CN108979586A - A kind of deep well surface casing cementing cement slurry returns high method - Google Patents
A kind of deep well surface casing cementing cement slurry returns high method Download PDFInfo
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- CN108979586A CN108979586A CN201810871134.9A CN201810871134A CN108979586A CN 108979586 A CN108979586 A CN 108979586A CN 201810871134 A CN201810871134 A CN 201810871134A CN 108979586 A CN108979586 A CN 108979586A
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- pumped
- wellbore
- enlargement ratio
- cement
- hole enlargement
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- 239000004568 cement Substances 0.000 title claims abstract description 44
- 239000002002 slurry Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 40
- 238000005553 drilling Methods 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000002159 abnormal effect Effects 0.000 claims abstract description 10
- 238000010992 reflux Methods 0.000 claims abstract description 10
- 239000013535 sea water Substances 0.000 claims abstract description 10
- 241001317177 Glossostigma diandrum Species 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 claims abstract description 3
- 239000007924 injection Substances 0.000 claims abstract description 3
- 239000007921 spray Substances 0.000 claims description 6
- 239000002344 surface layer Substances 0.000 abstract description 6
- 239000003208 petroleum Substances 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000012954 risk control Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of deep well surface casing cementing cement slurries to return high method, method the following steps are included: (1) injection 600-1200mm wellbore after tripping in corresponding size conduit string and lock well head head, be allowed to be seated on mud mat；(2) rotary drilling 480-720mm wellbore, and the bunch tube of tripping in 420-380mm；(3) pressure control valve door, water flowing pressure testing, and it is pumped into the display liquid of 0.02-0.04 times of 508mm casing annulus volume；(4) according to field condition, it is successively pumped into insulating liquid and cement head is starched；(5) artificial situation is returned in ROV observation, observes that display liquid returns out, the hole enlargement ratio of inverse step (2) 480-720mm wellbore；(6) according to hole enlargement ratio, it is pumped into cement tail slurry, the amount of being pumped into is equivalent to the volume * (1+ hole enlargement ratio) of insulating liquid；(7) seawater is replaced, pressure release checks reflux, it is such as normal, it is transferred to lower step operation, such as abnormal, building the pressure, it is solidifying to wait.The present invention can make cement slurry be covered with entire surface layer annular space, be conducive to the cementing quality for improving surface pipe, improve field work safe, can be widely applied in petroleum deepwater drilling field.
Description
Technical field
The invention belongs to the resources drilling engineering such as petroleum gas field, especially a kind of deep well surface casing cementing cement slurry
Return high method.
Background technique
Deep-sea drilling, production technique refer mainly to positioning, installation, the control of 300 meters of depth of waters or less sea area underwater well head facility
Technology, sea area underwater structure stability Design, construction, control technology below 300 meters of depth of waters etc. and deepwater drilling, exploitation
Technical security analysis and risk control；Drilling well, completion technique refer mainly to offshore oil and gas field under balance pressure drilling, completion technique；It surveys
Well technology refers to NMR Logging Technology.
When ocean deepwater drilling operation, due to the influence of the factors such as ocean current, stormy waves and operation, cause drill string in drilling,
It is easy to appear and waves, therefore the wellbore caliper expansion drilled out is serious, it, may if returning height using traditional estimation algorithm estimation cement
Cause the cement amount of surface pipe annular space inadequate, cause surface casing cementing of poor quality, influence well head stability, it is also possible to cause to be pumped into
Cement slurry it is too many, reduce operation timeliness and waste well cementing material, therefore, herein it is proposed that a kind of deep well surface casing cementing
Cement slurry returns high method.
Summary of the invention
The height that returns of cement slurry has very big uncertainty when the present invention is directed to deep well surface casing cementing, may cause surface layer
The problem of cementing quality difference and a kind of method proposed, compared with previous method, this method can determine hole enlargement ratio, can
So that cement slurry is covered with entire surface layer annular space, be conducive to the cementing quality for improving surface pipe, while avoiding the wave of well cementing material
The deficiency taken provides a kind of deep well surface casing cementing cement slurry and returns high method.
