CN102505921B - Water searching pipe column of open-hole horizontal well - Google Patents
Water searching pipe column of open-hole horizontal well Download PDFInfo
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- CN102505921B CN102505921B CN201110345387.0A CN201110345387A CN102505921B CN 102505921 B CN102505921 B CN 102505921B CN 201110345387 A CN201110345387 A CN 201110345387A CN 102505921 B CN102505921 B CN 102505921B
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Abstract
The invention discloses a water searching pipe column of an open-hole horizontal well, comprising an oil pipe, wherein a suction device is arranged in the oil pipe; the water searching pipe column is characterized in that: the oil pipe extends along the axis of a shaft of the horizontal well; the lower end of the oil pipe is connected with a horizontal well centering device, a hydraulic setting tool, a long rubber cylinder water searching upper packer, a flow distributing device, a lower packet and a lower centering device which are sequentially connected from top to bottom. The long rubber cylinder water searching upper packer disclosed by the invention employs hydraulic setting and lifting unsetting; the water searching and plugging pipe column of the open-hole horizontal well can realize water searching and plugging of the open-hole horizontal well, and search water step by step on a horizontal section, and is reliable in setting and simple in unsetting.
Description
Technical field
Patent of the present invention relates to field of petroleum exploitation, is a kind of water searching pipe column of open-hole horizontal well.
Background technology
At present, in oil exploitation operation, part open-hole horizontal well faces moisture rapid rising and the rapid problem declining of oil production, therefore carrying out fractured carbonate rock open-hole horizontal well looks for water blockoff, water blockoff and completion mode early-stage Study, be the well production of improving the standard, realize important measures of oilfield stable production.In order to realize above-mentioned early-stage Study, need to be pumped into ground to the liquid in open-hole horizontal well segmentation, and by the fluid properties of moisture this horizontal segment of judgement of chemical examination, and the temperature and pressure that obtains different segmentation liquid changes, draw the fracture development status of this horizontal segment, with judgement payzone character, for the lower step measure of this horizontal segment provides foundation.But, for open-hole horizontal well look for water-plugging technique domestic or blank, abroad do not have yet ripe can apply look for water-plugging technique.
Therefore, the inventor is based on being engaged in relevant design and field experience and professional knowledge, positive improvement and bring new ideas in addition, to realizing, a kind ofly can realize horizontal well in segments water detection function and water detection efficiency is high, reliability is high, improve the water searching pipe column of open-hole horizontal well of open-hole horizontal well measure technical level.
Summary of the invention
The object of this invention is to provide and a kind ofly can realize horizontal well in segments water detection function and water detection efficiency is high, reliability is high, improve the water searching pipe column of open-hole horizontal well of open-hole horizontal well measure technical level.
For achieving the above object, the present invention proposes a kind of water searching pipe column of open-hole horizontal well, comprise oil pipe, in described oil pipe, be provided with aspirator, described oil pipe extends downwards along horizontal well pit shaft, lower end at described oil pipe is at least connected with hydraulic setting tool, long packing element type water detection upper packer and lower packet from top to bottom, and described long packing element type water detection upper packer and described lower packet arrange separately, between described long packing element type water detection upper packer and described lower packet, is provided with pressure and temperature meter, at described hydraulic setting tool, in described long packing element type water detection upper packer and described lower packet, be equipped with central tube, one club can stretch in described central tube vertically, and coordinate and set with described central tube, described central tube is connected with described oil pipe, at described central tube and described hydraulic setting tool, between described long packing element type water detection upper packer and described lower packet, be provided with vertically double wall passage, described double wall passage is communicated with or seals with described central tube by relatively moving between described central tube and described hydraulic setting tool, between described long packing element type water detection upper packer and described lower packet, be connected with part flow arrangement, on described part flow arrangement, be provided with a plurality of radial direction through hole that radially connect, described radial direction through hole is connected with described central tube, in described part flow arrangement, offer the axial passage that is communicated in described double wall passage, described radial direction through hole is not communicated with described axial passage.
