CN204716202U - Intubate well cementing valve - Google Patents

Intubate well cementing valve Download PDF

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Publication number
CN204716202U
CN204716202U CN201520376200.7U CN201520376200U CN204716202U CN 204716202 U CN204716202 U CN 204716202U CN 201520376200 U CN201520376200 U CN 201520376200U CN 204716202 U CN204716202 U CN 204716202U
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China
Prior art keywords
intubate
sliding sleeve
ball seat
well cementing
level pressure
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CN201520376200.7U
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Chinese (zh)
Inventor
姚红生
杜长全
李哲东
夏苏江
沈文清
龚明峰
樊开赟
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Sinopec East China Oil and Gas Co Taizhou Oil Production Plant
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Sinopec East China Co Oil Production Plant
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Abstract

The utility model discloses a kind of intubate well cementing valve, comprise intubate and well cementing valve, described well cementing valve forms primarily of well cementing valve body, sliding sleeve and level pressure ball seat parts.Described well cementing valve body is primarily of being threaded successively and be the top connection of hollow structure, center tap and lower contact composition.Described sliding sleeve can be arranged on top connection and between center tap binding site and sleeve base by axial slip, by sliding sleeve shear pin and well cementing valve body affixed.Described level pressure ball seat parts are arranged in the inner chamber of lower contact, be placed in and intubate and the same shaft centre line position of sliding sleeve, primarily of level pressure ball seat and steel ball composition, level pressure ball seat is connected with lower contact by ball seat shear pin, and the cylindrical of level pressure ball seat is embedded with ball seat O-ring seals.The utility model reasonable in design, reliability is high, good airproof performance, and after can not only effectively preventing from cementing the well, cement paste backflow, removes the later stage from and sweep plug flow chart, and significantly shorten construction period, reduces construction cost.

