to perform drilling operation. The bottom hole assembly has some tools with high price, precise instruments and less spare tools, such as logging while drilling tools, geological edge detection tools and the like, special care needs to be taken in combination operation, and the combination operation is generally required to be carried out without using iron drillers, hydraulic tongs, turnbuckle tongs and the like. At present, a chain clamp is generally used for clamping a logging while drilling tool body, an operator pushes the chain clamp to drive the logging while drilling tool to rotate for leading and setting up, and the following defects are overcome: 1) The cross-threading is very easy, the weight of the whole drilling tool is required to be pressed on a wellhead, the friction resistance is very high, the cross-threading is very easy to damage or even damage due to the overlarge pressure between the contact surfaces of the threads when the chain tongs are used for pushing the drilling tool to rotate, and a new tool is required to be replaced, so that the time efficiency is low; meanwhile, logging while drilling tools are high in price, generally few standby tools exist, even no standby tools exist, and the operation is forced to stop; 2) The top drive elevator is buckled on the lifting nipple, the lifting nipple is connected with the logging while drilling tool, part of weight is still hung on the top drive elevator in the operation process so as to cause that the friction resistance between the top drive elevator and the lifting nipple is increased, so that no relative rotation is generated between the top drive elevator and the lifting nipple, the lifting nipple and the logging while drilling tool generate relative rotation, the reverse buckling causes falling off to injure operators, and even a drilling tool falls into a well, thereby causing a 'fish' accident; 3) In order to prevent back-off, the weight of the whole logging while drilling tool is pressed at a wellhead, and the difficulty in pushing the logging while drilling tool by an operator through a chain wrench is generally 5-6 people, the chain wrench is pushed together, the operator is not well standing, the operator is easy to fall down, the operation safety is difficult to ensure, the labor intensity is too high, and the operation time efficiency is extremely low. Therefore, it is necessary to invent a special tool for rotary auxiliary logging-while-drilling tool combination, the whole logging-while-drilling tool is not required to be pressed on a wellhead in the operation process, but most of the weight of the logging-while-drilling tool is continuously hung on a top drive elevator, and a very small amount of weight is released to be pressed on the wellhead for leading the buckle, so that the damage of the screw buckle caused by the staggered buckle due to the overlarge pressure between the screw buckles is avoided; the special tool for the rotary auxiliary logging-while-drilling tool combination can greatly reduce the rotary friction resistance, reduce the number of operators and lighten the operation intensity when the operators push chain tongs to drive the logging-while-drilling tool to rotate; because the tool is extremely easy to rotate, the tool is rotated in the reverse direction before the button-guiding operation to confirm positive button and then rotated in the forward direction to guide the button, so that the risk of cross button is avoided; because the special tool can rotate, relative rotation between the special tool and the logging while drilling tool can be avoided, and further the risk of the reverse buckle falling off and smashing injury to operators and 'fish' accident is avoided, so that the operation risk is greatly reduced, the operation efficiency is improved, and the operation cost is reduced.
Disclosure of Invention
In order to solve the defects in the prior art, the special tool for rotary auxiliary logging while drilling tool combination and the use method thereof are provided, and the tool is a tool for assisting bottom precision instrument combination, can avoid cross-buckling and back-buckling, and realizes safe and efficient bottom drilling tool combination.
