CN114086952A - Dual-mode underground steam sampling switch controller and control method - Google Patents
Dual-mode underground steam sampling switch controller and control method Download PDFInfo
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- E21B49/00—Testing 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
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/081—Obtaining fluid samples or testing fluids, in boreholes or wells with down-hole means for trapping a fluid sample
- E21B49/082—Wire-line fluid samplers
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing 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
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/081—Obtaining fluid samples or testing fluids, in boreholes or wells with down-hole means for trapping a fluid sample
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Abstract
The utility model discloses a dual-mode underground steam sampling switch controller and a control method, wherein the dual-mode underground steam sampling switch controller comprises an upper sampling heavy hammer controller, the upper sampling heavy hammer controller is positioned above a hammering control device, the upper sampling heavy hammer controller can generate hammering force on the hammering control device through falling, the lower end of the hammering control device is connected with an upper sampling cylinder, the hammering control device can close a sample inlet of the upper sampling cylinder, and the dual-mode underground steam sampling switch controller also comprises a lower sampling wall-mounted controller; the upper end of the lower sampling wall-mounted controller is fixedly connected with the lower end of the upper sampling barrel, the lower end of the lower sampling wall-mounted controller is connected with the lower sampling barrel, and the lower sampling wall-mounted controller can close a sample inlet of the lower sampling barrel. The heavy hammer and the wall-mounted dual-mode switch are controlled, so that the functionality is strong, and the safety and the reliability are high; two samples at different depth points can be taken in one time of well descending, the success rate is high, and the efficiency is high.
Description
Technical Field
The utility model relates to the technical field of heavy oil thermal recovery testing, in particular to a dual-mode underground steam sampling switch controller and a control method.
Background
The steam injection well mainly takes steam dryness sampling as a main method for evaluating steam injection quality and pipe column heat loss, takes out a sample for direct test (or conductivity measurement), and is simple, visual and reliable in data. The existing steam sampler switch mostly adopts a clock control mode, and the success rate is low due to the influence of high temperature; the part adopts hammering control mode, and switch position design defect and seal structure are unreasonable, and high temperature and high pressure resistant performance is poor, easily appears the thorn and leaks and cause the scald accident, and just once the well can only take out a sample, and the sample that will acquire the different degree of depth need be played the operation repeatedly and is accomplished, and is inefficient.
Publication (bulletin) No.: CN2403894Y, publication (public notice) day: 2000-11-01 a kind of tester for steam dryness and temperature in oil field, it is made up of valve stem locking releasing assembly, steam sample replacing storage cylinder and temperature measurer, it is characterized by that there are spring steel wire plug and lock ball sleeve under the impacting sliding sleeve, there is energy storage spring steam inlet well mouth pipe in the middle of the spacing jackscrew sealing rod, the sealing rod locking cap at the lower part is matched with the central pull rod, the central pipe is welded with the clamping wall pipe, in the sampling outer pipe, the steam outlet pipe is connected with the temperature measurer, it can measure the temperature at any depth sampling point in the well by hammering during the test, the sample obtains the steam dryness value by analysis, thus it provides steam parameter for thick oil thermal production well. The instrument organically combines steam dryness and temperature tests, so that the instrument can be used for testing the steam injection heavy oil thermal recovery of an oil field. The instrument adopts a steel wire to go into the well, and has the advantages of simple structure, convenient operation and low cost.
Publication (bulletin) No.: CN202720144U, publication (public notice) day: 2013-02-06 discloses a steam sampler, which comprises a column part and a cone part which are integrally formed, and a through hole arranged on the central axis of the column part and the cone part, wherein the column part is connected with an external connecting pipe, the cone part extends into a steam pipeline, and a sampling hole communicated with the through hole is arranged on the cone part. Compared with the prior art, the steam sampler is a combination of a column and a cone, the cone is arranged in the main steam pipeline, the disturbance of the probe to the steam flow in the main steam pipeline is reduced to the maximum extent, the impact and the abrasion of the steam to the sampling head are reduced, the steam can enter the sampling hole of the cone in a better flow state, the constant-speed sampling can be favorably completed, and the sampled product is representative.
Publication (bulletin) No.: CN101545834B, publication (public notice) day: 2011-12-14 is a modified superheated steam sampler. It has high safety and stability. The sampling device comprises a sampling head, a pipe joint, a sealing plate, a header or a pipeline, wherein a joint seat is sleeved at the root of the sampling head, the joint seat is in threaded fit connection with the root of the sampling head, the joint seat is in welded fastening connection with the header or the pipeline, and the joint seat is made of the same material as the header or the pipeline.
