CN1048579A - Combined multifunctional oil wellhead assembly - Google Patents
Combined multifunctional oil wellhead assembly Download PDFInfo
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- CN1048579A CN1048579A CN 90102245 CN90102245A CN1048579A CN 1048579 A CN1048579 A CN 1048579A CN 90102245 CN90102245 CN 90102245 CN 90102245 A CN90102245 A CN 90102245A CN 1048579 A CN1048579 A CN 1048579A
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- tubing hanger
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- wellhead assembly
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Abstract
The present invention is a kind of multifunctional assembled wellhead for production that is used for being installed on the oil well sleeve flange.This device is mainly by the four-way main body, tubing hanger assembly and well mouth sealing device constitute, tubing hanger is divided into three types, well mouth sealing device is divided into two types, different tubing hanger assemblies and well mouth sealing device and four-way main body are combined, just can constitute the common wellhead assembly of oil pumper respectively, the annulus logging wellhead assembly has bar rotary pump wellhead assembly and submersible electric pump well head device etc.This device compound mode is easy, and well head compliance is strong, and can reduce a large amount of engineering amount of reform.
Description
The present invention relates to a kind of wellhead assembly of producing well, this device can be used as polytype oil well, as mechanical oil well, and flowing well and water injection well.This wellhead assembly mainly is made of four-way bulk oil pipe hanger assembly and well mouth sealing device.The tubing hanger assembly is divided into three types, well mouth sealing device is divided into two types, different tubing hanger assemblies and well mouth sealing device and four-way main body combined just can constitute the common wellhead assembly of oil pumper respectively, the annulus logging wellhead assembly has bar rotary pump wellhead assembly and submersible electric pump well head device etc.
Existing flowing well wellhead for production is clamping hoop type production tree or flange form production tree, and its basic structure is made up of sleeve pipe big four and the little four-way of oil pipe and several high pressure gates.The oil pipe of this device and four-way junction of casing are provided with respectively up and down, and oil discharge passage all is located at more than the tubing hanger, when each workover treatment or change oil production method, all must tear down and reconstruct the well head flow process, lay down the oil pipe flange with top, and workload is very big, time-consuming.
In the mechanical oil recovery process, usually because CHF is just being installed not or the distortion in the use, the well head that causes pumpingh well is not just.In order to adjust the deflection of taking out the well well head, a lot of inventors design various types of well head device for adjusting deviation.Provide a kind of device that is used to correct pumpingh well well head deflection as CN88217184, but the deflection-regulating range of this class device is limited, and can't solves the problem of casing head and well head deflection.
In the mechanical oil recovery process, need carry out annulus logging to oil well, to obtain the various parameters in the stratum.For this test, need to install special wellhead assembly.As a kind of eccentric wellhead with two rotary systems that CN88100168 provides, the oil pipe passage of this well head also is arranged on more than the tubing hanger, and this just can not provide more effective unfreezing condition for downhole probe.And what install on the annulus logging passage in the prior art all is conventional gate valves, the size-constrained system of the test space, and whole device profile is tall and big, and this device is very inconvenient to test operation.
The well head packing box of the device of existing well head directly seals lifting arm, and is after the lifting arm surface is gone out vestige by the clamp card, very serious to the airtight and watertight padding wearing and tearing.Rubber seal filler commonly used is short application life, when wellhead for production during to oil pumper suspension point decentraction, has more aggravated the wearing and tearing to airtight and watertight padding.Existing have bar rotary pump wellhead assembly also owing to the vibration of pump rod, and the bar surface not only makes packing_seal bad, and leakage is serious.At present, the various wellhead for production specification patterns after the repacking differ, and setting height(from bottom) is all than higher, and this is to production management, and installation and maintenance are all inconvenient.
