CN105114028B - It is not take up well head and intersects cementing method - Google Patents
It is not take up well head and intersects cementing method Download PDFInfo
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- CN105114028B CN105114028B CN201510505683.0A CN201510505683A CN105114028B CN 105114028 B CN105114028 B CN 105114028B CN 201510505683 A CN201510505683 A CN 201510505683A CN 105114028 B CN105114028 B CN 105114028B
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Abstract
Well head is not take up the invention discloses one kind and intersects cementing method, is comprised the following steps：S1,20 " surface pipe lower end connection sleeve pipe float shoe, wherein it is provided with side in side wall of the casing float shoe below floating shoe check valve seat and portals；S2, lower 20 " the direct seat bottom of surface pipe, by wiper block, " surface pipe is fixed placed in the middle by 20 at well head；" surface pipe from below rotary table facilitate well cementation to connect union become 20 " hydraulic circulating head position is opened and risen and gets rid of by 20 for S3, rig floor, and for shifting derrick to next well location, bank does not account for well head intersection well cementing operation；S4, artificial situation is returned in observation during well cementation, when well head it was observed that being transferred to replacement operation after cement returns out immediately, completes well cementation." surface pipe well cementing operation, for HTHP pit shaft integrity demands; cement mortar returns to well head; realize full well section sealing, ensure that 20 " sleeve pipe and 30 " pile pipes turn into an entirety, realize wellbore integrity that the present invention connects hydraulic circulating head using bank and completes well cementing operation, is not take up uphole time and completes 20.
Description
Technical field
The invention belongs to the technical field of drilling well, and in particular to a kind of well cementing operation method.
Background technology
At sea in petroleum exploration and development process, from formula batch drilling well 20, " well cementation of surface pipe is solid using the insertion of interior tubing string
Well, shaft mouth operation must be taken because interior tubing string inserts well cementation, and the surface casing cementing activity duration is due to injection cement additional amount and set
Pipe is big with bore hole annulus gap, and consumption cement mortar is very big, and the well cementing operation time is longer, is unfavorable for marine batch of brill and improves timeliness.It is interior
Tubing string insertion well cementation self shortcoming：(1) activity duration is longer, if complicated feelings occur in sleeve pipe and bore hole annulus during tubing string in tripping in
Condition processing means are limited；(2) although well head operation is simple, it will be catastrophic wellhead casing pipe junk once occur；(3) sleeve pipe
Seawater is inside filled, insertion seals and tested envelope operation and greater risk be present.And use it is blind have that sleeve pipe wall built-up is more for well cementation, there is slug
Phenomenon, cementing quality is poor, and displacement efficiency is low, the drawbacks of for sky or staying high cement plug.Therefore, from the formula batch " surface pipe of drilling well 20
Cementing method need to improve.
Above-mentioned discussion content purpose be to reader introduce may be described below and/or advocate it is of the invention each
The various aspects of the related technology of individual aspect, it is believed that the discussion content contributes to as reader with background's information, to be advantageous to more
Understand various aspects of the invention well, it is therefore to be understood that be that these discussions are read with this angle, it is existing without being to recognize that
Technology.
The content of the invention
One kind is provided and is not take up well head intersection cementing method it is an object of the invention to avoid deficiency of the prior art,
It is not take up well head and carries out intersection well cementing operation, improves drillng operation timeliness.
The purpose of the present invention is achieved through the following technical solutions：
One kind is provided and is not take up well head intersection cementing method, is comprised the following steps：
S1, " surface pipe lower end connection sleeve pipe float shoe, wherein side wall of the casing float shoe below floating shoe check valve seat 20
On be provided with side and portal；
S2, lower 20 " the direct seat bottom of surface pipe, by wiper block, " surface pipe is fixed placed in the middle by 20 at well head；
S3, by 20 " surface pipe from below rotary table conveniently connect 20 " sleeve pipe hydraulic circulating head position open and get rid of, move derrick extremely
Next well location, bank do not account for well head and intersect well cementing operation；
S4, artificial situation is returned in observation during well cementation, when well head it was observed that being transferred to replacement operation after cement returns out immediately, completes
Well cementation.
Wherein, in step s 4, operation is replaced to replace using discharge capacity is become.
Wherein, it is described to become discharge capacity replacement according to the change of displacement pressure in displacement process, used when pressure is relatively low
Higher speed, ensure that annular space cement mortar replaces in the state of flat board stream, and protected when pressure is higher using relatively low speed
Card annular space cement mortar replaces in the state of plug flow, and the high and low separation of pressure is highest operation pressure in work progress.
Wherein, in side wall of the described sleeve pipe float shoe below floating shoe check valve seat it is circumferentially arranged have it is multiple equally distributed
Portal side.
Wherein, in step s 2, by four wiper blocks, " surface pipe is fixed placed in the middle by 20 at well head.