The present invention is to solve above-mentioned technical deficiency, using modified technical solution, a kind of deep well surface casing cementing cement slurry
High method is returned, the described method comprises the following steps:
(1) spray 600-1200mm wellbore after tripping in corresponding size conduit string and lock well head head, be allowed to be seated on mud mat；
(2) rotary drilling 480-720mm wellbore, and the bunch tube of tripping in 420-380mm；
(3) pressure control valve door, water flowing pressure testing, and it is pumped into the display liquid of 0.02-0.04 times of 508mm casing annulus volume；
(4) according to field condition, it is successively pumped into insulating liquid and cement head is starched；
(5) artificial situation is returned in ROV observation, observes that display liquid returns out, the caliper expansion of inverse step (2) 480-720mm wellbore
Rate；
(6) according to hole enlargement ratio, it is pumped into cement tail slurry, the amount of being pumped into is equivalent to the volume * (1+ hole enlargement ratio) of insulating liquid；
(7) seawater is replaced, pressure release checks reflux, it is such as normal, it is transferred to lower step operation, such as abnormal, building the pressure, it is solidifying to wait.
It further include that specific step is as follows as present invention further optimization mode, under (1) is sprayed after 914.4 mm wellbores
Enter the conduit string of corresponding size and lock well head head, is allowed to be seated on mud mat；
(2) rotary drilling 660.4mm wellbore, and the bunch tube of tripping in 508mm；
(3) pressure control valve door, water flowing pressure testing, and it is pumped into the display liquid of 0.02-0.04 times of 508mm casing annulus volume；
(4) according to field condition, it is successively pumped into insulating liquid and cement head is starched；
(5) artificial situation is returned in ROV observation, observes that display liquid returns out, the hole enlargement ratio of inverse 660.4mm wellbore；
(6) according to hole enlargement ratio, it is pumped into cement tail slurry, the amount of being pumped into is equivalent to the volume * (1+ hole enlargement ratio) of insulating liquid；
(7) seawater is replaced, pressure release checks reflux, it is such as normal, it is transferred to lower step operation, such as abnormal, building the pressure, it is solidifying to wait.
It further include that specific step is as follows as present invention further optimization mode, (1) sprays tripping in after 1200mm wellbore
The conduit string of corresponding size simultaneously locks well head head, is allowed to be seated on mud mat；
(2) rotary drilling 720mm wellbore, and the bunch tube of tripping in 380mm；
(3) pressure control valve door, water flowing pressure testing, and it is pumped into the display liquid of 0.02-0.04 times of 508mm casing annulus volume；
(4) according to field condition, it is successively pumped into insulating liquid and cement head is starched；
(5) artificial situation is returned in ROV observation, observes that display liquid returns out, the hole enlargement ratio of inverse step 720mm wellbore；
(6) according to hole enlargement ratio, it is pumped into cement tail slurry, the amount of being pumped into is equivalent to the volume * (1+ hole enlargement ratio) of insulating liquid；
(7) seawater is replaced, pressure release checks reflux, it is such as normal, it is transferred to lower step operation, such as abnormal, building the pressure, it is solidifying to wait.
Compared with prior art, this method is conducive to ensure that deep well well head is stablized, and improves field work safe；Advantage effect
Fruit is:
One, the present invention can accurate estimation hole enlargement ratio, avoid the cement slurry amount of being pumped into very few, avoid the occurrence of cementing quality
The problem of difference；
Two, the present invention can make cement slurry be covered with entire surface layer annular space, be conducive to the cementing quality for improving surface pipe, improve existing
Field operation safety；
Three, the method for the present invention is simple, easy to operate, can be widely applied in petroleum deepwater drilling field.
Specific embodiment
Below in conjunction in the embodiment of the present invention, technical solution in the embodiment of the present invention is clearly and completely retouched
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution: a kind of deep well surface casing cementing cement slurry returns high method, the method packet
Include following steps:
(1) spray 600-1200mm wellbore after tripping in corresponding size conduit string and lock well head head, be allowed to be seated on mud mat；
(2) rotary drilling 480-720mm wellbore, and the bunch tube of tripping in 420-380mm；
(3) pressure control valve door, water flowing pressure testing, and it is pumped into the display liquid of 0.02-0.04 times of 508mm casing annulus volume；
(4) according to field condition, it is successively pumped into insulating liquid and cement head is starched；
(5) artificial situation is returned in ROV observation, observes that display liquid returns out, the caliper expansion of inverse step (2) 480-720mm wellbore
Rate；
(6) according to hole enlargement ratio, it is pumped into cement tail slurry, the amount of being pumped into is equivalent to the volume * (1+ hole enlargement ratio) of insulating liquid；
(7) seawater is replaced, pressure release checks reflux, it is such as normal, it is transferred to lower step operation, such as abnormal, building the pressure, it is solidifying to wait.
