CN101454535A - Integrated pump assembly for well completion - Google Patents
Integrated pump assembly for well completion Download PDFInfo
- Publication number
- CN101454535A CN101454535A CNA2007800198951A CN200780019895A CN101454535A CN 101454535 A CN101454535 A CN 101454535A CN A2007800198951 A CNA2007800198951 A CN A2007800198951A CN 200780019895 A CN200780019895 A CN 200780019895A CN 101454535 A CN101454535 A CN 101454535A
- Authority
- CN
- China
- Prior art keywords
- pump
- cement
- mud
- pit shaft
- prime mover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004568 cement Substances 0.000 claims abstract description 129
- 239000002002 slurry Substances 0.000 claims abstract description 15
- 238000002955 isolation Methods 0.000 claims abstract description 6
- 238000005553 drilling Methods 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 2
- 238000007654 immersion Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000005086 pumping Methods 0.000 description 47
- 230000008569 process Effects 0.000 description 13
- 239000012530 fluid Substances 0.000 description 9
- 230000008901 benefit Effects 0.000 description 6
- 239000004215 Carbon black (E152) Substances 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 150000002430 hydrocarbons Chemical class 0.000 description 5
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012384 transportation and delivery Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
An integrated pump assembly for both delivering mud and cement slurry to a borehole during a well completion operation. The pump assembly includes separate mud and cement pumps for maintaining isolation between mud and cement slurry during different stages of the operation. However, in order to obviate the need for a dedicated cement pump prime mover, the cement pump may be driven by the mud pump itself or a prime mover coupled to the mud pump. In the case of coupling the cement pump to the mud pump a hydraulic line may be employed such that hydraulically compatible mud and cement pumps may be more remotely positioned relative to one another if so required based on equipment blueprints for a given well completion facility to be located at a production site.
Description
Technical field
The present invention relates to a kind of mud pumping and cement pumping equipment, and to the application in the hydrocarbon well completion.The completion equipment of hydrocarbon well (hydrocarbon well), its completion technique of marine (offshore) and pumping equipment of for example mentioning and so on has been described specifically.
Background technology
Complicated, the time-consuming usually and final very expensive effort of the detection of hydrocarbon well, drilling and well completion.This brings in the example that increases the operation of some of challenge drilling and well completions especially true in those structures or operating environment or production site.
With regard to marine and some other drill-well operation, operating environment can be brought several challenges naturally that influence operating cost significantly.With regard to offshore drilling, often measure with the reduction expense such as maintenance equipment and device space minimum.In brief, for given operation on the sea, any increase of equipment needed thereby quantity or type, and the increase in the essential space that therefore produces, sizable increase that all will bring offshore set-up and operating cost.In some cases, can reduce expenses by the equipment that restriction is used.But, sacrifice even if on choice of equipment, make some, at sea available bottom space (footspace) remains very precious in the operation.
No matter the preciousness of the obtainable bottom space of offshore platform, as most of offshore boring island, offshore drilling platform had both comprised mud circulating system and cementation (cementing) system and many other drilling equipments usually.These systems are especially in the completion of underground well and therefore provide in the process of sleeve pipe and alternately used.In brief, along with drill bit creeps into downwards forming and to extend underground pit shaft, mud circulating system is used to not only to provide fluid but also removes chip with respect near the position drill bit that advances.In case boring is got into desired depth by drill bit, mud circulation temporarily stops, and drill bit is taken back ground with relevant drilling rod simultaneously.Then the wellbore casing sections is put into pit shaft downwards.In case wellbore casing is located rightly and mud circulation stops, the cementation system is moved to pump into cement paste by pit shaft, and wellbore casing is fixed on appropriate position.This process may be repeated until that then the well of desired depth finishes till the completion.That is to say that will proceed being lowered to of other drilling well, mud circulation and other wellbore casing, its cementation afterwards and fixed sleeving that is described periodically interrupts.