Beneficial effects of the present invention：The present invention abandons tubing string cementing method in routine, and connecing hydraulic circulating head using bank completes
Well cementing operation, it is not take up uphole time and completes 20 " surface pipe well cementing operations, for HTHP pit shaft integrity demands, water
Mud returns to well head, realizes full well section sealing, ensures that 20 " sleeve pipe and 30 " pile pipes turn into an entirety, realizes wellbore integrity,
Replaced using discharge capacity is become, reduce sleeve pipe wall built-up, bored surface pipe well cementing operation timeliness beneficial to sea batch and improve.
Brief description of the drawings
Using accompanying drawing, the invention will be further described, but the embodiment in accompanying drawing does not form any limit to the present invention
System, for one of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to the following drawings
Other accompanying drawings.
Fig. 1 is the structural representation of casing float shoe.
Fig. 2 is 20, and " surface pipe fixes top view placed in the middle.
Embodiment
In order that those skilled in the art more fully understands technical scheme, it is below in conjunction with the accompanying drawings and specific real
Apply example the present invention is described in further detail, it is necessary to explanation, in the case where not conflicting, embodiments herein and
Feature in embodiment can be mutually combined.
The well head of the present invention that is not take up intersects cementing method, comprises the following steps：
S1,20, " 4 lower end connection sleeve pipe float shoe 1 of surface pipe, the structure of casing float shoe is as shown in figure 1, casing float shoe 1
Multiple equally distributed sides are provided with side wall of the floating shoe check valve seat below 2 and portal 3, pass through the side wall in casing float shoe 1
On be provided with side and portal 3, the usable side runner to be formed that portals ensures well cementing operation, and casing float shoe plays ball-and-seat and provides stream
The double action in road.
Surface pipe 4 is fixed between two parties at S2, lower 20 " 4 direct bottoms of surface pipe, by wiper block 6 by 20 at well head 5 ",
Specifically, by four wiper blocks 6 by 20 at well head 5, " surface pipe is fixed placed in the middle, and stationary state is as shown in Figure 2.
S3, rig floor by 20 " surface pipe from below rotary table conveniently connect 20 " sleeve pipe hydraulic circulating head position open and get rid of, move well
To next well location, bank does not account for well head and intersects well cementing operation frame.
S4, artificial situation is returned in observation during well cementation, when well head it was observed that being transferred to replacement operation after cement returns out immediately, passes through
The well cementation accurate feature of pump replacement amount, reduce as far as possible in sleeve pipe and stay cement plug length, finally complete well cementation.
Preferably, in step s 4, operation is replaced to replace using discharge capacity is become.The change discharge capacity is replaced according in displacement process
The change of displacement pressure, using higher speed when pressure is relatively low, ensure annular space cement mortar in the state of flat board stream
Replace, and when pressure is higher using relatively low speed, ensure that annular space cement mortar replaces in the state of plug flow, pressure it is high with it is low
Separation be highest operation pressure in work progress.
Many details are elaborated in above description to facilitate a thorough understanding of the present invention, still, the present invention can be with
It is different from other modes described here using other to implement, it is thus impossible to be interpreted as limiting the scope of the invention.
In a word, although the present invention illustrates above-mentioned preferred embodiment, although it should be noted that those skilled in the art
Member can carry out various change and remodeling, unless such change and remodeling deviate from the scope of the present invention, otherwise should all wrap
Include within the scope of the present invention.
Claims (5)
1. one kind, which is not take up well head, intersects cementing method, comprise the following steps：
S1, " surface pipe lower end connection sleeve pipe float shoe, wherein set in side wall of the casing float shoe below floating shoe check valve seat 20
Side is equipped with to portal；
S2, lower 20 " the direct seat bottom of surface pipe, by wiper block, " surface pipe is fixed placed in the middle by 20 at well head；
S3, by 20 " surface pipe from below rotary table conveniently connect 20 " sleeve pipe hydraulic circulating head position open and get rid of, move derrick to next
Well location, bank do not account for well head and intersect well cementing operation；
S4, artificial situation is returned in observation during well cementation, when well head it was observed that being transferred to replacement operation after cement returns out immediately, completes solid
Well.
2. the well head according to claim 1 that is not take up intersects cementing method, it is characterised in that：In step s 4, replace and make
Industry is replaced using discharge capacity is become.
3. the well head according to claim 2 that is not take up intersects cementing method, it is characterised in that：The change discharge capacity replaces basis
The change of displacement pressure in displacement process, using higher speed when pressure is relatively low, ensure annular space cement mortar in flat board
Replaced in the state of stream, and ensure that annular space cement mortar replaces in the state of plug flow using relatively low speed when pressure is higher,
The high and low separation of pressure is highest operation pressure in work progress.
