CN208330326U - SAGD well big orifice crosses pump wellhead assembly - Google Patents

Abstract

The utility model provides a kind of SAGD well big orifice and crosses pump wellhead assembly, comprising: blowout preventer structure has the vertical oil channel being connected and a horizontal production channel, the lower end of the vertical oil channel have can connected pipes connecting hole；Adapter flange, is connected to the lower end of the blowout preventer structure, the internal channel that there is the adapter flange internal diameter to be greater than 176mm, and the oil pipe protrudes into the internal channel；Boll-weevil hanger is socketed on the oil pipe, and can be sealed in the inner wall of the adapter flange；In the state that the boll-weevil hanger is above mentioned or transferred with the oil pipe, the boll-weevil hanger can radially-inwardly shrink and separate with the inner wall of the adapter flange.The SAGD well big orifice of the utility model crosses pump wellhead assembly, can effectively reduce upside-down mounting well head number and time, reduces labor intensity, improves work production efficiency.

Description

SAGD well big orifice crosses pump wellhead assembly

Technical field

The utility model relates to workover treatment technical field more particularly to a kind of SAGD (Steam Assisted Gravity Drainage, steam assisted gravity drainage) well big orifice crosses pump wellhead assembly.

Background technique

Currently, the common oil well pump of SAGD well is 140 pumps (i.e. diameter of plunger be 140mm pump), outer diameter 153mm. Due to production requirement, the big pump in the 150 of tripping at present (i.e. diameter of plunger be 150mm pump) and 160 pumps greatly that (i.e. diameter of plunger is The pump of 160mm), outer diameter is gradually expanded to 170mm and 176mm, and the major diameters such as these Special Pumps tool cannot pass through existing The well head variable diameter of some SAGD wells is shorted, in addition, the oil pipe of existing SAGD well, which is typically hung from, is connected to well head variable diameter short circuit Hanger on；It is short due to needing frequent upside-down mounting to dismantle well head variable diameter repeatedly when dismounting major diameter Special Pump in operation process It connects, therefore well head is chronically at runaway condition, that is, is unable to safety work, and large labor intensity, has an effect on construction speed.

Utility model content

The purpose of the utility model is to provide a kind of SAGD well big orifices to cross pump wellhead assembly, can effectively reduce upside-down mounting well head Number and time reduce labor intensity, improve work production efficiency.

Following technical proposal can be used to realize in the above-mentioned purpose of the utility model:

The utility model provides a kind of SAGD well big orifice and crosses pump wellhead assembly comprising:

Blowout preventer structure has the vertical oil channel being connected and horizontal production channel, the vertical oil channel Lower end have can connected pipes connecting hole；

Adapter flange, is connected to the lower end of the blowout preventer structure, and the adapter flange has internal diameter greater than 176mm's Internal channel, the oil pipe protrude into the internal channel；

Boll-weevil hanger is socketed on the oil pipe, and energy sealing paste is set to the inner wall of the adapter flange；Described In the state that boll-weevil hanger is above mentioned or is transferred with the oil pipe, the boll-weevil hanger can radially-inwardly shrink and with the change The inner wall of diameter flange separates.

In the embodiments of the present invention, the boll-weevil hanger has inner cylinder and is set in outside the inner cylinder Packing element, the inner cylinder are socketed on the outer wall of the oil pipe, and the packing element can be sealed with the inner wall of the adapter flange and is sticked, described Intermediate cylinder is folded between inner cylinder and the packing element, the upper end of the intermediate cylinder is connected with the upper end of the inner cylinder, the centre The lower end of cylinder is along the circumferential direction formed with multiple elastic slices, and multiple steel are folded between the packing element and the upper end of the intermediate cylinder Ball is folded with elastic component between the inner cylinder and the lower end of the intermediate cylinder.

In the embodiments of the present invention, in the state that the boll-weevil hanger is above mentioned or transferred with the oil pipe Under, the multiple steel ball squeezes the multiple elastic slice under gravity, and the multiple elastic slice is radially-inwardly shunk, the steel Ball is fallen between the lower end of the intermediate cylinder and the packing element.

