CN105545282A - Layering continuous well testing system and use method thereof - Google Patents
Layering continuous well testing system and use method thereof Download PDFInfo
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- CN105545282A CN105545282A CN201510908918.0A CN201510908918A CN105545282A CN 105545282 A CN105545282 A CN 105545282A CN 201510908918 A CN201510908918 A CN 201510908918A CN 105545282 A CN105545282 A CN 105545282A
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- 238000012360 testing method Methods 0.000 title claims abstract description 114
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract description 72
- 238000004519 manufacturing process Methods 0.000 claims abstract description 54
- 230000015572 biosynthetic process Effects 0.000 claims description 81
- 238000010276 construction Methods 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000011010 flushing procedure Methods 0.000 claims description 6
- 239000003129 oil well Substances 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000000712 assembly Effects 0.000 abstract 6
- 238000000429 assembly Methods 0.000 abstract 6
- 230000000694 effects Effects 0.000 description 8
- 230000011218 segmentation Effects 0.000 description 5
- 230000000149 penetrating effect Effects 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
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- 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
- E21B47/00—Survey of boreholes or wells
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- 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
- E21B33/12—Packers; Plugs
- E21B33/122—Multiple string packers
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/08—Screens or liners
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/116—Gun or shaped-charge perforators
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/116—Gun or shaped-charge perforators
- E21B43/1185—Ignition systems
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- 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)
- Geophysics (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention provides a layering continuous well testing system and a use method thereof. The layering continuous well testing systems which are placed in a casing at interval comprise drainage test assemblies, straddle assemblies, and perforation assemblies connected from top to bottom. The cut-through cavity of the drainage test assemblies is communicated with the cut-through cavity of the straddle assemblies, to form a production channel. The straddle assemblies comprise a pressure transmitting joint, an upper packer, an upper pilot-controlled sieve tube, a lower packer, and a lower pilot-controlled sieve tube. In the production channel, pressure transmitting pipes which extend from the pressure transmitting joint and are communicated with an ignition head are arranged at interval. The pressure transmitting hole on the pressure transmitting joint is communicated with the upper port of the pressure transmitting pipe, to form a pressurization channel. The upper pilot-controlled sieve tube is provided with a first diversion channel which is separated from the production channel. The pressurization channel is injected with fluid, so the first diversion channel is communicated with the production channel. The lower pilot-controlled sieve tube is provided with a second diversion channel which can be connected with the production channel. Fluid is injected to make the second diversion channel separated from the production channel. The system can perform well testing on an upper layer and a lower layer.
Description
Technical field
The present invention relates to the technical field of petroleum exploration and development, particularly a kind ofly can be used for the system of the continuous formation testing of layering and the using method of this system.
Background technology
In Pressure Curve in Oil Testing Well, if there is multiple interval of interest to need to obtain oil test data respectively, just need formation testing by layer.Traditional formation testing by layer mode, lower bridging plug or cementing plug is adopted to shut trying layer, then successively on return top interval and carry out formation testing, its shortcoming repeatedly plays lower tubular column, lower bridging plug or cementing plug, long construction period, speed slowly, costly, easily pollute oil-gas Layer, further, formation testing complete, go into operation time also need brill to fall cement plug.
Existing a kind of formation testing tubing string, can packing be positioned at top penetrate layers apart, then to penetrate below layers apart treating examination layer carry out perforation, test, discharge opeing, transformation operation.But only can try layer for treating below lower packet to construct, test jobs can not be carried out to the layers apart of penetrating between upper packer and lower packet.
Summary of the invention
For solving above-mentioned technical problem, the present invention proposes the system of the continuous formation testing of a kind of layering and the using method of this system, lower one-trip string across every be positioned at top penetrate layers apart, then carry out formation testing to two-layer up and down respectively, improve formation testing speed, decrease cost.
The present invention proposes the continuous formation testing system of a kind of layering, interval is positioned in sleeve pipe and forms oil jacket annular space, the continuous formation testing system of described layering comprise connect successively from top to bottom discharge opeing test suite, across every assembly and perforation assembly, the through chamber arranged in described discharge opeing test suite is communicated with to be formed with the described through chamber across arranging in assembly and produces passage;
Described across comprising the pressure-transmitting joint, upper packer, upper hydraulic control screen casing, lower packet and the lower hydraulic control screen casing that set gradually from top to bottom every assembly; In described production passage, interval arranges pressure tube, described perforation assembly comprises igniter head and perforating gun, described pressure tube extends from described pressure-transmitting joint and is communicated to described igniter head, the sidewall of described pressure-transmitting joint is disposed radially through pressure transmission hole, and the upper port that described pressure transmission hole is communicated to described pressure tube is formed and the mutual disconnected pressurization passageway of described production passage;
Described upper hydraulic control screen casing is radially arranged can with the first flow-guiding channel of described production passageway break, the external fluid injected by described pressurization passageway is transported to described upper hydraulic control screen casing via the first pipeline, and described fluid drives described first flow-guiding channel and described production channel conductive; Described lower hydraulic control screen casing is radially arranged can with the second flow-guiding channel of described production channel conductive, the described fluid injected by described pressurization passageway is transported to described lower hydraulic control screen casing via the second pipeline, and described fluid drives described second flow-guiding channel and described production passageway break.
Further, described upper hydraulic control screen casing comprises normally close valve, and described normally close valve comprises the first housing of hollow and to be arranged in described first housing and the first sliding sleeve coordinated with its slipper seal, described first housing is radially arranged the first outer pod apertures; By described first sliding sleeve described first outer pod apertures and described production passageway break are blocked to described first outer pod apertures, slide over moving axially in described first housing by described first and expose described first outer pod apertures, by described first outer pod apertures and described production channel conductive;
Described lower hydraulic control screen casing comprises normally open valve, and described normally open valve comprises the second housing of hollow and to be arranged in described second housing and the second sliding sleeve coordinated with its slipper seal, described second housing is radially arranged the second outer pod apertures; Described second outer pod apertures is exposed by described second outer pod apertures and described production channel conductive by described second sliding sleeve, described second sliding sleeve that moves axially slided in described second housing by described second blocks described second outer pod apertures, by described second outer pod apertures and described production passageway break.
Further, described first sliding sleeve is radially arranged the first Inner guide hole, staggered by the position of described first Inner guide hole and described first outer pod apertures, close described first flow-guiding channel; By described first sliding sleeve to move axially described first Inner guide hole corresponding with the position of described first outer pod apertures, be communicated with and form described first flow-guiding channel;
Described second sliding sleeve is radially arranged the second Inner guide hole, corresponding with the position of described second outer pod apertures by described second Inner guide hole, be communicated with and form described second flow-guiding channel; By described second sliding sleeve move axially described second Inner guide hole and described second outer pod apertures staggers completely, close described second flow-guiding channel.
