CN105181294A - Drilling fluidic element detection device - Google Patents
Drilling fluidic element detection device Download PDFInfo
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- CN105181294A CN105181294A CN201510491491.9A CN201510491491A CN105181294A CN 105181294 A CN105181294 A CN 105181294A CN 201510491491 A CN201510491491 A CN 201510491491A CN 105181294 A CN105181294 A CN 105181294A
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Abstract
The invention provides a drilling fluidic element detection device comprising a flow meter joint, an upper gland, an outer pipe, an outer pipe joint, a pump, a data collector, and a computer. The outer pipe is internally equipped with a fluidic element, a hydraulic cylinder, a cylinder head and a locating spacer sleeve which are installed from top to bottom. The output pipeline of the pump is connected with the inlet end of the flow meter joint. After the flow meter joint, the upper gland, the outer pipe and the outer pipe joint are connected in sequence, and the outer pipe joint is connected with the reflux pipeline of the pump. According to the device, a working fluid medium is transmitted through the pump to drive the fluidic element inside the outer pipe to work, a flow meter and a pressure sensor detect the change in the parameters of liquid inside the fluidic element in a working state, and the data collector and the computer collect and store flow and pressure data for analyzing, optimizing and improving the working parameters of the fluidic element. The detection device is relatively simple in structure and convenient to assemble and disassemble, and is conductive to replacement and installation of fluidic elements of different parameters in the test process.
Description
Technical field:
The present invention relates to oil-drilling field, particularly relate to a kind of drilling well fluidic pick-up unit.
Background technology:
What current downhole motor device was the most frequently used is screw rod and turbine, and the self-energy of input fluid is converted into mechanical energy to drive the work of other instrument of shaft bottom by them.And fluidic is also a kind of downhole motor device, there is the advantages such as compact structure, resistance to high back pressure, deep-well good stability.It is a kind of parts utilizing the attached wall switching characteristic of hydrofluidic to carry out the motion of the topworks such as auto-controlling piston, hydraulic cylinder, liquid alternated property can be assigned to the upper and lower cavity driven plunger to-and-fro movement of hydraulic cylinder by fluidic, thus drives other tool work or produce beneficial effect.Present fluidic has been widely applied to the fields such as geologic prospecting, mine development end, petroleum drilling, create the instruments such as jetting type hydraulic impacter, fluidics downhole boost compressor, jetting type hydroscillator successively, these instruments are all take fluidic as core drive parts.
But the quality of fluidic serviceability needs to judge by testing, fluidic inner geometry parameter is a lot of and influence each other, and debugging efforts is comparatively loaded down with trivial details; In addition, fluidic build is less and inner structure complicated, be unfavorable for that direct instrument is measured, therefore the pick-up unit of design specialized is needed, in normally working to fluidic, in device, the situation of change of liquid parameter detects, judge the working condition of fluidic, be more conducive to the design optimization of fluidic inner geometry parameter, fluidic is more widely used in downhole motor tool design field.
Summary of the invention:
The object of this invention is to provide the pick-up unit that a kind of drilling well fluidic is special, can detect the situation of change of the fluidic internal liquid parameter under in running order, detect rationality and job stability that data can be used to evaluate fluidic inner geometry parameter, thus be more conducive to the design optimization of fluidic inner structure parameter.
Technical scheme of the present invention is as follows:
Described drilling well fluidic pick-up unit comprises: flowmeter joint, upper press cover, outer tube, outer tube joint, pump, data acquisition unit and computing machine; Described outer tube is equipped with fluidic, hydraulic cylinder, cylinder cap and positioning spacer from top to bottom successively; The output pipe of described pump is fixedly connected with the upper entrance end of described flowmeter joint, and flowmeter joint lower part outlet end is fixedly connected with described upper press cover top entry end, and upper press cover lower part outlet end inserts outer tube top entry end and is fixedly connected with.