Water searching pipe column of open-hole horizontal well as above, wherein, described central tube comprises: the first central tube, is arranged in described hydraulic setting tool, and is connected with the lower end of described oil pipe; The second central tube, is arranged in described long packing element type water detection upper packer, and the two ends of described the second central tube are connected respectively at described the first central tube and described part flow arrangement; The 3rd central tube, is arranged in described lower packet, and its one end is connected with described part flow arrangement respectively, and its other end is provided with plug.
Water searching pipe column of open-hole horizontal well as above, wherein, described hydraulic setting tool comprises: overcoat, the outside that is set in described the first central tube of slip; Axial diversion passage, be opened in vertically in described overcoat, the upper end closed of described axial diversion passage, on tube wall at described the first central tube near described axial diversion passage upper end one side, radially offer feed liquor through hole, slip by described overcoat with respect to described the first central tube, controls described feed liquor through hole opening and closing of fault.
Water searching pipe column of open-hole horizontal well as above, wherein, described long packing element type water detection upper packer comprises: the first packing element, is set in the outside of described the second central tube; Between described the first packing element and described the second central tube, have the first end play, described the first end play is connected with described axial diversion passage.
Water searching pipe column of open-hole horizontal well as above, wherein, described part flow arrangement, is set in the lower end outside of described the second central tube, and this part flow arrangement comprises: baffle, is hollow tubular; Described axial passage, is opened in described baffle vertically, and this axial passage is connected with described the first end play; Described a plurality of radial direction through hole, radially runs through the tube wall of described baffle.
Water searching pipe column of open-hole horizontal well as above, wherein, described lower packet comprises: the second packing element, be set in the outside of described the 3rd central tube, between described the second packing element and described the 3rd central tube, there is the second end play, described the second end play is connected with described axial passage, the lower end closed of described the second end play.
Water searching pipe column of open-hole horizontal well as above, wherein, described hydraulic setting tool also comprises: the first top connection and the first lower contact, be connected to the two ends of described the first central tube, and described oil pipe is connected by described the first top connection with described the first central tube; Described the first central tube is connected by described the first lower contact with described the second central tube; Box cupling, is socketed in the outside of described the first lower contact; Between described overcoat and described box cupling, be connected with sheath, connector and conducting element from top to bottom in turn; In described sheath, described connector and described conducting element, offer vertically the flow-guiding channel of perforation, the two ends of described flow-guiding channel are connected with described axial diversion passage and described the first end play respectively, on described conducting element, radially connect and be provided with a plurality of radial holes, described radial hole is not communicated with described flow-guiding channel.
Water searching pipe column of open-hole horizontal well as above, wherein, described club comprises that the leather cup, center-pole and the tail that connect are successively stifled, on described center-pole, be provided with lug boss, it is outside that one pawl spring is sheathed on described center-pole, described pawl spring and described lug boss match and merge and can endwisely slip along described center-pole, and described pawl spring is connected by cutting off pin with described center-pole.
Water searching pipe column of open-hole horizontal well as above, wherein, in the bottom of described the first central tube, be provided with match with described club first set portion, described first portion of setting is positioned at the downside of described feed liquor through hole; In the bottom of the adapter sleeve of described part flow arrangement, be provided with match with described club second set portion.
Water searching pipe column of open-hole horizontal well as above, wherein, is provided with centralizer on horizontal well at the upside of described packing element water detection upper packer; Downside at described lower packet is provided with centralizer under horizontal well.
Compared with prior art, the present invention has following characteristics and advantage:
Open-hole horizontal well water detecting and plugging pipe column of the present invention can be realized open-hole horizontal well and look for water blockoff, and can set reliably in horizontal segment water detection step by step, and deblocking is simple.
Accompanying drawing explanation
The following drawings is only intended to the present invention to schematically illustrate and explain, not delimit the scope of the invention.Wherein,
Fig. 1 is the structural representation of water searching pipe column of open-hole horizontal well of the present invention;
Fig. 2 is the structural representation of hydraulic setting tool of the present invention;
Fig. 3 is the structural representation that long packing element type water detection upper packer of the present invention is connected with part flow arrangement;
Fig. 4 is the amplification assumption diagram of A part in Fig. 3;
Fig. 5 is the main TV structure schematic diagram of the baffle of part flow arrangement of the present invention;
Fig. 6 is the side-looking cross-sectional view of Fig. 5;
Fig. 7 is the partial cross section schematic diagram of lower packet of the present invention;
Fig. 8 is the structural representation of the conducting element of hydraulic setting tool of the present invention;
Fig. 9 is the side-looking cross-sectional view of Fig. 8;
Figure 10 is the structural representation of club of the present invention.