Publication (bulletin) No.: CN205117338U, publication (public notice) day: 2016-03-30 relates to an adjustable downhole steam dryness sampler control locking mechanism. This adjustable downhole steam quality sampler control locking mechanism includes: the control sleeve, the rope cap head, the limiting screw, the locking steel ball, the lock sleeve and the guide rod are arranged, a limiting groove is formed in the middle of the left end of the control sleeve, a locking steel ball reset groove is formed in the inner structure of the right end of the control sleeve, the rope cap head and the limiting screw move in the limiting groove of the control sleeve to play a role in limiting adjustment, a positioning groove is formed in the left end of the lock sleeve, a locking groove is formed in the guide rod, and the locking steel ball enables the control sleeve, the lock sleeve and the guide rod to be locked under the effects of the limiting groove of the control sleeve, the positioning groove of the lock sleeve and the locking groove in the guide rod. The adjustable underground steam dryness sampler control locking mechanism provided by the utility model can control the locking mechanism at any time, and can control the opening and closing states of the locking mechanism.
In summary, the technical solutions of the above-disclosed technologies, the technical problems to be solved, and the advantageous effects thereof are all different from the present invention, or the technical fields or the application occasions are different, and no technical inspiration exists in the above-disclosed technical documents for more technical features, technical problems to be solved, and advantageous effects thereof.
Disclosure of Invention
The utility model aims to provide a dual-mode underground steam sampling switch controller and a control method aiming at the defects in the prior art, and the heavy hammer and the wall-mounted dual-mode switch are controlled, so that the dual-mode underground steam sampling switch controller is high in functionality, safe and reliable; two samples at different depth points can be taken in one time of well descending, the success rate is high, and the efficiency is high.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a dual-mode underground steam sampling switch controller comprises an upper sampling heavy hammer controller, a lower sampling wall-mounted controller and a hammer control device, wherein the upper sampling heavy hammer controller is positioned above a hammering control device and can generate hammering force on the hammering control device through falling;
the upper end of the lower sampling wall-mounted controller is fixedly connected with the lower end of the upper sampling barrel, the lower end of the lower sampling wall-mounted controller is connected with the lower sampling barrel, and the lower sampling wall-mounted controller can close a sample inlet of the lower sampling barrel.
Furthermore, the upper sampling heavy hammer controller comprises a plug main body, a heavy hammer and a heavy hammer release mechanism;
the heavy hammer slides in the axial inner cavity of the plug main body, a heavy hammer central hole for penetrating through the well entering steel wire is formed in the center of the heavy hammer, and the lower end of the well entering steel wire is connected with the hammering control device;
the heavy hammer release mechanism is radially arranged in an eccentric radial hole formed in the plug main body, the eccentric radial hole is communicated with the axial inner cavity of the plug main body, and the inner end of the heavy hammer release mechanism can lock and release the heavy hammer.
Further, the weight releasing device comprises a control half shaft, a gland and a sealing filler;
the inner half section of the control half shaft is provided with an axial plane to form a half shaft surface section, namely the cross section of the half shaft surface section is D-shaped, the inner half section of the control half shaft is arranged corresponding to the circumferential outer wall of the heavy hammer, the outer half section of the control half shaft is cylindrical, and sealing filler is filled between the outer wall of the outer half section and the inner wall of the eccentric radial hole of the plug main body;
the gland is arranged in the eccentric radial hole, and the inner end of the gland presses the sealing packing.
Further, the lower sampling wall-mounted controller comprises a wall-mounted control upper main body, a wall-mounted control lower main body, a middle control rod return spring and an ascending blocked release device;
the upper end of the wall-hung control upper main body is connected with the lower end of the upper sampling cylinder, the lower end of the wall-hung control upper main body is connected with the upper end of the wall-hung control lower main body, and the lower end of the wall-hung control lower main body is connected with the upper end of the lower sampling cylinder;
the middle control rod is installed inside the wall-mounted control lower main body, the middle control rod return spring is sleeved on the middle control rod, namely the upper end of the middle control rod return spring abuts against a clamping table on the outer wall of the middle control rod, the lower end of the middle control rod return spring abuts against a clamping table inside the wall-mounted control lower main body, and the bottom end of the middle control rod abuts against a sampling cylinder closing control rod of the lower sampling cylinder;
the ascending hindered release device is provided with a control end and a hindered end, wherein the control end is arranged corresponding to the upper end of the middle control rod, the hindered end extends out of a radial window formed in the wall-hanging control upper main body, and the resistance of the hindered end is derived from the friction force between the hindered end and the inner wall of an external oil pipe or the blocking force between the hindered end and an oil pipe coupling ring platform.
