CN209654033U - A kind of novel closed gas-liquid sampler - Google Patents

Abstract

The utility model provides a kind of novel closed gas-liquid sampler, mechanism, pipeline, positioning mechanism, standard sample detector are pushed back including closed, described pipeline one end connects petroleum pipeline sample tap, the other end connects the closed side wall import for pushing back mechanism lower end threeway, the closed mechanism that pushes back is fixed on petroleum pipeline by positioning mechanism positioning, and the pipeline is flexible universal joint connecting pipeline.The utility model using chain-type fixation clamp position, lock portion using sawtooth tooth it is anti-skidding, may be implemented different tube diameters pipeline with separate being fixedly connected for sample bucket；Disengaged structure is used between piston and piston rod, can sufficiently release the gas in Produced Liquid；Using flexible universal joint connecting pipeline, the multidirectional function of swinging connection locking is distinguished at both ends, and middle part can stretch, be easily installed, and bears pressure height, and safety coefficient is big；Using ball screw reducing friction resistance, used convenient for operator.

Description

A kind of novel closed gas-liquid sampler

Technical field

The utility model relates to periodically enroll oil sample or gas sample water sample technical field in oilfield development process, especially one Kind novel closed gas-liquid sampler.

Background technique

In oilfield development process, crude oil, water flooding, methane, hydrogen sulfide gas, carbon dioxide gas etc. are adopted to ground Face needs periodically to enroll oil sample or gas sample water sample etc. according to the formulation of pertinent regulations and development plan.

(1) during drawing oil sample, for guarantee oil analysis data it is accurate, must be connect when drawing oil sample sewage disposal barrel first from At sampling gate be vented, bleed off the dead oil condensed between pipeline inner wall and sampling gate, until see have green oil liquid stream go out after It reuses sample bucket to draw oil sample, so every sub-sampling discharge dead oil of each well need to waste 0.2-0.5 kilograms of crude oil or so, both affect Crude output causes environmental pollution again, and every sub-sampling all can cause the crude oil of considerable amount by outlet, not only cause The loss of this part crude oil, while also polluted atmospheric environment to a certain extent with the gas that crude oil is discharged.If extraction Contain hydrogen sulfide gas in object, in air, personnel cause grave danger to sampling operation for hydrogen sulfide content disperse.

(2) when scene takes hydrogen sulfide gas sample or carbon dioxide gas sample at present, method used is will to sample hose to be installed on On sample cock, the other end for sampling hose is put into sample bucket bottom, gate emptying is opened, the air in sample bucket is discharged, use The gas that tester takes out sample bucket bottom is detected, and this non-enclosed sampling method is the problem is that necessary when sampling It needs to be vented, sample bucket and soft air in tube is displaced, sample is then extracted in exhaust condition, is detected.Also It is that will sample hose to be installed on sample cock, the other end for sampling hose is pulled into well site position, opens gate emptying, will take Air discharge in sample hose is detected, both non-enclosed sampling methods with the gas that tester extracts sample sampling hose The problem is that must need to be vented when sampling, soft air in tube is displaced, then extracts sample in exhaust condition, one Aspect causes mixing air in sample, and sample is impure, cannot get accurate data；On the other hand natural gas leaking will be caused, it is contained In air, to sampling operation, personnel threaten for hydrogen sulfide disperse, while causing pollution to environment.

A kind of well mouth of oil well hydrogen sulfide enclosed sampling and detection device and method of Patent No. CN108487906A, with this Partial function may be implemented in device, but above-mentioned patent belongs to stationary installation, is not easy to install, and each well requires to be welded into This is huge, is not easy to promote and apply, and the device that we invent can also be achieved conveniently to be installed everywhere in process, belongs to shifting Dynamic formula device, can also realize it is closed draw oil sample, and remaining oil gas can be flow back in process again, realize that enclosed sampling residue is returned The function of receipts, while can be detected at the scene.

For above situation, sealing sampler is installed on Well head flow path and outer defeated process, takes out the gas of needs, so Afterwards with quantitative sample detection device, certain gas flow is extracted, carries out on-the-spot test using colorimetric cylinder, it will be remaining after the completion of test Gas push back process, accomplish closed gas sampling residual gas recycling, such very good solution above problem.It draws oil sample simultaneously When, it can open the gate direct sample of lower part, gas not outlet, safety and environmental protection.