In the method for superincumbent completion, two kinds of dissimilar fluids, mud and cement paste depend in the operation of carrying out what stage to appear in the pit shaft.But these fluids are used for diverse purpose.Mud by pit shaft circulation with lubricated, cooling with promote advancing of drill bit.On the other hand, cement is introduced in the pit shaft wellbore casing is fixed on safe and final position.Therefore, a kind of introducing in wrong time in these fluids all has terrible consequences for correct completion.For example, the mud that is no more than about 1%-3% appears at the position that is used for cementation and will stop cement paste to solidify between the wellbore casing of that position and well bore wall and form suitable connection.Alternatively, the pollution of the cement of mud can stop drilling well and stop to advance of wellbore casing in drilling process.In these situations each has serious consequence probably, may need to close entire job with in new position drilling well again, wants the cost of hundreds of thousands dollar probably at least.
In view of cement paste or the mud contamination potential catastrophic effect in the unsuitable stage of completion, mud circulating system and cementation system are kept respectively on offshore boring island and are isolated mutually.Therefore, the position of mud circulating system on offshore boring island of operation 90%-97% time utilizes prime mover, pump and the miscellaneous equipment of several high pass filters to move in active drillng operation (active drilling operation).When near cementation during the time, mud circulation finishes, and from the independent cementation chamber of offshore boring island, above-described cementation system is moved, and uses prime mover, pump and the relevant device of the low relatively horsepower of himself.Though in view of as the latent consequences of above-described pollution, being understandable,, with regard to marine drilling platform, the huge cost that the maintenance of this distinct system and relevant device brings for rare already bottom space.
Summary of the invention
The invention provides a kind of pump assembly that is used for to pit shaft slurry conveyed and cement paste.Pump assembly comprises the prime mover that is connected to slush pump.Cement pump is connected in prime mover and the slush pump self one to carry cement to pit shaft.
Description of drawings
Fig. 1 is the lateral view that is used for the pump assembly of the prior art used in the mud pumping of pit shaft and cement pumping.
Fig. 2 is the lateral view that is used for the pump assembly embodiment that uses in the mud pumping and the cement pumping of the pit shaft of Fig. 1.
Fig. 3 is the lateral view of the pump assembly of Fig. 2 in the mud pumping application process of the pit shaft of Fig. 1.
Fig. 4 is the lateral view of the pump assembly of Fig. 2 in the cement pumping application process of the pit shaft of Fig. 1.
Fig. 5 is the lateral view that is used in the pump assembly alternative embodiment of the mud pumping of Fig. 1 and cement pumping application process.
Fig. 6 has summarized the flow chart that is used at the embodiment of the pump assembly of the mud pumping of pit shaft and cement pumping.
The specific embodiment
Embodiment is that some offshore hydrocarbon completion or the production equipment of reference example such as semisubmersible drilling platform and so on described.But, comprise that the offshore production facilities of other type of bootstrapping offshore boring island and barge drilling platform can be used the embodiments described herein.Land in addition completion and production equipment can use such embodiment.In any case the embodiments described herein can be used reducing the required total equipment of completion practice, thereby the saving with regard to fund cost, some fallback, bottom space and total weight of equipment is provided.Therefore, the embodiments described herein is especially favourable to operation on the sea.
Referring now to Fig. 1 and 2,, comprises that complete separate cement send and can have integrated or the cement pumping that is connected and the pump assembly 200 of mud pumping equipment 225,150 are observed by contrast with the use of the prior art of the pump assembly 100 of mud pumping equipment 125,150.Because being connected of cement pumping and mud pumping equipment 225,150, the pump assembly 200 of Fig. 2 is littler by comparison and more in light weight with the pump assembly 100 of Fig. 1.Therefore, can save a large amount of bottom space and weight in the production scene as what describe in further detail here.
The space of pointing out above and the saving of weight have finally reduced running cost and provide other advantage to completion practice.For example, just as illustrated in fig. 1 and 2, pump assembly 100,200 is provided to offshore production site by semisubmersible drilling platform 101.For expense and practicality problem, owing to its sea, semi-submersible nature, such offshore boring island 101 is accompanied by significant space and weight limits inherently.That is to say that unlike the production scene, land, the device space is restricted to the amount of the bottom space on the platform 175.In addition, in order to guarantee the stability of semisubmersible drilling platform 101, can carry out quite strict control to the weight of the offshore boring island 101 that comprises its all devices.Therefore, following the further describing of the availability of the littler and lighter weight pump assembly 200 shown in the embodiment of Fig. 2 has significant advantage like that.