In order to solve the technical problems, the invention adopts the following technical scheme:
the special tool for the rotary auxiliary logging while drilling tool combination comprises an upper connector, a fastening block, balls, a lower connector and a rotary connecting shaft, wherein the upper connector is movably connected with the lower connector through the rotary connecting shaft;
the upper joint is matched with the top drive elevator, the length is 0.5-1 m, the wall thickness is 1.5in, a hollow upper joint center hole is formed in the upper joint center hole, a step is formed in the bottom end of the upper joint center hole, a center connecting hole is formed in the step, and an annular ball groove is formed in the upper end face of the step; the rotary connecting shaft consists of an upper cylinder and a lower cylinder, the diameter of the upper cylinder is larger than that of the lower cylinder, the whole upper cylinder is T-shaped, the upper cylinder is 10cm high, the outer diameter of the upper cylinder is matched with the aperture of the central hole of the upper joint, and the rotary connecting shaft can rotate in the central hole of the upper joint; the lower end surface of the upper cylinder of the rotary connecting shaft is provided with an annular ball groove which corresponds to the ball groove on the upper end surface of the upper joint step; the ball size is matched with the ball groove sizes on the upper joint and the rotary connecting shaft, the ball is arranged in the ball groove corresponding to the upper end face of the step of the central hole of the upper joint and the lower end face of the upper cylinder of the rotary connecting shaft, and a rolling bearing is formed by the lower end face of the upper cylinder of the rotary connecting shaft, the ball and the upper end face of the step of the bottom of the central hole of the upper joint; the middle position of the central hole of the upper joint is provided with an internal thread, the fastening block is a solid cylinder and is 5-10 cm thick, the outer surface of the fastening block is provided with threads which are matched with the internal thread of the central hole of the upper joint, the distance between the rotary connecting shaft and the fastening block is kept at about 5mm, and the fastening block is fastened in the internal thread of the central hole of the upper joint through external threads; the center of the upper end face of the lower joint is provided with a lower joint threaded hole with the depth of about 50cm, and the lower joint threaded hole is matched with threads on a lower cylinder of the rotary connecting shaft; the lower cylinder of the rotary connecting shaft is about 50cm long, the outer diameter of the lower cylinder is matched with the step center connecting hole of the center hole of the upper joint and the threaded hole of the lower joint, and the lower end of the lower cylinder of the rotary connecting shaft is provided with threads at a distance of 20-30 cm and is in threaded connection with the threaded hole of the lower joint; and at least one limiting rod hole is formed in the corresponding position of the lower cylinder of the rotary connecting shaft and the corresponding position of the lower joint respectively and is used for inserting a limiting rod, the limiting rod is a strip cylinder, and the size of the limiting rod is matched with that of the limiting rod hole.
The length of the lower joint is about 1m, the outer diameter of the lower joint is matched with that of the upper joint, and the lower end buckle type is matched with that of a logging while drilling tool to be connected.
12-24 balls are uniformly distributed in the ball grooves.
The application method of the special tool for the rotary auxiliary logging-while-drilling tool combination comprises the following steps of:
1) Preparing: (1) smearing butter on the threads of the central hole in the upper joint in advance; (2) smearing butter on the screw thread of the fastening block in advance; (3) grease is smeared in a ball groove in the upper joint in advance; (4) smearing butter on the ball grooves of the rotary connecting shaft in advance; (5) smearing butter outside the limiting rod in advance; (6) smearing butter on the threads at the lower end of the rotary connecting shaft in advance; (7) smearing butter in the threaded hole of the lower joint in advance; (8) confirming that the upper joint buckling type is matched with the top drive elevator buckling type in advance; (9) confirming that the lower joint buckling type is matched with the logging while drilling tool buckling type in advance;
2) And (3) installing a tool: (1) the balls are uniformly distributed in the ball grooves in the upper joint; (2) inserting the rotary connecting shaft into the central hole of the upper joint, so that the ball grooves on the rotary connecting shaft, the balls and the ball grooves in the upper joint are matched to form a rolling bearing; (3) inserting a fastening block into the central hole of the upper joint, and tightening threads; (4) the center threaded hole of the lower joint is connected with the lower end of the rotary connecting shaft in a threaded manner; (5) inserting a limiting rod into a limiting rod hole on the lower joint and the rotary connecting shaft;
3) Combining logging while drilling tools: (1) connecting the lower joint of the special tool of the installed rotary auxiliary logging-while-drilling tool combination with the logging-while-drilling tool; (2) the top drive elevator buckles the upper joint of the special tool for the combination of the rotary auxiliary logging while drilling tool; (3) the top drive ascends, and the logging while drilling tool is lifted to the position right above the wellhead; (4) the engineer checks and cleans the joint and smears special screw thread oil; (5) the top drive slowly descends, and the logging while drilling tool is buckled and contacted with a lower drilling tool hung at a wellhead; (6) looking at the suspended weight meter, continuously and slowly descending the top drive, and stopping descending by reducing the suspended weight by 0.1-0.2 t, wherein the top drive elevator bears most of the weight of the logging-while-drilling tool at the moment; (7) the operator buckles the chain tongs on the logging while drilling tool body, reversely rotates the positive buckle, confirms the positive buckle, slowly rotates the positive buckle, and slowly descends the top drive according to the change of the suspended weight until the weight of the whole logging while drilling tool is released; (8) the operator removes the chain tongs, buckles the large tongs at the appointed position at the lower end of the logging while drilling tool body to carry out buckling operation, and buckles the tool to the specified torque; (9) the operator removes the large tongs and the logging while drilling tool completes the combination;
4) Dismantling a special tool: (1) after the logging while drilling tool is assembled, the top drive is moved upwards, the whole bottom drilling tool assembly is lifted, the wellhead slips are lifted, and the top drive is moved downwards to the slip sitting position of the logging while drilling tool; (2) setting the slips, and setting the safety slips; (3) the top drive descends, the weight is completely released, the elevator is opened, and the elevator is removed from the joint at the upper part of the special tool combined with the rotary auxiliary logging-while-drilling tool; (4) the operator buckles the chain tongs on the lower joint of the special tool for assisting the combination of the logging-while-drilling tool, reversely loosens the hole, and simultaneously ties the upper joint by using the hanging belt, and the pneumatic winch slowly lifts up to separate the lower joint of the special tool from the logging-while-drilling tool.
