CN103321626A - Fracture and sand prevention integrated completion pipe string and application method thereof - Google Patents
Fracture and sand prevention integrated completion pipe string and application method thereof Download PDFInfo
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- CN103321626A CN103321626A CN2013102913895A CN201310291389A CN103321626A CN 103321626 A CN103321626 A CN 103321626A CN 2013102913895 A CN2013102913895 A CN 2013102913895A CN 201310291389 A CN201310291389 A CN 201310291389A CN 103321626 A CN103321626 A CN 103321626A
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Abstract
The invention relates to a fracture and sand prevention integrated completion pipe string and an application method thereof. The fracture and sand prevention integrated completion pipe string comprises a sand prevention pipe string and a fracture production pipe string; the fracture production pipe string comprises a safety valve, a first sliding sleeve, a production packer, a first landing joint, a locating seal, a first inserting seal, a second sliding sleeve, a second inserting seal, a second landing joint, a punching pipe, a NO-GO landing joint and a guiding shoe. The safety vale is arranged on the upper portion of an oil pipe. The first sliding sleeve, the production packer, the first landing joint and the locating seal are sequentially arranged on a portion, below the safety valve, of the oil pipe at intervals. The first inserting seal is arranged on a portion, tightly close to the bottom of the locating seal, of the oil pipe. The second sliding sleeve, the second inserting seal, the second landing joint, the punching pipe and the NO-GO landing joint are sequentially arranged on a portion, below the first inserting seal, of the oil pipe at intervals. The guiding shoe is arranged on the bottom of the oil pipe. The sand prevention pipe string comprises a top packer, a blind pipe, a sand prevention screen pipe and a third inserting seal, where the blind pipe, the sand prevention screen pipe and the third inserting seal are sequentially connected to the bottom of the top packer. Due to the adoption of the fracture and sand prevention integrated completion pipe string, fracture construction and sand prevention operation procedures are simplified, operation time is saved, operation cost is reduced, in addition, fracturing and production can be more convenient, selective single-layer development or multi-layer development can be achieved according to production needs, and production can be more flexible.
Description
Technical field
The present invention relates to a kind of completion tubular column and application process thereof, being specifically related to a kind of weaker zone that is applicable to needs sand control, compacted zone to need the integrated completion tubular column of fracturing sand control and the application process thereof of pressure break.
Background technology
In oil-gas field development, the loose sand permeability is generally higher, but cementing relatively poor, so need to adopt sand control measure during completion.And the tight sand permeability is less, needs to adopt the reservoir reconstruction measure.Because there is larger difference in reservoir properties, therefore usually two kinds of not simultaneously exploitations of reservoir.Yet more and more higher to the integrated development requires of different reservoir along with the oil-gas field development difficulty is more and more higher, there is the responsible oil gas field of a large amount of tops weaker zone, bottom compacted zone in oil gas field especially at sea.Therefore study and a kind ofly not only be fit to loose reservoir but also be fit to compact reservoir completion tubular column and method, for improve single well productivity, to save development cost significant.
For loose, the common oil gas field that exists of fine and close multilayer, measure is exploited respectively in general employing at present, and namely weaker zone adopts sand control pipe, compacted zone to adopt the pressure break completion tubular column.Carry out fracturing work if same well then needs to be lowered to first a fracturing string, then fracturing string is tripped out and be lowered to again special sand control flow string one time.Owing to having increased flow chart, cause the completion time significantly to increase and increase the completion cost.
Summary of the invention
For the problems referred to above, the purpose of this invention is to provide and a kind ofly can develop loose reservoir, can develop again the integrated completion tubular column of fracturing sand control and the application process thereof of compact reservoir.
For achieving the above object, the present invention takes following technical scheme: the integrated completion tubular column of a kind of fracturing sand control, it is characterized in that, and it comprises sand control pipe and fracturing tubing string; Described fracturing tubing string comprises that safety valve, the first sliding sleeve, production packer, first are located joint, oil pipe, location sealing, the first insert-seal, the second sliding sleeve, the second insert-seal, second and are located joint, perforated pipe, NO-GO and are located joint and guide shoe; Wherein, described safety valve is arranged on the top of described oil pipe, and described the first sliding sleeve, production packer, first are located joint and location sealing is disposed on the described oil pipe of described safety valve below successively; Described the first insert-seal is arranged on the described oil pipe of adjacent described location sealing bottom, described the second sliding sleeve, the second insert-seal, second are located joint, perforated pipe and NO-GO and are located joint and are disposed on successively on the described oil pipe of described the first insert-seal below, and described guide shoe is arranged on the bottom of described oil pipe; Described sand control pipe comprises top packer, blind pipe, sand control screen and the 3rd insert-seal; Wherein, the bottom of described top packer connects described blind pipe, and the bottom of described blind pipe connects described sand control screen, and the bottom of described sand control screen connects described the 3rd insert-seal.
