CN108798546A - A kind of deep well cementing construction method and combinations thereof part - Google Patents
A kind of deep well cementing construction method and combinations thereof part Download PDFInfo
- Publication number
- CN108798546A CN108798546A CN201810679893.5A CN201810679893A CN108798546A CN 108798546 A CN108798546 A CN 108798546A CN 201810679893 A CN201810679893 A CN 201810679893A CN 108798546 A CN108798546 A CN 108798546A
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- Prior art keywords
- casing
- cementing
- open
- well
- opens
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Classifications
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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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- 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 kind of deep well cementing construction method and combinations thereof parts；Be intended to provide it is a kind of using drilling rod replace upper sleeve, avoid waste tubing and postpone the duration, cementing operation method a combination thereof part of convenient and efficient, technical solution is such：The construction method includes：Design well depth；Constructed and one, two spudded in well operations, installation one open casing, two open casing after, open sleeve upper end reverse connector three and opened three after casing connect with drilling rod, then carry out three and spud in production casing of cementing the well after well operations to completion；When cementing slurry and when all reaching calculation amount for slurries, drilling rod and casing are unscrewed in the rotation of top rod negative direction, propose that top drilling tool, Hou Ning complete well cementing operation；Belong to deep drilling exploration fraclional well cementing technical field of construction.
Description
Technical field
The invention discloses a kind of deep well cementing construction method and combinations thereof parts, belong to deep drilling exploration fraclional well cementing construction skill
Art field.
Background technology
In order to reach Reinforcing Shaft, ensure to continue safety drilling, packing oil, gas and water layer ensure the layering during exploration
Test and tripping in high-quality steel pipe the purpose of rational production of hydrocarbons in entire recovery process, and filled in pit shaft and steel pipe annular space
Fill in the operation of cement.
Casing is different from drilling rod, is the tubing of disposable tripping in, without reinforcement, length does not have strict regulations.To protect
Cementing quality and successfully tripping in casing are demonstrate,proved, the structure design of casing string is done.According under purposes, Horizon Prognosis pressure and casing
The intensity for entering depth design casing, determine casing uses wall thickness, grade of steel and screw thread type.
Cementing is the critical process after casing lower going-into-well, and effect is to play the annular space sealing of casing and the borehole wall
Come, to insulate oil-gas-water layer, casing is made to lead to the channel in well as oil gas.
After setting of casing cementing, well head will be installed during theing cement solidifies.The top of surface pipe will pacify casing head
Shell.The top of each layer casing is all hung in casing head, and casing head is mainly used to the weight of support technology casing and production string
Amount, it is particularly important that this does not return to cementing concrete on ground.Casing head is also used for the annular space between sealing sleeve pipe, prevents pressure mutual
It alters.The transition connection of casing head or preventer, tubing head.There are two side port, Ke Yijin on the casing head that land uses
Row mends squeeze method, monitoring hole condition, the operations such as note equilibrium liquid.
After installing casing head and connecting preventer and blowout prevention pipeline, to do casing head sealing compression resistance inspection and with
The sealing pressure testing of preventer connection visits the pressure check that do casing string in casing after cement plug, after drilling 2~3 meters of casing shoe
(protective casing) will do formation breakdown experiment, and producing well wants the quality inspection of making cement ring, with acoustic detection cement sheath and casing
With the cementing situation of the borehole wall.After whole qualifieds of cementing quality, next operation procedure can be just entered.
Invention content
The first object of the present invention be to provide it is a kind of using drilling rod replace upper sleeve, avoid waste tubing and postpone work
Phase, the cementing operation method of convenient and efficient.
Second purpose of this law is to provide the sub-assembly when cementing operation.
First technical solution provided by the invention is such：
A kind of deep well cementing construction method, includes the following steps successively：
(1) well depth is designed；
(2) constructed and one, two spudded in well operations, installation one open casing, two open casing after, open sleeve upper end with anti-three
Threaded Connector Coupling is opened three after casing connect with drilling rod, then is carried out three and spudded in production casing of cementing the well after well operations to completion；
(3) when cementing slurry and when all reaching calculation amount for slurries, drilling rod and set are unscrewed in the rotation of top rod negative direction
Pipe proposes that top drilling tool, Hou Ning complete well cementing operation.
