CN204283380U - To cement the well oil well intelligent water control pipe post - Google Patents

To cement the well oil well intelligent water control pipe post Download PDF

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Publication number
CN204283380U
CN204283380U CN201420769201.3U CN201420769201U CN204283380U CN 204283380 U CN204283380 U CN 204283380U CN 201420769201 U CN201420769201 U CN 201420769201U CN 204283380 U CN204283380 U CN 204283380U
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CN
China
Prior art keywords
oil
well
packer
intelligent water
water
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420769201.3U
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Chinese (zh)
Inventor
韩燕平
丁保刚
赵恩远
陈蔚鸿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Cathay Pacific Technology Co., Ltd.
Original Assignee
All Way (beijing) Energy Technology Co Ltd
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Priority to CN201420769201.3U priority Critical patent/CN204283380U/en
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Publication of CN204283380U publication Critical patent/CN204283380U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model oil well intelligent water control pipe post of having cemented the well relates to a kind of well cementation completed well water control pipe post.Its objective is to provide one how much can carry out automatically in real time regulating along with each section of down-hole moisture content, the well cementation that the oil-water mixture of restriction High water cut enters oil pipe completes oil well intelligent water control pipe post.The utility model Intelligent water-controlled tubing string comprises oil pipe column, hanging packer, packer and some Intelligent water-controlled short circuits in some pipes, in some pipes, packer interval is connected on oil pipe column, oil pipe column comprises some oil pipes, some Intelligent water-controlled short circuits are alternately connected with oil pipe, each Intelligent water-controlled short circuit is between adjacent two external packer of pipe, Intelligent water-controlled short circuit comprises base tube, self-regulation flow control valve and screen cloth, the circumferential tube wall of base tube offers some valve installing holes, in each valve installing hole, self-regulation flow control valve is installed, screen cloth is fixedly mounted on base tube outside.

