Spiral winding type optical fiber composite cable fixed connector connected to tail end of oil well pump hanger
Technical Field
The utility model relates to a spiral winding type optical fiber composite cable fixing connector which is matched with a photoelectric composite cable connector and a spiral winding type optical fiber composite cable connector and is connected to the tail end of an oil well pump hanger.
Background
The spiral winding type optical fiber composite cable fixing connector is mainly used for centering and fixing connection of a photoelectric composite cable connector and a spiral winding type optical fiber composite cable connector, and the spiral winding type optical fiber composite cable can be used for semi-permanent monitoring or permanent monitoring of parameters such as temperature, pressure, flow velocity, vibration, sound wave, strain and the like in a ground or oil field development well.
At present, the time for testing the spiral winding type optical fiber composite cable in a ground or oil field development well is short abroad, and reports of related technologies are few; the spiral wound optical fiber composite cable fixing connector has the advantages that the spiral wound optical fiber composite cable fixing connector has little reports on related technologies such as the spiral wound optical fiber composite cable fixing connector and the like; however, the similar technology has the advantages that the optical cable tubing clip can be used as a reference, the optical cable tubing clip mainly has two forms of a buckle type clip and a pin type clip, wherein the buckle type clip is convenient to use, high in reliability and more in application, the pin type clip is slightly troublesome to use and also has some applications, the two optical cable tubing clips are used underground in an oil field, are fixed on the outer wall of an oil pipe along with an optical cable and are used for permanent monitoring, the fixed optical cable can only be located on the outer wall of the oil pipe and cannot be fixed in the middle due to the limitation of factors such as a structure, the optical cable tubing clip has different defects and defects, mainly bears small axial tension, is generally between 50 kg and 100 kg, cannot be fixed in the middle and cannot meet the test requirement of permanent monitoring in the middle fixing mode of the existing spiral wound optical fiber composite cable.
The spiral winding type optical fiber composite cable fixing connector is a connector fixed in the middle. The fixed connector can be used for the centered fixed connection of the photoelectric composite cable connector and the spiral wound optical fiber composite cable connector, can bear a large axial tension which is generally 3000 kg to 4000 kg, has the characteristics of reliable connection, rapidness, convenience and the like, and can solve the problems of centered fixation and large axial tension fixation of the photoelectric composite cable connector and the spiral wound optical fiber composite cable connector.
The purpose of the utility model
The utility model aims to provide a spiral winding type optical fiber composite cable fixing connector which is matched with a photoelectric composite cable connector and a spiral winding type optical fiber composite cable connector and is connected to the tail end of an oil well pump hanger. The spiral winding type optical fiber composite cable matched and connected with the fixed connector can be used for semi-permanent monitoring or permanent monitoring of parameters such as temperature, pressure, flow rate, vibration, sound wave, strain and the like in a ground or oil field development well, so that the defects that optical cables fixed by the existing buckle type optical cable oil pipe clamp and the existing pin type optical cable oil pipe clamp can only be positioned on the outer wall of an oil pipe, cannot be fixed in the middle, and the borne axial tension is small and the like are overcome. By using the fixed connector, the following effects can be achieved: the fixed connector can be used for the centering fixed connection of the photoelectric composite cable connector and the spiral winding type optical fiber composite cable connector, can bear larger axial tension, and solves the centering fixing and larger axial tension fixing problems of the photoelectric composite cable connector and the spiral winding type optical fiber composite cable connector.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects that the optical cable fixed by the existing buckle type optical cable and oil pipe clamp and the existing pin type optical cable and oil pipe clamp can only be positioned on the outer wall of an oil pipe, can not be fixed in the middle and bears smaller axial tension, the utility model provides a spiral winding type optical fiber composite cable fixed connector which is matched with a photoelectric composite cable connector and a spiral winding type optical fiber composite cable connector and is connected to the tail end of an oil well pump hanger.