Furthermore, the uplink blocked release device comprises a blocked rod compression bolt, a wall-hanging blocked rod, a wall-hanging control upper fixture block and a wall-hanging control lower fixture block;
the inner end of the wall-hung control upper fixture block is hinged with the upper end of the wall-hung control lower fixture block through a pin shaft, the pin shaft is also fixedly connected with the wall-hung control upper main body, and the lower end of the wall-hung control lower fixture block is provided with a right-angled step as a control end to prop against the upper end of the middle control rod;
the outer end of the wall-hanging control upper clamping block is fixedly connected with a wall-hanging blocking rod through a blocking rod pressing bolt, and the outer end of the wall-hanging blocking rod is used as a blocking end.
Furthermore, a rotating limiting table is arranged on the wall-mounted control lower clamping block, and the rotating limiting table can enable the wall-mounted control upper clamping block to drive the wall-mounted control lower clamping block to rotate in a linkage mode simultaneously when the blocked end is blocked, so that the control end leaves the upper end of the middle control rod, and the control on the middle control rod is released.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a control method of a dual-mode downhole steam sampling switch controller comprises the following steps:
the first step is as follows: the method comprises the following steps that (1) underground steam dryness sampling is carried out firstly, then, the depth is increased, and then, the depth is decreased, and after an upper sampling cylinder and a lower sampling cylinder are filled with steam in the underground, the lower sampling cylinder is controlled to be closed through a lower sampling wall-mounted controller;
the second step is as follows: then the upper sampling heavy hammer controller releases the heavy hammer, the heavy hammer falls down to generate a hammering force on the hammering control device, and the hammering control device realizes closing of the upper sampling cylinder;
the third step: and taking out the upper sampling cylinder and the lower sampling cylinder, and then taking out the sample.
Further, the specific operation method of the first step is as follows: when the sampling barrel is lowered into the well, the closing control rod of the sampling barrel is propped by the pressed middle control rod, so that the lower sampling barrel is in an open state, and the pressed middle control rod cannot move upwards after being propped by the wall-hung control lower clamping block; when the sampling in place, through lifting the steel wire into the well, the wall built-up hindered rod can touch the inner wall of the oil pipe to generate resistance, so that the wall built-up hindered rod moves downwards, the wall built-up hindered rod drives the wall built-up controlled upper fixture block to rotate, the wall built-up controlled upper fixture block touches the wall built-up controlled lower rotary limiting table on the fixture block, the wall built-up controlled upper fixture block drives the wall built-up controlled lower fixture block to rotate and swing, the middle control rod is separated from the wall built-up controlled lower fixture block to control and move upwards, and the control rod is closed to move upwards to achieve the purpose of closing the lower sampling cylinder.
Further, the specific operation method of the second step is as follows: go up sample weight controller and be located outside the well head, go the rotation control semi-axis with hand or instrument, when anticlockwise rotation control semi-axis was in 45, the semi-axis face of control semi-axis formed tangent state with the cylindrical surface of control weight, and the weight loses the radial extrusion control of control semi-axis and does gravity free fall motion along the steel wire, and the weight strikes hammering controlling means, and sampling barrel is closed to hammering controlling means, realizes the purpose that the sample was taken out.
Compared with the prior art, the utility model has the following beneficial effects:
by the ingenious combination of connecting of new-type last draft tube and lower draft tube, adopt new-type weight and the control of the double mode switch of wall built-up: the upper sampling cylinder releases the heavy hammer through an eccentric control half shaft to open and close the upper sampling cylinder; the lower sampling cylinder is controlled by a wall-mounted switch to open and close the lower sampler. The underground steam dryness sampling is carried out firstly deeply and then shallowly, the wall-mounted lower sampler is firstly controlled to work, then the heavy hammer is used for controlling the upper sampling barrel to work, and the sampler is sequentially controlled to take out samples. The utility model has the characteristics of novel design, high integration level, simple switch, safety, reliability, high efficiency and the like, realizes the extraction of underground steam dryness samples at two points with different depths in one-time underground well, and provides an efficient technical support for evaluating the steam injection quality and the heat loss of a pipe column.
Drawings
FIG. 1 is a schematic structural diagram of a dual-mode downhole steam sampling switch controller according to the present invention;
FIG. 2 is a schematic diagram of the upper sampling weight controller in an open state;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is a schematic diagram of the structure of the up-sampling weight controller during closing;
FIG. 5 is a cross-sectional view of FIG. 4;
FIG. 6 is a schematic structural view of a down-sampling wall-mounted controller;
FIG. 7 is a schematic view of the closed down-sampling wall-mounted controller;
FIG. 8 is a schematic view of the structure of the lower sampling wall-mounted controller when it is opened.