Further, described first housing comprise set gradually from top to bottom and end winding support connect the first top connection and the first lower contact; Described first top connection is fixedly connected with the first sliding sleeve by shear pin, and described first outer pod apertures is arranged in described first top connection;
The outer wall of described first sliding sleeve arranges first shaft shoulder, and the lower end abutment of described first top connection is on described first shaft shoulder; Between the inwall of described first lower contact and the outer wall of described first sliding sleeve, gap is set and forms the first annular space sealed, the upper end of described first annular space extends to described first shaft shoulder place, described first annular space is communicated with described pressurization passageway by described first pipeline, by injecting described first annular space and described in the described fluid forces acting on described first shaft shoulder, the first sliding sleeve moves down;
Described second housing comprise set gradually from top to bottom and end winding support connect the second top connection and the second lower contact; Described second top connection is fixedly connected with the second sliding sleeve by shear pin, and described second outer pod apertures is arranged in described second top connection;
The outer wall of described second sliding sleeve arranges second shaft shoulder, and the lower end abutment of described second top connection is on described second shaft shoulder; Between the inwall of described second lower contact and the outer wall of described second sliding sleeve, gap is set and forms the second annular space sealed, the upper end of described second annular space extends to described second shaft shoulder place, described second annular space is communicated with described pressurization passageway by described second pipeline, by injecting described second annular space and described in the described fluid forces acting on described second shaft shoulder, the second sliding sleeve moves down.
As the enforceable mode of one, described lower hydraulic control screen casing also comprises auxiliary normally close valve, described auxiliary normally close valve is radially arranged can with the 3rd flow-guiding channel of described production passageway break, the described fluid injected by described pressurization passageway is transported to described auxiliary normally close valve via the 3rd pipeline, and described fluid drives described 3rd flow-guiding channel and described production channel conductive.
Further, described auxiliary normally close valve comprises the 3rd housing of hollow and to be arranged in described 3rd housing and the 3rd sliding sleeve coordinated with its slipper seal, described 3rd housing radially arranges the 3rd outer pod apertures, described 3rd sliding sleeve radially arranges the 3rd Inner guide hole; By described 3rd sliding sleeve blocking described 3rd outer pod apertures, close described 3rd flow-guiding channel; By the described 3rd slide in described 3rd housing to move axially described 3rd Inner guide hole corresponding with the position of described 3rd outer pod apertures, be communicated with and form described 3rd flow-guiding channel.
Further, described 3rd housing comprise set gradually from top to bottom and end winding support connect the 3rd top connection and the 3rd lower contact; Described 3rd top connection is fixedly connected with the 3rd sliding sleeve by shear pin, and described 3rd outer pod apertures is arranged in described 3rd top connection;
The outer wall of described 3rd sliding sleeve arranges the 3rd shaft shoulder, and the lower end abutment of described 3rd top connection is on described 3rd shaft shoulder; Between the inwall of described 3rd lower contact and the outer wall of described 3rd sliding sleeve, gap is set and forms the 3rd annular space sealed, the upper end of described 3rd annular space extends to described 3rd shaft shoulder place, described 3rd annular space is communicated with described pressurization passageway by described 3rd pipeline, by injecting described 3rd annular space and described in the described fluid forces acting on described 3rd shaft shoulder, the 3rd sliding sleeve moves down.
As the enforceable mode of one, described auxiliary normally close valve is arranged on above or below described normally open valve, and described 3rd pipeline is communicated to described second pipeline.
As the enforceable mode of one, described upper packer and described at least one upper strata pressure gauge is set between hydraulic control screen casing, in the below of described lower hydraulic control screen casing, at least one lower floor's pressure gauge is set.
Further, described discharge opeing test suite comprises the pumping equipment, circulating valve and the testing valve assembly that connect successively from top to bottom.
Further, described igniter head is connected to the top of described perforating gun, and described igniter head is for igniting described perforating gun, and the lower end of described pressure tube is communicated to described igniter head.
As the enforceable mode of one, on described, between hydraulic control screen casing and described lower packet, safety joint is set.
As the enforceable mode of one, the outer wall of described first sliding sleeve arranges the spacing shaft shoulder of the first sliding sleeve, the inwall of described first lower contact arranges the spacing shaft shoulder of the first lower contact in the below of described first annular space; On the spacing shaft shoulder of described first sliding sleeve or on the spacing shaft shoulder of described first lower contact, arrange the first beam, the spacing shaft shoulder of the first sliding sleeve described in when described first sliding sleeve moves down is leant by described first beam and the spacing shaft shoulder of described first lower contact;
The outer wall of described second sliding sleeve arranges the spacing shaft shoulder of the second sliding sleeve, the inwall of described second lower contact arranges the spacing shaft shoulder of the second lower contact in the below of described second annular space; On the spacing shaft shoulder of described second sliding sleeve or on the spacing shaft shoulder of described second lower contact, arrange the second beam, the spacing shaft shoulder of the second sliding sleeve described in when described second sliding sleeve moves down is leant by described second beam and the spacing shaft shoulder of described second lower contact.
The present invention also proposes the using method of the continuous formation testing system of a kind of layering, adopts the continuous formation testing system of described layering, comprises the steps:
S10, connects to form G.I.H after tubing string by the upper end of continuous for described layering formation testing system and oil well pipe; Continuous for described layering formation testing system interval is positioned in sleeve pipe, school is dark, adjust described tubing string, upper packer is positioned at wait to try the top of layer, lower packet be positioned at described on wait to try the below of layer, to wait to try layer under perforating gun is aimed at; Set described upper packer and described lower packet;
S20, enters fluid by oil jacket annular injection, and the pressure values setting described fluid is P1, the second flow-guiding channel and production channel conductive, under described, treat that examination layer carries out perforation; To treating that examination layer is tested under described, acidifying, discharge opeing, complete described under wait to try the formation testing operation of layer;
S30, injects described fluid by oil jacket annular space, and the pressure values setting described fluid is P2, described P2 is greater than described P1, described fluid injects lower hydraulic control screen casing through pressurization passageway and the second pipeline successively, described second flow-guiding channel and described production passageway break, complete described under treat the closing well of examination layer;
S40, described fluid is injected by oil jacket annular space, the pressure values setting described fluid is P3, described P3 is greater than described P2, described fluid injects upper hydraulic control screen casing through pressurization passageway and the first pipeline successively, described first flow-guiding channel and described production channel conductive, to treating that examination layer is tested on described, acidifying, discharge opeing, complete described on wait to try the formation testing operation of layer.