The utility model can solve the problems by the following technical scheme: the spiral winding type optical fiber composite cable fixed connector connected to the tail end of the oil well pump hanger comprises an oil well pump hanger sieve tube, a fixed connecting sleeve, a photoelectric composite cable connector, a fixed short joint, an O-shaped sealing ring I, O-shaped sealing ring II, a connecting cap, a spiral winding type optical fiber composite cable connector and a spiral winding type optical fiber composite cable. The oil well pump hanging sieve tube is a water-through device matched and connected with the lower end of the oil well pump hanging sieve tube and is a finished product, the inner pipe thread at the upper end of the oil well pump hanging sieve tube is in threaded connection with the outer pipe thread of the lower short joint of the oil well pump, and the inner pipe thread at the lower end of the oil well pump hanging sieve tube is in threaded connection with the outer pipe thread at the upper end of the fixed connecting sleeve; the fixed connecting sleeve is tubular and can be reformed by an oil pipe, the inner aperture of the fixed connecting sleeve is consistent with the inner aperture of the oil pipe, the outer pipe thread at the upper end of the fixed connecting sleeve is in threaded connection with the inner pipe thread at the lower end of the oil well pump hanging sieve pipe, the middle part of the fixed connecting sleeve is provided with a strip waist-shaped groove A, the length of the waist-shaped groove A is consistent with that of the photoelectric composite cable connector, and the inner thread at the lower end and the sealing ring surface of the fixed short joint are in threaded sealing connection with the outer thread at the upper end of the fixed short joint, the sealing ring surface and the O-shaped sealing ring I; the photoelectric composite cable is a finished product and can be matched and connected with a photoelectric composite cable connector, and the optical fiber of the photoelectric composite cable is used for optical signal transmission, and the conducting wire of the photoelectric composite cable is used for electric signal transmission; the photoelectric composite cable connector is a finished product, can be used for optical fiber welding and wire connection of a photoelectric composite cable, and can bear larger axial tension; the fixed short joint is in a shape of an inverted frustum tube, the inner aperture of the fixed short joint is consistent with the outer diameter of the spiral wound optical fiber composite cable connector, the external thread and the sealing ring surface on the upper end surface are in threaded sealing connection with the internal thread and the sealing ring surface on the lower end of the fixed connecting sleeve and the O-shaped sealing ring I, the middle part of the sealing ring is provided with an inverted cone, the external thread and the sealing ring surface of the lower end surface of the inverted cone are in threaded sealing connection with the internal thread and the sealing ring surface of the upper end of the connecting cap and the O-shaped sealing ring II, the end part of the external thread at the lower end of the connector is provided with a key groove B, the size, the number and the direction of the key groove B are consistent with those of a radial positioning key of the middle lower end of an outer cylinder sleeve on the spiral winding type optical fiber composite cable connector, and the radial positioning key is inserted into the key groove B to play a role in radial positioning and prevent a fixed short circuit and the outer cylinder sleeve on the spiral winding type optical fiber composite cable connector from radially rotating to twist off optical fibers and wires in the outer cylinder sleeve; the O-shaped sealing ring I is used for sealing and fixing the connecting sleeve and the fixed short joint, the sealing refers to the sealing between the two O-shaped sealing rings I, and the sealing and fixing form can ensure that the outer thread of the upper end surface of the fixed short joint and the inner thread of the lower end of the fixed connecting sleeve are not buckled under a higher pressure environment; the O-shaped sealing ring II is used for fixing the sealing fixation between the short joint and the connecting cap, the sealing refers to the sealing between the two O-shaped sealing rings II, and the sealing fixation mode can ensure that the thread outside the lower end surface of the short joint and the inner thread at the upper end of the connecting cap are not buckled under a higher pressure environment; the connecting cap is in a pipe sleeve shape, the minimum inner bore diameter of the connecting cap is consistent with the outer diameter of the lower end of an outer cylinder sleeve on the spiral wound optical fiber composite cable connector sleeved inside the connecting cap, the upper end of the connecting cap is provided with internal threads, a sealing ring surface is in threaded sealing connection with external threads of the lower end surface of a fixed short joint, the sealing ring surface and an O-shaped sealing ring II, the axial position of the connecting cap is limited on the lower end surface of a convex hoop C of the outer cylinder sleeve on the spiral wound optical fiber composite cable connector, and the connecting cap can rotate along the outer surface of the outer cylinder sleeve and axially slide downwards; the spiral winding type optical fiber composite cable connector is a finished product and is a connector matched with the spiral winding type optical fiber composite cable and the photoelectric composite cable connector; the spiral winding type optical fiber composite cable is a finished product and can be used for permanently monitoring parameters such as temperature, pressure, flow rate, vibration, sound wave, strain and the like in a ground or oil field development well.