Portion within the outer tube, upper press cover lower part outlet end is pressed on fluidic upper surface, and docks with the liquid inlet of fluidic upper surface; Fluidic lower surface is pressed on hydraulic cylinder upper surface, and two of fluidic lower surface liquid outlets are communicated with lower chambers with the upper chamber of hydraulic cylinder respectively, be piston between upper chamber and lower chambers, hydraulic cylinder lower end (namely bottom lower chambers) is by cylinder cap capping.The upper entrance end of described outer tube joint is fixedly sleeved at outer tube lower outside, lower part outlet end is connected with the return line of pump, positioning spacer flushes with the lower surface of outer tube, and all withstand on the step inside outer tube joint upper entrance end, the fluidic of outer tube and inside thereof, hydraulic cylinder, cylinder cap and positioning spacer compress by described upper press cover and outer tube joint in the axial direction mutually, make that circumference does not occur between each parts and relatively rotate.In the axial direction, the gap that can circulate for liquid is left between the side surfaces of fluidic, hydraulic cylinder and cylinder cap and outer tube wall, the drain hole of fluidic sidepiece communicates with described gap, and the liquid of discharging from described drain hole flows downward by gap and discharged by outer tube lower part outlet end.
Flowmeter is equipped with the pipeline of flowmeter joint, to measure the data on flows of the working fluid flowing through its inside; Upper press cover and outer tube joint, and in hydraulic cylinder upper and lower chamber ingress end place pipeline on respectively pressure transducer is housed, with the pressure that the working fluid measured is formed on above-mentioned 4 place's pipelines, the pressure of above-mentioned 4 place's pipelines (inlet end of the upper and lower chamber of upper press cover, outer tube joint and hydraulic cylinder) distinguishes the upper cavity pressure of the inlet pressure of corresponding pick-up unit, top hole pressure and internal hydraulic pressure cylinder and lower cavity pressure.Described flowmeter is connected with data acquisition unit by data line with pressure transducer, data acquisition unit is connected with computing machine by data line, and the pressure data of determination of pressure sensor on the data on flows that flowmeter measures and above-mentioned pipeline is everywhere undertaken gathering and storing by data acquisition unit and computing machine.
Described hydraulic cylinder is inner: top is the upper chamber passage that separates of left and right and cavity of resorption passage, respectively as the access road of upper chamber and lower chambers; Middle part and bottom are respectively the upper chamber and lower chambers that are separated by piston, upper chamber passage is communicated with upper chamber, cavity of resorption passage to be extended to side lower part by hydraulic cylinder top and is communicated with lower chambers, the hydraulic cylinder sidewall of cavity of resorption passage side has longitudinal bar shaped uncovered, surface of contact between uncovered surrounding and outer tube wall is provided with at least two seals circle, thus makes the outer tube wall in uncovered outside become a part for cavity of resorption passage.Two liquid outlets of fluidic lower surface dock with the entrance of the upper and lower chamber passage of hydraulic cylinder upper surface respectively.
In order to realize fluidic, hydraulic cylinder, cylinder cap, between positioning spacer and outer tube, better circumference is fixing, guarantee, between parts, relatively rotating in circumference does not occur, be arranged with the boss of at least two position circumference symmetries outside described hydraulic cylinder upper surface, described boss is stuck in periphery bottom fluidic and rotates to stop fluidic, relative to hydraulic cylinder, circumference occurs; Locate fixing by straight pin circumference between described cylinder cap and hydraulic cylinder; In addition, cylinder cap top peripheral is provided with radial boss, and described radial boss inserts in the groove with matching of positioning spacer upper surface, fixing with the circumference location reached between cylinder cap and positioning spacer; Positioning spacer periphery is provided with radial boss equally, and the radial boss on positioning spacer inserts inside outer pipe bottom in groove with matching, fixing with the circumference location reached between positioning spacer and outer tube.
Described cylinder cap locates fixed form with adopting following circumference between hydraulic cylinder: be equipped with cylinder pin hole corresponding to position at the bottom of the lid of cylinder cap and on the surface of contact of hydraulic cylinder lower surface, insert straight pin in hole.
