CN104454669A - Jet pump and oil test technologies based on same - Google Patents

Jet pump and oil test technologies based on same Download PDF

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Publication number
CN104454669A
CN104454669A CN201410498084.6A CN201410498084A CN104454669A CN 104454669 A CN104454669 A CN 104454669A CN 201410498084 A CN201410498084 A CN 201410498084A CN 104454669 A CN104454669 A CN 104454669A
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CN
China
Prior art keywords
sleeve
hole
jet injector
inner eycle
pump
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Granted
Application number
CN201410498084.6A
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Chinese (zh)
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CN104454669B (en
Inventor
张友义
孟庆昆
胡贵
王向东
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China Petroleum and Natural Gas Co Ltd
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China Petroleum and Natural Gas Co Ltd
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Priority to CN201410498084.6A priority Critical patent/CN104454669B/en
Publication of CN104454669A publication Critical patent/CN104454669A/en
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Publication of CN104454669B publication Critical patent/CN104454669B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04FPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/02Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
    • F04F5/10Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing liquids, e.g. containing solids, or liquids and elastic fluids
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B49/00Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells

Abstract

The invention discloses a jet pump which comprises an upper connector provided with upper pressure transmitting holes and middle pressure transmitting holes, a first sleeve, a second sleeve, a third sleeve and a lower connector, wherein the first sleeve is arranged on the upper connector in a sleeving mode, and an upper hydraulic cylinder communicated with the upper pressure transmitting holes is arranged between the first sleeve and the upper connector; the second sleeve is fixedly arranged outside the first sleeve in a sleeving mode; the upper end of the third sleeve is fixedly arranged on the upper connector in a sleeving mode, a middle hydraulic cylinder communicated with the middle pressure transmitting holes is arranged between the upper end of the third sleeve and the lower end of the first sleeve, a lower hydraulic cylinder is arranged between the third sleeve and the second sleeve, the third sleeve is provided with lower pressure transmitting holes communicated with the lower hydraulic cylinder, provided with inner circulating holes and provided with suction holes in the axial direction, and the second sleeve is provided with outer circulating holes matched with the inner circulating holes; the lower connector is fixedly connected with the lower end of the third sleeve. By means of the jet pump, the oil test technologies such as perforation, test, pumping drainage, high-pressure pump injection and pump drainage combining five kinds of operation can be achieved under the condition that the sleeves are protected.

Description

Jet injector and the oil testing tech based on this Jet injector
Technical field
The present invention relates to petroleum exploration and development Oil Test Technology field, particularly a kind of Jet injector and the oil testing tech based on Jet injector.
Background technique
In oil-gas exploration and development process, need to carry out formation testing (test) operation to the oil-gas layer in well.Under in well, enter testing tool, gather underground oil and gas, to measure the data such as pressure, temperature, output and fluidity, to carry out economy and technology assessment to payzone timely and accurately.
The operation of common testing process engineering comprises: perforation, formation testing, Jet injector discharge opeing, reservoir reconstruction etc.
In described reservoir reconstruction process, need under the prerequisite protecting sleeve pipe, can suitably improve infusion pressure, to expand transformation scale, to improve correctional effect.In the described reservoir reconstruction later stage, after flowing phase, because stratum energy is lower, often need the raffinate of transformation reservoir to be discharged stratum by modes such as various auxiliary discharge opeings.
Present oil testing tech technology is just towards the future development that multi-functional tube column combination connection is done.Jet injector discharge opeing because of possess not by well bore condition restriction, applied widely, adjust the advantages such as ginseng facilitates, can deeply arrange continuously, forced-ventilated, become one of current draining mode the most rapidly and efficiently, " perforation-test-Jet injector discharge opeing-reservoir reconstruction-Jet injector discharge opeing " five combination operation process obtain a wide range of applications at the scene, it achieve the hope completing the multinomial operations such as underbalance perforating, formation testing, Jet injector continuous draining, middle-size and small-size measures to reform, discharge opeing with one-trip string.Its deficiency is, the hydraulic switch sliding bush that tubing string uses is disposable switch sliding sleeve, is mainly used in the discharge opeing problem before solving transformation, but also causes the high pressure that reservoir reconstruction operation middle sleeve is had to when bearing infusion, easily affect Service Life of Casing, even cause the accident.In addition, due to the restriction by well structure and sleeve pipe bearing capacity, have impact on reservoir reconstruction scale and effect, be also difficult to after transformation realize underground switch well by applied pressure by annulus.Though separately there is mechanical impact formula switching sliding sleeve can multiple switching, successful operation rate be not high, and is not suitable for deep-well or high angle hole.
As shown in Figure 1, shown Jet injector 3 comprises pump case 30 and pump core 31 to the Jet injector that described tubing string uses, and its upper end is positioned at described sleeve pipe 2 after being connected with oil pipe 1.Described housing 30 is provided with an outer by-pass hole 301.As shown in Figure 2, be described by-pass hole 301 position partial enlarged drawing.
The direction, aperture of described outer by-pass hole 301 is provided with the hermetically sealed case 302 just right with it away from the position at Jet injector 3 center.In described outer by-pass hole 301 in the radial direction, on the sidewall of described pump core 31, be also provided with the perforate 311 corresponding with described outer by-pass hole 301.Described sealing sliding sleeve 302 is fixed on described pump case 30 by shear pin 303, and described outer by-pass hole 301 is in closed condition, and described Jet injector 3 is not communicated with sleeve pipe 2.When described shear pin 303 is cut off, described hermetically sealed case 302 falls into below outer by-pass hole, and described outer by-pass hole 301 is in open mode, and described Jet injector 3, oil pipe 1 are all communicated with sleeve pipe 2.Because described by-pass hole 301 can only be become open mode from closed condition by described sealing sliding sleeve 302, it is therefore disposable switch pump case 30.