Compared with the prior art, the utility model has the following beneficial effects:
by adopting the scheme, the spiral winding type optical fiber composite cable fixed connector is equivalent to a suspension type fixed connector, the fixed connector is in threaded connection with the inner pipe thread at the lower end of the oil well pump hanging screen pipe through screwing the outer pipe thread at the upper end of the fixed connecting sleeve, and the fixed connector is suspended and fixed at the lower end of the oil well pump hanging screen pipe in the middle, so that larger axial tension can be borne; the combined body of the connected photoelectric composite cable and the photoelectric composite cable connector penetrates into the inner cavity of the combined body of the fixed connecting sleeve and the fixed short circuit from a middle strip waist-shaped groove A of the fixed connecting sleeve, then is screwed and connected with the combined body of the connected spiral wound optical fiber composite cable and the spiral wound optical fiber composite cable connector into a whole, a radial positioning key on an outer cylinder sleeve on the spiral wound optical fiber composite cable connector is inserted into a key groove B at the lower end part of the fixed short circuit to play a role of radial positioning, the outer cylinder sleeve on the fixed short circuit and the spiral wound optical fiber composite cable connector is prevented from radially rotating to twist off optical fibers and conducting wires in the outer cylinder sleeve, meanwhile, the upper end of a raised hoop C of the outer cylinder sleeve on the spiral wound optical fiber composite cable connector is axially positioned at the lower port of the fixed short circuit, and then an upper end internal thread and a sealing ring surface of a connecting cap are screwed to enable the upper end external thread, a sealing ring surface of the upper end surface of the fixed short circuit and the outer cylinder sleeve, The sealing ring surface and the O-shaped sealing ring are in threaded sealing connection, and the axial position of the connecting cap is limited on the lower end face of the raised hoop C of the outer cylinder sleeve on the spiral wound optical fiber composite cable connector, so that the fixed connector is fixedly connected with the photoelectric composite cable connector and the spiral wound optical fiber composite cable connector in the middle. The spiral winding type optical fiber composite cable fixing connector solves the problems of centering fixation and larger axial tension fixation of a photoelectric composite cable connector and a spiral winding type optical fiber composite cable connector, and overcomes the defects of the existing buckle type optical cable oil pipe clamp and pin type optical cable oil pipe clamp.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
FIG. 1 is a schematic view of the installation of the present spirally wound optical fiber composite cable fixing connector;
fig. 2 is a front view of the fixed connection sleeve of fig. 1;
FIG. 3 is a front view of the fixed short of FIG. 1;
FIG. 4 is a front view of the connector cap of FIG. 1;
in the figure, 1-an oil well pump hanging sieve tube, 2-a fixed connecting sleeve, 3-a photoelectric composite cable, 4-a photoelectric composite cable connector, 5-a fixed short circuit, 6-O-shaped sealing rings I, 7-O-shaped sealing rings II, 8-a connecting cap, 9-a spiral winding type optical fiber composite cable connector, 10-a spiral winding type optical fiber composite cable, A-a long strip waist-shaped groove in the middle of the fixed connecting sleeve 2, B-a key groove at the end part of an external thread at the lower end of the fixed short circuit 5, and C-a convex hoop of an outer cylinder sleeve on the spiral winding type optical fiber composite cable connector 9.