Further, after described S40, also comprise S45, described S45 is included in described lower hydraulic control screen casing and arranges auxiliary normally close valve, described auxiliary normally close valve is radially arranged can with the 3rd flow-guiding channel of described production passageway break;
Described fluid is injected by oil jacket annular space, the pressure values setting described fluid is P4, described P4 is greater than described P3, the described fluid injected by described pressurization passageway is transported to described auxiliary normally close valve via the 3rd pipeline, described fluid drives described 3rd flow-guiding channel and described production channel conductive, prepares for tripping out described tubing string.
Further, also S50 is comprised after described S45, described S50 is included in discharge opeing test suite and arranges circulating valve, open described circulating valve, carry out well-flushing, kill job successively, then put forward the continuous formation testing system of described layering on, upper packer described in deblocking and described lower packet, trip out the continuous formation testing system of described layering.
Further, between described S30 and described S40, also comprise S35, described S35 comprises according to construction requirement, opens described circulating valve, carries out well-flushing successively, makes negative pressure operation, then close described circulating valve.
The present invention is compared to the beneficial effect of prior art: the system of the continuous formation testing of layering of the present invention, and upper hydraulic control screen casing arranges the first flow-guiding channel, and lower hydraulic control screen casing arranges the second flow-guiding channel; Opening or closing by respective channel, can carry out formation testing by layer to two-layer up and down, without the need to operations such as lower bridging plug sealing and brill plugs, saves formation testing cycle and workover rig activity duration, achieves formation testing and put forward effect, saved formation testing cost.Can realize joining with the reservoir reconstruction operation such as Large Scale Acidizing do and under return formation testing, can not only treat that examination layer carries out perforation, test, reservoir reconstruction operation under below lower packet, can also the well section between upper and lower two packers be constructed.Card is buried in arranging when can avoid reservoir reconstruction of safety joint, makes construction safety reliable.
The using method of the system of the continuous formation testing of layering, the first flow-guiding channel during original state, upper hydraulic control screen casing arranged is gone into the well with closed condition, and the second flow-guiding channel that lower hydraulic control screen casing is arranged is gone into the well with open mode.Lower one-trip string just can convenient and reliablely extend across treats examination layer (penetrating layers apart) on contiguous well head, adopt the mode of applied pressure by annulus igniting, to away from after under well head, until examination, layer carries out the operations such as perforation, test, discharge opeing, transformation, close the second flow-guiding channel and complete down the formation testing waiting to try layer, wait under closing to try layer, open the first flow-guiding channel, to contiguous well head being treated examination layer is tested, transform, the operation such as discharge opeing.
Hydraulic control screen casing and lower hydraulic control screen casing are set and opening or closing by respective flow-guiding channel, oil jacket annular space can be controlled cut off with the connected sum producing passage, treat examination layer final shut-in under carrying out during, the test trying layer is waited on can carrying out, the final shut-in waiting to try layer is made down not need to take separately the working rig time, optimize the activity duration, achieve formation testing and put forward effect.Lower hydraulic control screen casing normally open valve close after, also can open auxiliary normally close valve, by under treat examination layer again with production channel connection, prepare for tripping out tubing string, when avoiding tripping out tubing string occur swabbing.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the system of the continuous formation testing of layering of the present invention;
Fig. 2 is the structural representation of the upper hydraulic control screen casing of the system of the continuous formation testing of layering of the present invention;
Fig. 3 is the structural representation of the lower hydraulic control screen casing of the system of the continuous formation testing of layering of the present invention.
Reference numeral:
101-discharge opeing test suite; 102-is across every assembly; 103-perforation assembly; 210-oil jacket annular space;
220-produces passage; 230-pressurization passageway; Wait under 310-to try layer; 320-treats examination layer (penetrating layers apart);
1-oil well pipe; 2-pumping equipment; The dark pipe nipple in 3-school; 4-circulating valve; 5-testing valve assembly;
6-pressure-transmitting joint; 7-upper packer; 8-pressure tube; 81-pressure tube first segmentation; 82-pressure tube second segmentation;
The upper manometer of 9-; 10-spacer tube; The upper hydraulic control screen casing of 11-; The upper transit joint of 112-;
12-safety joint; 13-lower packet; Transit joint under 132-; Hydraulic control screen casing under 14-;
15-downforce meter holder cylinder; 16-adjustable pipe; 17-damper; 18-igniter head; 19-perforating gun; 20-gun breech;
30-normally close valve; 31-first top connection; The outer pod apertures of 311-first; 32-seal; 33-first sliding sleeve;
331-first Inner guide hole; 333-first shaft shoulder; The spacing shaft shoulder of 334-first sliding sleeve; 335-first beam;
36-shear pin; The upper pressure guiding joint of 38-; First port of the upper hydraulic control screen casing of 381-;
Second port of the upper hydraulic control screen casing of 382-; 39-first lower contact; 390-first annular space;
The spacing shaft shoulder of 394-first lower contact; 70-first pipeline; 80-second pipeline; 90-the 3rd pipeline;
40-normally open valve; 41-second top connection; The outer pod apertures of 411-second; 43-second sliding sleeve;
431-second Inner guide hole; 433-second shaft shoulder; The spacing shaft shoulder of 434-second sliding sleeve; 435-second beam;
Pressure guiding joint under 48-; First port of hydraulic control screen casing under 481-; Second port of hydraulic control screen casing under 482-;
49-second lower contact; 490-second annular space; The spacing shaft shoulder of 494-second lower contact;
50-assists normally close valve; 51-the 3rd top connection; The outer pod apertures of 511-the 3rd; 53-the 3rd sliding sleeve;
531-the 3rd Inner guide hole; 533-the 3rd shaft shoulder; The spacing shaft shoulder of 534-the 3rd sliding sleeve; 535-the 3rd beam;
3rd port of hydraulic control screen casing under 582-; 59-the 3rd lower contact; 590-the 3rd annular space;
The spacing shaft shoulder of 594-the 3rd lower contact.
Detailed description of the invention
Below in conjunction with accompanying drawing, to above-mentioned being clearly and completely described with other technical characteristic and advantage of the present invention, obviously, described embodiment is only section Example of the present invention, instead of whole embodiment.