In order to ensure to be connected firmly between upper press cover and outer tube and easy disassembly, upper press cover lower part outlet end and outer tube top entry end are fixed connection by set nut, specific as follows: bottom upper press cover, to be provided with annular boss, the bottom surface of annular boss is pressed on the end face of outer tube top entry end, the part that upper press cover is positioned at below annular boss stretches into outer tube top entry end, annular boss is identical with the external diameter of outer tube top entry end, and described set nut is tightly placed in annular boss outside and is connected by screw thread with the outer tube below annular boss.
In order to can regulating piston run up and down distance, regulate frequency of operation, thus meet different mensuration needs, can arrange bellmouth in piston upper surface, the mode be connected and fixed with the conical surface in hole loads cone governor bar.
Have good sealing in order to ensure device, the surface of contact bottom upper press cover between outer peripheral face and outer tube top inner peripheral surface is provided with at least two seals circle; O-ring seal together with surface of contact between upper press cover lower surface with fluidic upper surface is provided with at least; The entrance surrounding of the upper and lower chamber (upper and lower chamber passage) of hydraulic cylinder upper surface is respectively equipped with at least one O-ring seal; O-ring seal together with outer tube upper periphery face is provided with at least with the surface of contact of set nut sidepiece inner peripheral surface; O-ring seal together with outer tube lower, outer perimeter face is provided with at least with the surface of contact between outer tube joint inner peripheral surface.
Described pump is that water pump, steam piano etc. can be carried liquid or make the equipment of fluid pressurization.
The output pipe end of described pump connects top connection, and return line end connects lower sub; Lower part outlet end, the flowmeter joint of the upper entrance end of top connection and flowmeter joint, lower sub and outer tube joint are all fixedly connected with by screw thread with upper press cover and between outer tube joint with outer tube.In addition, the connected mode of each pipeline flow meter and pressure transducer is and is threaded.Particularly, flowmeter joint, upper press cover are equipped with outer tube joint surface the radial tapped through hole be communicated with its internal duct, flowmeter joint is by the radial tapped through hole incoming stream gauge on its surface, and upper press cover and outer tube joint are respectively by radial tapped through hole cut-in pressure sensor surperficial separately.Outer pipe surface is respectively equipped with the radial tapped through hole be communicated with lower chambers inlet end (cavity of resorption passage) with hydraulic cylinder upper chamber inlet end (upper chamber passage), the described tapped through hole cut-in pressure sensor respectively of outer pipe surface.
Described drilling well fluidic pick-up unit drives the fluidic work in outer tube by transport pump working fluid medium, and detected by flowmeter and the pressure transducer situation of change to the fluidic internal liquid parameter under in running order, carried out collection and the storage of flow and pressure data again by data acquisition unit and computing machine, use for the analysis of fluidic running parameter, optimization and Curve guide impeller.This proving installation structure and parts form relatively simple and easy, and easy accessibility, is conducive to replacing and the installation of the fluidic of different parameters in test process.
Accompanying drawing illustrates:
Fig. 1 is the one-piece construction schematic diagram of drilling well fluidic pick-up unit of the present invention;
Fig. 2 is before circumference location, the relative position schematic diagram of fluidic 4, hydraulic cylinder 6, cylinder cap 9, straight pin 10 and positioning spacer 11;
Fig. 3 is before circumference location, the relative position schematic diagram of outer tube 5, cylinder cap 9 and positioning spacer 11;
Fig. 4 is the relative position schematic diagram after fluidic 4 and hydraulic cylinder 6 circumference are located;
Fig. 5 is the relative position schematic diagram behind hydraulic cylinder 6, cylinder cap 9 and positioning spacer 11 circumference location;
Fig. 6 is the relative position schematic diagram behind outer tube 5, cylinder cap 9 and positioning spacer 11 circumference location.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is specifically described.As shown in Figure 1, drilling well fluidic pick-up unit of the present invention comprises: flowmeter joint 1, upper press cover 2, outer tube 5, outer tube joint 12, pump 13, data acquisition unit 16 and computing machine 17; Described outer tube 5 inside is equipped with fluidic 4, hydraulic cylinder 6, cylinder cap 9 and positioning spacer 11 from top to bottom successively; The output pipe of described pump 13 is fixedly connected with the upper entrance end of flowmeter joint 1, and flowmeter joint 1 lower part outlet end is fixedly connected with described upper press cover 2 top entry end, and upper press cover 2 lower part outlet end inserts outer tube 5 top entry end and is fixedly connected with.
