CN203271609U - Sensing logging instrument and pressure-bearing joint for mud resistivity survey - Google Patents
Sensing logging instrument and pressure-bearing joint for mud resistivity survey Download PDFInfo
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- CN203271609U CN203271609U CN 201220423651 CN201220423651U CN203271609U CN 203271609 U CN203271609 U CN 203271609U CN 201220423651 CN201220423651 CN 201220423651 CN 201220423651 U CN201220423651 U CN 201220423651U CN 203271609 U CN203271609 U CN 203271609U
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Abstract
The utility model relates to a pressure-bearing joint for a mud resistivity survey of a sensing logging instrument. The pressure-bearing joint comprises a pressure-bearing joint body, a first multi-core sealing plug, a mud resistivity pole plate, a screwed plug and a second multi-core sealing plug, wherein one end of the pressure-bearing joint body is connected with an electronic circuit iron pipe and the other end is connected with a probe iron pipe; the pressure-bearing joint body is provided with a cavity; the first multi-core sealing plug is disposed in a first access formed between the electronic circuit iron pipe and the probe iron pipe; the mud resistivity pole plate measures mud resistivity and is arranged in a first sealing hole; the first sealing hole extends inwardly from the external surface of the pressure-bearing joint body and is sealed with the pressure-bearing joint body via a second sealing ring; the screwed plug injects oil to a second access and is arranged in a second sealing hole; the second sealing hole extends inwardly from the external surface of the pressure-bearing joint body and is connected with the first sealing hole and the other end via the second access; one end of the second multi-core sealing plug is connected with the second access; the other end of the multi-core sealing plug is connected with the cavity; and the multi-core sealing plug is sealed with the pressure- bearing joint body via a fourth sealing ring.
Description
Technical field
The utility model relates to a kind of pressure-bearing joint, relates more specifically in oil well logging instrument to be used for to connect the pressure-bearing joint with mud resistivity measurement function in induction logging instrument HTHP probe section and electric wire highway section.
Background technology
In oil field prospecting and development process, well logging is determine and estimate one of important means of oil, gas-bearing formation, is also the important means that solves a series of geological problems.It can be directly provides every data and data for petroleum geology and engineers and technicians.As required, people have developed various loggers such as acoustic logging instrument, induction log tool and dipmeter tool etc. and petrophysical parameter and the Engineering technical parameters of various auxiliary well logging pipe nipples to obtain various stratum.These loggers must have high temperature resistant, high voltage bearing performance due to (for example, when the degree of depth to 7000 m of down-hole, temperature can reach 175 ℃, and pressure reaches 140 MPa) under the adverse circumstances that are operated in high temperature, high pressure.
Array induction logging tool is to grow up on the basis of common induction logging instrument, and this instrument has certain radially detectivity.Instrument adopts the coil array of a series of different coil spacings that same stratum is measured, and then focus on by hardware or software and process the formation conductivity that obtains different radials depth of investigetion, thus identification of hydrocarbon layer effectively.
Existing logger mostly adopts resistant to elevated temperatures components and parts or material to realize the resistance to elevated temperatures of instrument, and also useful vacuum flask is realized the resistance to elevated temperatures of instrument; Simultaneously, logger (being in particular HTHP probe section) will bear high pressure in the down-hole, damages because of high pressure for fear of instrument, in the place of logger insufficient strength, just needs high pressure resistant design.In the situation that select the high material of intensity still can not meet the demands, keeping the internal and external pressure balance of instrument is the effective ways that prevent that instrument from being damaged by pressure.At present, the method for equilibrium pressure is mainly to annotate silicone oil in instrument, realizes the high voltage performance of instrument by the internal and external pressure balance that keeps instrument.
The electric wire highway section gathers probe signal and transmits, and is built-in with circuit board so that the signal that gathers is processed, and wherein the environment stress in electric wire highway section is 1 atmospheric pressure.In addition, also need mud resistivity is measured in during well logging.Because the mud resistivity measurement mechanism is generally the nonmetal basal body member, work in high temperature and high pressure environment for making it, also need carry out pressure balance.
Therefore, for guaranteeing the reliably working of induction logging instrument under above-mentioned high temperature and high pressure environment, need a kind of mud resistivity to measure pressure-bearing joint, this mud resistivity is measured pressure-bearing joint and is connected HTHP probe section and electronic circuit normal pressure section, realize the isolation of high-low pressure, realize simultaneously the reliable measurements of mud resistivity.
The utility model content
The purpose of this utility model is to provide in a kind of oil well logging instrument the mud resistivity measurement pressure-bearing joint that is used for connecting induction logging instrument HTHP probe section and electric wire highway section.
Under the technical condition prerequisite that satisfies the use of mud resistivity measurement pressure-bearing joint, the utility model adopts novel frame for movement that the pressure-bearing joint with mud resistivity measurement function is provided, solve mud resistivity and measure the problems such as pressure-bearing joint processed complex, production cycle length, improve yield rate and the reliability of component, reduce production costs.