Shown in Fig. 1 and Fig. 2, the continuous formation testing system of a kind of layering of the present invention, interval is positioned in sleeve pipe, oil jacket annular space 210 is formed between the continuous formation testing system of layering and sleeve pipe, the continuous formation testing system of layering comprise connect successively from top to bottom discharge opeing test suite 101, across every assembly 102 and perforation assembly 103, the through chamber arranged in discharge opeing test suite 101 produces passage 220 with being communicated with to be formed across the through chamber arranged in assembly 102.
Across comprising the pressure-transmitting joint 6, upper packer 7, upper hydraulic control screen casing 11, lower packet 13 and the lower hydraulic control screen casing 14 that set gradually from top to bottom every assembly 102; In production passage 220, interval arranges pressure tube 8, perforation assembly 103 comprises igniter head 18 and perforating gun 19, pressure tube 8 extends from pressure-transmitting joint 6 and is communicated to igniter head 18, the sidewall of pressure-transmitting joint 6 is disposed radially through pressure transmission hole, and pressure transmission hole is communicated with the upper port of pressure tube 8 and is formed and produce passage 220 mutual disconnected pressurization passageway 230.Upper hydraulic control screen casing 11 is radially arranged first flow-guiding channel that can cut off with production passage 220, the external fluid injected by pressurization passageway 230 is transported to upper hydraulic control screen casing 11 via the first pipeline 70, and fluid drives the first flow-guiding channel and produces passage 220 conducting; Lower hydraulic control screen casing 14 is radially arranged can with the second flow-guiding channel producing passage 220 conducting, and the fluid injected by pressurization passageway 230 is transported to lower hydraulic control screen casing 14 via the second pipeline 80, and fluid drives the second flow-guiding channel to cut off with production passage 220.
The present invention arranges the first flow-guiding channel on upper hydraulic control screen casing 11, and lower hydraulic control screen casing 14 arranges the second flow-guiding channel; Opening or closing by respective channel, can carry out formation testing by layer to two-layer up and down, without the need to operations such as lower bridging plug sealing and brill plugs, saves formation testing cycle and workover rig activity duration, achieves formation testing and put forward effect, saved formation testing cost.Can realize joining with the reservoir reconstruction operation such as Large Scale Acidizing do and under return formation testing, can not only treat that examination layer 310 carries out perforation, test, reservoir reconstruction operation under below lower packet 13, can also the well section between upper and lower two packers be constructed.
Shown in Fig. 2 and Fig. 3, in the present embodiment, pressure tube 8 comprises setting from top to bottom and pressure tube first segmentation 81 be communicated with successively and pressure tube second segmentation 82, can arrange more pressure tube segmentation, each part can be sent to suitable position according to the well depth of Pressure Curve in Oil Testing Well.Across also comprising the spacer tube 10 be connected between upper packer 7 and upper hydraulic control screen casing 11 every assembly.
Further, upper hydraulic control screen casing 11 comprises normally close valve 30, and normally close valve 30 comprises the first housing of hollow and to be arranged in the first housing and the first sliding sleeve 33, first housing coordinated with its slipper seal radially arranges the first outer pod apertures 311; Cut off with production passage 220 by the first outer pod apertures 311 of blocking of the first sliding sleeve 33 to the first outer pod apertures 311, can not wait that trying layer 320 carries out construction operation between upper packer 7 and lower packet 13.The first outer pod apertures 311 is exposed by the first sliding sleeve 33 moving axially in the first housing, by the first outer pod apertures 311 and the conducting of production passage 220, oil jacket annular space 210 is communicated with production passage 220 by the first outer pod apertures 311, thus can wait that trying layer 320 carries out construction operation between upper packer 7 and lower packet 13.
Lower hydraulic control screen casing 14 comprises normally open valve 40, and normally open valve 40 comprises the second housing of hollow and to be arranged in the second housing and the second sliding sleeve 43, second housing coordinated with its slipper seal radially arranges the second outer pod apertures 411; The second outer pod apertures 411 is exposed by the second outer pod apertures 411 and the conducting of production passage 220 by the second sliding sleeve 43, oil jacket annular space 210 is communicated with production passage 220 by the second outer pod apertures 411, thus can treat that examination layer 310 carries out construction operation under below lower packet 13.Block the second outer pod apertures 411 by second sliding sleeve 43 that moves axially of the second sliding sleeve 43 in the second housing, the second outer pod apertures 411 is cut off with production passage 220, no longer under below lower packet 13, treat that examination layer 310 carries out construction operation.
In the present embodiment, the upper transit joint 112 being used for being fixedly connected with spacer tube 10 is set in the upper end of upper hydraulic control screen casing 11, pressure guiding joint 38 is set in the lower end of upper hydraulic control screen casing 11.Upper pressure guiding joint 38 arranges the first port 381 of the upper hydraulic control screen casing be communicated with pressurization passageway 230, the two ends that the normally close valve 30 of upper hydraulic control screen casing 11 arranges the second port 382, first pipeline 70 of hydraulic control screen casing are connected with the first port 381 of upper hydraulic control screen casing and the second port 382 of upper hydraulic control screen casing respectively.The lower transit joint 132 being used for being fixedly connected with safety joint 12 is set in the upper end of lower packet 13, lower pressure guiding joint 48 is set in the lower end of lower hydraulic control screen casing 14.Lower pressure guiding joint 48 arranges the first port 481 of the lower hydraulic control screen casing be communicated with pressurization passageway 230, the two ends that the normally open valve 40 of lower hydraulic control screen casing 14 arranges the second port 482, second pipeline 80 of lower hydraulic control screen casing are connected with the first port 481 of lower hydraulic control screen casing and the second port 482 of lower hydraulic control screen casing respectively.
Further, the first sliding sleeve 33 is radially arranged the first Inner guide hole 331, staggered by the position of the first Inner guide hole 331 and the first outer pod apertures 311, close the first flow-guiding channel; By the first sliding sleeve 33 to move axially the first Inner guide hole 331 corresponding with the position of the first outer pod apertures 311, be communicated with formation first flow-guiding channel.Original state when normally close valve 30 is gone into the well, for opening, makes normally close valve 30 close by external pressurized.Second sliding sleeve 43 is radially arranged the second Inner guide hole 431, corresponding with the position of the second outer pod apertures 411 by the second Inner guide hole 431, be communicated with formation second flow-guiding channel; By the second sliding sleeve 43 move axially the second Inner guide hole 431 and the second outer pod apertures 411 staggers completely, close the second flow-guiding channel.Original state when normally open valve 40 is gone into the well, for closing, makes normally open valve 40 open by external pressurized.