Inner at outer tube 5, upper press cover 2 lower part outlet end is pressed on fluidic 4 upper surface, and docks with the liquid inlet 41 of fluidic 4 upper surface; Fluidic 4 lower surface is pressed on hydraulic cylinder 6 upper surface, and two liquid outlets 42 of fluidic 4 lower surface are communicated with lower chambers 64 with the upper chamber 63 of hydraulic cylinder 6 respectively.Inner at hydraulic cylinder 6: top is the upper chamber passage 61 that separates of left and right and cavity of resorption passage 62, respectively as the access road of upper chamber 63 and lower chambers 64; Middle and lower part is inner chamber, the piston 8 that can run up and down is provided with in inner chamber, inner chamber is divided into upper chamber 63 and lower chambers 64, upper chamber passage 61 is communicated with upper chamber 63, cavity of resorption passage 62 to be extended to side lower part by hydraulic cylinder 6 top and is communicated with lower chambers 64, hydraulic cylinder 6 sidewall of cavity of resorption passage 62 side has longitudinal bar shaped uncovered, the surface of contact between uncovered surrounding and outer tube 5 inwall is provided with two seals circle 18, thus makes outer tube 5 inwall in uncovered outside become a part for cavity of resorption passage 62.Two liquid outlets 42 of fluidic 4 lower surface dock with the upper chamber passage 61 of hydraulic cylinder upper surface and the entrance of cavity of resorption passage 62 respectively.
Hydraulic cylinder 6 lower end is by cylinder cap 9 capping, and middle body at the bottom of the lid of cylinder cap 9 stretches into hydraulic cylinder 6 lower end, forms the bottom of lower chambers 64.The upper entrance end of described outer tube joint 12 is fixedly sleeved at outer tube 5 lower outside, lower part outlet end is connected with the return line of pump 13, positioning spacer 11 flushes with the lower surface of outer tube 5, and all withstand on the step inside outer tube joint 12 upper entrance end, the fluidic 4 of outer tube 5 and inside thereof, hydraulic cylinder 6, cylinder cap 9 and positioning spacer 11 compress by described upper press cover 2 and outer tube joint 12 in the axial direction mutually, make that circumference does not occur between each parts and relatively rotate.In the axial direction, the gap that can circulate for liquid is left between the side surfaces of fluidic 4, hydraulic cylinder 6 and cylinder cap 9 and outer tube 5 inwall, the drain hole 43 of fluidic 4 sidepiece communicates with described gap, and the liquid of discharging from described drain hole flows downward by gap and discharged by outer tube 5 lower part outlet end.
Flowmeter 14 is equipped with the pipeline at flowmeter joint 1 place, to measure the data on flows of the working fluid flowing through its inside; On the pipeline at upper press cover 2 and outer tube joint 12 place, and pressure transducer 15 is equipped with in hydraulic cylinder 6, upper chamber passage 61 and cavity of resorption passage 62 respectively, with the pressure that the working fluid measured is formed at upper press cover 2, outer tube joint 12, upper chamber passage 61 and cavity of resorption passage 62 place, the pressure of above-mentioned 4 place's pipelines is corresponding in turn to the upper cavity pressure of the inlet pressure of pick-up unit, top hole pressure and internal hydraulic pressure cylinder and lower cavity pressure.Described flowmeter 14 is connected with data acquisition unit 16 by data line with pressure transducer 15, data acquisition unit 16 is connected with computing machine 17 by data line, and the pressure data that the pressure transducer 15 on the data on flows that flowmeter 14 measures and everywhere pipeline measures is undertaken gathering and storing by data acquisition unit 16 and computing machine 17.