According to one side of the present utility model, the pressure-bearing joint that provides a kind of mud resistivity for induction logging instrument to measure, this pressure-bearing joint comprises: pressure-bearing joint body, an end connecting electronic circuit iron pipe of described pressure-bearing joint body and have a cavity and the other end connects the probe iron pipe; The first multicore sealing-plug, be arranged in the first path between described electronic circuit iron pipe and described probe iron pipe and by the first sealing ring and seal to block described the first path with the pressure-bearing joint body, the electronic circuit in described electronic circuit iron pipe is connected with probe in described probe iron pipe via described the first multicore sealing-plug; Be used for measuring the mud resistivity pole plate of mud resistivity, be arranged in the first closed hole, described the first closed hole extends internally and seals with the pressure-bearing joint body by the second sealing ring from the external surface of pressure-bearing joint body; Be used for the plug to described alternate path oiling, be arranged in the second closed hole, described the second closed hole extends internally from the external surface of pressure-bearing joint body, be communicated with described the first closed hole and the described other end via the alternate path different from the first path, and seal with the pressure-bearing joint body by the 3rd sealing ring; And the second multicore sealing-plug, one end of described the second multicore sealing-plug is communicated with described alternate path and the other end is communicated with described cavity and by the 4th sealing ring with pressure-bearing joint body sealing, the holding wire of described mud resistivity pole plate is connected to via described the second multicore sealing-plug the common circuit board that described electronic circuit is connected to.
According on the other hand of the present utility model, described the second multicore sealing-plug is screwed into by the pressure-bearing plug in the 3rd closed hole of pressure-bearing joint body, and described the 3rd closed hole is communicated with described alternate path and described cavity.
According on the other hand of the present utility model, described the first multicore sealing-plug is arranged in the 4th closed hole that is in described the first path, and described the first path extends along the axis direction of pressure-bearing joint body.
According on the other hand of the present utility model, the described other end of described pressure-bearing joint body has an internal thread hole, and described internal thread hole has the half slot that extends vertically.
According on the other hand of the present utility model, the described other end of described pressure-bearing joint body provides a plurality of the 5th closed holes, described a plurality of the 5th closed hole is communicated with described cavity by corresponding path, and the 3rd multicore sealing-plug is arranged in described a plurality of the 5th closed hole and by the 5th sealing ring and seals with the pressure-bearing joint body.
According on the other hand of the present utility model, receive holding wire and be connected to described circuit board via described the 3rd multicore sealing-plug by corresponding path, and the line that transmits be connected to described probe via the first multicore sealing-plug by described the first path.
According on the other hand of the present utility model, described electronic circuit comprises and transmits line and receive at least a in holding wire.
According on the other hand of the present utility model, pressure-bearing joint further comprises: the electronic circuit wire casing, be embedded in the described cavity of described pressure-bearing joint body, described electronic circuit iron pipe passes and is inserted into an end of pressure-bearing joint body and fastening from the centre bore of described electronic circuit wire casing.
According on the other hand of the present utility model, pressure-bearing joint further comprises: the electronic circuit wire casing, be embedded in the described cavity of described pressure-bearing joint body, described electronic circuit iron pipe passes from the centre bore of described electronic circuit wire casing, and described electronic circuit wire casing has a plurality of groove spaced apart from each other to hold described reception holding wire and to have an inclined hole to hold the holding wire of described mud resistivity pole plate.
According on the other hand of the present utility model, described a plurality of grooves are a plurality of rectangular channels of circle distribution, and the entrance corner angle of described rectangular channel are by abundant cavetto.
According on the other hand of the present utility model, pressure-bearing joint further comprises: half swivel nut is enclosed within on the external surface of pressure-bearing joint body.
According on the other hand of the present utility model, described electronic circuit iron pipe is made by high magnetic permeability mild steel.
According on the other hand of the present utility model, described pressure-bearing plug has external screw thread to coordinate fastening with the pressure-bearing joint body.
According on the other hand of the present utility model, the matrix of described mud resistivity pole plate is high-temperature insulation material, the mud resistivity pole plate has the measurement electrode of concentric ring, described measurement electrode has the cone groove outward, described cone groove is positioned on the external surface of pressure-bearing joint body, the cone angle of described cone groove is the obtuse angle, and the outermost electrodes of described mud resistivity pole plate has screw thread to coordinate fastening with the pressure-bearing joint body.
According on the other hand of the present utility model, described probe iron pipe is made by high magnetic permeability mild steel
According on the other hand of the present utility model, pressure-bearing joint further comprises: relief valve seat, and connect and sealing ring is housed with the pressure-bearing joint body by screw thread, in described relief valve seat, overflow valve is housed.
According on the other hand of the present utility model, pressure-bearing joint further comprises: one-way valve seat, connect with the pressure-bearing joint body by screw thread and sealing ring is housed, the contact pin type one way valve is housed in described one-way valve seat, described one-way valve seat has a plurality of holes on circumference, described a plurality of holes are communicated with external surface and the described alternate path of pressure-bearing joint body.
According on the other hand of the present utility model, the external surface at the two ends of described pressure-bearing joint body respectively has at least one place groove, on described groove, sealing ring can be installed.
According on the other hand of the present utility model, a kind of induction logging instrument is provided, this induction logging instrument comprises electric wire highway section, pressure-bearing joint as above and probe section, wherein said pressure-bearing joint connects described electric wire highway section and described probe section, power supply, emission and Acquisition Circuit and communicating circuit for induction logging instrument are housed in the electric wire highway section, and the sensor for induction logging instrument is housed in the probe section.
Read in conjunction with the drawings the specific embodiment of back, can understand better feature and advantage of the present utility model.
