CN106593407B - Logging instrument calibration method and logging instrument calibration device for implementing same - Google Patents
Logging instrument calibration method and logging instrument calibration device for implementing same Download PDFInfo
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- CN106593407B CN106593407B CN201611083992.4A CN201611083992A CN106593407B CN 106593407 B CN106593407 B CN 106593407B CN 201611083992 A CN201611083992 A CN 201611083992A CN 106593407 B CN106593407 B CN 106593407B
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004164 analytical calibration Methods 0.000 title claims abstract description 15
- 238000004804 winding Methods 0.000 claims abstract description 18
- 230000002441 reversible effect Effects 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 17
- 239000004568 cement Substances 0.000 claims description 14
- 239000011159 matrix material Substances 0.000 claims description 14
- 238000013022 venting Methods 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
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- 230000005484 gravity Effects 0.000 abstract description 2
- 238000004088 simulation Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
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- 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
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Abstract
The invention discloses a logging instrument calibration method and a logging instrument calibration device for implementing the method. The logging instrument calibration device comprises a standard well fixedly arranged on a ground foundation, and a well bore with a well shaft horizontally arranged is arranged in the standard well; the device comprises a well head device and a filling device, wherein the well head device comprises a traction rope and a logging cable which relatively pull the instrument to be tested in the opposite direction in the well shaft direction, and the traction rope and the logging cable are connected to two relatively independent winding drums or connected to the same winding drum. In the invention, the instrument to be measured is pulled to move in the well hole along the well shaft direction extending horizontally in a traction rope dragging mode so as to simulate the working condition that the logging instrument falls down in an oil pipe by gravity in actual logging, so that the instrument to be measured can move in the well hole without dead weight, the simulation of the actual working condition of the logging instrument is completed, and the calibration of the logging signal of the logging instrument is realized, therefore, the calibration method is suitable for a box-type structured standard well and has the advantage of low calibration cost.
Description
Technical Field
The invention relates to a logging instrument calibration method and a logging instrument calibration device for implementing the method.
Background
The well head device is a necessary device for multiple well logging operations such as electrical logging, perforation, well wall coring and the like, and the quality of the performance of the well head device directly influences the accuracy of test data and the timeliness of the operation. At present, there are many standard wells built at home and abroad, but the conventional standard wells usually adopt the same arrangement form as the actual well bores, for example, the simulated well device disclosed in chinese patent document CN101609170B includes a foundation pit excavated on the actual stratum, a solution tank is buried in the foundation pit, the solution tank is filled with a solution with a certain conductivity, a vertically arranged simulated well bore is inserted in the solution, so as to drop in the simulated well bore by the self weight of the logging instrument, thereby completing the calibration of various parameters of the logging instrument. However, for the radar logging instrument, the radius of the solution tank and the foundation pit matched with the radar logging instrument needs to be correspondingly increased under the influence of the factor that the logging radius of the radar logging instrument is larger, so that the calibration cost of the radar logging instrument is increased.
Disclosure of Invention
The invention aims to provide a logging instrument calibration method with low calibration cost and a logging instrument calibration device special for implementing the logging instrument calibration method.
In order to achieve the above purposes, the technical scheme of the calibration method of the logging instrument is as follows:
the method for calibrating the logging instrument comprises the following steps:
placing an instrument to be tested with a logging cable into a borehole of a standard well, wherein the borehole shaft of the borehole is horizontally arranged, the axis of the instrument to be tested is parallel to or coincided with the borehole shaft of the borehole, a traction rope and the logging cable are connected to the instrument to be tested, and the traction forces of the logging cable and the traction rope acting on the instrument to be tested are mutually opposite in the axial direction of the instrument to be tested;
and secondly, injecting drilling fluid into the borehole, pulling the instrument to be tested to move from one end of the borehole to the other end of the borehole along the borehole shaft of the borehole through a traction rope, and transmitting a signal output by the instrument to be tested through a logging cable.