In the figure: 1. the device comprises a plug main body, 2, a heavy hammer, 3, a control half shaft, 4 a gland, 5, sealing filler, 6, a well entering steel wire, 7, a hammering control device, 8, an upper sampling cylinder, 9, a wall-hanging control upper main body, 10, a blocked rod pressing bolt, 11, a wall-hanging blocked rod, 12, a wall-hanging control upper clamping device, 13, a wall-hanging control lower clamping device, 14, a middle control rod, 15, a middle control rod return spring, 16, a wall-hanging control lower main body, 17, a sampling cylinder closing control rod, 18 and a lower sampling cylinder.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
referring to fig. 1 to 8, the present invention provides a technical solution:
a dual-mode underground steam sampling switch controller comprises an upper sampling heavy hammer controller, a lower sampling wall-mounted controller and an upper sampling heavy hammer controller, wherein the upper sampling heavy hammer controller is positioned above a hammering control device, the upper sampling heavy hammer controller 7 can generate hammering force on the hammering control device through falling, the lower end of the hammering control device is connected with an upper sampling cylinder 8, and the hammering control device can close a sample inlet of the upper sampling cylinder;
since the hammering control device 7, the upper sampling cylinder and the lower sampling cylinder are all the prior art in the well, detailed description is omitted, and it is clear to those skilled in the art that the utility model only partially improves the upper sampling hammer controller, and then newly develops the lower sampling wall-mounted controller.
The upper end of the lower sampling wall-mounted controller is fixedly connected with the lower end of the upper sampling barrel, the lower end of the lower sampling wall-mounted controller is connected with the lower sampling barrel 18, and the lower sampling wall-mounted controller can close the sample inlet of the lower sampling barrel.
Furthermore, the upper sampling heavy hammer controller comprises a plug main body 1, a heavy hammer 2 and a heavy hammer release mechanism;
the heavy hammer slides in the axial inner cavity of the plug main body, a heavy hammer central hole for penetrating through the well entering steel wire is formed in the center of the heavy hammer, and the lower end of the well entering steel wire is connected with the hammering control device;
the heavy hammer release mechanism is radially arranged in an eccentric radial hole formed in the plug main body, the eccentric radial hole is communicated with the axial inner cavity of the plug main body, and the inner end of the heavy hammer release mechanism can lock and release the heavy hammer.
Further, the weight releasing device comprises a control half shaft 3, a gland 4 and a sealing filler 5;
the inner half section of the control half shaft is provided with an axial plane to form a half shaft surface section, namely the cross section of the half shaft surface section is D-shaped, the inner half section of the control half shaft is arranged corresponding to the circumferential outer wall of the heavy hammer, the outer half section of the control half shaft is cylindrical, and sealing filler is filled between the outer wall of the outer half section and the inner wall of the eccentric radial hole of the plug main body;
the gland is arranged in the eccentric radial hole, and the inner end of the gland presses the sealing packing.
Further, the lower sampling wall-mounted controller comprises a wall-mounted control upper main body 9, a wall-mounted control lower main body 16, a middle control rod 14, a middle control rod return spring 15 and an ascending blocked release device;
the upper end of the wall-hung control upper main body is connected with the lower end of the upper sampling cylinder, the lower end of the wall-hung control upper main body is connected with the upper end of the wall-hung control lower main body, and the lower end of the wall-hung control lower main body is connected with the upper end of the lower sampling cylinder;
the middle control rod is installed inside the wall-mounted control lower main body, the middle control rod return spring is sleeved on the middle control rod, namely the upper end of the middle control rod return spring abuts against a clamping table on the outer wall of the middle control rod, the lower end of the middle control rod return spring abuts against a clamping table inside the wall-mounted control lower main body, and the bottom end of the middle control rod abuts against a sampling cylinder closing control rod 17 of the lower sampling cylinder 18;
the ascending hindered release device is provided with a control end and a hindered end, wherein the control end is arranged corresponding to the upper end of the middle control rod, the hindered end extends out of a radial window formed in the wall-hanging control upper main body, and the resistance of the hindered end is derived from the friction force between the hindered end and the inner wall of an external oil pipe or the blocking force between the hindered end and an oil pipe coupling ring platform.
Further, the ascending blocked release device comprises a blocked rod pressing bolt 10, a wall-hanging blocked rod 11, a wall-hanging control upper fixture block 12 and a wall-hanging control lower fixture block 13;
the inner end of the wall-hung control upper fixture block is hinged with the upper end of the wall-hung control lower fixture block through a pin shaft, the pin shaft is also fixedly connected with the wall-hung control upper main body, and the lower end of the wall-hung control lower fixture block is provided with a right-angled step as a control end to prop against the upper end of the middle control rod;
the outer end of the wall-hanging control upper clamping block is fixedly connected with a wall-hanging blocking rod through a blocking rod pressing bolt, and the outer end of the wall-hanging blocking rod is used as a blocking end. The wall built-up is hindered pole 11 and is adopted elastic steel wire, can not cause to stab absolutely because of stabbing in oil pipe inner wall or coupling inner wall ring platform wait position, can be because of elasticity moreover, can be from top to bottom the free bending operation from top to bottom, can not influence simultaneously and carry out the effect of transmission radial force as radial drive pole.