The invention has the following advantages:
the invention can ensure that the logging-while-drilling tool body is not damaged in the bottom drilling tool assembly operation, effectively avoids the risk of tripping caused by relative reversal of the lifting nipple and the logging-while-drilling tool in the bottom drilling tool assembly operation process, and solves the low-timeliness problem caused by replacement of the logging-while-drilling tool due to screw thread damage caused by cross-threading in the assembly operation; the structure is simple, the processing is convenient, the investment cost is low, and the device can be repeatedly used; the application prospect is good, and the method can be widely used for bottom drilling tool combination operation; the method has the advantages of simple field operation, high efficiency and no operation risk.
Drawings
FIG. 1 is a schematic diagram of the front structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic cross-sectional view of a lower joint according to the present invention;
fig. 4 is a top view of the upper joint and ball assembly of the present invention.
In the figure: 1-upper joint; 2-fastening blocks; 3-balls; 4-limiting rod holes; 5-lower joint; 6-rotating the connecting shaft; 7-an upper joint central bore; 8 lower joint threaded holes.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1 to 4, a special tool for rotary auxiliary logging while drilling tool combination comprises an upper joint 1, a fastening block 2, balls 3, a lower joint 5 and a rotary connecting shaft 6, wherein the upper joint 1 and the lower joint 5 are movably connected through the rotary connecting shaft 6, the upper joint 1 is matched with a top drive elevator, the length is 0.5-1 m, the wall thickness is 1.5in, a hollow upper joint central hole 7 is arranged in the upper joint 1, a step is arranged at the bottom end of the upper joint central hole 7, a central connecting hole is arranged on the step, and an annular ball groove is arranged on the upper end surface of the step; the rotary connecting shaft 6 consists of an upper cylinder and a lower cylinder, the diameter of the upper cylinder is larger than that of the lower cylinder, the whole upper cylinder is T-shaped, the height of the upper cylinder is 10cm, the outer diameter of the upper cylinder is matched with the aperture of the central hole 7 of the upper joint, and the rotary connecting shaft 6 can rotate in the central hole 7 of the upper joint; the lower end surface of the upper cylinder of the rotary connecting shaft 6 is provided with an annular ball groove which corresponds to the ball groove on the upper end surface of the step of the upper joint 1; the size of the ball 3 is matched with the sizes of the ball grooves on the upper joint 1 and the rotary connecting shaft 6, the ball 3 is arranged in a ball groove corresponding to the upper end face of the step of the central hole 7 of the upper joint and the lower end face of the upper cylinder of the rotary connecting shaft 6, 12-24 balls 3 are uniformly distributed in the ball groove, and a rolling bearing is formed by the lower end face of the upper cylinder of the rotary connecting shaft 6 and the ball 3 as well as the upper end face of the step at the bottom of the central hole 7 of the upper joint, so that sliding friction is converted into rolling friction, friction resistance is reduced, and labor intensity of operators is reduced; the middle position of the central hole 7 of the upper joint is provided with an internal thread, the fastening block 2 is a solid cylinder and has a thickness of 5-10 cm, the external surface of the fastening block 2 is provided with threads which are matched with the internal thread of the central hole 7 of the upper joint, the distance between the rotary connecting shaft 6 and the fastening block 2 is kept about 5mm, and the fastening block 2 is fastened in the internal thread of the central hole 7 of the upper joint through the external thread, so that the relative movement of the rotary connecting shaft 6 and the upper joint 1 in the vertical direction can be limited; the center of the upper end surface of the lower joint 5 is provided with a lower joint threaded hole 8 with the depth of about 50cm, and the lower joint threaded hole 8 is matched with threads on a lower cylinder of the rotary connecting shaft 6; the lower cylinder of the rotary connecting shaft 6 is about 50cm long, the outer diameter of the lower cylinder is matched with the step center connecting hole of the upper joint center hole 7 and the lower joint threaded hole 8, and the lower end of the lower cylinder of the rotary connecting shaft 6 is provided with threads at a position 20-30 cm away from the lower end and in threaded connection with the lower joint threaded hole 8; the lower cylinder of the rotary connecting shaft 6 is provided with at least one limiting rod hole 4 corresponding to the lower joint 5 for inserting a limiting rod, the limiting rod is a strip cylinder, the size of the limiting rod is matched with that of the limiting rod hole 4, after the limiting rod is inserted into the limiting rod hole 4, the lower joint 5 and the rotary connecting shaft 6 are limited to move vertically and circumferentially relatively, the length of the lower joint 5 is about 1m, the outer diameter of the lower joint is matched with that of the upper joint 1, and the lower end of the lower joint is matched with that of a logging-while-drilling tool to be connected.