Continue with reference to Fig. 2 now, as mentioned above, semisubmersible drilling platform 101 is shown in the pump assembly 200 that holds on the platform 175.Different with the pump assembly 100 of Fig. 1, the pump assembly 200 of Fig. 2 comprises the cement pumping equipment 225 that is directly connected to mud pumping equipment 150 through hydraulic pressure connecting line 250.Particularly, hydraulic pressure connecting line 250 is connected to the cement pump 128 of cement pumping equipment 225 on the slush pump 154 of mud pumping equipment 150.This connection allows slush pump 154 prime mover as cement pump 128.
Shown in Fig. 2-4, hydraulic pressure connecting line 250 circulation of fluids are travelled to and fro between cement pump 128 so that by traditional method piston mechanism there is moved back and forth, thereby drive cement pump 128.The hydraulic fluid that drives by hydraulic pressure connecting line 250 can be hydraulic oil or or even as the identical mud 300 that uses in the DRILLING APPLICATION process described below.Yet more preferably, water can be used, and part is because just as described in detail later this helps further to remove slush pump 154 in slush pump 154 pumping mud 300 backs.In any case the fluid of use is directed at piston mechanism rather than in the other parts of the cement pump 128 that may have cement paste 400.Therefore, the hydraulic fluid of selecting can be avoided the pollution of cement paste 400.
As the result of above-described connection, the cement pumping equipment 225 among the embodiment of demonstration needs cement prime mover 127 unlike the prior art embodiments of Fig. 1.Suppose that traditional cement pumping equipment 125 comprises a plurality of pumps 128 and prime mover 127 probably, remove such cement prime mover 127 and have considerable meaning.Just as described further below, the amount of holding cement pumping equipment 225 needed bottom spaces can reduce about 40% to about 65%.The increase of available footspace 201 as a result of can be seen.
Except the interests of the increase that obtains bottom space 201 above-mentioned, the cement prime mover 127 of removing Fig. 1 from the embodiment shown in Fig. 2 can obtain other benefit.For example, traditional cement prime mover 127 weight are above about 12,000 pounds.Therefore, remove each cement prime mover and not only save the space, and the remarkable minimizing of the semi-submersible type part 180 necessary equipment supported weight of offshore boring island 101 is provided.Therefore, control to a certain degree can offer semi-submersible type part 180, causes part floating drilling platform 101 increase of stability on the whole.
Continuation is referring to Fig. 2, and additional referring to Fig. 1, cement pumping equipment 225 is connected to mud pumping equipment 150 can recognizes more superiority from as shown above.In brief, as shown in Figure 1, cement pumping control module 126 is provided to control the cementation application as is further described.The mud pumping control module 155 that separates is provided to control the mud pumping similarly and uses (being further described below equally).But unwanted the time, the embodiment of Fig. 2 shows that single completion control module 255 is provided to guide the mud pumping and the cementation part of completion practice.Therefore, single operation person can be from the single location guide completion practice of offshore boring island 101, thereby makes the streamlined that is connected of operator and pump assembly 200 effectively.In addition, can save the bottom space and the weight of increase degree by removing another equipment (just removing cement pumping control module 126) on the platform 175.
Continuation is referring to Fig. 2, and cement pumping equipment 225 is with the integrated of mud pumping equipment 150 or be connected and described in further detail.It should be noted that this fact: though equipment 225,150 in the embodiment of Fig. 2, be connected, this integrated be (referring to the Fig. 3 and 4) that realizes by the modes that in the completion application process, keep mud 300 and cement paste 400 to isolate mutually.Therefore, the obtainable bottom space 201 that for example increases of above-described advantage, the weight of equipment that reduces and other are to realize under the situation of the integrity of not sacrificing this application.