Description

Intubate well cementing valve
Technical field
The utility model relates to a kind of bushing pipe sealing circulation cementing unit applied in oil-water well bushing pipe secondary well shaft fixing technology, is specifically related to one intubate well cementing valve.
Background technology
Oil field, Eastern China generally enters middle and advanced stage exploitation, and particularly some old wells covers damage serious, and is much multistage, multiple spot cover damage, causes very large difficulty to the exploitation in oil field.Bushing pipe secondary well shaft fixing technology is a kind of effective ways, particularly multistage casing damaged well of administering casing damaged well, combines often carry out the comprehensive regulation with the shutoff of oil-water-layer.In prior art, the well cementation of most bushing pipe secondary all adopts hydraulic suspension hanging device complementary sleeves float shoe to realize bushing pipe to give up and deliver and well cementation object, and this device exists the shortcomings such as complex structure, cost is high, complicated operation, reliability are low.
Summary of the invention
The utility model object is development replacement liquid gland pipe hanger, meets the requirement of bushing pipe secondary well shaft fixing technology, provide a kind of " intubate well cementing valve ", this well cementing valvereasonable in design, reliability is high, good airproof performance, and after can not only effectively preventing from cementing the well, cement paste backflow, removes the later stage from and sweep plug flow chart, and significantly shorten construction period, reduces construction cost.
To achieve these goals, the utility model is achieved through the following technical solutions: main technical scheme is, a kind of intubate well cementing valve, comprises intubate and well cementing valve, described well cementing valve primarily of well cementing valve body,sliding sleeve and level pressure ball seat parts composition.
described well cementing valve body is primarily of being threaded successively and be the top connection of hollow structure, center tap and lower contact composition.
describedsliding sleeve can be arranged on by axial slip top connection and center tap binding site withbetween sleeve base, pass throughsliding sleeve shear pin with well cementing valve body is affixed.
describedlevel pressure ball seat parts are arranged on in the inner chamber of lower contact, be placed in intubate andthe same shaft centre line position of sliding sleeve.
described intubate coordinates with sliding sleevearrange, described intubatebottom is set to undergauge ledge structure, to be formed intubateundergauge section, intubate is topped bar and intubate is got out of a predicament or an embarrassing situation.
preferably, at described sliding sleeveupper-end part of driving installed to be structure as a whole with sliding sleeve and with intubateundergauge segment length suitable annularpawl spring, sliding sleeve upper position be respectively equipped with it is corresponding that intubate is topped bar and intubate is got out of a predicament or an embarrassing situationsliding sleeve top bar andsliding sleeve is got out of a predicament or an embarrassing situation, and sliding sleeve is provided with the sliding sleeve leakage hole matching to realize the state that opens or closes with valve body leakage hole, is respectively embedded with twice sliding sleeve O-ring seals at the two ends up and down of valve body leakage hole.
preferably, described inlevel pressure ball seat parts primarily of level pressure ball seat and steel ball composition, level pressure ball seat by ball seat shear pin with lower contact connects,the cylindrical of level pressure ball seat is embedded with ball seat O-ring seals.
preferably, in described intubatebe provided with inner via hole, intubate cylindrical be at least embedded with one intubate O-ring seals, be placed in intubatethe upper end position of undergauge section.
preferably, bylevel pressure ball seat and sleeve base form valve cavity jointly, the upper end inner wall position of lower contact be provided with respectively withthe fluid course that valve body leakage hole and valve cavity communicate.
preferably, well cementing valve body is respectively by top connectionwith lower contactbe threaded with sleeve pipe and sawtooth screen casing, the upper end of intubate is connected with tubing round thread by intubate internal thread.
The utility model compared with prior art tool has the following advantages:
1, the utility model reasonable in design, reliability is high, good airproof performance, and after can not only effectively preventing from cementing the well, cement paste backflow, removes the later stage from and sweep plug flow chart, and significantly shorten construction period, reduces construction cost.
2, because being all embedded with O-ring seals on intubate cylindrical, on the two ends up and down of valve body leakage hole and the cylindrical of level pressure ball seat, guarantee effectively to realize sealing circulation for slurry cementing technology object.
3, because being provided with level pressure ball seat parts, before construction, intubate sealing can be verified, safe and reliable.
4, originally well cementing valve meetsthe instructions for use of all size bushing pipe secondary well shaft fixing technology.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