Description of reference numerals:
1-oil pipe; 2-aspirator; Centralizer on 3-horizontal well; 4-hydraulic setting tool; 41-overcoat; 42-axial diversion passage; 43-feed liquor through hole; 44-the first top connection; 45-the first lower contact; 46-box cupling; 47-sheath; 48-connector; 49-conducting element; 491-flow-guiding channel; 492-radial hole; 493-registration holes; 5-long packing element type water detection upper packer; 51-the first packing element; 52-the first end play; 53-the second top connection; The outer female connector of 54-; 55-connector; 6-part flow arrangement; 61-radial direction through hole; 62-axial passage; 63-baffle; The outer connector of 64-; 65-adapter sleeve; 66-the second lower contact; 67-radial perforation; 7-lower packet; 71-the second packing element; 72-the second end play; Centralizer under 8-horizontal well; 9-pressure and temperature meter; 10-club; 11-the first central tube; 12-the second central tube; 13-the 3rd central tube; 14-plug; 15-leather cup; 16-center-pole; 17-tail is stifled; 18-lug boss; 19-pawl spring; 20-cuts off pin; 21-first sets portion; 22-second sets portion.
The specific embodiment
For technical characterictic of the present invention, object and effect being had more clearly, understand, now contrast accompanying drawing explanation the specific embodiment of the present invention.
Please refer to Fig. 1 to Fig. 4, be respectively the structural representation of water searching pipe column of open-hole horizontal well of the present invention; The structural representation of hydraulic setting tool; The structural representation that long packing element type water detection upper packer is connected with part flow arrangement; And A amplification assumption diagram partly in Fig. 3.As shown in the figure, the water searching pipe column of open-hole horizontal well that the present invention proposes, comprise oil pipe 1, in oil pipe 1, be provided with aspirator 2, liquid for pump up water horizontal well, oil pipe 1 extends downwards along horizontal well pit shaft, in the lower end of oil pipe 1, be connected with centralizer 8 under centralizer 3 on horizontal well, hydraulic setting tool 4, long packing element type water detection upper packer 5, part flow arrangement 6, lower packet 7 and horizontal well from top to bottom in turn, long packing element type water detection upper packer 5 arranges separately with lower packet 7, for the tested horizontal well water detection of packing well section; Between long packing element type water detection upper packer 5 and lower packet 7, be provided with pressure and temperature meter 9, the temperature, pressure while producing for measuring this tested horizontal well water detection well section changes; In hydraulic setting tool 4, long packing element type water detection upper packer 5 and lower packet 7, be equipped with central tube, club 10 can stretch in central tube vertically, and coordinate and set with central tube, the upper end of central tube is connected with oil pipe 1, between central tube and hydraulic setting tool 4, long packing element type water detection upper packer 5 and lower packet 7, be provided with vertically double wall passage, for delivery of pressure fluid, to long packing element type water detection upper packer 5 and lower packet 7, achieve packing function; This double wall passage is communicated with central tube or is sealed by relatively moving between central tube and hydraulic setting tool 4, thereby controlled pressure liquid enters in double wall passage, and then long packing element type water detection upper packer 5 and lower packet 7 are expanded with a horizontal segment of shutoff horizontal well pit shaft, realize packing function.Between long packing element type water detection upper packer 5 and lower packet 7, be connected with part flow arrangement 6.Please also refer to Fig. 5, Fig. 6, be respectively main TV structure schematic diagram and the side cutaway view of the baffle of part flow arrangement of the present invention.As shown in the figure, on part flow arrangement 6, be provided with a plurality of radial direction through hole 61 that radially connect, radial direction through hole 61 is connected with central tube, the liquid of packing in the water detection section of horizontal well can be entered in central tube by radial direction through hole 61, and more than being pumped to horizontal well well head by aspirator 2 via oil pipe 1, to process and analyze.In part flow arrangement 6, offer the axial passage 62 that is communicated in double wall passage, radial direction through hole 61 is not communicated with axial passage 62, be that radial direction through hole 61 is crisscross arranged at intervals with axial passage 62, make like this radial direction through hole 61 not be communicated with double wall passage, thereby guarantee in packing, can carry out the extraction operation of closed section liquid, and then realize horizontal well in segments water detection function and water detection efficiency is high, reliability is high, improve open-hole horizontal well measure technical level.