The technical scheme of the logger calibration device of the invention is as follows:
the calibration device of the logging instrument comprises a standard well fixedly arranged on a ground foundation, wherein a well bore with a well shaft horizontally arranged is arranged in the standard well; the well head device comprises a traction rope and a logging cable which relatively pull the instrument to be detected in the well shaft direction in the opposite direction, and the traction rope and the logging cable are connected on two relatively independent winding drums or connected on the same winding drum.
Defining two end well mouths of a well hole as a first end well mouth and a second end well mouth respectively, wherein one of a traction rope and a logging cable is a first rope body used for pulling an instrument to be tested along the direction of the first end well mouth, and the other one of the traction rope and the logging cable is a second rope body used for pulling the instrument to be tested along the direction of the second end well mouth, and the first rope body and the second rope body both penetrate out of the first end well mouth of the well hole; the wellhead device further comprises a reverse pulley for the second rope body to wrap at the second end wellhead position, and the second rope body is divided into a forward section for pulling the instrument to be tested in the direction of the second end wellhead and a reverse section for pulling the forward section in the direction of the first end wellhead by the reverse pulley.
The wellhead device further comprises a wellhead flange used for plugging and fixing on a second end wellhead of the well, the wellhead flange is provided with an inner end face used for facing the inside of the well and an outer end face opposite to the inner end face, and the reverse pulley is installed on the inner end face of the wellhead flange.
The wellhead device also comprises a support pulley between the reverse pulley and the winding drum corresponding to the second rope body, and the connecting line of the contact points of the support pulley and the reverse pulley for the contact of the reverse sections is parallel to the well axis of the well or coincided with the well axis of the well.
The well shaft direction of definition well bore is fore-and-aft direction, well head device is still including being used for restricting the logging cable at the reel that its corresponds and the mechanism that leads of the radial rocking, leads the mechanism including being used for the roll to support the upper limit pulley of propping in the logging cable top and/or be used for the roll to support the lower limit pulley of propping in the logging cable below and/or be used for the roll to support the left limit pulley in the logging cable left side and/or be used for the roll to support the right limit pulley on the side near the cable right side.
The filling device comprises a main pipeline, one end of the main pipeline is in conduction connection with a well hole, the other end of the main pipeline is in conduction connection with a filling branch used for filling the main pipeline with well measuring liquid and a venting branch used for discharging the well measuring liquid in the main pipeline, a filling pump is arranged on the filling branch, an outlet of the filling branch and an inlet of the venting branch are communicated with a corresponding port of the main pipeline in an intersecting manner, an inlet of the filling branch and an outlet of the venting branch are in conduction connection with a containing pool used for containing the well measuring liquid, and valves used for controlling the on-off of the pipelines are arranged on the filling branch, the venting branch and the main pipeline respectively.
The logging instrument calibration device further comprises a conveying trolley used for conveying the instrument to be tested, the conveying trolley comprises a frame and a bracket arranged on the frame and used for supporting the instrument to be tested, and a lifting mechanism used for lifting the bracket is arranged between the bracket and the frame.
In the invention, the instrument to be measured is pulled to move in the well hole along the well shaft direction extending horizontally by adopting a traction rope dragging mode so as to simulate the working condition that the logging instrument falls down in an oil pipe by gravity in actual logging, so that the instrument to be measured can move in the well hole without dead weight, the simulation of the actual working condition of the logging instrument is completed, and the calibration of the logging signal of the logging instrument is realized.
Drawings
FIG. 1 is a schematic diagram of a standard well of the present invention;
FIG. 2 is a schematic illustration of the wellhead assembly of the tool calibration apparatus of the present invention;
FIG. 3 is a schematic structural view of the pilot mechanism of FIG. 2;
FIG. 4 is a schematic diagram of a pushing device of the logging calibration device of the present invention;
fig. 5 is a schematic structural diagram of a filling device of the logging calibration device.