Description of drawings
Explain embodiment of the present utility model now with reference to accompanying drawing.Should be noted that these embodiment are used for the diagram basic principle, make and only illustrate those features essential in order to understand basic principle.Accompanying drawing not in scale.In addition, similar label represents similar features in the accompanying drawings in the whole text.
Fig. 1 is that mud resistivity of the present utility model is measured the annexation schematic diagram of pressure-bearing joint in induction logging instrument.
Fig. 2 A is the top view that mud resistivity of the present utility model is measured pressure-bearing joint.
Fig. 2 B is the sectional view that dissects the mud resistivity pole plate that mud resistivity of the present utility model is measured pressure-bearing joint.
Fig. 2 C is the sectional view that dissects the multicore sealing-plug that mud resistivity of the present utility model is measured pressure-bearing joint.
Fig. 3 A is the right end view that mud resistivity of the present utility model is measured pressure-bearing joint.
Fig. 3 B is the radial cross-section that mud resistivity of the present utility model is measured relief valve seat, repairing plug and the one-way valve seat of pressure-bearing joint.
Fig. 4 is the stereogram that mud resistivity of the present utility model is measured the pressure-bearing joint body in pressure-bearing joint.
Fig. 5 is the stereogram that mud resistivity of the present utility model is measured the mud resistivity pole plate in pressure-bearing joint.
Fig. 6 A and 6B are respectively stereogram and the sectional views that mud resistivity of the present utility model is measured the electronic circuit wire casing in pressure-bearing joint.
Fig. 7 A and 7B are respectively top view and the sectional views that mud resistivity of the present utility model is measured the relief valve seat in pressure-bearing joint.
Fig. 8 A and 8B are respectively top view and the sectional views that mud resistivity of the present utility model is measured the one-way valve seat in pressure-bearing joint.
The specific embodiment
The following specifically describes and relate to accompanying drawing, these accompanying drawings show by diagramatic way can implement detail of the present utility model and embodiment.Fully specifically describe these embodiment to enable those skilled in the art to implement the utility model.Other embodiment can be utilized and structure, logic can be carried out and electricity changes and do not break away from scope of the present utility model.Various embodiment may not mutual exclusion, because some embodiment can make up to form new embodiment with one or more other embodiment.
With reference to the accompanying drawing of a part that forms this detailed description, show wherein by the mode that illustrates in described accompanying drawing and can put into practice specific embodiment of the utility model in the following detailed description.In this respect, the orientation of the described accompanying drawing of reference has been used the direction term such as " top ", " end ", 'fornt', 'back', " head ", " tail " etc.Because the assembly of embodiment can be positioned in several different orientation, the therefore described direction term purpose that is used to illustrate and limiting anything but.It being understood that in the situation that do not deviate from the change that scope of the present utility model can be utilized other embodiment and can make structure or logic.Therefore, following detailed description is not considered as restrictive, sense, and scope of the present utility model is limited by appended claims.
Unless it being understood that concrete Stated otherwise, otherwise the feature of each exemplary embodiment as described herein can combination with one another.It should be understood that the only unrestricted the technical solution of the utility model in order to explanation of embodiment.Although with reference to embodiment, the utility model is had been described in detail, but those of ordinary skill in the art is to be understood that: still can modify or be equal to replacement the utility model, and do not break away from spirit and scope of the present utility model, and claims are intended to contain these modifications that fall into the utility model spirit and scope or are equal to replacement.
Next, specifically explain embodiment of the present utility model with reference to accompanying drawing.
As shown in Figure 1, induction logging instrument is generally by electronic cartridge 21, the front pipe nipple 22 of putting, and pressure-bearing joint 23 and probe pipe nipple 24 form.Electronic cartridge 21 and before put power supply, emission and Acquisition Circuit and the communicating circuit that logger is housed in pipe nipple 22.The sensor of logger is housed in pressure-bearing joint 23.Electronic cartridge 21, frontly put pipe nipple 22 and pressure-bearing joint 23 is for example made for metal material, the environment stress of the outside 140Mpa of carrying; And the shell of probe pipe nipple 24 is for example made for nonmetals, and is inner by filled with silicone oil, by device, the environment stress of outside 140Mpa guided to silicone oil, guarantees that the environment stress of silicone oil and outside 140Mpa is identical.
As shown in Fig. 2 A to 2C, this pressure-bearing joint 23 comprises pressure-bearing joint body 13, an end connecting electronic circuit iron pipe 1 of described pressure-bearing joint body 13 and have a cavity and the other end connects probe iron pipe 11.This pressure-bearing joint 23 also comprises: multicore sealing-plug 9, be arranged in the first path between described electronic circuit iron pipe 1 and described probe iron pipe 11 and by sealing ring and seal to block described the first path with pressure-bearing joint body 13, the electronic circuit in described electronic circuit iron pipe 1 is connected via the interior probe of multicore sealing-plug 9 and described probe iron pipe 11.