Description

To cement the well oil well intelligent water control pipe post
Technical field
The utility model relates to a kind of well cementation completed well water control pipe post, particularly relates to a kind of tubing string adopting Intelligent water-controlled short circuit to realize Intelligent water-controlled.
Background technology
Along with the development of petroleum exploration and development technology, adopt horizontal well technology development of fields, become the effective technology means improving oil recovery rate, well yield, exploitation remaining oil, reduction production cost per tone oil.Horizontal well increases the contact area of pit shaft and oil reservoir, can develop oil sheet or the larger oil reservoir of vertical permeability better, and the effect in exploitation petroleum resources is increasingly important.And domestic water horizontal well majority has entered high water cut rate at present, after horizontal well produces water breakthrough, output has declined rapidly.Most of horizontal wells in some oil field is even just gone into operation with regard to water breakthrough soon, and the oil recovery benefit of horizontal well is had a strong impact on.Horizontal well is due to the particularity of well track, once water outlet is difficult to control.Therefore, each oil field, all in the urgent need to the water outlet of one effective level of control well, increases crude output, extends the water control technique in horizontal well life-span.
At present, the horizontal well water control technique being applied in oil field mainly contains three kinds: one, segmentation variable density screen casing water control technique: this technology is according to the change of Reservoir Permeability, change the Kong Mi of horizontal segment every section screen casing, utilize that different holes is close regulates throttling, adjust well bottom pressure section, for Homogeneous Reservoir, reduce heel end hole close, increase difference pressuring loss; Increase toe-end hole close, reduce difference pressuring loss, to reach balanced production pressure reduction, reduce the object of bottom water coning speed.Two, central tube water control technique: the principle of this technology is on the basis of screen casing, bushing pipe or perforation completion, a minor diameter tubing is hung under horizontal segment, stretch into net horizontal section certain length, and close the annular space between little oil pipe and sleeve pipe with packer, change the flow direction of horizontal well heel end, make pressure traverse and pit shaft inflow profile become mild.Three, ICD water control technique: ICD (Inflow Control Device) is a kind of balanced flow dynamic control device, and equilibrium level section is lost along stroke pressure, obtains the approaches uniformity inflow profile of oil reservoir along horizontal well pit shaft.ICD application of installation is combined with screen casing mostly, and reservoir fluid enters the annular gap between base tube and screen casing through screen casing, flows into ICD device, then enters in base tube and be plucked out of the ground, and reaches balancing flow and controls object.
But, all there are two major defects in these water control techniques currently used: one, how much cannot carry out automatically and in real time regulating according to each section of down-hole oil reservoir moisture content, segmentation variable density screen casing water control technique need according to the change of Reservoir Permeability, and in design level section, the screen casing hole of every section is close in advance; Central tube water control technique must in advance according to reservoir geology feature design centre pipe diameter and the length stretching into horizontal segment; ICD water control technique is also the quantity designing ICD water-control valve according to reservoir geologic characteristic in advance.Two, existing horizontal well water control technique quantitatively can only limit the inflow of down-hole fluid-mixing, is collecting reservoir geology data in advance, carries out deisgn product and tool parameters after data analysis, can reach production profile equilibrium, thus the cone reducing water enters after expecting to go into the well.But in practical application, down-hole state is not stopping change, adopt these control wetting systems existing once tubing string enters well, parameter cannot adjust or change, and does not reach desirable control water effect at all.
Utility model content
The technical problems to be solved in the utility model is to provide one and how much can carries out automatically in real time regulating along with each section of down-hole moisture content, and the well cementation that the oil-water mixture of restriction High water cut enters oil pipe completes oil well intelligent water control pipe post.
The utility model has been cemented the well oil well intelligent water control pipe post, comprise oil pipe column, hanging packer, packer and some Intelligent water-controlled short circuits in some pipes, described oil pipe column hangs the lower end being fixed on protective casing by hanging packer, oil pipe column is positioned at production casing, described oil pipe column comprises some oil pipes, in described some pipes, packer interval is connected on oil pipe column, and the contact internal walls of packer and production casing seals in pipe, in adjacent two pipes, packer will be separated into some control water sections between oil pipe column and production casing, perforated interval on each control water Duan Douyu production casing is corresponding, described Intelligent water-controlled short circuit is alternately connected successively with oil pipe, each Intelligent water-controlled short circuit is in adjacent two pipes between packer, corresponding with the perforated interval on production casing, Intelligent water-controlled short circuit comprises base tube, self-regulation flow control valve and screen cloth, the two ends of described base tube are connected with oil pipe respectively, the circumferential tube wall of base tube offers some valve installing holes, in each valve installing hole, self-regulation flow control valve is installed, described screen cloth is fixedly mounted on base tube outside, filtrate runner is formed between screen cloth and base tube, described filtrate runner is connected with the inlet of self-regulation flow control valve.
The utility model has been cemented the well oil well intelligent water control pipe post, in wherein said pipe packer be mechanical packer, hydraulic packer or meet oil/water inflatable packer.
The utility model has been cemented the well oil well intelligent water control pipe post, and it is outside that wherein said screen cloth covers self-regulation flow control valve, and the two ends of screen cloth are fixedly connected with by retainer ring with between base tube.
The utility model has been cemented the well oil well intelligent water control pipe post, is provided with guide shoe bottom wherein said oil pipe column.
The utility model has been cemented the well oil well intelligent water control pipe post, and wherein said oil well is horizontal well or straight well.