Furthermore, a rotating limiting table is arranged on the wall-mounted control lower clamping block, and the rotating limiting table can enable the wall-mounted control upper clamping block to drive the wall-mounted control lower clamping block to rotate in a linkage mode simultaneously when the blocked end is blocked, so that the control end leaves the upper end of the middle control rod, and the control on the middle control rod is released.
The upper sampling weight controller mainly comprises: 1. the device comprises a plug main body, 2, a heavy hammer, 3, a control half shaft, 4 a gland, 5, sealing filler, 6, a well entering steel wire, 7, a hammering control device, 8 and an upper sampling tube.
The plug main body 1 is a carrier for locking and releasing the heavy hammer 2 by the eccentric control half shaft 3, and steel wire sealing in the test process is guaranteed; the weight 2 is a control body for closing the upper sampling tube 8; the control half shaft 3 is used for locking or releasing the heavy hammer 2, and whether the heavy hammer 2 is released or not is judged through rotation; the gland 4 is used for fixedly controlling the half shaft 3 to only do rotary motion and not do axial motion; the sealing filler 5 ensures high-temperature and high-pressure sealing of the control half shaft 3, and sealing test is realized.
The control semi-axis 3 can lock weight 2 with 45 inclination, when anticlockwise rotation control semi-axis 3 when 45, the semi-axis face of control semi-axis 3 and the cylindrical surface of control weight 2 form tangent state, the draw-in groove of weight 2 loses the control of control semi-axis 3 and does gravity free fall motion along the steel wire, weight 2 strikes hammering controlling means 7, closes upper sampling tube 8, just so can take out the upper sampling tube 8 that is equipped with the sample after the closure, just can realize the purpose that the sample was taken out. And whether the weight 2 is released or not can be judged by controlling the half shaft 3 to rotate 360 degrees. The structure for controlling the rotation motion of the half shaft 3 relative to the axial motion is simpler and is convenient for sealing.
The lower sampling wall-mounted controller mainly comprises: 9. the wall-mounted control upper main body comprises a wall-mounted control upper main body, 10 a blocked rod compression bolt, 11 a wall-mounted blocked rod, 12 a wall-mounted control upper fixture block, 13 a wall-mounted control lower fixture block, 14 an intermediate control rod, 15 an intermediate control rod return spring, 16 a wall-mounted control lower main body, 17 a sampling cylinder closing control rod, 18 and a lower sampling cylinder. The wall-mounted control upper and lower main bodies are carriers of wall-mounted control upper and lower fixture blocks, so that accurate control of the wall-mounted control fixture blocks is guaranteed; the hanging wall controls the upper and lower clamping blocks to mainly control the key part of closing the sampling cylinder; the intermediate lever ensures that the withdrawal chimney can be completely closed.
When the well is run in, the closing control rod 17 is propped by the pressed middle control rod 14, so that the lower sampling cylinder 18 is in an open state, and the pressed middle control rod 14 cannot move upwards after being propped by the wall-hung control lower fixture block 13. When the sampling is in place, the wall-hanging blocking rod 11 moves downwards by lifting the well steel wire 6, the wall-hanging blocking rod 11 drives the wall-hanging control upper clamping block 12 to rotate, the wall-hanging control upper clamping block 12 drives the wall-hanging control lower clamping block 13 to move, the middle control rod 14 moves upwards by being separated from the control of the wall-hanging control lower clamping block 13, and the middle control rod 17 moves upwards by being connected with the closing control rod 17, so that the purpose of closing the lower sampling cylinder 18 is achieved.
The utility model is a new double-mode underground steam sampling switch controller, heavy punch and wall built-up double-mode switch control, the functionality is strong, safe and reliable; two samples at different depth points can be taken in one time of well descending, the success rate is high, and the efficiency is high. The key of the technology is to develop a heavy hammer and a wall-mounted dual-mode switch to control an upper steam sampler and a lower steam sampler to be normally opened and closed.