Detailed Description
In order to make the objects, 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 with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-4, the spiral winding type optical fiber composite cable fixing connector connected to the tail end of the oil well pump hanger comprises an oil well pump hanger sieve tube 1, a fixing connecting sleeve 2, an optical-electrical composite cable 3, an optical-electrical composite cable connector 4, a fixing short circuit 5, an O-shaped sealing ring I6, an O-shaped sealing ring II7, a connecting cap 8, a spiral winding type optical fiber composite cable connector 9 and a spiral winding type optical fiber composite cable 10. The oil well pump hanging screen pipe 1 is a water-through device matched and connected with the lower end of the oil well pump hanging screen pipe and is a finished product, the inner pipe thread of the upper end of the oil well pump hanging screen pipe is in threaded connection with the outer pipe thread of the lower end short joint of the oil well pump, and the inner pipe thread of the lower end of the oil well pump hanging screen pipe is in threaded connection with the outer pipe thread of the upper end of the fixed connecting sleeve 2; the fixed connecting sleeve 2 is tubular and can be reformed by an oil pipe, the inner aperture of the fixed connecting sleeve is consistent with the inner aperture of the oil pipe, the outer pipe thread at the upper end of the fixed connecting sleeve is in threaded connection with the inner pipe thread at the lower end of the oil well pump hanging screen pipe 1, the middle part of the fixed connecting sleeve is provided with a strip waist-shaped groove A, the length of the waist-shaped groove A is consistent with that of the photoelectric composite cable connector 4, and the inner thread and the sealing ring surface at the lower end of the fixed connecting sleeve are in threaded sealing connection with the outer thread and the sealing ring surface at the upper end of the fixed short joint 5 and the O-shaped sealing ring I6; the photoelectric composite cable 3 is a finished product and can be matched and connected with the photoelectric composite cable connector 4, and the optical fiber of the photoelectric composite cable is used for optical signal transmission, and the conducting wire is used for electric signal transmission; the photoelectric composite cable connector 4 is a finished product, can be used for optical fiber welding and wire connection of the photoelectric composite cable 3, and can bear larger axial tension; the fixed short joint 5 is in the shape of an inverted frustum tube, the inner aperture of the fixed short joint is consistent with the outer diameter of the spiral wound optical fiber composite cable connector 9, the external thread and the sealing ring surface on the upper end surface are in threaded sealing connection with the internal thread and the sealing ring surface on the lower end of the fixed connecting sleeve 2 and the O-shaped sealing ring I6, the middle part of the connecting cap is provided with an inverted cone, the external thread and the sealing ring surface of the lower end surface of the inverted cone are in threaded sealing connection with the internal thread and the sealing ring surface of the upper end of the connecting cap 8 and the O-shaped sealing ring II7, the end part of the external thread at the lower end is provided with a key groove B, the size, the number and the direction of the key groove B are consistent with those of a radial positioning key of the middle lower end of an outer cylinder sleeve on the spiral winding type optical fiber composite cable connector 9, and the radial positioning key is inserted into the key groove B to play a role in radial positioning and prevent the fixed short circuit 5 and the outer cylinder sleeve on the spiral winding type optical fiber composite cable connector 9 from radially rotating to twist off the optical fiber and the lead in the fixed short circuit 5 and the outer cylinder sleeve; the O-shaped sealing ring I6 is used for sealing and fixing the fixed connecting sleeve 2 and the fixed short joint 5, the sealing refers to the sealing between two O-shaped sealing rings I6, and the sealing and fixing form can ensure that the outer thread of the upper end surface of the fixed short joint 5 and the inner thread of the lower end of the fixed connecting sleeve 2 are not buckled under a high-pressure environment; the O-shaped sealing ring II7 is used for fixing the short joint 5 and the connecting cap 8 in a sealing manner, the sealing means the sealing between two O-shaped sealing rings II7, and the sealing fixing manner can ensure that the external thread at the lower end of the short joint 5 and the internal thread at the upper end of the