When needing the Jet injector discharge opeing before carrying out reservoir reconstruction, open described disposable hermetically sealed case 302, outer by-pass hole 301 is opened, then drop into the pump core 31 of Jet injector 3, carry out Jet injector 3 discharge opeing operation.But after the outer by-pass hole 301 on described Jet injector 3 pump case 30 is opened, described outer by-pass hole 301 just cannot again be closed or again open, therefore described outer by-pass hole 301 is in open mode all the time.Because described outer by-pass hole 301 is in open mode, it makes described oil pipe 1 and sleeve pipe 2 be interconnected.When carrying out described reservoir reconstruction operation, if improve infusion pressure, then sleeve pipe 2 meeting and Jet injector 3 bear identical high pressure, easily affect the working life of sleeve pipe 2, even cause the accident.After described reservoir reconstruction terminates, usually needing by pressurizeing at the annular space of oil pipe 1 and sleeve pipe 2, after being discharged remaining residual night, carrying out closing well.And when the outer by-pass hole 301 of described Jet injector 3 stays open, be just interconnected between described oil pipe 1 and sleeve pipe 2, also just by the mode of applied pressure by annulus, opening or closing operation cannot be carried out.Therefore, existing hydraulic type Jet injector generally can not be taken into account reservoir reconstruction front pump row simultaneously and ask for accurate fluidity, pump row after transformation mesohigh infusion, transformation.
Therefore, be at present badly in need of a kind of desirable Jet injector, can when sleeve pipe bearing capacity be lower, by under enter a set of oil testing tech tubing string and take into account reservoir reconstruction front pump row and ask for accurate fluidity, pump row and protective casing after transformation mesohigh infusion, transformation.
Summary of the invention
The object of this invention is to provide a kind of Jet injector and the oil testing tech based on this Jet injector; can when sleeve pipe bearing capacity be lower; by under enter a set of oil testing tech tubing string can complete perforation, test, Jet injector discharge opeing, high pressure inject, Jet injector discharge opeing five operations; take into account reservoir reconstruction front pump row and ask for accurate fluidity, pump row and protective casing after transformation mesohigh infusion, transformation.
Above-mentioned purpose of the present invention can adopt following technical proposal to realize:
Described pump barrel comprises: upper connection, and it has the two ends up and down along Jet injector axis described in it, and the upper end of described upper connection is used for being connected with described oil pipe, and described upper connection offers the upper pressure transmission hole and middle pressure transmission hole of arranging from top to bottom; First sleeve, it can be set in described upper connection along described Jet injector axially slidably, and form fluid cylinder between described first sleeve and described upper connection, the upper pressure transmission hole of described upper connection is connected with described upper fluid cylinder; Second sleeve, fixed cover is located at outside described first sleeve; 3rd sleeve, the upper end of described 3rd sleeve is between described second sleeve and described upper connection and fixed cover is located in described upper connection, fluid cylinder in being formed between the upper end of described 3rd sleeve and the lower end of described first sleeve, the middle pressure transmission hole of described upper connection is connected with described middle fluid cylinder, lower fluid cylinder is formed between described 3rd sleeve and described second sleeve, described 3rd sleeve offers the lower pressure transmission hole be connected with described lower fluid cylinder, described lower fluid cylinder is equal with the cross-section area of described middle fluid cylinder with described upper fluid cylinder cross-section area sum;
Described 3rd sleeve is provided with at least one Inner eycle hole, described second sleeve is provided with the outer circulation hole that at least one and described Inner eycle hole match; Described second sleeve at least has two working positions, and when the first working position, described Inner eycle hole is corresponding through with described outer circulation hole; When the second working position, described Inner eycle hole and described outer circulation hole are staggered; Described 3rd lower cartridge is provided with axially extended inlet hole for reception formation fluid, and described inlet hole and described lower contact connect; Lower contact, there is screw thread its upper end, is fixedly connected with the lower end of described 3rd sleeve; Described pump core to be seated in described lower contact and to carry out mixing for formation liquid and power fluid and discharge from described Inner eycle hole.
In a preferred embodiment, described 3rd sleeve is the circular cylinder with variable cross section through hole, it comprises: for the linkage section, upper seal section, middle seal section and the lower seal section for being sealed and matched with described pump core that are fixedly connected with described upper connection, and the extension diameter section on described between seal section and middle seal section, the internal diameter of described upper seal section, middle seal section and lower seal section is less than or equal to the internal diameter of described upper connection; Described lower pressure transmission hole is arranged on above the upper seal section of described 3rd sleeve, and the internal diameter of described extension diameter section is more than or equal to the internal diameter of described upper seal section, middle seal section and lower seal section, and the lower end of described lower seal section is fixedly connected with described lower contact; Circular cylinder below the middle seal section of described 3rd sleeve is provided with axial inlet hole, and described Inner eycle hole is not communicated with described inlet hole.
In a preferred embodiment, in described lower contact, taper location unit is provided with.
In a preferred embodiment, between described second sleeve and the 3rd sleeve, also stop pin is provided with.
An oil testing tech for Jet injector, comprising:
S0: by formation testing tubing string, by oil pipe G.I.H;
S1: ignite perforating gun after carrying out perforation prelocalization, complete perforation;
S2: carry out formation testing;
S3: when the Inner eycle hole of Jet injector the 3rd sleeve is opened, drop into pump core in Jet injector, carry out first stage pump row, the pump core in described Jet injector takes out and well-flushing after arranging and terminating by described first stage pump;
S4: carry out high pressure infusion, when the Inner eycle hole of described Jet injector the 3rd sleeve is opened, replaces into injection liquid in cross-section area above Jet injector pump barrel; Then the Inner eycle hole of Jet injector the 3rd sleeve is closed; Carry out high pressure infusion again; After described high pressure infusion, carry out closing well, open flow; The Inner eycle hole of described Jet injector the 3rd sleeve is opened after stop-spraying;
S5: again drop into pump core in Jet injector, carries out second stage pump row.
In a preferred embodiment, described formation testing tubing string comprises and connecting successively from top to bottom: oil pipe, orientation spool, oil pipe, Jet injector, holder rubber bowl, oil pipe, main testing valve, full-bore manometer, bumper jar, safety joint, packet, Axial and radial vibration damper, firing head, perforating gun, pressure releasing means.
In a preferred embodiment, described pump row operation comprises:
When the Inner eycle hole of Jet injector the 3rd sleeve is opened, complete taking a seat of Jet injector core by steel wire or gravity, make the mixture export stating pump core aim at the Inner eycle hole of Jet injector the 3rd sleeve;
Next carry out pressure testing, described pressure test pressure is 15 to 35 MPas;
Then start ground reciprocating pump, in oil pipe, squeeze into power fluid, under continuous effect, flow out the mixed solution carrying stratum liquid from oil jacket annular space;
Through ground tanks separate measurement, obtain profit output.