Example 2:
referring to fig. 1 to 8, the present invention provides a technical solution:
a dual-mode underground steam sampling switch controller comprises an upper sampling heavy hammer controller, a lower sampling wall-mounted controller and an upper sampling heavy hammer controller, wherein the upper sampling heavy hammer controller is positioned above a hammering control device, the upper sampling heavy hammer controller 7 can generate hammering force on the hammering control device through falling, the lower end of the hammering control device is connected with an upper sampling cylinder 8, and the hammering control device can close a sample inlet of the upper sampling cylinder;
since the hammering control device 7, the upper sampling cylinder and the lower sampling cylinder are all the prior art in the well, detailed description is omitted, and it is clear to those skilled in the art that the utility model only partially improves the upper sampling hammer controller, and then newly develops the lower sampling wall-mounted controller.
The upper end of the lower sampling wall-mounted controller is fixedly connected with the lower end of the upper sampling barrel, the lower end of the lower sampling wall-mounted controller is connected with the lower sampling barrel 18, and the lower sampling wall-mounted controller can close the sample inlet of the lower sampling barrel.
Furthermore, the upper sampling heavy hammer controller comprises a plug main body 1, a heavy hammer 2 and a heavy hammer release mechanism;
the heavy hammer slides in the axial inner cavity of the plug main body, a heavy hammer central hole for penetrating through the well entering steel wire is formed in the center of the heavy hammer, and the lower end of the well entering steel wire is connected with the hammering control device;
the heavy hammer release mechanism is radially arranged in an eccentric radial hole formed in the plug main body, the eccentric radial hole is communicated with the axial inner cavity of the plug main body, and the inner end of the heavy hammer release mechanism can lock and release the heavy hammer.
Further, the weight releasing device comprises a control half shaft 3, a gland 4 and a sealing filler 5;
the inner half section of the control half shaft is provided with an axial plane to form a half shaft surface section, namely the cross section of the half shaft surface section is D-shaped, the inner half section of the control half shaft is arranged corresponding to the circumferential outer wall of the heavy hammer, the outer half section of the control half shaft is cylindrical, and sealing filler is filled between the outer wall of the outer half section and the inner wall of the eccentric radial hole of the plug main body;
the gland is arranged in the eccentric radial hole, and the inner end of the gland presses the sealing packing.
Further, the lower sampling wall-mounted controller comprises a wall-mounted control upper main body 9, a wall-mounted control lower main body 16, a middle control rod 14, a middle control rod return spring 15 and an ascending blocked release device;
the upper end of the wall-hung control upper main body is connected with the lower end of the upper sampling cylinder, the lower end of the wall-hung control upper main body is connected with the upper end of the wall-hung control lower main body, and the lower end of the wall-hung control lower main body is connected with the upper end of the lower sampling cylinder;
the middle control rod is installed inside the wall-mounted control lower main body, the middle control rod return spring is sleeved on the middle control rod, namely the upper end of the middle control rod return spring abuts against a clamping table on the outer wall of the middle control rod, the lower end of the middle control rod return spring abuts against a clamping table inside the wall-mounted control lower main body, and the bottom end of the middle control rod abuts against a sampling cylinder closing control rod 17 of the lower sampling cylinder 18;
the ascending hindered release device is provided with a control end and a hindered end, wherein the control end is arranged corresponding to the upper end of the middle control rod, the hindered end extends out of a radial window formed in the wall-hanging control upper main body, and the resistance of the hindered end is derived from the friction force between the hindered end and the inner wall of an external oil pipe or the blocking force between the hindered end and an oil pipe coupling ring platform.
Example 3:
a dual-mode underground steam sampling switch controller comprises an upper sampling heavy hammer controller, a lower sampling wall-mounted controller and an upper sampling heavy hammer controller, wherein the upper sampling heavy hammer controller is positioned above a hammering control device, the upper sampling heavy hammer controller 7 can generate hammering force on the hammering control device through falling, the lower end of the hammering control device is connected with an upper sampling cylinder 8, and the hammering control device can close a sample inlet of the upper sampling cylinder;
since the hammering control device 7, the upper sampling cylinder and the lower sampling cylinder are all the prior art in the well, detailed description is omitted, and it is clear to those skilled in the art that the utility model only partially improves the upper sampling hammer controller, and then newly develops the lower sampling wall-mounted controller.
The upper end of the lower sampling wall-mounted controller is fixedly connected with the lower end of the upper sampling barrel, the lower end of the lower sampling wall-mounted controller is connected with the lower sampling barrel 18, and the lower sampling wall-mounted controller can close the sample inlet of the lower sampling barrel.
Furthermore, the upper sampling heavy hammer controller comprises a plug main body 1, a heavy hammer 2 and a heavy hammer release mechanism;
the heavy hammer slides in the axial inner cavity of the plug main body, a heavy hammer central hole for penetrating through the well entering steel wire is formed in the center of the heavy hammer, and the lower end of the well entering steel wire is connected with the hammering control device;
the heavy hammer release mechanism is radially arranged in an eccentric radial hole formed in the plug main body, the eccentric radial hole is communicated with the axial inner cavity of the plug main body, and the inner end of the heavy hammer release mechanism can lock and release the heavy hammer.