connecting cap 8 are not buckled under a high-pressure environment; the connecting cap 8 is in a pipe sleeve shape, the minimum inner aperture of the lower end of the connecting cap is consistent with the outer diameter of the lower end of an outer cylinder sleeve on a spiral wound optical fiber composite cable connector 9 sleeved inside the connecting cap, the upper end of the connecting cap is provided with internal threads, a sealing ring surface is in threaded sealing connection with the external threads of the lower end surface of the fixed short joint 5, the sealing ring surface and an O-shaped sealing ring II7, the axial position of the connecting cap 8 is limited on the lower end surface of a raised hoop C of the outer cylinder sleeve on the spiral wound optical fiber composite cable connector 9, and the connecting cap can rotate along the outer surface of the outer cylinder sleeve and axially slide downwards; the spiral winding type optical fiber composite cable connector 9 is a finished product and is a connector matched with the spiral winding type optical fiber composite cable 10 and the photoelectric composite cable connector 4 for use; the spiral wound optical fiber composite cable 10 is a finished product and can be used for permanently monitoring parameters such as temperature, pressure, flow rate, vibration, sound wave, strain and the like in a ground or oil field development well.
The following details the connection and installation process of the spiral wound optical fiber composite cable fixing connector, the optical-electrical composite cable connector and the spiral wound optical fiber composite cable connector according to fig. 1: firstly, a fixed connecting sleeve 2 and a fixed short joint 5 which is sleeved with an O-shaped sealing ring I6 and an O-shaped sealing ring II7 are connected into a combination body, then a photoelectric composite cable 3 and a photoelectric composite cable connector 4 are connected and installed into the combination body, and a spiral winding type optical fiber composite cable 10 and a spiral winding type optical fiber composite cable connector 9 which is sleeved with a connecting cap 8 are connected into another combination body for subsequent connection; then, the upper end outer pipe thread of the fixed connecting sleeve 2 on the combination of the fixed connecting sleeve 2 and the fixed short joint 5 is in threaded connection with the lower end inner pipe thread of the oil well pump hanging sieve pipe 1, and the middle part of the outer pipe thread is suspended and fixed at the lower end of the oil well pump hanging sieve pipe 1; then the combined body of the photoelectric composite cable 3 and the photoelectric composite cable connector 4 is penetrated into the inner cavity of the combined body of the fixed connecting sleeve 2 and the fixed short circuit 5 from the middle waist-shaped groove A of the fixed connecting sleeve 2 and is led out from the lower end of the fixed short circuit 5, then the optical fiber fusion between the photoelectric composite cable connector 4 and the spiral winding type optical fiber composite cable connector 9 is carried out, the conducting wire is connected, and then the lower end connector of the combined body of the photoelectric composite cable 3 and the photoelectric composite cable connector 4 is screwed and connected with the upper end connector of the combined body of the spiral winding type optical fiber composite cable 10 and the spiral winding type optical fiber composite cable connector 9 into a whole; then a radial positioning key on the outer sleeve of the spiral winding type optical fiber composite cable connector 9 is inserted into a key groove B at the lower end part of the fixed short circuit 5, meanwhile, the upper end of the raised hoop C of the outer cylinder sleeve on the spiral winding type optical fiber composite cable connector 9 is axially positioned at the lower port of the fixed short joint 5, the internal thread and the sealing ring surface at the upper end of the connecting cap 8 are screwed to be in threaded sealing connection with the external thread and the sealing ring surface at the lower end of the fixed short joint 5 and the O-shaped sealing ring II7, the axial position of the connecting cap 8 is limited at the lower end surface of the raised hoop C of the outer cylinder sleeve on the spiral winding type optical fiber composite cable connector 9, the connecting cap 8 can rotate along the outer surface of the outer cylinder sleeve and axially slide downwards, the fixed connector, the photoelectric composite cable connector and the spiral wound optical fiber composite cable connector are fixedly connected and installed in the middle through the implementation mode.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.