In a preferred embodiment, the method of closing the Inner eycle hole of described Jet injector the 3rd sleeve comprises: first will be suppressed by steel wire or gravity and fill in seat in Jet injector pump barrel, fill in after between the upper pressure transmission hole that is sealed in described upper connection and middle pressure transmission hole when suppressing, then pressurize in oil pipe, promote described second sleeve to move down, staggered in the Inner eycle hole of the outer circulation hole on described second sleeve and described 3rd sleeve, realize the Inner eycle hole closing described Jet injector pump barrel the 3rd sleeve, then balance suppress beyond the Great Wall below pressure after, trip out and suppress plug;
The method opening the Inner eycle hole of described Jet injector the 3rd sleeve comprises: first will to be suppressed by steel wire or gravity and fill in seat in Jet injector pump barrel by described plug of suppressing, be sealed in after between described middle pressure transmission hole and lower pressure transmission hole when suppressing plug, then pressurize in oil pipe, promote described second sleeve to move up, make the Inner eycle hole radial communication of the outer circulation hole of described second sleeve and described 3rd sleeve, and then realize the Inner eycle hole of opening described Jet injector pump barrel the 3rd sleeve, then balance suppress beyond the Great Wall below pressure after, trip out and suppress plug.
In a preferred embodiment, described main testing valve is the full-port testing valve for carrying out injecting operation.
The features and advantages of the invention are: the invention provides a kind of Jet injector, for existing Jet injector, dependence is suppressed plug cooperation and is added interior pressure-controlled, described second sleeve is made at least to have two working positions, when the first working position, described Inner eycle hole is corresponding through with described outer circulation hole; When the second working position, described Inner eycle hole and described outer circulation hole are staggered, and then the Inner eycle hole repeatedly opening or closing described Jet injector pump barrel the 3rd sleeve can be realized, having does not affect by oil pipe inside and outside differential pressure, can not open by mistake the features such as pass, reliability are high, strong adaptability.Corresponding a kind of perforation-test based on the described Jet injector-pump row-high pressure injection-pump row 5-linked that provides of the present invention makes oil testing tech, by repeatedly opening or closing the Inner eycle hole of pump barrel the 3rd sleeve in work progress, and then be communicated with oil jacket annular space, make under protective casing does not bear the prerequisite of high pressure, one-trip string can be realized and complete perforation, test, Jet injector discharge opeing, high pressure infusion, Jet injector discharge opeing five operations, the complex structural well that sleeve pipe bearing capacity is lower can be solved, be difficult to take into account reservoir reconstruction front pump row in deep-well or inclined shaft formation testing and ask for accurate fluidity, transformation mesohigh infusion, the problem of the row of returning and protective casing fast after transformation, improve reservoir reconstruction effect and data admission quality.
Accompanying drawing explanation
Fig. 1 is the structural representation of Jet injector in prior art;
Fig. 2 is the partial enlarged drawing of Jet injector by-pass hole position in prior art;
Fig. 3 is the structural representation of a kind of Jet injector in the embodiment of the present invention;
Fig. 4 is the A-A schematic cross-section of a kind of Jet injector in the embodiment of the present invention;
Fig. 5 is the B-B revolved sectional view of the pump barrel of a kind of Jet injector in the embodiment of the present invention;
Fig. 6 is a kind of oil testing tech block diagram in the embodiment of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, technological scheme of the present invention is elaborated, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen in the application's claims limited range.
The invention provides a kind of Jet injector, can when sleeve pipe bearing capacity be lower, reliably the opening or closing of control jet pump, thus by under enter a set of oil testing tech tubing string coordinated with it and realize reservoir reconstruction front pump row and ask for accurate fluidity, pump row after transformation mesohigh infusion, transformation.
Of the present invention upper or under be enter after in well for Jet injector, in a state of use, exactly, the position at described Jet injector upper connection place is upper relatively, under the position at lower contact place is relatively.
Please refer to Fig. 3 to Fig. 5, the pump core 7 that described Jet injector is provided with pump barrel 4 and is arranged in described pump barrel 4.
Wherein, as shown in Figure 4,5, be a kind of in embodiment of the present invention B-B revolved sectional view of pump barrel of Jet injector.Described pump barrel 4 comprises: upper connection 41, first sleeve 42, second sleeve 43, the 3rd sleeve 44, lower contact 46.Described first sleeve 42, second sleeve 43, the 3rd sleeve 44 are the cylindrical shell of hollow.The pump barrel 4 with central through bore is defined after described upper connection 41, first sleeve 42, second sleeve 43, the 3rd sleeve 44, the sheathed cooperation of lower contact 46.
The upper end of described upper connection 41 is fixedly connected with oil pipe, and such as, mode by being threaded is fixed.Be tightly connected by slidably mode between the middle part of described upper connection 41 and described first sleeve 42, described first sleeve 42 is set in the periphery of described upper connection 41.The position that such as can coordinate with described first sleeve 42 in described upper connection 41 arranges seal ring.The lower end of described upper connection 41 is connected by thread seal with between described 3rd sleeve 44.The position that such as can coordinate with described 3rd sleeve in described upper connection 41 arranges seal ring.
The upper end of described second sleeve 43 arranges the periphery of described first sleeve 42, and realizes relative fixing by the mode be fixedly connected with described first sleeve 42.The described mode be fixedly connected with can be and is threaded.
Described 3rd sleeve 44 is arranged between described upper connection 41 and the second sleeve 43.The minimum diameter of described 3rd sleeve 44 is less than or equal to the minimum diameter of described upper connection 41, and for best when equaling the minimum diameter of upper connection.
Described lower contact 46 is arranged on the periphery of described 3rd sleeve 44 lower end, and realizes relative fixing by the mode be fixedly connected with described 3rd sleeve 44.The described mode be fixedly connected with can be and is threaded.The extreme lower position that described second sleeve 43 moves down is spacing by the upper-end surface of described lower contact 46, and therefore the extreme lower position of described second sleeve 43 flushes with the upper-end surface of described lower contact 46.The inside of described lower contact 46 is provided with location unit, and described location unit can be taper positioning step 460.Described positioning step 460 can position the mechanism entered in Jet injector pump barrel 4.Such as, when entering described pump core 7 under in described pump barrel 4, the lower end of described pump core 7 snaps in described positioning step 460, thus limited.
Three grades of fluid cylinder mechanisms are formed, for controlling the second sleeve 43 relative to described 3rd sleeve 44 relative movement in described pump barrel 4.Described three grades of fluid cylinders are respectively: upper fluid cylinder 412, middle fluid cylinder 421, lower fluid cylinder 443.
Described upper connection 41 is provided with pressure transmission hole 41a at least one.Described upper pressure transmission hole 41a can be the radial direction through hole formed on the sidewall of described upper connection 41.When described upper pressure transmission hole 41a is multiple, can circumferentially be evenly arranged.In the described upper connection 41 annular space position that coordinate sheathed with described first sleeve 42, form described upper fluid cylinder 412.Described upper pressure transmission hole 41a is used for described central through bore to be communicated with described upper fluid cylinder 412.Fill in after between the upper pressure transmission hole 41a that is sealed in described upper connection 41 and middle pressure transmission hole 41b when suppressing, when injecting liquid in described central through bore, liquid enters in described upper fluid cylinder 412 by described upper pressure transmission hole 41a, under hydraulic pressure, make described first sleeve 42 and the second sleeve 43 of being fixedly connected with it relative to described upper connection 41 slide downward.At the upper-lower position of fluid cylinder 412 on described, be respectively arranged with the first seal ring 51 and the second seal ring 52.Described first seal ring 51 and the second seal ring 52 are for sealing described upper fluid cylinder 412.Described upper connection 41 is also provided with pressure transmission hole 41b at least one, and described middle pressure transmission hole 41b is arranged on below described upper pressure transmission hole 41a.Described middle pressure transmission hole 41b can be the radial direction through hole formed on the sidewall of described upper connection 41.When described middle pressure transmission hole 41b is multiple, can circumferentially be evenly arranged.In the described upper connection 41 annular space position that coordinate sheathed with described second sleeve 43, and the lower end surface of described first sleeve 42, the upper-end surface of the 3rd sleeve 44, form described middle fluid cylinder 421.The cross-section area of described middle fluid cylinder 421 is greater than the cross-section area of described upper fluid cylinder 412.Described middle pressure transmission hole 41b is used for described central through bore to be communicated with described middle fluid cylinder 421.Be sealed in after between described middle pressure transmission hole 41b and lower pressure transmission hole 41c when suppressing plug, when liquid is entered in described middle fluid cylinder 421 by described middle pressure transmission hole 41b, under hydraulic pressure, make described second sleeve 43 and the first sleeve 42 of being fixedly connected with it relative to described upper connection 41 upward sliding.At the upper-lower position of described middle fluid cylinder 421, be respectively arranged with the 3rd seal ring 53 and the 4th seal ring 54.Described 3rd seal ring 53 and the 4th seal ring 54 are for sealing described middle fluid cylinder 421.
Described 3rd sleeve 44 is provided with at least one lower pressure transmission hole 44c, and described lower pressure transmission hole 44c is arranged on the below of described middle pressure transmission hole 41b.Described lower pressure transmission hole 44c can be the radial direction through hole formed on the sidewall of described 3rd sleeve 44.When described lower pressure transmission hole 44c is multiple, can circumferentially be evenly arranged.In the annular space position of described 3rd sleeve 44 and the sheathed cooperation of described second sleeve 43, form described lower fluid cylinder 443.Described lower fluid cylinder 443 is equal with the cross-section area of described middle fluid cylinder 421 with described upper fluid cylinder 412 cross-section area sum.Described lower pressure transmission hole 44c is used for described central through bore to be communicated with described lower fluid cylinder 443.When liquid is entered in described lower fluid cylinder 443 by described lower pressure transmission hole 44c, because described lower fluid cylinder 443 is equal with the cross-section area of described middle fluid cylinder 421 with described upper fluid cylinder 412 cross-section area sum, under hydraulic pressure, the pressure balance of described Jet injector can be kept.At the upper-lower position of described lower fluid cylinder 443, be respectively arranged with the 5th seal ring 55 and the 6th seal ring 56.Described 5th seal ring 55 and the 6th seal ring 56 are for sealing described lower fluid cylinder 443.
On described second sleeve 43, near the position of lower contact 46, be provided with at least one outer circulation hole 431.Described outer circulation hole 431 is the radial direction through hole formed on described second sleeve 43.When the number in described outer circulation hole 431 is multiple, can circumferentially be evenly arranged.
Described 3rd sleeve 44 is for having the circular cylinder of variable cross section through hole.Described 3rd sleeve 44 comprises from top to bottom: linkage section 44A, upper seal section 44B, extension diameter section 44D, middle seal section 44E, lower seal section 44F.Described linkage section 44A is used for being fixedly connected with described upper connection 41.The described mode be fixedly connected with can be and is threaded.The internal diameter of described upper seal section 44B, middle seal section 44E, lower seal section 44F is less than or equal to the internal diameter of described upper connection 41.Described upper seal section 44B, middle seal section 44E, lower seal section 44F are respectively used to and described pump core 7 corresponding matching.Described lower pressure transmission hole 44c can be arranged on the upper seal section 44B of described 3rd sleeve 44.Correspondingly, the upper-lower position of described lower pressure transmission hole 44c is provided with the groove for installing seal ring.The internal diameter of described extension diameter section 44D is more than or equal to the internal diameter of described upper seal section 44B, middle seal section 44E and lower seal section 44F, when intensity is enough, the internal diameter of described extension diameter section 44D can be enough large, is beneficial to the liquid flowing into its inside fully to mix.Described lower seal section 44F is used for and pump core 7 coordinates, and its lower end is fixedly connected with described lower contact 46.As shown in Figure 4, the circular cylinder of described below extension diameter section 44D is provided with axial inlet hole 440.Described inlet hole 440 is for sucking formation fluid.Described inlet hole 440 can be multiple, such as, be 12.Described multiple inlet hole 440 can circumferentially be evenly arranged.On described 3rd sleeve 44, near the position of lower contact 46, be provided with at least one Inner eycle hole 441.Described Inner eycle hole 441 is the radial direction through hole formed on described 3rd sleeve 44.The number in described Inner eycle hole 441 and arranging and the matching of described outer circulation hole 431, to ensure when described outer circulation hole 431 can be interconnected with Inner eycle hole 441, but described Inner eycle hole 441 is not mated with described inlet hole 440 and is communicated with.During the opening and closing in the Inner eycle hole 441 of described Jet injector pump barrel 4 the 3rd sleeve 44 by Jet injector kit suppress that plug realizes.Described plug of suppressing can move by control second sleeve 43 position changing its relative 3rd sleeve 44, and then whether the Inner eycle hole 441 carrying out control jet pump pump barrel 4 the 3rd sleeve 44 opens.
During the opening and closing in the Inner eycle hole 441 of described Jet injector pump barrel 4 the 3rd sleeve 44 by Jet injector kit suppress that plug realizes.Described plug of suppressing can be moved by control second sleeve 43 and changes the position of its relative 3rd sleeve 44, and then to carry out on control jet pump pump barrel 4 inner-outer circulation hole 441 whether radial communication.
The operating method of closing the Inner eycle hole 441 of described Jet injector pump barrel 4 the 3rd sleeve 44 is: first suppress plug in Jet injector pump barrel 4 by steel wire or gravity to described sending to, described in suppress plug lower end located by described lower contact 46 location unit 460; Fill in after between the upper pressure transmission hole 41a that is sealed in described upper connection 41 and middle pressure transmission hole 41b when suppressing, then pressurize in oil pipe, pressure enters upper fluid cylinder 412 by described upper pressure transmission hole 41a, and then promote described first sleeve 42 and the second sleeve 43 moves down, staggered with the Inner eycle hole 441 of described 3rd sleeve 44 in outer circulation hole 431 on described second sleeve 43, and then realize the Inner eycle hole 441 closing described Jet injector pump barrel 4 the 3rd sleeve 44.Then by continuing the mode of pressurization, make the upper and lower end space pressure balance suppressing plug, last available steel wire or backwash mode are pulled out and are suppressed plug.
The operating method opening the Inner eycle hole 441 of described Jet injector pump barrel 4 the 3rd sleeve 44 is: with the operating method in described closedown Inner eycle hole 441 unlike: first by steel wire or gravity to described send to suppress fill in in Jet injector pump barrel 4.The described lower end suppressing plug is located by described lower contact 46 location unit 460.Seal up after between described middle pressure transmission hole 41b and lower pressure transmission hole 41c when suppressing plug, then pressurize in oil pipe, pressure enters middle fluid cylinder 421 by described upper pressure transmission hole 41a, and then promote described first sleeve 42 and the second sleeve 43 moves up, make Inner eycle hole 441 radial communication of outer circulation hole on described second sleeve 43 431 and described 3rd sleeve 44, and then realize the Inner eycle hole 441 of opening described Jet injector pump barrel 4 the 3rd sleeve 44.Then by continuing the mode of pressurization, make the upper and lower end space pressure balance suppressing plug, last available steel wire or backwash mode are pulled out and are suppressed plug.
Be Spielpassung between described 3rd sleeve 44 and the second sleeve 43.Also stop pin 45 can be provided with between described second sleeve 43 and the 3rd sleeve 44.When under described pump barrel 4 lower going-into-well, described stop pin 45 is convenient to enter under after the outer circulation hole 431 of described second sleeve 43 and Inner eycle hole 441 axial alignment of described 3rd sleeve 44; Under in the process that enters time, can prevent from relatively rotating between described second sleeve 43 and the 3rd sleeve 44, can prevent described pump barrel 4 from the process under lower going-into-well, misoperation occurring simultaneously.When after the action under described pump barrel 4 completes lower going-into-well, its tubing string formed with oil pipe etc. in well is just relative motionless, again misoperation can not occur, and when described Jet injector first time opens, described stop pin is cut off.
Described pump core 7 and current existing pump cored structure and principle similar.Described pump core 7 comprises sealed department, middle sealed department and sealing portion.Described upper, middle and lower sealed department can be corresponding with upper seal section 44B, the extension diameter section 44D of described 3rd sleeve 44, lower seal section 44F respectively.The bottom of described pump core 7 is provided with mixture export 701, Inner eycle hole 441 radially aligned of described mixture export 701 and described pump barrel 4 the 3rd sleeve 44.The bottom of described pump core 7, the position of described mixture export less than 701 arranges the passage 703 for introducing formation fluid.Described passage 703 is communicated with the inlet hole 440 of described 3rd sleeve.Described Jet injector pump core 7 lower end is provided with orientational cone-shaped surface 702, and when entering pump barrel 4 under it, described orientational cone-shaped surface 702 arrives the taper positioning step 460 of the 3rd sleeve 43, thus completes taking a seat of Jet injector core 7.
During described Jet injector work, such as, when needing to carry out discharge opeing by the mode of just arranging, when the Inner eycle hole 441 of Jet injector pump barrel 4 is opened, in described Jet injector pump barrel 4, Jet injector pump core 7 is sent into by steel wire or gravity, make the orientational cone-shaped surface 702 of Jet injector pump core 7 lower end arrive the taper positioning step 460 of the 3rd sleeve 43, complete taking a seat of Jet injector core 7.The described mode by entering under gravity can by pressurizeing in oil pipe, increases a downward auxiliary liquid pressure, particularly for lower curved section, described pump core 7 can be made to take a seat more reliably sooner.
After described pump core completes and takes a seat, its upper, middle and lower portion sealed department aim at respectively Jet injector pump barrel 4 the 3rd sleeve 44 upper, middle and lower seal section, the mixture export 701 of described pump core 7 aims at the Inner eycle hole 441 of Jet injector pump barrel 7, thus defines the condition of Jet injector discharge opeing.Now, in the oil pipe above described pump core 7 top sealed portion and pump in-core nozzle more than 71 space is power fluid region; The annular space of described pump core 7 and oil pipe and be in, region is the formation fluid region sucked between middle hermetic unit, described pump core 7 inner throat pipe 72 with the region beyond lower area and mixture export for mixed solution region.
Next first pressure testing can be carried out, described pressure test pressure is 15 to 35 MPas, after discharge opeing starts, power fluid is squeezed in oil pipe, power fluid enters in described pump core 7, mix in described mixed solution region with the stratum liquid flowed in described 3rd cylindrical shell 44, and then enter oil jacket annular space from the mixture export 701 of described radial communication, Inner eycle hole 441, outer circulation hole 431 outflow.Under continuous effect, flow out the mixed solution carrying stratum liquid from oil jacket annular space, profit output can be obtained after ground tanks separate measurement.
The invention provides a kind of Jet injector, dependence is suppressed plug cooperation and is added interior pressure-controlled, and make described second sleeve 43 at least have two working positions, when the first working position, described Inner eycle hole 441 is corresponding through with described outer circulation hole 431; When the second working position, described Inner eycle hole 441 is staggered with described outer circulation hole 431, thus realize repeatedly opening or closing the Inner eycle hole 441 of described Jet injector pump barrel 4 the 3rd sleeve 44, having does not affect by oil pipe inside and outside differential pressure, can not open by mistake the features such as pass, reliability are high, strong adaptability.
Based on the described Jet injector realizing the Inner eycle hole 441 repeatedly opening or closing described Jet injector pump barrel 4 the 3rd sleeve 44, present invention also offers the oil testing tech that a kind of 5-linked is done, comprise perforation-test-pump row-high pressure infusion-pump row, refer to Fig. 6, specifically comprise the following steps:
S0: by formation testing tubing string, by oil pipe G.I.H;
S1: ignite perforating gun after carrying out perforation prelocalization, complete perforation;
S2: carry out formation testing;
S3: when the Inner eycle hole of Jet injector the 3rd sleeve is opened, drop into pump core in Jet injector, carry out first stage pump row, the pump core in described Jet injector takes out and well-flushing after arranging and terminating by described first stage pump;
S4: carry out high pressure infusion, when the Inner eycle hole of described Jet injector the 3rd sleeve is opened, replaces into injection liquid in cross-section area above Jet injector pump barrel; Then the Inner eycle hole of Jet injector the 3rd sleeve is closed; Carry out high pressure infusion again; After described high pressure infusion, carry out closing well, open flow; The Inner eycle hole of described Jet injector the 3rd sleeve is opened after stop-spraying;
S5: again drop into pump core in Jet injector, carries out second stage pump row.
Wherein, the tubing string of formation testing described in S0 comprises and connecting successively from top to bottom: oil pipe, orientation spool, oil pipe, Jet injector, holder rubber bowl, oil pipe, main testing valve, full-bore manometer, bumper jar, safety joint, packet, Axial and radial vibration damper, firing head, perforating gun, pressure releasing means.
By surveying gamma and putting magnetic curve in S1, carry out perforation prelocalization, make perforating gun aim at perforation layer, departure scope is at ± 20 centimetres.Then adjust well head tap, set packer, installation production tree, ignite perforating gun, and then complete perforation operation.
S2: carry out formation testing, specifically according to test request, the formation testing carrying out being correlated with, the sampling of line correlation of going forward side by side, analysis.During described test, be by the mode in applied pressure by annulus 5 to 20 MPa, operate opening or closing of main testing valve, to complete test.
After completing described test, carry out final shut-in operation.
After described final shut-in operation terminates, in applied pressure by annulus 5 to 20 MPa, winner's testing valve is made to be in open mode.
S3: when the Inner eycle hole 441 of Jet injector the 3rd sleeve is opened, drop into pump core 7 in Jet injector, carry out first stage pump row.
Described pump row operation comprises: when the Inner eycle hole 441 of Jet injector the 3rd sleeve 44 is opened, complete taking a seat of Jet injector core 7 by steel wire or gravity, makes the mixture export stating pump core 7 aim at the Inner eycle hole 441 of Jet injector pump barrel 4;
Next carry out pressure testing, described pressure test pressure is 15 to 35 MPas;
Then start surface pump, in oil pipe, squeeze into power fluid, under continuous effect, flow out the mixed solution carrying stratum liquid from oil jacket annular space;
Through ground tanks separate measurement, obtain profit output.
Described first stage pump pulls the pump core 7 in Jet injector out and well-flushing after arranging and terminating;
S4: carry out high pressure infusion.The infusion of high pressure described in S4 operation comprises: when the Inner eycle hole 441 of Jet injector the 3rd sleeve 44 is opened, replace into injection liquid above Jet injector pump barrel 4 in cross-section area, then closes the Inner eycle hole 441 of Jet injector the 3rd sleeve 44, then carries out high pressure infusion.After completing high pressure infusion, carry out closing well, open flow.
After stop-spraying, open the Inner eycle hole 441 of Jet injector the 3rd sleeve 44.
S5: again drop into pump core in Jet injector, carries out second stage pump row.
Throw Jet injector pump core 7, send pump core 7 to take a seat, then carry out Jet injector discharge opeing, ask products, sampling, analysis.
After described second stage pump row terminates, drag for (or backwash) exit flow pump pump core, carry out washing kill-job, unload production tree, dress blowout preventer, trip out perforation-test in well-pump row-high pressure injection-pump and arrange five axle-linked cable-car, terminate construction.
The operating method of closing the Inner eycle hole 441 of described Jet injector the 3rd sleeve 44 is: first fill in seat in Jet injector pump barrel 4 by steel wire or gravity to described suppressing, described in suppress plug lower end located by described lower contact 46 location unit 460; Fill in after between the upper pressure transmission hole 41a that is sealed in described upper connection 41 and middle pressure transmission hole 41b when suppressing, then pressurize in oil pipe, pressure enters upper fluid cylinder 412 by described upper pressure transmission hole 41a, and then promote described first sleeve 42 and the second sleeve 43 moves down, staggered with the Inner eycle hole 441 of described 3rd sleeve 44 in outer circulation hole 431 on described second sleeve 43, and then realize the Inner eycle hole 441 closing described Jet injector pump barrel 4 the 3rd sleeve 44.Then by continuing the mode of pressurization, make the upper and lower end space pressure balance suppressing plug, last available steel wire or backwash mode are pulled out and are suppressed plug.
The operating method opening the Inner eycle hole 441 of described Jet injector the 3rd sleeve 44 is: with the operating method in described closedown Inner eycle hole 441 unlike: first by steel wire or gravity, described suppressing is filled in seat in Jet injector pump barrel 4.The described lower end suppressing plug is located by described lower contact 46 location unit 460.Seal up after between described middle pressure transmission hole 41b and lower pressure transmission hole 41c when suppressing plug, then pressurize in oil pipe, pressure enters middle fluid cylinder 421 by described upper pressure transmission hole 41a, and then promote described first sleeve 42 and the second sleeve 43 moves up, make Inner eycle hole 441 radial communication of outer circulation hole on described second sleeve 43 431 and described 3rd sleeve 44, and then realize the Inner eycle hole 441 of opening described Jet injector pump barrel 4 the 3rd sleeve 44.Then by continuing the mode of pressurization, make the upper and lower end space pressure balance suppressing plug, last available steel wire or backwash mode are pulled out and are suppressed plug.
At the oil testing tech work progress that perforation-test-pump row-high pressure injection-pump row 5-linked is done, connect tubing string, perforation prelocalization, perforation, the main testing valve of test switching manipulation, packer pressure test, infusion construction when washing kill-job, reservoir reconstruction, remove the operation such as Jet injector core, Jet injector discharge opeing, under these professional those skilled in the art instruct, operating worker just can complete construction.
The oil testing tech that a kind of perforation-test of the present invention-pump row-high pressure injection-pump row 5-linked is done, is adapted in shallow well, deep-well and Wells.Owing to making process in perforation-test-pump row-high pressure injection-pump row 5-linked, the Inner eycle hole 441 of described 3rd sleeve 44 needs constantly repeatedly to switch between opened and closed conditions, wherein: wash, kill-job, Jet injector discharge opeing, need the Inner eycle hole 441 of the 3rd sleeve 44 to be in open mode for the operation such as injection liquid, trip-out, and the operations such as lower tubular column, school are dark, perforation, test, infusion need the Inner eycle hole 441 of the 3rd sleeve 44 to be in closed condition.Especially when need by cross-section area above the Inner eycle hole 441 of the 3rd sleeve 44 for infusion liquid time, need the Inner eycle hole 441 of first opening the 3rd sleeve 44, close again after terminating for liquid; When carrying out formal infusion operation to stratum, need keep the Inner eycle hole 441 of closedown the 3rd sleeve 44, protective casing does not bear infusion high pressure, and therefore this Jet injector pump barrel 4 also solves simultaneously and bears the problems such as infusion high pressure for liquid difficulty and sleeve pipe.Solve pointedly sleeve pipe that connection in the past does to cause after oil testing tech uses hydraulic pressure disposable switch sliding sleeve Jet injector have to bear high pressure easily cause the accident, affect Service Life of Casing, infusion pressure limited influence reservoir reconstruction effect and transformation after can not realize the series of problems such as underground switch well.
After Jet injector of the present invention is applied to the oil testing tech of perforation-test-pump row-high pressure injection-pump row 5-linked work, to can be used for realizing in formation testing after reservoir reconstruction front pump row, reservoir reconstruction mesohigh infusion and reservoir reconstruction the row of returning, underground switch well fast, be conducive to improving reservoir reconstruction effect and and data enroll quality.
5-linked work arranged by the perforation-test-pump row-high pressure injection-pump that present invention achieves in the lower labyrinth deep-well of full-scale sleeve pipe, bearing capacity that engineers and technicians for a long time thirst for realizing or high angle hole formation testing, efficiency of construction is high, wide accommodation, easy to operate, reliability, success rate are high, are a novelty, advanced person, practical new design.
The foregoing is only several embodiments of the present invention, although the mode of execution disclosed by the present invention as above, the mode of execution that described content just adopts for the ease of understanding the present invention, is not intended to limit the present invention.Any those skilled in the art; under the prerequisite not departing from the spirit and scope disclosed by the present invention; any amendment and change can be done on the formal of mode of execution and details; but scope of patent protection of the present invention, the scope that still must define with appended claims is as the criterion.

Claims (9)

1. a Jet injector, is made up of pump barrel and pump core, it is characterized in that:
Described pump barrel comprises:
Upper connection, it has the two ends up and down along Jet injector axis described in it, and the upper end of described upper connection is used for being connected with described oil pipe, and described upper connection offers the upper pressure transmission hole and middle pressure transmission hole of arranging from top to bottom;
First sleeve, it can be set in described upper connection along described Jet injector axially slidably, and form fluid cylinder between described first sleeve and described upper connection, the upper pressure transmission hole of described upper connection is connected with described upper fluid cylinder;
Second sleeve, fixed cover is located at outside described first sleeve;
3rd sleeve, the upper end of described 3rd sleeve is between described second sleeve and described upper connection and fixed cover is located in described upper connection, fluid cylinder in being formed between the upper end of described 3rd sleeve and the lower end of described first sleeve, the middle pressure transmission hole of described upper connection is connected with described middle fluid cylinder, lower fluid cylinder is formed between described 3rd sleeve and described second sleeve, described 3rd sleeve offers the lower pressure transmission hole be connected with described lower fluid cylinder, described lower fluid cylinder is equal with the cross-section area of described middle fluid cylinder with described upper fluid cylinder cross-section area sum;
Described 3rd sleeve is provided with at least one Inner eycle hole, described second sleeve is provided with the outer circulation hole that at least one and described Inner eycle hole match;
Described second sleeve at least has two working positions, and when the first working position, described Inner eycle hole is corresponding through with described outer circulation hole; When the second working position, described Inner eycle hole and described outer circulation hole are staggered;
Described 3rd lower cartridge is provided with axially extended inlet hole for reception formation fluid, and described inlet hole and described lower contact connect;
Lower contact, there is screw thread its upper end, is fixedly connected with the lower end of described 3rd sleeve;
Described pump core is seated in and carries out mixing in described lower contact and for formation liquid and power fluid and from described Inner eycle hole
Discharge.
2. Jet injector as claimed in claim 1, it is characterized in that: described 3rd sleeve is the circular cylinder with variable cross section through hole, it comprises: for the linkage section, upper seal section, middle seal section and the lower seal section for being sealed and matched with described pump core that are fixedly connected with described upper connection, and the extension diameter section on described between seal section and middle seal section, the internal diameter of described upper seal section, middle seal section and lower seal section is less than or equal to the internal diameter of described upper connection; Described lower pressure transmission hole is arranged on above the upper seal section of described 3rd sleeve, and the internal diameter of described extension diameter section is more than or equal to the internal diameter of described upper seal section, middle seal section and lower seal section, and the lower end of described lower seal section is fixedly connected with described lower contact; Circular cylinder below the middle seal section of described 3rd sleeve is provided with axial inlet hole, and described Inner eycle hole is not communicated with described inlet hole.
3. Jet injector as claimed in claim 1, is characterized in that: in described lower contact, be provided with taper location unit.
4. Jet injector as claimed in claim 1, is characterized in that: between described second sleeve and the 3rd sleeve, be also provided with stop pin.
5. based on an oil testing tech for the Jet injector one of Claims 1-4 Suo Shu, it is characterized in that, comprising:
S0: by formation testing tubing string, by oil pipe G.I.H;
S1: ignite perforating gun after carrying out perforation prelocalization, complete perforation;
S2: carry out formation testing;
S3: when the Inner eycle hole of Jet injector the 3rd sleeve is opened, drop into pump core in Jet injector, carry out first stage pump row, the pump core in described Jet injector takes out and well-flushing after arranging and terminating by described first stage pump;
S4: carry out high pressure infusion, when the Inner eycle hole of described Jet injector the 3rd sleeve is opened, replaces into injection liquid in cross-section area above Jet injector pump barrel; Then the Inner eycle hole of Jet injector the 3rd sleeve is closed; Carry out high pressure infusion again; After described high pressure infusion, carry out closing well, open flow; The Inner eycle hole of described Jet injector the 3rd sleeve is opened after stop-spraying;
S5: again drop into pump core in Jet injector, carries out second stage pump row.
6. oil testing tech as claimed in claim 5, is characterized in that: described formation testing tubing string comprises and connecting successively from top to bottom: oil pipe, orientation spool, oil pipe, Jet injector, holder rubber bowl, oil pipe, main testing valve, full-bore manometer, bumper jar, safety joint, packet, Axial and radial vibration damper, firing head, perforating gun, pressure releasing means.
7. oil testing tech as claimed in claim 5, is characterized in that, described pump row operation comprises:
When the Inner eycle hole of Jet injector the 3rd sleeve is opened, complete taking a seat of Jet injector core by steel wire or gravity, make the mixture export stating pump core aim at the Inner eycle hole of Jet injector the 3rd sleeve;
Next carry out pressure testing, described pressure test pressure is 15 to 35 MPas;
Then start ground reciprocating pump, in oil pipe, squeeze into power fluid, under continuous effect, flow out the mixed solution carrying stratum liquid from oil jacket annular space;
Through ground tanks separate measurement, obtain profit output.
8. oil testing tech as claimed in claim 5, it is characterized in that, the method of closing the Inner eycle hole of described Jet injector the 3rd sleeve comprises: first will be suppressed by steel wire or gravity and fill in seat in Jet injector pump barrel, fill in after between the upper pressure transmission hole that is sealed in described upper connection and middle pressure transmission hole when suppressing, then pressurize in oil pipe, promote described second sleeve to move down, staggered in the Inner eycle hole of the outer circulation hole on described second sleeve and described 3rd sleeve, realize the Inner eycle hole closing described Jet injector pump barrel the 3rd sleeve, then balance suppress beyond the Great Wall below pressure after, trip out and suppress plug,
The method opening the Inner eycle hole of described Jet injector the 3rd sleeve comprises: first will to be suppressed by steel wire or gravity and fill in seat in Jet injector pump barrel by described plug of suppressing, be sealed in after between described middle pressure transmission hole and lower pressure transmission hole when suppressing plug, then pressurize in oil pipe, promote described second sleeve to move up, make the Inner eycle hole radial communication of the outer circulation hole of described second sleeve and described 3rd sleeve, and then realize the Inner eycle hole of opening described Jet injector pump barrel the 3rd sleeve, then balance suppress beyond the Great Wall below pressure after, trip out and suppress plug.
9. oil testing tech as claimed in claim 6, is characterized in that: described main testing valve is the full-port testing valve for carrying out injecting operation.
CN201410498084.6A 2014-09-25 2014-09-25 Jet pump and oil testing tech based on this jet pump Active CN104454669B (en)

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CN106988731A (en) * 2017-06-02 2017-07-28 韩克楚 Horizontal oil-water well concentric tube column underground dynamic checkout unit and method
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CN108868698A (en) * 2018-06-13 2018-11-23 中国石油化工股份有限公司华东油气分公司采油气工程服务中心 A kind of normal pressure shale gas well single tube jet pump fluid-discharge technology method
CN112302577A (en) * 2019-07-29 2021-02-02 中国石油化工股份有限公司 Jet pump drainage device and tubular column
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CN115234227A (en) * 2022-09-21 2022-10-25 廊坊市华海石油技术开发有限公司 Liquid drainage pipe column structure and stratum testing method based on same
CN116291332A (en) * 2023-05-24 2023-06-23 山东成林石油工程技术有限公司 Annular spraying type anti-wear scale-inhibiting underground jet flow drainage device and use method thereof

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JP2004197648A (en) * 2002-12-18 2004-07-15 Maezawa Ind Inc Jet pump type transfer device
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CN104895541A (en) * 2015-04-13 2015-09-09 中国石油天然气股份有限公司 Method for breaking interlayer in oil layer during double horizontal well SAGD exploitation
CN106988731A (en) * 2017-06-02 2017-07-28 韩克楚 Horizontal oil-water well concentric tube column underground dynamic checkout unit and method
CN106988731B (en) * 2017-06-02 2023-07-21 韩克楚 Underground dynamic testing device and method for concentric pipe columns of horizontal oil-water well
CN108412427A (en) * 2018-02-09 2018-08-17 武汉理工大学 High confining pressure water jet experimental rig
CN108868698A (en) * 2018-06-13 2018-11-23 中国石油化工股份有限公司华东油气分公司采油气工程服务中心 A kind of normal pressure shale gas well single tube jet pump fluid-discharge technology method
CN112302577A (en) * 2019-07-29 2021-02-02 中国石油化工股份有限公司 Jet pump drainage device and tubular column
CN112302577B (en) * 2019-07-29 2022-07-01 中国石油化工股份有限公司 Jet pump drainage device and tubular column
CN114562235A (en) * 2022-02-07 2022-05-31 中海油能源发展股份有限公司 Offshore oilfield heavy oil well steam injection and jet flow integrated process system and production method thereof
CN115234227A (en) * 2022-09-21 2022-10-25 廊坊市华海石油技术开发有限公司 Liquid drainage pipe column structure and stratum testing method based on same
CN115234227B (en) * 2022-09-21 2022-12-13 廊坊市华海石油技术开发有限公司 Liquid drainage pipe column structure and stratum testing method based on same
CN116291332A (en) * 2023-05-24 2023-06-23 山东成林石油工程技术有限公司 Annular spraying type anti-wear scale-inhibiting underground jet flow drainage device and use method thereof
CN116291332B (en) * 2023-05-24 2023-07-21 山东成林石油工程技术有限公司 Annular spraying type anti-wear scale-inhibiting underground jet flow drainage device and use method thereof

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