This pressure-bearing joint 23 further comprises: the mud resistivity pole plate 7 that is used for measuring mud resistivity, be arranged in closed hole, described closed hole from the external surface of pressure-bearing joint body 13 inwardly (for example radially or incline direction) extend and by sealing ring with 13 sealings of pressure-bearing joint body; Be used for the plug 8 to described alternate path oiling, be arranged in the second closed hole, described the second closed hole extends internally from the external surface of pressure-bearing joint body 13, be communicated with closed hole and the described other end 11 via the alternate path different from the first path, and seal with pressure-bearing joint body 13 by sealing ring; And multicore sealing-plug 5, one end of described multicore sealing-plug 5 is communicated with described alternate path and the other end is communicated with described cavity and by sealing ring with pressure-bearing joint body 13 sealing, the holding wire of described mud resistivity pole plate 7 is connected to via multicore sealing-plug 5 the common circuit board that described electronic circuit is connected to.The first and second paths for example can be communicated with an end and the other end of pressure-bearing joint body 13, are arranged in pressure-bearing joint body 13, and for example can be along extending axially, but are not limited to this.
Pressure-bearing joint body 13 materials are the high magnetic permeability high-strength material, such as high magnetic permeability high strength precipitation-hardening stainless steel 17-4PH.Use this kind material can carry out electromagnetic shielding effectively to multiple signals on the one hand, can be used on the other hand carry the environment stress of 140Mpa.The left end of described pressure-bearing joint body 13 is the atmospheric air chamber that holds the electronic circuit wire casing, and right-hand member is hydraulic cavities, wherein filling silicon oil.Silicone oil pressure and mud pressure balance, maximum can reach 140Mpa.
As shown in Fig. 2 A, pressure-bearing joint body 13 two ends external surfaces respectively have two place's grooves, and described groove is seal groove, sealing ring all is installed seals, and its left sealing ring is with the electronic circuit body seal, and right sealing ring is with the nonmetals body seal.
As shown in Fig. 2 B, for example the left end of described pressure-bearing joint body 13 has a cavity that can hold electronic circuit wire casing 2, and right-hand member also has an internal thread hole that can connect instrument probe pipe nipple 24.Half slot is vertically arranged on described internal thread hole, and this half slot is that oil circuit is to guarantee that silicone oil is unimpeded in internal thread hole.Distribution a plurality of (such as 12) closed hole on the right-hand member end face of pressure-bearing joint body 13, described closed hole is communicated with by the cavity of corresponding through hole with left end.There is a closed hole at the center of pressure-bearing joint body 13 right-hand members, and described closed hole is communicated with by the cavity of through hole with left end.The reception test signal line of induction logging instrument is guided on electronic circuit wire casing 2 by above-mentioned corresponding hole, and the line that transmits is guided to 1 li, electronic circuit iron pipe by the hole of center.Yet, it is pointed out that above is only a preferred example.Receive the test signal line and also can be positioned at simultaneously 1 li, electronic circuit iron pipe with the line that transmits.
Pressure-bearing joint body 13 has the many places closed hole, and described closed hole entrance is all chamfering, and the interior outside cavetto of chamfering is so that sealing-plug 5,9,12 smooth installation, as following further explanation.
As shown in Fig. 2 B, electronic circuit iron pipe 1 connects with pressure-bearing joint body 13 by screw thread, and described electronic circuit iron pipe 1 is positioned in the central through hole of electronic circuit wire casing 2.Described electronic circuit iron pipe is made by high magnetic permeability mild steel, can eliminate the interference that transmits to received signal.When induction logging instrument was worked, the intensity that transmits was more than 1000 times of received signal strength, and the effect of electronic circuit iron pipe 1 is to provide a good electromagnetism passage to reduce impact to received signal to the line that transmits.
The surperficial circle distribution of electronic circuit wire casing 2 in Fig. 2 B a plurality of (such as 12) rectangular channel.Various holding wires are installed for convenience, and the right side entrance corner angle quilt of described 12 rectangular channels is cavetto fully, thereby guarantees not injure holding wire.Described electronic circuit wire casing 2 has centre bore, and electronic circuit iron pipe 1 therefrom passes and is fixed in pressure-bearing joint body 13.Described electronic circuit wire casing 2 has an inclined hole 62, and the holding wire of mud resistivity pole plate 7 is guided circuit board via multicore sealing-plug 5 into by this inclined hole.
Half swivel nut 3 is semi-loop, is enclosed within on the external cylindrical surface 42 of pressure-bearing joint body 13 after can taking apart, realizes the linkage function with the electronic circuit shell.
Preferably, pressure-bearing plug 4 has external screw thread, and the endoporus of described pressure-bearing plug 4 is coaxial with the outlet of the inclined hole in electronic circuit wire casing 2 circle.The purpose of pressure-bearing plug is to carry the 140Mpa pressure on multicore sealing-plug 5 end faces.
In Fig. 2 B, the insulation materials of mud resistivity pole plate 7 matrixes is high-temperature resistance plastice.Mud resistivity pole plate 7 is for having the measurement electrode concentric ring, and these concentric rings are realized the measurement to mud resistivity.Mud resistivity pole plate 7 is equipped with rubber seal, with the hole sealing of pressure-bearing joint body 13.The outermost electrodes of mud resistivity pole plate 7 has screw thread, can use inner thread sleeve to be enclosed within and install, dismantles pole plate on described screw thread.The measurement electrode of mud resistivity pole plate 7 has the cone groove outward, and described cone groove is positioned on the external surface of pressure-bearing joint body (13), and the cone angle of described cone groove is the obtuse angle.Mud resistivity pole plate 7 is outer porose with back-up ring 6, limits it and moves.