Utility model content

The purpose of this utility model is to provide a kind of novel closed gas-liquid samplers, fixed using chain-type fixation clamp Position, lock portion using sawtooth tooth it is anti-skidding, may be implemented different tube diameters pipeline with separate being fixedly connected for sample bucket；Piston and work Disengaged structure is used between stopper rod, can sufficiently release the gas in Produced Liquid；Using flexible universal joint connecting tube The multidirectional function of swinging connection locking is distinguished at line, both ends, and middle part can stretch, be easily installed, and bears pressure height, safety coefficient Greatly；Using ball screw reducing friction resistance, used convenient for operator；The bottom for separating sample bucket is equipped with dedicated sampling and leads to Road, it may be convenient to enroll oil sample.It simultaneously can Remaining Oil And Gas being flow back in process again with safety and steady.The device admission be Instantaneous hydrogen sulfide content in unit time process, detection data are accurate.The quick coupling energy fast sealing docking is described fast Quick coupling, test strobe, colorimetric cylinder plug are designed using three way type, and the locking gum cover is used cooperatively with lock nut is tightened, Colorimetric cylinder is easy to connect securely.

The purpose of this utility model can be achieved by the following technical measures:

The novel closed gas-liquid sampler include it is closed push back mechanism, pipeline, positioning mechanism, pipeline one end connection Petroleum pipeline sample tap, the other end connect the closed side wall import for pushing back mechanism lower end threeway, and the closed mechanism that pushes back is by determining Mechanism positioning in position is fixed on petroleum pipeline, and the standard sample detector is connect with the closed sample tap for pushing back mechanism, described fixed Position mechanism include flyer chain, connection pin shaft, V-arrangement locating piece, sleeve, tightening handle, gland, sliding lock block, fixed closing piece, Lock tube, locknut, screw rod, connecting rod, V-arrangement locating piece left side open up V-shaped groove, and leading flank opens up front guide slot, rear side Face opens up rear guide groove, and the V-shaped groove of the V-arrangement locating piece is stuck on petroleum pipeline, and the connecting rod left end connects the V-arrangement locating piece Right flank middle part, the connection of connecting rod right end is closed to push back mechanism, and the lock tube opens up chain through hole and the front and back of left and right perforation The locking hole of perforation constitutes interconnected cross hole path, and fixed closing piece is installed in the locking hole lower end, in lock tube front end face Gland is installed, gland center opens up threaded hole, and handle stud is mounted in the threaded hole of gland, the connection sliding of handle stud inner end Closing piece protrudes into locking hole, and handle stud outer end connects tightening handle, and the flyer chain front end passes through the leading of V-arrangement locating piece Slot is then passed through the chain through hole of lock tube, and flyer chain is clamped and fixed between sliding lock block and fixed closing piece, the lock tube Left side leans against front guide slot right side, and the flyer chain rear end passes through the left end of the connection hinged screw rod of pin shaft, and the screw rod is same When be threaded through in the rear guide groove and sleeve centre bore of V-arrangement locating piece, locknut is set on screw rod, locknut left end is held out against Sleeve right side, the sleeve left side lean against rear guide groove right side, and the flyer chain and V-arrangement locating piece are held tightly simultaneously On petroleum pipeline outer circle wall.

The purpose of this utility model can be also achieved by the following technical measures:

The lock tube left side opens up anti-skidding sawtooth, and the V-arrangement locating piece front guide slot right side also opens up adaptable anti- Slide saw tooth, i.e., the anti-skidding sawtooth card of lock tube left side is on the anti-skidding sawtooth of V-arrangement locating piece front guide slot right side；The sleeve Left side opens up anti-skidding sawtooth, and guide groove right side also opens up adaptable anti-skidding sawtooth after the V-arrangement locating piece, i.e. sleeve is left The anti-skidding sawtooth card of side is after V-arrangement locating piece on the anti-skidding sawtooth of guide groove right side.

The lock tube opens up screw hole, and screw hole installs fastening screw, and the fixed closing piece is solid by the fastening screw Fixed, the gland is fixed by screws in lock tube leading flank, during screw thread type connection V-arrangement locating piece in the connecting rod left end opens up Heart threaded hole is directly welded at V-arrangement locating piece right flank middle part, and the connecting rod right end and the closed mechanism that pushes back are welded.