As shown in Figure 2, cementation equipment 225 is to be provided on the cementation chamber 220 of platform 175.In the embodiment that shows, cementation equipment 225 is included in cement pump 128 and the cement mixer 129 on base (skid base) 222 tops.But,, eliminated the cement prime mover 127 of separation shown in Figure 1 and the needs of cement control module 126 as what show.Therefore, the size of base 222, even whole cementation chamber 220 has been reduced the obtained bottom space 201 that has stayed increase shown in the embodiment among Fig. 2 significantly with respect to base among Fig. 1 222 and cementation chamber 120.
Continuation is referring to Fig. 1 and Fig. 2, and in order to remove the needs to bigger cement prime mover 127, hydraulic pressure connecting line 250 is provided to connect cement pump 128 and slush pump 154.In the compatible embodiment of pump 128,154 hydraulic pressure, the hydraulic pressure connecting line 250 between them above-mentioned allows two pumps 128,154 all finally to be driven by same prime mover 153.In the embodiment shown in Figure 2, slush pump 154 is bigger than the horsepower of cement pump 128, thereby as with reference to following Fig. 3 and the 4 described sufficient supplies that guaranteed the power of mud pumping or cement pumping.In addition, though single cement pump 128 is shown and is connected on the single slush pump 154 in the embodiment of Fig. 2, in the embodiment that replaces, the part that a plurality of cement pumps 128 are provided as cementation equipment 225 is connected on the single or multiple slush pumps 154 of mud pumping equipment 150.
Also allow cementation equipment 225 remotely to arrange with respect to prime mover 153 in a way as the use hydraulic pressure connecting line 250 shown in top to connect pump 128,154.In brief, the conveying capacity of the intrinsic power of traditional hydraulic transmission is like this so that use the hydraulic pressure connecting line 250 shown in those for example will allow can be placed on any position on traditional offshore rig 101 to the compatible pump 128,154 of hydraulic pressure relative to each other.Therefore, the conventional rigs structure Design figure that is used to have relatively independent pumping equipment does not need to revise up hill and dale to hold the embodiment that has used the pumping equipment that connects as shown in the figure described herein.
Continuation is referring to Fig. 2, and additional referring to Fig. 1, and above-described slush pump 154 is shown as the part of the assembly of the mud pump equipment 150 that also comprises prime mover 153 and slurry tank 151.It can be on big traditional diesel oil prime mover 153 mechanical, electrical or other motor that slush pump 154 is directly connected to.Slush pump 154 also is connected on the slurry tank 151 by circulation line 152.As what describe below, these circulation lines provide the fluid of the pit shaft 197 of mud and water or other liquid turnover jar 151 and formation to flow.
The operation of pump assembly 200 is that the completion control module 255 by single integral body guides, rather than spreads all over a plurality of control modules that offshore boring island 101 distributes.Except guiding the mud pumpdown, completion control module 255 is configured to be connected to cement pumping equipment 225 to use according to the guide cementation that further describes below.In the embodiment that shows, boring tower 110 contacts with the platform 175 of offshore boring island 101 in the centre position.Boring tower 110 is used to support the various instruments that are used to form or enter the pit shaft 197 under it.Thisly enter the completion that can be used for describing in further detail below, be used for well production or the various application that enters well.
Offshore boring island 101 comprises can water-immersed part 180, and it is configured to always support platform 175 on the water surface 190.Offshore boring island 101 can water-immersed part 180 or other parts can be anchored, bolt or otherwise be fixed on the sea bed 195 of ocean or other water body 190.Validity that can water-immersed part 180 grapplings is especially improved to a certain extent by removing for example any cement prime mover 127 of very large equipment (referring to Fig. 1) on it.The advantage of the improvement stability shown in as shown in Figure 2, offshore boring island 101 can show has comprised the extra advantage that available footspace 201 increases simultaneously.In the appropriate position of production scene, pit shaft 197 can utilize wellbore casing 185 beginnings of advancing within it with being stabilized by location and fixing offshore boring island 101.Completion practice then describes in further detail ground and generation thereupon according to following.
