CN201688866U - Open duplex rotor meter for compound logging instrument - Google Patents
Open duplex rotor meter for compound logging instrument Download PDFInfo
- Publication number
- CN201688866U CN201688866U CN201020134631XU CN201020134631U CN201688866U CN 201688866 U CN201688866 U CN 201688866U CN 201020134631X U CN201020134631X U CN 201020134631XU CN 201020134631 U CN201020134631 U CN 201020134631U CN 201688866 U CN201688866 U CN 201688866U
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- rotor
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- open
- inlet
- drilling fluid
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Abstract
An open duplex rotor meter computing technique different from the conventional outlet baffle flow probe and inlet pump stroke meterage is characterized in that the same rotameter is used for measuring the flow rate at an inlet and an outlet accurately, so as to achieve the purpose of finding the overflow and circulation loss events in a well casing during the boring process at the initial stage and alarming by comparing the real-time flow at the inlet and the outlet; the functions of finding overflow and circulation loss events in the well casing at the initial stage and alarming during the pulling out or running of a drill by comparing the reduction and increase of the total flow at the inlet and the total flow at the outlet and the volume of a drilling tool during the pulling out or running of the drill; and the flow at the inlet and the conventional pump stroke flow are compared, when the pump stroke flow is larger than certain value of the flow at the inlet, the result shows that the working component of the pump is abraded or the pump is required to be repaired due to the poor water pumping performance.
Description
Technical field: the utility model relates to the petroleum drilling scene, the flowmeter that comprehensive logging instrument is accurately measured continuously to drilling fluid entry and exit flow.
Background technology: the comprehensive logging instrument drilling fluids outlet flow mainly adopts at the outlet place measurement of plate washer flow sensor is installed at present, is the measurement to the rate of discharge relative quantity.The water rate is calculated inlet flow rate on inlet flow rate employing pumping speed, cylinder sleeve volume and the pump of drilling fluid, but the last water rate of pump is subjected to water feeding mode, cylinder sleeve and the wearing for piston influence of pump, and the calculating of inlet flow rate can not reach in real time accurately.Exist the drilling fluid entry and exit to use different metering systems, can not contrast; The outlet measuring accuracy is not high, the on-the-spot installation site of every mouthful of well of rate of discharge probe difference.
The utility model content: open duplex rotor meter, adopting uses the same method and pop one's head in carries out accurately, measures reliably drilling fluid entry and exit flow, reaches pit shaft overflow or leakage early period of origination are found timely and reported to the police.
The utility model is achieved in that sees Figure of description, is the structural representation sectional view after outlet drilling fluid open rotor flowmeter is installed.Among the figure 1 be hydraucone annular space drilling liquid flow to, 2 is cone-type spiral rotors among the figure, 3 is helical rotor rosette edge induction teeth among the figure, and 4 is helical rotor open type fixed supports among the figure, and 5 is near switch among the figure, 6 is helical rotor tail end conical bearing framves among the figure, 7 is to sit at the bottom of the spinner-type flowmeter among the figure, and 8 is flared pipes among the figure, and 9 is flared pipe construction opening arc hush panel among the figure, 10 is cables among the figure, and 11 is square kellys among the figure.
As shown in the figure, produce among the figure 2 cone-type spiral rotor earlier, induction tooth in 3 helical rotor rosette edge among the figure, 4 helical rotor open type fixed support among the figure, among the figure 5 near switch, 6 helical rotor tail end conical bearing frame among the figure, sit at the bottom of 7 the spinner-type flowmeter among the figure, 9 flared pipe construction opening arc hush panel among the figure, be assembled into the open rotor flowmeter by the schematic structure position, in flared pipe under the condition of no drilling fluid, open suitable shaped aperture in the bottom of oviduct 8, with the open rotor flowmeter that assembles from opening part is packed annular space between flared pipe and the square kelly into, flared pipe construction opening arc hush panel 9 and flared pipe 8 are carried out sealing and fixing, outlet drilling fluid open rotor flowmeter has just installed like this, and cable 10 is connected with comprehensive logging instrument; Parallel installation open rotor flowmeter and be wired to comprehensive logging instrument in pump intake piping equally.By inlet, outlet mud flow rate being measured comparatively accurately, relatively, reach the operating mode whether pit shaft leakage, overflow and pump taken place and carry out in time, accurately, monitor reliably.
Owing to adopted such scheme, the entry and exit drilling fluid adopts same principle, and same probe is accurately measured flow, and comparability is strong; Overflow, leakage incident initial stage can take place in the pit shaft in creeping into just can be found and report to the police; Rise, down during driller's condition, the minimizing and the increase of inlet flow rate total amount and rate of discharge total amount and drilling tool volume are compared, just can find and report to the police at overflow, the leakage incident initial stage of rising, take place in driller's condition well-sinking down; Inlet flow rate and present pump swash of wave amount are compared,, illustrate that the bad need of water are handled on the service part wearing and tearing of pump or the pump, reach monitoring the drill pump operating mode when pump swash of wave amount during greater than the inlet flow rate certain value.