The application method of the special tool for the rotary auxiliary logging-while-drilling tool combination comprises the following steps of:
1) Preparing: (1) smearing butter on the threads of the central hole in the upper joint in advance; (2) smearing butter on the screw thread of the fastening block in advance; (3) grease is smeared in a ball groove in the upper joint in advance; (4) smearing butter on the ball grooves of the rotary connecting shaft in advance; (5) smearing butter outside the limiting rod in advance; (6) smearing butter on the threads at the lower end of the rotary connecting shaft in advance; (7) smearing butter in the threaded hole of the lower joint in advance; (8) confirming that the upper joint buckling type is matched with the top drive elevator buckling type in advance; (9) confirming that the lower joint buckling type is matched with the logging while drilling tool buckling type in advance;
2) And (3) installing a tool: (1) the balls are uniformly distributed in the ball grooves in the upper joint; (2) inserting the rotary connecting shaft into the central hole in the upper joint, so that the ball grooves on the rotary connecting shaft, the balls and the ball grooves in the upper joint are matched to form a rolling bearing; (3) inserting a fastening block into the central hole in the upper joint and tightening threads; (4) the center threaded hole of the lower joint is connected with the lower end of the rotary connecting shaft in a threaded manner; (5) inserting a limiting rod into a limiting rod hole on the lower joint and the rotary connecting shaft;
3) Combining logging while drilling tools: (1) connecting the lower joint of the special tool of the installed rotary auxiliary logging-while-drilling tool combination with the logging-while-drilling tool; (2) the top drive elevator buckles the upper joint of the special tool for the combination of the rotary auxiliary logging while drilling tool; (3) the top drive ascends, and the logging while drilling tool is lifted to the position right above the wellhead; (4) the engineer checks and cleans the joint and smears special screw thread oil; (5) the top drive slowly descends, and the logging while drilling tool is buckled and contacted with a lower drilling tool hung at a wellhead; (6) looking at the suspended weight meter, continuously and slowly descending the top drive, and stopping descending by reducing the suspended weight by 0.1-0.2 t, wherein the top drive elevator bears most of the weight of the logging-while-drilling tool at the moment; (7) the operator buckles the chain tongs on the logging while drilling tool body, reversely rotates the positive buckle, confirms the positive buckle, slowly rotates the positive buckle, and slowly descends the top drive according to the change of the suspended weight until the weight of the whole logging while drilling tool is released; (8) the operator removes the chain tongs, buckles the large tongs at the appointed position at the lower end of the logging while drilling tool body to carry out buckling operation, and buckles the tool to the specified torque; (9) the operator removes the large tongs and the logging while drilling tool completes the combination;
4) Dismantling a special tool: (1) after the logging while drilling tool is assembled, the top drive is moved upwards, the whole bottom drilling tool assembly is lifted, the wellhead slips are lifted, and the top drive is moved downwards to the slip sitting position of the logging while drilling tool; (2) setting the slips, and setting the safety slips; (3) the top drive descends, the weight is completely released, the elevator is opened, and the elevator is removed from the joint at the upper part of the special tool combined with the rotary auxiliary logging-while-drilling tool; (4) the operator buckles the chain tongs on the lower joint of the special tool for assisting the combination of the logging-while-drilling tool, reversely loosens the hole, and simultaneously ties the upper joint by using the hanging belt, and the pneumatic winch slowly lifts up to separate the lower joint of the special tool from the logging-while-drilling tool.
The invention is not limited to the specific forms disclosed above, but rather, it should be understood that the invention is not limited to particular forms disclosed, but is capable of modification and substitution in accordance with the teachings of the present invention by those skilled in the art without departing from the spirit and scope of the present invention.
