CN204175287U - Oil drilling well depth survey system - Google Patents
Oil drilling well depth survey system Download PDFInfo
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- CN204175287U CN204175287U CN201420592258.0U CN201420592258U CN204175287U CN 204175287 U CN204175287 U CN 204175287U CN 201420592258 U CN201420592258 U CN 201420592258U CN 204175287 U CN204175287 U CN 204175287U
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- field controller
- range finder
- laser range
- sensor
- well depth
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Abstract
The utility model discloses a kind of oil drilling well depth survey system, it comprises drawworks sensor (5), pressure sensor (2), weight transduser (4), laser range finder (1), field controller (7) and supervisory work terminal, described drawworks sensor (5) is fixed on winch (6) drum shaft by rotating shaft, described pressure sensor (2) has two, is separately positioned on upper button rotation direction oil inlet end and the shackle rotation direction oil inlet end of hydraulic tongs (3) motor oil circuit; Described weight transduser (4) is arranged on the dead line anchor of derrick (9) below, described laser range finder (1) is fixed on hook (8), described drawworks sensor (5), pressure sensor (2) are connected with field controller (7) by cable with weight transduser (4), and described laser range finder (1) is connected with field controller (7); Field controller (7) is connected with supervisory work terminal.System wiring is simple, simple to operate.
Description
Technical field
The utility model relates to a kind of oil drilling well depth survey system.
Background technology
In Process of Oil Well Drilling in the past, well depth survey usually adopts drawworks sensor to measure the number of turns and is combined the mode calculated with suspending weight, its essence is that being multiplied by winch steel cable drum diameter by winch number of turns value obtains steel cable and roll out or be involved in length, and then obtain drilling rod decline or climb, coordinate with hook weigh change and calculate, show that drill bit makes a trip mobile numerical value, and then obtain bit location and well depth numerical value.The accurate corresponding of measurement parameter and depth of stratum value must be ensured in order to accurately obtain each formation parameter in well logging, therefore, have employed the method measuring run of steel in advance; Be specially and first measure every root run of steel and number, during lower instrument, carry out according to descended drilling rod numbering that length is cumulative obtains well depth value accurately, moving down distance (well depth change) in real time or being obtained by drawworks sensor in single drill pipe going down process.
The numerical value that in above-mentioned two kinds of well depth survey methods, the first measurement draws is inaccurate, it is caused by many factors, first it is different to be that winch capstan winch each layer steel cable curls up diameter, inaccurate by the mode of diameter calculated length, and add drilling rod metering well depth value all can have certain error at every turn; Again driller creep into or in the process that makes a trip winch mode of operation various, suspending weight value also can change due to drilling rod and wall friction or drill bit jam etc., therefore can produce in real process and the different situation of programming well depth metering method, bring well depth error in dipping; These errors build up, and it is larger to creep into darker error amount, depart from comparatively large and lose meaning to last measured value and actual value.The second metering system measures length owing to obtaining every root drilling rod, adopts more loaded down with trivial details, increase drilling effort in drilling process; Field condition is limited in addition, and drilling rod numbering is not easily differentiated, and needs manually input drilling rod numbering at every turn, increases operational sequence.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of oil drilling well depth survey system is provided, this system has the cooperation of multiple sensor to eat use, certainty of measurement is high, and the data summarization of each sensor to field controller, then is sent to supervisory work terminal, simplify wiring, saved cost, whole measuring system measuring process is simple, does not need loaded down with trivial details manual operation.
The purpose of this utility model is achieved through the following technical solutions: oil drilling well depth survey system, it comprises drawworks sensor, pressure sensor, weight transduser, laser range finder, field controller and supervisory work terminal composition, described drawworks sensor is fixed on winch drum shaft by rotating shaft, described pressure sensor has two, is separately positioned on upper button rotation direction oil inlet end and the shackle rotation direction oil inlet end of hydraulic tongs motor oil circuit; Described weight transduser to be arranged on below derrick on dead line anchor, described laser range finder is fixed on hook, described drawworks sensor, pressure sensor are connected with field controller by cable with weight transduser, and described laser range finder is connected with field controller; Field controller is connected with supervisory work terminal.
Described laser range finder and field controller are by power and communication coaxial cable is connected, and field controller is connected by coaxial cable with supervisory work terminal.
Described drawworks sensor is a rotary encoder.
The beneficial effects of the utility model are: the utility model provides a kind of oil drilling well depth survey system, this system has the cooperation of multiple sensor to eat use, certainty of measurement is high, the data summarization of each sensor is to field controller, be sent to supervisory work terminal again, simplify wiring, save cost, whole measuring system measuring process is simple, does not need loaded down with trivial details manual operation.