Further, the first housing comprise set gradually from top to bottom and end winding support connect the first top connection 31 and the first lower contact 39; First top connection 31 is fixedly connected with the first sliding sleeve 33 by shear pin 36, and the first outer pod apertures 311 is arranged in the first top connection 31.The outer wall of the first sliding sleeve 33 is arranged the lower end abutment of the first shaft shoulder 333, first top connection 31 on first shaft shoulder 333; Gap is set between the inwall of the first lower contact 39 and the outer wall of the first sliding sleeve 33 and forms the first annular space 390 sealed, the upper end of the first annular space 390 extends to the first shaft shoulder 333 place, first annular space 390 is communicated with pressurization passageway 230 by the first pipeline 70, by injecting the first annular space 390 and fluid forces first sliding sleeve 33 acting on first shaft shoulder 333 moves down.
Second housing comprise set gradually from top to bottom and end winding support connect the second top connection 41 and the second lower contact 49; Second top connection 41 is fixedly connected with the second sliding sleeve 43 by shear pin 36, and the second outer pod apertures 411 is arranged in the second top connection 41.The outer wall of the second sliding sleeve 43 is arranged the lower end abutment of the second shaft shoulder 433, second top connection 41 on second shaft shoulder 433; Gap is set between the inwall of the second lower contact 49 and the outer wall of the second sliding sleeve 43 and forms the second annular space 490 sealed, the upper end of the second annular space 490 extends to the second shaft shoulder 433 place, second annular space 490 is communicated with pressurization passageway 230 by the second pipeline 80, by injecting the second annular space 490 and fluid forces second sliding sleeve 43 acting on second shaft shoulder 433 moves down.
As the enforceable mode of one, lower hydraulic control screen casing 14 also comprises auxiliary normally close valve 50, auxiliary normally close valve 50 is radially arranged the 3rd flow-guiding channel that can cut off with production passage 220, the fluid injected by pressurization passageway 230 is transported to auxiliary normally close valve 50 via the 3rd pipeline 90, and fluid drives the 3rd flow-guiding channel and produces passage 220 conducting.By the setting of auxiliary normally close valve 50, lower hydraulic control screen casing 14 normally open valve 40 close after, opening also by auxiliary normally close valve 50, by under treat examination layer 310 again with production passage 220 be communicated with.
Further, auxiliary normally close valve 50 comprises the 3rd housing of hollow and to be arranged in the 3rd housing and the 3rd sliding sleeve 53 coordinated with its slipper seal, 3rd housing is radially arranged on the 3rd outer pod apertures the 511, three sliding sleeve 53 and the 3rd Inner guide hole 531 is radially set; By the 3rd sliding sleeve 53 blocking the 3rd outer pod apertures 511, close the 3rd flow-guiding channel; By the 3rd sliding sleeve 53 in the 3rd housing to move axially the 3rd Inner guide hole 531 corresponding with the position of the 3rd outer pod apertures 511, be communicated with formation the 3rd flow-guiding channel.
Further, the 3rd housing comprise set gradually from top to bottom and end winding support connect the 3rd top connection 51 and the 3rd lower contact 59; 3rd top connection 51 is fixedly connected with the 3rd sliding sleeve 53 by shear pin 36, and the 3rd outer pod apertures 511 is arranged in the 3rd top connection 51.The outer wall of the 3rd sliding sleeve 53 is arranged the lower end abutment of the 3rd shaft shoulder the 533, three top connection 51 on the 3rd shaft shoulder 533; Gap is set between the inwall of the 3rd lower contact 59 and the outer wall of the 3rd sliding sleeve 53 and forms the 3rd annular space 590 sealed, the upper end of the 3rd annular space 590 extends to the 3rd shaft shoulder 533 place, 3rd annular space 590 is communicated with pressurization passageway 230 by the 3rd pipeline 90, by injecting the 3rd annular space 590 and fluid forces the 3rd sliding sleeve 53 acting on the 3rd shaft shoulder 533 moves down.
As the enforceable mode of one, auxiliary normally close valve 50 is arranged on above or below normally open valve 40, and the 3rd pipeline 90 is communicated to the second pipeline 80.In the present embodiment, auxiliary normally close valve 50 is arranged on the top of normally open valve 40, one end that auxiliary normally close valve 50 arranges the 3rd port the 582, three pipeline 90 of lower hydraulic control screen casing is connected to the second pipeline 80, and its other end is connected to the 3rd port 582 of lower hydraulic control screen casing.
More preferably, the inwall of the first top connection 31 arranges the step that can match with the upper surface of the first sliding sleeve 33, the inwall of the first lower contact 39 arranges the step that can match with the lower surface of the first sliding sleeve 33, for limiting the movement travel of the first sliding sleeve 33, avoid the first sliding sleeve 33 displacement under fluid pressure action excessive.Similarly, similar structure can be set in the second top connection 41 and the second lower contact 49, also similar structure can be set in the 3rd top connection 51 and the 3rd lower contact 59, be respectively used to the movement travel of restriction second sliding sleeve 43 and the 3rd sliding sleeve 53, avoid the second sliding sleeve 43 and the 3rd sliding sleeve 53 displacement under fluid pressure action excessive.First lower contact 39 is fixed on outside the first top connection 31 by thread set, second top connection 41 and the second lower contact 49, the 3rd top connection 51 are with the 3rd lower contact 59 also by being threaded, and the convenient installation of such structure, dismounting or replacing are placed in the sliding sleeve of enclosure interior.
As the enforceable mode of one, at least one upper strata pressure gauge is set between upper packer 7 and upper hydraulic control screen casing 11, at least one lower floor's pressure gauge is set in the below of lower hydraulic control screen casing 14.More preferably, the manometric quantity of upper strata pressure gauge and lower floor is respectively two, and after ensureing a pressure gauge damage wherein or inefficacy, another pressure gauge can continue the data measuring place layer.In the present embodiment, by the upper manometer 9 be arranged on below upper packer 7, manometric for upper strata position is fixed, by the downforce meter holder cylinder 15 be arranged on below lower hydraulic control screen casing 14, manometric for lower floor position is fixed.
Further, discharge opeing test suite 101 comprises the pumping equipment 2, circulating valve 4 and the testing valve assembly 5 that connect successively from top to bottom.Pumping equipment 2 can be one or more combinations in the draining modes such as suction, hydraulic pump, screw pump, gaslift, oil well pump, expands discharge opeing accommodation, improves discharge opeing efficiency and success rate.Testing valve assembly 5 can control the flow direction of fluid, avoids fluid to enter in oil well pipe 1, and can avoid the fluid in pressurization passageway 230 returns, and in the present embodiment, between pumping equipment 2 and circulating valve 4, also arranges the dark pipe nipple 3 in school.