Claims (4)
1. A special tool for rotary auxiliary logging while drilling tool combination, which is characterized in that: the device comprises an upper joint (1), a fastening block (2), balls (3), a lower joint (5) and a rotary connecting shaft (6), wherein the upper joint (1) and the lower joint (5) are movably connected through the rotary connecting shaft (6);
the upper joint (1) is matched with the top drive elevator, the length is 0.5-1 m, the wall thickness is 1.5in, a hollow upper joint center hole (7) is formed in the upper joint center hole (7), a step is formed in the bottom end of the upper joint center hole (7), a center connecting hole is formed in the step, and an annular ball groove is formed in the upper end face of the step; the rotary connecting shaft (6) consists of an upper cylinder and a lower cylinder, the diameter of the upper cylinder is larger than that of the lower cylinder, the whole upper cylinder is T-shaped, the height of the upper cylinder is 10cm, the outer diameter of the upper cylinder is matched with the aperture of the central hole (7) of the upper joint, and the rotary connecting shaft (6) rotates in the central hole (7) of the upper joint; the lower end surface of the upper cylinder of the rotary connecting shaft (6) is provided with an annular ball groove which corresponds to the ball groove on the upper end surface of the step of the upper joint (1); the size of the ball (3) is matched with the sizes of ball grooves on the upper joint (1) and the rotary connecting shaft (6), the ball (3) is arranged in a ball groove corresponding to the upper end face of a step of the central hole (7) of the upper joint and the lower end face of an upper cylinder of the rotary connecting shaft (6), and a rolling bearing is formed by the lower end face of the upper cylinder of the rotary connecting shaft (6) and the upper end faces of the balls (3) and the steps at the bottoms of the central holes (7) of the upper joint; the middle position of the upper joint center hole (7) is provided with an internal thread, the fastening block (2) is a solid cylinder and is 5-10 cm thick, the external surface of the fastening block (2) is provided with threads which are matched with the internal thread of the upper joint center hole (7), the distance between the rotary connecting shaft (6) and the fastening block (2) is kept at about 5mm, and the fastening block (2) is fastened in the internal thread of the upper joint center hole (7) through external threads; the center of the upper end surface of the lower joint (5) is provided with a lower joint threaded hole (8) with the depth of about 50cm, and the lower joint threaded hole (8) is matched with threads on a lower cylinder of the rotary connecting shaft (6); the length of the lower cylinder of the rotary connecting shaft (6) is about 50cm, the outer diameter of the lower cylinder is matched with the step center connecting hole of the upper joint center hole (7) and the lower joint threaded hole (8), and the lower end of the lower cylinder of the rotary connecting shaft (6) is provided with threads at a distance of 20-30 cm and is in threaded connection with the lower joint threaded hole (8); the lower cylinder of the rotary connecting shaft (6) and the corresponding position of the lower joint (5) are respectively provided with at least one limiting rod hole (4) for inserting a limiting rod, wherein the limiting rod is a strip cylinder, and the size of the limiting rod is matched with that of the limiting rod hole (4).
2. The special tool for a rotary-assisted logging-while-drilling tool assembly of claim 1, wherein: the length of the lower joint (5) is about 1m, the outer diameter of the lower joint is matched with that of the upper joint (1), and the lower end buckle type is matched with that of a logging-while-drilling tool to be connected.
3. The special tool for a rotary-assisted logging-while-drilling tool assembly of claim 1, wherein: 12-24 balls (3) are uniformly distributed in the ball grooves.