Pressure-bearing joint body 13 in Fig. 2 B is equipped with oiling plug 8, has external screw thread, and described oiling plug 8 is equipped with a HTHP rubber seal.The installing hole of described oiling plug 8 is communicated with the cavity of mud resistivity pole plate 7 installing holes, and the installing hole of described oiling plug 8 is communicated with the right side of pressure-bearing joint body 13.By this passage, be communicated with the cavity of the cavity of mud resistivity pole plate and pipe nipple 24 inside of popping one's head in.
In Fig. 2 B, multicore sealing-plug 9 is positioned at the closed hole of pressure-bearing joint body 13, described multicore sealing-plug 9 is equipped with two HTHP rubber seal, the axle center of described multicore sealing-plug 9 is with pressure-bearing joint body 13, the axis coinciding of electronic circuit iron pipe 1, probe iron pipe 11 and probe mandrel 13.The sealing plug is used for connecting the line that transmits of instrument.
Probe iron pipe 11 connects by the screwed hole end face of screw with pressure-bearing joint body 13.Similarly, described probe iron pipe is made by high magnetic permeability mild steel, can eliminate the interference that transmits to received signal.
As shown in Figure 3A, in Fig. 2 C, multicore sealing-plug 12 is for example 12, is positioned at the closed hole of pressure-bearing joint body 13, and these sealing-plugs are used for connecting the reception holding wire of instrument.Described multicore sealing-plug 12 is equipped with two HTHP rubber seal, and described multicore sealing-plug 12 left ends have the elongated through hole in 12 places, and described through hole extends in pressure-bearing joint body 13 left end cavitys always.Described elongated orifices is used for holding the multipath reception holding wire.
In Fig. 3 B, one-way valve seat 16 connects with pressure-bearing joint body 13 by screw thread, described one-way valve seat 16 is equipped with 1 HTHP rubber seal, in described one-way valve seat 16, the contact pin type one way valve is housed, described one-way valve seat 16 circumference have four circular holes, and described four circular holes are communicated with external surface and its inner chamber of pressure-bearing joint body 13.Repairing plug 15 have an external screw thread, described repairing plug is equipped with a HTHP rubber seal, the installing hole of described repairing plug 15 is communicated with a plurality of circular holes of one-way valve seat 16.When instrument loses oil, but removal repairing plug 15 uses handlance to pass through the interior contact pin type one way valve of one-way valve seat 16 to the instrument internal repairing.
Oilhole and the half slot on pressure-bearing joint body 13 internal thread holes that the many places closed hole of pressure-bearing joint body 13 passes through diameter 5mm with the right side of pressure-bearing joint body 13 are communicated with, and described closed hole for example comprises multicore sealing-plug 5,9,12 installing hole, the installing hole of mud resistivity pole plate 7, the installing hole of oiling plug 8, the installing hole of relief valve seat 14, the installing hole of repairing plug 15, the installing hole of one-way valve seat 16.Realize the UNICOM of oil circuit by these holes.
Pressure-bearing joint body 13,41 as shown in Figure 4 is the place in two place's seal grooves, and 45 is the place in two place's seal grooves.42 is the external cylindrical surface that pressure-bearing joint body 13 is installed half swivel nut 3.Groove 43 is the cone groove of the measurement electrode of mud resistivity pole plate 7.Closed hole 44 is the closed hole of mud resistivity pole plate 7.Half slot 46 is the half slot on pressure-bearing joint body 13 internal thread holes.Screw thread 48 is for connecting the internal thread hole of instrument probe pipe nipple 24.Hole 47 is for installing the closed hole of multicore sealing-plug 12.
Mud resistivity pole plate 7 as shown in Figure 5, insulating body 52 is high-temperature resistance plastice, and wherein 53,54,55,56 is the electrode concentric ring, and 53,56 is the emission electrode ring, and 54,55 is the collecting electrode ring.Groove 51 is the seal groove of pole plate.
Electronic circuit wire casing 2 as shown in Figure 6, groove 64 are a plurality of (such as the 12) rectangular channel that distributes at circumferential surface.The right side entrance corner angle of described 12 rectangular channels are by abundant cavetto, and shown entrance 63 is examples.Electronic circuit wire casing 2 has centre bore 61, and electronic circuit iron pipe 1 therefrom passes.The holding wire of multicore sealing-plug 5 is guided circuit board into by inclined hole 62.
As shown in Figure 7, relief valve seat 14 has external screw thread 72, and external screw thread connects with pressure-bearing joint body 13, and described relief valve seat 14 has groove 73 and rubber seal is housed.In the hole 71 of described relief valve seat 14, the contact pin type overflow valve is housed.The effect of overflow valve is to keep the valve inlet pressure and is bordering on constantly, and overflow valve is the pressure-control valve that fluid unnecessary in system refluxes by this valve.For induction logging instrument, the silicone oil hypertonia of the pipe nipple 24 that its role is to prevent to pop one's head in.
As shown in Fig. 8 A and 8B, one-way valve seat 16 has external screw thread 82, and external screw thread connects with pressure-bearing joint body 13, and described one-way valve seat 16 has groove 84 and rubber seal is housed.In the hole 81 of described one-way valve seat 16, the contact pin type one way valve is housed.Described one-way valve seat 16 circumference have a plurality of holes 83, and described a plurality of holes are communicated with external surface and its inner chamber of pressure-bearing joint body 13.When instrument loses oil, silicone oil by a plurality of holes 83 in one-way valve seat 16 after, by the contact pin type one way valve to the instrument internal repairing.One way valve claims again flap valve or non retern valve, is used for hydraulic system and prevents oil stream reverse flow.For induction logging instrument, the silicone oil of the pipe nipple 24 that its role is to prevent to pop one's head in flows out.