In the embodiments of the present invention, the elastic slice with a thickness of 0.2mm~0.3mm.

In the embodiments of the present invention, the elastic component includes multiple compressed springs, multiple compressed springs It is circumferentially disposed between multiple elastic slices of the intermediate cylinder and the inner cylinder.

In the embodiments of the present invention, the internal diameter of the internal channel is D, then has 176mm < D≤180mm.

The characteristics of SAGD well big orifice of the utility model crosses pump wellhead assembly and advantage are: the SAGD well big orifice crosses pump Wellhead assembly can be such that major diameter tool passes through, and not have to upside-down mounting wellhead assembly repeatedly, save the activity duration, improve production Timeliness reduces well control risk, and scene is easy to use, alleviates the labor intensity of worker.The SAGD well big orifice crosses pump sump mouth dress The large-diameter extractions oil pumps such as 150 pumps, 160 pumps can be met by, which setting, passes through well head；In addition, the SAGD well big orifice crosses pump wellhead assembly Oil pipe is hung using screw thread in blowout preventer structure, and by boll-weevil hanger support oil pipe, which has shared one The power of part blowout preventer structure suspension oil pipe, it can be ensured that it is smoothly unobstructed that realization removes large-diameter extraction oil pump, realizes well head one Change, convenient and fast connection, safety coefficient is high.

Detailed description of the invention

It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings.

Fig. 1 is the structural schematic diagram that the SAGD well big orifice of the utility model crosses pump wellhead assembly.

Fig. 2 is the structural schematic diagram of the boll-weevil hanger of the utility model.

Fig. 3 is the A-A of Fig. 2 to sectional view.

Drawing reference numeral explanation: 1, blowout preventer structure；11, vertical oil channel；12, horizontal production channel；13, it connects Hole；14, ring flange；15, position；16, sealing ring；2, adapter flange；21, internal channel；22, ring flange；23, ring flange；3, oily Pipe hanger；31, inner cylinder；32, packing element；33, intermediate cylinder；331, elastic slice；34, steel ball；35, elastic component；351, compressed spring；4, Oil pipe.

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.

As shown in Figure 1, the utility model, which provides a kind of SAGD well big orifice, crosses pump wellhead assembly comprising: well head is anti- Spray structure 1, adapter flange 2 and boll-weevil hanger 3, in which: blowout preventer structure 1 has 11 He of vertical oil channel being connected Horizontal production channel 12, the lower end of the vertical oil channel 11 have the connecting hole 13 of energy connected pipes 4；Adapter flange 2 connects Connect the internal channel 21 that in the lower end of the blowout preventer structure 1, the adapter flange 2 there is internal diameter to be greater than 176mm, the oil pipe 4 protrude into the internal channel 21；Boll-weevil hanger 3 is socketed on the oil pipe 4, and can be sealed in the interior of the adapter flange 2 Wall；In the state that the boll-weevil hanger 3 is above mentioned or transferred with the oil pipe 4, the boll-weevil hanger 3 can be received radially-inwardly It contracts and is separated with the inner wall of the adapter flange 2.

Specifically, blowout preventer structure 1 is substantially in cylindrical, certainly, according to actual needs, the blowout preventer structure 1 It is also designed to cuboid, herein with no restrictions.Vertical oil channel 11 and horizontal production are equipped in the blowout preventer structure 1 Channel 12, wherein horizontal production channel 12 is connected with vertical oil channel 11；It is formed in the lower end of vertical oil channel 11 Connecting hole 13, in the present embodiment, the connecting hole 13 are threaded hole, are used to outstanding connect oil pipe 4.The crude oil produced from underground passes through It flows into horizontal production channel 12 and is produced to ground after oil pipe 4, vertical oil channel 11.In the present embodiment, the well head is anti- It can be connected with valve in spray structure 1, which may be provided at the position 15 between vertical oil channel 11 and connecting hole 13, It is used to open or closes vertical oil channel 11.