The closed mechanism that pushes back includes cylinder body, piston, ball screw, ball nut, end cap, and the piston is mounted on cylinder Intracoelomic cavity, piston upper surface open up groove, nonmetallic set are inlayed in groove, the cylinder body has upper port and lower port, described Cylinder body upper port fixes end cap, and end cap central bore installs ball nut, and the ball screw is coupled with ball nut, ball Screw lower end is set with angular contact bearing, and angular contact bearing can protrude into nonmetallic set downwards, and the cylinder side wall opens up air hatch, Air hatch installs sample tap connector, and the vertical range of air hatch to ball nut bottom end is greater than depth pistion, the cylinder body lower end Mouth connection lower contact, lower contact connection threeway is suitable for reading, and mouth connects liquid sampling valve under threeway.

The end cap screw-type connection cylinder body upper port, the ball nut are opened by the fixed end cap of mounting screw, end cap If gas vent up and down, sealing ring is arranged in the piston outer wall, seals with inboard wall of cylinder block.

The ball screw lower end outer wall clamps baffle ring, and baffle ring blocks angular contact bearing lower end surface.

The pipeline is flexible universal joint connecting pipeline.

The flexible universal joint connecting pipeline includes flexible pipe assembly, globe joint one, globe joint two, described flexible Pipe assembly right end connects globe joint one, and one right end of globe joint connects the import of threeway side wall, the telescoping tube by box cupling one Assembly left end connects globe joint two, and two left end of globe joint connects 360 ° of turning gland lower right mouths, 360 ° of rotations by box cupling two Oil transportation tube valve on the upper right mouth connection petroleum pipeline of turning.

The flexible pipe assembly includes the casing being set in together, telescoping tube, and described sleeve pipe right end screw thread type connects tightening Gland one, casing right side open up spherical surface, and tightening gland one opens up centre bore, and one centre bore internal diameter of tightening gland is less than shape connector One bulb diameter, the bulb of shape connector one are protruded into tightening gland one and are bonded with the spherical surface of casing right side；The telescoping tube Left end screw thread type connects tightening gland two, and telescoping tube left side opens up spherical surface, and tightening gland two opens up centre bore, tightening gland two Centre bore internal diameter is less than the bulb diameter of shape connector two, and the bulb of shape connector two protrudes into tightening gland two and telescoping tube left side Spherical surface fitting.

Described sleeve pipe inner wall installs sealing ring, seals with flexible pipe outer wall, and described sleeve pipe left end screw thread type connects locking screw Mother is set with cone locking ring between locking nut and telescoping tube.

The standard sample detector includes detector cylinder body, detector piston, quick coupling, test strobe, sample pipe, institute Sample infratubal port connecting detection device cylinder body upper port is stated, sample pipe upper port connects lock nut, suit locking outside lock nut Gum cover, radial first hole that the quick coupling outlet sample pipe opens up, the test strobe are connected to the diameter that sample pipe opens up To on the second hole, lock nut is connect with colorimetric cylinder plug.

The utility model has the advantages that compared with prior art

(1) chain-type fixation clamp is used, is positioned using V, lock portion is anti-skidding using sawtooth thread form, and difference may be implemented Caliber pipeline with separate being fixedly connected for sample bucket；

(2) disengaged structure is used between piston and piston rod, can sufficiently release the gas in Produced Liquid；

(3) flexible universal joint connecting pipeline is used, both ends swing the function of connection locking respectively, and middle part can stretch Contracting, is easily installed, and bears pressure height, and safety coefficient is big；Connection with 360 ° of turning glands simultaneously, turns entire pipeline with the need To more flexible；

(4) ball screw reducing friction resistance is used, is used convenient for operator；

(5) bottom for separating sample bucket is equipped with dedicated sampling channel, it may be convenient to enroll oil sample.

It (6) can Remaining Oil And Gas being flow back in process again with safety and steady.

(7) gas for connecting standard sample detector taking-up normal volume when gas sample with quick coupling in sample tap connector is taken Colorimetric cylinder is inserted into locking gum cover, tightens lock nut, open test strobe, piston is pushed to be detected by body.Take liquid Sample, similarly.Standard sample detector utilizes threeway, gate, colorimetric cylinder plug using ontology and quick coupling split-type design Design, sampling is accurate, and colorimetric cylinder is connected firmly.