According to preferred embodiment of the present utility model, electronic circuit iron pipe 1 connects with the hole in two end faces of pressure-bearing joint body 13 with the iron pipe 11 of being connected.Electronic circuit wire casing 2 is embedded in the inside of pressure-bearing joint body 13, and electronic circuit iron pipe 1 passes from the center of electronic circuit wire casing 2.Multicore sealing-plug 5, and compresses be screwed in the closed hole of pressure-bearing joint body 13 by pressure-bearing plug 4 after with pressure-bearing joint body 13 sealing by sealing ring.Mud resistivity pole plate 7 radially is inserted in the hole of pressure-bearing joint body 13 from the outside along pressure-bearing joint body 13, and is sealed by sealing ring.Multicore sealing-plug 9 is positioned in the hole of pressure-bearing joint body 13, and is sealed by sealing ring.A plurality of multicore sealing-plugs 12 are positioned in the hole of pressure-bearing joint body 13, and the hole is distributed in along different radii on an end face of pressure-bearing joint body 13, and is sealed by sealing ring take the center of circle of pressure-bearing joint body 13 as reference point.Half swivel nut 3 is enclosed within on the external cylindrical surface of pressure-bearing joint body 13.
According to preferred embodiment of the present utility model, pressure-bearing joint body 13 materials are the high magnetic permeability high strength precipitation-hardening stainless steel, pressure-bearing joint body 13 two ends external surfaces respectively have two place's seal grooves, pressure-bearing joint body 13 1 ends have a cavity, the other end has the internal thread hole of, described internal thread has the half slot that extends vertically, a plurality of closed holes of end face distribution, described a plurality of closed hole is communicated with by the cavity of a plurality of holes with the other end, there is 1 place's closed hole at the center of pressure-bearing joint body 13, and described closed hole is communicated with by the cavity of a hole with the other end.
According to preferred embodiment of the present utility model, pressure-bearing joint body 13 has the many places closed hole, and described closed hole entrance all has chamfering, and the interior outside of chamfering is rounded off.
According to preferred embodiment of the present utility model, electronic circuit iron pipe 1 is pipe, connects with pressure-bearing joint body 13 by screw thread, and described electronic circuit iron pipe is made by high magnetic permeability mild steel.The hole of line by the described electronic circuit iron pipe 1 weldering cup welding with multicore sealing-plug 9 that transmits that draw in the electric wire highway section.
According to preferred embodiment of the present utility model, a plurality of rectangular channels of the surperficial circle distribution of electronic circuit wire casing 2, the left side entrance corner angle of described rectangular channel are by abundant cavetto, and described electronic circuit wire casing 2 has centre bore.The reception holding wire that draw in the electric wire highway section is embedded in described a plurality of rectangular channel with the weldering cup welding of a plurality of multicore sealing-plugs 12.
According to preferred embodiment of the present utility model, half swivel nut 3 forms a domain by two semi-rings and is enclosed within on the cylindrical of pressure-bearing joint body 13.
According to preferred embodiment of the present utility model, multicore sealing-plug 5 is positioned at the closed hole of pressure-bearing joint body 13, and described multicore sealing-plug 5 is equipped with the sealing ring sealing.
According to preferred embodiment of the present utility model, mud resistivity pole plate 7 has the matrix of high-temperature insulation material, mud resistivity pole plate 7 has the metal measurement electrode, electrode is concentric ring structure, mud resistivity pole plate 7 is equipped with rubber seal, the outermost electrodes of mud resistivity pole plate 7 has screw thread, mud resistivity pole plate 7 is installed in the closed hole of external cylindrical surface of pressure-bearing joint body 13, the measurement electrode of mud resistivity pole plate 7 has the cone groove outward, the cone groove is positioned on pressure-bearing joint body 13 external surfaces, and the cone angle of cone groove is the obtuse angle.
According to preferred embodiment of the present utility model, multicore sealing-plug 9 plugs are positioned at the closed hole of pressure-bearing joint body 13, and described multicore sealing-plug 9 is equipped with rubber seal, and the axle center of described multicore sealing-plug 9 is with the axis coinciding of pressure-bearing joint body 13.
According to preferred embodiment of the present utility model, pressure-bearing joint body 13 is equipped with relief valve seat 14 and one-way valve seat 16.
According to preferred embodiment of the present utility model, relief valve seat 14 connects with pressure-bearing joint body 13 by screw thread, and described relief valve seat 14 is equipped with rubber seal, in described relief valve seat 14, overflow valve is housed.
According to preferred embodiment of the present utility model, one-way valve seat 16 connects with pressure-bearing joint body 13 by screw thread, described one-way valve seat 16 is equipped with rubber seal, in described one-way valve seat 16, the contact pin type one way valve is housed, described one-way valve seat 16 circumference have a plurality of holes, and described a plurality of holes are communicated with external surface and its inner chamber of pressure-bearing joint body 13.
It is pointed out that the connection of mentioning in the application can be various connections, include but not limited to be threaded, rivet, welding, bonding etc.The bearing of trend of individual channel, through hole and closed hole can be vertical, horizontal or incline direction or their combination.