Further include that specific step is as follows, (1) spray 914.4 mm wellbores after tripping in corresponding size conduit string and lock well
It is oral, it is allowed to be seated on mud mat；
(2) rotary drilling 660.4mm wellbore, and the bunch tube of tripping in 508mm；
(3) pressure control valve door, water flowing pressure testing, and it is pumped into the display liquid of 0.02-0.04 times of 508mm casing annulus volume；
(4) according to field condition, it is successively pumped into insulating liquid and cement head is starched；
(5) artificial situation is returned in ROV observation, observes that display liquid returns out, the hole enlargement ratio of inverse 660.4mm wellbore；
(6) according to hole enlargement ratio, it is pumped into cement tail slurry, the amount of being pumped into is equivalent to the volume * (1+ hole enlargement ratio) of insulating liquid；
(7) seawater is replaced, pressure release checks reflux, it is such as normal, it is transferred to lower step operation, such as abnormal, building the pressure, it is solidifying to wait.
Further include that specific step is as follows, (1) injection 1200mm wellbore after tripping in corresponding size conduit string and lock well head
Head is allowed to be seated on mud mat；
(2) rotary drilling 720mm wellbore, and the bunch tube of tripping in 380mm；
(3) pressure control valve door, water flowing pressure testing, and it is pumped into the display liquid of 0.02-0.04 times of 508mm casing annulus volume；
(4) according to field condition, it is successively pumped into insulating liquid and cement head is starched；
(5) artificial situation is returned in ROV observation, observes that display liquid returns out, the hole enlargement ratio of inverse step 720mm wellbore；
(6) according to hole enlargement ratio, it is pumped into cement tail slurry, the amount of being pumped into is equivalent to the volume * (1+ hole enlargement ratio) of insulating liquid；
(7) seawater is replaced, pressure release checks reflux, it is such as normal, it is transferred to lower step operation, such as abnormal, building the pressure, it is solidifying to wait.
The parameter table of measuring method of the present invention is as follows: table 1
| Creep into the depth of water | Wellbore deviation size | Hole diameter deviation size | Supplement cement slurry | Well head pressure |
| 1000m | 12.68mm | 8.65mm | 12.88cm3 | 74865N |
The parameter table of traditional measuring method is as follows: table 2
| Creep into the depth of water | Wellbore deviation size | Hole diameter deviation size | Supplement cement slurry | Well head pressure |
| 1000m | 15.74mm | 9.73mm | 18.76cm3 | 84566N |
It to sum up states, the present invention will become apparent from compared with previous method by Tables 1 and 2, this method can determine hole diameter
Amplification degree can make cement slurry be covered with entire surface layer annular space, be conducive to the cementing quality for improving surface pipe, while avoiding cementing the well
The deficiency of the waste of material, the present invention can accurate estimation hole enlargement ratio, avoid the cement slurry amount of being pumped into very few, avoid out
The problem of existing cementing quality difference；The present invention can make cement slurry be covered with entire surface layer annular space, be conducive to improve consolidating for surface pipe
Well quality improves field work safe；The method of the present invention is simple, easy to operate, can be widely applied in petroleum deepwater drilling field.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention, for this field skill
For art personnel, it is clear that invention is not limited to the details of the above exemplary embodiments, and without departing substantially from spirit of the invention or
In the case where essential characteristic, the present invention can be realized in other specific forms.Therefore, in all respects, should all incite somebody to action
Embodiment regards exemplary as, and is non-limiting, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that including all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention
It is interior.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (3)
1. a kind of deep well surface casing cementing cement slurry returns high method, which is characterized in that method the following steps are included:
(1) spray 600-1200mm wellbore after tripping in corresponding size conduit string and lock well head head, be allowed to be seated on mud mat；
(2) rotary drilling 480-720mm wellbore, and the bunch tube of tripping in 420-380mm；
(3) pressure control valve door, water flowing pressure testing, and it is pumped into the display liquid of 0.02-0.04 times of 508mm casing annulus volume；
(4) according to field condition, it is successively pumped into insulating liquid and cement head is starched；
(5) artificial situation is returned in ROV observation, observes that display liquid returns out, the caliper expansion of inverse step (2) 480-720mm wellbore
Rate；
(6) according to hole enlargement ratio, it is pumped into cement tail slurry, the amount of being pumped into is equivalent to the volume * (1+ hole enlargement ratio) of insulating liquid；
(7) seawater is replaced, pressure release checks reflux, it is such as normal, it is transferred to lower step operation, such as abnormal, building the pressure, it is solidifying to wait.