Detailed Description
The embodiment of the calibration method of the logging instrument comprises the following steps: the method comprises the following steps: placing an instrument to be tested with a logging cable into a borehole of a standard well, wherein the borehole shaft of the borehole is horizontally arranged, the axis of the instrument to be tested is parallel to or coincided with the borehole shaft of the borehole, a traction rope and the logging cable are connected to the instrument to be tested, and the traction forces of the logging cable and the traction rope acting on the instrument to be tested are mutually opposite in the axial direction of the instrument to be tested; and secondly, injecting drilling fluid into the borehole, pulling the instrument to be tested to move from one end of the borehole to the other end of the borehole along the borehole shaft of the borehole through a traction rope, and transmitting a signal output by the instrument to be tested through a logging cable.
The embodiment of the logging calibration device of the invention comprises the following components: the device comprises a standard well, a pushing device, a wellhead device and a filling device. Standard wells: the device is used for simulating an oil well and a vertical well hole arranged on the oil well, and provides a test platform for the calibration of a logging instrument. A pushing device: the requirement of connecting, lifting and conveying the instrument to be measured is met, the instrument to be measured can be conveyed to the position with the same height and the same inclination angle as the well hole of the standard well, so that the operator can conveniently deliver and maintain the instrument to be measured, the safety of the operator and equipment is guaranteed, and the instrument to be measured can smoothly enter the well hole of the standard well. A wellhead device: and pulling the instrument to be measured to move in the standard well so as to calibrate the instrument to be measured through the target model of the standard well. The filling device is used for filling the logging liquid into the well hole of the standard well so as to simulate the logging operation of the vertical well hole in the actual logging under the condition of filling the logging liquid.
As shown in fig. 1, the standard well includes a cement matrix 11 cast on the ground, a well bore 12 made of glass fiber reinforced plastics extending forward and backward is embedded and fixed in the cement matrix 11, and a well shaft of the well bore 12 is arranged in a horizontal direction in an inclined manner, that is, the front end of the well bore 12 is higher than the rear end. The borehole 12 is parallel and close to the right side wall surface of the cement matrix 11, an object model 13 positioned on the left side of the borehole 12 is embedded and fixed in the cement matrix 11, and a plurality of object models 13 are distributed at intervals in the front-back direction.
As shown in fig. 2, the wellhead device mainly comprises a logging traction mechanism and a cable traction mechanism which are arranged independently but work in cooperation with each other.
The logging traction mechanism comprises a traction winch 31, a traction drum 32 which rotates around an axis extending from left to right is arranged on the traction winch 31, a traction rope 33 is wound on the traction drum 32, one end of the traction rope 33 is a winding end, the other end of the traction rope 33 is a traction end, the winding end of the traction rope 33 is connected onto the drum, and after the traction end is led out from the traction drum 32, the traction end sequentially winds through a supporting pulley 34 and a reversing pulley 35 and is connected onto the instrument 4 to be measured. The reverse pulley 35 is rotatably mounted on a wellhead flange 36 around an axis extending from left to right, the wellhead flange 36 is mounted at the rear end of the borehole 12 to plug the rear wellhead of the borehole 12, two end faces of the wellhead flange 36 are respectively an inner end face for plugging on the rear wellhead of the borehole 12 and an outer end face opposite to the inner end face, and the reverse pulley 35 is mounted on the inner end face of the wellhead flange 36 through a wheel carrier. The cradle pulley 34 is attached to a support frame 61 provided in front of the borehole 12, and the support frame 61 is fixed to a support pier 62 formed by casting concrete. The reverse pulley 35 and the bracketing pulley 34 divide the traction rope 33 into three sections, namely a forward section 37 between the instrument 4 to be tested and the reverse pulley 35, a reverse section 38 between the reverse pulley 35 and the bracketing pulley 34 and a winding section 39 between the bracketing pulley 34 and the traction drum 32, wherein the forward section 37 is connected to the instrument 4 to be tested to pull the instrument 4 to be tested backwards, the reverse section 38 pulls the forward section 37 forwards through a rope section wound by the guide pulley, and the winding section 39 pulls the reverse section 38 forwards under the winding action of the traction drum 32. The functional requirements of the traction drum 32 are: providing more than 500kg of traction power; the traction speed is continuously adjustable between 3m/min and 15 m/min; a clutch is provided between the traction drum 