in figure: 1, intubate, 11,intubate internal thread , 12,intubate O-ring seals , 13, intubate undergauge section, 14, intubate tops bar, 15, intubate gets out of a predicament or an embarrassing situation, 2, well cementing valve body, 21, top connection, 22, center tap, 23, lower contact, 24,valve body leakage hole , 25,fluid course , 26,valve cavity , 27,sawtooth screen casing , 3,sliding sleeve , 31, annularpawl spring , 32,sliding sleeve top bar, 33,sliding sleeve is got out of a predicament or an embarrassing situation , 34,sliding sleeve leakage hole , 35,sliding sleeve O-ring seals , 36,sleeve base , 37,sliding sleeve shear pin , 4,level pressure ball seat , 41,steel ball , 42,ball seat O-ring seals , 43,ball seat shear pin.
Detailed description of the invention
Below by non-limiting example, set forth the utility model further, understand the utility model.
Embodiment
As shown in Figure 1, a kind of intubate well cementing valve, comprises intubate and well cementing valve, described well cementing valve primarily of well cementing valve body,sliding sleeve and level pressure ball seat parts composition.
described well cementing valve body is primarily of being threaded successively and be the top connection of hollow structure, center tap and lower contact composition.
describedsliding sleeve can be arranged on by axial slip the groove that top connection and center tap binding site are formed withbetween sleeve base, pass throughsliding sleeve shear pin with well cementing valve body is affixed.
describedlevel pressure ball seat parts are arranged on in the inner chamber of lower contact, be placed in intubate andthe same shaft centre line position of sliding sleeve.
described intubate coordinates with sliding sleevearrange, described intubatebottom is set to undergauge ledge structure, to be formed intubateundergauge section, intubate is topped bar and intubate is got out of a predicament or an embarrassing situation.
at described sliding sleeveupper-end part of driving installed to be structure as a whole with sliding sleeve and with intubateundergauge segment length suitable annularpawl spring, sliding sleeve upper position be respectively equipped with it is corresponding that intubate is topped bar and intubate is got out of a predicament or an embarrassing situationsliding sleeve top bar andsliding sleeve is got out of a predicament or an embarrassing situation, and sliding sleeve is provided with the sliding sleeve leakage hole matching to realize the state that opens or closes with valve body leakage hole, is respectively embedded with twice sliding sleeve O-ring seals at the two ends up and down of valve body leakage hole.Realize sealing with sliding sleeve outer wall.
describedlevel pressure ball seat parts primarily of level pressure ball seat and steel ball composition, level pressure ball seat by ball seat shear pin with lower contact connects,the cylindrical of level pressure ball seat is embedded with ball seat O-ring seals, is formed with valve cavity and seal.
in described intubatebe provided with inner via hole, intubate cylindrical be embedded with 8 road intubate O-ring seals, realize sealing with sliding sleeve inwall, be placed in intubatethe upper end position of undergauge section.
bylevel pressure ball seat and sleeve base form valve cavity jointly, the upper end inner wall position of lower contact be provided with respectively withthe fluid course that valve body leakage hole and valve cavity communicate.
well cementing valve body is respectively by top connectionwith lower contactbe threaded with sleeve pipe and sawtooth screen casing, the upper end of intubate is connected with tubing round thread by intubate internal thread.
The external diameter of sliding sleeve is 116mm, and intubate inner via hole diameter is 50mm; Returning slotting sealing load is 35Mpa, and level pressure ball seat is opened under 12-14Mpa pressure.
Further illustrate this intubate below the use procedure of well cementing valve:
1) intubate is inserted sliding sleeve, intubate is got out of a predicament or an embarrassing situationact on sliding sleeve get out of a predicament or an embarrassing situation promote sliding sleeve move down until cut off sliding sleeve shear pin, now set on sliding sleeve sliding sleeve leakage hole coincide with valve body leakage hole and is communicated with, open circulation canal thus, just suppressing 12-14Mpa and cutting off ball seat shear pin and can carry out circulation cement slurry cementing;
2) when circulation cement slurry cementing terminates, intubate extracted by upper lifting pipe post, intubate is topped bar and is acted onsliding sleeve is topped bar and is passed through annularpawl spring drive sliding sleeve moves until annularpawl spring is given prominence to position and is entered intubatein undergauge section, now set on sliding sleeve sliding sleeve leakage hole and valve body leakage hole are thrown off, and realize circulation canal and close, and stop cement paste backflow;
3) continue upper lifting pipe post, extract intubate anti-flushing well, wash out superfluous water mud, complete whole well shaft fixing technology.
In sum, the utility model reasonable in design, reliability is high, good airproof performance, and after can not only effectively preventing from cementing the well, cement paste backflow, removes the later stage from and sweep plug flow chart, and significantly shorten construction period, reduces construction cost.

