CN107503710B - Method for assembling vertical column of well cementation cementing head - Google Patents
Method for assembling vertical column of well cementation cementing head Download PDFInfo
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- CN107503710B CN107503710B CN201710943629.3A CN201710943629A CN107503710B CN 107503710 B CN107503710 B CN 107503710B CN 201710943629 A CN201710943629 A CN 201710943629A CN 107503710 B CN107503710 B CN 107503710B
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- cement head
- head
- combination
- deck
- well cementation
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
Abstract
The invention discloses a method for assembling a well cementation cement head stand column, which comprises the following steps: firstly, off-line pre-connecting a cement head and a short drill rod at a deck to form a cement head A combination; secondly, a drill rod rubber plug is installed on the deck in an off-line mode by a pulley block method; then, hanging 3 drill rods and a cement head on a logging deck from the deck, moving the two drill rods to a drilling platform by a top drive matched with a catwalk machine, connecting the two drill rods at a wellhead, fastening to form a combination B, and seating slips; the top drive is matched with a catwalk machine to move the cementing head A combination from the logging deck to a drill floor, and the cementing head A combination is connected and fastened with the wellhead B combination to form a complete cementing head stand column; connecting a well cementation pipeline and a cement head, binding the well cementation pipeline at a proper position of a cement head upright post, and supporting a cement head bearing; and finally, standing the well-bound cement head upright column on a drilling platform to complete the preparation work of well cementation. By the method, the wellhead occupation time can be reduced by 60 minutes, the hoisting operation times can be reduced by 2 times, and the method has a good application effect.
Description
Technical Field
The invention relates to the field of offshore oil drilling and completion, in particular to a method for assembling a cementing head stand column.
Background
Deep water sea areas such as gulf of mexico, west africa and south sea contain a large amount of rich oil and gas resources, and deep water drilling operation is a pilot project for developing underground oil and gas reservoirs. When the drill bit reaches the drilling depth of a certain drill time and before the drill bit drills in the next drill time, a casing needs to be put in for well cementation operation, and the assembling process of the vertical column of the well cementation cement head is indispensable. In the marine oil and gas drilling engineering, the column of the cementing head is generally as follows from top to bottom: the short drill rod, the cement head body and the two drill rods. In the well cementation process, the upper short drill rod is connected with the top drive, and the cementing head body is used for communicating the top drive, the underground well and the well cementation pipeline. Well cementation cement slurry enters the inner pipe column and the casing through a well cementation pipeline, and displacement fluid flows through the top drive and the inner pipe column to displace the cement slurry into the annulus, so that well cementation operation is finally completed.
Because the daily cost of the offshore oil and gas drilling operation, particularly the deep sea oil and gas drilling operation, can reach dozens of ten thousand yuan per hour, the assembly time of the existing well cementation cement head upright post is about 2 hours generally, and the well cementation cement head upright post has a certain compression space. During the cement head assembling period, three times of hoisting operation are required, the depth of the sea area where the deepwater drilling platform is located is over 1000m, the sea condition is severe, and the conditions of wind wave and current are complex. If in the hoisting operation process, the drilling platform generates complex heave, longitudinal and transverse rolling, and the hoisted goods and ground commanders face greater health and safety risks.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the well cementation cement head stand column assembling method which is simple to operate, can reduce the wellhead occupation time and the hoisting operation times in the installation process and can quickly finish the installation of the well cementation cement head stand column.
In order to achieve the purpose, the invention adopts the technical scheme that: a method for assembling a vertical column of a well cementation cement head is characterized by comprising the following steps: the method comprises the following steps: s1, off-line pre-connecting a cement head and a short drill rod at a deck to form a cement head A combination, wherein the selected short drill rod needs to meet the length matching requirement; s2, mounting a drill rod rubber plug off line at the deck by using a pulley block method; s3, hanging 3 drill rods and the cement head on a logging deck from the deck, moving the two drill rods to a drilling platform by a top drive matched with a catwalk machine, connecting the two drill rods at a wellhead, fastening to form a combination B, and seating a slip to wait for the next step of combination connection with the cement head A; s4, the top drive is matched with a catwalk machine to move the cementing head A combination from the logging deck to the drill floor, and the cementing head A combination is connected and fastened with the wellhead B combination to form a complete cementing head upright post; s5, connecting the well cementation pipeline and the cement head, binding the well cementation pipeline at the proper position of the cement head upright post, and supporting the cement head bearing; and S6, standing the well-bound cement head upright column on a drill floor to finish the preparation work of well cementation.
The invention has the beneficial effects that: the invention can reduce the well mouth occupation time and the hoisting operation times in the installation process, quickly finish the installation of the well cementation cement head upright post and reduce the production operation cost. The method can be suitable for drilling occasions with the characteristic of high daily cost such as an ocean drilling platform and the like, is also suitable for occasions with higher hoisting operation risk, and has good application effect.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic view of the installation of a drill pipe rubber plug by a pulley block method in the present invention.
Detailed Description
The invention relates to a method for assembling a well cementation cement head upright post, which comprises the following steps:
s1, off-line pre-connecting a cement head and a short drill rod at a deck to form a cement head A combination, wherein the selected short drill rod needs to meet the length matching requirement; this step does not require wellhead time.