The 3rd insert-seal of described sand control pipe is inserted in the isolation packer that sets in sleeve pipe, and the first insert-seal of described fracturing tubing string and the second insert-seal are inserted in respectively in the top packer and the 3rd insert-seal of described sand control pipe.
Described fracturing tubing string is hung by the top connected pipes and is placed in the described sleeve pipe.
The application process of the integrated completion tubular column of a kind of above-mentioned fracturing sand control, it may further comprise the steps:
1) after sleeve pipe is finished perforation, is lowered to isolation packer and finishes and set;
2) be lowered to sand control pipe, and the 3rd insert-seal of sand control pipe is inserted in the isolation packer;
3) be lowered to the fracturing tubing string, and make in the first insert-seal of fracturing tubing string and the top packer and the 3rd insert-seal that the second insert-seal inserts respectively sand control pipe;
4) the fracturing tubing string is connected with sand control pipe by oil pipe, and by top connected pipes extension the fracturing tubing string is placed in the sleeve pipe.
When the compacted zone of pressure break bottom, close the first sliding sleeve and the second sliding sleeve, set up the closed system that is formed by isolation packer, the 3rd insert-seal, the second insert-seal and artificial bottom of a well; At this moment, fracturing fluid flows out in the perforated pipe of fracturing tubing string and guide shoe under the operations involving high pressure of ground, passes preforation tunnel and flows into the bottom compacted zone, to realize the fracturing operation to the bottom compacted zone.
If only production top weaker zone at first is lowered to blanking plug and places second to be located the joint, stop up real bottom compacted zone and produce passage; Then open the second sliding sleeve, set up the top weaker zone and produce passage; At this moment, the gas of top weaker zone enters the fracturing tubing string, and prevents that under the sand control screen effect reservoir sand from entering the fracturing tubing string, to realize the stand-alone development to the top weaker zone.
If only production bottom compacted zone is closed the second sliding sleeve, guarantee that simultaneously second is located in the joint without blanking plug; At this moment, the gas of bottom compacted zone enters the fracturing tubing string by perforated pipe and guide shoe, to realize the stand-alone development to the bottom compacted zone.
If production top weaker zone and bottom compacted zone are then opened the second sliding sleeve simultaneously, guarantee that simultaneously second is located in the joint without blanking plug; At this moment, the gas of top weaker zone and bottom compacted zone will flow in the fracturing tubing string jointly, adopt to realize that bilayer closes.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the present invention has simplified pressing crack construction and sand control treatment flow process owing to having adopted pressure break and sand prevention integrated completion tubular column, has saved the activity duration, reduced operating cost, and so that pressure break and production are convenient.2, the present invention can selectively develop single or multiple lift and develop jointly according to need of production, makes production more flexible.3, the present invention has been owing to having installed safety control at tubing string, and is provided with supporting with it control system, can guarantee that therefore pressure break and production period security risk are controlled.4, but tubing string size of the present invention adopts optimum organization, therefore can realize the separate zone production of many cover oil reservoirs.5, simple, the technology maturation of operating procedure of the present invention can be widely used in the integrated exploitation of reservoir of multiple different physical property.
Description of drawings
Fig. 1 is the structural representation of fracturing tubing string of the present invention;
Fig. 2 is the structural representation of sand control pipe of the present invention;
Fig. 3 is use state diagram of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
As shown in Figure 1 and Figure 2, the present invention includes a fracturing tubing string 100 and a sand control pipe 200.
As shown in Figure 1, fracturing tubing string 100 comprises that safety valve 1, the first sliding sleeve 2, production packer 3, first are located joint 4, oil pipe 5, location sealing 6, the first insert-seal 7, the second sliding sleeve 8, the second insert-seal 9, second and are located joint 10, perforated pipe 11, NO-GO and are located joint 12 and guide shoe 13.Wherein, safety valve 1 is arranged on the top of oil pipe 5, and the first sliding sleeve 2, production packer 3, first are located joint 4 and location sealing 6 is disposed on the oil pipe 5 of safety valve 1 below successively.The first insert-seal 7 is arranged on the oil pipe 5 of adjacent location sealing 6 bottoms, the second sliding sleeve 8, the second insert-seal 9, second are located joint 10, perforated pipe 11 and NO-GO and are located joint 12 and are disposed on successively on the oil pipe 5 of the first insert-seal 7 belows, and guide shoe 13 is arranged on the bottom of oil pipe 5.