Further, igniter head 18 is connected to the top of perforating gun 19, and the lower end of pressure tube 8 is communicated to igniter head 18, and annular pressure is delivered on igniter head 18 by pressure tube 8, thus ignites perforating gun 19.In the present embodiment, between downforce meter holder cylinder 15 and igniter head 18, set gradually adjustable pipe 16 and damper 17 from top to bottom, gun breech 20 is set in the below of perforating gun 19.Damper 17 contributes to reducing perforation instantaneous pressure shock wave, and reduces the risk causing tubing string and testing meter and instrument to lose efficacy because trembling.
As the enforceable mode of one, safety joint 12 is set between upper hydraulic control screen casing 11 and lower packet 13.Safety joint 12 can avoid the continuous formation testing system of layering to bury card when reservoir reconstruction, makes construction safety reliable.
As the enforceable mode of one, the outer wall of the first sliding sleeve 33 arranges the spacing shaft shoulder 334 of the first sliding sleeve, the spacing shaft shoulder 394 of the first lower contact is set on the inwall of the first lower contact 39 and in the below of the first annular space 390; On the spacing shaft shoulder of the first sliding sleeve 334 or on the spacing shaft shoulder 394 of the first lower contact, arrange the first beam 335, when the first sliding sleeve 33 moves down, the spacing shaft shoulder of the first sliding sleeve 334 is leant by the first beam 335 and the spacing shaft shoulder 394 of the first lower contact.
The outer wall of the second sliding sleeve 43 arranges the spacing shaft shoulder 434 of the second sliding sleeve, the spacing shaft shoulder 494 of the second lower contact is set on the inwall of the second lower contact 49 and in the below of the second annular space 490; On the spacing shaft shoulder of the second sliding sleeve 434 or on the spacing shaft shoulder 494 of the second lower contact, arrange the second beam 435, when the second sliding sleeve 43 moves down, the spacing shaft shoulder of the second sliding sleeve 434 is leant by the second beam 435 and the spacing shaft shoulder 494 of the second lower contact.
In the present embodiment, as shown in Figure 3, the outer wall of the 3rd sliding sleeve 43 arranges the spacing shaft shoulder 534 of the 3rd sliding sleeve, the spacing shaft shoulder 594 of the 3rd lower contact is set on the inwall of the 3rd time sectional drawing 59 and in the below of the 3rd annular space 590; On the spacing shaft shoulder of the 3rd sliding sleeve 534 or on the spacing shaft shoulder 594 of the 3rd lower contact, arrange the 3rd beam 535, when the 3rd sliding sleeve 53 moves down, the spacing shaft shoulder of the 3rd sliding sleeve 534 is leant by the 3rd beam 535 and the spacing shaft shoulder 594 of the 3rd lower contact.
Between the first sliding sleeve 33 and the first top connection 31 and respectively above and below the first Inner guide hole 331, between the first top connection 31 and the first lower contact 39, between the first sliding sleeve 33 and the first lower contact 39 and above the spacing shaft shoulder 334 of the first sliding sleeve, between the first sliding sleeve 33 and the first lower contact 39, in the below of the spacing shaft shoulder 394 of the first lower contact, all seal 32 can be set, fluid is avoided to enter into gap between the first top connection 31 and the first lower contact 39, first annular space 390, the spacing shaft shoulder of first sliding sleeve 334 and the spacing shaft shoulder 394 of the first lower contact not against time cavity among, fluid enters the functional performance that may affect normally close valve 30.Similarly, also seal 32 can be set the similar position in normally open valve 40 or auxiliary normally close valve 50, no longer describe in detail at this.
The present invention also proposes the using method of the continuous formation testing system of a kind of layering, adopts the continuous formation testing system of above-mentioned layering, comprises the steps:
S10, connects to form G.I.H after tubing string by the upper end of continuous for layering formation testing system and oil well pipe 1; Continuous for layering formation testing system interval is positioned in sleeve pipe, school is dark, adjustment tubing string, upper packer 7 is positioned at wait to try the top of layer 320, lower packet 13 is positioned at the below of waiting to try layer 320, waits to try layer 310 under perforating gun 19 is aimed at; Set upper packer 7 and lower packet 13; More preferably, perforating gun waits under aiming at that the error trying layer 310 is no more than 0.2 meter;
S20, injects fluid by oil jacket annular space 210, and the pressure values of setting fluid is P1, the second flow-guiding channel with produce passage 220 conducting, under treat that examination layer 310 carries out perforation; To under treat that examination layer 310 is tested, acidifying, discharge opeing, complete down and wait to try the formation testing operation of layer 310;
S30, injects fluid by oil jacket annular space 210, and the pressure values of setting fluid is P2, P2 is greater than P1, fluid injects lower hydraulic control screen casing 14, the second flow-guiding channel through pressurization passageway 230 and the second pipeline 80 successively and cuts off with production passage 220, completes down the closing well waiting to try layer 310;
S40, fluid is injected by oil jacket annular space 210, the pressure values of setting fluid is P3, P3 is greater than P2, fluid injects upper hydraulic control screen casing 11 through pressurization passageway 230 and the first pipeline 70 successively, first flow-guiding channel with produce passage 220 conducting, on treat that examination layer 320 is tested, acidifying, discharge opeing, complete the formation testing operation waiting to try layer 320.
The using method of the system of the continuous formation testing of layering, the first flow-guiding channel during original state, upper hydraulic control screen casing 11 arranged is gone into the well with closed condition, and the second flow-guiding channel that lower hydraulic control screen casing 14 is arranged is gone into the well with open mode.Lower one-trip string just can convenient and reliablely extend across treats examination layer 320 (penetrating layers apart) on contiguous well head, adopt the mode of applied pressure by annulus igniting, to away from after under well head, until examination, layer 310 carries out the operations such as perforation, test, discharge opeing, transformation, close the second flow-guiding channel and complete down the formation testing waiting to try layer 310, wait under closing to try layer 310, open the first flow-guiding channel, to contiguous well head being treated examination layer 320 is tested, transform, the operation such as discharge opeing.
Hydraulic control screen casing 11 and lower hydraulic control screen casing 14 are set and opening or closing by respective flow-guiding channel, oil jacket annular space can be controlled cut off with the connected sum producing passage, treat examination layer 310 final shut-in under carrying out during, the test trying layer 320 is waited on can carrying out, the final shut-in waiting to try layer 310 is made down not need to take separately the working rig time, optimize the activity duration, achieve formation testing and put forward effect.