S2, mounting a drill rod rubber plug off line at the deck by using a pulley block method; as shown in fig. 1. The pulley block installation method is labor-saving and quick, only 1 person is needed, and the time of a wellhead is not occupied.
And S3, hanging 3 drill rods and the cement head on the logging deck from the deck, moving the two drill rods to a drilling platform by a top drive matched with a catwalk machine, connecting the two drill rods at a wellhead, fastening to form a combination B, and seating a slip to wait for the next step of combination connection with the cement head A. In actual operation, the time of the wellhead occupied by the step is 20 minutes.
And S4, the top drive is matched with a catwalk machine to move the cementing head A combination from the logging deck to the drill floor, and the cementing head A combination is connected and fastened with the wellhead B combination to form a complete cementing head upright post. In actual operation, the time of the step at the well head is 10 minutes.
And S5, connecting the well cementation pipeline and the cement head, binding the well cementation pipeline at the proper position of the cement head upright post, and supporting the cement head bearing. In actual operation, the time of the wellhead occupied by the step is 15 minutes.
And S6, standing the well-bound cement head upright column on a drill floor to finish the preparation work of well cementation. In actual operation, the time of the wellhead occupied by the step is 5 minutes.
The method of the invention is adopted to install the vertical column of the well cementation cementing head, and the total time of occupying the well mouth is 50 minutes; while the traditional method requires about 2 hours; by adopting the installation method, the efficiency is obviously improved.
The above description is only for the purpose of illustrating the technical solutions of the present invention, and those skilled in the art can make simple modifications or equivalent substitutions on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (1)
1. A method for assembling a vertical column of a well cementation cement head is characterized by comprising the following steps: the method comprises the following steps:
s1, off-line pre-connecting a cement head and a short drill rod at a deck to form a cement head A combination, wherein the selected short drill rod needs to meet the length matching requirement;
s2, mounting a drill rod rubber plug off line at the deck by using a pulley block method;
s3, hanging 3 drill rods and the cement head on a logging deck from the deck, moving the two drill rods to a drilling platform by a top drive matched with a catwalk machine, connecting the two drill rods at a wellhead, fastening to form a combination B, and seating a slip to wait for the next step of combination connection with the cement head A;
s4, the top drive is matched with a catwalk machine to move the cementing head A combination from the logging deck to the drill floor, and the cementing head A combination is connected and fastened with the wellhead B combination to form a complete cementing head upright post;
s5, connecting the well cementation pipeline and the cement head, binding the well cementation pipeline at the proper position of the cement head upright post, and supporting the cement head bearing;
and S6, standing the well-bound cement head upright column on a drill floor to finish the preparation work of well cementation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710943629.3A CN107503710B (en) | 2017-10-11 | 2017-10-11 | Method for assembling vertical column of well cementation cementing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710943629.3A CN107503710B (en) | 2017-10-11 | 2017-10-11 | Method for assembling vertical column of well cementation cementing head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107503710A CN107503710A (en) | 2017-12-22 |
| CN107503710B true CN107503710B (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710943629.3A Active CN107503710B (en) | 2017-10-11 | 2017-10-11 | Method for assembling vertical column of well cementation cementing head |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111677471B (en) * | 2020-06-12 | 2022-07-19 | 广州海洋地质调查局 | Double-drill-rod rope coring method, system and controller thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2588047Y (en) * | 2002-11-14 | 2003-11-26 | 王继兰 | Dismountable cementing head |
| CN202914026U (en) * | 2012-11-22 | 2013-05-01 | 中国石油集团渤海钻探工程有限公司 | Well cementation cement head |
| CN204186347U (en) * | 2014-10-15 | 2015-03-04 | 中国石油集团西部钻探工程有限公司 | Convenient-opening formula instruction cementing head |
| CN204663474U (en) * | 2015-05-19 | 2015-09-23 | 扬州市驰城石油机械有限公司 | Well drilling and cementing cementing head |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8302698B2 (en) * | 2009-05-07 | 2012-11-06 | Schlumberger Technology Corporation | Activation-device launcher for a cementing head |
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2017
- 2017-10-11 CN CN201710943629.3A patent/CN107503710B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2588047Y (en) * | 2002-11-14 | 2003-11-26 | 王继兰 | Dismountable cementing head |
| CN202914026U (en) * | 2012-11-22 | 2013-05-01 | 中国石油集团渤海钻探工程有限公司 | Well cementation cement head |
| CN204186347U (en) * | 2014-10-15 | 2015-03-04 | 中国石油集团西部钻探工程有限公司 | Convenient-opening formula instruction cementing head |
| CN204663474U (en) * | 2015-05-19 | 2015-09-23 | 扬州市驰城石油机械有限公司 | Well drilling and cementing cementing head |
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| CN107503710A (en) | 2017-12-22 |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Applicant after: CHINA NATIONAL OFFSHORE OIL Corp. Applicant after: ZHANJIANG BRANCH OF CHINA NATIONAL OFFSHORE OIL Corp. Address before: Chinese CNOOC Building No. 25 Beijing 100010 Dongcheng District Chaoyangmen North Street Applicant before: CHINA NATIONAL OFFSHORE OIL Corp. Applicant before: ZHANJIANG BRANCH OF CHINA NATIONAL OFFSHORE OIL Corp. |
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