As shown in Figure 2, sand control pipe 200 comprises top packer 14, blind pipe 15, sand control screen 16 and the 3rd insert-seal 17.Wherein, the bottom of top packer 14 connects blind pipe 15, and the bottom of blind pipe 15 connects sand control screen 16, and the bottom of sand control screen 16 connects the 3rd insert-seal 17.
As shown in Figure 3, the present invention at first adopts drilling rod or cable to be lowered to isolation packer 18 and to finish and sets after sleeve pipe 19 is finished perforation.Be lowered to the sand control pipe 200 that is formed by top packer 14, blind pipe 15, sand control screen 16 and the 3rd insert-seal 17 with drilling rod again, and the 3rd insert-seal 17 is inserted in the isolation packer 18.Then be lowered to and be located joint 4, oil pipe 5, location sealing 6, the second insert-seal 7, the second sliding sleeve 8, the second insert-seal 9, second by safety valve 1, the first sliding sleeve 2, production packer 3, first and be located joint 10, perforated pipe 11 and NO-GO and be located the fracturing tubing string 100 that joint 12 and guide shoe 13 form, and the first insert-seal 7 and the second insert-seal 9 are inserted respectively in the top packer 14 and the 3rd insert-seal 17 of sand control pipe 200.At this moment, fracturing tubing string 100 is connected with sand control pipe 200 by oil pipe 5, and by top connected pipes extension 20 fracturing tubing string 100 is placed in the sleeve pipe 19.
When the compacted zone of pressure break bottom, close the first sliding sleeve 2 and the second sliding sleeve 8 by special tool, set up thus the closed system that is formed by isolation packer 18, the 3rd insert-seal 17, the second insert-seal 9 and artificial bottom of a well.At this moment, fracturing fluid flows out in the perforated pipe 11 of fracturing tubing string and guide shoe 13 under the operations involving high pressure of ground, passes preforation tunnel and flows into the bottom compacted zone, thereby realize the fracturing operation to the bottom compacted zone.
If only production top weaker zone at first places second to be located joint 10 places by being lowered to the blanking plug (not shown), stop up real bottom compacted zone and produce passage.Then open the second sliding sleeve 8, set up the top weaker zone and produce passage.At this moment, the gas of top weaker zone enters fracturing tubing string 100, and prevents that reservoir sand from entering fracturing tubing string 100 under sand control screen 16 effects, thereby realizes the stand-alone development to the top weaker zone.
If only production bottom compacted zone is then closed the second sliding sleeve 8 by special tool, make the gas of top weaker zone can't enter fracturing tubing string 100, guarantee that simultaneously second is located in the joint 10 without blanking plug.At this moment, the gas of bottom compacted zone then enters fracturing tubing string 100 by perforated pipe 11 and guide shoe 13, thereby realizes the stand-alone development to the bottom compacted zone.
If production top weaker zone and bottom compacted zone are then opened the second sliding sleeve 8 simultaneously, guarantee that simultaneously second is located in the joint 10 and gets final product without blanking plug.At this moment, the gas of top weaker zone and bottom compacted zone will flow in the fracturing tubing string 100 jointly, adopt thereby the realization bilayer closes.
The various embodiments described above only are used for explanation the present invention, and wherein the structure of each parts and connected mode etc. all can change to some extent, and every equivalents and improvement of carrying out on the basis of technical solution of the present invention all should do not got rid of outside protection scope of the present invention.
Claims (8)
1. the integrated completion tubular column of fracturing sand control is characterized in that, it comprises sand control pipe and fracturing tubing string;
Described fracturing tubing string comprises that safety valve, the first sliding sleeve, production packer, first are located joint, oil pipe, location sealing, the first insert-seal, the second sliding sleeve, the second insert-seal, second and are located joint, perforated pipe, NO-GO and are located joint and guide shoe; Wherein, described safety valve is arranged on the top of described oil pipe, and described the first sliding sleeve, production packer, first are located joint and location sealing is disposed on the described oil pipe of described safety valve below successively; Described the first insert-seal is arranged on the described oil pipe of adjacent described location sealing bottom, described the second sliding sleeve, the second insert-seal, second are located joint, perforated pipe and NO-GO and are located joint and are disposed on successively on the described oil pipe of described the first insert-seal below, and described guide shoe is arranged on the bottom of described oil pipe;
Described sand control pipe comprises top packer, blind pipe, sand control screen and the 3rd insert-seal; Wherein, the bottom of described top packer connects described blind pipe, and the bottom of described blind pipe connects described sand control screen, and the bottom of described sand control screen connects described the 3rd insert-seal.