Further, the weight releasing device comprises a control half shaft 3, a gland 4 and a sealing filler 5;
the inner half section of the control half shaft is provided with an axial plane to form a half shaft surface section, namely the cross section of the half shaft surface section is D-shaped, the inner half section of the control half shaft is arranged corresponding to the circumferential outer wall of the heavy hammer, the outer half section of the control half shaft is cylindrical, and sealing filler is filled between the outer wall of the outer half section and the inner wall of the eccentric radial hole of the plug main body;
the gland is arranged in the eccentric radial hole, and the inner end of the gland presses the sealing packing.
Although fig. 1 to 8 are used in all the above embodiments, it is obvious to those skilled in the art that separate drawings are not shown as long as the parts or structural features missing in the embodiments are removed from the drawings. As will be clear to the skilled person. Of course, the embodiment with more components is only the best embodiment, and the embodiment with less components is the basic embodiment, but the basic object of the utility model can also be achieved, so all the modified embodiments are within the protection scope of the utility model.
All parts and parts which are not discussed in the present application and the connection mode of all parts and parts in the present application belong to the known technology in the technical field, and are not described again. Such as welding, threaded connections, etc.
In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A dual-mode underground steam sampling switch controller comprises an upper sampling heavy hammer controller, wherein the upper sampling heavy hammer controller is positioned above a hammering control device, the upper sampling heavy hammer controller can generate hammering force on the hammering control device through falling, the lower end of the hammering control device is connected with an upper sampling cylinder, and the hammering control device can close a sample inlet of the upper sampling cylinder;
the upper end of the lower sampling wall-mounted controller is fixedly connected with the lower end of the upper sampling barrel, the lower end of the lower sampling wall-mounted controller is connected with the lower sampling barrel, and the lower sampling wall-mounted controller can close a sample inlet of the lower sampling barrel.
2. The dual mode downhole steam sampling switch controller of claim 1, wherein the up-sampling weight controller comprises a plug body, a weight release mechanism;
the heavy hammer slides in the axial inner cavity of the plug main body, a heavy hammer central hole for penetrating through the well entering steel wire is formed in the center of the heavy hammer, and the lower end of the well entering steel wire is connected with the hammering control device;
the heavy hammer release mechanism is radially arranged in an eccentric radial hole formed in the plug main body, the eccentric radial hole is communicated with the axial inner cavity of the plug main body, and the inner end of the heavy hammer release mechanism can lock and release the heavy hammer.
3. The dual mode downhole steam sampling switch controller of claim 2, wherein the weight release comprises a control half shaft, a gland, a packing;
the inner half section of the control half shaft is provided with an axial plane to form a half shaft surface section, namely the cross section of the half shaft surface section is D-shaped, the inner half section of the control half shaft is arranged corresponding to the circumferential outer wall of the heavy hammer, the outer half section of the control half shaft is cylindrical, and sealing filler is filled between the outer wall of the outer half section and the inner wall of the eccentric radial hole of the plug main body;
the gland is arranged in the eccentric radial hole, and the inner end of the gland presses the sealing packing.
4. The dual-mode downhole steam sampling switch controller of claim 1, 2 or 3, wherein the down-sampling wall built-up controller comprises a wall built-up control upper body, a wall built-up control lower body, an intermediate control rod return spring, an up-going blocked release device;
the upper end of the wall-hung control upper main body is connected with the lower end of the upper sampling cylinder, the lower end of the wall-hung control upper main body is connected with the upper end of the wall-hung control lower main body, and the lower end of the wall-hung control lower main body is connected with the upper end of the lower sampling cylinder;
the middle control rod is installed inside the wall-mounted control lower main body, the middle control rod return spring is sleeved on the middle control rod, namely the upper end of the middle control rod return spring abuts against a clamping table on the outer wall of the middle control rod, the lower end of the middle control rod return spring abuts against a clamping table inside the wall-mounted control lower main body, and the bottom end of the middle control rod abuts against a sampling cylinder closing control rod of the lower sampling cylinder;
the ascending hindered release device is provided with a control end and a hindered end, wherein the control end is arranged corresponding to the upper end of the middle control rod, the hindered end extends out of a radial window formed in the wall-hanging control upper main body, and the resistance of the hindered end is derived from the friction force between the hindered end and the inner wall of an external oil pipe or the blocking force between the hindered end and an oil pipe coupling ring platform.