Measure for satisfying mud resistivity under the technical condition prerequisite of pressure-bearing joint use, because mud resistivity measurement pressure-bearing joint described in the utility model has adopted novel frame for movement, selected simultaneously the finished product multicore sealing-plug of reliable in quality, thereby solved mud resistivity and measured the problems such as pressure-bearing joint processed complex, production cycle length, improve yield rate and the reliability of component, reduce production costs.
Used space relative terms such as " below ", " following ", D score, " on ", " on " etc. to explain that an elements relative is in the location of the second element in order to be easy to explanation.Except being different from the orientation of those orientations of describing in the drawings, these terms are intended to contain the different directed of device.In addition, term such as " first ", " second " etc. also are used to describe various elements, zone, part etc., and are not also that to be intended to be restrictive.Run through manual, similarly the similar element of term reference.
As the land used that makes here, term " has ", " containing ", " comprising ", " comprising " etc. are the existence of the indication element of stating or feature but do not get rid of other element or the open-ended term of feature.Article " one ", " one " and " being somebody's turn to do " are intended to comprise plural number and odd number, unless context clearly separately has indication.
Although abovely illustrate and described various exemplary embodiment of the present utility model with reference to accompanying drawing, those skilled in the art will know and can make and will realize the various changes of some advantages of the utility model and modification and not break away from spirit and scope of the present utility model.Therefore, as long as within these modifications of the present utility model, modification and replacement belonged to the scope of claims of the present utility model and equivalent technical solutions thereof, the utility model also was intended to comprise these modifications, modification and replacement.In addition, with regard to describe in detail or claims in use that term " comprises ", " having ", " with " or their other variants, mode is inclusive to such term intention " to comprise " similarly with term.
In addition, term " exemplary " only means as an example, rather than best or optimum.Also will recognize, the feature of describing here and/or element are for simple and understandable purpose and with shown in specific dimensions relative to each other, actual size may be from shown size be significantly different here.
This area the rational technique personnel will understand, can suitably replace with other parts of carrying out identical function.Even should be mentioned that and not yet clearly mentioning in those situations of this point, the feature of explaining with reference to concrete figure can make up with other Graph Character.Like this modification of utility model concept is intended to be covered by claims.
In addition, the application's scope is not intended to be limited to the specific embodiment of process, machine, manufacturing, material composition, device, method and the step described in manual.Easily recognize open from of the present utility model as those of ordinary skills, according to the utility model can utilize carry out identical in fact function with corresponding embodiment described herein or realize identical in fact result, current existence or later process leaved for development, machine, manufacturing, material composition, device, method or step.Accordingly, claims are intended to comprise these processes, machine, manufacturing, material composition, device, method or step in its scope.
Claims (19)
1. pressure-bearing joint that the mud resistivity that is used for induction logging instrument is measured is characterized in that comprising:
Pressure-bearing joint body (13), an end connecting electronic circuit iron pipe (1) of described pressure-bearing joint body (13) and have a cavity and the other end connects probe iron pipe (11);
The first multicore sealing-plug (9), be arranged in the first path between described electronic circuit iron pipe (1) and described probe iron pipe (11) and by the first sealing ring and seal to block described the first path with pressure-bearing joint body (13), the electronic circuit in described electronic circuit iron pipe (1) is connected via the probe in described the first multicore sealing-plug (9) and described probe iron pipe (11);
Be used for measuring the mud resistivity pole plate (7) of mud resistivity, be arranged in the first closed hole, described the first closed hole extends internally and seals with pressure-bearing joint body (13) by the second sealing ring from the external surface of pressure-bearing joint body (13);
Be used for the plug (8) to the alternate path oiling, be arranged in the second closed hole, described alternate path is different from the first path, described the second closed hole extends internally from the external surface of pressure-bearing joint body (13), be communicated with described the first closed hole and the described other end (11) via described alternate path, and seal with pressure-bearing joint body (13) by the 3rd sealing ring; And
The second multicore sealing-plug (5), one end of described the second multicore sealing-plug (5) is communicated with described alternate path and the other end is communicated with described cavity and by the 4th sealing ring with pressure-bearing joint body (13) sealing, the holding wire of described mud resistivity pole plate (7) is connected to via described the second multicore sealing-plug (5) the common circuit board that described electronic circuit is connected to.
2. pressure-bearing joint according to claim 1, is characterized in that described the second multicore sealing-plug (5) is screwed into by pressure-bearing plug (4) in the 3rd closed hole of pressure-bearing joint body (13), and described the 3rd closed hole is communicated with described alternate path and described cavity.
3. pressure-bearing joint according to claim 1, is characterized in that described the first multicore sealing-plug (9) is arranged in the 4th closed hole that is in described the first path, and described the first path extends along the axis direction of pressure-bearing joint body (13).
4. pressure-bearing joint according to claim 1, is characterized in that the described other end of described pressure-bearing joint body (13) has an internal thread hole, and described internal thread hole has the half slot that extends vertically.
5. pressure-bearing joint according to claim 1, the described other end that it is characterized in that described pressure-bearing joint body (13) provides a plurality of the 5th closed holes, described a plurality of the 5th closed hole is communicated with described cavity by corresponding path, and the 3rd multicore sealing-plug (12) is arranged in described a plurality of the 5th closed hole and by the 5th sealing ring and seals with pressure-bearing joint body (13).