A kind of well mouth of oil well hydrogen sulfide enclosed sampling and detection device of the present apparatus and Patent No. CN108487906A and Method has the advantage that, using chain-type fixation clamp, is positioned using V, and lock portion is anti-skidding using sawtooth tooth, may be implemented Different tube diameters pipeline with separate being fixedly connected for sample bucket；Disengaged structure is used between piston and piston rod, can sufficiently be released Release the gas in Produced Liquid；Using flexible universal joint connecting pipeline, 360 ° of function for swinging connection locking are distinguished at both ends Can, middle part can stretch, be easily installed, and bear pressure height, and safety coefficient is big；Using ball screw reducing friction resistance, just It is used in operator；The bottom for separating sample bucket is equipped with dedicated sampling channel, it may be convenient to enroll oil sample.It simultaneously can be safe Smoothly Remaining Oil And Gas is flow back in process again.What the device was enrolled is the instantaneous hydrogen sulfide content in unit time process, inspection Measured data is accurate.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the sampling main body mechanism of the utility model embodiment；

Fig. 2 is the schematic diagram of the standard sample detector of the utility model embodiment；

Fig. 3 is the A-A cross-sectional view of Fig. 1；

Fig. 4 is the V-arrangement locating piece cross-sectional view under overlooking state；

Fig. 5 is the left view of Fig. 4；

Fig. 6 is flexible universal joint connecting pipeline structural schematic diagram.

In figure: 1, flyer chain；2, pin shaft is connected；3, v-shaped locating piece；4, sleeve；5, tightening handle；6, gland；7, Sliding lock block；8, fixed closing piece；9, lock tube；10, locknut；11, screw rod；12, connecting rod；13, ball screw；14, it is vented Hole；14-1, mounting screw；15, ball nut；16, end cap；17, sample tap connector；18, cylinder body；19, angular contact bearing；20, Baffle ring；21, nonmetallic set；22, piston；23, lower contact；24, threeway is connected；24-1, liquid sampling valve；25, box cupling one；26, Globe joint one；27, tightening gland one；28, casing；29, sealing ring；30, locking nut；31, cone locking ring；32, it stretches Pipe；33, tightening gland two；34, globe joint two；35, box cupling two；36, connecting tube two；37,360 ° of turning glands；38, valve； 39, oil transportation tube valve；40, petroleum pipeline；41, quick coupling；42, standard sample detector；43, gum cover is locked；44, locking screw Cap；45 test strobes.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1 to Fig. 6 is please referred to, the utility model provides a kind of technical solution: a kind of novel closed gas-liquid sampler, packet Include it is closed push back mechanism, pipeline, positioning mechanism, standard sample detector, it is described closed to push back mechanism, pipeline, positioning mechanism one It rises and constitutes sampling main body mechanism, described pipeline one end connects petroleum pipeline sample tap, and other end connection is closed to push back mechanism lower end three Logical side wall import, the closed mechanism that pushes back are fixed on petroleum pipeline 40 by positioning mechanism positioning, the standard sample inspection It surveys device to connect with the closed sample tap for pushing back mechanism, the positioning mechanism includes flyer chain 1, connection pin shaft 2, V-arrangement locating piece 3, sleeve 4, tightening handle 5, gland 6, sliding lock block 7, fixed closing piece 8, lock tube 9, locknut 10, screw rod 11, connecting rod 12,3 left side of V-arrangement locating piece opens up V-shaped groove, and leading flank opens up front guide slot, and trailing flank opens up rear guide groove, and the V-arrangement is fixed The V-shaped groove of position block is stuck on petroleum pipeline, and 12 left end of connecting rod connects the V-arrangement locating piece right flank middle part, and connecting rod is right End connection is closed to push back mechanism, and the lock tube 9 opens up the chain through hole of left and right perforation and the locking hole of front and back perforation, constitutes phase Fixed closing piece 8 is installed in intercommunicated cross hole path, the locking hole lower end, installs gland 6, gland center in lock tube front end face Threaded hole is opened up, handle stud is mounted in the threaded hole of gland, and handle stud inner end connection sliding lock block protrudes into locking hole, Handle stud outer end connects tightening handle 5, and 1 front end of flyer chain passes through the front guide slot of V-arrangement locating piece, is then passed through lock tube Chain through hole, flyer chain is clamped and fixed between sliding lock block and fixed closing piece, before 9 left side of lock tube leans against Guide groove right side, the flyer chain rear end pass through the left end of the connection hinged screw rod 11 of pin shaft 2, and the screw rod 11 is threaded through simultaneously In 4 centre bore of rear guide groove and sleeve of V-arrangement locating piece, locknut 10 is set on screw rod, locknut left end holds out against tightening Right side is covered, the sleeve left side leans against rear guide groove right side, and the flyer chain and V-arrangement locating piece are held tightly defeated simultaneously On 40 outer circle wall of oil pipe.