One of purpose of the present invention provides a kind of multifunctional assembled mechanical oil recovery well head device.This device can be according to the needs that well head is installed, aggregate erection, and when earthquake oil production method or workover treatment, the well head flow process does not need dismounting.When the repacking wellhead for production,, just can constitute the common wellhead assembly of oil pumper respectively as long as change corresponding tubing hanger assembly and well mouth sealing device; Oil pumper annulus logging wellhead assembly; Bar rotary pump wellhead assembly or submersible electric pump well head device are arranged.This wellhead assembly can also replace the wellhead for production of flowing well and the wellhead assembly of water injection well in addition.This device compound mode is easy, and well head compliance is strong, can reduce a large amount of engineering amount of reform.
Two of purpose of the present invention provides a kind of device that can prevent and adjust mechanical oil well well head deflection.This wellhead assembly does not need to install any other device for adjusting deviation, and just utilizes the spherical steel ring that is installed between CHF and the four-way flange, just can solve the well head deflection problem of pumpingh well.
Three of purpose of the present invention provides the annulus logging wellhead assembly that a kind of oil pipe can be done the eccentric revolution of 360 degree, and the oil pipe oil discharge passage of this device all is arranged on below the tubing hanger, and it can be downhole probe more convenient, more effective unfreezing condition is provided.The annulus logging passage of this device is provided with latent type valve in addition, and this valve is not only simple in structure, and fitting operation is very convenient.
Four of purpose of the present invention provides the well mouth sealing device of two kinds of better tightness, a kind of is sleeve type reciprocating lever sealing mechanism, another kind is a sleeve type swingle sealing mechanism, this mechanism is provided with special-purpose sliding sleeve on sucker rod and rotation pump rod, to keep the excellent sealing of packing, the carbon fibre airtight and watertight padding of this mechanism's employing in addition, it is an economy and durability, can prolong the sealing phase again.
According to combined multifunctional oil wellhead assembly provided by the present invention, this device comprises a four-way, one pair of tubing hanger assembly and a well mouth sealing device.Four-way of the present invention and existing four-way difference are to be provided with sleeve channel and oil pipe passage in the four-way main body simultaneously, but two passages are not overlapping, and the tubing and casing outlet is symmetrical arranged; CHF and four-way lower flange connect the structure that adopts the sphere steel ring, tubing hanger is total or be arranged in the four-way central passage, and by a plane steel ring the big flange of the tubing hanger assembly upper flange surface with four-way is sealed.The tubing hanger assembly is designed to three kinds of forms, and they are that concentric oil tubes is hung assembly, and the eccentric annulus rotation pipeline is hung assembly and cable seal tubing hanger assembly.Well mouth sealing device is designed to two kinds of forms, and they are sleeve type reciprocating lever sealing mechanism and sleeve type swingle sealing mechanism.By above-mentioned different assembly, can constitute the common wellhead assembly oil pumping of oil pumper respectively, machine annulus logging wellhead assembly, swingle pump sump mouth device and submersible electric pump well head device etc.
Fig. 1 is an oil pumper annulus logging wellhead assembly structural representation.
Fig. 2 is the A-A profile of Fig. 1, also is stealthy valve floor map simultaneously.
Fig. 3 is the common well head apparatus structure of an oil pumper schematic diagram.
Fig. 4 is for there being bar rotary pump wellhead assembly structural representation.
Fig. 5 is Fig. 4 D-D profile.
Fig. 6 is Fig. 4 E-E profile.
Fig. 7 is a submersible electric pump well head apparatus structure schematic diagram.
Fig. 8 is Fig. 7 F-F profile.
Fig. 9 is a sleeve type reciprocating lever sealing mechanism structural representation.