32 and the corresponding power source; the traction drum 32 is equipped with a brake device; a rotating speed digital display device is arranged on the traction drum 32; the traction drum 32 is provided with a rope arranger. When the device is used, when the cable traction mechanism is used for drawing the instrument 4 to be tested to the front end wellhead of the borehole 12, the cable traction mechanism is loosened; switching a clutch corresponding to a traction drum 32 of the logging traction mechanism to an engaged state; the traction drum 32 winds the traction rope 33 according to a specified speed, and the traction rope 33 pulls the instrument 4 to be tested backwards through the forward section 37 under the reverse action of the reverse pulley 35; after the instrument 4 to be tested reaches the rear end wellhead position of the borehole 12, the traction drum 32 stops rotating, and the corresponding clutch of the traction drum 32 is switched to a separation state; the cable pulling mechanism starts to lift the instrument 4 to be tested, and the brake can be properly loaded in order to prevent the influence of the rotational inertia of the bracketing pulley 34 on the lifting of the instrument 4 to be tested. Requirements of the pulling rope 33: the pulling rope is firm and durable, and once the pulling rope 33 is found to be broken, the pulling rope can be immediately stopped from being used and replaced by a new pulling rope 33. The function of the diverting pulley 35 is to divert the traction direction of the traction rope 33 so that the pulling force of the traction drum 32 on the traction rope 33, which is pulling forward, is diverted by the guide pulley to a pulling force which is pulling backward. The line of contact of the bracketing sheave 34 and the reverse sheave 35 with the reverse section 38 of the pull line 33 is parallel to the well axis of the wellbore 12 so that the reverse section 38 of the pull line 33 is parallel to the well axis of the wellbore 12. The logging flange has the following functions: the method is used for plugging and opening a rear end wellhead of a borehole 12, so that before logging, a logging cable is used for dragging the instrument 4 to be tested into the borehole 12 by opening a logging flange, then the logging flange is installed on the rear end wellhead of the borehole 12, and the logging flange is opened until logging is completed, and the instrument 4 to be tested is taken out of the borehole 12.
The cable traction mechanism comprises a cable winch located in front of the borehole 12, the cable winch is provided with a cable drum which is rotatably assembled around an axis extending left and right, a logging cable 51 is wound on the cable drum, the two ends of the logging cable 51 are respectively a winding end and a connecting end, the winding end of the logging cable 51 is wound on the cable drum, the connecting end of the logging cable 51 is led out from the cable drum, the winding guide mechanism 52 penetrates into the borehole 12 from the front end wellhead of the borehole 12 and is connected on the instrument 4 to be tested, the guide mechanism 52 is used for radially constraining the logging cable 51 and avoiding the logging cable 51 from swinging in the pulling process. As shown in fig. 3, the pilot mechanism 52 is mounted on a support pier 62 together with a support frame 61. The guiding mechanism 52 mainly comprises an upper limit pulley 53, a lower limit pulley 54, a left limit pulley 55 and a right limit pulley. The upper limiting pulley 53 rolls against the top of the logging cable 51 to prevent upward swinging of the logging cable 51. The lower limiting pulley 54 rolls against the underside of the wireline 51 to prevent downward swinging of the wireline 51. The left stop pulley 55 rolls against the left side of the wireline 51 to prevent leftward swinging of the wireline 51. The right limiting pulley rolls against the right side of the logging cable 51 to prevent the logging cable 51 from swinging to the right. The upper limiting pulley 53 and the lower limiting pulley 54 are vertically arranged in a rolling manner to form a group of vertical limiting units for limiting the vertical swing of the logging cable 51, the left limiting pulley 55 and the right limiting pulley are horizontally arranged in a rolling manner to form a group of horizontal limiting units for limiting the horizontal swing of the logging cable 51, and the horizontal limiting units and the vertical limiting units form a guide mechanism 52 for limiting the logging cable 51 in any radial direction. In the calibration process of the instrument 4 to be measured, the guiding mechanism 52 enables the logging cable 51 to be always kept at the center of the front wellhead of the borehole 12; the vertical limiting unit vertically limits the logging cable 51 to one point, and the upper limiting pulley 53 and the lower limiting pulley 54 in the vertical limiting unit can move up and down relatively so as to facilitate the logging cable 51 with a logging bridle at the connecting end to be put in; the horizontal limiting unit limits the logging cable 51 to pass through at one point in the horizontal direction, and therefore the pulling and deviation effects of the lateral pulling force caused by the inclination angle between the cable drum on the logging winch and the logging cable 51 on the logging cable 51 can be avoided.