9 left side of lock tube opens up anti-skidding sawtooth, and the 3 front guide slot right side of V-arrangement locating piece also opens up adaptable Anti-skidding sawtooth, i.e., the anti-skidding sawtooth card of lock tube left side is on the anti-skidding sawtooth of V-arrangement locating piece front guide slot right side；The tightening It covers 4 left sides and opens up anti-skidding sawtooth, guide groove right side also opens up adaptable anti-skidding sawtooth, i.e. tightening after the V-arrangement locating piece 3 The anti-skidding sawtooth card of set left side is after V-arrangement locating piece on the anti-skidding sawtooth of guide groove right side.

The lock tube 9 opens up screw hole, and screw hole installs fastening screw, and the fixed closing piece 8 passes through the fastening screw Fixed, the gland 6 is fixed by screws in lock tube leading flank, and 12 left end screw thread type of the connecting rod connection V-arrangement locating piece is opened If screwed hole of centre or be directly welded at 3 right flank middle part of V-arrangement locating piece, 12 right end of connecting rod and closed push back machine The cylinder body of structure welds.

The closed mechanism that pushes back includes cylinder body 18, piston 22, ball screw 13, ball nut 15, end cap 16, the work Plug 22 is mounted on 18 inner cavity of cylinder body, and piston upper surface opens up groove, and nonmetallic set 21 is inlayed in groove, and the cylinder body has upper end Mouth and lower port, the fixed end cap 16 of the cylinder body upper port, end cap central bore install ball nut 15, the ball screw and rolling Pearl nut is coupled, and ball screw lower end is set with angular contact bearing 19, and angular contact bearing can protrude into nonmetallic set downwards, institute It states cylinder side wall and opens up air hatch, take and standard sample detector is connected by quick coupling 41 in sample tap connector 17 when gas sample 42, the gas of normal volume is taken out, colorimetric cylinder is inserted into locking gum cover 43, lock nut 44 is tightened, opens test strobe 45, push the piston of standard sample detector 42 to carry out that gas sample is taken to detect.Air hatch to ball nut bottom end vertical range Greater than depth pistion, the cylinder body lower port connects lower contact 23, and lower contact connection threeway 24 is suitable for reading, and mouth connects liquid under threeway Sampling valve 24-1.It is identical as gas sampled detection mode, liquid is connected by quick coupling 41 with standard sample detector 42 and is taken Sample valve 24-1 can take liquid-like to detect.The quick coupling energy fast sealing docking, the quick coupling, test strobe, ratio Colour tube plug is designed using three way type, and the locking gum cover is used cooperatively with lock nut is tightened, and colorimetric cylinder is easy to connect securely.

16 screw-type connection cylinder body of end cap, 18 upper port, the ball nut pass through mounting screw 14-1 fixing end Lid, end cap open up gas vent 14 up and down, and sealing ring is arranged in the piston outer wall, seal with inboard wall of cylinder block.

The ball screw lower end outer wall clamps baffle ring 20, and baffle ring blocks angular contact bearing lower end surface.

The pipeline is flexible universal joint connecting pipeline.The flexible universal joint connecting pipeline includes that telescoping tube is total At, globe joint 1, globe joint 2 34, the flexible pipe assembly right end connects globe joint 1, and globe joint one is right End connects 24 side wall import of threeway by box cupling 1, and the flexible pipe assembly left end connects globe joint 2 34, globe joint Two left ends connect 360 ° of 37 lower right mouths of turning gland by box cupling two, and 360 ° of upper right mouths of turning gland 37 connect on petroleum pipelines Oil transportation tube valve 39, certain 360 ° of turning glands and oil transportation tube valve 39 can also connect a valve 38.