Claims (6)

1. an intubate well cementing valve, comprise intubate (1) and well cementing valve, it is characterized in that, described well cementing valve is primarily of well cementing valve body (2), sliding sleeve (3) and level pressure ball seat parts composition, described well cementing valve body (2) is primarily of being threaded successively and be the top connection (21) of hollow structure, center tap (22) and lower contact (23) composition, described sliding sleeve (3) can be arranged on top connection (21) and between center tap (22) binding site and sleeve base (36) by axial slip, affixed by sliding sleeve shear pin (37) and well cementing valve body (2), described level pressure ball seat parts are arranged in the inner chamber of lower contact (23), be placed in and intubate (1) and the same shaft centre line position of sliding sleeve (3), described intubate (1) and sliding sleeve (3) are equipped with, the bottom of described intubate (1) is set to undergauge ledge structure, to form intubate undergauge section (13), intubate is topped bar (14) and intubate is got out of a predicament or an embarrassing situation (15).
2. a kind of intubate well cementing valve according to claim 1, it is characterized in that, install at the upper-end part of driving of described sliding sleeve (3) and be structure as a whole and the annular pawl spring (31) suitable with intubate undergauge section (13) length with sliding sleeve (3), be respectively equipped with at sliding sleeve (3) upper position and top bar with intubate (14) and intubate (15) corresponding sliding sleeve of getting out of a predicament or an embarrassing situation is topped bar (32) and sliding sleeve gets out of a predicament or an embarrassing situation (33), sliding sleeve (3) is provided with the sliding sleeve leakage hole (34) matching to realize the state that opens or closes with valve body leakage hole (24), twice sliding sleeve O-ring seals (35) is respectively embedded with at the two ends up and down of valve body leakage hole (24).
3. a kind of intubate well cementing valve according to claim 1, it is characterized in that, described level pressure ball seat parts are primarily of level pressure ball seat (4) and steel ball (41) composition, level pressure ball seat (4) is connected with lower contact (23) by ball seat shear pin (43), and the cylindrical of level pressure ball seat (4) is embedded with ball seat O-ring seals (42).
4. a kind of intubate well cementing valve according to claim 1, is characterized in that, in described intubate (1), be provided with inner via hole, intubate (1) cylindrical is at least embedded with one intubate O-ring seals (12), is placed in the upper end position of intubate undergauge section (13).
5. a kind of intubate well cementing valve according to claim 1, it is characterized in that, jointly form valve cavity (26) by level pressure ball seat (4) and sleeve base (36), be provided with the fluid course (25) communicated with valve body leakage hole (24) and valve cavity (26) respectively at the upper end inner wall position of lower contact (23).
6. a kind of intubate well cementing valve according to claim 1, it is characterized in that, well cementing valve body (2) is threaded with sleeve pipe and sawtooth screen casing (27) respectively by top connection (21) and lower contact (23), and the upper end of intubate (1) is connected with tubing round thread by intubate internal thread (11).
CN201520376200.7U 2015-06-03 2015-06-03 Intubate well cementing valve Active CN204716202U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520376200.7U CN204716202U (en) 2015-06-03 2015-06-03 Intubate well cementing valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520376200.7U CN204716202U (en) 2015-06-03 2015-06-03 Intubate well cementing valve

Publications (1)

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CN204716202U true CN204716202U (en) 2015-10-21

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104879089A (en) * 2015-06-03 2015-09-02 中国石油化工股份有限公司华东分公司采油厂 Secondary well cementing technique and secondary well cementing device by liner pipe
CN106129938A (en) * 2016-07-13 2016-11-16 国网江苏省电力公司盐城供电公司 Electric line attachment means
CN112664162A (en) * 2019-10-16 2021-04-16 中国石油化工股份有限公司 Intubation type well cementation valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104879089A (en) * 2015-06-03 2015-09-02 中国石油化工股份有限公司华东分公司采油厂 Secondary well cementing technique and secondary well cementing device by liner pipe
CN106129938A (en) * 2016-07-13 2016-11-16 国网江苏省电力公司盐城供电公司 Electric line attachment means
CN112664162A (en) * 2019-10-16 2021-04-16 中国石油化工股份有限公司 Intubation type well cementation valve

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20181128

Address after: 225300 Wuliqiao Trial Production Brigade Complex Building, Taizhou Development Zone, Jiangsu Province

Patentee after: Taizhou Youheng Oil and Gas Engineering Service Co., Ltd.

Address before: 225300 South Passage 99, Hailing District, Taizhou City, Jiangsu Province

Patentee before: SINOPEC East China Branch Oil Production Plant

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20210901

Address after: 225300 South Passage 99, Hailing District, Taizhou City, Jiangsu Province

Patentee after: TAIZHOU OIL PRODUCTION PLANT, CHINA PETROLEUM & CHEMICAL CORPORATION EAST CHINA OIL & GAS Co.

Address before: 225300 Wuliqiao Trial Production Brigade Complex Building, Taizhou Development Zone, Jiangsu Province

Patentee before: Taizhou Youheng Oil and Gas Engineering Service Co.,Ltd.