Referring now to Fig. 3,, the mud pumping is used and is described, and the embodiment of wherein above-described pump assembly 200 is used.In the embodiment that shows, the slush pump 154 of pump assembly 200 is to be used to guide 1500 to 2500 horsepowers downward pump of the drilling rod 325 of mud 300 in the marine riser (marine riser pipe) 182.Simultaneously, drill bit 350 rotations increase the degree of depth of pit shaft 197 to grind and rock cutting fragment and earth cuttings.In the embodiment that shows, when pit shaft 197 was formed, mud 300 was guided towards drill bit 350 by slush pump 154 with the pressure of height to about 5000PSI.
Continuation is referring to Fig. 3, mud 300 by shown in drilling rod 325 deliveries and leave drill bit 350 in the bottom of pit shaft 197.In this way, when drilling bit grinding and rock cutting and other stratum, can provide thermal conditioning lubricated and to a certain degree to drill bit 350.In addition, mud 300 is transferred with such pressure, and this pressure is enough to force these rocks and earth cuttings upwards to return near the drilling rod 325 marine riser 182.In this way, mud 300 and landwaste are removed by return line 375.In the embodiment that shows, return line 375 injects slurry tank 151.Mud shaker or other screening mechanism can be used to guarantee that landwaste is separated greatly from the mud 300 that refluxes.Therefore, show that mud 300 can be recycled back into slush pump 154 by circulation line 152, and finally get back to the drilling well to be used for continuing in the drilling rod 325 as top.
Show as top, using circulating mud 300 drilling well simultaneously to provide lubricated and abrasive drill 350 is cooled off to a certain extent.Under the seabed 195 during to deep drawing more, the circulation of mud 300 also allows to remove landwaste and chip at pit shaft 197.In the embodiment that shows, such mud circulation and drilling well are guided by completion control module 255.In case reached the given depth of pit shaft, can use well control system unit 255 with stop mud 300 shown in circulation and regain drilling rod 325.Therefore, the cementation of wellbore casing sections 185 can follow closely.Additionally referring to Fig. 4, completion control module 255 also is used to guide following cementation to use as following.
Referring now to Fig. 4,, completion control module 255 guides cementation as shown in figure.Substantially do not have in pit shaft 197 under the situation of mud 300 (referring to Fig. 3), the end and the marine riser 182 of the pit shaft setting of casing part of having sent to 186 of cementation pipe 425 below subsea wellhead installations 183 are sent to.As shown in Figure 4, the end that stopper (plug) 460 is positioned in the wellbore casing sections of having sent to 186 to be sealing it, this with in the past to above-mentioned wellbore casing sections 185 done the same.In this way, the cementation pipe 425 that pierces through stopper 460 can be used with delivery cement paste 400 to its down-hole.Therefore, cement paste 400 is forced near the wellbore casing sections of having sent to 186 and upwards returns along pit shaft, with stable the wellbore casing sections sent to 186 and be fixed on appropriate position.
In the above among the embodiment of Miao Shuing, cement pump 128 is moved about 200 horsepowers to about 800 horsepowers by slush pump 154 supplies, is preferably about 300 horsepowers, with according to shown in guide cement paste 400.Can produce about 1500 to 15000PSI by this way to drive cement paste 400 as shown in figure.In addition, cement paste 400 is driven enter pit shaft 197 before or in this process with low-voltage driving cement mixer 129.In fact, in one embodiment, cement mixer 129 can be driven by cement pump 128.In addition, in such embodiments, supply with power for cement pump 128 for such task and realize via being connected of hydraulic pressure connecting line 250 with slush pump 154 by cement pump 128.
As shown above, the same completion control module 255 that uses in the guiding mud circulation also is used to guide the cementation of description.Therefore, some device spaces in the cementation chamber 220 have been saved.But even more significantly, the structure of pump assembly 200 self is such so that the cementation of describing is used and can not used in the prior art for example like that the cement prime mover of the special use of (referring to prime mover 127 of Fig. 1) and carry out.Therefore, on platform 201, can obtain the further increase of available footspace 201 sizes.