If box cupling 1 and threeway 24 apart from remote, can be connected using connecting tube one is installed additional, if box cupling 2 35 with 360 ° of turning glands 37 can also pretend connecting tube 2 36 to connect apart from remote.

The flexible pipe assembly includes the casing 28 being set in together, telescoping tube 32, and 28 right end screw thread type of described sleeve pipe connects Tightening gland 1 is connect, 28 right side of casing opens up spherical surface, and tightening gland one opens up centre bore, one centre bore internal diameter of tightening gland Less than the bulb diameter of shape connector 1, the bulb of shape connector one is protruded into tightening gland one and is pasted with the spherical surface of casing right side It closes；The 32 left end screw thread type of telescoping tube connects tightening gland 2 33, and telescoping tube left side opens up spherical surface, and tightening gland two opens up Centre bore, two centre bore internal diameter of tightening gland are less than the bulb diameter of shape connector 2 34, and the bulb of shape connector two protrudes into tightening pressure It is bonded in lid two with the spherical surface of telescoping tube left side.

Described sleeve pipe inner wall installs sealing ring 29, seals with flexible pipe outer wall, the connection locking of described sleeve pipe left end screw thread type Nut 30 is set with cone locking ring 31 between locking nut and telescoping tube.

The standard sample detector includes detector cylinder body, detector piston, quick coupling 41, test strobe 45, sample Pipe, the sample infratubal port connecting detection device cylinder body upper port, sample pipe upper port connect lock nut 44, lock nut outer cover Dress locking gum cover 43, radial first hole that the quick coupling outlet sample pipe opens up, the test strobe are connected to sample pipe On radial second hole opened up, lock nut is connect with colorimetric cylinder plug.

Two, working principle:

(1) in-site installation:

(1) equipment is fixedly connected: flyer chain 1 being bypassed petroleum pipeline 40, the V slot on V-arrangement locating piece 3 is leaned against petroleum pipeline 40；The position of board-like chain lock set 9 is adjusted, (lock tube 9 is located on V-arrangement locating piece 3, due on V-arrangement locating piece 3 and lock tube 9 points Not She You sawtooth pattern tooth, to ensure that the stability of positioning).Tightening handle 5 is rotated, and drives sliding lock block 7 mobile, by plate Formula chain is fixed among sliding lock block 7 and fixed closing piece 8, (due to being respectively equipped on sliding lock block 7 and fixation closing piece 8 and plate The identical male end of shape on formula chain makes to slide after chain is locked).

(2) rotational fastener nut 10 and drive 11 flyer chain 1 of screw rod mobile, while flyer chain is locked at petroleum pipeline 40 On.

(3) pipeline connect: valve 38 is docked with silk head with oil transportation tube valve 39, first adjustment 360 ° of turning glands 37 to Suitable setting angle and locking；Then tightening gland 1, tightening gland 2 33 are adjusted separately, both ends globe joint 1, Globe joint 2 34 has the function of 360 ° of swings, is screwing tightening gland after so that pipeline is reached suitable angle, is unclamping simultaneously Locking nut 30 is locked again after so that telescoping tube 32 is slided the length for reaching suitable in casing 28.

(2) it tests:

1, so that piston 22 is in 18 lowermost end of cylinder body with spanner swing roller screw rod 13 first, then screw out ball wire with spanner Bar 13 (is matched with nonmetallic 21 inner ring of set using gap 19 outer ring of angular contact bearing of 13 lower end of ball screw installation to most significant end It closes, the nonmetallic set 21 that piston 22 is inlayed can prevent from generating spark when collision).

2, it is separately turned on valve 38, oil transportation tube valve 39, the oil-gas mixture in petroleum pipeline 40 enters cylinder through connecting pipeline In body 18, most significant end in 22 uplink cylinder body 18 of piston is pushed under pressure.(the sky of the upper cavity in cylinder body 18 of piston 22 Gas is discharged by gas vent 14).It takes and connect the taking-up of standard sample detector 42 when gas sample with quick coupling 41 in sample tap connector 17 Colorimetric cylinder is inserted into locking gum cover 43, tightens lock nut 44, open test strobe 45, pushes by the gas of normal volume Piston is detected.Liquid sampling valve 24-1 is opened when drawing oil sample is discharged crude oil, closes when taking out suitable oil sample or outlet Close liquid sampling valve 24-1.Piston 22 is set to be in 18 lowermost end of cylinder body with spanner swing roller screw rod 13 after the completion of sample detection, By remaining Gas fluid pressure reflux journey, accomplish that gas-liquid closed samples remaining gas-liquid and pushes back, which fills up technological gap, has and promotes Value.