Adapter flange 2 is connected to the lower end of blowout preventer structure 1, and in the present embodiment, the lower end of blowout preventer structure 1 is set There is ring flange 14, the upper end of adapter flange 2 is equipped with ring flange 22, by the connection of ring flange 22 and ring flange 14, realizes variable diameter The connection of flange 2 and blowout preventer structure 1；Further, in order to guarantee that adapter flange 2 and the connection of blowout preventer structure 1 are close Feng Xing is equipped with sealing ring 16 between ring flange 22 and ring flange 14.

In the present embodiment, adapter flange 2 has internal channel 21, and the internal diameter of the internal channel 21 is to lead to greater than in 176mm Road, so as to major diameter tool, such as outer diameter is the large-diameter extraction oil pump of 170mm or 176mm, can pass through the adapter flange 2, therefore when replacing major diameter tool, it is not required to dismantle the adapter flange repeatedly in well head, that is, can reach makes large-diameter extraction oil pump Smoothly go into the well or act the purpose of well head, in the present embodiment, the internal diameter of the internal channel 21 is D, then have 176mm < D≤ 180mm。

As shown in Fig. 2, the packing element 32 that boll-weevil hanger 3 has inner cylinder 31 and is set in outside inner cylinder 31, inner cylinder 31 is socketed In the outer wall of oil pipe 4, packing element 32 can be sealed with the inner wall of adapter flange 2 and is sticked；In being folded between inner cylinder 31 and packing element 32 Between cylinder 33, the upper end of the intermediate cylinder 33 is connected with the upper end of inner cylinder 31, and the lower end of the intermediate cylinder 33 is along the circumferential direction formed with more A elastic slice 331, is folded with multiple steel balls 34 between packing element 32 and the upper end of intermediate cylinder 33, the lower end of inner cylinder 31 and intermediate cylinder 33 it Between be folded with elastic component 35.In the present embodiment, the thickness of the elastic slice 331 of intermediate cylinder 33 can be 0.2mm~0.3mm.

Further, in the present embodiment, please refer to shown in Fig. 3, which includes multiple compressed springs 351, multiple compressed springs 351 are circumferentially disposed between multiple elastic slices 331 of intermediate cylinder 33 and inner cylinder 31.

When boll-weevil hanger 3 is above mentioned or transferred with oil pipe 4, multiple steel balls 34 can squeeze multiple bullets under gravity Piece 331, multiple elastic slices 331 are radially-inwardly shunk, and steel ball 34 is fallen into immediately between the lower end of intermediate cylinder 33 and packing element 32, Ye Jigang Ball 34 is fallen between multiple elastic slices 331 and packing element 32, at this point, packing element 32 is no longer squeezed by elastic component 35 and multiple steel balls 34 Pressure, and be detached from sealing contact with the inner wall of adapter flange 2.

The SAGD well big orifice cross pump wellhead assembly use process is as follows:

Installation process: being mounted on well head for adapter flange 2 first, namely real by the ring flange 23 of 2 lower end of adapter flange The connection of existing adapter flange 2 and well head；Later from 21 tripping in large-diameter extraction oil pump of the internal channel of adapter flange 2, by large-diameter extraction Oil pump is connect with oil pipe 4, after being socketed boll-weevil hanger 3 on oil pipe 4, will be connected to the 4 tripping in variable diameter method of oil pipe of boll-weevil hanger 3 In the internal channel 21 of orchid 2, multiple steel balls 34 of boll-weevil hanger 3 and elastic component 35 are in initial position namely Fig. 2 institute at this time The positional structure shown, the 32 energy sealing paste of packing element of boll-weevil hanger 3 is set to the inner wall of adapter flange 2 at this time, to block oil Annular space between pipe 4 and adapter flange 2；Then the connecting hole 13 of blowout preventer structure 1 is connected with oil pipe 4, and well head is prevented The ring flange 14 of spray structure 1 is sealedly connected on the ring flange 22 of adapter flange 2, is completed SAGD well big orifice at this time and is crossed pump sump mouth The installation of device can carry out subsequent oil producing operation.