As shown in top, remove special-purpose cement prime mover and can realize by utilizing slush pump 154 to drive cement pumps 128.As shown in Figure 4, this can realize by utilizing hydraulic pressure connecting line 250 that pump 128,154 is coupled together, and is compatible at these hydraulic pressure connecting line 250 place's pumps 128,154 hydraulic pressure.But alternatively, as shown in Figure 5, cement pump 128 can combine with prime mover 153 so that remove needs to cement special prime mover.In brief, cement pump 128 can directly be driven by prime mover 153, and not be used in the long hydraulic pressure connecting line 250 of operation between the pump 128,154.In fact, in the embodiment that Fig. 5 shows, whole cementation chamber 220 is positioned near prime mover 153 and slurry tank 151 rearranges the another side at boring tower 110.This can realize by re-constructing circulation line 552 as shown in the figure.In any case,, provide the available footspace 501 that increases owing to the needs that lack cement special prime mover.
Among the embodiment of Miao Shuing, in order to simplify completion and to reduce the total equipment that needs in this technology, mud pumping equipment 150 and cement pumping equipment 225 are joined together in the above.But this carries out by this way so that keep the isolation of mud 300 and cement paste 400.That is to say that for example the separate pump of cement pump 128 and so on is left the parts of pump assembly 200, rather than for example use that the single pump of slush pump 154 and so on comes not only directly to drive the circulation of mud 300 but also drive cement paste 400.In this way, the driving physical isolation of the circulation maintenance of mud 300 and cement paste 400 is opened.Therefore, the risk of being polluted by cement paste 400 in drilling process or being polluted by mud 300 in the cementation process does not have owing to the embodiment that uses pump assembly 200 described herein increases.However, by cement pump 128 being directly connected to one of slush pump 154 and/or its prime mover 153, removed a large amount of equipment (for example cement prime mover among Fig. 1 127).
Referring now to Fig. 6,, also referring to Fig. 1-5, a kind of completion method is summarized in a flowchart simultaneously.The cementation that the method for general introduction uses the embodiment of above-described pump assembly 200,500 to be used for the drilling and well completion operation is used.For example, as shown in the figure be transported to the production scene at 600 pump assemblys, here prime mover of pump assembly is started (referring to 620).As shown in 640 to 660, the slush pump of the starting driving pump unit of prime mover pumping mud (referring to Fig. 3) in the DRILLING APPLICATION process.
Different with top traditional pump assembly of describing referring to Fig. 1, be used for after drilling well the embodiment of the cement pump of wellbore casing cementation can be driven uniquely.That is to say that shown in 680, the cement pump of pump assembly can drive (referring to Fig. 2-4) by slush pump above-mentioned.Alternatively, as referring to 680 also obvious, cement pump can be by the prime mover driven identical with slush pump (referring to Fig. 5).In any case, eliminated needs to cement pump prime mover of the separation that is specifically designed to independent driving cement pump.As above-described, this realizes by cement pump is combined or connects together according to the mode that keeps mud and cement paste to isolate in operation process with certain mud pump equipment.
As what point out, the embodiment that is used in the pump assembly in the completion practice described herein is used at the potential cement paste of the incorrect stage of completion or the mode of mud contamination catastrophic effect according to avoiding.The pump assembly of describing has kept the mud circulation of basic isolation and cement paste to use when comprising the mud pumping equipment that connects and cement pumping equipment tactfully.Therefore, single integrated well completion assemblies is provided, and it possesses the required bottom space of equipment of the equipment, the gross weight of equipment amount that reduces and the minimizing that reduce quantity, and does not emit the risk of described possibility of pollution.
Though exemplary embodiment has been described the concrete integrated well completion assemblies of the pump assembly that is included on the semisubmersible drilling platform, embodiment in addition is possible.For example, except the well completion assemblies of land, can use the offshore boring island of many alternative types.In addition, in order to illustrate, embodiment is basic with reference to comprising that the pump unit of single pump and/or prime mover is described.But the pump unit that provides in fact can comprise a plurality of pumps or prime mover.For example, a plurality of cement pumps can be connected to a plurality of slush pumps or more directly be connected on their a plurality of prime mover so that the embodiment of the pump assembly that relates to above is provided.In addition, can under the situation of the scope that does not break away from the embodiment that describes, carry out many variations, modification and replacement.