As shown in fig. 4, the pushing device is composed of a plurality of pushing trolleys 7. The structure of each pushing trolley 7 is the same. The pushing trolley 7 comprises a frame 71 of a frame structure, wheels 72 are arranged at the bottom of the frame 71, the height of the frame 71 can be lifted, a scissor-type lifting mechanism 73 is arranged at the top of the frame 71, the lifting mechanism 73 adopts a driving structure in the form of a screw rod and a nut, a bracket 74 is arranged at the top of the lifting mechanism 73, a supporting roller 75 is rotatably assembled on the bracket 74 around an axis extending leftwards and rightwards, and the supporting roller 75 can be supported below the instrument 4 to be tested for supporting. The length of the frame 71 can be adjusted according to the instrument 4 to be measured, and the length difference between the adjusted instrument 4 to be measured and the frame 71 is controlled to be about two meters; when the instrument 4 to be tested is connected, the pushing trolleys 7 are adjusted to be at the same height and on the same line, and the instrument 4 to be tested is horizontally visited on the supporting rollers 75 of the pushing trolleys 7, so that the preparation work before the tests such as connection, maintenance, inspection and the like of the instrument 4 to be tested can be conveniently carried out on the pushing trolleys 7; because the length of the well bore 12 of the radar standard well reaches 30 meters, the height difference between the front end and the rear end of the well bore 12 is 0.6 meter, and the instrument 4 to be measured enters the well bore 12 from the rear end of the well bore 12 for logging; after the logging is finished, the instrument 4 to be measured is pulled to the position of the rear-end wellhead through the logging traction mechanism, the operator pulls the instrument 4 to be measured to the pushing trolley 7, the instrument 4 to be measured is highly positioned in a horizontal state by the aid of the pushing trolley 7, and the instrument 4 to be measured can be maintained and detached.
As shown in fig. 5, the filling device mainly comprises a holding tank 81 and a three-way pipe. The holding tank 81 is located on the right side of the cement matrix 11, and the holding tank 81 is provided with a logging fluid, optionally a mud, for injection into the borehole 12. The three-way pipeline is pre-buried and fixed in the cement matrix 11 and connected between the containing pool 81 and the well hole 12, the three-way pipeline mainly comprises a main pipeline 82, a filling branch 83 and an emptying branch 84 which are mutually intersected and communicated, wherein one end of the main pipeline 82 is connected to the borehole 12 in a conducting manner, the other end is located at the intersection of the three-way pipeline, the inlet of the filling branch 83 is connected to the containing pool 81 in a conducting manner, the outlet is located at the intersection of the three-way pipeline, the outlet of the emptying branch 84 is connected to the containing pool 81 in a conducting manner, the inlet is located at the intersection of the three-way pipeline, and the filling branch 83 is provided with a filling pump 85, valves for controlling the on-off of the pipelines are respectively arranged on the main pipeline 82, the filling branch 83 and the emptying branch 84, and the three valves can be divided into a pump valve 86 on the filling branch 83, an emptying valve 87 on the emptying branch 84 and a main valve 88 on the main pipeline 82 according to the pipelines. In the preparation stage of well logging, closing the main valve 88, opening the pump valve 86 and the emptying valve 87, opening the filling pump 85, and pumping the well logging liquid out of one side of the accommodating pool 81 and injecting the well logging liquid into the accommodating pool 81 from the other side by the filling pump 85 so as to realize circulation of the well logging liquid in the accommodating pool 81 until the viscosity of the well logging liquid meets the well logging requirement; when the well logging liquid is filled into the well hole 12, all the valves are opened, and the well hole 12 is filled with the well logging liquid by the filling pump 85 in about three minutes; after the completion of the logging liquid is confirmed, closing the main valve 88, keeping the liquid level of the logging liquid in the well bore 12, and logging; after logging is complete, the main valve 88 and the vent valve 87 are opened and logging fluid is returned to the holding tank 81, which takes approximately one minute.