5. The dual-mode downhole steam sampling switch controller according to claim 4, wherein the uplink blocking release device comprises a blocking rod hold-down bolt, a wall-hanging blocking rod, a wall-hanging control upper fixture block, and a wall-hanging control lower fixture block;
the inner end of the wall-hung control upper fixture block is hinged with the upper end of the wall-hung control lower fixture block through a pin shaft, the pin shaft is also fixedly connected with the wall-hung control upper main body, and the lower end of the wall-hung control lower fixture block is provided with a right-angled step as a control end to prop against the upper end of the middle control rod;
the outer end of the wall-hanging control upper clamping block is fixedly connected with a wall-hanging blocking rod through a blocking rod pressing bolt, and the outer end of the wall-hanging blocking rod is used as a blocking end.
6. The dual-mode downhole steam sampling switch controller according to claim 5, wherein the wall-hanging control lower fixture block is provided with a rotation limiting table, and the rotation limiting table enables the wall-hanging control upper fixture block to drive the wall-hanging control lower fixture block to rotate in a linkage manner simultaneously when the blocked end is blocked, so that the control end leaves the upper end of the middle control rod, and the control on the middle control rod is released.
7. A control method of a dual-mode downhole steam sampling switch controller is characterized by comprising the following steps:
the first step is as follows: the method comprises the following steps that (1) underground steam dryness sampling is carried out firstly, then, the depth is increased, and then, the depth is decreased, and after an upper sampling cylinder and a lower sampling cylinder are filled with steam in the underground, the lower sampling cylinder is controlled to be closed through a lower sampling wall-mounted controller;
the second step is as follows: then the upper sampling heavy hammer controller releases the heavy hammer, the heavy hammer falls down to generate a hammering force on the hammering control device, and the hammering control device realizes closing of the upper sampling cylinder;
the third step: and taking out the upper sampling cylinder and the lower sampling cylinder, and then taking out the sample.
8. The control method of the dual-mode downhole steam sampling switch controller according to claim 7, wherein the specific operation method of the first step is as follows: when the sampling barrel is lowered into the well, the closing control rod of the sampling barrel is propped by the pressed middle control rod, so that the lower sampling barrel is in an open state, and the pressed middle control rod cannot move upwards after being propped by the wall-hung control lower clamping block; when the sampling in place, through lifting the steel wire into the well, the wall built-up hindered rod can touch the inner wall of the oil pipe to generate resistance, so that the wall built-up hindered rod moves downwards, the wall built-up hindered rod drives the wall built-up controlled upper fixture block to rotate, the wall built-up controlled upper fixture block touches the wall built-up controlled lower rotary limiting table on the fixture block, the wall built-up controlled upper fixture block drives the wall built-up controlled lower fixture block to rotate and swing, the middle control rod is separated from the wall built-up controlled lower fixture block to control and move upwards, and the control rod is closed to move upwards to achieve the purpose of closing the lower sampling cylinder.
9. The control method of the dual-mode downhole steam sampling switch controller according to claim 7, wherein the specific operation method of the second step is as follows: go up sample weight controller and be located outside the well head, go the rotation control semi-axis with hand or instrument, when anticlockwise rotation control semi-axis was in 45, the semi-axis face of control semi-axis formed tangent state with the cylindrical surface of control weight, and the weight loses the radial extrusion control of control semi-axis and does gravity free fall motion along the steel wire, and the weight strikes hammering controlling means, and sampling barrel is closed to hammering controlling means, realizes the purpose that the sample was taken out.
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| CN2403894Y (en) * | 1999-09-09 | 2000-11-01 | 辽河石油勘探局钻采工艺研究院 | Underground steam dryness and temperature sampling tester |
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| CN105484745A (en) * | 2015-08-13 | 2016-04-13 | 中国石油化工股份有限公司 | Suction type sampler |
| CN206694025U (en) * | 2017-03-31 | 2017-12-01 | 中国石油天然气股份有限公司 | Electric sampler |
| CN111157701A (en) * | 2020-01-03 | 2020-05-15 | 中国海洋石油集团有限公司 | Coring and sampling integrated logging instrument |
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| CN2403894Y (en) * | 1999-09-09 | 2000-11-01 | 辽河石油勘探局钻采工艺研究院 | Underground steam dryness and temperature sampling tester |
| US20020043371A1 (en) * | 2000-10-14 | 2002-04-18 | Howlett Paul David | Downhole fluid sampler |
| CN202372373U (en) * | 2011-12-20 | 2012-08-08 | 中国石油天然气股份有限公司 | Small-diameter dryness sampler |
| WO2015065391A1 (en) * | 2013-10-30 | 2015-05-07 | Halliburton Energy Services, Inc. | Downhole formation fluid sampler having an inert sampling bag |
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| CN114086952B (en) | 2024-02-27 |
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