Below in conjunction with accompanying drawing the present invention is done to describe in detail: the center major path of four-way main body 5 is smooth faces of cylinder 7 as can be seen from Figure 1,7 bottom is a smooth taper seat 8 on the face of cylinder, flange face on the four-way main body 5 be two to overhanging arm, one of them is oil pipe outlet 8, another is sleeve pipe outlet 10, the endoporus of oil pipe outlet is perpendicular to the top on the smooth face of cylinder 7, constitute oil pipe passage 9, the endoporus of sleeve pipe outlet turns round and tilts to lead to the bottom of smooth taper seat 8, forming sleeves passage 11.The centre bore 4 of the lower flange face 14 of four-way main body 5 is a sphere, and the sphere steel ring 2 on the CHF 1 matches with four-way lower flange sphere centre hole 4, constitutes spherical aligning hermetically-sealed construction.The first half of sphere steel ring 2 is a sphere, and Lower Half is the ordinary steel loop-shaped, on the sphere steel ring seal groove is arranged, and flexible seal ring 3 is housed in the groove.Be provided with conventional steel ring slot on the upper flange surface 15 of four-way, plane steel ring 17 is housed in steel ring slot, there is seal groove on the last plane of this steel ring, and flexible seal ring 18 is housed in the groove.
Fig. 1 is described to be the annulus logging wellhead assembly structural representation that eccentric oil pipe is hung assembly and sleeve type reciprocating lever sealing mechanism and the combination of four-way main body.The eccentric annulus rotation pipeline is hung assembly mainly by rotary body 20, and 21 liang big parts of big flange are formed.Big flange 21 is supported rotary body 20 by bearing 22, and the formation activity connects.Simultaneously big flange by 17 on plane steel ring on the upper flange surface 15 of four-way main body 5.Major path 23 with its center line parallel is arranged on the rotary body 20, and there is screw thread at the two ends of passage, and last screw thread is used for connecting sleeve type reciprocating lever sealing mechanism 60, and following screw thread is used for connecting down-hole oil tube.Through hole 13 on the rotary body communicates with oil pipe passage 9 on the four-way main body 5.Parallel with the rotary body center also have an annulus logging passage 19, and this passage top is provided with stealthy valve 24, and this valve is by valve body 24, valve plate 25, and floating plug 28, driven wheel 26 and supporting positive cover 27 constitute.As can be seen, valve body 24 is fixed on the rotary body 20 from Fig. 1, Fig. 2, and driven wheel 26 actuatable valve plates 25 rotate around supporting positive cover 27.Two through holes 29,30 are arranged on the valve plate, in one of them through hole 30 floating plug 28 is housed, driven wheel 26 forwards on another through hole 29 valve plate 25 to, and when aliging with annulus logging passage 19, valve is opened, and tester is thus under the lower going-into-well.When driven wheel 26 made valve plate 25 turn to floating plug 28 with annulus logging passage 19 centerings, valve cut out.
Accompanying drawing 3 is that concentric oil tubes is hung the common well head apparatus structure of the oil pumper schematic diagram after assembly 40 makes up with sleeve type reciprocating lever sealing mechanism 60 and four-way main body 5.With reference to Fig. 3 as can be seen, concentric oil tubes extension assembly is made of big flange 41 and tubing hanger main body 40.Connect for movable sealing between big flange 41 and the tubing hanger main body 40.The flange endoporus keeps certain sliding distance on the fitting face of tubing hanger main body 40, and spacing to string on the tubing hanger.Between big flange 41 and the four-way upper flange surface 15 is plane steel ring 17, and big flange 41 is the plane with the bonding surface of plane steel ring 17, makes it not hinder tubing hanger main body and four-way main body centering.The top that hangs at concentric oil tubes is connected to sleeve type reciprocating lever sealing mechanism 60.
Accompanying drawing 4 is swingle pump sump mouth apparatus structure schematic diagrames that concentric oil tubes is hung assembly 42 and sleeve type swingle sealing mechanism 41 and 5 combinations of four-way main body.As can be seen from the figure sleeve type swingle sealing mechanism 41 is mainly by sliding sleeve 44, and sliding sleeve fixed mechanism 34 balls strand closed chamber 43 is formed.Sliding sleeve 44 fixes by sliding sleeve fixed mechanism and rotation pump rod 47, the special sliding sleeve 44 of smooth in appearance together rotates with swingle pump 47, keep rotatory sealing with ball strand closed chamber 43, and ball strand closed chamber to a certain extent servo-actuated in swingle 47, thereby eliminated the eccentric wear of sliding sleeve, the sealing performance of well head is improved airtight and watertight padding.Airtight and watertight padding is a carbon fibre, anti-wear performance is good, and only fill out and do not draw, filler is fully utilized, as can be seen from Figure 5, sliding sleeve fixed mechanism 34 is made up of the slips 46 of slip sleeve 45 and " C " type section, the groove width of slips is less than the diameter of swingle 47, and slips is passed torsion, slip sleeve 45 lower end square grooves and sliding sleeve 44 tops by corner angle 48 and swingle 47 contacts, square column matches, and transmits torsion.