The utility model oil well intelligent water control pipe post difference from prior art of having cemented the well is, the utility model oil well intelligent water control pipe post of having cemented the well adopts packer in some pipes will to be separated into some control water sections between oil pipe column and production casing, perforated interval on each control water Duan Douyu production casing is corresponding, oil pipe column comprises some oil pipes, Intelligent water-controlled short circuit is alternately connected with oil pipe, Intelligent water-controlled short circuit is relative with the perforated interval on production casing, self-regulation flow control valve is provided with in Intelligent water-controlled short circuit, this flow control valve can according to the viscosity adjustment aperture flowing into oil-water mixture, when the moisture content high viscosity hour of oil-water mixture, the aperture of self-regulation flow control valve diminishes, the oil mixing with water flow quantity entered diminishes, when the moisture content low viscosity of oil-water mixture is large, the aperture of self-regulation flow control valve becomes large, the oil mixing with water flow quantity entered becomes large, utilize the characteristic of self-regulation flow control valve, the some control water sections after to separation can be realized and carry out Discrete control, the oil-water mixture " preferentially " of the reservoir making moisture content low enters oil pipe, the oil-water mixture of the reservoir that restriction moisture content is high enters the flow of oil pipe.Further, self-regulation flow control valve can regulate continuously in real time with the flow of water-cut variation to oil-water mixture of segmentation packing each section of reservoir, reaches the technique effect of oil well segmentation packing, intelligent control water.
The utility model oil well intelligent water control pipe post of having cemented the well both may be used for horizontal well, also may be used for straight well.
Complete oil well intelligent water control pipe post below in conjunction with accompanying drawing to well cementation of the present utility model to be described further.
Accompanying drawing explanation
Fig. 1 is that the utility model has been cemented the well the structural representation of the first embodiment of oil well intelligent water control pipe post;
Fig. 2 is that the utility model has been cemented the well the structural representation of oil well intelligent water control pipe post the second embodiment;
Fig. 3 is that the utility model has been cemented the well the front sectional view of Intelligent water-controlled short circuit in oil well intelligent water control pipe post.
Detailed description of the invention
As shown in Figure 1, the utility model oil well intelligent water control pipe post of having cemented the well comprises packer 3 and Intelligent water-controlled short circuit 11 in oil pipe column 1, hanging packer 2, some pipes.Oil pipe column 1 hangs the lower end being fixed on protective casing 4 by hanging packer 2, oil pipe column 1 is positioned at production casing 5.In some pipes, packer 3 interval is connected on oil pipe column 1, and packer 3 seals with the contact internal walls of production casing 5 in pipe, in pipe, packer 3 is mechanical packer, hydraulic packer or chance oil/water inflatable packer, and in pipe, the quantity of packer 3 determines according to factors such as the length of horizontal well.In pipe, packer 3 will be separated into some control water sections between oil pipe column 1 and production casing 5, and the perforated interval 51 on each control water Duan Douyu production casing 5 is corresponding.Oil pipe column 1 comprises some oil pipes 12, and some Intelligent water-controlled short circuits 11 are alternately connected successively with oil pipe 12, and each Intelligent water-controlled short circuit 11 is between adjacent two external packer of pipe 3, corresponding with the perforated interval 51 on production casing 5.Guide shoe 15 is provided with bottom oil pipe column 1.
As shown in Figure 3, Intelligent water-controlled short circuit 11 comprises base tube 111, self-regulation flow control valve 112 and screen cloth 113, and the two ends of base tube 111 are threaded with oil pipe 12 respectively.The circumferential upper tube wall of base tube 111 offers some valve installing holes, in each valve installing hole, self-regulation flow control valve 112 is installed, it is outside that screen cloth 113 covers self-regulation flow control valve 112, and the two ends of screen cloth 113 are fixedly connected with by retainer ring 115 with between base tube 111.Form filtrate runner 114 between screen cloth 113 and base tube 111, filtrate runner 114 is connected with the inlet of self-regulation flow control valve 112.Wherein, what self-regulation flow control valve 112 adopted is a kind of flow control valve disclosed in pct international patent application WO2008/004875A1, the control water principle of this control valve: according to Bernoulli equation hydrodynamic pressure and the constant theory of local pressure loss sum, by the aperture of video disc in the change control apparatus that flows through the different fluid viscosity of device.When the oil-water mixture that relative viscosity is higher flows through valve body, video disc aperture is larger; When the lower water of relative viscosity or air-flow are through valve body, the pressure drop that video disc causes because of viscosity B coefficent turns aperture down automatically, thus arrives control water, increases the object of oil.
The utility model cemented the well oil well intelligent water control pipe post under enter in horizontal well after, in hanging packer 2 and pipe, packer 3 sets in production casing 5, gives up, trips out running tool, completion.In pipe, packer 3 will be separated into some control water sections between oil pipe column 1 and production casing 5, and the perforated interval 51 on each control water Duan Douyu production casing 5 is corresponding, and each control water Duan Yuyi Intelligent water-controlled short circuit 11 is corresponding.Oil-water mixture flows in production casing 5 by the perforated interval 51 on production casing 5, filtrate runner 114 is entered again by the screen cloth 113 of Intelligent water-controlled short circuit 11 outside, then entered in base tube 111 by self-regulation flow control valve 112 and be plucked out of the ground, self-regulation flow control valve 112 is according to the aperture of the oil mixing with water fluid viscosity adjusting control valve flowed through, when the viscosity of oil-water mixture is larger (moisture content is low), the aperture of control valve becomes large, the oil mixing with water flow quantity entering base tube 111 improves, when the viscosity of oil-water mixture is less (moisture content is high), the aperture of control valve diminishes, the oil mixing with water flow quantity entering base tube 111 reduces.Each Intelligent water-controlled short circuit 11 according to the oil-water mixture moisture content flow automatic regulation relatively controlling water section, thus reaches the object of segmentation packing, intelligent control water.
As shown in Figure 2, the cemented the well difference of oil well intelligent water control pipe post the second embodiment and a upper embodiment of the utility model is only that applied oil well is straight well, and the some control water sections between production casing 5 and oil pipe column 1 are along the directional spreding of straight well.
Above-described embodiment is only be described preferred embodiment of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection domain that the utility model claims determine.