Further, central tube comprises: the first central tube 11, is arranged in hydraulic setting tool 4, and is connected with the lower end of oil pipe 1; The second central tube 12, is arranged in long packing element type water detection upper packer 5, and the two ends of the second central tube 12 are connected respectively at the first central tube 11 and part flow arrangement 6; The 3rd central tube 13, is arranged in lower packet 7, and one end of the 3rd central tube 13 is connected with part flow arrangement 6, and its other end is provided with plug 14, makes like this central tube treating in well logging section through horizontal well.
Further, as shown in Figure 2, hydraulic setting tool 4 comprises overcoat 41 and axial diversion passage 42, the outside that is set in the first central tube 11 that overcoat 41 slides; Axial diversion passage 42 is opened in overcoat 41 vertically, the upper end closed of axial diversion passage 42, on tube wall at the first central tube 11 near axial diversion passage 42 upper end one sides, radially offer feed liquor through hole 43, to be communicated with the first central tube 11 and axial diversion passage 42, the pressure fluid that makes to flow in the first central tube 11 can enter in axial diversion passage 42 by this feed liquor through hole 43.When axial diversion passage 42 is full of after enough pressure fluids, under the effect of external force, it is descending with respect to overcoat 41 that the first central tube 11 overcomes resistance, makes feed liquor through hole 43 be displaced downwardly to the downside of overcoat 41, makes 43 sealings of feed liquor through hole; When needs discharge pressure liquid, the first central tube 11 is up with respect to overcoat 41, makes on feed liquor through hole 43, move and be conducted with axial diversion passage 42, and feed liquor through hole 43 is opened; The slip with respect to overcoat 41 by the first central tube 11 like this, thus described feed liquor through hole 43 opening and closing of fault controlled.
Further, as shown in Figure 2, hydraulic setting tool 4 also comprises: the first top connection 44, the first lower contact 45, box cupling 46, sheath 47, connector 48 and conducting element 49, the first top connection 44 and the first lower contact 45 are connected to the two ends of the first central tube 11, and oil pipe 1 is connected by the first top connection 44 with the first central tube 11; The first central tube 11 is connected by the first lower contact 45 with the second central tube 12, and oil pipe 1, the first central tube 11, the second central tube 12 are connected.Box cupling 46 is socketed in the outside of the first lower contact 45, for being connected with long packing element type water detection upper packer 5.Between overcoat 41 and box cupling 46, be connected with sheath 47 from top to bottom in turn, connector 48 and conducting element 49, as Fig. 8, shown in Fig. 9, at sheath 47, in connector 48 and conducting element 49, offer vertically flow-guiding channel 491 (not shown)s of perforation, the two ends of flow-guiding channel 491 are connected with axial diversion passage 42 and the first end play 52 respectively, on conducting element 49, radially connect and be provided with a plurality of radial holes 492, radial hole 492 is not communicated with flow-guiding channel 491, on the first central tube 11, offer the registration holes 493 (as shown in Figure 2) with radial hole 492 phase contrapositions, like this at the first central tube 11 during in upper limit position, radial hole 492 is connected with registration holes 493, liquid water in horizontal well can be entered in the first central tube 11 and is beneficial to realize packing by radial hole 492 and registration holes 493, and at the first central tube 11 when descending, radial hole 492 and the first central tube 11 sealings.