What accompanying drawing 7 was described is the submersible electric pump well head apparatus structure schematic diagram that cable seal tubing hanger assembly 51 and four-way spare 5 are combined.As can be seen from the figure cable seal tubing hanger assembly 51 is mainly by sealing flange 30, flange seal assembly 31 and four-way black box 32, and tubing hanger main body 51 and gland 50 are formed.Four-way black box 32 is arranged between the smooth face of cylinder 7 and tubing hanger main body 51 of four-way main body 5; Flange seal assembly 31 is arranged between sealing flange 30 and the tubing hanger main body 51, and is compressed by gland 50.Tubing hanger main body 51 is abdicated certain space cable 36 is set with respect to sealing flange 30 and four-way main body 5 off-centre, and cable aperture is parallel with tubing hanger main body 51, and tubing hanger main body 51 is provided with through hole 35, and this through hole communicates with oil pipe passage 9 on the four-way main body 5.Two steps 57,58 are up and down arranged at the bottom of tubing hanger main body 51, and these two steps can press four-way black box 32 to move up and down.
What accompanying drawing 8 was described is flange seal assembly 31 and four-way black box 32 cross-sectional view.As can be seen from the figure black box is by cover plate 54, and sealing film 52 and patch constitute.That this accompanying drawing is described is the embodiment of three cables.Have the breach 56 of dress cable on the cover plate 54, patch 53 and cover plate 54 are chimeric and keep and seal the film 52 smooth patch 53 that contact and be fixed on the cover plate 54 by sinking to screw 55.This tubing hanger good sealing effect, the well head setting height(from bottom) is very low, can avoid cable to be taken place by the disconnected accident of card for perforation, and bring great convenience to operation.
What accompanying drawing 8 was described is sleeve type reciprocating lever sealing mechanism schematic diagram, and as can be seen from the figure sleeve type reciprocating lever sealing mechanism 60 is mainly by sliding sleeve 61, sliding sleeve fixed mechanism 62, and sliding sleeve primary seal chamber 63, secondary closed chamber 64 of sliding sleeve and emergent closed chamber 78 constitute.Sliding sleeve 61 is fixed on the oil pumper lifting arm 65 by sliding sliding sleeve fixed mechanism 62, and fixed mechanism 62 is mainly by slips 66, slip spider 67, and seal receptacle 68, closed chamber 69, rotation key and opposite opened safety cutting ferrule 71 constitute.Opposite opened safety cutting ferrule 71 connects together slip spider 67 and seal receptacle 68 by two step 72.When prevention overloaded adjusting improper, safe cutting ferrule was broken, and the protection other pieces are avoided loss, prevent that contingency from taking place.Primary seal chamber 63 is used for once sealing, and secondary closed chamber 64 is used for secondary seal, and its airtight and watertight padding is a carbon fibre, and this filler only adds to be drawn, and this can make filler be fully utilized.The filler of emergent closed chamber 78 is the oil resistant rubber piece, is in relaxed state at ordinary times, backs out gland 73 during urgent need, and the compressing rubber piece replaces top major-minor closed chamber pressure-bearing, and gland 73 is spacing by the plurality of steel balls 75 in housing 74 inner grooves.Avoid adjusting error and throw off.There is the head 76 of diameter greater than the sliding sleeve external diameter lower end of sliding sleeve 61, and there is smooth seal face 77 the head upper end, and its effect one is to prevent that sliding sleeve is drawn out, and the 2nd, when smooth seal face 77 contacts with housing 74, play sealing function.This sleeve type reciprocating lever sealing device 60 cooperates eccentric annulus test oil pipe hanger and constitutes the eccentric testing wellhead assembly, cooperates concentric oil tubes extension assembly and constitutes the common wellhead assembly of oil pumper.