Disassembly process: when needing replacing large-diameter extraction oil pump, rotary portal blowout prevention structure 1, certainly by blowout preventer structure 1 It is removed on oil pipe 4, above mentions oil pipe 4 later, during multiple steel balls 34 in boll-weevil hanger 3 can squeeze under gravity at this time Between cylinder 33 multiple elastic slices 331, and then shrink the packing element 32 of boll-weevil hanger 3 radially-inwardly, boll-weevil hanger 3 can be at this time The inner wall of adapter flange 2 separates, so that oil pipe 4 and large-diameter extraction oil pump connected to it are proposed well head.

The SAGD well big orifice of the utility model crosses pump wellhead assembly, and major diameter tool can be made to pass through, and does not have to repeatedly The upside-down mounting wellhead assembly saves the activity duration, improves production timeliness, reduces well control risk, and scene is easy to use, alleviates worker Labor intensity.

The SAGD well big orifice cross pump wellhead assembly can meet 150 pumps, 160 pump etc. large-diameter extractions oil pump pass through well Mouthful；In addition, the SAGD well big orifice crosses pump wellhead assembly using screw thread suspension oil pipe 4 in blowout preventer structure 1, and pass through oil pipe 3 support oil pipe 4 of hanger, the boll-weevil hanger 3 have shared the power that a part of blowout preventer structure 1 hangs oil pipe 4, it can be ensured that real It is smoothly unobstructed now to remove large-diameter extraction oil pump, realizes well head integration, convenient and fast connection, safety coefficient is high.

The foregoing is merely several embodiments of the utility model, and those skilled in the art is according to disclosed in application documents Content can carry out various changes or modifications without departing from the spirit and scope of the utility model to the utility model embodiment.

Claims (6)

1. a kind of SAGD well big orifice crosses pump wellhead assembly characterized by comprising

Blowout preventer structure, has the vertical oil channel that is connected and a horizontal production channel, under the vertical oil channel Hold the connecting hole with energy connected pipes；

Adapter flange, is connected to the lower end of the blowout preventer structure, and the adapter flange has internal diameter interior logical greater than 176mm Road, the oil pipe protrude into the internal channel；

Boll-weevil hanger is socketed on the oil pipe, and energy sealing paste is set to the inner wall of the adapter flange；In the oil pipe In the state that hanger is above mentioned or is transferred with the oil pipe, the boll-weevil hanger can radially-inwardly shrink and with the variable diameter method Blue inner wall separation.

2. SAGD well big orifice as described in claim 1 crosses pump wellhead assembly, which is characterized in that the boll-weevil hanger has Inner cylinder and the packing element being set in outside the inner cylinder, the inner cylinder are socketed on the outer wall of the oil pipe, the packing element can with it is described The inner wall sealing of adapter flange is sticked, and is folded with intermediate cylinder between the inner cylinder and the packing element, the upper end of the intermediate cylinder with The upper end of the inner cylinder is connected, and the lower end of the intermediate cylinder is along the circumferential direction formed with multiple elastic slices, the packing element and it is described in Between cylinder upper end between be folded with multiple steel balls, be folded with elastic component between the inner cylinder and the lower end of the intermediate cylinder.

3. SAGD well big orifice as claimed in claim 2 crosses pump wellhead assembly, which is characterized in that the boll-weevil hanger with In the state that the oil pipe is above mentioned or transferred, the multiple steel ball squeezes the multiple elastic slice under gravity, described more A elastic slice is radially-inwardly shunk, and the steel ball is fallen between the lower end of the intermediate cylinder and the packing element.

4. SAGD well big orifice as claimed in claim 2 crosses pump wellhead assembly, which is characterized in that the elastic slice with a thickness of 0.2mm~0.3mm.

5. SAGD well big orifice as claimed in claim 2 or claim 3 crosses pump wellhead assembly, which is characterized in that the elastic component includes Multiple compressed springs, multiple compressed springs be circumferentially disposed in the intermediate cylinder multiple elastic slices and the inner cylinder it Between.

6. SAGD well big orifice as described in claim 1 crosses pump wellhead assembly, which is characterized in that the internal diameter of the internal channel is D then has 176mm < D≤180mm.