Further, after S40, also comprise S45, S45 is included in lower hydraulic control screen casing 14 and arranges auxiliary normally close valve 50, and auxiliary normally close valve 50 radially arranges the 3rd flow-guiding channel that can cut off with production passage 220.Fluid is injected by oil jacket annular space 210, the pressure values of setting fluid is P4, P4 is greater than P3, the fluid injected by pressurization passageway 230 is transported to auxiliary normally close valve 50 via the 3rd pipeline 90, fluid drives the 3rd flow-guiding channel and produces passage 220 conducting, preparing for tripping out tubing string, avoiding, during lift pipe string, swabbing occurs.
Further, after S45, also comprise S50, S50 is included in discharge opeing test suite 101 and arranges circulating valve 4, open circulating valve 4, carry out well-flushing, kill job successively, then, put forward the continuous formation testing system of layering, deblocking upper packer 7 and lower packet 13, trip out the continuous formation testing system of layering.
Further, between S30 and S40, also comprise S35, S35 is included according to construction requirement, opens circulating valve 4, carries out well-flushing successively, makes negative pressure operation, then closes circulating valve 4.
Above-described specific embodiment, has carried out further detailed description to object of the present invention, technical scheme and beneficial effect, should be appreciated that and the foregoing is only specific embodiments of the invention, the protection domain be not intended to limit the present invention.Particularly point out, to those skilled in the art, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (17)
1. the continuous formation testing system of layering, it is characterized in that, the continuous formation testing system interval of described layering is positioned in sleeve pipe and forms oil jacket annular space, the continuous formation testing system of described layering comprise connect successively from top to bottom discharge opeing test suite, across every assembly and perforation assembly, the through chamber arranged in described discharge opeing test suite is communicated with to be formed with the described through chamber across arranging in assembly and produces passage;
Described across comprising the pressure-transmitting joint, upper packer, upper hydraulic control screen casing, lower packet and the lower hydraulic control screen casing that set gradually from top to bottom every assembly; In described production passage, interval arranges pressure tube, described perforation assembly comprises igniter head and perforating gun, described pressure tube extends from described pressure-transmitting joint and is communicated to described igniter head, the sidewall of described pressure-transmitting joint is disposed radially through pressure transmission hole, described pressure transmission hole be communicated with the upper port of described pressure tube formed with the mutual disconnected pressurization passageway of described production passage;
Described upper hydraulic control screen casing is radially arranged can with the first flow-guiding channel of described production passageway break, the external fluid injected by described pressurization passageway is transported to described upper hydraulic control screen casing via the first pipeline, and described fluid drives described first flow-guiding channel and described production channel conductive; Described lower hydraulic control screen casing is radially arranged can with the second flow-guiding channel of described production channel conductive, the described fluid injected by described pressurization passageway is transported to described lower hydraulic control screen casing via the second pipeline, and described fluid drives described second flow-guiding channel and described production passageway break.
2. the continuous formation testing system of layering according to claim 1, it is characterized in that, described upper hydraulic control screen casing comprises normally close valve, described normally close valve comprises the first housing of hollow and to be arranged in described first housing and the first sliding sleeve coordinated with its slipper seal, described first housing is radially arranged the first outer pod apertures; By described first sliding sleeve described first outer pod apertures and described production passageway break are blocked to described first outer pod apertures, slide over moving axially in described first housing by described first and expose described first outer pod apertures, by described first outer pod apertures and described production channel conductive;
Described lower hydraulic control screen casing comprises normally open valve, and described normally open valve comprises the second housing of hollow and to be arranged in described second housing and the second sliding sleeve coordinated with its slipper seal, described second housing is radially arranged the second outer pod apertures; Described second outer pod apertures is exposed by described second outer pod apertures and described production channel conductive by described second sliding sleeve, described second sliding sleeve that moves axially slided in described second housing by described second blocks described second outer pod apertures, by described second outer pod apertures and described production passageway break.
3. the continuous formation testing system of layering according to claim 2, is characterized in that, described first sliding sleeve is radially arranged the first Inner guide hole, is staggered, close described first flow-guiding channel by the position of described first Inner guide hole and described first outer pod apertures; By described first sliding sleeve to move axially described first Inner guide hole corresponding with the position of described first outer pod apertures, be communicated with and form described first flow-guiding channel;
Described second sliding sleeve is radially arranged the second Inner guide hole, corresponding with the position of described second outer pod apertures by described second Inner guide hole, be communicated with and form described second flow-guiding channel; By described second sliding sleeve move axially described second Inner guide hole and described second outer pod apertures staggers completely, close described second flow-guiding channel.
4. the continuous formation testing system of layering according to claim 2, is characterized in that, described first housing comprise set gradually from top to bottom and end winding support connect the first top connection and the first lower contact; Described first top connection is fixedly connected with the first sliding sleeve by shear pin, and described first outer pod apertures is arranged in described first top connection;
The outer wall of described first sliding sleeve arranges first shaft shoulder, and the lower end abutment of described first top connection is on described first shaft shoulder; Between the inwall of described first lower contact and the outer wall of described first sliding sleeve, gap is set and forms the first annular space sealed, the upper end of described first annular space extends to described first shaft shoulder place, described first annular space is communicated with described pressurization passageway by described first pipeline, by injecting described first annular space and described in the described fluid forces acting on described first shaft shoulder, the first sliding sleeve moves down;
Described second housing comprise set gradually from top to bottom and end winding support connect the second top connection and the second lower contact; Described second top connection is fixedly connected with the second sliding sleeve by shear pin, and described second outer pod apertures is arranged in described second top connection;
The outer wall of described second sliding sleeve arranges second shaft shoulder, and the lower end abutment of described second top connection is on described second shaft shoulder; Between the inwall of described second lower contact and the outer wall of described second sliding sleeve, gap is set and forms the second annular space sealed, the upper end of described second annular space extends to described second shaft shoulder place, described second annular space is communicated with described pressurization passageway by described second pipeline, by injecting described second annular space and described in the described fluid forces acting on described second shaft shoulder, the second sliding sleeve moves down.
5. the continuous formation testing system of layering according to claim 2, it is characterized in that, described lower hydraulic control screen casing also comprises auxiliary normally close valve, described auxiliary normally close valve is radially arranged can with the 3rd flow-guiding channel of described production passageway break, the described fluid injected by described pressurization passageway is transported to described auxiliary normally close valve via the 3rd pipeline, and described fluid drives described 3rd flow-guiding channel and described production channel conductive.