Claims (12)
1, a kind of combined multifunctional oil wellhead assembly, this wellhead assembly comprises a four-way, one pair of tubing hanger assembly and a well mouth sealing device, it is characterized in that being provided with simultaneously in the four-way main body of the present invention sleeve channel and oil pipe passage, but two passages are not overlapping, the tubing and casing outlet is symmetrical arranged, CHF and four-way lower flange connect the structure that adopts the sphere steel ring, the tubing hanger assembly is arranged in the four-way central passage, and by of the upper flange surface sealing of a plane steel ring with the big flange and the four-way of tubing hanger assembly, the tubing hanger assembly comprises concentric oil tubes extension assembly, eccentric oil pipe is hung assembly and three kinds of forms of cable seal tubing hanger assembly, and well mouth sealing device comprises sleeve type reciprocating lever sealing mechanism and sleeve type swingle sealing mechanism.
2, wellhead assembly according to claim 1, it is characterized in that, the center major path of four-way main body is a smooth face of cylinder, in the bottom on the face of cylinder is a smooth taper seat, the upper flange surface of four-way main body be two to overhanging arm, one is the oil pipe outlet, and another is the sleeve pipe outlet, and the endoporus of oil pipe outlet constitutes the oil pipe passage perpendicular to the top on the smooth face of cylinder; The endoporus of sleeve pipe outlet turns round and tilts to lead to the bottom of smooth taper seat, the forming sleeves passage, the centre bore of the lower flange face of four-way main body is a sphere, and the sphere steel ring on the cover head flange matches with four-way lower flange sphere centre hole, constitutes spherical aligning hermetically-sealed construction.
According to claim 1 and 2 described wellhead assemblies, it is characterized in that 3, the first half of sphere steel ring is a sphere, Lower Half is the ordinary steel loop-shaped, and the sphere steel ring has seal groove, and flexible seal ring is housed in the groove.
4, wellhead assembly according to claim 1 is characterized in that, eccentric oil pipe is hung assembly and sleeve type reciprocating lever sealing mechanism and four-way main body and is combined into the annulus logging wellhead assembly.
5, wellhead assembly according to claim 4, it is characterized in that, eccentric oil pipe is hung assembly and is made of rotary body and big flange, major path with its center line parallel is arranged on the rotary body, screw thread is used for connecting sleeve type reciprocating lever sealing mechanism on the passage, following screw thread is used for connecting down-hole oil tube, in addition annulus logging passage parallel with rotary body, and this passage is provided with stealthy valve; Big flange is supported rotary body by bearing, and the formation activity connects, and simultaneously big flange passes through plane steel ring seat on the upper flange surface of four-way main body.
6, wellhead assembly according to claim 5, it is characterized in that the stealthy valve on the annulus logging passage is made of valve body, valve plate, floating plug, driven wheel and supporting positive cover, valve body 24 is fixed on the rotary body, two through holes are arranged on the valve plate, on one of them through hole floating plug is housed.
7, wellhead assembly according to claim 1, it is characterized in that, concentric oil tubes is hung assembly and sleeve type reciprocating lever sealing mechanism and four-way main body combination back and is constituted the common wellhead assembly of oil pumper, concentric oil tubes is hung assembly and is made of big flange 41 and tubing hanger main body 40, for movable sealing connects, the flange endoporus maintains a certain distance on the fitting face of tubing hanger main body between big flange and the tubing hanger main body.
8, wellhead assembly according to claim 1, it is characterized in that, concentric oil tubes is hung assembly and sleeve type swingle sealing mechanism and four-way main body and is combined as swingle pump sump mouth device, sleeve type swingle pump seal mechanism is made of sliding sleeve, sliding sleeve fixed mechanism and ball strand closed chamber, and sliding sleeve fixes by sliding sleeve fixed mechanism and rotation pump rod.