In order to realize fluidic 4, hydraulic cylinder 6, cylinder cap 9, between positioning spacer 11 and outer tube 5, better circumference is fixing, guarantee, between parts, relatively rotating in circumference does not occur, the boss of at least two position circumference symmetries is arranged with outside described hydraulic cylinder 6 upper surface, described boss is stuck in periphery bottom fluidic 4, stops fluidic 4, relative to hydraulic cylinder 6, circumference occurs and rotates (shown in Fig. 2,4); Located fixing (shown in Fig. 1,2) by straight pin 10 circumference between described cylinder cap 9 and hydraulic cylinder 6; In addition, cylinder cap 9 top peripheral is provided with radial boss 91, radial boss 91 inserts in the groove with matching of positioning spacer 11 upper surface, fixing with the circumference location reached between cylinder cap 9 and positioning spacer 11, positioning spacer 11 periphery is provided with radial boss 111 equally, radial boss 111 inserts in outer tube 5 bottom inside groove with matching, to reach the circumference location fixing (shown in Fig. 2,3,5,6) between positioning spacer 11 and outer tube 5.
Described cylinder cap 9 locates fixed form with adopting following circumference between hydraulic cylinder 6: be equipped with cylinder pin hole corresponding to position at the bottom of the lid of cylinder cap 9 and on the surface of contact of hydraulic cylinder 6 lower surface, insert straight pin 10 in hole.(shown in Fig. 1,2).
Upper press cover 2 lower part outlet end is fixedly connected with by set nut 3 with outer tube 5 top entry end, specifically as shown in Figure 1: bottom upper press cover 2, be provided with annular boss, the bottom surface of annular boss is pressed on the end face of outer tube 5 top entry end, the part that upper press cover 2 is positioned at below annular boss stretches into outer tube 5 top entry end, annular boss is identical with the external diameter of outer tube 5 top entry end, and set nut 3 is tightly placed in annular boss outside and is connected by screw thread with the outer tube 5 below annular boss.Particularly, the part that upper press cover 2 is positioned at more than annular boss is passed from the center pit at set nut 3 top, on the upper surface that set nut 3 is tightly placed in annular boss and side surface, the sidepiece inner peripheral surface of set nut 3 is connected by screw thread with between the outer tube 5 top peripheral face below annular boss simultaneously.Ensure that the firm connection between upper press cover 2 and outer tube 5 thus, and dismounting is more convenient.
As shown in Figure 1, for the ease of distance, adjustment frequency of operation that regulating piston about 8 runs, thus meet different mensuration needs, piston 8 upper surface is provided with bellmouth, and the mode be connected and fixed with the conical surface in hole loads cone governor bar 7.
As shown in Figure 1, in order to ensure that described drilling well fluidic pick-up unit has good sealing, the surface of contact bottom upper press cover 2 between outer peripheral face and outer tube 5 top inner peripheral surface is provided with at least two seals circle 18; O-ring seal 18 together with surface of contact between upper press cover 2 lower surface with fluidic 4 upper surface is provided with at least; O-ring seal 18 together with the upper chamber passage 61 of hydraulic cylinder 6 upper surface is respectively equipped with at least with the entrance surrounding of cavity of resorption passage 62; O-ring seal 18 together with outer tube 5 upper periphery face is provided with at least with the surface of contact of set nut 3 sidepiece inner peripheral surface; O-ring seal 18 together with surface of contact between outer tube 5 lower, outer perimeter face with outer tube joint 12 inner peripheral surface is provided with at least.
Described pump 13 is that water pump, steam piano etc. can be carried liquid or make the equipment of fluid pressurization.
The output pipe end of described pump 13 connects top connection 131, and the return line end of pump 13 connects lower sub 132; Lower part outlet end, the flowmeter joint 1 of the upper entrance end of top connection 131 and flowmeter joint 1, lower sub 132 and outer tube joint 12 are all fixedly connected with by screw thread with upper press cover 2 and between outer tube joint 12 with outer tube 5.In addition, the connected mode of each pipeline flow meter 14 and pressure transducer 15 is and is threaded, particularly, flowmeter joint 1, upper press cover 2 are equipped with outer tube joint 12 surface the radial tapped through hole be communicated with its internal duct, flowmeter joint 1 is by the radial tapped through hole incoming stream gauge 14 on its surface, and upper press cover 2 and outer tube joint 12 are respectively by radial tapped through hole cut-in pressure sensor 15 surperficial separately.Outer tube 5 surface is respectively equipped with the radial tapped through hole (tapped through hole be wherein communicated with upper chamber passage 61 runs through the sidewall of outer tube 5 and hydraulic cylinder 6) be communicated with cavity of resorption passage 62 with the upper chamber passage 61 of hydraulic cylinder 6, and difference cut-in pressure sensor 15.