2. a kind of deep well surface casing cementing cement slurry according to claim 1 returns high method, which is characterized in that further include
Specific step is as follows, (1) spray 914.4 mm wellbores after tripping in corresponding size conduit string and lock well head head, be allowed to be seated at anti-
On heavy plate；
(2) rotary drilling 660.4mm wellbore, and the bunch tube of tripping in 508mm；
(3) pressure control valve door, water flowing pressure testing, and it is pumped into the display liquid of 0.02-0.04 times of 508mm casing annulus volume；
(4) according to field condition, it is successively pumped into insulating liquid and cement head is starched；
(5) artificial situation is returned in ROV observation, observes that display liquid returns out, the hole enlargement ratio of inverse 660.4mm wellbore；
(6) according to hole enlargement ratio, it is pumped into cement tail slurry, the amount of being pumped into is equivalent to the volume * (1+ hole enlargement ratio) of insulating liquid；
(7) seawater is replaced, pressure release checks reflux, it is such as normal, it is transferred to lower step operation, such as abnormal, building the pressure, it is solidifying to wait.
3. a kind of deep well surface casing cementing cement slurry according to claim 1 returns high method, which is characterized in that further include
Specific step is as follows, (1) injection 1200mm wellbore after tripping in corresponding size conduit string and lock well head head, be allowed to be seated at anti-settling
On plate；
(2) rotary drilling 720mm wellbore, and the bunch tube of tripping in 380mm；
(3) pressure control valve door, water flowing pressure testing, and it is pumped into the display liquid of 0.02-0.04 times of 508mm casing annulus volume；
(4) according to field condition, it is successively pumped into insulating liquid and cement head is starched；
(5) artificial situation is returned in ROV observation, observes that display liquid returns out, the hole enlargement ratio of inverse step 720mm wellbore；
(6) according to hole enlargement ratio, it is pumped into cement tail slurry, the amount of being pumped into is equivalent to the volume * (1+ hole enlargement ratio) of insulating liquid；
(7) seawater is replaced, pressure release checks reflux, it is such as normal, it is transferred to lower step operation, such as abnormal, building the pressure, it is solidifying to wait.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810871134.9A CN108979586B (en) | 2018-08-02 | 2018-08-02 | Method for returning height of cement slurry for surface layer well cementation of deep well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810871134.9A CN108979586B (en) | 2018-08-02 | 2018-08-02 | Method for returning height of cement slurry for surface layer well cementation of deep well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108979586A true CN108979586A (en) | 2018-12-11 |
| CN108979586B CN108979586B (en) | 2020-12-25 |
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|---|---|---|---|
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6457524B1 (en) * | 2000-09-15 | 2002-10-01 | Halliburton Energy Services, Inc. | Well cementing compositions and methods |
| CN101417868A (en) * | 2008-11-18 | 2009-04-29 | 中国石油集团川庆钻探工程有限公司 | Physical foam well cementing cement |
| CN103224772A (en) * | 2013-04-08 | 2013-07-31 | 中国石油天然气股份有限公司 | Well cementation cement slurry, preparation method and application thereof |
| CN104632125A (en) * | 2014-12-30 | 2015-05-20 | 中国石油天然气集团公司 | Method for guiding well cementing operation based on caliper logging data |
| CN108086943A (en) * | 2017-12-11 | 2018-05-29 | 中国海洋石油集团有限公司 | Three open time deepwater drilling annular pressure management method |
-
2018
- 2018-08-02 CN CN201810871134.9A patent/CN108979586B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6457524B1 (en) * | 2000-09-15 | 2002-10-01 | Halliburton Energy Services, Inc. | Well cementing compositions and methods |
| CN101417868A (en) * | 2008-11-18 | 2009-04-29 | 中国石油集团川庆钻探工程有限公司 | Physical foam well cementing cement |
| CN103224772A (en) * | 2013-04-08 | 2013-07-31 | 中国石油天然气股份有限公司 | Well cementation cement slurry, preparation method and application thereof |
| CN104632125A (en) * | 2014-12-30 | 2015-05-20 | 中国石油天然气集团公司 | Method for guiding well cementing operation based on caliper logging data |
| CN108086943A (en) * | 2017-12-11 | 2018-05-29 | 中国海洋石油集团有限公司 | Three open time deepwater drilling annular pressure management method |
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| Publication number | Publication date |
|---|---|
| CN108979586B (en) | 2020-12-25 |
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