Further, above-mentioned a kind of deep well cementing construction method, described one opens casing to have consolidated table casing.
Further, above-mentioned a kind of deep well cementing construction method, described two open casing as protective casing.
Further, above-mentioned a kind of deep well cementing construction method, described three open casing as production casing.
Further, above-mentioned a kind of deep well cementing construction method, step 3) are specially when the amount of injection cement mortar reaches
When calculated value, a certain amount of thin pulp is injected, then the pressure release of well cementation pump.
Second technical solution provided by the invention is such：
A kind of deep well cementing is constructed sub-assembly, including one opens casing, and described one, which opens internal surface of sleeve pipe, is glued with two and opens casing, institute
It states two and opens lower end and be additionally provided with three and open casing, described three open sleeve upper end opens set by reverse connector jointed rod, described three
By reverse connector jointed rod, the reverse connector is additionally provided with the first sealing lipid layer with drilling rod junctions, described anti-for pipe upper end
Threaded Connector Coupling and three opens cannula connection equipped with the second sealing lipid layer, and the drilling rod is opened casing and two through one and opened in casing
Chamber.
As present invention further optimization, a kind of above-mentioned deep well cementing construction sub-assembly, the drilling rod, one open set
Pipe, two open casing and three and open casing and be located at same central axes.
As present invention further optimization, on a kind of deep well cementing construct sub-assembly, described one opens internal surface of sleeve pipe
It is close to two completely and opens sleeve outer wall.
As present invention further optimization, a kind of above-mentioned deep well cementing is constructed sub-assembly, and the reverse connector is
Machining flat slightly detains the reverse connector of the shape of the mouth as one speaks, and material material is N80 grades or more steel.
Compared with prior art, technical solution provided by the invention replaces upper sleeve using drilling rod, avoids waste tubing
And duration, convenient and efficient, it can be widely used in the cementing operation method of various drilling environments, directly by cannula tip and drilling tool
It is connected with reverse connector, and two open casing hypomere and do not install production casing hanger, avoid three spudding well of hanger pair and apply
Work brings unnecessary influence.Cost is not only saved in this way, and it is relatively easy to construct.
Description of the drawings
Fig. 1 is assembling unit structure schematic diagram provided by the invention；
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.
The present invention is described in further detail for embodiment in below in conjunction with the accompanying drawings, but does not constitute to the present invention's
Any restrictions.
A kind of deep well cementing construction method, includes the following steps successively：
(1) well depth is designed；
(2) constructed and one, two spudded in well operations, installation one open casing, two open casing after, open sleeve upper end with anti-three
Threaded Connector Coupling is opened three after casing connect with drilling rod, then is carried out three and spudded in production casing of cementing the well after well operations to completion；
(3) when cementing slurry and when all reaching calculation amount for slurries, a certain amount of thin pulp is injected, then well cementation pump is let out
Pressure.Top rod negative direction rotates, and unscrews drilling rod and casing, proposes that top drilling tool, Hou Ning complete well cementing operation.
It is protective casing that described two, which open casing,；It is production casing that described three, which open casing,.
The sub-assembly that above-described embodiment uses, refering to fig. 1, including one opens casing 1, and described one, which opens 1 inner wall of casing, is glued with
Two open casing 2, and described two, which open 2 lower end of casing, is additionally provided with three and opens casing 3.Described two open 3 upper end of casing is connected by reverse connector 4
Drilling rod 5, described three open 3 upper end of casing by 4 jointed rod 5 of reverse connector, and the reverse connector 4 is also set with 5 junction of drilling rod
There are the first sealing lipid layer 6, the reverse connector 4 and three to open 3 junction of casing equipped with the second sealing lipid layer 7, it is ensured that connection effect；
The drilling rod 5 opens the inner cavity that casing 1 and two opens casing 2 through one.
More specifically, the drilling rod 5, one open casing 1, two open casing 2 and three open casing 3 center be located at it is same
Central axes, described one opens 1 inner wall of casing is close to two and opens 2 outer wall of casing completely.