4. the well head that is not take up according to claim 1 or 2 or 3 intersects cementing method, it is characterised in that：Described sleeve pipe float shoe
It is circumferentially arranged in side wall below floating shoe check valve seat to there are multiple equally distributed sides to portal.
5. the well head that is not take up according to claim 1 or 2 or 3 intersects cementing method, it is characterised in that：In step s 2,
By four wiper blocks by 20 at well head, " surface pipe is fixed placed in the middle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510505683.0A CN105114028B (en) | 2015-08-17 | 2015-08-17 | It is not take up well head and intersects cementing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510505683.0A CN105114028B (en) | 2015-08-17 | 2015-08-17 | It is not take up well head and intersects cementing method |
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| CN105114028A CN105114028A (en) | 2015-12-02 |
| CN105114028B true CN105114028B (en) | 2018-01-26 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545247B (en) * | 2015-12-08 | 2018-08-10 | 中国石油天然气股份有限公司 | A kind of oil gas well cementing operation method |
| CN108301790B (en) * | 2018-03-21 | 2024-02-02 | 中海石油(中国)有限公司湛江分公司 | Well head auxiliary sleeve centering slip setting device and application method |
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| US4291767A (en) * | 1980-02-06 | 1981-09-29 | Hall Jr Emmitt D | Method for stabilizing and hanging surface casing |
| CN201206456Y (en) * | 2008-04-23 | 2009-03-11 | 华丽缘 | Cycling head for cementing |
| CN202194587U (en) * | 2011-08-17 | 2012-04-18 | 四川蓉瑞华宝科技有限公司 | Hydraulic drive rotation sleeve guide shoe |
| CN102787810A (en) * | 2011-05-18 | 2012-11-21 | 中国石油化工集团公司 | Method for centering horizontal well cementing casing pipe |
| CN203081394U (en) * | 2012-10-10 | 2013-07-24 | 西安航威石化设备有限公司 | Float collar and float shoe for horizontal well |
| CN103352673A (en) * | 2013-07-30 | 2013-10-16 | 中国海洋石油总公司 | Monocular twin-well surface layer well cementation technology |
| CN203716924U (en) * | 2014-03-04 | 2014-07-16 | 新疆华油技术服务股份有限公司 | Rotating self-guiding floating shoe |
| CN103967412A (en) * | 2013-01-24 | 2014-08-06 | 中国石油化工股份有限公司 | Rotational flow shoe |
| CN104514515A (en) * | 2013-09-30 | 2015-04-15 | 扬州市油田金达实业有限公司 | Automatic grouting float shoe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10487618B2 (en) * | 2013-10-11 | 2019-11-26 | Weatherford Netherlands, B.V. | System and method for sealing a wellbore |
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2015
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| US4291767A (en) * | 1980-02-06 | 1981-09-29 | Hall Jr Emmitt D | Method for stabilizing and hanging surface casing |
| CN201206456Y (en) * | 2008-04-23 | 2009-03-11 | 华丽缘 | Cycling head for cementing |
| CN102787810A (en) * | 2011-05-18 | 2012-11-21 | 中国石油化工集团公司 | Method for centering horizontal well cementing casing pipe |
| CN202194587U (en) * | 2011-08-17 | 2012-04-18 | 四川蓉瑞华宝科技有限公司 | Hydraulic drive rotation sleeve guide shoe |
| CN203081394U (en) * | 2012-10-10 | 2013-07-24 | 西安航威石化设备有限公司 | Float collar and float shoe for horizontal well |
| CN103967412A (en) * | 2013-01-24 | 2014-08-06 | 中国石油化工股份有限公司 | Rotational flow shoe |
| CN103352673A (en) * | 2013-07-30 | 2013-10-16 | 中国海洋石油总公司 | Monocular twin-well surface layer well cementation technology |
| CN104514515A (en) * | 2013-09-30 | 2015-04-15 | 扬州市油田金达实业有限公司 | Automatic grouting float shoe |
| CN203716924U (en) * | 2014-03-04 | 2014-07-16 | 新疆华油技术服务股份有限公司 | Rotating self-guiding floating shoe |
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| 《JZ9-3W沉箱集中快钻密集丛式井表层技术》;姜伟;《钻采工艺》;19981031;第21卷(第5期);第1-3页 * |
| 《渤海油田快速钻井技术及其应用研究》;赵景芳 等;《石油天然气学报（江汉石油学院学报）》;20060831;第28卷(第4期);第312-314页 * |
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| CN105114028A (en) | 2015-12-02 |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Applicant after: China Offshore Oil Group Co., Ltd. Applicant after: CNOOC (China) Limited Zhanjiang Branch Address before: China CNOOC Building No. 25 Beijing 100000 Chaoyang District Chaoyangmen North Street Applicant before: China National Offshore Oil Corporation Applicant before: CNOOC (China) Limited Zhanjiang Branch |
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