Claims (25)
1. pump assembly that is used for to pit shaft slurry conveyed and cement paste, it comprises:
Be used for slush pump to the pit shaft slurry conveyed;
Prime mover is used to drive described slush pump and is connected to slush pump; With
Be used for the cement pump to pit shaft transporting water mud, it is connected to one of described slush pump and described prime mover, to drive described cement pump.
2. pump assembly as claimed in claim 1, wherein, described cement pump is by described slush pump hydraulic-driven.
3. pump assembly as claimed in claim 2, wherein, described pump assembly is a completion equipment, remotely arranges with respect to described slush pump at cement pump described in this equipment.
4. pump assembly as claimed in claim 1, wherein, the basic and cement paste isolation of described mud.
5. pump assembly as claimed in claim 1, wherein, described cement pump integral body is connected to described prime mover.
6. pump assembly as claimed in claim 1 wherein, also comprises unified completion control module, with the conveying of guiding mud and the conveying of cement paste.
7. pump assembly as claimed in claim 1, wherein, described slush pump is first slush pump, described prime mover is first prime mover, and described cement pump is first cement pump, described pump assembly also comprises:
Be used for second slush pump to the pit shaft slurry conveyed;
Second prime mover is used to drive described second slush pump, and is connected on second slush pump; With
Be used for second cement pump to pit shaft transporting water mud, it is connected to one of described second slush pump and described second prime mover, to drive described second cement pump.
8. pump assembly as claimed in claim 1 wherein, also comprises:
Cement mixer; With
Base, wherein, described cement mixer and cement pump are placed on the base.
9. pump assembly as claimed in claim 8, wherein, described base approximately is being five feet long between about 15 feet long.
10. pump assembly as claimed in claim 8, wherein, described base is less than about 10 feet long.
11. pump assembly as claimed in claim 10 wherein, comprise that also being connected to described slush pump is used for slurry tank from pit shaft to described slush pump circulating mud, and wherein, described slurry tank comprises screening mechanism, with from mud separation pit shaft landwaste.
12. an offshore completion equipment comprises:
Be present in part in the immersed water under water;
Platform is arranged in described the immersion on the water top partly, is used to be present in waterborne; With
Be fixed on the pump assembly on the described platform, described pump assembly comprises:
Be used for the mud guiding is entered the slush pump of pit shaft,
Prime mover is used to drive described slush pump and is connected to slush pump; With
Be used for the cement paste guiding is entered the cement pump of pit shaft, it is connected to one of described slush pump and prime mover, to drive described cement pump.
13. offshore completion equipment as claimed in claim 12, wherein, described cement pump is connected to one of described slush pump and prime mover in the mode that increases the available footspace on the described platform.
14. offshore completion equipment as claimed in claim 12, wherein, described cement pump is connected to one of described slush pump and prime mover in the mode of total weight of equipment of reducing described offshore completion equipment.
15. offshore completion equipment as claimed in claim 12, wherein, this equipment is one of semisubmersible drilling platform, bootstrap type offshore boring island and barge drilling platform.
16. offshore completion equipment as claimed in claim 12 wherein, also comprises:
Be fixed on the boring tower on the described platform;
Be used to transfer to the marine riser below the described boring tower; With
Be used for advancing and entering the wellbore casing of pit shaft by described marine riser.
17. offshore completion equipment as claimed in claim 16 wherein, also is included in the drilling rod that the drill bit place stops, and is used for transferring to described wellbore casing and carries out drilling well and deliver mud.
18. offshore completion equipment as claimed in claim 16 also comprises:
Stopper is used to seal the end of described wellbore casing; With
The cementation pipe is used to transfer to described wellbore casing and pierces through described stopper to deliver cement paste to pit shaft.
19. slurry conveyed and cement paste are to the method for pit shaft, this method comprises:
Starting prime mover is connected to slush pump on this prime mover with driving;
Use described slush pump to enter pit shaft with guiding mud;
Utilize one of described prime mover and slush pump to drive cement pump; With
Use described cement pump to enter pit shaft with the guiding cement paste.
20. method as claimed in claim 19, wherein, the use of described slush pump and the use of described cement pump are by unified completion control module guiding.