A kind of well mouth of oil well hydrogen sulfide enclosed sampling and detection device of the present apparatus and Patent No. CN108487906A and Method has the advantage that, using chain-type fixation clamp, is positioned using V, and lock portion is anti-skidding using sawtooth tooth, may be implemented Different tube diameters pipeline with separate being fixedly connected for sample bucket；Disengaged structure is used between piston and piston rod, can sufficiently be released Release the gas in Produced Liquid；Using flexible universal joint connecting pipeline, 360 ° of function for swinging connection locking are distinguished at both ends Can, middle part can stretch, be easily installed, and bear pressure height, and safety coefficient is big；Using ball screw reducing friction resistance, just It is used in operator；The bottom for separating sample bucket is equipped with dedicated sampling channel, it may be convenient to enroll oil sample.It simultaneously can be safe Smoothly Remaining Oil And Gas is flow back in process again.What the device was enrolled is the instantaneous hydrogen sulfide content in unit time process, inspection Measured data is accurate.

In the description of the present invention, it should be understood that temporald eixis or positional relationship are based on the figure Orientation or positional relationship is merely for convenience of description the utility model, rather than the device or element of indication or suggestion meaning must There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (10)

1. a kind of novel closed gas-liquid sampler, including it is closed push back mechanism, pipeline, positioning mechanism, standard sample detector, Described pipeline one end connects petroleum pipeline sample tap, and the other end connects the closed side wall import for pushing back mechanism lower end threeway, described close Close push back mechanism by positioning mechanism positioning be fixed on petroleum pipeline, the standard sample detector pushes back taking for mechanism with closed Sample mouth connection, which is characterized in that the positioning mechanism includes flyer chain, connection pin shaft, V-arrangement locating piece, sleeve, tightening hand Handle, gland, sliding lock block, fixed closing piece, lock tube, locknut, screw rod, connecting rod, V-arrangement locating piece left side opens up V Shape slot, leading flank open up front guide slot, and trailing flank opens up rear guide groove, and the V-shaped groove of the V-arrangement locating piece is stuck on petroleum pipeline, described Connecting rod left end connects the V-arrangement locating piece right flank middle part, and the connection of connecting rod right end is closed to push back mechanism, and the lock tube opens up The chain through hole of left and right perforation and the locking hole of front and back perforation, constitute interconnected cross hole path, under the locking hole Fixed closing piece is installed at end, installs gland in lock tube front end face, gland center opens up threaded hole, and handle stud is mounted on the spiral shell of gland In pit, handle stud inner end connection sliding lock block is protruded into locking hole, and handle stud outer end connects tightening handle, described board-like Chain front end passes through the front guide slot of V-arrangement locating piece, is then passed through the chain through hole of lock tube, flyer chain is clamped and fixed in sliding Between closing piece and fixed closing piece, the lock tube left side leans against front guide slot right side, and the flyer chain rear end passes through connecting pin The left end of the hinged screw rod of axis, the screw rod are threaded through in the rear guide groove and sleeve centre bore of V-arrangement locating piece simultaneously, cover on screw rod Locknut is filled, locknut left end holds out against sleeve right side, and the sleeve left side leans against rear guide groove right side, described Flyer chain and V-arrangement locating piece are held tightly on petroleum pipeline outer circle wall simultaneously.

2. a kind of novel closed gas-liquid sampler according to claim 1, which is characterized in that open the lock tube left side It sets up defences slide saw tooth, the V-arrangement locating piece front guide slot right side also opens up adaptable anti-skidding sawtooth, i.e., lock tube left side is anti-skidding Sawtooth card is on the anti-skidding sawtooth of V-arrangement locating piece front guide slot right side；The sleeve left side opens up anti-skidding sawtooth, the V Guide groove right side also opens up adaptable anti-skidding sawtooth after shape locating piece, i.e. the anti-skidding sawtooth card of sleeve left side is fixed in V-arrangement After the block of position on the anti-skidding sawtooth of guide groove right side.