Accompanying drawing explanation
Fig. 1 is drilling well well depth survey system for field mounting structure block diagram;
In figure, 1-laser range finder, 2-pressure sensor, 3-hydraulic tongs, 4-weight transduser, 5-drawworks sensor, 6-winch, 7-field controller, 8-hook, 9-derrick.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1, oil drilling well depth survey system, it comprises drawworks sensor 5, pressure sensor 2, weight transduser 4, laser range finder 1, field controller 7 and supervisory work terminal composition, described drawworks sensor 5 is fixed on winch 6 drum shaft by rotating shaft, described pressure sensor 2 has two, is separately positioned on upper button rotation direction oil inlet end and the shackle rotation direction oil inlet end of hydraulic tongs 3 motor oil circuit; Described weight transduser 4 to be arranged on below derrick 9 on dead line anchor, described laser range finder 1 is fixed on hook 8, described drawworks sensor 5, pressure sensor 2 are connected with field controller 7 by cable with weight transduser 4, and described laser range finder 1 is connected with field controller 7; Field controller 7 is connected with supervisory work terminal.
Described laser range finder 1 and field controller 7 are by power and communication coaxial cable is connected, and field controller 7 is connected by coaxial cable with supervisory work terminal.
Described drawworks sensor 5 is a rotary encoder.
When debuging examination at the beginning of system, laser range finder is fixed on hook, be hooked in greatly under winch controls and move up and down, field controller real time record laser range finder shift value and winch number of turns value, form the one-to-one relationship of each number of turns point value and shift value, and count program, be hooked in greatly derrick and debugged rear dismounting laser range finder, during normal drilling well, automatically read hook height value according to winch number of turns point value program; When creeping into, hydraulic tongs pressure sensor provides buckle press signal, and weight transduser provides the change of corresponding suspending weight value, and it is that drilling rod adds that director demon judges, hook height changing value adds up, and obtains well depth and bit location value; In like manner, in round trip process, can obtain drill bit real time position value equally, well depth data are constant.System is owing to have employed the number of turns point value mode corresponding with laser ranging value, and number of turns point value to be sub-divided into after decimal one, and record calibration is thinner; Accurately, institute's record value is accurate in laser range finder range finding; System does not have steel cable to curl up the error of diameter change formation and accumulative effect.
Claims (3)
1. oil drilling well depth survey system, it is characterized in that: it comprises drawworks sensor (5), pressure sensor (2), weight transduser (4), laser range finder (1), field controller (7) and supervisory work terminal, described drawworks sensor (5) is fixed on winch (6) drum shaft by rotating shaft, described pressure sensor (2) has two, is separately positioned on upper button rotation direction oil inlet end and the shackle rotation direction oil inlet end of hydraulic tongs (3) motor oil circuit; Described weight transduser (4) is arranged on the dead line anchor of derrick (9) below, described laser range finder (1) is fixed on hook (8), described drawworks sensor (5), pressure sensor (2) are connected with field controller (7) by cable with weight transduser (4), and described laser range finder (1) is connected with field controller (7); Field controller (7) is connected with supervisory work terminal.
2. oil drilling well depth survey system according to claim 1, it is characterized in that: described laser range finder (1) and field controller (7) are by power and communication coaxial cable is connected, and field controller (7) is connected by coaxial cable with supervisory work terminal.
3. oil drilling well depth survey system according to claim 1, is characterized in that: described drawworks sensor (5) is a rotary encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420592258.0U CN204175287U (en) | 2014-10-14 | 2014-10-14 | Oil drilling well depth survey system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420592258.0U CN204175287U (en) | 2014-10-14 | 2014-10-14 | Oil drilling well depth survey system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175287U true CN204175287U (en) | 2015-02-25 |
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| CN201420592258.0U Active CN204175287U (en) | 2014-10-14 | 2014-10-14 | Oil drilling well depth survey system |
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| CN (1) | CN204175287U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295288A (en) * | 2014-10-14 | 2015-01-21 | 四川航天电液控制有限公司 | Petroleum drilling well depth measuring system and method |
| CN105221135A (en) * | 2015-09-17 | 2016-01-06 | 航天科工惯性技术有限公司 | For well depth survey device and the measuring method of wireless drilling system |
-
2014
- 2014-10-14 CN CN201420592258.0U patent/CN204175287U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295288A (en) * | 2014-10-14 | 2015-01-21 | 四川航天电液控制有限公司 | Petroleum drilling well depth measuring system and method |
| CN104295288B (en) * | 2014-10-14 | 2017-02-01 | 四川航天电液控制有限公司 | petroleum drilling well depth measuring system and method |
| CN105221135A (en) * | 2015-09-17 | 2016-01-06 | 航天科工惯性技术有限公司 | For well depth survey device and the measuring method of wireless drilling system |
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| C14 | Grant of patent or utility model | ||
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