Further, as shown in Figure 3, Figure 4, long packing element type water detection upper packer 5 comprises: the first packing element 51, is set in the outside of the second central tube 12; Between the first packing element 51 and the second central tube 12, there is the first end play 52, the first end play 52 is connected with axial diversion passage 42, make like this pressure fluid enter in the first end play 52 by axial diversion passage 42, to realize the expansion of long packing element type water detection upper packer 5, play packing effect.
Further, as shown in Figure 3, long packing element type water detection upper packer 5 also comprises: the second top connection 53, outer female connector 54, connector 55, and box cupling 46 is connected by the second top connection 53 with the first packing element 51; Outer female connector 54 is connected in the lower end of the first packing element 51; Connector 55 is connected between outer female connector 54 and baffle 49.
Further, as shown in Fig. 3, Fig. 5, part flow arrangement 6 is set in the outside, lower end of the second central tube 12, and this part flow arrangement 6 comprises: the baffle 63 that is hollow tubular; Axial passage 62 is opened in baffle 63 vertically, and this axial passage 62 is connected with described the first end play 52, and pressure fluid is flowed downward by axial passage 62; A plurality of radial direction through hole 61 radially run through the tube wall of baffle 63, the water in tested Horizontal Well section can be flowed in the second central tube 12 by part flow arrangement 6, then by the first central tube and oil pipe 1, extract horizontal well via aspirator 2 out.The present invention is not restricted the quantity of part flow arrangement 6, and the quantity of part flow arrangement 6 can be added the part flow arrangement of suitable number according to the number of the water detection number of plies.The effect of part flow arrangement is to lower packet 7 pressure transmissions, lower packet 7 to be set, and another effect is that liquid enters central tube inside by radial direction through hole 61.
Further, as shown in Figure 3, part flow arrangement 6 also comprises outer connector 64, adapter sleeve 65 and the second lower contact 66, at baffle 63 downsides, be connected with outer connector 64, adapter sleeve 65 in turn, in the lower end of adapter sleeve 65, be connected with the second lower contact 66, on connector 64 and adapter sleeve 65, offer vertically fluid passage (not shown) outside, the two ends of fluid passage are connected with axial passage 62 and the second end play 72 respectively, on connector 64 and adapter sleeve 65, radially offer a plurality of radial perforations 67 outside, radial perforation 67 is not communicated with fluid passage.
Further, as shown in Figure 7, lower packet 7 comprises: the second packing element 71, be set in the outside of the 3rd central tube 13, between the second packing element 71 and the 3rd central tube 13, there is the second end play 72, the second end play 72 is connected with axial passage 62, the lower end closed of the second end play 72, like this central tube with hydraulic setting tool 4, between long packing element type water detection upper packer 5 and lower packet 7 by axial diversion passage 42, the first end play 52, axial passage 62 and the second end play 72 form double wall passage, pressure fluid is full of double wall passage, long packing element type water detection upper packer 5 is expanded together with lower packet 7, thereby play the effect of the horizontal well water detection section of packing between long packing element type water detection upper packer 5 and lower packet 7.
Further, as shown in figure 10, club 10 comprises leather cup 15, center-pole 16 and the tail stifled 17 connecting successively, on center-pole 16, be provided with lug boss 18, pawl spring 19 is sheathed on center-pole 16 outsides, pawl spring 19 matches and merges and can endwisely slip along center-pole 16 with lug boss 18, and pawl spring 19 is connected by cutting off pin 20 with center-pole 16.When club 10 drops into after central tubes, first in the bottom of the first central tube 11, be provided with first setting portion 21, the first and set the downside that portion 21 is positioned at feed liquor through hole 43 of matching with club 10; Club 10 falls, in the bottom of the adapter sleeve 65 of part flow arrangement 6, be provided with match with club 10 second set portion 22, make like this club 10 to set portion 21 and second first and set portion 22 and realize setting central tube.In use, club 10 drops in central tube, first sets in first and sets portion 21; After completing packing, center-pole 16 is under the promotion of external force, external force is passed to and cuts off pin 20, when external force reaches the rated value of cutting off pin 20, cut off pin 20 and cut off, center-pole 16 is descending, pawl spring 19 is separated with lug boss 18, and pawl spring 19 pressurizeds shrink, and makes club 10 to set portion 21 and fall to second and set portion 22 and realize and setting through first, to guarantee that the liquid in tested horizontal well water detection well section is plugged in central tube, to extract operation.