6. pressure-bearing joint according to claim 5, it is characterized in that receiving holding wire and be connected to described circuit board via described the 3rd multicore sealing-plug (12) by corresponding path, and the line that transmits is connected to described probe via the first multicore sealing-plug (9) by described the first path.
7. pressure-bearing joint according to claim 1 is characterized in that described electronic circuit comprises transmit line and receive at least a in holding wire.
8. pressure-bearing joint according to claim 1, it is characterized in that further comprising: electronic circuit wire casing (2), be embedded in the described cavity of described pressure-bearing joint body (13), described electronic circuit iron pipe (1) passes and is inserted into an end of pressure-bearing joint body (13) and fastening from the centre bore of described electronic circuit wire casing (2).
9. pressure-bearing joint according to claim 7, it is characterized in that further comprising: electronic circuit wire casing (2), be embedded in the described cavity of described pressure-bearing joint body (13), described electronic circuit iron pipe (1) passes from the centre bore of described electronic circuit wire casing (2), and described electronic circuit wire casing (2) has a plurality of groove spaced apart from each other to hold described reception holding wire and to have an inclined hole to hold the holding wire of described mud resistivity pole plate (7).
10. pressure-bearing joint according to claim 9, is characterized in that described a plurality of groove is a plurality of rectangular channels of circle distribution, and the entrance corner angle of described rectangular channel are by abundant cavetto.
11. pressure-bearing joint according to claim 1 is characterized in that further comprising: half swivel nut (3) is enclosed within on the external surface of pressure-bearing joint body (13).
12. pressure-bearing joint according to claim 1 is characterized in that described electronic circuit iron pipe made by high magnetic permeability mild steel.
13. pressure-bearing joint according to claim 1 is characterized in that described pressure-bearing plug (4) has external screw thread to coordinate fastening with pressure-bearing joint body (13).
14. pressure-bearing joint according to claim 1, the matrix that it is characterized in that described mud resistivity pole plate (7) is high-temperature insulation material, mud resistivity pole plate (7) has the measurement electrode of concentric ring, described measurement electrode has the cone groove outward, described cone groove is positioned on the external surface of pressure-bearing joint body (13), the cone angle of described cone groove is the obtuse angle, and the outermost electrodes of described mud resistivity pole plate (7) has screw thread to coordinate fastening with pressure-bearing joint body (13).
15. pressure-bearing joint according to claim 1 is characterized in that described probe iron pipe made by high magnetic permeability mild steel.
16. pressure-bearing joint according to claim 1 is characterized in that further comprising: relief valve seat (14), connect with pressure-bearing joint body (13) and sealing ring is housed by screw thread, in described relief valve seat (14), overflow valve is housed.
17. pressure-bearing joint according to claim 1, it is characterized in that further comprising: one-way valve seat (16), connect with pressure-bearing joint body (13) by screw thread and sealing ring is housed, in described one-way valve seat (16), the contact pin type one way valve is housed, described one-way valve seat (16) has a plurality of holes on circumference, described a plurality of holes are communicated with external surface and the described alternate path of pressure-bearing joint body (13).
18. pressure-bearing joint according to claim 1 is characterized in that the external surface at the two ends of described pressure-bearing joint body (13) respectively has at least one place groove, on described groove, sealing ring can be installed.
19. induction logging instrument, it is characterized in that comprising electric wire highway section (21,22), pressure-bearing joint according to claim 1 (23) and probe section (24), wherein said pressure-bearing joint (23) connects described electric wire highway section (21,22) and described probe section (24), power supply, emission and Acquisition Circuit and communicating circuit for induction logging instrument are housed in electric wire highway section (21,22), and in probe section (24), the sensor for induction logging instrument are housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220423651 CN203271609U (en) | 2012-08-24 | 2012-08-24 | Sensing logging instrument and pressure-bearing joint for mud resistivity survey |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220423651 CN203271609U (en) | 2012-08-24 | 2012-08-24 | Sensing logging instrument and pressure-bearing joint for mud resistivity survey |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203271609U true CN203271609U (en) | 2013-11-06 |
Family
ID=49502047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220423651 Withdrawn - After Issue CN203271609U (en) | 2012-08-24 | 2012-08-24 | Sensing logging instrument and pressure-bearing joint for mud resistivity survey |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203271609U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628825A (en) * | 2012-08-24 | 2014-03-12 | 中国石油集团长城钻探工程有限公司 | Slurry resistivity measurement pressure bearing connector used for induction logging instrument |
| CN103899302A (en) * | 2014-04-18 | 2014-07-02 | 中国海洋石油总公司 | Fast butt-joint sealing structure of rotary scanning head of ultrasonic imaging logging instrument |
-
2012
- 2012-08-24 CN CN 201220423651 patent/CN203271609U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628825A (en) * | 2012-08-24 | 2014-03-12 | 中国石油集团长城钻探工程有限公司 | Slurry resistivity measurement pressure bearing connector used for induction logging instrument |
| CN103628825B (en) * | 2012-08-24 | 2016-08-10 | 中国石油集团长城钻探工程有限公司 | The pressure-bearing joint measured for the mud resistivity of induction logging instrument |
| CN103899302A (en) * | 2014-04-18 | 2014-07-02 | 中国海洋石油总公司 | Fast butt-joint sealing structure of rotary scanning head of ultrasonic imaging logging instrument |
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Granted publication date: 20131106 Effective date of abandoning: 20160810 |
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