6. the continuous formation testing system of layering according to claim 5, it is characterized in that, described auxiliary normally close valve comprises the 3rd housing of hollow and to be arranged in described 3rd housing and the 3rd sliding sleeve coordinated with its slipper seal, described 3rd housing radially arranges the 3rd outer pod apertures, described 3rd sliding sleeve radially arranges the 3rd Inner guide hole; By described 3rd sliding sleeve blocking described 3rd outer pod apertures, close described 3rd flow-guiding channel; By the described 3rd slide in described 3rd housing to move axially described 3rd Inner guide hole corresponding with the position of described 3rd outer pod apertures, be communicated with and form described 3rd flow-guiding channel.
7. the continuous formation testing system of layering according to claim 6, is characterized in that, described 3rd housing comprise set gradually from top to bottom and end winding support connect the 3rd top connection and the 3rd lower contact; Described 3rd top connection is fixedly connected with the 3rd sliding sleeve by shear pin, and described 3rd outer pod apertures is arranged in described 3rd top connection;
The outer wall of described 3rd sliding sleeve arranges the 3rd shaft shoulder, and the lower end abutment of described 3rd top connection is on described 3rd shaft shoulder; Between the inwall of described 3rd lower contact and the outer wall of described 3rd sliding sleeve, gap is set and forms the 3rd annular space sealed, the upper end of described 3rd annular space extends to described 3rd shaft shoulder place, described 3rd annular space is communicated with described pressurization passageway by described 3rd pipeline, by injecting described 3rd annular space and described in the described fluid forces acting on described 3rd shaft shoulder, the 3rd sliding sleeve moves down.
8. the continuous formation testing system of layering according to claim 7, is characterized in that, described auxiliary normally close valve is arranged on above or below described normally open valve, and described 3rd pipeline is communicated to described second pipeline.
9. the continuous formation testing system of layering according to claim 1, is characterized in that, described upper packer and described at least one upper strata pressure gauge is set between hydraulic control screen casing, in the below of described lower hydraulic control screen casing, at least one lower floor's pressure gauge is set.
10. the continuous formation testing system of layering according to claim 1, is characterized in that, described discharge opeing test suite comprises the pumping equipment, circulating valve and the testing valve assembly that connect successively from top to bottom.
The continuous formation testing system of 11. layering according to claim 1, it is characterized in that, described igniter head is connected to the top of described perforating gun, and described igniter head is for igniting described perforating gun, and the lower end of described pressure tube is communicated to described igniter head.
The continuous formation testing system of 12. layering according to claim 1, is characterized in that, on described, arrange safety joint between hydraulic control screen casing and described lower packet.
The continuous formation testing system of 13. layering according to claim 4, it is characterized in that, the outer wall of described first sliding sleeve arranges the spacing shaft shoulder of the first sliding sleeve, the inwall of described first lower contact arranges the spacing shaft shoulder of the first lower contact in the below of described first annular space; On the spacing shaft shoulder of described first sliding sleeve or on the spacing shaft shoulder of described first lower contact, arrange the first beam, the spacing shaft shoulder of the first sliding sleeve described in when described first sliding sleeve moves down is leant by described first beam and the spacing shaft shoulder of described first lower contact;
The outer wall of described second sliding sleeve arranges the spacing shaft shoulder of the second sliding sleeve, the inwall of described second lower contact arranges the spacing shaft shoulder of the second lower contact in the below of described second annular space; On the spacing shaft shoulder of described second sliding sleeve or on the spacing shaft shoulder of described second lower contact, arrange the second beam, the spacing shaft shoulder of the second sliding sleeve described in when described second sliding sleeve moves down is leant by described second beam and the spacing shaft shoulder of described second lower contact.
The using method of 14. 1 kinds of continuous formation testing systems of layering, is characterized in that, adopts the continuous formation testing system of layering as described in any one of claim 1 to 13, comprises the steps:
S10, connects to form G.I.H after tubing string by the upper end of continuous for described layering formation testing system and oil well pipe; Continuous for described layering formation testing system interval is positioned in sleeve pipe, school is dark, adjust described tubing string, upper packer is positioned at wait to try the top of layer, lower packet be positioned at described on wait to try the below of layer, to wait to try layer under perforating gun is aimed at; Set described upper packer and described lower packet;
S20, enters fluid by oil jacket annular injection, and the pressure values setting described fluid is P1, the second flow-guiding channel and production channel conductive, under described, treat that examination layer carries out perforation; To treating that examination layer is tested under described, acidifying, discharge opeing, complete described under wait to try the formation testing operation of layer;
S30, injects described fluid by oil jacket annular space, and the pressure values setting described fluid is P2, described P2 is greater than described P1, described fluid injects lower hydraulic control screen casing through pressurization passageway and the second pipeline successively, described second flow-guiding channel and described production passageway break, complete described under treat the closing well of examination layer;
S40, described fluid is injected by oil jacket annular space, the pressure values setting described fluid is P3, described P3 is greater than described P2, described fluid injects upper hydraulic control screen casing through pressurization passageway and the first pipeline successively, described first flow-guiding channel and described production channel conductive, to treating that examination layer is tested on described, acidifying, discharge opeing, complete described on wait to try the formation testing operation of layer.
The using method of the continuous formation testing system of 15. layering according to claim 14, it is characterized in that, also S45 is comprised after described S40, described S45 is included in described lower hydraulic control screen casing and arranges auxiliary normally close valve, described auxiliary normally close valve is radially arranged can with the 3rd flow-guiding channel of described production passageway break;
Described fluid is injected by oil jacket annular space, the pressure values setting described fluid is P4, described P4 is greater than described P3, the described fluid injected by described pressurization passageway is transported to described auxiliary normally close valve via the 3rd pipeline, described fluid drives described 3rd flow-guiding channel and described production channel conductive, prepares for tripping out described tubing string.
The using method of the continuous formation testing system of 16. layering according to claim 15, it is characterized in that, also S50 is comprised after described S45, described S50 is included in discharge opeing test suite and arranges circulating valve, open described circulating valve, carry out well-flushing, kill job successively, then, put forward the continuous formation testing system of described layering, upper packer described in deblocking and described lower packet, trip out the continuous formation testing system of described layering.
The using method of the continuous formation testing system of 17. layering according to claim 16, is characterized in that, between described S30 and described S40, also comprise S35, described S35 comprises according to construction requirement, open described circulating valve, carry out well-flushing successively, make negative pressure operation, then close described circulating valve.
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