21. method as claimed in claim 19 wherein, also is included in the physical isolation that keeps mud and cement paste between the use of the use of described slush pump and described cement pump.
22. method as claimed in claim 19, wherein, described mud is directed into pit shaft by drilling rod, and this method comprises that also the drill bit that is rotated in the drilling rod end is to increase the degree of depth of pit shaft.
23. method as claimed in claim 22 also comprises:
Remove mud and landwaste to slurry tank from pit shaft;
From mud, separate landwaste; With
From slurry tank to the slush pump circulating mud.
24. method as claimed in claim 22, wherein, described pit shaft is lined with wellbore casing, and this method also comprises:
Regain drilling rod from pit shaft; With
At the terminal positioning plug of wellbore casing with the seal shaft sleeve pipe.
25. method as claimed in claim 24 wherein, comprises also and utilizes the cementation pipe to pierce through described stopper that described cementation pipe is used to deliver cement paste to pit shaft, to be used for the cementing of described wellbore casing to described pit shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610212850.7A CN105840136A (en) | 2006-06-23 | 2007-06-14 | Pump assembly, well completion device at sea and method for transferring slurry and cement paste to wellholes |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US80569306P | 2006-06-23 | 2006-06-23 | |
| US60/805,693 | 2006-06-23 | ||
| US11/560,258 | 2006-11-15 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610212850.7A Division CN105840136A (en) | 2006-06-23 | 2007-06-14 | Pump assembly, well completion device at sea and method for transferring slurry and cement paste to wellholes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101454535A true CN101454535A (en) | 2009-06-10 |
Family
ID=40735907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007800198951A Pending CN101454535A (en) | 2006-06-23 | 2007-06-14 | Integrated pump assembly for well completion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101454535A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4899832A (en) * | 1985-08-19 | 1990-02-13 | Bierscheid Jr Robert C | Modular well drilling apparatus and methods |
| WO2005088131A1 (en) * | 2004-03-12 | 2005-09-22 | Neg Micon A/S | Variable capacity oil pump |
-
2007
- 2007-06-14 CN CNA2007800198951A patent/CN101454535A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4899832A (en) * | 1985-08-19 | 1990-02-13 | Bierscheid Jr Robert C | Modular well drilling apparatus and methods |
| WO2005088131A1 (en) * | 2004-03-12 | 2005-09-22 | Neg Micon A/S | Variable capacity oil pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10808508B2 (en) | Telemetry operated tools for cementing a liner string | |
| US6530437B2 (en) | Multi-gradient drilling method and system | |
| US9963628B2 (en) | Curauá fibers as lost-circulation materials and fluid-loss additives in wellbore fluids | |
| CA2563738C (en) | System and vessel for supporting offshore fields | |
| AU2003241367B2 (en) | System and method for flow/pressure boosting in subsea | |
| EP2198120B1 (en) | Pumping module and system | |
| CN105840136A (en) | Pump assembly, well completion device at sea and method for transferring slurry and cement paste to wellholes | |
| EP2013446B1 (en) | Wellbore system | |
| US7152681B2 (en) | Method and arrangement for treatment of fluid | |
| CN102575501A (en) | Systems and methods for circulating out a well bore influx in a dual gradient environment | |
| CA2519365A1 (en) | System and method for treating drilling mud in oil and gas well drilling applications | |
| US6543537B1 (en) | Method and apparatus for producing an oil reservoir | |
| US8919449B2 (en) | Offshore drilling and production systems and methods | |
| US6745851B1 (en) | Methods and system for processing of drilling fluid | |
| MXPA05003579A (en) | Appartus and methods for installing casing in a borehole. | |
| CN101454535A (en) | Integrated pump assembly for well completion | |
| US20170101833A1 (en) | Drilling System Including a Pressure Intensifier | |
| RU2278237C2 (en) | Well drilling system and method, system for pressure gradient regulation in drilling fluid column | |
| CN101641496A (en) | Method of interconnecting subterranean boreholes | |
| Hopper et al. | Catwell and Sherdaps for deep-water production fields |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20090610 |