Claims (5)

1. a well cementation completes oil well intelligent water control pipe post, it is characterized in that: comprise oil pipe column (1), hanging packer (2), packer (3) and some Intelligent water-controlled short circuits (11) in some pipes, described oil pipe column (1) hangs the lower end being fixed on protective casing (4) by hanging packer (2), oil pipe column (1) is positioned at production casing (5), described oil pipe column (1) comprises some oil pipes (12), in described some pipes, packer (3) interval is connected on oil pipe column (1), and packer (3) seals with the contact internal walls of production casing (5) in pipe, in adjacent two pipes, packer (3) will be separated into some control water sections between oil pipe column (1) and production casing (5), perforated interval (51) on each control water Duan Douyu production casing (5) is corresponding, described Intelligent water-controlled short circuit (11) is alternately connected successively with oil pipe (12), each Intelligent water-controlled short circuit (11) is positioned between two adjacent pipes packer (3), corresponding with the perforated interval (51) on production casing (5), Intelligent water-controlled short circuit (11) comprises base tube (111), self-regulation flow control valve (112) and screen cloth (113), the two ends of described base tube (111) are connected with oil pipe (12) respectively, the circumferential tube wall of base tube (111) offers some valve installing holes, self-regulation flow control valve (112) is installed in each valve installing hole, it is outside that described screen cloth (113) is fixedly mounted on base tube (111), filtrate runner (114) is formed between screen cloth (113) and base tube (111), described filtrate runner (114) is connected with the inlet of self-regulation flow control valve (112).
2. well cementation according to claim 1 completes oil well intelligent water control pipe post, it is characterized in that: in described pipe packer (3) be mechanical packer, hydraulic packer or meet oil/water inflatable packer.
3. well cementation according to claim 1 completes oil well intelligent water control pipe post, it is characterized in that: it is outside that described screen cloth (113) covers self-regulation flow control valve (112), the two ends of screen cloth (113) are fixedly connected with by retainer ring (115) with between base tube (111).
4. well cementation according to claim 1 completes oil well intelligent water control pipe post, it is characterized in that: described oil pipe column (1) bottom is provided with guide shoe (15).
5. well cementation according to claim 1 completes oil well intelligent water control pipe post, it is characterized in that: described oil well is horizontal well or straight well.
CN201420769201.3U 2014-12-08 2014-12-08 To cement the well oil well intelligent water control pipe post Expired - Fee Related CN204283380U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107869332A (en) * 2016-09-22 2018-04-03 中国石油化工股份有限公司 A kind of oil well monitor control system and method
CN108138557A (en) * 2015-09-15 2018-06-08 思达斯易能源技术(集团)有限公司 A kind of water control pipe column and its automatically flow into control current limiter and inflow control device
CN110965967A (en) * 2019-12-16 2020-04-07 中国石油集团渤海钻探工程有限公司 Downhole fluid automatic control and water blocking integrated layered oil production pipe column and oil production method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108138557A (en) * 2015-09-15 2018-06-08 思达斯易能源技术(集团)有限公司 A kind of water control pipe column and its automatically flow into control current limiter and inflow control device
CN108138557B (en) * 2015-09-15 2020-08-21 中国海洋石油集团有限公司 Water control pipe column and automatic inflow control current limiter and inflow control device thereof
CN107869332A (en) * 2016-09-22 2018-04-03 中国石油化工股份有限公司 A kind of oil well monitor control system and method
CN110965967A (en) * 2019-12-16 2020-04-07 中国石油集团渤海钻探工程有限公司 Downhole fluid automatic control and water blocking integrated layered oil production pipe column and oil production method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: ZHONGTONG (BEIJING) ENERGY TECHNOLOGY CO., LTD.

Free format text: FORMER NAME: ZHONGTONG (BEIJING) ENERGY TECHNOLOGY LTD.

CP01 Change in the name or title of a patent holder

Address after: 100102 Wangjing West Road, Beijing, No. 1, No.

Patentee after: Tong Tong (Beijing) energy technology Limited by Share Ltd

Address before: 100102 Wangjing West Road, Beijing, No. 1, No.

Patentee before: All way (Beijing) Energy Technology Co., Ltd.

C41 Transfer of patent application or patent right or utility model
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 100102 Wangjing West Road, Beijing, No. 1, No.

Patentee after: Public power source oil and gas engineering and technology Limited by Share Ltd

Address before: 100102 Wangjing West Road, Beijing, No. 1, No.

Patentee before: Tong Tong (Beijing) energy technology Limited by Share Ltd

TR01 Transfer of patent right

Effective date of registration: 20170214

Address after: 100080 Haidian Haidian District street, No. 3, building 20, room 1801-A2018-19, level 1,

Patentee after: Beijing Cathay Pacific Technology Co., Ltd.

Address before: 100102 Wangjing West Road, Beijing, No. 1, No.

Patentee before: Public power source oil and gas engineering and technology Limited by Share Ltd

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150422

Termination date: 20171208