Embodiment 1
JX-01 well drilling tool cementing methods
JX-01 well finishing drilling well depths 1800.00m, an exploitation are usedTricone bit is drilled into well depth 51.00m
Complete, tripping in 339.7mm mono- opens casing 1, and one opens 1 time depth 50.97m of casing, and cementing slurry returns to ground；Two exploitations are usedPDC is drilled into complete in well depth 500.00m, and tripping in 244.5mm bis- opens casing 2, and two open 2 times depth 498.78m of casing,
Cementing slurry returns to ground, and cementing quality is outstanding；Three exploitations are usedPDC is drilled into well depth 1800.00m finishing drillings, prepares
Tripping in 177.8mm*J55 grade of steels three open casing 3, the estimated lower depth 1800.00m of casing, and cementing slurry returns to 600.00m, sealing
Lower part mixing wastewater with air well section completion.
Construction procedure and points for attention：
1) after various casings and casing appliances to well, detailed inspection is carried out in face of casing on ground, casing screw thread is wanted
It carries out cleaning and checks screw thread whether there is or not damaged condition, latus rectum will be carried out to casing, every casing rechain and will number, it is ensured that
Enter well sequence and entanglement does not occur, well cementation attachment will be attached test on ground and casing, see whether screw thread can normally connect safely
It connects.
2) it to avoid casing external and internal pressure uneven in time to set ipe grout, casing is made to occur to squeeze change when setting of casing
Shape；Or damage lower part float collar, float shoe by pressure；The weight of bunch tube can also be increased, effectively avoid trapping caused by buoyancy is excessive
Pipe difficulty is constructed.
3) bunch tube overall length 1320.00m, it is contemplated that lower depth 1800.00m connects special reverse connector using bunch tube top, with
The connection of drilling rod bottom reverse connector, with 89mm drilling rods, delivery cannula string to 1800.00m well depths, bunch tube top depth 480.00m into
Row well cementation.
4) the hole diameter data that well logging obtains are submitted into cementing operation side, formulates rational well cementation plan, well depth 600.00-
1800.00m average caliper 277.78m, it is contemplated that 5 cubic metres of prepad fluid of note, 43 cubic metres of cement injection, for starching 28.53 cubic metres,
Cement mortar is estimated to return high 600.00m.
5) after well cementation is for slurry, kelly bar is connect, bunch tube is delivered to shaft bottom, bunch tube top and drilling rod bottom are opened to three
Portion reverse connector junction carries out lock out operation, is successfully separated bunch tube with after drilling rod, turn on pump cycle removes 480.00m well depths
Above slurry, and drilling rod internal washing is clean, it pulls out of hole, Hou Ning.
If 6) bunch tube and drilling tool cannot be successfully separated, well cementation tap is connect immediately and build the pressure waiting and is coagulated, pre-hardening 12h
After continue separation construction.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
The specific implementation of the present invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to the present invention's
Protection domain.
Claims (9)
1. a kind of deep well cementing construction method, which is characterized in that include the following steps successively：
(1) well depth is designed；
(2) constructed and one, two spudded in well operations, installation one open casing, two open casing after, open sleeve upper end three and connect with anti-silk
Head is opened three after casing connect with drilling rod, then is carried out three and spudded in production casing of cementing the well after well operations to completion；
(3) when cementing slurry and when all reaching calculation amount for slurries, drilling rod and casing are unscrewed in the rotation of top rod negative direction,
It is proposed that top drilling tool, Hou Ning complete well cementing operation.
2. a kind of deep well cementing construction method according to claim 1, which is characterized in that it is to have consolidated that described one, which opens casing,
Table casing.
3. a kind of deep well cementing construction method according to claim 1, which is characterized in that it is technology that described two, which open casing,
Casing.
4. a kind of deep well cementing construction method according to claim 1, which is characterized in that it is production that described three, which open casing,
Casing.
5. a kind of deep well cementing construction method according to claim 1, which is characterized in that step 3) is specially when injection water
When the amount of mud reaches calculated value, a certain amount of thin pulp is injected, then the pressure release of well cementation pump.