Before carrying out fluidic detection, first carry out the installation of described drilling well fluidic pick-up unit, comprise the steps: (1) by hydraulic cylinder 6, outer tube 5 and upper press cover 2 everywhere O-ring seal 18 be in place, (2) cone governor bar 7 inserted the bellmouth of piston 8 upper surface and compress, locate, (3) piston 8 is loaded in hydraulic cylinder 6 inner chamber, with cylinder cap 9 by hydraulic cylinder 6 lower end capping and by straight pin 10 by the two circumference location, (4) positioning spacer 11 cover is installed to cylinder cap 9 top, make the radial boss at cylinder cap 9 top be inserted in the groove with matching of positioning spacer 11 upper surface, (5) by hydraulic cylinder 6, cylinder cap 9 and positioning spacer 11 load in outer tube 5, in installation process, regulator solution cylinder pressure 6 is relative to the circumferential position of outer tube 5, outer tube 5 and the threaded hole of hydraulic cylinder 6 in upper chamber passage 61 side for setting pressure sensor 15 are alignd, form the tapped through hole be communicated with upper chamber passage 61, the tapped through hole of outer tube 5 in cavity of resorption passage 62 side for setting pressure sensor 15 is communicated with cavity of resorption passage 62 simultaneously, after above-mentioned position is adjusted, the radial boss of positioning spacer 11 periphery is inserted in outer tube 5 bottom inside groove with matching, again outer tube joint 12 is connected with outer tube 5 lower thread and tightens, (6) fluidic 4 is loaded from outer tube 5 top entry end, make fluidic 4 lower surface near hydraulic cylinder upper surface, and the boss of periphery, hydraulic cylinder 6 upper surface is stuck in periphery bottom fluidic 4, then will inserts from outer tube 5 top entry end bottom upper press cover 2 and dock with the liquid inlet 41 of fluidic 4 upper surface, (7) set nut 3 be inserted in from upper press cover 2 top and be connected with outer tube 5 by screw thread, then flowmeter joint 1 is connected with upper press cover 2 by screw thread, (8) the output pipe top connection 131 of pump 13 be connected with flowmeter joint 1 inlet end by screw thread, the lower sub 132 of return line is connected with outer tube joint 12 endpiece by screw thread, by flowmeter 14 from the radial tapped through hole access flowmeter joint 1, again by outer tube 5 and the radial tapped through hole cut-in pressure sensor 15 of hydraulic cylinder 6 in upper chamber passage 61 side, similarly, all by radial tapped through hole cut-in pressure sensor 15 on cavity of resorption passage 62 side of outer tube 5, upper press cover 2 and outer tube joint 12, flowmeter 14 and the pressure transducer 15 be connected with each pipeline are connected with data acquisition unit 16 by data line, are connected by data acquisition unit 16 by data line with computing machine 17.