Another embodiment of the logging calibration device of the present invention: the present embodiment differs from the previous embodiment in that the pull line and the logging cable are led out from different ends of the borehole, and the corresponding logging winch and cable winch are separately arranged at both ends of the borehole.
Other embodiments of the logging calibration device of the present invention: the well logging traction mechanism and the cable traction mechanism can also share one winch, and at the moment, the winding directions of the traction rope and the well logging cable on a winding drum of the winch are opposite, so that when one of the traction rope and the well logging cable is paid off, the other one is taken up.
Claims (8)
1. The method for calibrating the logging instrument is characterized by comprising the following steps:
placing an instrument to be tested with a logging cable into a borehole of a standard well, wherein the borehole shaft of the borehole is horizontally arranged, the axis of the instrument to be tested is parallel to or coincided with the borehole shaft of the borehole, a traction rope and the logging cable are connected to the instrument to be tested, and the traction forces of the logging cable and the traction rope acting on the instrument to be tested are mutually opposite in the axial direction of the instrument to be tested;
injecting drilling fluid into the borehole, pulling the instrument to be tested to move from one end of the borehole to the other end of the borehole along the borehole shaft of the borehole through a traction rope, and transmitting a signal output by the instrument to be tested through a logging cable;
the standard well comprises a cement matrix poured on the ground foundation, the well hole is pre-buried and fixed in the cement matrix in the front-back extension direction, and the well hole is close to the right side of the cement matrix; and a plurality of target models which are positioned at the left side of the borehole and have a certain distance with the borehole are also pre-embedded and fixed in the cement matrix, and are distributed at intervals in the front-back direction.
2. The logging instrument calibration device special for implementing the logging instrument calibration method as claimed in claim 1, which is characterized by comprising a standard well fixedly arranged on a ground foundation, wherein a well hole with a well shaft horizontally arranged is arranged in the standard well; the well head device comprises a traction rope and a logging cable which relatively pull the instrument to be detected in the well shaft direction in the opposite direction, and the traction rope and the logging cable are connected to two relatively independent winding drums or connected to the same winding drum;
the standard well comprises a cement matrix poured on the ground foundation, the well hole is pre-buried and fixed in the cement matrix in the front-back extension direction, and the well hole is close to the right side of the cement matrix; and a plurality of target models which are positioned at the left side of the borehole and have a certain distance with the borehole are also pre-embedded and fixed in the cement matrix, and are distributed at intervals in the front-back direction.
3. The calibration device of the logging instrument as claimed in claim 2, wherein the well mouths at the two ends of the well bore are defined as a first end well mouth and a second end well mouth respectively, one of the pulling rope and the logging cable is a first rope body for pulling the instrument to be tested along the first end well mouth, and the other one of the pulling rope and the logging cable is a second rope body for pulling the instrument to be tested along the second end well mouth, and the first rope body and the second rope body both penetrate out of the first end well mouth of the well bore; the wellhead device further comprises a reverse pulley for the second rope body to wrap at the second end wellhead position, and the second rope body is divided into a forward section for pulling the instrument to be tested in the direction of the second end wellhead and a reverse section for pulling the forward section in the direction of the first end wellhead by the reverse pulley.