The present invention is directed to high moisture open-hole horizontal well, according to geology decile, analyse net horizontal section is divided into several object horizontal segments, then utilize oil pipe that the upper and lower packer of horizontal well water detection and kit (comprising pressure and temperature meter 9) are lowered to planned well section, utilize aspirator to produce, and by the fluid properties of moisture this horizontal segment of judgement of chemical examination.Temperature, pressure when simultaneously the pressure of memory-type and temperature meter can record this horizontal segment and produce changes, and carries out playback after instrument is proposed to ground, just can draw the fracture development status of this horizontal segment, for the lower step measure of this horizontal segment provides foundation.
Operating principle of the present invention is: under water searching pipe column of open-hole horizontal well of the present invention after design attitude, drop into club 10, oil pipe is applied certain pressure and maintains this pressure and surpass the regular hour, to guarantee that long packing element type water detection upper packer 5 and lower packet 7 expand fully, after slowly transferring central tube, continue to suppress until pressure release, now, the disconnected stratum of sealing layer is communicated with in central tube by part flow arrangement, liquid in stratum can enter in central tube, utilize aspirator to produce liquid is pumped into ground, and by the fluid properties of moisture this horizontal segment of judgement of chemical examination.After payzone character is clear and definite, upper lifting pipe post is to another interval, repeat above-mentioned input club to stratum liquid and enter the process of oil pipe until water detection is complete, in the time of each interval water detection, the pressure of memory-type and temperature meter record relevant pressure, temperature variations, carry out playback after measuring appliance is proposed to ground.
The course of work of the present invention is: the box cupling of hydraulic base sealed instrument is connected with the top connection of long packing element type water detection upper packer, and the lower surface of the lower contact of hydraulic base sealed instrument is enclosed within on the upper surface of the second central tube.While setting, club drops into oil pipe, club is under the effect of fluid power, be sitting on the inclined-planes of 30 degree on the first central tube of hydraulic base sealed instrument, continue pressurization, liquid enters by the feed liquor through hole on the first central tube, axis enters long packing element type water detection upper packer 5 to flow-guiding channel 42 and flow-guiding channel 491, by the second top connection 53 axially on hole enter in the first packing element 51 and folded the first end play 52 of the second central tube 12, liquid continues downwards, by the axial passage 62 of baffle 63, and baffle 63, outer connector 64, the fluid course of adapter sleeve 65 enters lower packet 7, the lower contact of lower packet 7 is connected to plug 14, the inside of whole like this tubing string has just formed annular seal space.Along with the 15MPa left and right packer that is elevated to of pressure sets completely, transfer tubing string (central tube is descending), close the inlet opening on the first central tube of hydraulic base sealed instrument, packer 5,7 is always in setting state like this, continue pressurization and destroy club 10, club 10 is fallen the inside of the connector 55 of long packing element type water detection upper packer 5, completes setting of packer 5,7.
During deblocking, upper lifting pipe post, makes the feed liquor through hole 43 of the central tube of hydraulic base sealed instrument open like this, and the radial direction through hole 61 that liquid makes progress by feed liquor through hole 43 and baffle 63 footpaths enters central tube, makes oily central tube balance, removing seal for packer.
Open-hole horizontal well water detecting and plugging pipe column of the present invention can be realized open-hole horizontal well and look for water blockoff, and can be in horizontal segment water detection step by step.Set reliably, deblocking is simple, and long packing element type water detection upper packer of the present invention adopts hydraulic setting, above carries deblocking, and maximum outside diameter is Φ 120mm, minimum interior latus rectum Φ 46mm; Total length 2435mm, can repeatedly set and deblocking; Hydraulic setting tool maximum outside diameter is Φ 114mm, minimum interior latus rectum Φ 40mm; Total length 1469mm; Horizontal well is Φ 43mm with club 10 maximum outside diameters, total length 448.5mm, and shear pin 9 is cut off pressure 15MPa.