3. a kind of novel closed gas-liquid sampler according to claim 1 or 2, which is characterized in that the lock tube opens up Screw hole, screw hole install fastening screw, and the fixed closing piece is fixed by the fastening screw, and the gland is solid by screw It is scheduled on lock tube leading flank, the screwed hole of centre or directly welding that screw thread type connection V-arrangement locating piece in the connecting rod left end opens up In V-arrangement locating piece right flank middle part, the connecting rod right end and the closed mechanism that pushes back are welded.

4. a kind of novel closed gas-liquid sampler according to claim 1 or 2, which is characterized in that described closed to push back Mechanism includes cylinder body, piston, ball screw, ball nut, end cap, and the piston is mounted on inner chamber of cylinder block, and piston upper surface is opened If groove, nonmetallic set is inlayed in groove, the cylinder body has upper port and lower port, and the cylinder body upper port fixes end cap, End cap central bore installs ball nut, and the ball screw is coupled with ball nut, and ball screw lower end is set with angular contact Bearing, angular contact bearing can protrude into nonmetallic set downwards, and the cylinder side wall opens up air hatch, and air hatch installation sample tap connects Head, the vertical range of air hatch to ball nut bottom end are greater than depth pistion, and the cylinder body lower port connects lower contact, lower contact It is suitable for reading to connect threeway, mouth connects liquid sampling valve under threeway.

5. a kind of novel closed gas-liquid sampler according to claim 4, which is characterized in that the end cap screw-type connects Cylinder body upper port is connect, the ball nut opens up gas vent up and down, the work by the fixed end cap of mounting screw, end cap Sealing ring is arranged in wall beyond the Great Wall, seals with inboard wall of cylinder block.

6. a kind of novel closed gas-liquid sampler according to claim 4, which is characterized in that the ball screw lower end Outer wall clamps baffle ring, and baffle ring blocks angular contact bearing lower end surface.

7. a kind of novel closed gas-liquid sampler according to claim 1 or 2, which is characterized in that the pipeline is to stretch Contracting universal joint connecting pipeline, the flexible universal joint connecting pipeline include flexible pipe assembly, globe joint one, globe joint Two, the flexible pipe assembly right end connects globe joint one, and one right end of globe joint connects the import of threeway side wall by box cupling one, The flexible pipe assembly left end connects globe joint two, and two left end of globe joint connects 360 ° of turning gland lower rights by box cupling two Mouthful, the oil transportation tube valve on the upper right mouth connection petroleum pipeline of 360 ° of turning glands.

8. a kind of novel closed gas-liquid sampler according to claim 7, which is characterized in that the flexible pipe assembly packet The casing being set in together, telescoping tube are included, described sleeve pipe right end screw thread type connects tightening gland one, and casing right side opens up ball Face, tightening gland one open up centre bore, and one centre bore internal diameter of tightening gland is less than the bulb diameter of shape connector one, shape connector one Bulb is protruded into tightening gland one and is bonded with the spherical surface of casing right side；Telescoping tube left end screw thread type connects tightening gland Two, telescoping tube left side opens up spherical surface, and tightening gland two opens up centre bore, and two centre bore internal diameter of tightening gland is less than shape connector two Bulb diameter, the bulb of shape connector two protrudes into tightening gland two and is bonded with the spherical surface of telescoping tube left side.

9. a kind of novel closed gas-liquid sampler according to claim 8, which is characterized in that the installation of described sleeve pipe inner wall Sealing ring is sealed with flexible pipe outer wall, and described sleeve pipe left end screw thread type connects locking nut, is covered between locking nut and telescoping tube Fill cone locking ring.

10. a kind of novel closed gas-liquid sampler according to claim 1, which is characterized in that the standard sample inspection Surveying device includes detector cylinder body, detector piston, quick coupling, test strobe, sample pipe, the sample infratubal port connecting detection device Cylinder body upper port, sample pipe upper port connect lock nut, and suit locking gum cover outside lock nut, the quick coupling outlet connects Radial first hole that logical sample pipe opens up, the test strobe are connected on radial second hole that sample pipe opens up, lock nut with than The connection of colour tube plug.