Description of drawings: the utility model is further specified below in conjunction with drawings and Examples.
Accompanying drawing is the structural representation sectional view of the utility model embodiment.
Among the figure 1. hydraucone annular space drilling liquid flows to; 2. cone-type spiral rotor; 3. tooth is responded at helical rotor rosette edge; 4. helical rotor open type fixed support; 5. near switch; 6. helical rotor tail end conical bearing frame; 7. sit at the bottom of the spinner-type flowmeter; 8. flared pipe; 9. flared pipe construction opening arc hush panel; 10. cable; 11: square kelly.
Embodiment: as shown in the figure, produce among the figure 2 cone-type spiral rotor earlier, induction tooth in 3 helical rotor rosette edge among the figure, 4 helical rotor open type fixed support among the figure, among the figure 5 near switch, 6 helical rotor tail end conical bearing frame among the figure, sit at the bottom of 7 the spinner-type flowmeter among the figure, 9 flared pipe construction opening arc hush panel among the figure, be assembled into the open rotor flowmeter by the schematic structure position, in flared pipe under the condition of no drilling fluid, open suitable shaped aperture in the bottom of oviduct 8, with the open rotor flowmeter that assembles from opening part is packed annular space between flared pipe and the square kelly into, flared pipe construction opening arc hush panel 9 and flared pipe 8 are carried out sealing and fixing, outlet drilling fluid open rotor flowmeter has just installed like this, and cable 10 is connected with comprehensive logging instrument; When turn on pump creeps into, the well head drilling fluid flows from bottom to top as 1 direction among the figure, drilling fluid makes its rotation when flowing through cone-type spiral rotor 2, the helical rotor rosette edge induction tooth 3 that is installed on the cone-type spiral rotor 2 also rotates simultaneously, the open close mistake of induction between cog is near switch 5, make it near the same counter-rotatings that on off operating modes take place of switch 5, be transformed into the flow velocity of drilling fluid by counting circuit, the empty area of flow velocity multiplication ring just obtains exporting mud flow rate.In like manner (filtrator back) installed the open rotor flowmeter and just can accurately be measured the inlet mud flow rate in the water-line of drilling fluid pump.In the well logging process, drilling fluid inlet, rate of discharge are measured accurately by evolution formula spinner-type flowmeter, well logging software compares inlet, rate of discharge, difference surpasses certain value and regular hour and corresponding work state (difference threshold, time threshold, state thresholding), send corresponding warning message when reaching the threshold value that the field staff sets and offer engineering technical personnel and relevant managerial personnel, realize accurate, reliable warning function the well control anomalous event initial stage.
Claims (4)
1. open duplex rotor meter, it is characterized in that: drilling fluid goes out, inlet is measured its flow accurately with identical probe, near switch, helical rotor tail end conical bearing frame, helical rotor open type fixed support is assembled on the spinner-type flowmeter base, again the spinner-type flowmeter base is fixed on the flared pipe construction opening arc hush panel, at last with the cone-type spiral rotor, helical rotor rosette edge is responded in the helical rotor open type fixed support of packing into after tooth is assembled, spinner-type flowmeter is except that flared pipe construction opening arc hush panel, and remaining part all is immersed in the drilling fluid.
2. open duplex rotor meter according to claim 1 is characterized in that: spinner-type flowmeter is except that flared pipe construction opening arc hush panel, and remaining part all is immersed in the drilling fluid.
3. open duplex rotor meter according to claim 1 is characterized in that: the drilling fluid entry and exit are measured its flow accurately with identical probe.
4. open duplex rotor meter according to claim 1, it is characterized in that: inlet open rotor flowmeter is installed in parallel in the drilling fluid pump water-line, outlet open rotor flowmeter is installed in the annular space of flared pipe and square kelly, and the tapering of cone-type spiral rotor and drilling liquid flow are to relative.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020134631XU CN201688866U (en) | 2010-02-20 | 2010-02-20 | Open duplex rotor meter for compound logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020134631XU CN201688866U (en) | 2010-02-20 | 2010-02-20 | Open duplex rotor meter for compound logging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201688866U true CN201688866U (en) | 2010-12-29 |
Family
ID=43377146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020134631XU Expired - Fee Related CN201688866U (en) | 2010-02-20 | 2010-02-20 | Open duplex rotor meter for compound logging instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201688866U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456659A (en) * | 2020-04-30 | 2020-07-28 | 中国石油天然气集团有限公司 | Monitoring method for monitoring overflow leakage in drilling process |
-
2010
- 2010-02-20 CN CN201020134631XU patent/CN201688866U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456659A (en) * | 2020-04-30 | 2020-07-28 | 中国石油天然气集团有限公司 | Monitoring method for monitoring overflow leakage in drilling process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20140220 |