4. A calibration device for a logging tool according to claim 3, wherein the wellhead assembly further comprises a wellhead flange for plugging a wellhead fixed to the second end of the borehole, the wellhead flange having an inner end surface for facing into the borehole and an outer end surface opposite to the inner end surface, the reversing sheave being mounted on the inner end surface of the wellhead flange.
5. The calibration device of the logging instrument as claimed in claim 3, wherein the wellhead device further comprises a supporting pulley between the reversing pulley and the winding drum corresponding to the second rope body, and a connecting line of contact points of the supporting pulley and the reversing pulley, which are used for the contact of the reverse segments, is parallel to the well axis of the well hole or coincides with the well axis of the well hole.
6. A calibration device for a logging instrument according to any one of claims 2 to 5, wherein the well axis direction of the borehole is defined as a front-back direction, the wellhead device further comprises a guiding mechanism for limiting radial shaking of the logging cable in the corresponding reel and the instrument to be tested, and the guiding mechanism comprises an upper limiting pulley for rolling and abutting against the upper side of the logging cable and/or a lower limiting pulley for rolling and abutting against the lower side of the logging cable and/or a left limiting pulley for rolling and abutting against the left side of the logging cable and/or a right limiting pulley for rolling and abutting against the right side of the lateral cable.
7. The calibration device of the logging instrument as claimed in any one of claims 2 to 5, wherein the filling device comprises a main pipeline, one end of the main pipeline is in conduction connection with the borehole, the other end of the main pipeline is in conduction connection with a filling branch for filling logging liquid into the main pipeline and a venting branch for discharging the logging liquid from the main pipeline, a filling pump is arranged on the filling branch, an outlet of the filling branch and an inlet of the venting branch are in intersection communication with a corresponding port of the main pipeline, an inlet of the filling branch and an outlet of the venting branch are in conduction connection with a containing pool for containing the logging liquid, and valves for controlling the on-off of the pipelines are respectively arranged on the filling branch, the venting branch and the main pipeline.
8. The device for calibrating the logging instrument according to any one of claims 2 to 5, wherein the device further comprises a conveying cart for conveying the instrument to be tested, the conveying cart comprises a frame and a bracket arranged on the frame and used for supporting the instrument to be tested, and a lifting mechanism for lifting the bracket is arranged between the bracket and the frame.
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| SU824097A1 (en) * | 1979-01-09 | 1981-04-23 | Всесоюзный Научно-Исследовательскийи Проектно-Конструкторский Институтгеофизических Исследований Геолого-Разведочных Скважин | Method of acoustic well logging apparatus calibration |
| CN1851231A (en) * | 2006-05-24 | 2006-10-25 | 中国石化集团胜利石油管理局钻井工艺研究院 | Movable matural gamma scale well during drilling |
| CN102536199B (en) * | 2012-02-16 | 2016-01-06 | 中国石油天然气集团公司 | A kind of controllable source nuclear logging while drilling instrument calibration device and scale method |
| CN203175548U (en) * | 2013-01-06 | 2013-09-04 | 中国石油集团长城钻探工程有限公司 | Through casing pipe resistivity instrument scale detection system |
| CN203948090U (en) * | 2014-03-28 | 2014-11-19 | 西安石油大学 | Horizontal well mud is invaded the analogue experiment installation on resistivity logging response impact |
| CN105888647B (en) * | 2016-04-27 | 2020-05-19 | 长江大学 | Calibration method and device for acoustic variable density logging instrument |
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Effective date of registration: 20220210 Address after: 100028 Chaoyang District, Beijing Hui Xin Street 6, Twelfth level. Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: Sinopec Jingwei Co.,Ltd. Patentee after: SINOPEC NORTH CHINA PETROLEUM ENGINEERING Co.,Ltd. Patentee after: North China Measurement and control company of Sinopec Jingwei Co.,Ltd. Address before: 100728 9 Jishi Kou Road, Chaoyang District, Beijing Patentee before: SINOPEC OILFIELD SERVICE Corp. Patentee before: Sinopec North China Petroleum Engineering Co., Ltd |