When detecting, first open pump 13, working fluid is input in proving installation by output pipe, in proving installation, working fluid is successively by flowmeter joint 1 and upper press cover 2, fluidic 4 is entered by liquid inlet 41, fluidic 4 is driven to work, in the upper chamber 63 that working fluid is periodically dispensed to hydraulic cylinder 6 by running order fluidic 4 (by the upper chamber passage 61 that is attached thereto in two liquid outlets 42 and hydraulic cylinder 6 and cavity of resorption passage 62) and lower chambers 64, promote piston 8 to pump, upper chamber 63 is periodically oppositely expelled back in fluidic 4 by identical path with the working fluid in lower chambers 64 again by the piston 8 be kept in motion, namely in upper chamber passage 61 and cavity of resorption passage 62, the inlet and outlet alternate cycles of working fluid is carried out.The gap that can circulate for liquid is left between the side surface of fluidic 4, hydraulic cylinder 6 and cylinder cap 9 and outer tube 5 inwall, the working fluid flowing back to fluidic 4 enters gap by drain hole 43, enter outer tube joint 12 by gap again, flow back to pump 13 finally by return line.In the cyclic process of working fluid, turn-on data collector 16 and computing machine 17, to from flowmeter 14 and the data on flows that measures of pipeline upward pressure sensor 15 and pressure data gather and store everywhere, the collection of described data and memory technology are prior art conventional in this area, also commercially available data acquisition equipment and software be can adopt, such as, the BHDC type data acquisition unit of the sky, Beijing Hua Ce Science and Technology Ltd. and special collection storing software adopted.
Described drilling well fluidic structure of the detecting device and parts form relatively simple and easy, easy accessibility, be conducive to replacing and the installation of the fluidic of different parameters in test process, when the inner structure parameter of fluidic 4 needs adjustment or changes the fluidic of other parameters, only need to close data acquisition unit 16 and pump 13, unload flowmeter joint 1 (comprise and unload flowmeter 14 on it and pressure transducer 15) successively, set nut 3 and upper press cover 2, take out after fluidic 4 carries out parameter adjustment and reinstall original position, or directly change the fluidic of other parameters in situ.Upper press cover 2 is loaded outer tube 5, and is fixedly connected with by set nut 3, be finally in place by flowmeter joint 1, namely complete re-assemblying of pick-up unit after playbacking by fluidic 4.
Above-mentioned embodiment is only for illustration of the present invention, and wherein the structure of each parts and connection to arrange etc. and can change to some extent, and every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (9)
1. a drilling well fluidic pick-up unit, is characterized in that comprising: flowmeter joint (1), upper press cover (2), outer tube (5), outer tube joint (12), pump (13), data acquisition unit (16) and computing machine (17); Described outer tube (5) inside is equipped with fluidic (4), hydraulic cylinder (6), cylinder cap (9) and positioning spacer (11) from top to bottom successively; The output pipe of pump (13) is fixedly connected with flowmeter joint (1) upper entrance end, flowmeter joint (1) lower part outlet end is fixedly connected with upper press cover (2) top entry end, and upper press cover (2) lower part outlet end inserts outer tube (5) top entry end and is fixedly connected with;
Inner at outer tube (5), upper press cover (2) lower part outlet end is pressed on fluidic (4) upper surface, and docks with the liquid inlet (41) of fluidic (4) upper surface; Two liquid outlets (42) that fluidic (4) lower surface is pressed on hydraulic cylinder (6) upper surface and fluidic (4) lower surface are communicated with lower chambers (64) with the upper chamber (63) of hydraulic cylinder (6) respectively, be piston (8) between upper chamber (63) and lower chambers (64), hydraulic cylinder (9) lower end is by cylinder cap (9) capping;
Outer tube joint (12) upper entrance end is fixedly sleeved at outer tube (5) lower outside, and lower part outlet end is connected with the return line of pump (13); Positioning spacer (11) flushes with the lower surface of outer tube (5), all withstands on the step inside outer tube joint (12) upper entrance end; In the axial direction, leave the gap that can circulate for liquid between the side surfaces of fluidic (4), hydraulic cylinder (6) and cylinder cap (9) and outer tube (5) inwall, the drain hole of fluidic (4) sidepiece communicates with described gap;
Flowmeter (14) pipeline at flowmeter joint (1) place is equipped with; Upper press cover (2) and outer tube joint (12), and the pipeline at hydraulic cylinder (6) interior upper chamber (63) and lower chambers (64) inlet end place is equipped with pressure transducer (15) respectively; Flowmeter (14) is connected with data acquisition unit (16) by data line with pressure transducer (15), and data acquisition unit (16) is connected with computing machine (17) by data line.