9, wellhead assembly according to claim 8 is characterized in that, the sliding sleeve fixed mechanism is made up of the slips of slip sleeve and " C " type section, and the groove width of slips is less than the swingle diameter.
10, wellhead assembly according to claim 1, it is characterized in that, cable seal tubing hanger assembly and four-way main body consist of submersible electric pump well head device, and the tubing hanger main body of cable seal tubing hanger assembly is with respect to four-way main body off-centre, and cable is parallel with the tubing hanger main body; The four-way black box is arranged between the smooth face of cylinder and tubing hanger main body of four-way main body, and the flange seal assembly is arranged between sealing flange and the tubing hanger main body.
11, wellhead assembly according to claim 1 is characterized in that, sleeve type reciprocating lever sealing mechanism is by sliding sleeve, sliding sleeve fixed mechanism, sliding sleeve primary seal chamber, and secondary closed chamber of sliding sleeve and emergent closed chamber constitute; Sliding sleeve is fixed on the oil pumper lifting arm by fixed mechanism.
12, wellhead assembly according to claim 11, it is characterized in that, the sliding sleeve fixed mechanism is made of slips, slip spider, seal receptacle, closed chamber, rotation key and opposite opened safety cutting ferrule, and opposite opened safety cutting ferrule connects together slip spider and seal receptacle by two step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90102245 CN1015727B (en) | 1990-04-24 | 1990-04-24 | Combined multifunctional oil wellhead assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90102245 CN1015727B (en) | 1990-04-24 | 1990-04-24 | Combined multifunctional oil wellhead assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1048579A true CN1048579A (en) | 1991-01-16 |
| CN1015727B CN1015727B (en) | 1992-03-04 |
Family
ID=4877442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90102245 Expired CN1015727B (en) | 1990-04-24 | 1990-04-24 | Combined multifunctional oil wellhead assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1015727B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806856A (en) * | 2012-11-09 | 2014-05-21 | 中国石油化工股份有限公司 | Ultra-long stroke well head sealing device and sealing method thereof |
| CN106611942A (en) * | 2016-05-11 | 2017-05-03 | 普斐特油气工程（江苏）有限公司 | Electric submersible pump wellhead cable outgoing structure |
| CN107461187A (en) * | 2017-08-28 | 2017-12-12 | 新疆国利衡清洁能源科技有限公司 | Underground coal gasification(UCG) outlet aperture apparatus and go out gas drilling hole |
| CN113107865A (en) * | 2021-04-18 | 2021-07-13 | 深圳景嘉机电科技有限公司 | Multifunctional submersible pump ground control device |
| CN114198044A (en) * | 2021-11-25 | 2022-03-18 | 盐城佰信石油机械有限公司 | Oil field oil extraction wellhead sealing protection method and device |
-
1990
- 1990-04-24 CN CN 90102245 patent/CN1015727B/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806856A (en) * | 2012-11-09 | 2014-05-21 | 中国石油化工股份有限公司 | Ultra-long stroke well head sealing device and sealing method thereof |
| CN106611942A (en) * | 2016-05-11 | 2017-05-03 | 普斐特油气工程（江苏）有限公司 | Electric submersible pump wellhead cable outgoing structure |
| CN107461187A (en) * | 2017-08-28 | 2017-12-12 | 新疆国利衡清洁能源科技有限公司 | Underground coal gasification(UCG) outlet aperture apparatus and go out gas drilling hole |
| CN107461187B (en) * | 2017-08-28 | 2023-03-17 | 新疆国利衡清洁能源科技有限公司 | Coal underground gasification air outlet hole device and air outlet drill hole |
| CN113107865A (en) * | 2021-04-18 | 2021-07-13 | 深圳景嘉机电科技有限公司 | Multifunctional submersible pump ground control device |
| CN114198044A (en) * | 2021-11-25 | 2022-03-18 | 盐城佰信石油机械有限公司 | Oil field oil extraction wellhead sealing protection method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1015727B (en) | 1992-03-04 |
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