The present invention mainly by the upper and lower packer of horizontal well water detection, set the kits such as club, hydraulic setting tool, part flow arrangement, horizontal well centralizer, pumping system and form.Oil pipe, centralizer, upper packer, centralizer, part flow arrangement, lower packet are connected and are lowered in pit shaft with club recover etc., and water detection upper packer must support the use with pitching bar setting tool.During work from well head drops into club, oil pipe is applied to certain pressure, club is sent on the ball seat (first sets portion 21 and second sets portion 22) in setting tool, and maintain this pressure over the regular hour, to guarantee that the packing element of upper packer and lower packet expands fully, the time of recommending is at least to want more than 15 minutes, continues to suppress until pressure release makes packer seal all the time oil jacket annular space after slowly transferring tubing string.Now, the disconnected stratum of sealing layer is communicated with central tube by part flow arrangement, liquid in stratum can enter in central tube, utilize aspirator to produce liquid is pumped into ground, and by the fluid properties of moisture this horizontal segment of judgement of chemical examination, after payzone character is clear and definite, upper lifting pipe post is to another interval, repeat above-mentioned input club to stratum liquid and enter the process of oil pipe until water detection is complete, in the time of each interval water detection, the pressure of memory-type and temperature meter record relevant temperature, pressure changing, carry out playback after measuring appliance is proposed to ground.
The foregoing is only the schematic specific embodiment of the present invention, not in order to limit scope of the present invention.Any those skilled in the art, not departing from equivalent variations and the modification of having done under the prerequisite of design of the present invention and principle, all should belong to the scope of protection of the invention.
Claims (6)
1. a water searching pipe column of open-hole horizontal well, comprise oil pipe, in described oil pipe, be provided with aspirator, it is characterized in that, described oil pipe extends downwards along horizontal well pit shaft, lower end at described oil pipe is at least connected with hydraulic setting tool, long packing element type water detection upper packer and lower packet from top to bottom, and described long packing element type water detection upper packer and described lower packet arrange separately, between described long packing element type water detection upper packer and described lower packet, is provided with pressure and temperature meter, at described hydraulic setting tool, in described long packing element type water detection upper packer and described lower packet, be equipped with central tube, one club can stretch in described central tube vertically, and coordinate and set with described central tube, described central tube is connected with described oil pipe, at described central tube and described hydraulic setting tool, between described long packing element type water detection upper packer and described lower packet, be provided with vertically double wall passage, described double wall passage is communicated with or seals with described central tube by relatively moving between described central tube and described hydraulic setting tool, between described long packing element type water detection upper packer and described lower packet, be connected with part flow arrangement, on described part flow arrangement, be provided with a plurality of radial direction through hole that radially connect, described radial direction through hole is connected with described central tube, in described part flow arrangement, offer the axial passage that is communicated in described double wall passage, described radial direction through hole is not communicated with described axial passage,
Described central tube comprises:
The first central tube, is arranged in described hydraulic setting tool, and is connected with the lower end of described oil pipe;
The second central tube, is arranged in described long packing element type water detection upper packer, and the two ends of described the second central tube are connected with described the first central tube and described part flow arrangement respectively;
The 3rd central tube, is arranged in described lower packet, and its one end is connected with described part flow arrangement respectively, and its other end is provided with plug;
Described hydraulic setting tool comprises:
Overcoat, the outside that is set in described the first central tube of slip;
Axial diversion passage, be opened in vertically in described overcoat, the upper end closed of described axial diversion passage, on tube wall at described the first central tube near described axial diversion passage upper end one side, radially offer feed liquor through hole, slip by described overcoat with respect to described the first central tube, controls described feed liquor through hole opening and closing of fault;
Described long packing element type water detection upper packer comprises:
The first packing element, is set in the outside of described the second central tube;
Between described the first packing element and described the second central tube, have the first end play, described the first end play is connected with described axial diversion passage;
Described hydraulic setting tool also comprises:
The first top connection and the first lower contact, be connected to the two ends of described the first central tube, and described oil pipe is connected by described the first top connection with described the first central tube; Described the first central tube is connected by described the first lower contact with described the second central tube;
Box cupling, is socketed in the outside of described the first lower contact;
Between described overcoat and described box cupling, be connected with sheath, connector and conducting element from top to bottom in turn; In described sheath, described connector and described conducting element, offer vertically the flow-guiding channel of perforation, the two ends of described flow-guiding channel are connected with described axial diversion passage and described the first end play respectively, on described conducting element, radially connect and be provided with a plurality of radial holes, described radial hole is not communicated with described flow-guiding channel.