2. drilling well fluidic pick-up unit according to claim 1, it is characterized in that: the boss being arranged with at least two position circumference symmetries outside hydraulic cylinder (6) upper surface, the periphery, bottom that described boss is stuck in fluidic (4) is rotated to stop fluidic (4), relative to hydraulic cylinder (6), circumference occurs; Cylinder cap (9) is located fixing with hydraulic cylinder (6) by straight pin (10) circumference; Cylinder cap (9) top peripheral is provided with radial boss (91), and radial boss (91) inserts in the groove with matching of positioning spacer (11) upper surface; Positioning spacer (11) periphery is provided with radial boss (111), and radial boss (111) inserts in outer tube (5) bottom inside groove with matching.
3. drilling well fluidic pick-up unit according to claim 2, it is characterized in that: cylinder cap (9) and hydraulic cylinder (6) by the circumference location fixed form of straight pin (10) are: be equipped with cylinder pin hole corresponding to position at the bottom of the lid of cylinder cap (9) and on the surface of contact of hydraulic cylinder (6) lower surface, insert straight pin (10) in hole.
4. drilling well fluidic pick-up unit according to claim 1 and 2, it is characterized in that: upper press cover (2) lower part outlet end is fixedly connected with by set nut (3) with outer tube (5) top entry end, mode is as follows: upper press cover (2) bottom is provided with annular boss, the bottom surface of annular boss is pressed on the end face of outer tube (5) top entry end, the part that upper press cover (2) is positioned at below annular boss stretches into outer tube (5) top, annular boss is identical with the external diameter of outer tube (5) top entry end, set nut (3) is tightly placed in annular boss outside and is connected by screw thread with the outer tube (5) below annular boss.
5. drilling well fluidic pick-up unit according to claim 1 and 2, it is characterized in that: piston (8) upper surface is provided with bellmouth, the mode be connected and fixed with the conical surface in hole loads cone governor bar (7).
6. drilling well fluidic pick-up unit according to claim 4, is characterized in that: the surface of contact between upper press cover (2) bottom outer peripheral face and outer tube (5) top inner peripheral surface is provided with at least two seals circle (18); O-ring seal (18) together with surface of contact between upper press cover (2) lower surface with fluidic (4) upper surface is provided with at least; Upper chamber (63) and lower chambers (64) the entrance surrounding of hydraulic cylinder upper surface are respectively equipped with at least one O-ring seal (18); O-ring seal (18) together with outer tube (5) upper periphery face is provided with at least with the surface of contact of set nut (3) sidepiece inner peripheral surface; O-ring seal (18) together with surface of contact between outer tube (5) lower, outer perimeter face with outer tube joint (12) inner peripheral surface is provided with at least.
7. drilling well fluidic pick-up unit according to claim 1 and 2, is characterized in that: the output pipe end of described pump (13) connects top connection (131), and return line end connects lower sub (132); Lower part outlet end, the flowmeter joint (1) of the upper entrance end of top connection (131) and flowmeter joint (1), lower sub (132) and outer tube joint (12) are all fixedly connected with by screw thread with upper press cover (2) and between outer tube joint (12) with outer tube (5).
8. drilling well fluidic pick-up unit according to claim 7, is characterized in that: flowmeter joint (1) is by the radial tapped through hole incoming stream gauge (14) on its surface; Upper press cover and outer tube joint are respectively by radial tapped through hole cut-in pressure sensor (15) surperficial separately; Outer tube (5) surface is respectively equipped with the radial tapped through hole be communicated with lower chambers inlet end (cavity of resorption passage) with hydraulic cylinder upper chamber inlet end (upper chamber passage), described tapped through hole cut-in pressure sensor (15) respectively on outer tube (5) surface.
9. drilling well fluidic pick-up unit according to claim 3, is characterized in that: described pump (13) can be carried liquid for water pump, steam piano etc. or make the equipment of fluid pressurization.
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| CN201510491491.9A CN105181294A (en) | 2015-08-11 | 2015-08-11 | Drilling fluidic element detection device |
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| CN204903128U (en) * | 2015-08-11 | 2015-12-23 | 中国石油集团渤海钻探工程有限公司 | Fluidic element detection device for well drilling |
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Application publication date: 20151223 |