4. A method for using a special tool for rotary auxiliary logging-while-drilling tool combination, using the special tool for rotary auxiliary logging-while-drilling tool combination as claimed in claim 1 or 2 or 3, characterized in that: the method comprises the following steps:
1) Preparing: (1) smearing butter on the threads of the central hole in the upper joint in advance; (2) smearing butter on the screw thread of the fastening block in advance; (3) grease is smeared in a ball groove in the upper joint in advance; (4) smearing butter on the ball grooves of the rotary connecting shaft in advance; (5) smearing butter outside the limiting rod in advance; (6) smearing butter on the threads at the lower end of the rotary connecting shaft in advance; (7) smearing butter in the threaded hole of the lower joint in advance; (8) confirming that the upper joint buckling type is matched with the top drive elevator buckling type in advance; (9) confirming that the lower joint buckling type is matched with the logging while drilling tool buckling type in advance;
2) And (3) installing a tool: (1) the balls are uniformly distributed in the ball grooves in the upper joint; (2) inserting the rotary connecting shaft into the central hole of the upper joint, so that the ball grooves on the rotary connecting shaft, the balls and the ball grooves in the upper joint are matched to form a rolling bearing; (3) inserting a fastening block into the central hole of the upper joint, and tightening threads; (4) the center threaded hole of the lower joint is connected with the lower end of the rotary connecting shaft in a threaded manner; (5) inserting a limiting rod into a limiting rod hole on the lower joint and the rotary connecting shaft;
3) Combining logging while drilling tools: (1) connecting the lower joint of the special tool of the installed rotary auxiliary logging-while-drilling tool combination with the logging-while-drilling tool; (2) the top drive elevator buckles the upper joint of the special tool for the combination of the rotary auxiliary logging while drilling tool; (3) the top drive ascends, and the logging while drilling tool is lifted to the position right above the wellhead; (4) the engineer checks and cleans the joint and smears special screw thread oil; (5) the top drive slowly descends, and the logging while drilling tool is buckled and contacted with a lower drilling tool hung at a wellhead; (6) looking at the suspended weight meter, continuously and slowly descending the top drive, and stopping descending by reducing the suspended weight by 0.1-0.2 t, wherein the top drive elevator bears most of the weight of the logging-while-drilling tool at the moment; (7) the operator buckles the chain tongs on the logging while drilling tool body, reversely rotates the positive buckle, confirms the positive buckle, slowly rotates the positive buckle, and slowly descends the top drive according to the change of the suspended weight until the weight of the whole logging while drilling tool is released; (8) the operator removes the chain tongs, buckles the large tongs at the appointed position at the lower end of the logging while drilling tool body to carry out buckling operation, and buckles the tool body to the specified torque; (9) the operator removes the large tongs and the logging while drilling tool completes the combination;
4) Dismantling a special tool: (1) after the logging while drilling tool is assembled, the top drive is moved upwards, the whole bottom drilling tool assembly is lifted, the wellhead slips are lifted, and the top drive is moved downwards to the slip sitting position of the logging while drilling tool; (2) setting the slips, and setting the safety slips; (3) the top drive descends, the weight is completely released, the elevator is opened, and the elevator is removed from the joint at the upper part of the special tool combined with the rotary auxiliary logging-while-drilling tool; (4) the operator buckles the chain tongs on the lower joint of the special tool for assisting the combination of the logging-while-drilling tool, reversely loosens the hole, and simultaneously ties the upper joint by using the hanging belt, and the pneumatic winch slowly lifts up to separate the lower joint of the special tool from the logging-while-drilling tool.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810193106.6A CN108222917B (en) | 2018-03-09 | 2018-03-09 | Special tool for rotary auxiliary logging-while-drilling tool combination and use method |
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| CN201810193106.6A CN108222917B (en) | 2018-03-09 | 2018-03-09 | Special tool for rotary auxiliary logging-while-drilling tool combination and use method |
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| CN108222917B true CN108222917B (en) | 2023-05-23 |
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| CN109973078B (en) * | 2019-03-26 | 2022-11-01 | 香港中文大学(深圳)城市地下空间及能源研究院 | Auxiliary MWD high-efficiency well entering tool |
| CN111206886A (en) * | 2020-01-17 | 2020-05-29 | 广州海洋地质调查局 | A drill string suspension method for deep offshore drilling drilling operations |
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| GB459782A (en) * | 1935-06-14 | 1937-01-14 | Anglo Iranian Oil Co Ltd | Improvements relating to couplings for conveying rotary motion |
| WO1998029637A1 (en) * | 1996-12-31 | 1998-07-09 | Helms Charles M | Lockable swivel apparatus and method |
| CN202596585U (en) * | 2012-05-15 | 2012-12-12 | 中国石油天然气集团公司 | Energy-storage protection tool for mechanical drilling tool |
| WO2016060683A1 (en) * | 2014-10-17 | 2016-04-21 | Halliburton Energy Services, Inc. | Rotary steerable system |
| CN107503696A (en) * | 2017-08-15 | 2017-12-22 | 中国海洋石油总公司 | Shackle device and upper shackle method in auxiliary |
| CN208040373U (en) * | 2018-03-09 | 2018-11-02 | 中海石油(中国)有限公司湛江分公司 | A kind of specific purpose tool of rotary auxiliary LWD tool combination |
-
2018
- 2018-03-09 CN CN201810193106.6A patent/CN108222917B/en active Active
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| CN108222917A (en) | 2018-06-29 |
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