2. water searching pipe column of open-hole horizontal well as claimed in claim 1, is characterized in that, described part flow arrangement is set in the lower end outside of described the second central tube, and this part flow arrangement comprises:
Baffle, is hollow tubular;
Described axial passage, is opened in described baffle vertically, and this axial passage is connected with described the first end play;
Described a plurality of radial direction through hole, radially runs through the tube wall of described baffle.
3. water searching pipe column of open-hole horizontal well as claimed in claim 2, is characterized in that, described lower packet comprises:
The second packing element, is set in the outside of described the 3rd central tube,
Between described the second packing element and described the 3rd central tube, have the second end play, described the second end play is connected with described axial passage, the lower end closed of described the second end play.
4. water searching pipe column of open-hole horizontal well as claimed any one in claims 1 to 3, it is characterized in that, described club comprises that the leather cup, center-pole and the tail that connect are successively stifled, on described center-pole, be provided with lug boss, it is outside that one pawl spring is sheathed on described center-pole, described pawl spring and described lug boss match and merge and can endwisely slip along described center-pole, and described pawl spring is connected by cutting off pin with described center-pole.
5. water searching pipe column of open-hole horizontal well as claimed in claim 4, is characterized in that, in the bottom of described the first central tube, be provided with match with described club first set portion, described first portion of setting is positioned at the downside of described feed liquor through hole; In the bottom of the adapter sleeve of described part flow arrangement, be provided with match with described club second set portion.
6. water searching pipe column of open-hole horizontal well as claimed in claim 1, is characterized in that, at the upside of described packing element water detection upper packer, is provided with centralizer on horizontal well; Downside at described lower packet is provided with centralizer under horizontal well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110345387.0A CN102505921B (en) | 2011-11-04 | 2011-11-04 | Water searching pipe column of open-hole horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110345387.0A CN102505921B (en) | 2011-11-04 | 2011-11-04 | Water searching pipe column of open-hole horizontal well |
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| CN102505921B true CN102505921B (en) | 2014-02-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102966314B (en) * | 2012-11-16 | 2014-10-01 | 西南石油大学 | Horizontal well central pipe and water control method thereof |
| CN104213846B (en) * | 2013-06-05 | 2016-07-13 | 中国石油天然气股份有限公司 | Cased hole completion multistage frac water horizontal well selectivity mining tubular column and method of work thereof |
| CN104420868B (en) * | 2013-08-30 | 2017-12-01 | 中国石油天然气股份有限公司 | Horizontal well oil jacket annular space returns the quick searching pipe column of liquid and its groundwater prospecting method |
| CN104120997A (en) * | 2014-07-31 | 2014-10-29 | 中国石油天然气股份有限公司 | Pipe column for horizontal well |
| CN106050222B (en) * | 2016-07-22 | 2023-05-26 | 中国石油天然气股份有限公司 | Water plugging finding tubular column for open hole horizontal well |
| CN108397186B (en) * | 2018-01-31 | 2022-01-04 | 中国石油天然气股份有限公司 | Horizontal well temperature exciting water finding device and method |
| CN116733454B (en) * | 2023-08-01 | 2024-01-02 | 西南石油大学 | Intelligent water finding method for horizontal well |
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| US7201226B2 (en) * | 2004-07-22 | 2007-04-10 | Schlumberger Technology Corporation | Downhole measurement system and method |
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| CN201254968Y (en) * | 2008-10-20 | 2009-06-10 | 大庆油田有限责任公司 | Horizontal well repeatedly adjustable mechanical water research and water shut off pipe string |
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