The sub-assembly 6. a kind of deep well cementing is constructed, which is characterized in that open casing (1) including one, described one to open casing (1) inner wall tight
It posts two and opens casing (2), described two, which open casing (2) lower end, is additionally provided with three and opens casing (3), and described three, which open casing (3) upper end, passes through
Reverse connector (4) jointed rod (5), the reverse connector (4) are additionally provided with the first sealing lipid layer (6), institute with drilling rod (5) junction
It states reverse connector (4) and opens casing (3) junction equipped with the second sealing lipid layer (7) with three；The drilling rod (5) opens set through one
It manages (1) and two and opens the inner cavity of casing (2).
The sub-assembly 7. a kind of deep well cementing according to claim 6 is constructed, which is characterized in that the drilling rod (5), one open
Casing (1), two open casing (2) and three open casing (3) central axes be located at same central axes.
The sub-assembly 8. a kind of deep well cementing according to claim 6 is constructed, which is characterized in that described one opens casing (1)
Inner wall is close to two and opens casing (2) outer wall completely.
The sub-assembly 9. a kind of deep well cementing according to claim 6 is constructed, which is characterized in that the reverse connector is to add
The reverse connector of the flat thick button shape of the mouth as one speaks of work, material material is N80 grades or more steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810679893.5A CN108798546A (en) | 2018-06-27 | 2018-06-27 | A kind of deep well cementing construction method and combinations thereof part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810679893.5A CN108798546A (en) | 2018-06-27 | 2018-06-27 | A kind of deep well cementing construction method and combinations thereof part |
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| Publication Number | Publication Date |
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| CN108798546A true CN108798546A (en) | 2018-11-13 |
Family
ID=64072023
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| CN101078335A (en) * | 2007-06-28 | 2007-11-28 | 北京万维亿通科技发展有限公司 | Ultra-short radius radial horizontal well drilling, completion tool and technique thereof |
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| CN103233694A (en) * | 2013-04-17 | 2013-08-07 | 中煤科工集团重庆研究院 | Method for descending and suspending production casing for mining area ground coal-bed gas well and casing device |
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| US20160046853A1 (en) * | 2014-08-15 | 2016-02-18 | Halliburton Energy Services, Inc. | Napthol-Based Epoxy Resin Additives For Use In Well Cementing |
| CN207144848U (en) * | 2017-08-31 | 2018-03-27 | 海隆石油钻具（无锡）有限公司 | A kind of deep water landing tool joint |
| CN208347705U (en) * | 2018-06-27 | 2019-01-08 | 广东煤炭地质一五二勘探队 | Sub-assembly is used in a kind of construction of deep well cementing |
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- 2018-06-27 CN CN201810679893.5A patent/CN108798546A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101078335A (en) * | 2007-06-28 | 2007-11-28 | 北京万维亿通科技发展有限公司 | Ultra-short radius radial horizontal well drilling, completion tool and technique thereof |
| CN101451060A (en) * | 2007-12-04 | 2009-06-10 | 中国石油天然气集团公司 | High-strength sealing thread compound for deep well pipe column and preparation method |
| CN103233694A (en) * | 2013-04-17 | 2013-08-07 | 中煤科工集团重庆研究院 | Method for descending and suspending production casing for mining area ground coal-bed gas well and casing device |
| US20160046853A1 (en) * | 2014-08-15 | 2016-02-18 | Halliburton Energy Services, Inc. | Napthol-Based Epoxy Resin Additives For Use In Well Cementing |
| CN104403754A (en) * | 2014-11-28 | 2015-03-11 | 中国石油天然气集团公司 | Thread sealing grease as well as preparation method and application thereof |
| CN104929567A (en) * | 2015-04-30 | 2015-09-23 | 山西蓝焰煤层气集团有限责任公司 | Low-cost construction process for passing through goaf |
| CN207144848U (en) * | 2017-08-31 | 2018-03-27 | 海隆石油钻具（无锡）有限公司 | A kind of deep water landing tool joint |
| CN208347705U (en) * | 2018-06-27 | 2019-01-08 | 广东煤炭地质一五二勘探队 | Sub-assembly is used in a kind of construction of deep well cementing |
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