2. the integrated completion tubular column of a kind of fracturing sand control as claimed in claim 1, it is characterized in that, the 3rd insert-seal of described sand control pipe is inserted in the isolation packer that sets in sleeve pipe, and the first insert-seal of described fracturing tubing string and the second insert-seal are inserted in respectively in the top packer and the 3rd insert-seal of described sand control pipe.
3. the integrated completion tubular column of a kind of fracturing sand control as claimed in claim 2 is characterized in that, described fracturing tubing string is hung by the top connected pipes and is placed in the described sleeve pipe.
4. application process such as the integrated completion tubular column of each described fracturing sand control of claim 1 to 3, it may further comprise the steps:
1) after sleeve pipe is finished perforation, is lowered to isolation packer and finishes and set;
2) be lowered to sand control pipe, and the 3rd insert-seal of sand control pipe is inserted in the isolation packer;
3) be lowered to the fracturing tubing string, and make in the first insert-seal of fracturing tubing string and the top packer and the 3rd insert-seal that the second insert-seal inserts respectively sand control pipe;
4) the fracturing tubing string is connected with sand control pipe by oil pipe, and by top connected pipes extension the fracturing tubing string is placed in the sleeve pipe.
5. the application process of the integrated completion tubular column of fracturing sand control as claimed in claim 4, it is characterized in that, when the compacted zone of pressure break bottom, close the first sliding sleeve and the second sliding sleeve, set up the closed system that is formed by isolation packer, the 3rd insert-seal, the second insert-seal and artificial bottom of a well; At this moment, fracturing fluid flows out in the perforated pipe of fracturing tubing string and guide shoe under the operations involving high pressure of ground, passes preforation tunnel and flows into the bottom compacted zone, to realize the fracturing operation to the bottom compacted zone.
6. the application process of the integrated completion tubular column of fracturing sand control as claimed in claim 4 is characterized in that, if production top weaker zone only at first is lowered to blanking plug and places second to be located the joint, stops up real bottom compacted zone and produces passage; Then open the second sliding sleeve, set up the top weaker zone and produce passage; At this moment, the gas of top weaker zone enters the fracturing tubing string, and prevents that under the sand control screen effect reservoir sand from entering the fracturing tubing string, to realize the stand-alone development to the top weaker zone.
7. the application process of the integrated completion tubular column of fracturing sand control as claimed in claim 4 is characterized in that, if production bottom compacted zone is only closed the second sliding sleeve, guarantees that simultaneously second is located in the joint without blanking plug; At this moment, the gas of bottom compacted zone enters the fracturing tubing string by perforated pipe and guide shoe, to realize the stand-alone development to the bottom compacted zone.
8. the application process of the integrated completion tubular column of fracturing sand control as claimed in claim 4 is characterized in that, if simultaneously production top weaker zone and bottom compacted zone are then opened the second sliding sleeve, guarantees that simultaneously second is located in the joint without blanking plug; At this moment, the gas of top weaker zone and bottom compacted zone will flow in the fracturing tubing string jointly, adopt to realize that bilayer closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310291389.5A CN103321626B (en) | 2013-07-11 | 2013-07-11 | A kind of fracturing sand control integration completion tubular column and application process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310291389.5A CN103321626B (en) | 2013-07-11 | 2013-07-11 | A kind of fracturing sand control integration completion tubular column and application process thereof |
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| Publication Number | Publication Date |
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| CN103321626A true CN103321626A (en) | 2013-09-25 |
| CN103321626B CN103321626B (en) | 2016-01-13 |
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| CN201310291389.5A Active CN103321626B (en) | 2013-07-11 | 2013-07-11 | A kind of fracturing sand control integration completion tubular column and application process thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643931A (en) * | 2013-12-18 | 2014-03-19 | 中国海洋石油总公司 | Completion and fracture integrated pipe column of offshore openhole horizontal well and construction method of pipe column |
| CN103912257A (en) * | 2014-04-28 | 2014-07-09 | 中国石油集团渤海钻探工程有限公司 | Pressure dragging layering fracturing device |
| CN107620582A (en) * | 2017-08-08 | 2018-01-23 | 广州海洋地质调查局 | Bilayer sleeve sand control completion technique and double-layer anti-sand completion tubular column |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643931A (en) * | 2013-12-18 | 2014-03-19 | 中国海洋石油总公司 | Completion and fracture integrated pipe column of offshore openhole horizontal well and construction method of pipe column |
| CN103912257A (en) * | 2014-04-28 | 2014-07-09 | 中国石油集团渤海钻探工程有限公司 | Pressure dragging layering fracturing device |
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| CN107620582A (en) * | 2017-08-08 | 2018-01-23 | 广州海洋地质调查局 | Bilayer sleeve sand control completion technique and double-layer anti-sand completion tubular column |
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| CN103321626B (en) | 2016-01-13 |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation |