CN218598199U - Horizontal well integrated liquid production profile testing device - Google Patents
Horizontal well integrated liquid production profile testing device Download PDFInfo
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- CN218598199U CN218598199U CN202222353960.9U CN202222353960U CN218598199U CN 218598199 U CN218598199 U CN 218598199U CN 202222353960 U CN202222353960 U CN 202222353960U CN 218598199 U CN218598199 U CN 218598199U
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Abstract
The utility model provides a liquid section testing arrangement is produced in horizontal well integration belongs to liquid section test technical field. The testing device comprises a testing pipe column, wherein the testing pipe column comprises an oil pipe, a guide cone, a sieve pipe, a packer and a hollow suction pump, wherein the guide cone, the sieve pipe, the packer and the hollow suction pump are connected with the oil pipe; the hollow suction pump comprises an inner pipe, an outer pipe and a hollow plunger, wherein the lower end of the inner pipe is open, the upper end of the inner pipe is connected with an oil pipe, the lower end of the outer pipe is connected with the oil pipe, and the upper end of the outer pipe is connected with the oil pipe through a safety joint; the testing device also comprises a testing instrument with a cable, and the cable penetrates through the oil pipe, the central pipe of the packer and the inner pipe of the hollow suction pump and extends to the wellhead. The pipe column structure and the construction process of the utility model are simple, easy to operate and low in cost; the oil pipe is preset in the sleeve, and the test instrument is taken up and down and the test work is carried out in the oil pipe, so that the drill sticking risk is low, the construction is safe, the oil sleeve annulus and the flow rate in the oil pipe are increased, and the test precision is improved; and the cable is always positioned in the oil pipe and the parts, so that the cable can be well protected.
Description
Technical Field
The utility model relates to a liquid section testing arrangement is produced in horizontal well integration belongs to liquid section test technical field.
Background
The horizontal well is one of the important ways of realizing the industrial development of the current compact sandstone reservoir. The tight sandstone reservoir is influenced by natural factors such as cracks, faults and the like and artificial cracks, and water on the same layer, water on the bottom side and laterally injected water of the reservoir suddenly enter along the cracks and the faults in the production process, so that water channeling and water content sudden rising of an oil well are caused, and the productivity of the oil well is seriously influenced. In order to know the conditions of liquid production and water production of each section of the horizontal well and optimize the reservoir transformation process and water plugging and controlling measures, each oil field in China carries out a cross-sectional test on the liquid production section testing technology of the horizontal well, so as to explore a high-efficiency, low-cost and high-precision testing process technology suitable for different liquid production amounts of the horizontal well.
The production characteristics of the tight sandstone reservoir oil well are low pressure and low yield, and the liquid production capacity of each section of the horizontal well is lower and exceeds the lower limit of the flow test of a conventional test instrument. Meanwhile, the horizontal well is limited by sand production, scaling and a well body structure, the well condition of a horizontal section is complex, the risk of tripping and sticking of a conventional testing instrument is high, and the whole well section test cannot be smoothly realized. At present, the production and section testing process of the mainstream horizontal well of each oil field mainly utilizes conveying processes such as a chamfer oil pipe, a continuous oil pipe, a crawler and water power, adopts testing technologies such as mechanical clamping, a tracer, a distributed optical fiber, a turbine flowmeter, fluid scanning imaging and neutron oxygen activation, and performs section-by-section production and section testing of the horizontal well through liquid drainage modes such as oil well self-injection, nitrogen gas lift and mechanical pumping. The horizontal wells with different liquid production amounts, different well structures and different well conditions have certain limitations in various testing processes, and the testing cost is high, the operation risk is large and the testing precision is low.
For example, the utility model discloses a chinese utility model patent that the grant bulletin number is CN205858329U discloses a horizontal well dragging type produces liquid section test tubular column, including oil pipe and sleeve pipe, oil pipe is located the sleeve pipe, and all includes horizontal segment and vertical section, has the direction plug from toe to heel in the oil pipe horizontal segment in proper order, the eye-tube, production section tester, communicating pipe one and communicating pipe two, be equipped with the oil-well pump in the oil pipe vertical section, be connected with the cable on the production section tester, and the cable is connected to the wellhead assembly through the tee bend stand pipe that the oil-well pump bottom set up in the oil pipe vertical section. The horizontal section of sheathed tube is equipped with a plurality of perforation sections, and this test string adopts preset production profile tester in oil pipe, drags the cable to drive the production profile tester and surveys the liquid production volume and the water content in different composite interval respectively through in the oil pipe during the test, and ground need not artifical measurement, and cable real-time transmission data, real-time analysis in time knows each production interval liquid production information of horizontal well, provides the foundation for horizontal well water injection development adjustment and later stage water shutoff.
However, the cable in the above patent is connected to the wellhead equipment through the three-way guide pipe arranged at the bottom of the oil well pump, that is, the cable above the three-way guide pipe is located in the air of the oil jacket ring, so that the cable in the air of the oil jacket ring has risks of being squeezed and scratched in the process of lowering the well and lifting the cable to perform a liquid production profile test, the safety is very poor, and once the cable is damaged or broken, the smooth performance of the test work can be influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a horizontal well integration produces liquid section testing arrangement to the cable of solving among the prior art is located the oil lantern ring aloft and leads to the well in-process cable of going into the well and lift the cable and carry out the in-process cable that produces liquid section test is crowded wounded and scratch easily, and then leads to the cable damaged or cracked problem to appear.
In order to achieve the above object, the utility model provides a horizontal well integration production profile testing arrangement adopts following technical scheme:
a horizontal well integrated liquid production section testing device comprises a testing pipe column, wherein the testing pipe column comprises an oil pipe, a guide cone, a sieve pipe, a packer and a hollow suction pump, wherein the guide cone, the sieve pipe, the packer and the hollow suction pump are connected with the oil pipe; the hollow suction pump comprises an inner pipe, an outer pipe and a hollow plunger which is arranged in an annular space between the inner pipe and the outer pipe and is fixedly connected with the inner pipe, the lower end of the inner pipe is open, the upper end of the inner pipe is connected with an oil pipe, the lower end of the outer pipe is connected with the oil pipe, the upper end of the outer pipe is connected with the oil pipe through a detachable safety joint, a liquid inlet valve fixedly connected with the outer pipe is arranged below the hollow plunger in the annular space, and a liquid outlet valve is arranged at the upper part of the hollow plunger; the horizontal well integrated production profile testing device further comprises a testing instrument with a cable, wherein the testing instrument is used for being arranged in the oil pipe, and the cable penetrates through the oil pipe, a central pipe of a packer and an inner pipe of a hollow suction pump and is used for extending to a wellhead.
The beneficial effects of the above technical scheme are that: the guide cone and the sieve tube can be arranged in the horizontal section of the horizontal well, so that the stratum produced liquid in the horizontal section can conveniently enter the oil pipe through the sieve tube. The packer can hang lower part oil pipe after setting, and anchoring test string prevents that the hollow suction pump from wriggling in the suction process, seals oil jacket annular space simultaneously, makes the extraction fluid can get into annular space above the packer and is lifted to ground. The lower end of the inner pipe of the hollow suction pump is open, the upper end of the inner pipe is connected with an oil pipe, the lower end of the outer pipe is connected with the oil pipe, the upper end of the outer pipe is connected with the oil pipe through a detachable safety joint, and the safety joint can fix the outer pipe and the oil pipe to ensure that the outer pipe and the inner pipe do not move relatively, so that the integral pipe column can be conveniently lowered into the well; meanwhile, the safety joint can be separated, so that after the packer is set, the safety joint is separated, and the oil pipe drives the inner pipe to reciprocate up and down to suck and drain liquid. Because the liquid outlet valve is arranged at the upper part of the hollow plunger, after the safety joint is disconnected, the liquid outlet valve can be communicated with the oil sleeve annulus of the well section above the hollow suction pump, so that when the upper oil pipe lifts the inner pipe to drive the hollow plunger to move upwards, the space among the hollow plunger, the outer pipe, the liquid inlet valve and the inner pipe is increased, the liquid inlet valve is opened, the liquid outlet valve is closed, and the liquid in the lower oil pipe is sucked between the inner pipe and the outer pipe and in the hollow plunger; when upper portion oil pipe transferred the inner tube and driven hollow plunger downstream, the space between hollow plunger, outer tube, feed liquor valve and the inner tube reduces, and the feed liquor valve is closed, goes out the liquid valve and opens, and liquid and the liquid in the hollow plunger between the interior outer tube discharge to the oil lantern ring aloft from going out the liquid valve, and then are lifted to ground.
Meanwhile, a testing instrument with a cable is arranged in the oil pipe, the cable penetrates through the oil pipe, a central pipe of the packer and an inner pipe of the hollow suction pump and is used for extending to the well mouth, so that the testing instrument can be driven to perform liquid production profile testing at the well mouth by lifting the cable, and the cable penetrates through the central pipe of the packer and the inner pipe of the hollow suction pump and is always positioned inside the oil pipe and the parts, so that the cable can be well protected, the situation that a testing pipe column is damaged and scratched when the testing pipe column is in the process of going into the well and when the cable is lifted to perform liquid production profile testing is avoided, the cable is prevented from being damaged or broken, and smooth performance of testing work is guaranteed.
Furthermore, the oil pipe comprises a lower oil pipe arranged in a well section below a deflecting point of the horizontal well and an upper oil pipe arranged in a well section above the deflecting point, and the upper oil pipe is a thickened oil pipe with the wall thickness larger than that of the lower oil pipe.
The beneficial effects of the above technical scheme are that: the structural strength of the oil pipe in the well section above the deflecting point is ensured, and the drill jamming in the well descending process is prevented.
Further, the lower oil pipe is a flat chamfer oil pipe.
The beneficial effects of the above technical scheme are that: further preventing the drill from being stuck in the process of descending the well.
Furthermore, the packer and the hollow suction pump are both connected with the thickened oil pipe, and the inner diameters of the central pipe of the packer and the inner pipe of the hollow suction pump are the same as the inner diameter of the thickened oil pipe.
The beneficial effects of the above technical scheme are that: avoid cable jamming.
Further, the inner diameters of the central pipe of the packer and the inner pipe of the hollow suction pump are larger than the outer diameter of the test instrument.
The beneficial effects of the above technical scheme are that: the test instrument can pass through the test tube conveniently, and then the test instrument can be put into the horizontal section conveniently or taken out of the test tube column conveniently.
Further, the lower end of the inner pipe of the hollow suction pump is provided with an inner chamfer.
The beneficial effects of the above technical scheme are that: the lower port of the inner tube is prevented from being blocked in the process of taking up and taking down the test instrument.
Furthermore, the safety joint is a reverse-buckling safety joint, so that the safety joint is separated from the oil pipe by lifting the oil pipe and rotating forward after the packer is set.
The beneficial effects of the above technical scheme are that: simple structure conveniently realizes breaking away of safe joint and oil pipe.
Further, the integrated production profile testing device of the horizontal well further comprises a wellhead device, wherein the wellhead device comprises a casing four-way joint, a blowout preventer, an oil pipe elevator and an oil pipe three-way joint from bottom to top; the casing four-way is used as a reverse circulation channel and a suction and drainage outlet, and the blowout preventer is used for controlling a wellhead to prevent blowout; the oil pipe elevator is used for lifting the oil pipe to reciprocate up and down so as to drive a hollow plunger of the hollow suction pump to suck and discharge liquid; the oil pipe tee joint is used for connecting a cement truck so as to convey a test instrument to the horizontal section through water injection hydraulic power.
The beneficial effects of the above technical scheme are that: the four-way sleeve facilitates reverse circulation well flushing and unfreezing and formation fluid enters an oil pipe to drain liquid for production; the blowout preventer can control the wellhead to prevent blowout; the oil pipe elevator conveniently drives the hollow suction pump to suck and discharge liquid, so that the production fluid profile test is conveniently carried out; the oil pipe tee joint is used for connecting a cement truck, and can convey a test instrument to a horizontal section through water injection hydraulic power, so that the test instrument can conveniently go into a well.
Further, the wellhead device also comprises a cable blowout preventer arranged above the oil pipe tee joint.
The beneficial effects of the above technical scheme are that: the cable lubricator can seal the cable and control the wellhead to prevent blowout.
Furthermore, the testing instrument is used for descending into the vertical section by utilizing self weight, and the oil pipe tee joint is used for conveying the testing instrument to the horizontal section in the well section below the deflecting point.
The beneficial effects of the above technical scheme are that: the test instrument is lowered into the vertical section by utilizing the dead weight, the operation is convenient, and the manpower and material resources are saved; in the well section below the deflecting point, the test instrument cannot descend by the dead weight, and at the moment, the oil pipe tee joint conveys the test instrument to the horizontal section by water injection waterpower, so that the operation flow can be integrally simplified, and the cost is saved.
Drawings
Fig. 1 is a schematic diagram of the downhole part of the horizontal well integrated fluid production profile testing device of the utility model;
FIG. 2 is a schematic diagram of the operation of the horizontal well integrated fluid production profile testing device of the present invention during transportation of a testing instrument;
fig. 3 is a working schematic diagram of the integrated liquid production profile testing device for the horizontal well of the utility model during the suction and drainage test;
fig. 4 is a schematic structural view of a hollow suction pump of the horizontal well integrated liquid production profile testing device of the present invention;
fig. 5 is the structure schematic diagram of the wellhead device of the horizontal well integrated liquid production profile testing device of the utility model.
In the figure: 1. thickening the oil pipe; 2. a second safety joint; 3. a first safety joint; 4. an inner tube; 4-1, connecting the inner pipe with an upper joint; 4-2, inner chamfer angle; 5. a hollow plunger; 6. an outer tube; 6-1, connecting the outer pipe with a joint; 6-2, lower joint of outer pipe; 7. a vertical section; 8. a sleeve; 9. a packer; 10. a flat chamfer oil pipe; 11. a cable; 12. perforating and fracturing the section and the stratum; 13. a horizontal segment; 14. testing the instrument; 15. a screen pipe; 16. a guide cone; 17. a liquid inlet valve; 18. a liquid inlet hole; 19. a liquid outlet hole; 20. a liquid outlet valve; 21. a cable lubricator; 22. an oil pipe tee joint; 23. a blowout preventer; 24. a sleeve four-way joint; 25. and (4) oil pipe elevator.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, which may be present, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" or the like does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
The utility model discloses well horizontal well integration liquid production section testing arrangement (hereinafter referred to as testing arrangement)'s embodiment 1:
the utility model provides a testing arrangement is arranged in solving the process of going into the well and lifting the cable and producing the problem of liquid section test in-process cable extruded easily and hindering with the scratch, solves horizontal well sanding, bores and mills ball seat and the complicated well horizontal section test of well condition and blocks the problem of boring, meets and hinder the problem, and it is low to solve low liquid measure well test accuracy simultaneously, problem that the test cost is high.
The testing device comprises a testing string which comprises a tubing and a guide cone 16, a screen 15, a packer 9 and a hollow suction pump which are connected with the tubing, as shown in figure 1. The packer 9 and the hollow suction pump are used for being lowered into the vertical section 7 of the horizontal well, the guide cone 16 and the sieve tube 15 are used for being lowered into the horizontal section 13 of the horizontal well, a testing instrument 14 with a cable 11 is arranged in an oil pipe corresponding to the horizontal section 13, and the central pipe of the packer 9 and the hollow suction pump can be used for the testing instrument 14 to pass through.
Specifically, the test instrument 14 is an oxygen activation test instrument, and the lower limit of the flow test of the oxygen activation test instrument is calculated as follows: the external diameters of the prior oxygen activation testing instrument are phi 38mm and phi 43mm, and the length is less than 6m; the test accuracy is as follows:
test flow ranges under different wellbore conditions: the lower limit of the flow rate of the oxygen activation testing instrument is 0.00767m/s.
According to the lower limit of the flow test of the oxygen activation test instrument, an oil pipe is arranged in the sleeve 8, the flow velocity inside and outside the oil pipe is improved, and the production profile test precision of the low-fluid-volume well is improved.
Wherein, oil pipe is including being used for setting up thickening oil pipe 1 in vertical section 7 of horizontal well, still including being arranged in the lower part oil pipe of setting in the well section below the deflecting point A of horizontal well, and lower part oil pipe is flat chamfer oil pipe 10, prevents to block the brill. The pipe diameter of the test pipe column is designed as follows:
(1) the horizontal section of the horizontal well is 4 1 / 2 "casing, then using 2 in the interval below the kick-off point A 3 / 8 The vertical section of the flat chamfer oil pipe adopts a structure 2 7 / 8 "thickened tubing.
(2) The horizontal section of the horizontal well is 5 1 / 2 "casing" by using 2 the well section below the kick-off point 7 / 8 The vertical section of the flat chamfer oil pipe adopts a structure 2 7 / 8 "thickened tubing.
The guide cone 16 is connected to the lower end of the oil pipe, the sieve tube 15 is located above the guide cone 16, the sieve tube 15 is 2m long, the diameter of an aperture is phi 10mm, the sieve tube is communicated with the oil pipe and the oil sleeve annulus, and the sieve tube is used for conveying fluid of the testing instrument 14, the reverse circulation well washing unfreezing and perforation fracturing section and the stratum 12 to the oil pipe for liquid drainage production.
The packer 9 adopts Y421 type packer that has bearing structure, can bear great tensile stress downwards for hang lower part oil pipe, anchoring test string prevents the peristaltic of hollow suction pump suction in-process, seals up the oil jacket annular space simultaneously, is used for the annular space above the production fluid gets into packer 9 to be lifted to ground. The inner diameter of the central tube is phi 62mm, and 2 7 / 8 The inner diameters of the thickened oil pipes are the same, so that the test instrument 14 can be conveniently pulled out and put down, the temperature resistance is more than or equal to 90 ℃, and the pressure difference is 35MPa.
The well descending depth of the hollow suction pump is a vertical section below the working fluid level when the oil well is normally produced, as shown in figures 1 and 4, the hollow suction pump packetComprises an inner tube 4, an outer tube 6 and a hollow plunger 5, wherein the inner tube 4 is equivalent to a central tube of a hollow suction pump, the inner tube 4 adopts the design of the inner drift diameter of the same oil tube, namely the inner diameter of the inner tube 4 is equal to the inner diameter of the inner tube 2 7 / 8 "the inside diameter of the heavy gauge tubing is the same, 62mm, and is used to pull test instrument 14 through inner tube 4. The lower end of the inner pipe 4 is open, the upper end of the inner pipe 4 is connected with an oil pipe, and the upper end of the inner pipe 4 is provided with an inner pipe upper joint 4-1 used for connecting the oil pipe and used for lifting and lowering the upper oil pipe to drive the hollow plunger 5 to reciprocate to suck and discharge liquid. The lower end of the inner tube 4 is provided with an inner chamfer 4-2 to prevent the instrument from being blocked at the lower end opening of the inner tube 4.
As shown in fig. 1 and 4, the lower end of the outer pipe 6 is connected to the oil pipe, and the upper end is connected to the oil pipe through the first releasable safety joint 3, so that the lower end of the outer pipe 6 is provided with an outer pipe lower joint 6-2, and the upper end is provided with an outer pipe upper joint 6-1. The first safety joint 3 can fix the outer pipe 6 and the oil pipe, so that the outer pipe 6 and the inner pipe 4 do not move relatively, and the integral pipe column is convenient to go into a well. And the first safety joint 3 is a reverse-buckled safety joint, and the specific structure and the working principle thereof belong to the prior art, similar to the safety joint in the patent document CN 201991483U. One end of the oil pipe, which is used for being connected with the first safety joint 3 and the inner pipe 4, is provided with a double-thread structure, and the end connected with the first safety joint 3 is a reverse-buckling thread, so that the first safety joint 3 can be separated from the oil pipe through lifting the oil pipe and positively rotating after the packer 9 is set, and the oil pipe can conveniently drive the inner pipe 4 to reciprocate up and down to suck and discharge liquid. In addition, the thickened oil pipe 1 is also connected with a second safety joint 2, which is used for being disconnected when the thickened oil pipe is blocked or blocked, so that the pipe column above the second safety joint 2 can be lifted out of the ground, and the second safety joint 2 also belongs to the prior art, and specifically refers to the safety joint in patent document CN 208981976U.
As shown in fig. 4, the hollow plunger 5 is located in the annular space between the inner tube 4 and the outer tube 6 and is fixedly connected to the inner tube 4 so as to be movable up and down with the inner tube 4. The lower part of the hollow plunger 5 is provided with a liquid inlet hole 18, the upper part of the hollow plunger 5 is provided with a liquid outlet hole 19, the liquid inlet hole 18 is communicated with the inner cavity of the hollow plunger 5 and the annular space between the inner pipe and the outer pipe, and the liquid outlet hole 19 is communicated with the inner cavity of the hollow plunger 5 and the oil sleeve annulus of the well section above the hollow suction pump. A liquid inlet valve 17 fixedly connected with the outer pipe 6 is arranged below the hollow plunger 5 in the annular space, a liquid outlet valve 20 is arranged at a liquid outlet hole 19 in the upper part of the hollow plunger 5, after the first safety joint 3 is disconnected, the liquid outlet valve 20 can be communicated with an oil sleeve annulus in a well section above the hollow suction pump, so that when the inner pipe 4 is lifted by the upper oil pipe to drive the hollow plunger 5 to move upwards, the space between the hollow plunger 5, the outer pipe 6, the liquid inlet valve 17 and the inner pipe 4 is increased, the liquid inlet valve 17 is opened, the liquid outlet valve 20 is closed, and liquid in the lower oil pipe is sucked between the inner pipe 4 and the outer pipe 6 and in the hollow plunger 5. When upper portion oil pipe transferred inner tube 4 and drove hollow plunger 5 and move down, the space between hollow plunger 5, outer tube 6, feed liquor valve 17 and the inner tube 4 reduced, and feed liquor valve 17 is closed, goes out liquid valve 20 and opens, and liquid between the interior outer tube and the liquid in the hollow plunger 5 discharge to the oil lantern ring aloft from going out liquid valve 20, and then are lifted to ground. The concrete working principle of the hollow suction pump can also refer to a hollow oil well pump disclosed in patent document CN1080695A, CN1667273A, CN 204627555U.
The cable 11 of the test instrument 14 passes through the inner pipe of the oil pipe, the packer and the hollow suction pump and extends to the well head, the utility model discloses a test device also comprises a well head device, as shown in fig. 5, the well head device comprises a sleeve four-way 24, a blowout preventer 23, an oil pipe elevator 25, an oil pipe three-way 22 and a cable blowout preventer 21 from bottom to top in sequence, wherein, the sleeve four-way 24 is used as a reverse circulation channel and a suction and drainage outlet, and the blowout preventer 23 and the cable blowout preventer 21 are used for controlling the well head and preventing blowout; the oil pipe elevator 25 is used for lifting the oil pipe to reciprocate up and down so as to drive a hollow plunger of the hollow suction pump to suck and discharge liquid; the tubing tee 22 is used to connect a cement truck to deliver the test instrument 14 to the horizontal section 13 by flooding hydraulics.
Certainly, when the test instrument 14 is conveyed, firstly, the self weight of the test tool string is utilized to be lowered into the vertical section in the oil pipe through the cable 11, when the well section below a deflecting point cannot be lowered by the self weight, the wellhead oil pipe tee 22 is connected with a cement truck for water injection, the casing four-way joint 24 is connected to a production manifold and conveyed to the horizontal section by adopting hydraulic power, the working principle is as shown in fig. 2, and the arrow line in the figure represents the liquid flow direction. The instrument 14 to be tested is conveyed to the bottom of the artificial well, the test pipe column is set, the ground lifting equipment is connected with the oil pipe elevator 25, the pipe column is lifted and lowered, the hollow suction pump is driven to discharge liquid, meanwhile, the test instrument 14 is lifted through the cable 11 to carry out flow test, the working principle is shown in figure 3, and the arrow line in the figure represents the liquid flow direction.
The test device of the embodiment is specific to 5 in specific application 1 / 2 "well for casing cementing completion, the production profile test was performed as follows:
(1) Designing an integrated test pipe column: 5 1 / 2 "the casing inside diameter phi 124.26mm, the test tubular column structure is from bottom to top: guide cone +2 7 / 8 Flat type chamfer angle sieve tube +2 7 / 8 "Flat chamfer oil pipe + Y421 type packer + 3 1 / 2 "hollow suction Pump +2 7 / 8 "thickening the tubing string.
(2) Testing the design of a wellhead: the method comprises the following steps of: casing cross + preventer + oil pipe elevator + oil pipe tee bend + cable lubricator.
(3) A production section test implementation step:
(1) go into integration production section test tubular column in the test well: and (4) according to the designed integrated test pipe column structure, putting the pipe pin into the artificial well bottom.
(2) Hydraulic conveyance test tool string: firstly, a test tool string is put into a well by using a dead weight cable, when the test tool string cannot descend by using the dead weight, one end of a sleeve four-way joint is connected with production flow return liquid, and an oil pipe three-way joint is connected with a cement truck to carry out water injection and hydraulic conveying to a horizontal section.
(3) Suction and drainage and test: the wellhead lifting equipment is connected with the oil pipe elevator and lifted and lowered to drive the hollow suction pump to suck and discharge liquid, and the stratum output liquid enters the oil sleeve annulus through the liquid outlet hole at the upper end of the hollow suction pump and is lifted to the ground. After the produced liquid discharge is stable, the flow rate is tested by lifting the testing instrument through the cable.
The testing device provided by the utility model has simple pipe column structure and construction process, easy operation and lower cost; an oil pipe is preset in the sleeve, and a test instrument is lifted and lowered and is tested in the oil pipe, so that the drill sticking risk is low, and the construction is safe; meanwhile, after the oil pipe is preset in the casing, the oil sleeve annulus and the flow rate in the oil pipe are increased compared with the casing, and the oxygen activation flow testing precision is improved; and the cable passes through the central tube of the packer and the inner tube of the hollow suction pump and is always positioned in the oil tube and the parts, so that the cable can be well protected, the cable is prevented from being extruded and scratched in the process of descending the well and lifting the cable to perform a liquid production profile test, the cable is prevented from being damaged or broken, and the smooth performance of the test work is ensured.
The utility model discloses well horizontal well integration liquid production section testing arrangement's embodiment 2:
the embodiment aims at the well completion with a three-level well body structure, the vertical section is 7' casing well cementation, and the horizontal section is hung 4 1 / 2 "casing and open hole packer, sliding sleeve well, production profile test is performed as follows:
the horizontal well is firstly drilled and milled with a ball seat to dredge the well before the production profile test of the horizontal well, and the horizontal casing is unsmooth due to the fact that the well condition of the horizontal section is complex and steps exist in the horizontal casing. The lower limit of the testing flow rate and the risk of pipe column sticking are comprehensively considered, and the integrated testing pipe column is designed (from bottom to top) as follows: guide cone +2 3 / 8 Flat type chamfer angle sieve tube +2 3 / 8 "Flat chamfer oil pipe + Y421 type packer + 3 1 / 2 "hollow suction Pump +2 7 / 8 "thickening the tubing string. Other design and implementation procedures are the same as those of example 1.
The utility model discloses well horizontal well integration liquid production section testing arrangement's embodiment 3: unlike example 1, the test instrument does not use its own weight to lower the well, but instead relies entirely on water injection hydraulic conveyance.
The utility model discloses well horizontal well integration liquid production section testing arrangement's embodiment 4: unlike example 1, the wellhead did not include a wireline lubricator.
The utility model discloses well horizontal well integration liquid production section testing arrangement's embodiment 5: unlike example 1, the integrated production profile testing device for the horizontal well does not comprise a wellhead device, and the wellhead device is configured by a user.
The utility model discloses well horizontal well integration liquid production section testing arrangement's embodiment 6: unlike embodiment 1, the safety joint is not of the reverse type, but of another type requiring shearing of a pin, for example, the safety joint disclosed in patent document CN 208981976U.
The utility model discloses well horizontal well integration liquid production section testing arrangement's embodiment 7: unlike embodiment 1, the lower end of the inner tube of the hollow suction pump was not provided with an inner chamfer.
The utility model discloses well horizontal well integration liquid production section testing arrangement's embodiment 8: unlike example 1, the inner diameter of the inner tube of the hollow suction pump is larger or smaller than the inner diameter of the thickened oil tube.
The utility model discloses well horizontal well integration produces liquid section testing arrangement's embodiment 9: unlike example 1, the packer has a base pipe inner diameter that is greater than or less than the inner diameter of the thickened tubing.
The utility model discloses well horizontal well integration liquid production section testing arrangement's embodiment 10: different from the embodiment 1, the inner diameters of the central pipe of the packer and the inner pipe of the hollow suction pump are smaller than the outer diameter of the test instrument, at the moment, the test instrument is preset in the oil pipe in advance and goes down the well along with the oil pipe, and the lifting cable is only used for driving the test instrument to carry out the liquid production profile test and is not responsible for lifting out the test instrument.
The utility model discloses well horizontal well integration produces liquid section testing arrangement's embodiment 11: unlike example 1, the lower tubing is not a flat chamfer tubing, but a heavy wall tubing or a full joint tubing.
The utility model discloses well horizontal well integration liquid production section testing arrangement's embodiment 12: unlike example 1, the tubing in the interval above the kick-off point and the interval below the kick-off point were of the same gauge.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, the scope of the present invention is defined by the appended claims, and all the structural changes equivalent to the content of the description and the attached drawings should be included in the same way.
Claims (10)
1. The integrated production profile testing device for the horizontal well is characterized by comprising a testing pipe column, wherein the testing pipe column comprises an oil pipe, a guide cone (16) connected with the oil pipe, a sieve pipe (15), a packer (9) and a hollow suction pump; the hollow suction pump comprises an inner pipe (4), an outer pipe (6) and a hollow plunger (5) which is arranged in an annular space between the inner pipe (4) and the outer pipe (6) and is fixedly connected with the inner pipe (4), wherein the lower end of the inner pipe (4) is open, the upper end of the inner pipe is connected with an oil pipe, the lower end of the outer pipe (6) is connected with the oil pipe, the upper end of the outer pipe is connected with the oil pipe through a detachable safety joint, a liquid inlet valve (17) fixedly connected with the outer pipe (6) is arranged below the hollow plunger (5) in the annular space, and a liquid outlet valve (20) is arranged at the upper part of the hollow plunger (5); the horizontal well integrated production profile testing device further comprises a testing instrument (14) with a cable (11) arranged in the oil pipe, wherein the cable (11) penetrates through the oil pipe, a central pipe of the packer (9) and an inner pipe (4) of the hollow suction pump and is used for extending to a well head.
2. The horizontal well integrated production profile testing device according to claim 1, wherein the oil pipe comprises a lower oil pipe arranged in a well section below a deflecting point of the horizontal well and an upper oil pipe arranged in a well section above the deflecting point, and the upper oil pipe is a thickened oil pipe (1) with a wall thickness larger than that of the lower oil pipe.
3. The horizontal well integrated production profile testing device according to claim 2, wherein the lower oil pipe is a flat chamfer oil pipe (10).
4. The horizontal well integrated production profile testing device according to claim 2 or 3, wherein the packer (9) and the hollow suction pump are both connected with the thickened oil pipe (1), and the inner diameters of the central pipe of the packer (9) and the inner pipe (4) of the hollow suction pump are both the same as the inner diameter of the thickened oil pipe (1).
5. The horizontal well integrated production profile testing device according to any one of claims 1 to 3, characterized in that the inner diameters of the central pipe of the packer (9) and the inner pipe (4) of the hollow suction pump are both larger than the outer diameter of the testing instrument (14).
6. The horizontal well integrated production profile testing device according to claim 5, wherein the lower end of the inner pipe (4) of the hollow suction pump is provided with an inner chamfer (4-2).
7. The horizontal well integrated production profile testing device according to any one of claims 1 to 3, wherein the safety joint is an inverted safety joint, so that the safety joint is separated from an oil pipe by lifting the oil pipe and rotating forward after the packer (9) is set.
8. The horizontal well integrated production profile testing device according to any one of claims 1 to 3, wherein the horizontal well integrated production profile testing device further comprises a wellhead device, and the wellhead device comprises a casing four-way (24), a blowout preventer (23), an oil pipe elevator (25) and an oil pipe three-way (22) from bottom to top; the casing four-way (24) is used as a reverse circulation channel and a suction and drainage outlet, and the blowout preventer (23) is used for controlling a wellhead to prevent blowout; the oil pipe elevator (25) is used for lifting the oil pipe to reciprocate up and down so as to drive a hollow plunger (5) of the hollow suction pump to suck and discharge liquid; the oil pipe tee joint (22) is used for connecting a cement truck so as to convey the test instrument (14) to the horizontal section (13) through water injection hydraulic power.
9. The horizontal well integrated production profile testing device according to claim 8, wherein the wellhead further comprises a cable lubricator (21) disposed above the tubing tee (22).
10. The horizontal well integrated production profile testing device according to claim 8, characterized in that the testing instrument (14) is used for lowering into the vertical section (7) by self-weight, and the tubing tee (22) is used for conveying the testing instrument (14) to the horizontal section (13) in the well section below the kick-off point.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222353960.9U CN218598199U (en) | 2022-09-05 | 2022-09-05 | Horizontal well integrated liquid production profile testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222353960.9U CN218598199U (en) | 2022-09-05 | 2022-09-05 | Horizontal well integrated liquid production profile testing device |
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| CN218598199U true CN218598199U (en) | 2023-03-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117432401A (en) * | 2023-11-13 | 2024-01-23 | 西南石油大学 | Device and method for simulating physical simulation of water plugging of side-bottom water reservoir horizontal well section |
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2022
- 2022-09-05 CN CN202222353960.9U patent/CN218598199U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117432401A (en) * | 2023-11-13 | 2024-01-23 | 西南石油大学 | Device and method for simulating physical simulation of water plugging of side-bottom water reservoir horizontal well section |
| CN117432401B (en) * | 2023-11-13 | 2024-04-19 | 西南石油大学 | Device and method for simulating physical simulation of water plugging of side-bottom water reservoir horizontal well section |
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